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revision 1.275 by jmc, Thu Apr 8 00:25:10 2004 UTC revision 1.2177 by mlosch, Fri Sep 4 08:08:41 2015 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
8        efficient EVP method.
9      - introduce area-weighted averages for e12 (analogously to
10        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
11        remain, but also changing the order of terms in the previous average
12        changed the results as much) -> update experiment
13      - add SEAICE_DELTA_SMOOTHREG code
14      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
15        TEM-code
16      - adjust loop bounds so that only required fields are computed
17      - add new averaging code for zetaZ/deltaZ (again similar to
18        seaice_calc_viscosities.F), inactive by default for now (will change
19        results again), but will replace old code eventually
20    o eesupp/src:
21      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
22        to always cumulate tile local-sum in the same order
23        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
24        Still uses MPI_Allreduce (like standard code) but on array of tiles
25        and should be faster than GLOBAL_SUM_SEND_RECV code.
26      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
27        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
28      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 13 more exp.:
29         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
30         fizhi-cs-aqualev20, global_ocean_ebm, matrix_example, natl_box,
31         solid-body.cs-32x32x1, tutorial_advection_in_gyre, tutorial_baroclinic_gyre
32         and tutorial_held_suarez_cs.
33    
34    checkpoint65n (2015/07/29)
35    o pkg/thsice:
36      - add a warning when used with pkg/aim but without updating SST
37        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
38    o pkg/offline:
39      - change where Offline-Fields are loaded, from load_fields_driver.F to
40        directly within FORWARD_STEP, just after updating iter number and time;
41      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
42        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
43       These changes allow:
44        a) to recover exactly on-line results using deltaToffline=deltaTClock,
45        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
46        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
47        time-step, both with GM & KPP files and with recomputing these fields;
48        b) no needs to switch on staggerTimeStep anymore;
49        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
50      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
51    o pkg/offline:
52      - change (rarely used) offset-iteration parameter to an offset time (in s):
53        can easily recover previous offset-iter effect by setting offset-time
54        (offlineTimeOffset) to offset-iter x deltaToffline;
55      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
56        in KPP as part of surface buoyancy forcing) in offline run.
57      - fix ptracers KPP non-local term in the case where KPP is re-computed.
58    o OpenAD
59      - Adding preliminary ggl90 test to OpenAD verification.
60        Config. with ggl90 currently diverges after 64 time steps
61        so will need more work to become more stable
62      - Adding preliminary kpp test to OpenAD verification.
63        required small tweakes in kpp_routines.F
64      - Merge and update from Krishna Narayanan's contrib area:
65        * Add one variable for preliminary OpenAD DIVA
66        * Add replacement time-stepping for OpenAD DIVA
67        * genmake2 flag -diva (but only for OpenAD; preliminary)
68        * required modifs for OAD_support
69        successful preliminary test for tutorial_global_oce_biogeo/
70    o pkg/seaice:
71      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
72      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
73        delta with a smooth function in s/r seaice_calc_viscosity
74        (no effect on EVP)
75      - rename local suffix "sqr" into "sq" for more consistent variable names
76    o pkg/seaice:
77        add new parameter SEAICE_deltaMin that is used ***only***
78        for regularizing Delta (and nothing else, like the parameter
79        which is also used for all sorts of things SEAICE_EPS).
80        Defaults to SEAICE_EPS for backward compatibility only.
81    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
82        the wrong key by inialising it before use -> fixes a recomputation
83        problem but does not fix the gradient
84    o pkg/layers:
85      - move resetting of flux arrays to outside the iLa loop
86        (this caused layers_diapycnal to not work with more than one layer coord.)
87      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
88    o pkg/layers:
89      - remove from common block 3D layers fields (used to diagnose transport
90        in tracer coords) and declare them as local arrays in layers_calc.F
91    o pkg/seaice:
92      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
93        in lab_sea forward experiment (changes results -> updated)
94      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
95    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
96       computations; for SEAICE_VECTORIZE_LSR
97      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
98        sweep to the outside,
99      - remove store directives and add "CADJ loop sequential" directives
100        in analogy to model/src/solve_tridiagonal.F
101      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
102        boundaries to yield more readable code. This has also the charming side
103        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
104        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
105        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
106        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
107        an additional option)
108       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
109       but the adjoint gradients (which are affected by this change) still explode.
110    o coupler (atm & ocn _compon_interf):
111      - avoid using Exch2 IO mapping if not suitable.
112    
113    checkpoint65m (2015/06/15)
114    o pkg/layers:
115      - clean-up old parameters setting (from Sep 2012):
116        + remove old parameters setting from common block (declared locally);
117        + stop if any old parameter is mixed with new parameters;
118        + check for valid or consistent parameter setting (e.g., layers_name)
119      - check that layers_bounds for Pot.Density are in the right range;
120        this is supposed to catch un-updated setting after recently shifting
121        potential density field "prho" by -1000 (now in "sigma" scale).
122    o pkg/layers:
123      - Added missing call to layers_fill for keeping track of tottend in
124        pkg/diagnostics/diagnostics_fill_state.F
125    o pkg/layers:
126      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
127        of diapycnal fluxes
128    o pkg/layers:
129      - reverted changes to interpolation to previous treatment; there
130        was never actually a problem
131    o pkg/layers:
132      - fix interpolation of layers tracers in the presence of partial cells
133      - add lots of new functionality to compute water mass transformation
134        (enabled by CPP flag LAYERS_THERMODYNAMICS)
135      - add new calls from main code (diags_oceanic_surf_flux.F,
136        thermodynamics.F, impldiff.F) and gad to save the necessary fields
137        for layers_thermodynamics calculations
138    o pkg/ptracers:
139      - add capability of stepping a passive tracer forward without advection
140        by setting PTRACERS_advScheme to 0.
141    o pkg/diagnostics:
142      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
143    o pkg/layers:
144      - shift potential density field "prho" by -1000 for density layer averaging so
145        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
146        Note that density bin boundaries (layers_bounds in data.layers) have
147        to be set accordingly (i.e., shifted, in sigma scale).
148    o pkg/layers:
149      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
150      - fix calculation of layer non-weighted velocity and layer probability
151      - add diagnostics for pot.density used for layer averaging
152    o pkg/seaice:
153      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
154        positiveness, modify a few comments and improve variable names,
155      - the changed computation of deltaC affects most seaice-related
156        experiments at the truncation level.
157        seaice_itd.thermo is affected by far the most, with
158        only 7 digits of agreement remaining; update experiments.
159    
160    checkpoint65l (2015/05/04)
161    o pkg/shelfice:
162      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
163        factor drKp1 to zero where it is negative (ie. do not use
164        SHELFICEBoundaryLayer if hFacC>1)
165      - the same for factor drLoc in shelfice_forcing.F
166    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
167        with modules in ptracers, when using testreport option "-small_f"
168    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
169      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
170    o verification/testreport
171      - add new option -small_f
172        with this option testreport first makes the target small_f (*.f files)
173        before running make (all). This is useful for explicit inlining when
174        all sources need to be full available.
175    o pkg/exf/exf_interp.F:
176        remove previous changes related to reverse (decreasing) input grids latitude
177    
178    checkpoint65k (2015/04/01)
179    o pkg/ecco:
180        fix missing cosphi initialization; use eccoiter in place of optimcycle;
181        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
182        instead of active read/write
183    o pkg/ctrl:
184        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
185        instead of active read/write.
186    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
187        return if .NOT.useAUTODIFF
188    o pkg/seaice: add CPP brackets (cost function related).
189    o model/src:
190        add useAUTODIFF run time switch.
191    o pkg/exf/exf_interp.F:
192        add code to allow input grids with latitude starting in the north (i.e. when
193        j=1 corresponds to northern edge of field); modify global_with_exf to test
194        this feature.
195    o verification/testreport:
196      - replace "grep -A3" with POSIX conformal sed command, because there are
197        implementations of grep that cannot do contextual searches
198      - replace "cat -n" by "nl" (two occurrences), because not all implementations
199        of "cat" have the option "-n"
200    o model/src:
201        add new file gsw_teos10.F that contains 3 functions, more or less a copy
202        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
203        convert from conservative to potential temperature. For now they are not
204        called anywhere.
205    o pkg/ggl90: make "useIDEMIX" useful
206      - re-organize code in s/r ggl90_calc a little to move computations that
207        are different for idemix into separate loops (changes verification
208        experiment idemix at truncation level, 12 digits remain -> updated)
209      - requires 2 new 2D fields KappaM, verticalShear
210      - make hFacI and recip_hFacI local 3D variables that are passed to
211        s/r ggl90_idemix
212      - fix and improve some comments
213    
214    checkpoint65j (2015/02/25)
215    o pkg/openad
216      - synchronize seawater.F with version in model/src: replace routine
217        body of sw_temp by calling sw_ptmp and fix/add a few comments.
218    o pkg/mnc:
219      - change default value of pickup_read/write_mnc params to FALSE
220        (since few features are missing in reading MNC pickup files).
221    o model/src:
222      - change default (background) vertical diffusivity for salt to be the
223        temperature (background) vertical diffusivity.
224      - change background vertical diffusivity in vertical mixing pkgs ggl90,
225        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
226        This makes ptracers default diffusivity (that uses salt diffKr) more
227        consistent with vertical mixing schemes.
228    o verification/testreport:
229      - fix typo in "-pcls" option ;
230      - put temp files in /tmp (instead of in local dir)
231      - add option "-ncad" to use genmake2 new option "-nocat4ad"
232      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
233    o pkg/ggl90 (idemix code):
234      - apply few fixes ; add some missing "_d 0" ; update output of exp.
235        global_ocean.90x40x15.idemix
236    o OpenAD
237      - enable active file I/O and begin removal of work-around code
238        for OpenAD for handling control variables (memory vs. active files)
239      - new CPP options file OPENAD_OPTIONS.h
240      - revert to genarr2d gradient check for hs94.1x64x5
241      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
242      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
243    o tools/genmake2:
244      - add option for an alternative Makefile (from Martin) where multiple
245        source files are sent to TAF (instead of all in one file).
246    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
247      - code provided by Carsten Eden as an extension of ggl90
248      - so far the code is turned on within ggl90 by setting a CPP-flag at
249        compile time; a runtime flag implementation is not yet complete
250      - tested in new verification experiment global_ocean.90x40x15.idemix
251    o verification:
252      - reduce length of the AD test run by half for experiments
253        global_ocean.cs32x15 (std + thsice) and isomip
254      - enable active file I/O for OpenAD, adjust verifications accordingly
255      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
256    o verification/testreport:
257      - fix two non-POSIX sed statements so that there are no error messages
258        on Mac OS X
259      - replace hostname -s with hostname | sed 's/\..*$//'
260    o model/src/seawater.F:
261      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
262        (following the matlab code), which would have avoided the bug caught
263        by Matt (see below) in the first place
264    o pkg/shelfice:
265      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
266        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
267      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
268        ice-shelf case (i.e., within surface level).
269      - add config summary in shelfice_check.F
270      - remove global variable recip_SHELFICElatentHeat and replace by a local
271        variable recip_latentHeat
272      - introduce diagnostics for friction velocity uStar (in case of
273        SHELFICEuseGammaFrict)
274      - change verification experiment isomip.htd:
275        + start from pickup (as input_ad at nIter0=8640)
276        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
277        + test SHELFICEuseGammaFrict = .TRUE.
278        + test SHELFICEadvDiffHeatFlux = .TRUE.
279    o model/src:
280      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
281        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
282        update output of experiments global_with_exf.yearly and isomip (all 6).
283    o pkg/shelfice:
284      - change setting of kTopC to also be zero where there is no ice-shelf.
285      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
286        ice-shelf is.
287      - first attempt to get RealFreshWaterFlux effects: for now, only without
288        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
289    o pkg/seaice: add the option to prescribe a fixed thickness PDF
290      for thermodynamic calculations
291      - because of divisions of the type 7/7 not exactly equal to 1, this change
292        affects results of some verification experiments by up to 4 digits:
293        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
294        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
295        adjoint: lab_sea, lab_sea.noseaicedyn
296        -> updated
297    
298    checkpoint65i (2015/01/23)
299    o model/src:
300      - change units of frictionHeating field from W to W/m^2
301      - fix bug in frictional heating from stratospheric drag in
302        S/R ATM_PHYS_TENDENCY_APPLY_V
303      - with synchronous time-stepping: move resetting to zero of frictionHeating
304        field from load_fields_driver.F to thermodynamics.F ;
305      - add diagnostics for frictional heating.
306    o model/src & gmredi K3D:
307      - add frictionHeating field to pickup-files (for synchronous time-stepping)
308      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
309      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
310        and name in pickup file).
311      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
312    o model/src:
313      - move (from ini_forcing.F) initialisation of all arrays in header file
314        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
315        (since Nov 2012) with option selectAddFluid=1.
316    o pkg/shelfice:
317      - change units (+ document) of newly added field "shelfIceMassDynTendency"
318      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
319    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
320    o pkg/seaice: two new runtime parameters:
321      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
322        long overdue
323      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
324        parameterization of tensil stress for fast ice (does not do anything yet)
325    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
326        for LSR: move checking overlaps out of JFNK-if-block
327    o pkg/atm_phys:
328      - move copy of grid and dynamical fields out of atm_phys_driver.F into
329        new S/R ATM_PHYS_DYN2PHYS.
330      - fix level height for Linear Free-Surf case (to be consistent with
331        fixed-in-time pressure levels).
332    o pkg/mom_common (bottomdrag):
333      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
334        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
335        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
336    o pkg/shelfice (u/v_drag):
337      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
338      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
339        (now similar to shelfice_u_drag.F)
340      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
341        from mom_vecinv.F (similar to mom_fluxform calls).
342    o pkg/mom_common (bottomdrag):
343      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
344      - add options for alternative discretisation of velocity norm in quadratic
345        bottom drag: averaging of grid-cell-center KE to U.point and V.point
346        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
347        improves when averaging only the other component (e.g. vVel for U bottom
348        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
349      - add options (bottomVisc_pCell) to account for partial-cell in bottom
350        friction (no-slip BC) thus getting the true distance from the bottom;
351        off by default since this also reduces model stability (explicit bottom
352        friction). Changes produce different machine truncation with linear-drag
353        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
354        front_relax (bvp & mxl, 10 & 11 digits).
355    o model/src & mom pkgs:
356      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
357        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
358      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
359        just copy level Nr value to level Nr+1.
360    o doc:
361      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
362    o pkg/streamice:
363      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
364        SHELFICE.h: move array shelficemass to init_varia, initialise
365        from array shelficemassinit, which is set in init_fixed and
366        has option to be set from file; introduce array
367        shelficeMassDynTend array, set thru file in init_fixed
368      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
369        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
370        pkg/streamice
371      - shelfice_thermodynamics.F: call shelfice_step_icemass if
372        SHELFICEMassStepping = .true.
373      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
374    
375    checkpoint65h (2014/12/17)
376    o verification/global_ocean.90x40x15, global_ocean_ebm:
377      - update to generic controls.
378    o pkg/ctrl:
379      - ctrl_map_ini_genarr.F: test for igen>0
380      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
381      - move gentim2d part of ctrl_map_ini_genarr.F to
382        new separate routine : ctrl_map_ini_gentim2d.F
383      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
384        add time variable weights and cyclic controls (time mean,
385        seasonal cycle, etc) capabilities to gentim2d
386    o pkg/ecco:
387      - move reading of error, conversion to weights from
388        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
389    o global_oce_llc90, cs32:
390      - activte sbo.
391      - CTRL_SIZE.h : add maxCtrlProc.
392      - activate the new genctrl capabilities.
393      - update following reorganization of global_oce_input_fields.tar.gz  
394    o pkg/ctrl/ctrl_ad_diff.list:
395      - add missing ctrl_init_rec.f
396    o tools/OAD_support/keepOriginal:
397      - add ctrl_init_rec.F
398    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
399      - avoid recomputations of xx_gentim2d_dummy.
400    o momentum diagnostics:
401      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
402        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
403    o pkg/seaice/seaice_lsr.F:
404      - fix computation of BU/BV, make sure they are non-zero, only necessary
405        for cubed sphere exchanges and SEAICE_OLx/y>0.
406        This makes calling s/r fill_cs_corner_rl obsolete (removed).
407    o verification/global_ocean.cs32x15/input.seaice
408      - add test for strong implicit coupling and restricted addtive Schwarz
409        methods for LSR
410      - update results/output.seaice.txt
411    o verification/tutorial_global_oce_biogeo:
412      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
413        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
414        update output_adm,_oadm,_tlm.txt
415    o pkg/dic:
416      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
417      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
418        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
419    o verification/tutorial_global_oce_biogeo:
420      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
421        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
422        update output_adm,_oadm,_tlm.txt
423    o eesupp/src:
424      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
425        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
426    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
427      LSR (following Hutchings et al. 2004)
428      - introduce zetaZ as a global variable (requires adjustments in
429        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
430        in seaice_calc_viscosities.F
431      - new flag SEAICEuseStrImpCpl (default off)
432      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
433        momentum equations
434      - JFNK-solver (preconditioner) adjusted to allow using this method
435        (where it does not have any positive effect)
436    o pkg/seaice
437      - add overlap for restrictive additive Schwartz method also to LSR, but
438        turn it off by default (because it only seems to work for non-cubed
439        sphere/llc topologies)
440    o pkg/autodiff
441      - add extra exchanges in addummy_in_steppging also for mnc output
442    o pkg/seaice:
443      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
444        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
445    o pkg/obcs:
446      - add option to specify domain-connected piece Id along OB though files
447        (for now, only used to diagnose PhiVel; default =1 -> global correction)
448      - modify obcs_diag_balance.F to process each connected-part separately;
449        exclude OB where Id = 0 but keep the full divergence there (-> constant
450        Psi along this portion of OB and all inflow derived from grad(Phi))
451      - add example of OB-conect files in verification/so_box_biogeo/input.
452    o pkg/diagnostics:
453      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
454      a) use non zero matrix element across OB and solve for Phi 1 grid point
455         outside OB (i.e, where tracer OBCS are applied).
456      b) global imbalance of inFlow/outFlow across OB: instead of modifying
457         velocity across OB, spread it uniformly along the OB in the RHS.
458    
459    checkpoint65g (2014/11/19)
460    o pkg/diagnostcis:
461      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
462    o pkg/my82,pp81,kl10:
463      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
464        field diffKr as background diffusivity to set minimum diffusivity value.
465    o pkg/seaice:
466      - add new parameter SEAICEuseEVPrev (for revisited EVP by
467        Bouillon et al 2013)
468      - add SEAICE_evpAlpha/Beta to namelist
469      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
470        involve trivial re-ordering of divisions/multiplications that should not
471        have any effects, but ... they do change the results of lab_sea.hb87 so
472        that only 2 digits of agreement remain, in line with the general
473        instability/fragility of the evp-code. For now, I do not care and just
474        update the verification experiment
475    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
476      - remove xx_genarr2d_numsmooth etc
477      - use xx_genarr2d_preproc etc instead
478      - carry out smooth_correl2D at initialization stage rather than during
479        time stepping.
480      - get smoothOpNb from xx_gentim2d_preproc
481    o global_oce_cs32 :
482      - add test of generic ecco capabilities.
483    o pkg/exf/exf_getsurfacefluxes.F :
484      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
485    o pkg/ctrl,ecco :
486      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
487        is defined.
488    o pkg/seaice: add diagnostics for Delta (deformation parameter)
489    o model/src:
490      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
491        diffusivity (background) is specified but ignored.
492    o verification:
493      - in testreport, convert hostname to lower case for default output dir name
494    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
495    o pkg/dic: add modifications from Hajoon:
496      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
497      - light attenuation: add self-shading effect by climatological Chlorophyll
498        (read from file).
499    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
500        compiles when SEAICE_ALLOW_DYNAMICS is undefined
501    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
502        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
503        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
504        approach where CPP_OPTIONS.h includes an omnipotent
505        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
506    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
507        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
508    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
509        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
510        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
511    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
512      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
513      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
514      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
515      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
516    o pkg/ctrl,ecco,exf :
517      - remove variables associated with NON-generic costs,
518        unless ECCO_CTRL_DEPRECATED is defined.
519      - remove NON-generic NON-obcs controls,
520        unless ECCO_CTRL_DEPRECATED is defined.
521    o pkg/ctrl : added ctrl_local_params.h
522    o pkg/ecco : added ecco_local_params.h
523    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
524        experiments, which will progressively be removed once the
525        experiments are revised to use only generic controls/costs.
526    
527    checkpoint65f (2014/10/13)
528    o pkg/ctrl, ecco, seaice : minor changes in headers
529    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
530        cost function and control capabilities added since checkpoint65c.
531    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
532    o pkg/ecco: increase modularity and improve logic
533      - ecco_toolbox.F (new) : basic operations that are often used,
534        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
535        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
536      - cost_gencal.F (new) : determine filnames and records.
537      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
538      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
539        and exploit the above functions leading to more compact code.
540      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
541      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
542        using_ers, using_gfo, using_mdt is now only defined within gencost)
543    o pkg/ecco: extend generic cost capabilities
544      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
545        capabilities via gencost_preproc (+ _c,_i,_r related params),
546        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
547        gencost_outputlevel arguments to cost_generic
548      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
549        and active_read, making room for gencost_preproc to take effect.
550        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
551      - pkg/ecco/cost_generic.F :
552        compute and store misfit maks*(model-data) in localdif that is
553        then used in cost and for output, output misfit if outlev.GT.0
554      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
555        rather gencost_barfile for deciding whether to write barfile
556      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
557      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
558        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
559      - pkg/ecco/ecco_summary.F : report gencost variables
560      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
561    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
562    o pkg/ecco: internal re-organization
563      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
564        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
565        mv relevant variables definition from ecco_cost.h to ecco.h,
566        make sure gencost routines only include ecco.h)
567      - throughout : add missing CCP switches, rm unused variables,
568        and rm un-necessary CPP switches
569      - throughout gencost routines : replace modelstartdate with
570        gencost_startdate when needed
571      - cost_bp_read.F : use arguments, instead of common blocs
572        so that it can be used also by (new) cost_gencost_bpv4.F
573      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
574      - ecco_phys.F : compute etanFull
575      - ecco_readparms.F : rename using_topex as using_tpj, add
576        bpv4-grace to gencost list, initialize added parameters
577      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
578    
579    checkpoint65e (2014/09/28)
580    o pkg/obcs:
581      - replaced the just-added CPP options with run-time variables
582        (see pkg/obcs/OBCS_PARAMS.h for details)
583    o pkg/obcs:
584      - add additional CPP options for sponge boundary layers
585        (see pkg/obcs/OBCS_OPTIONS.h for details)
586    o pkg/atm_phys:
587      - implement simple (obliquity only, assuming circular planet orbit)
588        seasonal cycle for incoming insolation ; used when run-time parameter
589        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
590    o pkg/exf, pkg/ecco, pkg/ctrl:
591      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
592      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
593      - implement gentim2d for xx_tauu, xx_tauv
594    o pkg/ctrl, pkg/ecco :
595      - fix and complement the generic controls implementation
596    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
597        pkg/shelfice/shelfice_thermodynamics.F,
598        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
599        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
600      - add weight in CTRL_GET_GEN calls
601    o pkg/ctrl :
602      - ctrl_get_gen.F : add weight as input parameter, and apply
603        it directly rather than using smooth_correl2Dw (to be retired).
604      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
605    o pkg/ctrl :
606      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
607        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
608      - re-activate ctrl_summary (call in ctrl_init.F)
609    o pkg/ctrl/ctrl_cost_gen.F :
610      - fix CCP brackets, remove un-necessary myiter, mytime
611    o pkg/ecco, pkg/ctrl :
612      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
613      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
614      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
615      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
616    
617    checkpoint65d (2014/09/15)
618    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
619      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
620        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
621    o pkg/ctrl/ctrl_map_ini_genarr.F :
622      - remove compilation failure
623      - replace hard coded example
624      - use ctrl_map_ini_gen2D, 3D
625    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
626      - on/off switch based upon xx_genarr2d_weight,3d
627    o src/packages_init_variables.F :
628      - regroup pkg/estimation calls
629      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
630        (moved to ctrl_init_variables)
631    o cost/cost_init_varia.F :
632      - remove ecco_cost_init_varia
633        (moved to ecco_init_varia)
634    o ctrl/ctrl_init_variables.F :
635      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
636      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
637    o ctrl/ctrl_map_ini.F :
638      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
639        (moved to ctrl_init_variables)
640    o ctrl/ctrl_map_ini_ecco.F :
641      - remove ECCO_PHYS (mv to ecco_init_varia)
642      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
643    o ecco/ecco_ad_diff.list :
644      - add ecco_init_varia.f
645    o ecco/ecco_init_varia.F
646      - new routine
647    o pkg/streamice:
648      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
649        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
650      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
651    o pkg/generic_advdiff:
652      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
653    o pkg/exf:
654      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
655         xxg_precip capability
656      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
657    o pkg/ctrl:
658      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
659    o model/src/load_fields_driver.F :
660      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
661        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
662    o OpenAD verification experiments:
663      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
664        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
665        for now, only in pkgs used in OpenAD verification experiments.
666      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
667        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
668        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
669        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
670    o OpenAD verification tests:
671      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
672      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
673        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
674      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
675        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
676    o model/src & generic_advdiff:
677      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
678        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
679        dynamics requires valid tracer forcing only over tile interior but, for
680        some diagnostics, may need to extend it over 1 point in tile halo region.
681      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
682        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
683        setting in temp/salt/ptracer_integrate.F
684    o pkg/dic:
685      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
686        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
687        in gchem_forcing_sep.F
688    o pkg/autodiff & obcs:
689      - add storage of current OB values for U & V (was already done for T & S).
690    
691    checkpoint65c (2014/08/30)
692    o pkg/dic:
693      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
694        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
695        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
696    o verification:
697      - new experiment testing OBCS and DIC pkgs, using params & output from
698        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
699        passage: take OBCS from the last year of a 2 yrs simulation and initial
700        conditions from t=1.yr while keeping the same forcing.
701    o model/src:
702      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
703        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
704    o pkg/diagnostics (Stats-Diags):
705      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
706        a) refine region where stats are computed, excluding where arrhFac=0 ;
707        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
708        c) extend regional stats over the region edges (for U or V pt location).
709    o pkg/gchem:
710      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
711        pkg/dic is currently changing/updating ptracers values beyond the OB).
712    o verification (hs94):
713      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
714        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
715        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
716        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
717    o pkg/ptracers:
718      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
719        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
720      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
721        with AB-2 code (so that it get tested).
722    o model/src:
723      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
724        with AB-2 code (previously only available with AB-3 code).
725        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
726        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
727        there, by calling CYCLE_AB_TRACER).
728    o pkg/generic_advdiff:
729      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
730        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
731        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
732        S/R temp/salt/ptracers_integrate.F
733    o model/src & pkg/ptracers:
734      - remove common block variables gT,gS (in DYNVARS.h), except when
735         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
736      - remove common block variable gPtr.
737    o model/src & pkgs:
738      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
739         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
740         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
741         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
742      + change accordingly all calling S/R.
743      - use local temperature/salinity/ptracer tendency array (without bi,bj)
744        in S/R temp/salt/ptracers_integrate.F
745    o pkg/seaice:
746      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
747        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
748      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
749        in seaice_lsr
750      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
751        in s/r seaice_lsr_calc_coeffs
752    o pkg/mdsio:
753      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
754        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
755        too long (e.g., > MAX_LEN_FNAM/2 )
756    
757    checkpoint65b (2014/08/12)
758    o pkg/matrix:
759      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
760    o model/src:
761      - fix initialisation of geothermalFile; compile geothermal-flux code in
762        natl_box verification experiment.
763    o model/src & pkg/down_slope:
764      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
765      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
766        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
767        results at machine truncation level: update output of experiments
768        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
769    o pkg/diagnostics (Stats-Diags):
770      - do not cumulate the full volume when DIAGNOSTICS_FILL is
771        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
772        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
773        times (but Min,Max and StD are still wrong).
774    o model/src:
775      - add geothermal flux forcing: read in ini_forcing.F as time-constant
776        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
777    o model/src:
778      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
779        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
780        arrays are already updated while adjustments (filters, conv.adjustment) are
781        still applied later, in S/R TRACERS_CORRECTION_STEP.
782    o model/src:
783      - store in common bloc array "rhoInSitu" the virtual potential temperature
784        anomaly that is used to compute geopotential: this make the atmos code
785        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
786    o pkg/seaice/seaice_lsr.F
787      - rename integer variable ilcall to ipass (that's what it is called
788        in the residual diagnostics
789      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
790        default) for improved non-linear convergence of the first few steps
791      - adjust a few comments and add new ones to explain some of the store
792        directives
793    o pkg/generic_advdiff (& ptracers):
794      - re-work the code to check for valid advection scheme and for minimum
795        size of overlap (now stored in local common bloc in gad_advscheme.F)
796    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
797      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
798      - add an auxilliary variable "bet" and fix store directives and keys in
799        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
800        less exact gradients in my tests); but there are still
801        recomputation warning (although gradients are sort of OK), when
802        SEAICE_LSR_VECTORIZE is not defined, so this flag and
803        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
804      - update verification experiments lab_sea.
805      - change some comments in S/R seaice_calc_viscosities
806    o model/src:
807      - if staggerTimeStep=T, always apply exchange to velocity field in
808        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
809        (independent of using multi-dim advection or not); no effect on FWD run
810        but affects AD results (at machine truncation level): update output of
811        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
812        and isomip (oad: 12.d).
813    o pkg/generic_advdiff:
814      - stop if doAB_onGtGs is set to FALSE but ignored
815      - refine warning related to stability of tracer time-stepping
816        regarding internal wave dynamics.
817      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
818        on staggerTimeStep & implicitIntGravWave (will now get a warning
819        if potentially unstable).
820    o pkg/kl10:
821      - add new pkg "kl10" for mixing due to internal wave breaking, from
822        http://www.sciencedirect.com/science/article/pii/S1463500310000144
823        (contribution from Jody Klymak), tested in verification experiment
824        verification/internal_wave/input.kl10/
825    o isomip experiment:
826      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
827        (input.htd) and update the output.
828    o cd_code experiments:
829      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
830        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
831        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
832        update the corresponding output.
833    o pkg/seaice:
834      - reduce the number of include files and store directives in
835        S/R seaice_lsr_tridiagu/v
836      - change the order of loops in one case in S/R seaice_lsr_tridiagv
837        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
838        get rid off one store directive (a TAF bug?)
839      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
840        S/R seaice_lsr_tridiagv to change the loop range for consistency
841      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
842      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
843        S/R seaice_lsr_tridiagu/v (requires update of
844        offline_exf_seaice/input.dyn_jfnk)
845    
846    checkpoint65a (2014/07/27)
847    o model/src:
848      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
849        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
850        (topo in p-coords, ice-shelf in z-coords); update output of experiments
851        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
852    o model/src:
853      - collect momentum forcing tendency into local 2-D array (passed as argument
854        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
855        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
856        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
857      - collect T & S forcing tendency into local 2-D array (passed as argument to
858        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
859        affects results at machine truncation level (e.g., ocean: if using
860        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
861        correction due to vertical advection).
862      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
863        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
864        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
865        obcs_ctrl (ad & fwd grd @ 12 & 7).
866    o pkg/ptracers & diagnostics:
867      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
868        title (to avoid some unexpected truncation); sort out ptracers diags units.
869      - collect ptracer forcing tendency into local 2-D array (passed as argument
870        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
871    
872    checkpoint65 (2014/07/18)
873    o pkg/fizhi:
874      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
875        affects results at machine truncation level. Update output of experiments
876        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
877    o pkg/seaice: more clean up
878      - rename TAF common block tapes to be more consistent and remove
879        unnecessary duplicates
880      - add store directives to remove more recomputations, but use smaller
881        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
882        The idea behind this flag is to reduce the memory footprint when the
883        adjoint of the LSR is not required. As of now, defining the flag
884        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
885        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
886        For experiment offline_exf_seaice, this means on a linux box with gfortran
887        nearly a factor of 10 (but keep in mind there is mostly seaice code in
888        this experiment):
889        > size mitgcmuv_ad
890        text    data        bss     dec        hex
891        5100659 1216  220458952  225560827  d71c8fb
892        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
893        but only a moderate increase of 36% for global_ocean.cs32x15:
894        text    data        bss     dec        hex
895        6695027 1648 1014578664 1021275339 3cdf6ccb
896        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
897      - note: there are still recomputations in global_ocean.cs32x15 and
898        offline_exf_seaice and the gradient agreement changes (gets a
899        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
900      - in general, the AD gradients still are wrong
901    o OpenAD
902      - clean up code_oad/ directories somewhat by moving files
903        dontCompile, dontTransform, keepOriginal to OAD_support/
904    o model/src:
905      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
906        (not currently tested): add dissipation terms before NLFS rescaling of
907        tendencies (previously done after).
908    o pkg/diagnostics:
909      - write stats-diags in ascii file with more digits (same as in monitor).
910    o pkg/down_slope:
911      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
912        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
913    o model/src:
914      - new file "apply_forcing.F" containing all the code previously in
915        external_forcing.F, but with new argument list: pass, as new argument,
916        the current level tendency array to update (instead of a direct update
917        of the common bloc array). Change the corresponding calls.
918      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
919        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
920    o pkg/seaice/seaice_lsr, a little bit of clean up
921      - rearrange some code blocks, so that now all calculations for
922        setting up the right-hand-sides done within one single block
923        (I find that easier to read and understand)
924      - rearrange freedrift-code to reduce the number of ifdefs
925      - adjust some indentations and comments
926    
927    checkpoint64z (2014/07/10)
928    o model/src and several pkgs:
929      - change argument list of all S/R called from external_forcing.F and
930        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
931        to pass, as argument, the current level tendency array to update
932        (instead of a direct update of the common bloc array).
933      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
934      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
935    o pkg/seaice/seaice_lsr.F
936      - always initialize local arrays in seaice_lsr_tridiagu/v
937      - add more local tapes to seaice_lsr_tridiagu/v
938      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
939        keep it in bi/bj loop; this seems to be essential
940      - gradients are still wrong but only by 4-7 orders of magnitude
941        instead of 15 orders of magnitude, lab_sea improves a little
942    o pkg/seaice
943      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
944        generates unnecessary code in seaice_lsr_ad
945      - add more store directives in seaice_lsr to avoid unnecessary code
946        in seaice_lsr_ad
947      - exclude some residual computations in seaice_lsr when
948        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
949        in seaice_lsr_ad
950      - add more storing, a new tape (model/src/the_main_loop.F) and
951        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
952        and klockey should be checked by a specialist)
953      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
954        and update lab_sea after previous changes in pkg/seaice below
955    o pkg/autodiff:
956      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
957        viscFacInAd : run time parameters allowing for adjoint switches
958        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
959    o pkg/ecco:
960      - introduce cost_gencost_boxmean.F that computes a box mean
961        temperature (for use in adjoint sensitivity studies).
962    o model/src/set_defaults.F : initialize viscFacAdj to 1.
963    o pkg/mom_common/mom_calc_visc.F:
964      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
965    o pkg/seaice/seaice_summary.F:
966      - statement for SEAICEadjMODE now in autodiff_readparms.F
967    o pkg/seaice:
968      - remove some store directives and add new ones in an effort to get
969        finally rid off the recomputation warnings. This is successful
970        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
971        defined (i.e. no extensive recomputation warnings left), but there
972        are still too many recomputations on the solver iteration level
973      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
974      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
975        SEAICE_SIZE.h
976      - add a store directive in S/R seaice_calc_viscosities
977    o pkg/seaice (ITD code):
978      - fix definition of Hlimit for multi-threaded case
979      - use double precision arithmetic to compute Hlimit: this affects results;
980        update output of experiment seaice_itd.
981    o replace content of verification/seaice_itd
982      - instead of a 1D column use the configuration of offline_exf_seaice
983        to test the ice thickness distribution code with ridging
984      - this is a first shot at this experiment
985      - change of some defaults of ridging parameters SEAICEhStar (from
986        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
987        and lot of new comments.
988    
989    checkpoint64y (2014/06/20)
990    o pkg/seaice/seaice_reg_ridge.F:
991      - modify the regularization of very small volumes of ice; only check
992        total volume HEFF, and do not apply correction to individual ice
993        classes because that leads to funny patterns in the heat and fw-fluxes
994        into the ocean. Adjust seaice_itd/results/output.txt
995      - replace nITD by SEAICE_multDim in loop-ranges
996    o pkg/exf:
997      - add code to process the case field period = -12. with UV interpolation.
998      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
999        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1000    o verification/global_with_exf:
1001      - switch all fields period to -12. (was previously untested) in input/data.exf
1002        (but keep secondary test ".yearly" unchanged); update the reference output.
1003    o pkg/cal:
1004      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1005    o pkg/exf:
1006      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1007        to replace logical switch "exf_verbose"
1008      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1009    o pkg/sbo:
1010      - update from Katherine Quinn: evaluate mass directly from density and SSH
1011        (budget using Finite Volume method) instead of from bottom pressure.
1012      - allow testreport to collect few selected SBO output ; tested in exp.
1013        global_ocean.90x40x15 (after updating the results, to include SBO output).
1014      - fix some multi-threading issues (in output part).
1015    o model/src & most packages:
1016      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1017      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1018        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1019        "data.{pkg}" exist ; and leave the S/R (return) just after.
1020      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1021        + call LAND_READPARMS from packages_readparms.F
1022    o pkg/seaice:
1023      - remove code that resets useThSice in S/R seaice_readparms and
1024        replace it by a warning in S/R seaice_check
1025      - remove parameter MULTDIM, replace with nITD and runtime
1026        parameter SEAICE_multDim (still hard-wired to nITD if
1027        SEAICE_ITD is defined)
1028    
1029    checkpoint64x (2014/05/24)
1030    o verification/lab_sea:
1031      - update adjoint and TLM output following changes to pkg/salt_plume
1032      - un-do the update after putting back local recip_Cp in few places.
1033    o pkg/salt_plume: modifications by An Nguyen:
1034      - add capability to do brine rejection (salt-plume) as function of
1035        volume+tracers (instead of only salinity tracer).
1036      - conserve volume by exchanging volume from each kLev to above to
1037        accommodate in-coming brine volume
1038      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1039      - switch KPP surf buoyancy due to brine forcing to 3-d
1040        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1041      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1042      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1043        in East/West Arctic.
1044    o pkg/sbo:
1045      - incorporate modifications from Katherine Quinn to enable the use of sbo
1046        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1047        output for future testreport verification (unfinished).
1048    o pkg/atm_phys:
1049      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1050        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1051        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1052    o pkg/seaice
1053      seaice_calc_ice_strength.F: modify expression to avoid divisions
1054        (affects truncation)
1055      seaice_do_ridging.F: clean up the insectarium
1056      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1057      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1058      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1059      - add some debugging information and error messages (warnings)
1060    o model/src: modifications relatd to atmosphere p*:
1061      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1062      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1063        of vertical profile tRef in geopotential background and anomaly.
1064      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1065        and pkg/atm_phys.
1066      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1067        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1068    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1069    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1070        not used right now, but can be used in BGC packages to fix conservation.
1071    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1072        other packages too.
1073    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1074        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1075    o model/src:
1076      - since we have several heat capacity (even in model/src), define "recip_Cp"
1077        as local variable (no longer in common block) to avoid any confusion.
1078      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1079    o pkg/exf:
1080      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1081        air density as function of air Temp, Humidity and atm pressure.
1082    
1083    checkpoint64w (2014/05/02)
1084    o verification:
1085      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1086        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1087        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1088        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1089        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1090    o model/src: for atmosphere in p* coords:
1091      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1092      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1093        but not yet activated.
1094    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1095      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1096      - this changes the results (but not for any verification experiment, because
1097        none tests this), but avoids having an extra field in the restart files
1098    o pkg/seaice: remove global variable TICE (not needed)
1099      - replace by TICES or local variable where necessary (cost_seaice_test,
1100        seaice_diagnostics_state)
1101      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1102      - use specific read/write routines for reading and writing individual leves
1103        of a multilevel field
1104    o pkg/ctrl & model/inc:
1105      - move additional anomaly fields of control vars (related to options:
1106         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1107        from DYNVARS.h into new header file: CTRL_FIELDS.h
1108    o pkg/seaice: some small modifications to the ridging code
1109      - make fw2ObyRidge a global variable and add the freshwater flux to
1110        seaice_growth
1111      - pass actual thickness from seaice_prepare_ridging, so that it is
1112        computed only in one place and compute it in the same way as in
1113        seaice_growth
1114      - initialise more fields in seaice_do_ridging that where cause floating
1115        point exceptions over land
1116    o pkg/seaice: preparations for ridging code and first real ridging code
1117      - move most of "PART 1" of S/R seaice_growth into a new and separate
1118        S/R seaice_reg_ridge that will both regularize the state variable after
1119        advection call the actual ridging routine;
1120      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1121        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1122      - remove ridging code from seaice_advdiff
1123      - clean up remaining part 1 of seaice_growth in an attempt to make it
1124        more readable (this is probably subjective)
1125      - call seaice_itd_redist once in the initialisation phase to have the initial
1126        conditions in the correct category
1127      - finally: add new ridging routine for ITD code
1128    
1129    checkpoint64v (2014/04/11)
1130    o pkg/ecco:
1131      - add runtime parameters mdt[start,end]date[1,2]
1132      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1133    o pkg/seaice:
1134      - make deltaC a global variable, so that it can be used in ridging code
1135      - first step towards ridging: introduce new routines that compute
1136        ice strength based on ridging parameters
1137      - add diagnostic for HSNOWITD
1138      - add opnWtrFrac as a global variable (required for ridging scheme)
1139    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1140      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1141        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1142    o verification/hs94.1x64x5:
1143      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1144      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1145    o autodiff:
1146      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1147        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1148        For now, only in pkgs used in verification/hs94.1x64x5.
1149      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1150        which are specific to TAF/TAMC).
1151      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1152        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1153        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1154      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1155        building mitgcmuv_ad (make adAll).
1156    o pkg/ecco:
1157      - cost_gencost_seaicev4.F:
1158         reformulate proxy cost as function of sst and local param SEAICE_freeze
1159         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1160      - add stop statement if old names siv4-[sst,vol] are used
1161      - add snapshots + cost reports for atmospheric longwave
1162      - remove factor 0.1 in front of wtau[u,v]
1163      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1164         ALLOW_TMI_SST_COST_CONTRIBUTION
1165    o pkg/atm_phys:
1166      - add some diagnostics for Short-wave and for convection S/R.
1167    o pkg/seaice/seaice_growth:
1168      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1169        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1170      - rearrange loop order for better vector code in the same code block
1171      - rewrite the floeDiameter formula to have fewer divisions
1172      -  (miraculously) none of this changes the results of seaice_itd
1173    o pkg/smooth:
1174      - move param smooth2Ddiffnbt to pkg/ecco
1175    o pkg/salt_plume:
1176      - salt_plume_frac.F:
1177         clean up local param names
1178         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1179    o pkg/rw:
1180      - add RS version of S/R READ_MFLDS_LEV.
1181    o pkg/streamice:
1182      - fix the restart test by writing/reading pickup_streamice files.
1183    o pkg/seaice:
1184      - refine checks for jfnk-related parameters
1185      - comment out if statement with SEAICEuseIMEX parameter as long as there
1186        is no IMEX code to avoid confusion and surprises
1187    
1188    checkpoint64u (2014/03/07)
1189    o verification/MLAdjust:
1190      - rename secondary test suffix:
1191         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1192         0.leithD -> AhFlxF  + switch to flux-form
1193         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1194         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1195    o pkg/mom_vecinv:
1196      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1197        to be before mom_calc_visc.F)
1198      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1199      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1200        this is simpler for the adjoint and for diagnostics.
1201    o model/src + pkg/momentum:
1202      - add input files for  2-D additional Western and Southern cell-edge wall
1203         (e.g., to add "thin-wall" where it is =1).
1204      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1205        using 2nd hFacZ that is computed from initial (fix domain) hFac
1206      - known limitations of thin wall implementation: not yet coded for sigma
1207        coords; not working with CD-scheme neither.
1208    o pkg/seaice:
1209      - rename recently introduced parameters from (wrong name) AB to
1210        BDF (backward difference time discretisation)
1211      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1212    o tools/adjoint_options:
1213      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1214    
1215    checkpoint64t (2014/02/01)
1216    o pkg/ecco
1217      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1218        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1219      - replace hard-coded record number and period which only work for monthly
1220        with read-in runtime param that works for other periods (month,day,year)
1221    o pkg/thsice
1222      - corrected store directive fixes thsice adjoint gradient checks
1223    o genmake2 & testreport:
1224      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1225        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1226        Update testreport accordingly. No need to set "export OPENAD=true"
1227        in adjoint_options/adjoint_oad anymore (will be removed later).
1228    o pkg/shelfice:
1229      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1230        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1231        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1232    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1233      - Changes to make GENARR more modular (i.e. invisible if not used)
1234    o model/src/temp_integrate.F and salt_integrate.F
1235      - re-include store directives that were removed on Dec 27th.
1236    o model/src/external_forcing_surf.F
1237      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1238        seaice_model in the adjoint that is problematic when seaice_model is
1239        turned off in the adjoint. The resolved issue dated back to July when
1240        EXTERNAL_FORCING_SURF call was moved.
1241        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1242    o pkg/exf/exf_check.F
1243      - fix a small bug again (originally found by Wentao Liu, now found again)
1244      - streamline error output
1245    o pkg/streamice and aim_v23:
1246      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1247        Apple's /usr/bin/cpp knows what to do:
1248        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1249        Target: x86_64-apple-darwin13.0.0
1250    
1251    checkpoint64s (2014/01/05)
1252    o tools/adjoint_options:
1253      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1254        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1255    o model/src:
1256      - remove some unnecessary TAF storage directives in forward_step.F and
1257        in dynamics.F (note: not always removed by TAF, e.g., double storage
1258        of kappaRU,kappaRV in former version of dynamics.F).
1259    o model/src & pkg/ptracers:
1260      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1261        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1262        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1263      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1264      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1265      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1266    o useSingleCpuInput separates single-CPU input from single-CPU output;
1267        for now only implemented for in exf_interp_read.F
1268    o verification/advect_xy:
1269      - fix missing EXCH call in local version of ini_salt.F and update output.
1270    o momentum diagnostics:
1271      - fix which deltaT is used in Total-Tendency diagnostics.
1272      - fix typo in diagnostics for momentum tendency from AB.
1273    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1274        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1275    
1276    checkpoint64r (2013/12/08)
1277    o verification/*/results:
1278      - Update reference output of experiments that were passing with just 13 digits
1279         (make it easier to detect future changes in results)
1280    o model/src & pkg/ptracers:
1281      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1282        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1283        to inside ptracers_integrate.F ; remove ptracers_advection.F
1284    o coupling interface pkgs:
1285        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1286      - change the config check to test the agreement of Ocean Depth
1287        with ATM land/sea mask (instead of ATM orography);
1288      - send to coupler the number of coupler time-steps to do for this run:
1289        this allows to check for consistency and don't need anymore to be
1290        specified in parameter file "data";
1291      in coupler:
1292      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1293      - improve report to log-file of config setting (pass log-file unit to few S/R)
1294    o pkg/compon_communic:
1295      - add coupling send/receive for non-tiled integer vector;
1296      - add S/R to check and stop if any proc has an error (similar to
1297        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1298    o pkg/exch2:
1299      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1300        through list of all tiles my proc owns.
1301    o model/src:
1302      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1303        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1304        calling S/R); this affects AD results at machine truncation level:
1305        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1306        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1307    o tools/build_options:
1308      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1309    o coupling interface pkgs:
1310        [compon_communic, atm_compon_interf & ocn_compon_interf]
1311      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1312        to each S/R that needs it; remove un-used variables.
1313      - change component tile registration (cpl_register.F in both compon_interf
1314        and mitcomponent_tile_register.F) to pass the full list of tiles
1315        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1316      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1317        towards coupler global array (unless W2_useE2ioLayOut=F):
1318         a) can now use different tiling between atm & ocn comp.
1319         b) no needs to modify the run-Off map when changing tiling (was needed
1320            even if using the same tiling between atm & ocn).
1321         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1322            full land tiles); not yet tested.
1323      - check for valid mapping from comp. tile to coupler global array
1324      - improve report of tile registration results to log file.
1325    o pkg/exch2:
1326      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1327        tile-registration (CPL_REGISTER);
1328      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1329        store the local bi,bj indices of each tile;
1330      - also print bi,bj in local report to log file;
1331      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1332        Jun 2009 modif of pkg/exch2).
1333    o testing on baudelaire:
1334      - run 2 tests at a time: no significant slow down (since enough cpu) and
1335        get the full set of test done earlier
1336      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1337    o model/src/thermodynamics.F and routines called from it:
1338      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1339        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1340        velocity (outp) by adding bolus velocity.
1341      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1342        mass transport from velocity + lateral grid cell area
1343      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1344      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1345     in thermodynamics.F
1346      - remove k from thermodynamics.F and move it to temp_integrate.F
1347        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1348        loop).
1349      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1350        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1351        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1352        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1353      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1354        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1355        tutorial_tracer_adjsens (+ TLM output).
1356    o tools/OAD_support and (verification/*/) code_oad:
1357      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1358        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1359      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1360        version (closer to model/inc/CPP_OPTIONS.h).
1361    o model/src:
1362      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1363        retired list of parameters (routine FREEZE has been replace by surface
1364        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1365    o pkg/gmredi:
1366      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1367        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1368      - update output of FWD experiments: front_relax.bvp,
1369        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1370    
1371    checkpoint64q (2013/11/17)
1372    o verification:
1373      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1374        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1375      - generate new output (growth & melt) for seaice_itd experiment after
1376        updating the input pickup_seaice files (previously wrong).
1377    o pkg/cost:
1378      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1379        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1380        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1381          cannot be applied to var in common block).
1382        o allows to get results independent of tile-per-proc setting (if using
1383          slower GLOBAL_SUM_SEND_RECV option).
1384      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1385        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1386        forward gradients: update output).
1387      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1388        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1389    o pkg/mom_common:
1390      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1391        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1392        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1393        ensure that all field value that are used are set.
1394    o tutorial_deep_convection (smag3d):
1395      - add missing scaling in mom_calc_smag_3d.F;
1396      - set smag3D_coeff in input.smag3d such that results do not change.
1397    o pkg/dic:
1398      - change dic_cost.F to compute cost on each tile first and then apply
1399        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1400        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1401      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1402    o eesupp/src & pkg/mdsio:
1403      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1404        (from pkg/mdsio) since they are no longer used for tape IO.
1405      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1406        (+ keep a copy in pkg/atm_ocn_coupler).
1407    o verification/isomip:
1408      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1409    o tools/build_options:
1410      - optfile linux_amd64_ifort11, fast (no ieee) case:
1411        to get a working restart for all experiments, add "-fp-model source"
1412        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1413    
1414    checkpoint64p (2013/10/20)
1415    o pkg/autodiff:
1416      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1417        criteria, return to simple (default) tape IO format.
1418    o pkg/mdsio (+ eesupp/src):
1419      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1420        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1421      - fix globalFile and singleCpuIO options using simpler global mapping.
1422      - new pairs of scatter/gather vector S/R (one for each type, generated from
1423        template) corresponding to simpler global mapping.
1424      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1425        to globalFile when parameter globalFiles is set to True.
1426      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1427    o pkg/autodiff:
1428      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1429        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1430        missing, just add a STOP if array type do not match.
1431    o pkg/exf:
1432      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1433         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1434         and rename array obsSIce to exf_iceFraction.
1435    o tutorial_deep_convection:
1436      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1437        for now all in this exp. code dir.
1438      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1439        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1440    o eesupp/src:
1441      - added SINGLE_DISK_IO option because reading of parameter files on
1442        very large number of processors did not work with existing set-up
1443    
1444    checkpoint64o (2013/09/25)
1445    o pkg/atm_phys & atm_compon_interf:
1446      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1447    o tools/build_options:
1448      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1449        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1450        remove CPP setting (was identical to genmake2 default).
1451    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1452      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1453      - fixed up the calculation of the eddy stress and how it is added to the
1454        external forcing via taueddy_external_forcing.F
1455      - at the moment, it is very experimental and only works with the variable eddy
1456        diffusivity calculated in gmredi_k3d.F
1457    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1458        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1459    o testreport (& tools/do_tst_2+2):
1460      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1461    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1462      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1463      - add switch (for big setups) to use 'medium' memory-model (but leave it
1464        commented out for now). Note: needed with FC 19 to compile big setups.
1465    o pkg/atm_compon_interf:
1466      - regroup per field origin (model & pkgs) the coupling storage routines
1467         (which accumalate in time each coupling field)
1468      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1469        update accordingly + simplify aim_do_physics.F
1470    
1471    checkpoint64n (2013/08/26)
1472    o pkg/bbl:
1473      - update formulation to reduce dispersion of tracer properties in bbl
1474      - replaced horizontal and vertical transport parameters with velocities
1475      - changes results for verification/global_with_exf.yearly
1476    o verification/halfpipe_streamice:
1477      - change to matrix construction; update both Fwd & AD output.
1478    o verification/tutorial_tracer_adjsens:
1479      - OpenAD test: switch to vector-invariant momentum since fluxform with
1480        rStar causes problems with OpenAD; update output.
1481    o tools:
1482      - genmake2: define a common prefix for all temp-file names ; move them
1483        to local /tmp disk (but would be easy to move them back);
1484      - xmakedepend: apply the same switch for temp-files.
1485    o pkg/offline:
1486      - changes for use with rStar (NLFS): assume that we continue to provide
1487        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1488        output files) and apply r* scaling at each time-step (function of the time
1489        varying Eta field); use normal pickup files (needed for restart with NLFS).
1490    o adjoint with OpenAD:
1491      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1492        package openad.  This package has to be compiled for all runs with OpenAD
1493        instead of specifying code_oad_all as a modification directory.
1494      - link the fortran templates from tools/OAD_support to the build directory
1495        for preprocessing to avoid conflicts between different setups compiled
1496        simultaneously and simplify cleanup.
1497    o pkg/exf:
1498      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1499        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1500    o model/src:
1501      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1502        (similar to do_fields_blocking_exchanges.F).
1503    o tools/genmake2:
1504      - remove TAF output src code just before calling staf (when not doing a fresh
1505        built, will stop if things go wrong with staf).
1506      - fix target "adobj" (left from TAF version-2 transition)
1507    o pkg/diagnostics:
1508      - add a parameter to track the status of pkg/diagnostics activation;
1509        this replace/extend the use of logical param "settingDiags" (to check
1510        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1511        New S/R to print error message and stop when pkgStatus is not right.
1512      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1513    
1514    checkpoint64m (2013/08/13)
1515    o model/inc:
1516      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1517        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1518    o pkg/kpp & aim_v23:
1519      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1520    o pkg/seaice:
1521      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1522        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1523      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1524    o eesupp/src:
1525      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1526        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1527    o switch to TAF version-2:
1528      - add flow directives to "freeze" naming convention for ad-routines that
1529        are used in I/O routines of adjoint state and associated common blocks
1530        that are used in adcommon.h (backward compatible with version-1)
1531      - update all ad-optfiles (in tools/adjoint_options + few local to some
1532        verification exp) to switch to latest TAF version (currently 2.5.5);
1533        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1534        out except for diva).
1535      - the major change with TAF version-2 is that both the differentiated
1536        routines and the forward routines (new) are returned as part of the TAF
1537        output source code. Update genmake2 accordingly.
1538      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1539        with version-2 when compared to TLM or FWD gradient); other experiments
1540        output show minor changes (machine truncation level); update the few AD &
1541        TLM output with 12 matching digits only (some prior to version-2 switch).
1542    
1543    checkpoint64l (2013/08/05)
1544    o model/src:
1545      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1546      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1547        when using TAF but only if using OpenAD.
1548    o pkg/mom_common+fluxform+vecinv:
1549      - always set horiz. viscosity arrays to background value before calling
1550        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1551        only when using variable horiz. viscosity (useVariableVisc=T);
1552      - simplify mom_vecinv.F (only 1 block for momViscosity).
1553    o pkg/mom_common: variable horiz. viscosity in NH code
1554      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1555        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1556      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1557        useBiharmonicVisc & useVariableVisc.
1558      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1559        in calc_gw.F, version 1.27, 2006/06/20):
1560        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1561        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1562      - change background horiz viscosity in vertical momentum (gW) to always be
1563        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1564        any type of variable viscosity, e.g., viscAh/4Grid)
1565      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1566        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1567        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1568        default viscAh,viscA4 is zero).
1569    o model/src:
1570      - extend length of drC & recip_drC from Nr to Nr+1.
1571    o Divided Adjoint (DIVA) with MPI:
1572      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1573      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1574        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1575    
1576    checkpoint64k (2013/07/23)
1577    o tools/OAD_support:
1578      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1579        and remove it from genmake2.
1580    o tools/build_options:
1581      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1582        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1583    o verification/halfpipe_streamice:
1584      - change to driving stress formulation; update both Fwd & AD output.
1585    o tools/genmake2 and Divided Adjoint with MPI:
1586      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1587      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1588      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1589        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1590        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1591      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1592    o testreport:
1593      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1594        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1595        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1596    o verification/lab_sea (AD test):
1597      - change to test Divided Adjoint Run in this set-up (both standard AD test
1598        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1599    o pkg atm_ & ocn_compon_interf:
1600      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1601        staggerTimeStep implementation) and disable (retired) corresponding
1602        parameter.
1603    o pkg/offline:
1604      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1605      - add S/R OFFLINE_CHECK to print offline parameter summary
1606        and stop if loading a file that is not used;
1607      - enable to calculate GMRedi tensor, KPP mixing and convective index
1608        when the corresponding file(s) is/are not specified (but pkg is used).
1609      - comment out resetting of monitorFreq (to endTime) since it still useful
1610        for monitoring CFL numbers and checking offline fields.
1611    o OpenAD:
1612      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1613        smaller standard output) and generate new (smaller) output (on baudelaire
1614        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1615    o model/src:
1616      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1617        (where external_forcing_adjust was called) and change list of arguments;
1618      - merge external_forcing_adjust.F into external_forcing_surf.F
1619      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1620        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1621        previously in file "balance_relax.F", now removed); remove corresponding
1622        arrays in FFIELDS.h.
1623      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1624        a hack for getting back surfaceForcingS (loaded from file) when using
1625        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1626      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1627        (was getting only 11 digits for AD-grad, due to different truncation
1628         error in AD code).
1629    
1630    checkpoint64j (2013/07/04)
1631    o pkg/offline:
1632      - to enable the use of other features with pkg offline (e.g., obcs),
1633        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1634      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1635    o pkg/exf ALLOW_RUNOFTEMP
1636      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1637      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1638      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1639    o pkg/atm_phys:
1640      - allows to add some damping on uVel,vVel (strength only function of k).
1641    o verification, ad-tests:
1642      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1643        global_ocean_ebm and offline_exf_seaice.thsice.
1644    o verification/halfpipe_streamice:
1645      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1646        flux input boundary conditions to be ignored; a fix for this bug changed
1647        verification results for forward test.
1648      - add adjoint test.
1649    o pkg/ptracers:
1650      - allow to restart without SOM pickup (resetting SOM to zero).
1651    o pkg/gmredi:
1652      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1653      - It uses mixing length theory and suppression by steering level effects to
1654        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1655        to JPO, for more details).
1656      - It also uses the diffusivity to calculate an eddy induced streamfunction
1657        based on a PV closure (rather than a buoyancy closure as in GM).
1658      - New files added to pkg/gmredi:
1659        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1660          induced overturning streamfunction (called from gmredi_calc_tensor)
1661        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1662          for use in gmredi_k3d
1663        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1664          the eddy diffusivity
1665    
1666    checkpoint64i (2013/06/18)
1667    o pkg/cheapaml:
1668      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1669        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1670        with pkg/cheapaml.
1671    o utils/python: add subpackage for cubed sphere function, first example is
1672        simple cs.pcol to plot 2D fields on a map
1673    o pkg/streamice:
1674      - This is a new package in MITgcm, which solves dynamic equations for ice
1675         sheets and ice streams
1676      - At the moment it is independent of atmosphere/ocean dynamics, or any
1677        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1678        ed that this will change)
1679      - There is a new verification exercise that tests it, halfpipe_streamice,
1680        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1681        rectangular embayment
1682      - halfpipe_streamice is forward-only for now, will have TAF test soon
1683      - for questions, email dgoldber@mit.edu
1684    o pkg/thsice:
1685      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1686        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1687      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1688         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1689      - allow precip from pkg/cheapaml to make snow over seaice.
1690    o pkg/cfc:
1691      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1692      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1693      - change some hard-coded constant to run time parameter for reading and
1694        and interpolating atmospheric CFC ; keep same default as previously.
1695      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1696      - put arguments in standard order: myTime, myIter, myThid
1697      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1698        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1699      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1700      - new routine to print summary of CFC params and check for consistency.
1701    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1702      similar to thsice_advdiff.
1703      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1704    o pkg/cfc:
1705      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1706        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1707      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1708        hemisphere value.
1709    o pkg/seaice:
1710      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1711    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1712                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1713      - requires an additional time level that is stored in the pickup
1714      - you can start with AB2 from a pickup without this time level with
1715        pickupStrictlyMatch = .false.
1716    
1717    checkpoint64h (2013/05/26)
1718    o pkg/cheapaml:
1719      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1720        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1721      - consistent treatment of uWind,vWind location: assume everywhere in
1722        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1723        (Note: was already the case for Tair,Qair advection);
1724        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1725      - compute diabatic forcing only in the interior (excluding overlap regions)
1726      - fill in array "Qsw" (for short-wave heating);
1727      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1728        before any update (consistent with MITgcm state var diagnostics);
1729      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1730        non periodic ; + adjusted for uWind,vWind (C-grid).
1731    o pkg/seaice:
1732      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1733        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1734      - allows to compile pkg/seaice without pkg/exf.
1735    o tools/OAD_support:
1736      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1737        of array "ourStepOf" in function rvNextAction (revolve.F90).
1738    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1739      - change pkg name (to be used with other atmospheric physics pkg)
1740        but by-pass CVS when making the new pkg so that we keep the CVS history.
1741    o pkg/offline:
1742      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1743        (previously called from pkg/dic_surfforcing_init.F)
1744    o model/src:
1745      - re-order sequence of calls within packages_init_variables.F, using
1746        standard order, except for:
1747         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1748         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1749    o new pkg: atm_phys
1750      - add entry point and source code (previously in contrib
1751          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1752        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1753      - re-order sequence of calls within packages_readparms.F,
1754         packages_init_fixed.F and packages_write_pickup.F
1755        (but skip packages_init_variables.F because of TAF issues).
1756      - update contrib/*/atm_gray/ experiment.
1757    o pkg/seaice (ITD code):
1758      - simplify and fix the writing of pickup-files for ITD case
1759    o pkg/seaice (ITD code):
1760      - introduce floe size dependent lateral melt for ITD case;
1761      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1762      - update seaice_itd experiment main output.
1763    o pkg/thsice:
1764      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1765        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1766        changed accordingly pkg/atm2d.
1767    
1768    checkpoint64g (2013/05/01)
1769    o pkg/exf ALLOW_RUNOFTEMP
1770      - if defined,  river and glacier runoff temperature can be read-in from
1771        runoftempfile; runoftempfile needs to have same format as runofffile
1772    o pkg/thsice (& pkg/bulk_force):
1773      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1774        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1775      - change computation domain to always be the interior (without overlap).
1776      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1777    o verification/tutorial_global_oce_biogeo:
1778      - add preliminary OpenAD setup (still has problems)
1779    o pkg/seaice:
1780      - turn some parameters for choosing the convergence criterion of
1781        the inexact Newton method (JFNK) into runtime parameters for convenience
1782      - clean up seaice_calc_viscosities.F: remove/retire two options for
1783        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1784        the results of lab_sea/input because a division has been replaced by
1785        a multiplication with the reciprocal (sumNorm)
1786      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1787        convergence of solver (changes results, of course), and to test some
1788        new features
1789    o model/src:
1790      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1791      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1792      - move forcing adjustment (balancing surface forcing) in specific S/R
1793        where might also be applied exchanges (if needed) to forcing arrays.
1794    o pkg/shelfice:
1795      - allow to specify the Ice-Shelf mass per unit area (instead of
1796        shelficeLoadAnomaly) and do the conversion from one to the other
1797      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1798        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1799        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1800        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1801      - update isomip experiment forward output (get machine truncation error
1802        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1803    o verification/offline_exf_seaice:
1804      revise data.seaice in input.thermo and input_ad and update results accordingly
1805        HO = 0.2, SEAICE_areaLossFormula = 2,
1806        SEAICE_growMeltByConv = .TRUE.,
1807        SEAICE_doOpenWaterMelt = .TRUE.,
1808      Improve consistency with input.thsice and fix the spurious 500m ice corners
1809    o verification/global_ocean.cs32x15:
1810      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1811        in icedyn (thsice+seaice-dyn) test and update output.
1812    o verification/offline_exf_seaice:
1813      - adjust list of tested variables (with testreport) and update
1814        standard test output with better slection of monitored fields.
1815    o pkg/cd_code:
1816      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1817        experiment lab_sea.hb87
1818    o tools/genmake2:
1819      - change default makedepend from the system default to tools/xmakedepend:
1820        When no makedepend is specified, select tools/xmakedepend it the test pass,
1821        otherwise select the system default (if exist and pass the test) or
1822        try to build cyrus-makedepend ; stop if none of the 3 works.
1823    o pkg/exf & pkg/thsice:
1824      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1825        for energy content of Precip + RunOff & Evap. Assumes:
1826       1) Rain has same temp as Air.
1827       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1828       3) Run-Off comes at the temp of surface water (with same Cp)
1829       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1830        put directly into Latent Heat flux & should use water-vapor heat capacity.
1831       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1832        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1833    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1834        (compile when SEAICE_ALLOW_JFNK is defined)
1835    o pkg/thsice:
1836      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1837        implementation): move THSICE_AVE call after the advection (called directly
1838        from thsice_do_advect.F).
1839    o verification/global_ocean.90x40x15 and OpenAD:
1840      New experiment for OpenAD is identical to the one in input_ad except that
1841        multiDimAdvection=.FALSE.,
1842      There is still an issue with this.
1843    o pkg/thsice:
1844      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1845        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1846        and offline_exf_seaice (main test).
1847    
1848    checkpoint64f (2013/03/31)
1849    o verification/OpenAD:
1850      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1851    o verification/isomip, pkg/shelfice and OpenAD:
1852      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1853    o verification/tutorial_global_oce_biogeo:
1854      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1855    o verification/offline_exf_seaice:
1856      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1857    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1858      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1859    o pkg/seaice/seaice_evp.F:
1860       mask the asymmetric contribution of the ice-ocean stress (when
1861       the turningAngle is non-zero) over open water to avoid stripes
1862       in the EVP-solutions after many EVP-substeps. This does not change
1863       the verification experiment (because turningAngle=0 in that experiment),
1864       but will affect other EVP solutions with turningAngle.ne.0
1865    o verification, AD & TLM output:
1866      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1867        additions and multiplications which affect results at machine truncation
1868        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1869        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1870        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1871        digits of matching.
1872    o pkg/seaice:
1873       modify lsr-algorithm so that it vectorizes AND converges by using a
1874       "zebra" method: split vector loop into two with step size 2; this
1875       solves a general convergence problem for the JFNK solver on a vector
1876       computer. It has the potential to even improve convergence for
1877       non-vector machines, but it does change the results so it is turned
1878       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1879       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1880    
1881    checkpoint64e (2013/03/05)
1882    o pkg/ecco and several verification experiments:
1883       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1884       from ecco package, and revert to unified routine in model/src/
1885       Adjust verification experiments accordingly, especially gloal_oce_llc90
1886       Should conclude long-standing work by Gael to reconsile the_main_loop with
1887       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1888    o pkg/generic_advdiff:
1889      - implement compressible flow method for multi-dim advection (similar to
1890        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1891        TAF generates many recomputations) to use it; no yet coded with implicit
1892        vertical advection.
1893      - change experiment advect_cs (new output) and advect_xy (same output)
1894        to test compressible flow multi-dim advection.
1895    o pkg/generic_advdiff:
1896      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1897        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1898    o pkg/seaice:
1899      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1900        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1901        recover old (wrong) results by setting noSlipFac = 2. in
1902        seaice_calc_strainrates.F;
1903      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1904      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1905        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1906      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1907    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1908      - new subroutines seaice_lsr_tridiagu/v
1909      - introduce loop bounds i/jmin/max to be able to use a restricted
1910        additive Schwarz method, but not used for now.
1911      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1912      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1913    o OpenAD support
1914       Reorganize S/R call for overall time-stepping loop to facilitate
1915       OpenAD revolve loop replacement
1916       (new S/R main_do_loop.F)
1917    o model/src:
1918      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1919      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1920        ADAMS_BASHFORTH2.
1921    o pkg/cheapaml:
1922      - add new parameter (default=F, same as before) to disable full domain
1923        (including land) periodicity in X & Y dir.
1924      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1925        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1926        into single S/R CHEAPAML_TIMESTEP.
1927    
1928    checkpoint64d (2013/02/17)
1929    o pkg/monitor (angular momentum):
1930      - do not add Eta contribution to the total AM if using rigid-lid;
1931      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1932      - horizontal discretisation: compute Zonal wind contribution separately for
1933        each component (instead of from cell centered averaged) and use the 4
1934        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1935      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1936        FreeSurf) if using vectorInvariant momentum.
1937    o model/src (horizontal grid):
1938      - move initialisation of all horizontal grid arrays to null value
1939        from specific horizontal grid S/R to main S/R INI_GRID;
1940      - add 2 new arrays to project model C-grid velocity on to zonal direction
1941        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1942        compute them in S/R CALC_GRID_ANGLES.
1943    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1944        SEAICE_JFNK_tolIter
1945    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1946        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1947        i.e OLx/y-2, but overwrite the solution in the overlaps)
1948      - extend loop range in seaice_calc_viscosity
1949      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1950      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1951      - slightly modify loops in tridiagonal solver lsr-preconditioner
1952      - by default remove the extra exchange in seaice_preconditioner with a
1953        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1954      - modify offline_exf_seaice so that old results without RAS are reproduced
1955        for output.dyn_jfnk.txt
1956      in seaice_fgmres.F (unrelated to RAS)
1957      - add a cpp-flag option for a re-ordered mapping (potentially more
1958        efficient), but because this changes the results, turn it off by
1959        default
1960      - replace the save statement by local common blocks
1961    o utils/matlab:
1962      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1963      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1964        instead of local script "load_cs.m".
1965    o pkg/seaice:
1966      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1967        to the scalarProductMetric and the unrolling. By chance this does not
1968        change the verification experiment, because of the particular domain
1969        decomposition
1970    o pkg/diagnostics:
1971      - change default missing_value from UNSET_RL to -999.
1972    o pkg/layers: improve vectorization of layers_fluxcalc.F
1973      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1974        time spent in this routine by more than a factor of 3 on an NEC-SX8
1975      - step 2: replace search algorithm by a bisection algorithm found in
1976        Press et al. Numerical Recipes in Fortran. This algorithm can be
1977        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1978        For now, use this algorithm only for TARGET_NEC_SX defined.
1979      - moved the search algorithm into a separate subroutine, that is kept
1980        within the same file for automatic inlining.
1981      - modified catching potential errors
1982    o pkg/ecco:
1983      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1984    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1985      - modifications for ALLOW_GENTIM2D_CONTROL
1986      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1987      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1988      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1989      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1990    o model/src:
1991      - account for moist thermodynamics in (dry) potential temperature equation;
1992        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1993        and cpl_aim+ocn.
1994      - also switch to standard compiler (gfortran, was using ifort previously)
1995        for fizhi-cs experiments reference output.
1996    o pkg/ctrl:
1997      - 1st step toward generic time-varying control variable (2D) via CPP option
1998        ALLOW_GENTIM2D_CONTROL
1999      - note new namelist ctrl_nml_genarr in data.ctrl
2000    o verification/global_ocean.cs32x15:
2001      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
2002        thsice calling sequence and update "output.icedyn.txt" output file.
2003    o pkg/ptracers:
2004      - from Ryan A.: code to allow to restart a tracer at regular time interval
2005        specifying a reset frequency and a reset-phase (for each tracers).
2006    o pkg/thsice:
2007      - implement new sequence of calls for thsice+seaice:
2008          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
2009          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
2010      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
2011        in CPP_OPTIONS.h) to recover old sequence;
2012      - update diagnostics for Intermediate State thsice diagnostics: now filled
2013        just before advection (instead of just after advection in old sequence);
2014      - update output of experiment offline_exf_seaice (standard test);
2015      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
2016        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
2017    o pkg/aim_v23:
2018      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
2019      - use standard pkg/mdsio routines to read & write CO2 pickup file;
2020      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
2021      - Implement new sequence of calls for seaice advection (with thsice and
2022        seaice diffusion): do ice advection after ice-Thermodynamic (previously
2023        was done before); change aim_do_physics.F (split the bi,bj loops block);
2024      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
2025    o pkg/thsice:
2026      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
2027        where just seaice diffusion is used without seaice-dynamics.
2028    
2029    checkpoint64c (2013/01/18)
2030    o pkg/seaice:
2031      - add a parameter JFNKres_tFac that can replace JFNKres_t
2032        (= JFNKres_tFac*JFNKresidual before JFNK solver)
2033      - add a line search option to the JFNK solver
2034      - move update of u/vIce and computation of initial residual into a separate
2035        routine (same file); makes the code a little easier to read (?)
2036      - the line search requires computation of the residual and for some reason
2037        I cannot do the update of u/vIce at the beginning of the Newton loop
2038        without changing the results, so we move computation of the new residual
2039        also to the end of the Newton loop, even without the line search
2040    o pkg/mdsio:
2041      - write missing value (corresponding to undefined array value) to meta files;
2042        skip this if missing value is one (UNSET_RL would be a better value for the
2043        case of undefined missing value but it's current the default missing-value);
2044        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
2045    o pkg/exf & thsice:
2046      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
2047        diagnostics) even when SHORTWAVE_HEATING is #undef;
2048    o verification/cfc_example:
2049      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
2050        illustrate how to use it).
2051    o verification/offline_exf_seaice:
2052      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
2053        files to only one time-record.
2054      in input.thermo: narrow the 2 bands of low initial ice-concentration near
2055        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
2056        snapshot output; same mcPheePiston value as in thsice with
2057        surf-current=0.2m/s.
2058      in input.thsice: similar set-up as in input.thermo (channel with same seaice
2059        initial conditions).
2060    o verification/cfc_example:
2061      - update file "data" with more standard choice (default rotationPeriod,
2062        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
2063        set deltaTFreeSurf to deltaTtracer) and update the output.
2064    o pkg/layers:
2065      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
2066      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
2067    o verification/offline_exf_seaice:
2068      - set all {field}period to zero for constant-in-time forcing (not tested
2069        anywhere else).
2070    o verification/offline_exf_seaice:
2071      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
2072      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
2073    o model/src:
2074      - implement Finite-Volume method for (hydrostatic) presure gradient
2075        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
2076    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
2077      - In order to be compatible with the default EVP code, this requires changing
2078        the EVP code around a little; and because any small change immediately
2079        breaks the lab_sea.hb87 verification experiment, the reference output is
2080        updated two times (each time the remaining aggrement was only 2 digits):
2081        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
2082        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
2083        The adjoint test lab_sea.evp also needed to be updated.
2084      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
2085        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
2086        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
2087        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
2088        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
2089        kept obscure, because I need to test it a little more.
2090    o pkg/cheapaml:
2091      - fix few incorrect type (_RL/_RS) in subroutine calls.
2092    o pkg/seaice:
2093      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
2094        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
2095    o model/src:
2096      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
2097        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
2098        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
2099    o pkg/cheapaml:
2100      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
2101        update output of experiment cheapAML_box.
2102      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
2103        and set them only in one place (cheapaml_readparms.F).
2104      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
2105      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
2106        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
2107    o model/src/the_main_loop.F:
2108      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
2109    o pkg/seaice:
2110      - remove legacy branch code.
2111      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
2112    o verification/*/code*/SEAICE_OPTIONS.h:
2113      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
2114        SEAICE_CAP_HEFF).
2115    o pkg/cheapaml:
2116      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
2117        to load new forcing fields.
2118      - add missing "_d 0" where it's needed; + some editing (improve indentation).
2119      - remove switch to "-r8" compiler option (no longer needed) in verification
2120        cheapAML_box, keep same output (small trucation error differences).
2121    o verification/offline_exf_seaice:
2122      - add thermodynamics only test.
2123    o verification/cheapAML_box:
2124      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
2125        keep same output (same 14 digits for cg2d).
2126      - switch on "-r8" compiler option (some numerical values are missing
2127        the "_d 0") and update output (only 6 digits for cg2d were preserved).
2128    
2129    checkpoint64b (2012/12/24)
2130    o pkg/cheapaml:
2131      - remove un-used variables (Qnet,EmPmR) from pickup files.
2132      - store tendency of advected variables into cheapaml pickup file
2133        and fix the AB-2 restart.
2134    o verification/offline_exf_seaice and lab_sea adjoint:
2135      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
2136      - switch to 4 time steps in offline, consistent with lab_sea.
2137      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
2138      - update results after change of experiment seaice.
2139    o pkg/seaice:
2140      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
2141        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
2142        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
2143        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
2144    o model/src:
2145      - add run-time parameter to select CG2D solver minimum-residual solution
2146        (in case of a poor convergence).
2147    o pkg/seaice/seaice_lsr.F
2148      - move calculation of matrix coefficients into new
2149        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
2150        file; the main purpose of this change is to be able to reuse the code
2151        in S/R SEAICE_PRECONDITIONER
2152      - modify the computation of the residual so that the mass of sea-ice
2153        is not used twice; this simplifies the calculations, but since
2154        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
2155        not tested in testreport---this does not affect the testreport results.
2156    o verification/seaice_obcs:
2157      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
2158        verification/lab_sea/input.salt_plume; changes results/output.txt*
2159    o model/src:
2160      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
2161    o pkg/seaice:
2162      - improve description of parameters in seaice_fgmres.F and start
2163        cleaning up the code
2164      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
2165        second argument
2166      - add a metric based on grid cell area to SEAICE_SCALPROD; update
2167        results of offline_exf_seaice.dyn_jfnk
2168      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
2169    o pkg/aim_v23:
2170      - fix an other bug in dissipation heating (grid-cell area was missing).
2171    o model/src + pkg/seaice:
2172      - add global (multi-tile) linear solver for pair of tri-diagonal system
2173        along X and Y lines, respectively for U and V component.
2174        Note: 1) MPI and cube-exchange not yet coded.
2175            2) probably not accurate for poorly conditioned / large size problem.
2176      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
2177        default: not compiled and not used.
2178    o pkg/seaice:
2179      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
2180        introduce bi/bj loops and use global_sum_tile_rl instead of
2181        mpi_allreduce in seaice_fgmres.F
2182      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
2183      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
2184      - add a verification experiment for JFNK in offline_exf_seaice
2185    o verification:
2186      - change (for now, only fwd test) offline_exf_seaice experiment:
2187        use a re-entrant channel with idealized coastline (trapezoidal shape)
2188        at southern boundary to explore seaice dynamics and thermodynamics
2189        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
2190        secondary test (input.thsice) use thermodynamics only with SST relaxation.
2191      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
2192    o pkg/exf:
2193      - disable "sstExtrapol" when Nr=1
2194    o verification:
2195      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
2196        to test pkg/cheapaml.
2197    o pkg/aim_v23 & pkg/shap_filt:
2198      - fix dissipation heating (erroneous gravity multiplication factor).
2199    o pkg/seaice:
2200      - remove unused field pressPre from jfnk solver
2201      - rename two subroutines in seaice_preconditioner.F
2202    o eesupp/src:
2203       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
2204    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
2205       - remove wrong parts of the rhs and the lhs (were in there
2206         because I did not understand the concept of this preconditioner)
2207       - add an exchange between u- and v-sweep. This increases communication
2208         by a factor of two but improves the convergence of jfnk. Ideally,
2209         one would like the u- and v-sweep to be independent. So far within
2210         undocumented ifdefs
2211       - reorganize the extra computations for printing the residuals
2212    o tools/genmake2:
2213      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
2214        since it's not necessary (and was preventing to use MNC in some cases).
2215    
2216    checkpoint64a (2012/11/16)
2217    o pkg/autodiff:
2218      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
2219        autodiff_readparms.F no longer depends on calling order (within
2220        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
2221        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
2222        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
2223    o pkg/obcs:
2224      - adding tidal velocity forcing capability to obcs
2225        for usage example, see verification/seaice_obcs/input.tides
2226    o pkg/seaice:
2227      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
2228        SEAICE_LSRrelaxU/V
2229      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
2230    o pkg/aim_v23:
2231      - implement heating from friction (bottom friction and stratospheric drag).
2232    o pkg/shap_filt:
2233      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
2234        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
2235    o model/src:
2236      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
2237        time-constant addMass field from file (addMassFile);
2238      - support for heating due to friction (and Kinetic Energy dissipation):
2239        add option, run-time switch and 3-D field array + support code ; each pkg
2240        or S/R can add heating contribution (if there is a sink of KE); the sum is
2241        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
2242    o pkg/seaice:
2243      - complete merge of ITD code into seaice_growth.F
2244        from MITgcm_contrib/torge/itd/code/
2245        no verification so far, but Torge Martin tested
2246        "1-D test case and Beaufort set up;
2247        deliver okay results after 1 model year."
2248      - complete merge of SEAICE_SIZE.h into all relevant routines
2249      - move computation of eta at Z-points into calc_viscosities
2250        + introduce global field etaZ
2251        + add different methods for computing etaZ, for now the old
2252          method (simple averages of eta to Z-points) is hardwired
2253        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
2254          seaice_preconditioner
2255      - simplify computations for SEAICE_ZETA_SMOOTHREG
2256      - seaice_preconditioner:
2257        + replace one remaining press by pressLoc (mistake)
2258        + adjust printing of residuals
2259      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
2260        + add (SEAICE.h) and rename some counters (initiliased in
2261          seaice_init_fixed.F)
2262        + add _BEGIN/END_MASTER (myThid)  around print statements
2263        + print total number of iterations and failures over SEAICE_monFreq
2264          interval to STDOUT
2265      - move control over output-messages by fgmres to seaice_jfnk to save
2266        some operations
2267      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
2268        in order to make restarts with sol .ne. zero (fgmres with restarts)
2269        (seaice_jfnk.F, seaice_fgmres.F)
2270      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
2271        a serious convergence problem when open boundaries are involved
2272    o pkg/ggl90: fix computation of control volumes for the case of
2273      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
2274      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
2275    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
2276    o pkg/autodiff
2277      - Add inAdMode switch for SEAICEuseDYNAMICS:
2278        SEAICEuseDYNAMICSinAdMode
2279        (extend logic in ADAUTODIFF_INADMODE_SET)
2280    o pkg/seaice
2281      - Step 1 of merging ice-thickness distribution (ITD) code from
2282        MITgcm_contrib/torge/itd/ (author: Torge Martin)
2283        The code implements concept laid out in Thorndike et al. (1975);
2284        code is enabled via CPP flag SEAICE_ITD
2285        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
2286        code is not complete yet!!
2287      - SEAICE_SIZE.h now included in almost all seaice routines
2288    o verification (using seaice):
2289      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
2290        global_ocean.cs32x15.seaice ; update results.
2291      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
2292      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
2293        offline_exf_seaice (previously compiling B-grid).
2294    o pkg/exf:
2295      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
2296        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
2297        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
2298    o pkg/layers (adjust changes from Sept 19):
2299      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
2300        this allows to remove "layers_maxNum" dimension from all layers arrays.
2301    o pkg/layers (adjust changes from Sept 19):
2302      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
2303      - snap-shot extended to all type of layers (not just the 1rst type);
2304      - remove layers variables when corresponding CPP option is undef.
2305    o pkg/layers:
2306      - rename pkg/layers variable and add new output (layer exist & un-weighted
2307        velocity in layer)
2308    o pkg/seaice:
2309      - simplify (?) ocean-drag coefficent computations by using
2310        the same routine in all three solvers (saves some code lines)
2311      - remove global fields DRAGA and DRAGS from C-grid code and
2312        declare them locally in lsr.F (the only place where they are
2313        still used)
2314      - update AD output of lab_sea.evp (very sensitive anyway).
2315    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
2316      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
2317      and SEAICEuseJFNK=.true. A few things to note:
2318      - involves a FGMRES, that is parallel but very inefficient,
2319        because of many scalar products (global sums) in the Gram-Schmidt
2320        orthogonalization method. Needs to be replaced. Original code
2321        from J.-F. Lemieux
2322      - preconditioner for FGMRES is a stripped down version of LSOR
2323      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
2324        preconditioner. For the preconditioner, the default is set to 10.
2325      - Jacobian times vector is computed with finite differences
2326      - marginally related to JFNK-solver: add a smooth regularization for
2327        zeta with tanh that will improve convergence (Lemieux and Tremblay,
2328        2009) for any implicit solver (not implemented for EVP because EVP
2329        does not need this regularization in the first place). Define
2330        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
2331    o eesupp/src:
2332      - check in genmake2 that intrinsic S/R flush is available.
2333      - add S/R to flush IO unit (if intrinsic S/R flush is available)
2334      - flush standard & error msg unit before MPI termination
2335      - if debugMode, flush IO unit after printing msg
2336    o pkg/ctrl:
2337      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
2338        to ctrl_set_unpack_xyz.
2339    
2340    checkpoint64 (2012/10/09)
2341    o pkg/shelfice
2342      - in mom_fluxform.F, mom_vecinv.F:
2343        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
2344        Bug fix KappaRU -> KappaRV
2345        does not change verification/isomip but may change other setups
2346        (presumably constant KappaRU=KappaRV)
2347      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
2348    o pkg/obcs:
2349      - fixed some indexing bugs in obcs_seaice_sponge.F
2350      - added obcs relaxation subroutines for HSALT and HSNOW
2351      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
2352    o pkg/seaice:
2353      - add "multicategory" parameterization for snow in analogy to ice,
2354        default is off for now.
2355    o pkg/obcs:
2356      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
2357        see verification/seaice_obcs/input.seaiceSponge for example application.
2358      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
2359        index setting by master-thread. This fix multi-threads Pb in previous modifs.
2360    o pkg/layers :
2361      - add diagnostics to pkg/layers
2362      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
2363        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
2364    o pkg/generic_advdiff/gad_implicit_r.F :
2365      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
2366    o pkg/seaice/seaice_growth.F:
2367      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
2368    o pkg/obcs:
2369      - change default setting of OBCS_UVICE_OLD from defined to undef;
2370      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
2371        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
2372      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
2373      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
2374        with Southern & Western OB at a tile edge (at least in a simple set-up).
2375    o pkg/obcs:
2376      - change settings of OB index in case OB coincides with tile edge (shared by
2377        2 tiles), so that common OB location is registered by both tiles (instead of
2378        only 1). However, for Southern and Western OB, index value = 0 is not
2379        recognized as valid OB index (=default null value) and needs to be fixed.
2380      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
2381      - new parameter "OB_indexNone" for null index value (for now, still zero)
2382        to replace hard-coded null index value of zero.
2383    o pkg/exch2:
2384      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
2385        always check buffer-size (but outside the loop); move checking for valid
2386        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
2387        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
2388    o pkg/ctrl (pack & unpack):
2389      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
2390        (locally defined) for different variables (+ remove the variable-specific
2391        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
2392        (to be extended to other local file names in ctrl.h).
2393    o pkg/flt:
2394      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
2395    o pkg/mdsio:
2396      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
2397    o tools/genmake2:
2398      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
2399        (added by Alistair in version 1.51 for building without make depend);
2400      - remove Header files list (H_SRC_FILES) from the dependence of targets
2401         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
2402        place in version 1.23): this save going through staf when unrelated header
2403        file has been modified.
2404       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
2405        "make depend" step, still need to do "make links" before "make adtaf".
2406    o eesupp/src (+ few pkg src files) & genmake2:
2407      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
2408      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
2409      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
2410         upper/lower case ; account for space between "#" and undef/define)
2411    o pkg/flt (with exch2):
2412      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
2413      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
2414    
2415    checkpoint63s (2012/09/05)
2416    o pkg/ecco:
2417      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2418      - add more relevant #ifdef ALLOW_SMOOTH ones.
2419      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2420    o pkg/ctrl:
2421      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2422        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2423      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2424        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2425        ctrlSmoothCorrel3D (new).
2426        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2427      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2428      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2429        controls when useAtmWind, and vice versa.
2430      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2431      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2432          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2433      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2434          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2435      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2436        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2437    o pkg/smooth:
2438      - remove un-necessary includes.
2439      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2440        Those CPP options were never defined, and not necessary.
2441    o model/src:
2442      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2443      - standard treatment of useSMOOTH.
2444    o pkg/autodiff:
2445      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2446        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2447    o pkg/exch2:
2448      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2449        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2450      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2451        and tiles to process mapping.
2452      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2453        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2454        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2455        from w2_eeboot.F to w2_readparms.F.
2456    o eesupp/src:
2457      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2458        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2459        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2460      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2461        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2462        has been called.
2463      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2464      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2465        (so that on 1 proc, get same myPid independently of usingMPI)
2466      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2467        useCubedSphereExchange with EXCH-1 (safer).
2468      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2469    o pkg/ggl90:
2470      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2471        used in ALLOW_GGL90_SMOOTH code.
2472    o pkg/flt:
2473      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2474        floats at the Southern end of the domain).
2475    o eesupp/inc:
2476      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2477        but not used (and not to be used) anywhere, just for documentation.
2478    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2479      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2480        a) can damage previously written records in any other multi-record files.
2481        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2482    o tools/genmake2:
2483      - define variable MAKE within Makefile and use it in place of 'make';
2484      - update AD_CONFIG.h (if needed) before building any of the executable
2485        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2486        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2487      - always print usual warning comment 'this file is automatically generated'
2488        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2489    o pkg/cheapaml:
2490      - updated to correspond to the code used in accepted paper (Nico Wienders).
2491    o pkg/exf:
2492        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2493        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2494        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2495    o pkg/exf, autodiff, ctrl, ecco and seaice:
2496        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2497    o pkg/ctrl, ecco:
2498        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2499        Depending on useAtmWind, one is inactive, and the other is active (see
2500        exf_getffields.F/exf_getsurfacefluxes.F).
2501    o tools/genmake2:
2502      - improve error msg when failing in 2nd test of check_for_broken_Ff
2503      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2504      - source local config file "genmake_local" just after processing the genmake2
2505        command arguments (previously done before processing arg).
2506    o pkg/grdchk:
2507      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2508        to this routine from cost_final has been dropped in g_cost_final)
2509      - improve printed information (more explicit msg, no longer using "print *,"
2510         fix fcpertminus printed value).
2511    o model/src:
2512      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2513        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2514        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2515    o pkg/dic:
2516      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2517        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2518    o pkg/grdchk:
2519      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2520      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2521    o pkg/autodiff/ctrl/grdchk :
2522      - attempt to sort out what works and what does not,
2523        with regard to I/O, and to warn/stop accordingly.
2524    o pkg/grdchk:
2525      - attempt to fix grdchk in the case of useSingleCpuIO.
2526      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2527       statements were moved from grdchk_main.F and into
2528       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2529      - a global sum is applied to record numbers icvrec/layer
2530       out of grdchk_loc so that they be passed to I/O routines.
2531    o pkg/smooth:
2532      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2533        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2534    o verification/testreport:
2535      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2536      - can also use compressed (gzip) reference output file;
2537      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2538        to be easier to collect by testreport.
2539      - update existing TLM output (half out-of-date by more than 3 yrs).
2540      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2541      - report run-time in each individual summary (previously only for AD test);
2542        for TLM test, add also TAF version.
2543      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2544    
2545    checkpoint63r (2012/08/15)
2546    o tools/genmake2:
2547      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2548    o pkg/ecco/ecco_cost_final.F :
2549      - fix fc print statements (to stdout and costfunction0000) so
2550        that the printed value is always after the global sum.
2551    o pkg/seaice/seaice_dynsolver.F :
2552      - fix ice strength assymptote at SEAICE_area_max<1
2553        (no change for the standard case of SEAICE_area_max=1)
2554    o some cleaning:
2555      - pkg source files: ensure that all *.F files from each pkg included the
2556        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2557        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2558        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2559        includes;
2560      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2561      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2562        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2563        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2564      - update option-file CPP_OPTIONS.h of all AD experiments:
2565        * no longer include PACKAGES_CONFIG.h ;
2566        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2567        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2568          including ECCO_CPPOPTIONS.h).
2569    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2570      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2571        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2572        not necessary accurate).
2573      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2574        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2575        deliberately break compilation (a remainder that it needs to be customized)
2576      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2577      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2578      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2579    o tools/genamke2:
2580      - check for lapack.
2581    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2582      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2583        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2584        from both packages.
2585      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2586      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2587      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2588        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2589    o pkg/cost : add comments to explain special and/or untested setups.
2590    o pkg/exf:
2591      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2592        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2593    o verification/*/code_ad:
2594      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2595      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2596      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2597        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2598    o pkg/seaice :
2599      - added possibility to change ice strength/PRESS0 relationship to
2600        HEFF, according to the following run time parameters
2601        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2602        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2603        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2604    o pkg/ggl90 :
2605      - added run time flag mxlSurfFlag to include the code that ensure
2606        mixing between first and second level (previously included as a comment)
2607    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2608      - add test of newly added dumpAdByRec=T option where
2609        we write all records to one file per variable.
2610    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2611      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2612        to check that this code is ok with taf and compiles in adjoint.
2613    o pkg/autodiff :
2614      - added run time param dumpAdByRec : ad dump format switch.
2615        If true then write all records to one file per variable.
2616        Else write one file per record (remains the default).
2617      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2618    o pkg/seaice:
2619     - Added SEAICEuseTILT run time switch : if set to
2620       false then omit the tilt term in seaice dynamics.
2621     - Fix free drift calculation.
2622    o pkg/shelfice:
2623      When initializing SHELFICEDragQuadratic, set default to be
2624      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2625      but retain option to set it independently
2626      (inconsistenty spotted by Veronique Dansereau)
2627    o eesupp/inc:
2628      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2629         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2630    o model/src:
2631      - move balancing of relaxation terms to new S/R balance_relax.F.
2632    o pkg/autodiff:
2633      re-write active I/O high-level (control) S/R:
2634      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2635      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2636      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2637        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2638      - update and merge active_file_control_slice.flow into active_file_control.flow
2639      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2640        active_file_ad.F) keeping the argument list and function unchanged.
2641      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2642        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2643      - new low-level active I/O routines, one for each type (RL/RS), for active var
2644        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2645        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2646        right type.
2647    o autodiff and RS=real*4:
2648      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2649        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2650      - change argument type of 3-D mask argument to _RS to match type in the call
2651        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2652    o pkg/thsice:
2653      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2654      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2655        fresh-water flux: uniform correction or proportional to local precip.
2656    o pkg/ctrl:
2657      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2658      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2659                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2660      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2661    
2662    checkpoint63q (2012/07/30)
2663    o pkg/autodiff:
2664      note about monitor and snap-shot of ad-variables:
2665      a) need to apply ADEXCH before monitor or output of ad-vars to include
2666       overlap contributions (was done for adjDump but missing for monitor).
2667      b) since ADEXCH implies adding overlap values to interior array, machine
2668       truncation error is expected when adding an ADEXCH call in the middle of
2669       the time-stepping (although mathematically identical).
2670      modifs:
2671      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2672        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2673      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2674        apply ADEXCH before monitor or snap-shot of ad-variables:
2675           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2676      - implement new method (copy+adexch) for snap-shot and monitor of main model
2677        ad-vars (initially not used by default -> output unchanged).
2678      - change default (set to 2) to use new method and update few output_adm.txt
2679        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2680        and both tutorial_tracer_adjsens tests).
2681      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2682        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2683    o pkg/ctrl:
2684      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2685      generic control variables via
2686      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2687      Only required customization should be S/R ctrl_map_ini_genarr.F
2688      (routine in repository contains example)
2689    o pkg/exf:
2690      - fix and refine checking of surface-relaxation setting when using EXF
2691    o verification (adjoint exp):
2692      - reduce length of simulation by half for experiment global_ocean.cs32x15
2693        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2694    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2695      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2696        of KE that can occur with aggressive optimization
2697      + put quadratic bottom drag calculation in separated loops (only done if
2698        using bottomDragQuadratic)
2699    o model/src: CG2D_NSA
2700      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2701         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2702      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2703         change cg2d residual target to be expressed in Wunits (=> do not normalise
2704         RHS ; this fix global_max Pb with TAF); update output.
2705    o verification/tutorial_tracer_adjsens:
2706       improve parameter consistency (and get rid of warnings):
2707       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2708       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2709       - use staggerTimeStep (for stability) in som81; use default rotation period.
2710    o pkg/exch2:
2711      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2712        reset to 0 = 1 long line in X)
2713    o pkg/mdsio:
2714      - fix reading of dimensions from meta file for large-size domain
2715    o model/src:
2716      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2717      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2718        Cubed-Sphere Exch with CS-corners inside the domain;
2719        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2720        globalArea and to set hasWetCSCorners.
2721      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2722        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2723      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2724        useCDscheme and useCubedSphereExchange).
2725    o pkg/seaice/seaice_growth.F :
2726      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2727        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2728        when the previous code was not correct.
2729      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2730      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2731        that term to QNET (essentially to set the melt/freeze water to 0degC).
2732        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2733    o verification/global_ocean.cs32x15/input.seaice :
2734      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2735      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2736      - update results (output.seaice.txt) accordingly.
2737    o verification/lab_sea/input/data.seaice :
2738      - remove SEAICEheatConsFix, which is now be tested
2739        in global_ocean.cs32x15. The presently coded fix
2740        is only consistent with real fresh water + nlfs.
2741      - update results (output.txt) accordingly.
2742    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2743    o AD_CONFIG.h file:
2744      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2745      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2746        add it explicitly in each fortran src file where it is needed.
2747        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2748        thus introducing potentially wrong dependency; therefore, better to include
2749        it only where it's really needed, and after any other included OPTIONS file
2750        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2751        or ALLOW_TANGENTLINEAR_RUN).
2752    
2753    checkpoint63p (2012/07/06)
2754    o pkg/autodiff:
2755      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2756      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2757        which are now read from new parameter file "data.autodiff" (inAdExact
2758        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2759      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2760      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2761        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2762    o verification/tutorial_tracer_adjsens/
2763      - add extra sub-verification which uses "SOM" advection scheme
2764        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2765          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2766        and in data:
2767          multiDimAdvection=.TRUE.,
2768          tempAdvScheme=81,
2769          saltAdvScheme=81,
2770    o model/src:
2771      - introduce ALLOW_BALANCE_RELAX which allow the removal
2772       of the global mean of relaxation terms by setting
2773       balanceThetaClimRelax and balanceSaltClimRelax
2774      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2775       This case is now treated appropriately in seaice_growth.F
2776    o pkg/seaice:
2777      - do balanceEmPmR and balanceQnet based on the net fluxes
2778        (SItflux) that enter the ocean+ice system rather than QNET
2779        and EMPMR. Works best in real fresh water.
2780      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2781        out of the diagnotics bloc, and stored in global arrays.
2782    
2783    checkpoint63o (2012/06/29)
2784    o vertical mixing schemes:
2785      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2786      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2787        to S/R FIND_RHO_SCALAR
2788      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2789        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2790        affects output (vermix.ggl90) at truncation level.
2791    o testreport:
2792      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2793        (nSx,nSy) for the number of threads (from eedata.mth)
2794    o model/src:
2795      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2796        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2797    o verification/tutorial_tracer_adjsens/
2798      - compile with ALLOW_CG2D_NSA
2799      - run with nonlinFreeSurf=3
2800      - update reference output_adm.txt
2801    o tools/genmake2:
2802      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2803        refine usePROFILES switching off (only when NetCDF is not available).
2804    o verification (atmospheric set-up):
2805      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2806    o pkg/profiles : refine profiles and files handling.
2807    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2808    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2809      - changes to use model/src/the_main_loop.F rather than the ecco version
2810        in ecco type adjoint runs.
2811    o model/src:
2812      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2813      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2814      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2815    o model/src:
2816      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2817        update output of test experiment bottom_ctrl_5x5.
2818    o pkg/generic_advdiff:
2819      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2820        only explicitly).
2821    o verification/bottom_ctrl_5x5/
2822      update reference output (results changed quite some time ago,
2823      not sure when; but new reference results look ok in terms of grdchk)
2824    o verification/1D_ocean_ice_column/
2825      For verification purposes, the exact adjoint rather than an approx.
2826      should be used (e.g., to comare against F.D. or TLM).
2827      removed autodiff_inadmode*_ad.F routines in code_ad/
2828      Update results/ accordingly.
2829    o pkg/cal:
2830      - change cal_getdate.F so that output date is function of input time only
2831        (less ambiguous, not mixed up with input iteration number).
2832      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2833    o pkg/diagnostics:
2834      - implement calendarDumps also for stats-diags
2835      - implement calendarDumps also for snap-shot output (negative freq)
2836      - for now, ignores calendarDumps if non-zero phase-lag.
2837    
2838    checkpoint63n (2012/06/04)
2839    o model/src:
2840      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2841        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2842      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2843        similar to calc_r_star.F); update results of experiment internal_wave and
2844        tutorial_global_oce_in_p (affected @ truncation level).
2845    o pkg/shelfice:
2846      - add parameterisation of advective-diffusive flux into the ice shelf
2847        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2848      - simply eps3/3a computation
2849    o eesupp:
2850     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2851       between tiles, just fill-in edges assuming locally periodic subdomain) and
2852       add corresponding exchange subroutines (EXCH0);
2853     - new CG-solver version (_EX0) for disconnected-tiles special case.
2854    o model/src (CG-solvers):
2855     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2856       (similar final residual output and max-Iter number as with standard version);
2857     - allows to store and use lowest-residual solution (standard & _SR versions);
2858     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2859     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2860    o eesup/src:
2861     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2862       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2863    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2864    
2865    checkpoint63m (2012/04/27)
2866    o pkg/shelfice:
2867     - account for partical cells in surface level below ice-shelf for hydrostatic
2868       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2869    o ad test experiments:
2870     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2871       particular adjoint verification experiment (in verification/*/code_ad/)
2872    o pkg/seaice & pkg/exf:
2873     - Part two of ECCO-CLIVAR code merges.
2874       Completes merge of seaice area relax. code.
2875       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2876       to be set in EXF_OPTIONS.h since this pkg controls its I/O
2877       (and avoids second CPP option in SEAICE_OPTIONS.h)
2878     - change default value of costIceStart & costIceEnd to a valid date.
2879     - add snowPrecip to HSNOW in seaice_growth
2880    o pkg/ptracers:
2881     - move ptracers summary and setup check into separated S/R ; add a check for
2882       valid PTRACERS_Iter0 value (error+stop or just warning).
2883    o pkg/cal (+ pkg/ecco):
2884     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
2885       as input; and for AD, unless both are not differentiable (e.g., k index)).
2886    o model/src:
2887     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
2888       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
2889       temporary set to usingZCoords value (to be changed to F when using shelfice).
2890     - hydrostatic pressure: implement partial cell near the surface also for
2891       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
2892       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
2893    o pkg/ctrl/ctrl_init.F:
2894     - add a formal parameter to s/r ctrl_init_rec to print
2895       xx_$(ctrl_valiable)_file for easier debugging
2896     - move call of cal_* routines into the if-block where they are really
2897       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
2898       to specify a startdate
2899    o pkg/seaice:
2900     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
2901       global_ocean.cs32x15/code versions).
2902     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
2903       verification experiment global_ocean.cs32x15.seaice and update results.
2904    o pkg/exf:
2905     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
2906       (according to useExfYearlyFields).
2907    o pkg/cal:
2908     - move calendar setting & summary (previously in cal_readparams.F) into new
2909       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
2910       length of the simulation is set (after SET_PARMS call); This is an attempt
2911       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
2912     - For safety: keep a record of pkg/cal parameter settings status
2913               to allow to STOP if one pkg/cal S/R is called too early.
2914     - add a stop in all basic pkg/cal subroutines if called before setting is done.
2915     - modify cal_getdate.F: stop when nothing was returned;
2916       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
2917       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
2918    
2919    checkpoint63l (2012/04/04)
2920    o pkg/bbl:
2921      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
2922        update global_with_exf output.yearly.txt file.
2923    o pkg/cal:
2924      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
2925      - remove 2 unsused and very short (1 line only) functions ;
2926      - remove unsused subroutines from AD-Diff list.
2927    o model/src:
2928      - start to implement clean wait to stop in initialization S/R (config_check.F,
2929         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
2930    o folowing PRINT_MESSAGE changes:
2931      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
2932    o pkg/bbl:
2933      - modification so it can work with z*
2934      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
2935      - global_with_exf/input.yearly verification; changes output.yearly.txt
2936    o eesupp/src:
2937      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
2938        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
2939      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
2940        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
2941      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
2942      - when using MPI, always set usingMPI=T ; set default accordingly and stop
2943        if not consistent.
2944      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
2945        argument is zero (in case called within single-thread section).
2946    o pkg/fizhi:
2947        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
2948        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
2949    o pkg/exch2:
2950      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
2951        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
2952      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
2953        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
2954        with bad ones coming from a not-yet-updated halo.
2955        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
2956    o pkg/frazil:
2957        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
2958        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
2959    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
2960    o verification/lab_sea
2961      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
2962      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
2963      * nTimeSteps 3 -> 4
2964      * changed reference output accordingly
2965    o pkg/ctrl:
2966      * fix ctrl_get_gen for xx_sst, xx_sss
2967    o pkg/fizhi:
2968      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
2969        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
2970      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
2971        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
2972        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
2973    o pkg/gmredi:
2974      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
2975    o pkg/fizhi:
2976      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
2977        (old)aces open64 tuv test.
2978    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
2979    o pkg/mom_vecinv:
2980      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
2981        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
2982        with non-lin free-surf).
2983    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
2984      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
2985      some compilers (gfortran 4.6.0 on MacOS)
2986    o momentum:
2987      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
2988        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
2989        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
2990    
2991    checkpoint63k (2012/03/17)
2992    o model/src:
2993       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
2994         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
2995       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
2996         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
2997    o model/src: solve_*diagonal.F
2998       - replace division with multiplication by inverse (similar to original version)
2999         update output of AD exp. global_ocean.90x40x15.
3000       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
3001         to enable the use of the vectorized & differentiable solve_tridiagonal.F
3002       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
3003         vertical advection (to get solve_tridiagonal tested in AD mode).
3004    o pkg/seaice: ECCO-CLIVAR merge:
3005      1. seaice AREA relaxation
3006         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
3007         * runtime flag: SEAICE_tauAreaObsRelax
3008      2. modified global mean cost imbalance code: CPP option
3009          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
3010    o another iteration on solve_*diagonal.F
3011       Make choices independent of AUTODIFF
3012       Default will be the adjoinable vectorized version.
3013       Alternative choices are:
3014       * non-adjoinable original version with low memory footprint:
3015         #define SOLVE_DIAGONAL_LOWMEMORY
3016       * still adjoinable but does not vectorize (k as inner-most loop):
3017         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
3018    o testreport
3019     - add option to use a home made wrapper around "make"
3020     - remove MITGCM_IEEE env. variable (no longer active)
3021    o pkg/shelfice
3022     - improve computation of friction velocity for velocity dependent
3023       exchange coefficients: include velocities into SHELFICEBoundaryLayer
3024       block to average velocities vertically
3025     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
3026    o Modify diagonal solvers, now three versions (upon request):
3027      #ifndef SOLVE_DIAGONAL_AUTODIFF
3028        1. default version (dating back a while ago)
3029      #else /* def SOLVE_DIAGONAL_AUTODIFF */
3030      # ifdef SOLVE_DIAGONAL_KINNER
3031        2. adjoinable version with k-innermost loop (G. Forget)
3032      # else
3033        3. adjoinable vectorized version of 2.
3034      # endif
3035      #endif /* SOLVE_DIAGONAL_AUTODIFF */
3036      All flags are currently set within routines, but could/should be moved to CPP-options.
3037      Array bounds for 1. are as before, for 2.,3. cover the entire domain
3038      (could be changed for 1. too).
3039    o verification/lab_sea (fwd):
3040      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
3041        use 7 categories (except hb87), new solve4temp params (except salt_plume),
3042        constant salinity (=4) or variable salinity (salt_plume) done through
3043        SItracer.
3044    o pkg/seaice:
3045      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
3046      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
3047         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
3048        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
3049        SEAICE_freeze got retired) but already better than previously with
3050        SEAICE_freeze=123456.7 deg.C;
3051      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
3052        (safer multi-threaded setting); always set SEAICEuseEVP;
3053      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
3054        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
3055        stop if multiple specifications for the same coeff; make sure default
3056        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
3057    o pkg/obcs:
3058      - allow to switch to upwind 1rst order advection scheme for the advective
3059        flux computation at the open-boundary; disabled for adjoint built.
3060    o pkg/ptracers:
3061      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
3062      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
3063      - add parameter to decide when to start a tracer; use internal flag to
3064        know which tracer to step-forward; switch this internal flag at the top
3065        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
3066        for adjoint built.
3067    o pkg/seaice:
3068      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
3069      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
3070      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
3071    o pkg/ecco:
3072      - fix writing of output file DiagnosCost_ClimSalt/Theta
3073        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
3074    o pkg/seaice:
3075      - add missing initialisation of COR_ICE array in dynsolver.F
3076      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
3077        compiled either way, and is tested in all exps (multidim was only tested
3078        in lab_sea ad before).
3079      - cosmetic change to prepare for future addition of ITD. no change to results.
3080        no defaults change.
3081      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
3082      - by lack of adequate verification experiments, I further used custom versions
3083        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
3084        should be correct.
3085      - avoid recomputations in ad.
3086    o array initialisation in adjoint mode:
3087      1) pkg/mom_common/mom_calc_ke.F:
3088        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
3089        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
3090        part this initialisation is gone, resulting in Floating Point Exception
3091        (caught by open64 compiler with debug option).
3092      2) model/src/convective_weights.F
3093        set output convectCount over the full array range (instead of doing
3094        an update): this fix a similar issue when called within recomputation (adjoint)
3095        which could by-pass the initialisation (normally done in the caller S/R).
3096    o pkg/seaice:
3097      - final version of turbulent flux params, as agreed at MIT ice meet:
3098           SEAICE_mcPheePiston (default is ~ 0.000875)
3099           SEAICE_mcPheeTaper (default is 0.)
3100           SEAICE_frazilFrac (defualt is 1.)
3101           SEAICE_mcPheeStepFunc (default is false)
3102      - changes results at trunction error level
3103      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
3104    o added pkg/frazil:
3105      - see frazil_description.tex for details
3106      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
3107    o pkg/shelfice/shelfice_thermodynamics.F
3108      - fix exponents for velocity dependent exchange coefficients: change
3109        from 2/3(=0) to 0.66666666666666667
3110      - move computation of velocity dependent exchange coefficients into
3111        separate loop, so that it applies to both thermodynamics
3112      - move some divisions by constants out of loops
3113    
3114    checkpoint63j (2012/02/16)
3115    o pkg/seaice:
3116      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
3117      - SItracer:  added run time params, and allow coupling to ocn salinity.
3118    o pkg/seaice: remove (almost) all divisions by constants within loops
3119      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
3120      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
3121      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
3122      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
3123    o pkg/seaice :
3124      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
3125        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
3126      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
3127      - add permanent SItflux diag that corresponds to TFLUX but includes
3128        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
3129      - allow activation/testing of a fix for suspected missing term in
3130        ocn-ice heat budget (to be confirmed). To test this, you want to
3131        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
3132        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
3133      - no change in results, fwd or ad.
3134    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
3135      - switch to variable freezing point.
3136           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
3137      - bug fix : the sublimation term that was missing is now activated.
3138           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
3139      - bug fix : flooding sign term for SIsal0.NE.0.
3140           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
3141    o pkg/seaice:
3142      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
3143        is now the default, and the old default constant freezing point is recovered
3144        with SEAICE_tempFrz0    = -1.96,
3145             SEAICE_dTempFrz_dS = 0.,
3146      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
3147      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
3148      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
3149        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
3150      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
3151        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
3152      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
3153        seaice_growth r149 for legacy branch (no results change).
3154      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
3155        from I. Fenty).
3156      - results did not change except for global_ocean.cs32x15, mostly due to the
3157        switch to variable freezing point (see above item for detail).
3158    o pkg/thsice:
3159      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
3160        seawater freezing in thsice_calc_thickn (not used).
3161    o pkg/seaice: turbulent flux term specification via run time params.
3162      - replace CPP switches with run time switches to facilitate testing
3163      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
3164                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
3165      - added runtime parameter : SEAICEturbFluxFormula
3166      - move Mcphee constants to SEAICE_PARAMS.h
3167      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
3168                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
3169                 remove seaice_summary call (moved to seaice_init_fixed)
3170      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
3171        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
3172      - seaice_summary.F : add missing report of read turbulent flux term set up
3173                           and SITRACER.
3174      - seaice_check.F : check range; inform and stop if retired CPPs are used
3175                         (incl. SEAICE_AGE).
3176      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
3177             CPP switch, same computation as before for the different options.
3178      - change results at the truncation level.
3179    o pkg/seaice:
3180      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
3181        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
3182        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
3183      - update verification/*/input*/data.seaice:
3184        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
3185        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
3186        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
3187        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
3188    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
3189      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
3190        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
3191        difference in results only due to machine truncation.
3192      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
3193        MaykutPolySatVap; keep MIN_LWDOWN.
3194      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
3195      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
3196        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
3197    o pkg/salt_plume:
3198      - isolate saltPlumeFlux array exch into a specific S/R called from
3199        do_oceanic_phys.F
3200      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
3201    o verification:
3202      - move untested set-up to MITgcm_contrib/verification_other.
3203    o pkg/seaice:
3204      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
3205    o pkg/seaice:
3206      - seaice_solve4temp.F (keeping results unchanged):
3207        * add 2 future run-time params to select which saturation vapor pressure
3208          formula is used and how post-iteration fluxes are set.
3209          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
3210        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
3211          the linearized expression to stay consistent with tsurf finding.
3212      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
3213        can be < 0.
3214    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
3215      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
3216        conductive heat flux F_c , and add it explicitly when updating tsurf as
3217        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
3218        so that now F_ia has a consistent meaning through the entire routine.
3219        This causes differences at truncation level: update output of fwd exp.
3220        global_ocean.cs32x15.seaice.
3221    o pkg/seaice:
3222      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
3223        of arrays, sign/direction of fluxes; no effect on results.
3224      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
3225        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
3226        note: this should have been done before changing celsius2K default.
3227      - to keep results unchanged, add back old value of celsius2K in verification
3228        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
3229      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
3230        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
3231        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
3232        freezing temp is consistent with value in seaice_growth.F ; this causes
3233        differences at machine truncation level: update lab_sea AD output (3/4).
3234    o pkg/seaice:
3235      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
3236        and climsst/sss even when using seaice (to prevent calculation that might
3237        use SST on land); does not affect any verification exp.
3238      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
3239        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
3240    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
3241      over land (non-legacy code)
3242    o vectorize salt_plume package:
3243      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
3244      - this code computes plumebk everywhere (also over land), thus requires
3245        code to avoid divisions by zero and catch the case of kLev=Nr.
3246      - efficiency of salt_plume_frac is still sub-optimal
3247    o tools (genmake2):
3248      - fix makefile NAME specification (option: -makefile NAME) by adding
3249        "-f $MAKEFILE" in few places where it was missing including makedepend
3250        command (contribution from Paul).
3251    
3252    checkpoint63i (2012/01/24)
3253    o model/src:
3254      - add factorized versions of some EOS code to find_rho.F,
3255        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
3256    o model/src:
3257      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
3258      - change default celsius2K from 273.16 to 273.15
3259      - to keep results unchanged, add back old value of celsius2K in verification
3260        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
3261         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
3262    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
3263      to make TAF generate vectorizable code
3264    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
3265       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
3266       have flags that do this more efficiently.
3267    o pkg/diagnostics/diagstats_calc.F
3268      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
3269    o pkg/obcs (with exch2):
3270      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
3271        and remove code (in obcs_readparms.F) which was based on EXCH of indices
3272        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
3273    o pkg/exf and seaice exp:
3274      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
3275        so that switching off area & heff advection flags does not affect results.
3276      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
3277      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
3278        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
3279        results of verification experiments: 1D_ocean_ice_column(fwd),
3280        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
3281        and offline_exf_seaice (all 4).
3282    o pkg/seaice:
3283      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
3284        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
3285      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
3286        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
3287        not multi-dim advection;
3288      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
3289        SHORTWAVE_HEATING #undef.
3290    o optim: make Makefile more robust (?)
3291    o pkg/obcs:
3292      * fix treatment of obcs_read_pickup for TAF
3293    o pkg/shelfice:
3294      * add missing initialisation of num_shifwflx
3295      * new adjoint verification exp. for isomip
3296      * change Prandtl and Schmidt numbers from generic formulations
3297        (in terms of model diffus. and visc.) to separate runtime
3298        parameters, with Holland and Jenkins (1999) default values.
3299    o pkg/exf (interpolation):
3300      - extended input field (2 rows) near the N & S poles:
3301        * fill in with the symetric value (when even Nb of data in longitude)
3302        * add average value at the poles only for scalar quantities ; for vector
3303          component interpolation, skip the averaging and keep duplicated values,
3304          unless the 2 components have same location (uvInterp=T) in which case
3305          interpolate the 2 components together using S/R EXF_INTERP_UV.
3306      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
3307        together: this allows to account properly for local orientation when
3308        averaging at N & S pole.
3309      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
3310        exf-interpolation near N & S poles. Undef by default.
3311      - add debug check/print on 1rst iter if debugLevel >=2.
3312    o pkg/exf:
3313      - change masking flags definition (no longer "parameter"), put them in
3314        common block and set them in S/R EXF_INIT_FIXED.
3315      - change recognized masking flag from s,u,v to c,w,s since the mask
3316        to use (maskC,W,S) depends on position on model grid and has little to
3317        do with scalar/vector difference; fix masking if using P-coordinates.
3318      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
3319        and update results of exp. global_with_exf (x2).
3320      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
3321    o pkg/obcs
3322      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
3323    o pkg/exf (interpolation):
3324      - assume periodicity in X only if input field cover full longitude range.
3325      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
3326        and should vectorise).
3327      - fix input lat of the 2 added row (in case we provide N.pole data).
3328    
3329    checkpoint63h (2011/12/30)
3330    o pkg/seaice:
3331      - change declaration of UVM from _RL to _RS in order to get B-grid
3332        uIce,vIce monitor when _RS = real*4
3333    o pkg/offline:
3334      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
3335      - compute vertical velocity if not read from file (switch on exactConserv
3336        & staggerTimeStep);
3337      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
3338    o verification:
3339      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
3340        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
3341        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
3342      - update output of exp. global_ocean.cs32x15.viscA4 after changing
3343        grid-file angles (used here for coriolis-3d);
3344      - remove (or gzip) few files not needed to run fizhi-cs experiments.
3345    o pkg/exf (vector interpolation):
3346      - rotate vector component toward local grid-axis orientation using grid-angles
3347        (stored in GRID.h) instead of locally computed rotation angle; keep old code
3348        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
3349    o pkg/seaice:
3350      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
3351        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
3352    o pkg/PKG_OPTIONS.h files:
3353      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
3354        outside of the #ifdef ALLOW_THISPKG / #endif block.
3355      - update verification/*/code/PKG_OPTIONS.h files.
3356    o add a verification experiment (offline_exf_seaice/input.seaice) that test
3357      the B-grid LSOR solver
3358    o pkg/seaice: sort out emissivity and long wave radiation step 2:
3359      - add emissivity for snow and ice as new run-time parameters
3360        (unfortunately) that default to the corresponding exf values; this
3361        changes results in most verification experiments so that for backward
3362        compatibility these parameter have to be set explicitly to inconsistent
3363        values (ugly);
3364      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
3365        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
3366        until we agree how to handle this bug properly
3367    o pkg/exf (interpolation):
3368      - add a set of run-time param ({inputfield}_interpMethod), one for
3369        each interpolated input field, to select the interpolation method
3370        with a value of zero switching off the interpolation;
3371      - print interpolation parameters to standard output;
3372      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
3373        (to use instead runoff_interpMethod=0 in data.exf).
3374      - simplify default setting of interpolation parameters (for all fields,
3375        set position to match model grid cell-center position, leading to trivial
3376        interpolation in case of regular Lat-Lon grid) and fix for the case of
3377        non-uniform delY.
3378    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
3379       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
3380       this factor is absolutely required, because the lw exitance (= out-going
3381       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
3382       where the reflectivity rho = 1-emissivity for conservation reasons. Once
3383       this is established, we can remove the CPP-Flag (if we want to).
3384    o pkg/seaice:
3385      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
3386        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
3387      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
3388        what the name implies (and not emissivity*BoltzmannConstant), this means
3389        the old default value of 5.5e-8 now means
3390        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
3391        S/R exf_readparms
3392      - FV-discretization of the B-grid LSOR solver, turn on with
3393        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
3394        of the calling routine dynsolver, so that B and C-grid code look a
3395        little more alike.
3396      - fix index bugs in ostres.F (B-grid code)
3397    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
3398    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
3399      default for SEAICE_emissivity, if useEXF; requires setting a wrong
3400      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
3401      backward compatiblity
3402    o model/src: use sigmaR in calc_ivdc
3403    
3404    checkpoint63g (2011/12/16)
3405    o pkg/seaice/seaice_growth.F:
3406      fix heat conservation of the coupled ocean-seaice system.
3407      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
3408      solid vs liquid water treatment is resolved via QNET.
3409    o pkg/seaice/seaice_growth.F:
3410      add missing term for sublimation in saltFlux, which was breaking conservation.
3411    o pkg/seaice/seaice_model.F:
3412      Remove this patholigical case treatment in evolution branch,
3413      where it is un-necessary and breaks conservation.
3414      Update global_ocean.cs32x15/results accordingly for
3415      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
3416    o model/src:
3417      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
3418      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
3419    o pkg/obcs:
3420      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
3421      tendency for temperature and salinity that is then applied to update
3422      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
3423      horizontal advection and diffusion contributions on the boundary (in
3424      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
3425      removing the mask in S/R timestep_tracer. The advantage of this approach is
3426      that the updated tracer values include contributions from the surface
3427      forcing and vertical diffusion.
3428      This modification changes exp4.stevens because of vertical diffusion.
3429    o model/src:
3430      change non-curvilinear grid setting to also work with exch2 + blank tiles:
3431      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
3432        face dimensions.
3433      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
3434        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
3435        and INI_SPHERICAL_POLAR_GRID.
3436      change test-experiment global_ocean.90x40x15:
3437      - split the domain in many more tiles (9x4 tiles of 10x10 each);
3438      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
3439      - update results of both test (std & dwnslp).
3440    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
3441       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
3442    o model/src:
3443      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
3444        and fix initialisation when using sigma-coords.
3445    o model/src:
3446     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
3447       to their current value at the beginning of forward_step.F": add a new run-time
3448       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
3449     - set doResetHFactors=T in the following test exp:
3450        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
3451        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
3452        and tutorial_global_oce_in_p (nonLinFS in p)
3453    o pkg/ecco
3454      - added IES cost term
3455    o verification/advect_xz
3456      - scale down the depth by 1/100 (from 200 km to just 2.km)
3457      - add secondary test using divergent flow, r-star and implicit vertical advection.
3458      - add note (check_conserve_TS.txt) and matlab script to check global
3459        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
3460    o pkg/rbcs:
3461      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
3462    o pkg/obcs (Stevens BCs):
3463      - fix various problems in the phase speed computations of the Stevens
3464        boundary conditions:
3465        - sign error for western and southern boundaries,
3466        - time tendencies were underestimated by factor of dTracerLev and some just
3467          zero (for multidim advection schemes) -> now estimate time tendencies
3468          from difference between previous (n) time level and the one before (n-1);
3469          this requires storing a field per tracer per boundary, also in the pickup
3470          files.
3471        - replace deltaTmom in cflMer/Zon computation with dTracerLev
3472        - set default phase velocity to cflMer/Zon
3473      - update verification experiment exp4.stevens
3474    o pkg/generic_advdiff (implicit_r):
3475      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
3476        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
3477      - fix implicit vertical diffusion or advection with NonLin FreeSurf
3478        (was using current recip_hFacC instead of future recip_hFacC): set future
3479        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
3480        solver S/R ;
3481      - fill diagnostics of vertical advective fluxes (computed from tendency)
3482        when using implicit vert. advection;
3483      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
3484         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
3485         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
3486         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
3487    o pkg/diagnostics:
3488      - add diags for T & S tendency which goes through Adams-Bashforth.
3489    
3490    checkpoint63f (2011/11/30)
3491    o pkg/obcs/obcs_calc_stevens.F:
3492      - join some loops to reduce number of if-statements
3493      - fix a bug in code for northern and southern boundaries.
3494    o pkg/seaice/seaice_init_varia.F
3495      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
3496        caused zero ice-velocities for the B-grid code
3497    o pkg/seaice/seaice_init_fixed.F
3498      - fix a bug in the initialisation of the second metric terms
3499        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
3500      - this affects all seaice configurations with useCurviLinearGrid = .true.
3501        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
3502        = .true. (default)
3503      - the only verification experiment affected is global_ocean.cs32x15:
3504        icedyn, seaice, and seaice_dynmix (AD)
3505    o pkg/thsice/thsice_diagnostics_state.F
3506      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
3507        not contain garbage that can lead to surprises in diagstats_calc.F
3508    o model/src:
3509      - move bi,bj loops inside INTEGR_CONTINUITY ;
3510      - call INTEGR_CONTINUITY directly from forward_step.F
3511        (previously called from momentum_correction_step.F)
3512      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
3513        forward_step.F and pkg/ecco/the_main_loop.F
3514    o model/src/do_oceanic_phys.F:
3515      - reset addMass to zero only if useICEFRONT ;
3516      - separated k-loop for rhoInSitu calculation ;
3517      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
3518        and at constant T,S (= WdRHOdP);
3519      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
3520        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
3521        transport of locally-referenced potential density);
3522        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
3523    o gluemnc:
3524      - replace ncrcat with ncks when adding variables to *.glob.nc
3525      - change the way variables without record dimensions are handled so that
3526        files that have variables with and without record variables can be glued:
3527        add a record dimension with a new unique name to be able to differentiate
3528        between variable with and without a-prior record dimensions. Remove
3529        this record dimension before adding the variable to the *.glob.nc file.
3530        This procedure automatically works also for grid.*.nc files that do not
3531        have any record dimension.
3532    o verification/cpl_aim+ocn:
3533      - generate new reference output on baudelaire (gfortran, mpich2) (previously
3534        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
3535    o pkg/obcs/obcs_calc_stevens.F:
3536      - add code for northern and southern boundaries.
3537      - reorder some loops to save some operations and so that drFBar can be scalar
3538    o model/src:
3539      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
3540        truncation) and add diagnostics for Adams-Bashforth tendency increment.
3541      - update test-exp. AD output:
3542        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
3543      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
3544        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
3545        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
3546        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
3547        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
3548        tutorial_plume_on_slope.
3549    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
3550      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
3551      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
3552      does not even come with an F77 compiler anymore, this should not be
3553      a limitation
3554    
3555    checkpoint63e (2011/11/06)
3556    o pkg/seaice adjoint of LSR:
3557      - substantially rework STORE dirs.
3558      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
3559        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
3560        and only perform SOLV_MAX_FIXED adjoint iters.
3561        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
3562        always goes to same record, meaning that the last forward field will be
3563        the one used in the adjoint - an approximation.
3564      - now produces non-zero LSR-related gradients, and acceptable gradients for
3565        An's zonal (x-z) test case (to be checked in)
3566      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
3567        (but these are screwed up by the thermodynamics in the first place);
3568        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
3569        output_adm.txt also reflects changes to seaice_lsr
3570      - global_ocean.cs32x15:
3571        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
3572          (output_adm.seaice.txt was updated)
3573        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
3574          (output_adm.seaice_dynmix.txt)
3575    o test-exp. exp4+stevens:
3576      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
3577    o pkg/seaice (lsr solver):
3578      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
3579        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
3580      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
3581      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
3582        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
3583      - compute (with new S/R) and print initial (+ free-driff sol. if available)
3584        and final residual of linearised system.
3585    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
3586      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
3587    o pkg/obcs: Stevens BCs (still only for east and west)
3588      - fix Stevens BCs by using intermediate velocities of previous
3589        time step as "baroclinic" contribution rather velocity of one grid cell
3590        inside the boundaries; more consistent but makes the entire treatment
3591        more complicated, requires new pickup files and two new S/Rs:
3592        obcs_copy_uv_n and obcs_save_uv_n
3593        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
3594        (undefined by default)
3595      - silently move computation of some grid factors into separate loops to
3596        save some recomputations
3597      - add a hack for non-linear free surface
3598      - add a verification experiment to exp4 that tests this code
3599    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
3600    
3601    checkpoint63d (2011/10/25)
3602    o pkg/obcs + seaice-dynamics:
3603      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
3604        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
3605        values (consistent with an implicit method).
3606      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
3607        return to older implementation (same results as before); note that none of
3608        the "experimental" OBCS_SEAICE options are implemented in the new version.
3609      - switch test exp. seaice_obcs to use new version (update output).
3610    o pkg/seaice:
3611      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
3612      - add parenthesis in Water-Ice drag calculations (evp & lsr);
3613      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
3614        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
3615      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
3616        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
3617    o pkg/layers:
3618      - Include potential density as new coordinate (Thanks to David Munday)
3619    o pkg/dic:
3620      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
3621        carbonate computation/output to CALC_PCO2_APPROX
3622    o pkg/generic_advdiff
3623      - make TAF generate code that vectorizes:
3624        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
3625    o model/src:
3626      - improve vectorization also for adjoint code of
3627        solve_tridiagonal and solve_pentadiagonal. As this requires up to
3628        5 new 3D-fields, this code is only turned on for the combination of
3629        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
3630        for singular matrix check (only for TARGET_NEC_SX).
3631      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
3632        ALLOW_AUTODIFF. This flag now needs to be set outside of
3633        solve_tri/pentadiagonal.F
3634    o pkg/exf:
3635      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
3636        optional namelist EXF_NML_OBCS).
3637      - add many debug-print (to trace down where pkg/cal error msg comes from)
3638    o pkg/mom_vecinv/mom_vi_hdissip.F
3639      - rearrange loops so that vectorization is improved and in particular
3640        the adjoint routine vectorizes. The code is a little longer now, but I
3641        think easier to read.
3642        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
3643    o pkg/seaice:
3644      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
3645    o pkg/exch2:
3646      - alternative code (without tile x tile matrix) for cumulated (global) sum;
3647        used as default; keep using matrix version in adjustment.cs-32x32x1.
3648    o tools/build_options:
3649      - after merging some MPI and/or multi-threads specific optfiles so that
3650        the modified default optfile support both built (using genmake2 -mpi
3651        for the MPI built, using genmake2 -omp for OpenMP built),
3652        move now obsolete optfiles to tools/build_options/unsupported/
3653       (add copy of email sent to support list in doc/optfiles_changes.txt)
3654    
3655    checkpoint63c (2011/09/28)
3656    o pkg/ebm:
3657      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
3658        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
3659    o pkg/seaice (SItracer pickup)
3660    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
3661      To be done:
3662      - thorough testing of missing fields in S/R seaice_read_pickup
3663      - thorough matching between generic tracers and specific fields used
3664        (e.g. volume-weighted age, area-weighted age, salinity, ...)
3665    o pkg/grdchk:
3666      - all procs calculate and print finite-difference gradient (for testreport)
3667      - change description output used by testreport;
3668      - AD testing: also compare and report Finite-difference gradient;
3669        => update all output_adm*.txt
3670    o test exp. global_ocean_ebm:
3671      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
3672        and turn on exactConserve; update (fwd) output.
3673    o pkg/seaice (LSR):
3674      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
3675      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
3676        * identical results with non-CS topology (but save up to half of EXCH calls)
3677        * no much changes in cs-32 verification tests since no ice at face edges
3678         (differences due to convergence criteria, since nb of iterations changed)
3679        * expect some differences on lat-lon-cap grid.
3680        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
3681    o pkg/exch2:
3682      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
3683        many tiles); until alternative coding is added, just add a stop.
3684    o pkg/kpp:
3685      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
3686        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
3687    o optfiles:
3688      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
3689        into corresponding standard one, which now support different build:
3690        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
3691      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
3692    o pkg/obcs (seaice):
3693      - add missing EXCH for uIce,vIce after applying OBCS;
3694      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
3695        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
3696        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
3697      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
3698      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
3699        and eedata.mth for MPI and mutlti-threaded testing.
3700    o pkg/flt:
3701      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
3702      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
3703      - fix pickup and trajectories + profiles output with multi-threads;
3704      - add parameter to select group of fields to write along trajectory and
3705        profile (default unchanged);
3706      - only call PORT_RAND* function when flt_noise <> 0;
3707      - add multi-threaded test for verification exp. flt_example.
3708    o eesupp/src:
3709      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
3710      - USE_OMP_THREADING: check that number of threads (from eedata) matches
3711        actual number (from env.var. setting).
3712    o pkg/ebm:
3713      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
3714      - add multi-threaded test for verification exp. global_ocean_ebm
3715    
3716    checkpoint63b (2011/08/29)
3717    o pkg/ebm:
3718      - fix sign of runoff;
3719      - update directly forcing fields (Qnet,EmPmR) to use standard
3720        external_forcing_surf.F (remove ebm_forcing_surf.F);
3721      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
3722      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
3723        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
3724      - update global_ocean_ebm parameters file data and update output (fwd+ad).
3725    o verification/matrix_example:
3726      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
3727        MPI and mutlti-threaded testing.
3728    o pkg/matrix:
3729      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
3730      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
3731      - fix for multi-threaded (remove DATA statement);
3732      - use standard DIFFERENT_MULTIPLE function;
3733      - add MATRIX_OPTIONS.h
3734    o verification/matrix_example:
3735       To allow to split the domain in several tiles, change the domain size
3736        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
3737        Western side) of land points.
3738    o (*_)write_pickup:
3739      - fix few bugs in mypackage_read/write_pickup.F
3740      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
3741        array of length 1 (was caught by compiler syntax-check).
3742    o pkg/diagnostics (velocity potential solver):
3743      - fix initialisation of main diagonal matrix (for overlap values)
3744    o tools/build_options:
3745      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
3746        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
3747      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
3748        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
3749        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
3750        and use "-devel" testreport option for standard testing on baudelaire.
3751    o pkg/grdchk:
3752      - Assume that all gradient-check position are within the same tile
3753        corresponding to global indices (iGloTile,jGloTile) and that
3754        positions (i,j indices or nbeg) are local to this tile;
3755      - set tile local-indices and proc. number according to tile global-indices;
3756      - remove grdchkwhichproc from namelist (retired param);
3757      - send adjoint gradient to all procs so that all procs print it to STDOUT;
3758      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
3759    o adding package bbl (Bottom Boundary Layer)
3760      description in MITgcm/pkg/bbl/bbl_description.tex
3761      example/test experiment in MITgcm_contrib/bbl
3762    o adjoint verifications
3763      - changed 5 experiments to multi-tiles
3764        * global_ocean.90x40x15
3765        * obcs_ctrl
3766        * offline_exf_seaice
3767        * tutorial_dic_adjoffline
3768        * tutorial_tracer_adjsens
3769        changed reference output for those that crossed tile boundaries
3770        (changed choices of gradient check positions)
3771      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
3772      - temporary bug fix in grdchk_loc.F for obcs
3773    o genmake2 & testreport
3774      - add target "obj" (just for OBJFILES files) to Makefile;
3775      - add option to specify FEXTRAFLAGS on command line.
3776    o pkg/mypackage:
3777      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
3778    
3779    checkpoint63a (2011/08/02)
3780    o pkg/diagnostics (velocity potential):
3781      - fix velocity-potential calculation when using OBCS: balance net inflow
3782        at each level (new S/R OBCS_DIAG_BALANCE).
3783      - fix some of the problems with OBCS in stream-function calculation.
3784    o pkg/exf/exf_readparms.F
3785      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
3786        EXF_NML_OBCS) more consistent, so that you need not have these lists
3787        in data.exf when they are not used.
3788    o optim/optim_readdata.F:
3789      - add some output about obcs variables that might help debugging
3790      - add a check about nvarlength
3791    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
3792    o pkg/diagnostics (velocity potential):
3793      - fix mask for OBCS (still problems in stream-function with OBCS);
3794      - add specific parameter (default = main code CG2D params) for solver;
3795      - in case of poor convergence, use solution corresponding to lowest residual.
3796    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
3797      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
3798      and should be avoided where possible.
3799    o model/src (rStar):
3800      - include r* effect on reference-state (PhiRef) in totPhiHyd
3801        (so that it's really the potential anomaly at the cell center);
3802        affect solution only if z* with full pressure in EOS.
3803      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
3804        update output (because of z* in totPhiHyd and viscA4 changes);
3805      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
3806        @ constant r) until interpolation at constant r is implemented.
3807    o pkg/diagnostics
3808      - fix RCENTER diagnostics in case cell center is not at interface middle
3809    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
3810      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
3811      that THETA and SALT are "conservative temperature" and "absolute
3812      salinity"
3813    o pkg/ctrl
3814      - fix computation of endrec in s/r ctrl_init_rec
3815      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
3816    o pkg/seaice/seaice_growth.F
3817      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
3818        remove then obsolete STORE directives
3819      - fix STORE directives for tice and tices, so that only the
3820        appropriate part of the fields are stored (and not the entire
3821        field); update global_ocean.cs32x15.seaice AD output.
3822      - cosmetic changes: adjust CPP flags and indentation for better
3823        legibilty
3824    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
3825      Chris Wilson)
3826    o pkg/gmredi:
3827       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
3828       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
3829    
3830    checkpoint63  (2011/07/11)
3831    o pkg/exch2:
3832     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
3833     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
3834       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
3835       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
3836    o pkg/diagnostics:
3837     - deal with pairs of post-processed diags which are computed together; in
3838       particular, re-order list of diags within 1 file to save 2nd computation.
3839     - add S/R to compute velocity stream-function (called after velocity-potential
3840       calculation) from divergence free transport -> new diagnostics "PsiVEL".
3841     - add parameter to select grid-point location where PsiVEL == 0.
3842    o eesupp/src:
3843       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
3844       (specific S/R needed with exch2 topology - for now, just print an error msg)
3845    o pkg/shelfice
3846     - Implement friction velocity-dependent transfer coefficients following
3847       Holland and Jenkins, JPO, 1999
3848       Original code by M. Losch with small modifs.
3849       Enable with CPP option SHI_ALLOW_GAMMAFRICT
3850       and runtime flag SHELFICEuseGammaFrict
3851    o verification lab_sea & global_ocean.cs32x15:
3852     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
3853       does not miss some dependencies (but is slower) and also works with many files
3854       (default makedepend limitation for AD built).
3855     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
3856    o pkg/diagnostics:
3857     - add run-time parameter "useMissingValue" (def=False) to fill land-point
3858        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
3859       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
3860     - Extend the use of "missing_value" setting from data.diagnostics for the case
3861       of counter-diagnostics (where fraction-weight is zero). This applies both to
3862       MNC and MDS output files.
3863    o pkg/seaice/seaice_growth.F:
3864      - add 'a priori' cap of latent heat flux based on actual mass considerations
3865        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
3866        non-legacy seaice_solve4temp.
3867      - add diagnostic of the residual sublimation freshwater flux (the freshwater
3868        flux taken from the ocean if the total actual latent heat fluxes exceed
3869        the maximum)
3870      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
3871       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
3872      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
3873       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
3874      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
3875      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
3876    o verification 1D_ocean_ice_column:
3877       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
3878       update results
3879    o pkg/diagnostics:
3880     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
3881       which are not filled-up but computed from other diags ; In this case, the mate
3882       diag points to the primary (filled-up) diag to used for post processing.
3883     - Update Velocity-potential computation using post-processed diag framework.
3884     ==> Change the ordering of fields and time-periods in MDS output file
3885       when using periodic averaging: now writes one time record with the full set
3886       of fields for this time period, then the next time reccord (it used to be
3887       one field with the full set of time records then the next field).
3888         Note: this is now similar to NetCDF (MNC) output file. <==
3889    
3890    checkpoint62z (2011/06/21)
3891    o adjoint monitor:
3892     - Add adjoint monitor output for packages exf, seaice
3893       and update relevant testreport output
3894    o pkg/seaice:
3895     - re-order diags inits so that they appear in order in available_diagnostics.log
3896     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
3897       area/heff/hsnow preceeding thermodynamic growth/melt.
3898     - modified diag: SIdA; output actual effect, as the description states.
3899     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
3900     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
3901       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
3902        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
3903     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
3904     - added diagnostics for seaice generic tracers (SItr*).
3905     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
3906     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
3907     I. Fenty: 18-Jun-2011:
3908     Minor changes to seaice package:
3909     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
3910        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
3911       - Differentiated "regularization variables" from "floor variables"
3912        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
3913        * hiceMin became SEAICE_hice_reg (old hiceMin)
3914          (with _reg meaning regularization variable)
3915       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
3916        so as to ensure energy conservation when going between phases
3917      - A22 was not used anywhere
3918     2) Changed regularization procedure for heffActual and hsnowActual to ensure
3919        well-boundedness and smooth adjoint in seaice_growth.F
3920     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
3921        because the old regularization always set heffActual >= 0.05 cm
3922     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
3923        on AREA when HEFF > 0.
3924      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
3925        requiring that DISABLE_AREA_FLOOR *not* be defined
3926     Affected verifications:
3927      - 1D_ocean_ice_column (output.txt output_adm.txt)
3928      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
3929    o pkg/diagnostics:
3930      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
3931      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
3932        (was _RL, now integer) with option = 0 to retrieve all levels.
3933      - add pieces of code to compute velocity potential at each level (new diagnostics
3934        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
3935        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
3936      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
3937        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
3938        and in diagnostics_fract_fill.F (do not need a valid pointer for the
3939        diagnostics counter-mate); check that definition of counter-diagnostic
3940        includes a valid counter-mate (in diagnostics_set_levels.F).
3941    o model/src (rStar):
3942      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
3943        affect solution only if z* with full pressure in EOS;
3944        update output of test-exp global_ocean.90x40x15.
3945    o pkg/seaice:
3946      - introduce siEps=1e-5 parameter
3947      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
3948      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
3949      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
3950        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
3951        as well as ice cover age and ridging index (attached to AREA).
3952        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
3953        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
3954        Up to SItrMaxNum=3 tracers can be used simultaneously.
3955    o pkg/salt_plume:
3956      -introduce SPsalFRAC run time parameter that sets the fraction of the
3957       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
3958       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
3959    o model debug options:
3960      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
3961        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
3962      - Refine debug-msg printing selection (3 new levels):
3963        debugMode  : controls printing of debug messages (sequence of S/R calls).
3964        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
3965         debLevZero =  0 ; /* level of disabled aux. msg printing */
3966         debLevA =  1 ; /* level of minimum  aux. msg printing */
3967         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
3968         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
3969         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
3970         debLevE =  5 ; /* level of extensive debug printing */
3971        New debugLevel default: with default debugMode value (=F),
3972          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
3973          and if debugMode=T, default debugLevel = 4 (debLevD).
3974        Relation with previous settings:
3975         debLevB (=2) corresponds to former debLevA (=1)
3976         debLevD (=4) corresponds to former debLevB (=2)
3977        Note:
3978         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
3979         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
3980            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
3981      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
3982        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
3983    o pkg/obcs:
3984      - change OBCSfixTopo default from True to False (should not change the results);
3985        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
3986    o pkg/thsice:
3987      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
3988        2nd layer seaice sublimation (unlikely to happen)
3989      - use Interior mask for OBCS in thsice_advection.F (similar to what is
3990        done in gad_advection & seaice_advection).
3991    o adjoint:
3992      bug fix spotted by Gael Forget:
3993      seaice_advection and thsice_advection still had
3994      legacy CPP options to avoid CS corner updates for adjoint
3995    o pkg/seaice:
3996      => Change some of the defaults (2011/05/29):
3997         - change SEAICEuseFluxForm default (from False to True)
3998         - change DIFF1 default (from 0.004 m/s to 0. m/s)
3999         And print warnings if DIFF1 is not set in data.seaice and centered
4000          avection scheme is used without any diffusion.
4001      also:
4002      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
4003      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
4004      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
4005        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
4006        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
4007      update results of test exp.:
4008         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
4009             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
4010             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
4011         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
4012         seaice_obcs: output (SEAICEuseFluxForm=T)
4013      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
4014          for standard fwd & AD lab_sea tests (to keep the same output).
4015    o pkg/seaice/seaice_growth.F:
4016      - use Ian Fenty's capping formulas for actual ice
4017      thickness thoughout EVOLUTION branch.
4018      - put treatment pathological case #2) in CPP brackets
4019      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
4020      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
4021    o pkg/seaice:
4022      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
4023      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
4024      also pass fac as a param, which can be 1. (to update the tendency
4025      field) or the time step (to update the field itself).
4026      - seaice_advdiff.F: for multidim, call seaice_diffusion with
4027      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
4028      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
4029      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
4030      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
4031    o pkg/seaice:
4032      diffusion with centered advection scheme (diffus.F & advect.F):
4033      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
4034        to just compute the laplacian of input-field.
4035      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
4036      - fix flux-form version in diffus.F to conserve tracer.
4037      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
4038       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
4039    
4040    checkpoint62y (2011/05/26)
4041    o pkg/seaice:
4042     - seaice_growth.F : in EVOLUTION branch, always include
4043       a_QSWbyATM_cover in qnet (as it should be).
4044     - verification/global_ocean.cs32x15 : update results accordingly
4045       (output.seaice.txt output_adm.seaice.txt).
4046    o pkg/seaice + obcs:
4047     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
4048       equivalent of assuming no tracer gradient outside the OB region.
4049       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
4050     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
4051       after changes above);
4052     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
4053       only at OB location (instead of over a band of OLx width).
4054    o pkg/seaice:
4055     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
4056       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
4057    o pkg/obcs:
4058      - split header file "OBCS.h" into 4 separated files:
4059        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
4060       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
4061         (contain no conditional statement which depends on OBCS options).
4062      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
4063        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
4064    o ctrl, cost, grdchk & autodiff pkgs:
4065      - make options file more standard (like other {PKG}_OPTIONS.h file but
4066        with AD_CONFIG.h); clean-up some of the included header files.
4067    o pkg/obcs:
4068      - do not mask tracer when applying OB (tracer == 0 could generate problems)
4069      - apply tracer OB values to tracer field only at OB location (instead of
4070        over a band of OLx width)
4071      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
4072      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
4073        obcs_apply_tloc.F & obcs_apply_sloc.F
4074    o obcs in model/src:
4075      - call OBCS_APPLY_W only if NonHydrostatic.
4076      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
4077      - reset dEtaHdt and wVel to zero outside OB interior region ;
4078      - leave tracer unchanged outside OB interior region: This has no effect
4079        on the solution but just to prevent unrealistic tracer value outside OB.
4080      - zero out velocity outside OB interior region: This has no effect on
4081        the solution but just to prevent unrealistic velocity outside OB.
4082    o obcs and non-lin free-surf:
4083       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
4084       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
4085       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
4086       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
4087       update results of test-exp. exp4(nlfs).
4088    o exp4 (nlfs) test-exp:
4089       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
4090       with NonLin-FreeSurf); update output.nlfs.txt
4091    o obcs and 2d/3d solver norm:
4092       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
4093       and outside OB interior region (will allow to place OB further inside the
4094       domain). Depending on the domain, can affects cg2d-Norm (previous
4095       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
4096       and cg3d-Norm (previous Norm was computed before canceling OB terms),
4097       e.g. in tutorial_plume_on_slope.
4098      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
4099    o pkg rbcs:
4100      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
4101      - add capability to apply relaxation to horizontal velocity uVel & vVel.
4102    o pkg/grdchk: add gradient check for control variable xx_shifwflx
4103    o pkg/shelfice/shelfice_init_fixed.F
4104      fix CPP-flag combinations
4105    o pkg/seaice: Merge iceage code of Pierre Rampal
4106      * update/change/correct ice age calculations
4107      * add age updates for pathological cases
4108      Probably needs more testing...
4109    
4110    checkpoint62x (2011/05/13)
4111    o pkg/mom_vecinv:
4112       high-order vorticity scheme: use interior masks (maskInW & S)
4113       to zero-out (outside OB) gradient of vorticity.
4114    o verification exp.:
4115       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
4116       hs94.128x64x5 and seaice_obcs ; update results.
4117    o pkg/obcs:
4118      fix bug in OBeta for YZ sections in obcs_exf_load.F
4119    o pkg/ctrl, pkg/shelfice, and optim:
4120      - add new control variable xx_shifwflx (fresh water flux underneath ice
4121        shelves). This is almost as tedious as obcs-ctrl, because the
4122        variables needs its own mask.
4123      - add a cost function term that penalizes the deviation of xx_shifwflx
4124        from the first guess (zero) in analogy to other control variables
4125    o pkg/shelfice:
4126      - start basic adjoint
4127    o pkg/ctrl:
4128      - remove extra 2D field "for good measure" when initializing in
4129        ctrl_set_globfld_[xy/xz/yz].F
4130      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
4131      - improve error messages in ctrl_set_unpack_*
4132    o OBC implementation in momentum:
4133       use interior masks (maskInC,W & S) in momentum S/R:
4134       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
4135       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
4136       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
4137       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
4138       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
4139        (and also with Leith/Smagorinsky harmonic-viscosity).
4140       Update output of experiment dome and exp4 (+nlfs).
4141    o exp4 test-exp:
4142      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
4143        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
4144        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
4145        time-varying OB at Western-side for wVel (NonHyd); update output.
4146      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
4147        and biharmonic-viscosity ; also use prescribed time varying OB.
4148    o pkg/obcs:
4149      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
4150    o model/src:
4151      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
4152      - initialise startTime & nIter0 with unlikely values: allows to set one
4153        from the other without ambiguity.
4154    o seaice_obcs test-exp.:
4155      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
4156    o pkg/obcs:
4157      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
4158        no longer needed with maskInC,W,S in pkg/generic_advdiff.
4159    o pkg/seaice:
4160      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
4161        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
4162      - fixed bug in the initialization of sea ice salinity variable HSALT
4163        in seaice_init_varia.F  (removed dependence on ICE2WATR)
4164    o fizhi-cs test exp.:
4165       switch reference output convention for these 2 non-standard test-exp,
4166        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
4167          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
4168       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
4169    o model/inc:
4170      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
4171        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
4172    o pkg/seaice:
4173      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
4174    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
4175      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
4176        and initial HSALT
4177    
4178    checkpoint62w (2011/04/26)
4179    o pkg/mom_fluxform:
4180      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
4181      - use parameter "sideDragFactor" in no-slip BC side-drag part.
4182      - update output of exp. global_ocean.90x40x15
4183    o pkg/mom_vecinv:
4184      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
4185    o update seaice exp.:
4186      use more consistent parameter values (remove "backward compatability only":
4187       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
4188      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
4189       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
4190    o update test-exp global_ocean.90x40x15:
4191      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
4192      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
4193      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
4194      o turn on zStar & viscA4 in standard set-up (dir input/)
4195        and update output files: output.txt & output.dwnslp.txt
4196    o new AD-test experiment: obcs_ctrl
4197      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
4198    o pkg/dic:
4199      fix two bugs in handling water vapour pressure in carbonate chemistry
4200      and air-sea fluxes. Found by Val Bennington and Galen McKinley
4201      (add DIC Option = WATERVAP_BUG to recover old results)
4202      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
4203    o adding allowInteriorFreezing option to check for water below freezing point
4204      at depth and bring the negative heat anomaly to the surface level
4205    o pkgs _fields_load:
4206      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
4207      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
4208        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
4209        rbcs to get interpolation weights and time reccord number.
4210      - fix multi-threading in aim_fields_load.F
4211      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
4212    o external_fields_load:
4213      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
4214       interpolation weights) to use in a periodic time-series ; do not divide by
4215       time-step to convert to integer:
4216       - this fixes case where externForcingPeriod is not multiple of time-step
4217          (Thanks to Christopher L. Wolfe)
4218       - this fixes case where externForcingPeriod is an odd multiple of time-step
4219         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
4220      store index of time-record which is currently loaded:
4221       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
4222       - needed for the adjoint but not yet used because of extensive recomputations;
4223         (to be fixed soon)
4224    
4225    checkpoint62v (2011/04/02)
4226    o verification/1D_ocean_ice_column added to test Ian Fenty's
4227      pkg/seaice_growth.F modifications for improving sea ice code differentiability
4228    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
4229      (new velocity statistics after changing maskInW & maskInS definition)
4230    o pkg/generic_advdiff with OBCS:
4231      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
4232      equivalent to assumption of no tracer gradient outside the OB region.
4233      This will affect the results if using obcs+biharmonic diffusion.
4234      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
4235    o pkg/obcs:
4236      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
4237      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
4238      in Interior region. No impact on solution but affects Velocity monitor stats.
4239    o pkg/ptracers (adjoint)
4240      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
4241      tape file for each tracer
4242    o model/inc/src and pkg/autodiff: add parameters that allow to turn
4243      of parts of the adjoint code at run time. For now, there are only
4244      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
4245      parameters are set in data.pkg.
4246      This is the lazy coward's version of doing this, but still useful for
4247      debugging. In order to do it right, everything needs to be moved to
4248      pkg/autodiff.
4249    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
4250      the end; this fixes the adjoint balancing code for open boundaries.
4251    o pkg/ctrl:
4252      - change behavior of xx_${varname}period to be analogous to exf-conventions:
4253        xx_${varname}period =   0.,  means time-independent control part
4254        xx_${varname}period = -12., means one-year-periodic monthly control part
4255      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
4256        clean up ctrl_init a little, remove unused variables
4257      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
4258      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
4259    
4260    checkpoint62u (2011/03/15)
4261    o model/src:
4262      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
4263        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
4264      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
4265        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
4266    o pkg/ctrl/obcs/ecco:
4267      - remove obsolete, unused, and partially broken code:
4268        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
4269        ALLOW_CTRL_OBCS_BALANCE
4270      - put a stop statement into ecco/cost_obcsvol.F, but also add
4271        cost_obcsvol to ecco_ad_diff.list
4272    o pkg/ecco: fix counting cost function contributions for obcs (code
4273      by Matt M.) and diffkr for diagnostics
4274    o pkg/ecco, pkg/ctrl, pkg/grdchk:
4275      add cost penalty terms for initial uvel, vvel, eta controls
4276      and I/O for prior error files
4277    o pkg/mdsio:
4278       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
4279       (new argument) to check for tiled file in mdsioLocalDir : this fix the
4280       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
4281    o pkg/ctrl:
4282     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
4283       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
4284       unused and superfluous variables
4285     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
4286    o pkg/ecco
4287     - enable adjoint of Stevens OB
4288    o pkg/ctrl/ecco/grdchk:
4289      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
4290        Fortunately, we do not have any tests for the numerous cpp-flagged
4291        option of "obcs as control parameters" so we will never know
4292        if this is an improvement (but at least now things compile).
4293      - remove an obsolete initialization from ecco_cost_init_barfiles.F
4294      - fix some problems within never used ifdefs to make the code compile
4295    o pkg/obcs:
4296     - Refine Interior mask definition to work with more complex OB (e.g.
4297       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
4298       read in Interior mask from file. Check if Interior mask is consistent
4299       with OB list of indices.
4300    o pkg/seaice
4301     - beginning code for a seaice tracer package,
4302       but currently only used for seaice age: SEAICE_AGE
4303       SEAICE_num = 4
4304       iTracer = 1: area-weighted ice age
4305               = 2: volume-weighted ice age
4306               = 3, 4: template for one-year vs. multi-year ice
4307       data.seaice has new namelist SEAICE_PARM03 for arrays related to
4308       SEAICE_num
4309    
4310    checkpoint62t (2011/03/05)
4311    o pkg/obcs:
4312     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
4313       then normal component. This ensures that the normal component is set
4314       correctly even when it conficts with tangential setting from an other OB.
4315       Affects results of test-experiment seaice_obcs: update the output.txt
4316    o pkg/obcs:
4317     - add code to monitor statistics of dynamical fields at OB.
4318     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
4319       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
4320       - change default: balance the Net inflow through all OB (instead of balancing
4321         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
4322     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
4323       to match Nortern OB inflow (OBCS_balanceFacN=0).
4324    o pkg/seaice:
4325     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
4326    o pkg/seaice (seaice_growth v 1.113):
4327     - reverting seaice_growth to v 1.111 in order to have code with exact bit
4328       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
4329       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
4330       runtime flag SEAICEareaFormula is kept but is inactive
4331    o model/src:
4332     - add new param to scale curvilinear grid distance and area when using
4333       a different sphere radius from the grid-files.
4334     - test/check multi-threads EXCH applied to local variable (cg2d_x)
4335    o adjoint:
4336     - enable adjoint of Stevens OB
4337     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
4338       (a bit delicate because of potentially modified adj. common block structure;
4339       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
4340    
4341    checkpoint62s (2011/02/15)
4342    o pkg/seaice (seaice_growth v 1.112):
4343     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
4344       computing the ice cover tendency from effective thickness tendencies. Include
4345       Ian Fenty's formula.
4346     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
4347       SEAICEareaFormula.
4348     - simplify notations for the various d_HEFF/d_AREA terms.
4349    o pkg/gmredi:
4350     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
4351       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
4352       add a verification test-run (front_relax.bvp) to test GM_useBVP.
4353    o pkg/seaice (seaice_growth v 1.111):
4354     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
4355     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
4356       also melt ice.
4357    o pkg/seaice:
4358     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
4359     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
4360    o pkg/cheapaml:
4361     - from Nico Wienders: New version of this package.
4362    o pkg/flt:
4363     - add CPP options to prevent floats to re-enter the opposite side of
4364       a periodic domain (default: keep periodicity)
4365    o pkg/gmredi:
4366     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
4367       (needed for multi-dim advection).
4368     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
4369    o model/src:
4370     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
4371    o tutorial_tracer_adjsens
4372     - extend to NLFS and replace maskC by hFacC
4373       (change reference output accordingly)
4374    
4375    checkpoint62r (2011/01/24)
4376    o testreport:
4377     - add option -deloutp (-do) to remove output file after successful run
4378     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
4379       extract exact list of procs from this file ; adjust COMMAND by
4380       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
4381    o pkg/ecco: replace old ineffective way of penalizing deviations from
4382      first guess (of obcs) with code by Matt Mazloff
4383    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
4384      exf/cal
4385      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
4386        and handle case of obcs?period == 0
4387        Not affected by these changes: There is still an inconsistency in
4388        the computation of start/endrec for the obcs variables for ALLOW_CAL
4389        defined (see comment by Menemenlis, 7-Mar-2003)
4390      - make S/R ctrl_get_gen_rec return something meaningful even if
4391        ALLOW_CAL is not defined
4392      - ctrl_getobcs?: simplify code so that it does not need to use
4393                       S/R exf_swapfields
4394    o testreport:
4395       allow to test MPI with different number of processors for each experiment:
4396       create file "SIZE.h.mpi" in each build dir.
4397       Note: update of "-command" argument not yet implemented.
4398    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
4399      alleviate the need for additional 3D tapes when using
4400      the non-inear free surface in the adjoint. This is done
4401      by adding an 'update' of hfacc etc. to their current
4402      value at the beginning of forward_step.F.
4403    o pkg/seaice
4404      seaice_lsr: move stress-divergence computations out of outer pseudo-
4405      timestepping loop
4406    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
4407      up, so that the calls of the ctrl_* subroutines are really at the end
4408      of the routine.
4409    o pkg/gmredi:
4410      allow to specify a 2-D horizontal map and a 1-D vertical profil
4411      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
4412    o pkg/seaice:
4413      move lsr iterations from seaice_dynsolver to seaice_lsr.
4414    o pkg/seaice:
4415      reduce memory footprint of seaice mutldim advection tapes,
4416      by using a 2D tape independent of the generic_advdiff ones,
4417      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
4418    
4419    checkpoint62q (2010/12/29)
4420    o model/src:
4421      - check horizontal grid-spacing for unset or zero/negative values.
4422      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
4423    o pkg/flt:
4424      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
4425      - precision of input and output files set according to readBinaryPrec
4426        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
4427      - initial float position from tiled file was not converted to index space
4428        (looks like a bug): fixed to make it similar to initial pos. global file.
4429    o global_ocean.cs32x15:
4430       change SIZE.h of AD set-up to get same tiling as with MPI.
4431       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
4432    o model/src:
4433       add flag to control printing of domain fields (bathymetry, hFac ...) in
4434       ini_mask_etc (call to plot_fieds_xy*).
4435    o pkg/thsice:
4436       if useEXF, some forcing fields are not valid in overlap: fixed by computing
4437       over the interior only + apply EXCH at the end (like with SEAICE advection).
4438    o pkg/mdsio:
4439      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
4440        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
4441      - change barrier call for safe multi-threads access to 3-D shared buffer.
4442      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
4443      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
4444        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
4445    o pkg/flt:
4446      - add fourth-order Runge-Kutta integration
4447      - add basic exch2 support (only 1 facet supported so far!)
4448    o pkg/mdsio+rw:
4449      new S/R to read local (or tile independent) vector (read counterpart of
4450       mds_writevec_loc, and front-end write_glvec_rl/rs).
4451    o global_ocean.cs32x15: additional input_ad.seaice experiment
4452        that uses pkg/seaice rather than pkg/thsice.
4453        (using multidim advection for seaice)
4454    o towards more F95 syntax for array specification in namelist:
4455      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
4456        of all verification experiments.
4457           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
4458          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
4459      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
4460    o global_ocean.cs32x15: additional input.seaice experiment
4461        that uses pkg/seaice rather than pkg/thsice.
4462    
4463    checkpoint62p (2010/12/17)
4464    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
4465        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
4466    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
4467        allow for use of multim. advection in seaice adjoint.
4468    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
4469      - first attempt to close budgets by taking into account the freshwater
4470        flux implied by the sublimation of snow and ice. So far only the
4471        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
4472        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
4473    o eesupp/src:
4474      new S/R with new option (NML_EXTENDED_F77) to change array specification
4475      from F95 standard to commonly accepted extended F77 form.
4476      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
4477      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
4478      for less tolerant f77 compiler (e.g., pgf77, g77).
4479    o globalFiles:
4480      commented out in parameter file "data" since it's not safe with MPI
4481      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
4482      in this case); no longer commented out in restart test (tst_2+2).
4483    o add adTapeDir to specify a special directory where adjoint tapes are
4484      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
4485      and cannot be used together with mdsioLocalDir.
4486    o nesting pkgs:
4487      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
4488      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
4489      - add parameter files + utils dir + output from short run on beagle.
4490    o pkg/seaice:
4491        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
4492    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
4493      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
4494    
4495    checkpoint62o (2010/11/25)
4496    o pkg/exf:
4497      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
4498    o pkg/seaice:
4499      - seaice_ocean_stress: split a loop for better vectorization of the
4500        adjoint code
4501      - seaice_growth.F: fix bug in conservation of freshwater connected to
4502        capping of heff, put contribution into d_HEFFbyNEG
4503      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
4504        by something more sensible (parameters that are what their name implies)
4505      - change some defaults, so that by default exf-parameters are used for
4506        things like rhoAir, cpAir,latent/sensible heat parameters, in order
4507        to reproduce the old results, many data.seaice now contain funny values
4508        for cpAir and latent heat of sublimation
4509    o packages_readparms.F: move exf_readparms up in line so that
4510        exf-parameters are visible for other packages (e.g. seaice)
4511    o debugMode & debugLevel=2:
4512      - differentiate between debugMode & debugLevel=2:
4513        debugMode: controls printing of debug messages (sequence of S/R calls).
4514        debugLevel: controls printing of algorithm intermediate results and stats.
4515      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
4516        => allows to print debug-stats without all sequence of call messages.
4517      - switch control of debug print from debugLevel to debugMode in many S/R.
4518    o pkg/obcs (obcs-sponge):
4519        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
4520        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
4521    o pkg/generic_advdiff:
4522      - record overlap minimum size for each advection scheme;
4523      - refine criteria on overlap minimum size;
4524      - check and stop (in gad_check) if overlap size is too small.
4525    o pkg/obcs:
4526      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
4527        once, in ptracers_implicit.F)
4528      - with seaice: remove test on empty file name in obcs_apply_seaice (always
4529        apply OB values when tile has OB)
4530    o model/src, coriolis setting:
4531      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
4532        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
4533        files (selectCoriMap=3) with any grid.
4534      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
4535    o pkg/seaice/seaice_growth.F:
4536        a few cosmetic changes that reduce the number of lines of code
4537    o pkg/obcs: add boundary conditions following Stevens (1990)
4538      - the code follows old MOM/NAOSIM code
4539      - so far it is only implemented for the eastern and western boundaries
4540        and NOT for pTracers
4541    o pkg/rbcs:
4542      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
4543        beginning of the first rbcs forcing period.
4544      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
4545        offline package, i.e., one file per time, labeled by iteration number;
4546        deltaTrbcs sets the timestep with which the data was generated;
4547        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
4548      - rbcsForcingCycle=0 makes forcing non-cyclic.
4549      - make arithmetic safe for negative times and odd forcing periods.
4550    
4551    checkpoint62n (2010/11/09)
4552    o pkg/seaice:
4553        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
4554    o pkg/obcs:
4555       New S/R to copy tracer value from the OB location to narrow band region
4556        (width = same as overlap) beyond the OB: preserve OB value (needed for
4557        high-order scheme) which were overwritten by EXCH call if in overlap
4558        region. Applied to theta, salt, ptracer and advected seaice variables.
4559       With seaice: use maskInC in similar way as in gad_advection.F,
4560        in seaice_advection.F and advect.F.
4561       Update output of experiment seaice_obcs and change exp4 to test OBCS with
4562        4th order Adv.Scheme. for pasive salt and ptracer.
4563    o tools/genmake2:
4564      - when looking for an optfile (not specified), only search for Fortran compiler
4565        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
4566      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
4567        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
4568      - set default for CPP to "cpp -traditional -P" (was the case without specifying
4569        an optfile, but otherwise default was just "cpp".
4570      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
4571      - when "CC" is not set in the optfile, look for possible C compiler
4572        (instead of just setting CC=cc)
4573      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
4574        => add a ".F" to ".o" rule for source files with no "#include" (such as
4575           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
4576      - move gfortran before g77 in list of possible Fortran compiler (consistent
4577        with reference compiler switch from g77 to gfortran)
4578    o pkg/seaice:
4579      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
4580        seaice_check that stops the model, when the CPP flag is used.
4581      o seaice_growth.F: make capping of ice volume conserving by returning the
4582        capped ice as freshwater to EmPmR. This does not change the verification
4583        experiments but will change runs where the capping is acutally active
4584    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
4585      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
4586         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
4587         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
4588    o tools/genmake2:
4589      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
4590      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
4591      - clean previous genmake log files before anything else.
4592      - change Makefile to remove testreport log files (*.tr_log) and genmake log
4593        files only with "CLEAN" target (instead of "Clean");
4594    o pkg/generic_advdiff:
4595      Change OBCS in multiDim advection (gad_advection.F):
4596       Use maskInC to prevent intermediate update of tracer-field in OB regions,
4597       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
4598       which were applying future time-step OB values.
4599      This way, all explicit calculations use current-time-step OB values
4600       (simpler and more consistent).
4601      Affects results when set-up uses time-varying OBC and multi-dim advection;
4602       update output of experiment seaice_obcs.
4603    o pkg/seaice:
4604      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
4605       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
4606         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
4607      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
4608       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
4609       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
4610    o pkg aim (2010/10/26):
4611      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
4612        formulation with obliquity, eccentricity, ... as run-time parameters,
4613      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
4614        upward shortwave radition at the surface (all-sky and clear-sky).
4615    o pkg/obcs:
4616      - writing sections with globalFiles=T does not work: switch to tiled-files
4617        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
4618      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
4619      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
4620    
4621    checkpoint62m (2010/10/21)
4622    o pkg/seaice: vectorize seaice_solve4temp.F
4623      - move iterations loops outside of i/j-loops
4624      - requires 2D arrays for TB and effConduct
4625      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
4626        modified in this routine
4627      - a little bit of clean up, adjusting indentation, etc.
4628      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
4629        performance and '**TWO' by '**2' (because TWO is a float),
4630        replaced ONE, ZERO
4631    o eesupp/src:
4632       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
4633    o pkg/seaice/seaice_growth.F
4634      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
4635      merging process. The merged routine has two branches, and one activates the 'evolution'
4636      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
4637      In summary, here is what the '10/10 revision' did consist of
4638        part 1: seaice_growth.F revisions 1.71 to 1.75
4639          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
4640            The emphasis here was on improving readability (e.g. by trying to use meaningful
4641            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
4642        part 1.5:
4643          - revising the lab_sea experiment to make it a more useful (i.e. stable
4644            and representative of an actual model run). This was done by generating a
4645            (winter) pickup to start from, switching back the main experiment dynamic
4646            solver from evp to lsr, having one of the experiments use the free drift solution.
4647        part 2: seaice_growth.F revisions 1.76 to 1.85
4648          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
4649          - Sorting out the various fields units and sign (set early on and reset at the end)
4650            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
4651            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
4652          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
4653            and simplifying logical expressions to further improve readibility.
4654        part 3: seaice_growth.F revisions 1.86 to 1.89
4655          - Re-organize the blocks of code more logically.
4656          - Merging the '_if.F' pieces that add something new.
4657    o pkg/thsice:
4658      - vectorize thsice_solve4temp and thsice_get_exf.
4659        Problem: thsice_solve4temp has an unvectorizable statement that
4660        might also be problematic for TAF
4661      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
4662        does not change the verifcation experiment, but will change all
4663        experiments that have this flag undefined (not tested in verification);
4664        a little reorganization to save a few 2D fields and recomputations
4665      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
4666      - 2nd step:  fix some store dirs
4667        o seems to work somewhat, i.e. using ifort but not g77
4668        o likely cause are incomplete init. or recomputation
4669        o start verification/global_ocean.cs32x15/input_ad.thsice
4670    o pkg/obcs: add support for exch2
4671      - the position of the boundary and prescribed values are specified using
4672        a global domain with exch2 facets stacked
4673        - in x for N,S boundaries (like W2_mapIO=-1)
4674        - in y for E,W boundaries (so E,W boundaries do not overlap)
4675    o pkg/mdsio: add support for writing global sections with exch2
4676        file layout is as for obcs described above:
4677        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
4678        - for y-z sections, facets are stacked in y
4679    o pkg/thsice:
4680       - change a few routines for better vectorization: thsice_albedo.F,
4681         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
4682         not affected, but in particular the latter routine has changed
4683         dramatically (not necessarily easier to read now).
4684       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
4685       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
4686    o verification/lab_sea:
4687      - overhaul of the forward model experiments. The main motivation
4688        for this revision is that lab_sea has proven quite fragile (when
4689        changing the sea-ice code, and switching platforms) to a point
4690        when failures were very hard to attribute to specific code problems.
4691      - the suspected reason for this fragility is noise amplification by evp so,
4692        to start with, we decided to replace evp with lsr in the main experiment.
4693      - the input.lsr experiment thus became obsolete and was removed.
4694      - it was replaced with the input.fd experiment that uses an
4695        analytical "free drift" solution as the ice velocity field.
4696      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
4697        will hopefully allow us to discriminate problems due to dynamic solvers
4698        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
4699        us to test additional options, along with the salt plume package.
4700      - Finally a pickup was generated (at the end of a one year run) to
4701        make the tests more representative of an actual model run. Previously
4702        the tests starting point was a 1m thickness of ice everywhere.
4703    o pkg/seaice:
4704      - introducing S\R seaice_freedrift.F that compute the
4705        analytical solution to an approximate ice momentum
4706        equation (i.e. the simple stress/coriolis balance).
4707      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
4708        of the free drift velocity field, and enable its use.
4709        To actually use the free drift solution as the model ice
4710        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
4711    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
4712    
4713    checkpoint62l (2010/10/04)
4714    o pkg/seaice:
4715      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
4716      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
4717       version (with USE_ORIGINAL_SBI undef);
4718    o add hooks for new packages OASIS, the package will follow
4719      (hooks exclude the seaice pkg for now)
4720    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
4721      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
4722      rather than mdsio_readvector.F/mdsio_writevector.F, within
4723      adread_adwrite.F to read/write adjoint-related tapes to disk.
4724    o eesupp and pkg/mdsio: ALLOW_WHIO
4725      Option to write/read 2D fields to files including tiles halos.
4726      The main purpose is for adjoint related "tape I/O".
4727      The secondary purpose is for debugging phases.
4728      A word on those rather specifically intended purposes.
4729      The code was meant to be stripped down to the bare minimum.
4730      Typically, there is a unique and basic mapping to the global
4731      buffer (tile by tile, then proc by proc, then level by level), and
4732      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
4733      meant to generate user friendly outputs of various shapes and forms.
4734      Rather it is intended, for the knowledgeabale developers,
4735      to be largely independent of the many mdsio options, to allow
4736      outputs of tiles+halos in debugging phases and in adjoint runs,
4737      and to allow some flexibility in tuning (adoint) I/O depending on each
4738      file system behavior. With regard to tuning, most of the potential knobs
4739      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
4740      to specify directories, to specify the typical size of I/O calls, etc.)
4741      are not yet included, and will be added if they prove useful.
4742    o pkg/seaice:
4743       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
4744    o pkg/seaice:
4745       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
4746       code (seaice_budget_ice_if.F) which enable to recover old standard
4747       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
4748       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
4749    o model/src (rStar):
4750       use simple average (not area weighted) of rStarFac at U,V point when using
4751       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
4752       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
4753    
4754    checkpoint62k (2010/09/17)
4755    o adjoint
4756       * changed verification/global_ocean.cs32x15 ; adjoint now tests
4757         Adams-Bashforth 3 + NLFS + RSTAR
4758       * some more modifs required for ECCO-GODAE v4
4759    o pkg/seaice
4760       add SEAICE_AGE_VOL option to use volume instead of area for
4761       integrating SEAICE_AGE
4762    o model/src:
4763       first check-in of sigma & hybrid-sigma coordinate code ; also includes
4764       non-linear free-surface parts ; but pressure-gradient not yet coded.
4765    o pkg/ptracers:
4766       option for ptracer to convert Salt Relax into additional EmP.
4767        tested in exp. global_ocean.90x40x15.dwnslp (update output)
4768    
4769    checkpoint62j (2010/08/25)
4770    o pkg/ggl90:
4771       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
4772    o pkg/dic: car_flux.F, phos_flux.F
4773      - reduce number of exp-calls in order to improve performance
4774      - clean up a little (replace fields by their macros, etc., fix
4775        typo in CPP-flag)
4776    o pkg/ggl90: minor changes
4777      - GGL90diffKrS was removed --> always use GGL90diffKr
4778      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
4779      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
4780        (commented out for now)
4781      - change in max/min operations to ensure that smoothing is ok
4782      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
4783      - always use diffKrNrT as background profile (i.e. never use diffKr field)
4784    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
4785    o pkg/dic:
4786      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
4787        vectorization
4788      - small bug fix in insol for the unlikely case of a cartesian grid
4789      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
4790        + now vectorize, which also removes adjoint recomputations;
4791        + replace integer maksp1 by _RL maskp1
4792        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
4793    
4794    checkpoint62i (2010/07/21)
4795    o pkg/flt:
4796      - with OBCS: stop floats which enter the OB region
4797    o model/src:
4798      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
4799        for implicit vertical advection.
4800    o pkg/seaice:
4801     - account for melting in seaice age evolution.
4802     - remove double counting of seaice ridging effect on seaice age.
4803    
4804    checkpoint62h (2010/06/18)
4805    o pkg/exch2:
4806     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
4807    o tools/genmake2
4808      - remove "-pdefault" option: redundant with the use of "packages.conf";
4809      - remove file pkg/pkg_default : set the default as a pkg group
4810        ("default_pkg_list") defined in pkg/pkg_groups;
4811      - fix for case pkg/pkg_depend is missing (was hanging before);
4812      - add option "-pgroups" to specify a different pkg_groups than the default.
4813    o verification/adjustment.cs-32x32x1:
4814       add a "minimal" set-up test (code_min & input_min) which only compiles
4815       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
4816    o tools/genmake2
4817      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
4818      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
4819    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
4820      files are nearly the same anyway.
4821      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
4822       - redefinition of tau(i,i) (by a factor of ustar)
4823       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
4824       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
4825       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
4826       - replace
4827         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
4828         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
4829         by
4830         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
4831         (changes results)
4832       -> exf_bulkformulae v1.22,
4833          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
4834          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
4835                    output.txt 1.63
4836           offline_exf_seaice: output.seaicetd.txt 1.7
4837           seaice_obcs: output.txt 1.10)
4838      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
4839       -> exf_bulkformulae v1.23,
4840          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
4841          and global_ocean.cs32x15.icedyn (only 11 matching digits)
4842      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
4843    o adjoint of exch-1:
4844     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
4845       (note: was already like this when using EXCH-2) and remove flow dir
4846       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
4847     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
4848     - update pkg/exch2 diff list.
4849    
4850    checkpoint62g (2010/05/19)
4851    o eesupp/src (exch-1):
4852     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
4853       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
4854       (renamed to exch1_*rx_cube.F).
4855     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
4856       to call new exch1 S/R ; update Makefile and .cvsignore.
4857     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
4858       exch2_xy_rx later)
4859      Note: after updating your code, need to run "make clean" in eesupp/src
4860    o test experiment bottom_ctrl_5x5:
4861       new output_adm.txt with fewer grdchk & less monitor output.
4862    o model/src:
4863      remove the call to ini_cori in initialise_varia.F (just keep the usual one
4864       in initialise_fixed.F). More consistent with coriolis & horizontal grid
4865       beeing treated in the same way (ini_grid is not called a 2nd time).
4866    o pkg/exf:
4867      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
4868      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
4869      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
4870      - cosmetic changes to exf_bulkformulae.F to make it look more like
4871        exf_bulk_largeyeager04.F
4872    o eesupp/src (exch-1):
4873      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
4874      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
4875        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
4876        (even without using MPI).
4877      - Message mode: move RecvAck setting (indicator of buffer being ready)
4878        from send_put to recv_get S/R (was useless before, but not sure if
4879        it's much more useful now);
4880      - Switch the order of sync: MPI-proc 1rst and then threads;
4881      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
4882      - fix AD code for communication mode ='get' (but not used).
4883    o model/src:
4884      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
4885      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
4886    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
4887    o pkg/ctrl: require a specific set of control variables and exf-flags for
4888      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
4889    o model/src:
4890     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
4891       1rst forward sweep, to avoid over-writing output files during recomputations
4892       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
4893     b) 2nd version:
4894      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
4895      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
4896         writePickupAtEnd) + seaice & ptracers output;
4897      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
4898    o model/src:
4899      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
4900    o pkg/exch2:
4901      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
4902      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
4903    o pkg/autodiff & exch2:
4904      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
4905      (for now, only if ALLOW_EXCH2 is defined).
4906    o pkg/autodiff:
4907      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
4908        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
4909       + clean-up comments (_RS is not always real*4)
4910      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
4911      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
4912        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
4913    o testreport (AD-tests):
4914      no longer link files from dir "../input" (1rst link files from
4915      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
4916    
4917    checkpoint62f (2010/04/29)
4918    o model/src/the_main_loop.F:
4919      adjust store directives for seaice evp and multicategory according to
4920      pkg/ecco/the_main_loop.F
4921    o adjoint:
4922      global_sum_ad was incomplete (noted many times by many people ;)
4923      nice description by Jean U. as follows:
4924      * allreduce(var) in global_sum.F can be interpreted as
4925        reduce(sum) followed by broadcast of sum.
4926      * The adjoint of that is
4927        sum(adjoint) followed by broadcast(summed adjoint value)
4928        or in other words, allreduce(sum, adjoint vars)
4929      We were missing the sum(adjoint)!
4930      Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
4931      (noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset).
4932      The fix should produce 16-digit accuracy between
4933      single-CPU multi-tile (e.g. nSx=2, nPx=1) and
4934      multi-CPU single-tile (e.g. nSx=1, nPx-2)
4935      We'll probably change this yet again shortly
4936    o eesupp/src:
4937      - fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?)
4938    o pkg/icefront
4939      - ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving
4940        specification of addmass array based on a 2D field, which is added
4941        at bottommost wet level at each horizontal location.
4942    o model/src:
4943     horizontal grid initialisation (other than curvilinear): add code for Exch2 IO
4944     layout; (not always compatible with delX,delY setting; commented out for now).
4945    o pkg/exch2:
4946     change tile to processor setting (case nSy*nPy > 1): allows default model mapping
4947     (myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config.
4948    
4949    checkpoint62e (2010/04/15)
4950    o pkg/obcs:
4951      - fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert).
4952    o pkg/dic:
4953      -fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up;
4954        (note: not presently tested in any forward verification exp.)
4955       update tutorial_global_oce_biogeo AD output file.
4956    o pkg/exf:
4957      - account for the variation of albedo as a function of zenith angle
4958        by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h
4959    o build_options:
4960     - rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas"
4961    o pkg/dic:
4962      change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart:
4963      - use binary pickup file for restart;
4964      - initialise atmos-CO2 box from dic_pCO2 parameter;
4965      - fix multi-threaded.
4966    o pkg/rbcs:
4967     - clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ;
4968       change (+ fix IO calls) type of array RBC_mask from _RL to _RS.
4969     - add RBCS to exp4 passive tracer 01 (rbcs was previously untested)
4970       and update output.txt
4971    o pkg/kpp:
4972     - add diagnostics for KPP non-local flux of Temp, Salinity and pTracers;
4973     - change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS
4974       (= ratio of KPP non-local (salt) flux relative to surface-flux) when
4975       using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat ');
4976     - change pkg/offline to read-in average KPPghat*KPPdiffKzS from file
4977       KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile).
4978    o pkg/offline:
4979      fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor
4980      (bug was added in version 1.10 on 2007-08-23).
4981    o pkg/offline:
4982      - no need to specify periodicExternalForcing, etc ... to use offline pack
4983      - offline input files no longer just single prec --> parameter offlineLoadPrec
4984    o verification/lab_sea:
4985      change AD test to multi-tile setup and update all 4 AD output.
4986      NOTE: while cost function values remain very similar,
4987      gradients are very different, although gradient checks are self-consistent
4988      Should try to get to the bottom of this (cost function summation order?)
4989    o pkg/dic:
4990      in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid
4991      a weakness of TAF that drops part of double precision in log10 derivative.
4992      <= changes removed since problem has been fixed in current TAF version 1.9.71
4993      update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo.
4994    o pkg/ecco:
4995      add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F
4996      update all 4 lab_sea AD output.
4997    
4998    checkpoint62d (2010/03/22)
4999    o build_options:
5000      remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles.
5001    o remove unbalanced quote (single or double) in commented line of source code
5002      (may cause some warning with some preprocessor/makedepend versions).
5003    o pkg/seaice:
5004      fix seaice_model.F for adjoint (gael) and update AD results of experiments
5005       lab_sea (std + evp + noseaicedyn) and offline_exf_seaice.
5006    o testreport:
5007      add option '-runonly' (short: '-ro') to just do the run part (without make).
5008    o eesupp: remove JAM communication code (obsolete).
5009    o add option to genmake2 & testreport to switch "_RS" type to "real*4"
5010      (if allowed in CPP_EEOPTIONS.h); update default CPP_EEOPTIONS.h and return
5011      to default CPP_EEOPTIONS.h for exp. inverted_barometer & solid-body.cs-32x32x1
5012      (update also the output).
5013    
5014    checkpoint62c (2010/03/02)
5015    o tools/build_options :
5016       move (some) old optfiles from build_options/ to build_options/unsupported/
5017    o model/src and pkg/exf
5018       surface relaxation -- separating data and data.exf options
5019       The point is to ensure that we specify the surface relaxation
5020       either in data or in data.exf (but not half and half) and to
5021       avoid an accidental relaxation to 0 (which happened if a time
5022       scale was specified but the file name was left empty)
5023    o model/src model/inc and pkg/mom_common
5024       ALLOW_3D_VISCAH/ALLOW_3D_VISCA4 => 3D specification of Viscosity
5025       => addition to the viscosity field as computed by others schemes
5026    o tools/build_options:
5027      - rename "_generic_mpi" -> "+mpi_generic" (like other "+mpi" optfile)
5028        but keep the former optfile for few weeks for smooth transition
5029    o pkg/ecco
5030      - allow user defined cost function contributions
5031         CPP: ALLOW_USERCOST_CONTRIBUTION
5032         USAGE: compute contributions in cost_usercost_all.F
5033      - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
5034          the two options are complementary.
5035    o pkg/smooth
5036      - migration from contrib to the main repository
5037    
5038    checkpoint62b (2010/01/26)
5039    o pkg/monitor:
5040      - change back mon_printstats_rl.F & mon_stats_rl.F and add a stop
5041        (in case someone forgot to update customized pieces of code)
5042    o nonHydrostatic:
5043      - add Non-hydrostatic free-surface form (selectNHfreeSurf=1)(not fully tested);
5044      - add a simple 2-D experiment (short_surf_wave) to test it.
5045    o pkg/icefront:
5046       adding the shell of, and the hooks to, a new package that
5047       will model melting and freezing of vertical glacier ice fronts
5048    o momentum:
5049      add diagnostics of momentum tendency from Hydrostatic pressure gradient
5050       (without surf.pressure term: would need a 2nd filling since implicit term).
5051    o add 3 "_d 0"s so that fizhi compiles with xlf on iblade, and replace
5052      two " &end" by " &" (in fizhi-cs-*) because S/R NML_SET_TERMINATOR
5053      cannot deal with the former
5054    o cleaning:
5055      - remove all (except OpenAD) old TLM output from results_ad dirs.
5056      - remove unused S/R (MDSWRITEMETA, DIAGNOSTICS_ADD2LIST, old DFILE IO S/R)
5057      - comment out maskH definition (replaced by maskInC)
5058    o pkg/monitor:
5059      - change mon_printstats_rl.F & mon_stats_rl.F (were similar to mon_writestats_rl
5060        & mon_calc_stats_rl) to be the RL equivalent of mon_printstats_rs & mon_stats_rs.
5061    
5062    checkpoint62a (2010/01/15)
5063    o model/src:
5064      - bottom pressure diagnostic: correct for r* (when nonlinFreeSurf >= 4)
5065    o pkg/diagnostics:
5066      - add optional level number diagnostics (i.e., level number to be define
5067        explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".
5068      - strictly check for valid parser-code(10) ;
5069      - check if adding diag to the list from the right place.
5070    o pkg/longstep:
5071      - change parameters and fix tracer conservation with rstar/nonlinear free surface
5072    o diagnostics:
5073     - in all pkgs, replace remaining calls to old S/R DIAGNOSTICS_ADD2LIST with newer
5074       S/R DIAGNOSTICS_ADDTOLIST ; fix seaice VICE diagnostics.
5075    o pkg/diagnostics:
5076     - Add option for writing vertical integral (sum of selected levels) of an output
5077        field instead of writing output field levels. Activate this option on a per
5078        output-file basis, by setting the 2nd character of fileflag to 'I'.
5079     - Add field-specific information relative to level integral in 3rd postion
5080        of parser diagnostics code (gdiag): " "=cumulate levels, "R"=integrate
5081        vertically (x level-thickness x hFac), "r"=same but without hFac.
5082    o do_the_model_io:
5083      - pass end-of-model-run flag as argument, from forward_step to diagnostics_write:
5084        in case useSIGREG, will write (averaged) diagnostics (if dumpAtLast) before
5085        writing pickups and stopping.
5086    o pkg/diagnostics (for now, only with mdsio):
5087      - write time information to meta file (and modify accordingly rdmds.m) :
5088        time-averaged diagnostics output: write starting and ending time of the
5089        time-averaging interval ; snap-shot diagnostics output remains unchanged;
5090    o pkg/timeave:
5091      - S/R TIMEAVE_NORMALIZ: change size of cumulated-time array (was previously
5092        always Nr), now assumed to be equal to number of levels of averaged field;
5093        only used for DIC_COST monthly mean arrays: this fixes dic_aver_final.F
5094    o pkg/sbo:
5095      - fix ocean bottom pressure global-average & 2-D time-ave output (was
5096        neither initialised nor filled).
5097      - add starting iteration in suffix of global-average output file
5098        (to avoid over-writing the file after a restart)
5099      - use standard MDSIO pkg S/R instead of SBO_WRITEVECTOR (fix byte-swap Pb).
5100    o time-average:
5101      - use simple cumulative-time array (no k index) in all pkgs: {PKG}_timeAve(bi,bj)
5102        (pkgs: aim_v23, bulk_force, dic, gmredi, kpp, land, ocn_compon_interf,
5103         ggl90, my82, opps, pp81, ptracers, sbo, seaice, shelfice, thsice)
5104        this fix DIC_COST cumulative-time array (previously: bi,bj,k)
5105      - fix 1rst call (nIter0) snap-shot output and accumulation (pkg/shelfice)
5106      - fix missing accumulation for pkg/opps.
5107      - cumulate fields only if doing time-ave output ({PKG}_taveFreq > 0)
5108         (pkgs: ptracers, kpp, ocn_compon_interf, ggl90, my82, pp81);
5109      - fix initialisation of time-ave vars and do only full time-step increment
5110        (i.e.: no first & last "half time-step") (pkgs: ggl90, my82, opps, pp81);
5111    o pkg/layers:
5112      - use standard RW pkg S/R to write the output
5113        and remove local write_fld version (which had a problem).
5114      - use simple cumulative-time array (no level index) to fix time-ave S/R calls.
5115      - fix LAYERS_CALC argument list.
5116    o pkg/timeave:
5117      - store cumulative-time in a simple tiled array (drop the level index)
5118      - add new S/R (TIMEAVE_NORMALIZE) which uses simple cumulative-time array.
5119    o pkg/ocn,aim_compon_interf
5120      - changes for multi-threaded coupled run. (tested with ifort-11 on danton)
5121    
5122    checkpoint62  (2009/12/23)
5123    o switch on useOBCSbalance in tutorial_plume_on_slope exp. and update output.
5124        (was not previously tested in any other exp.)
5125    o pkg/monitor:
5126      - clean-up _RL/_RS version: add specific S/R for statistics with mask & volume:
5127        mon_writestats_rl/s,F mon_calc_stats_rl/s.F ; will keep the old one
5128        (mon_printstats_rl/s,F mon_stats_rl/s.F) just for bare statistics.
5129      - use hFac & 2-D mask (instead of 3-D mask + hFac in previous mon_stats_rl.F).
5130      - change del2 calculation.
5131      - use interior masks (instead of maskH, <- to be remove).
5132      - shorter monitor suffix for forcing stats ("forcing" instead of "extforcing").
5133    o mask & obcs:
5134      - define 2-D "interior" masks (i.e., zero beyond OB) at 3 locations (C, W & S).
5135      - move global area computation from ini_masks_etc.F to ini_linear_phisurf.F
5136        (called after packages_init_fixed)
5137    o pkg/obcs:
5138      - move bi,bj loops into obcs_calc, so obcs_prescribe_read is called only once.
5139        Fixes bug in obcs+exf with nSx*nSy.GT.1
5140      - fix multi-tile handling in obcs balance code
5141    o nonHydrostatic:
5142      - Implement AB-3 for non-hydrostatic vertical momentum ;
5143        (change ordering of var. stored in pickup file when using NH)
5144      - move NH code from solve_for_pressure.F to 2 new S/R: PRE_CG3D & POST_CG3D.
5145      - add 2-D field to store Hydrostatic Surface Pressure adjusment from cg3d_x
5146        (in prep. for new NH free surface form).
5147    o pkg/obcs:
5148      add files & OB-variables for wVel (Non-Hydrostatic) with useOBCSprescribe
5149    o model/src:
5150      fix 2-D solver initialisation for deep-atmosphere (p-coord) with topography
5151    
5152    checkpoint61z (2009/12/01)
5153    o nonHydrostatic:
5154      Fix missing vertical flux of vert. momentum near surface (k=1). This fixes
5155        a spurious source of energy in simple baroclinic adjusment test case.
5156      Update all non-hydrostatic exp output.
5157    o model/src (3-d solver):
5158      Change again 3-D solver free-surface RHS term when exactConserv=T:
5159        simpler, consistent with exactConserv, and works with implicDiv2Dflow < 1
5160        (which was not the case with previous formulation).
5161      To recover previous version, just reset "oldFreeSurfTerm" to previous value.
5162      Affects results of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW.
5163    o nonHydrostatic:
5164      - compatible with implicDiv2Dflow < 1 ; + implement implicit factor
5165        for Non-Hydrostatic pressure gradient (similar to implicSurfPress).
5166      - change 3-D solver to work with r* (for now, only with linear free-surf.)
5167      - add few debug diagnostics (cg3d_x, residual)
5168    o model/src:
5169      fix missing EmPmR in 3-D solver RHS (was in cg2d_b but missing in cg3d_b).
5170        update output of exp. global_ocean.cs32x15.viscA4
5171    o update output of exp. global_ocean.cs32x15.icedyn after removing
5172      #define SEAICE_OLD_AND_BAD_DISCRETIZATION from SEAICE_OPTIONS.h
5173    o add entry points for Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
5174    o mnc: add horizontal grid coordinates (XC,YC) and (XG,YG) to netcdf output
5175      for complex grids, for now only to "state", "adstate", "adexf", "adseaice"
5176    o model: add Christopher Wolfe's implemetation of the single reduction cg2d
5177      (d'Azevedo, Eijkhout, and Romine, 1999) with CPP-flag ALLOW_SRCG and
5178      runtime flag useSRCGSolver. Modify verification experiment global_with_exf
5179      to test this code
5180    o pkg/cd_code:
5181      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
5182       C-grid momentum. D-grid velocity used to be stepped forward in time with
5183       Adams-Bashforth only on surface pressure term. Tests show that using AB on
5184       D-grid coriolis term improves stability (as expected from CD-scheme paper).
5185      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
5186      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
5187       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
5188       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
5189      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
5190           global_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
5191    o pkg/obcs:
5192     - fix bug in initialisation (broken since Oct 1rst modification)
5193       for useOBCSprescribe without useEXF.
5194    
5195    checkpoint61y (2009/11/15)
5196    o pkg/seaice
5197     - change (once again) the discretization for the evp solver: rather than
5198       squaring the averages of strain rates, average the squares to give
5199       a better approximation to VP behavior (in simple test); this breaks
5200       verification experiments that use EVP (lab_sea and lab_sea.hb87)
5201        --> update outputs
5202    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
5203      to improve vectorization of adjoint code on TARGET_NEC_SX
5204    o verification/vermix:
5205      - change vermix to a more "classical" 1d column with high vertical
5206        resolution, seasonal heat flux forcing and constant wind forcing
5207        --> update outputs
5208    o pkg/seaice
5209     - fix diagnostics of principal stress components for EVP
5210     - add optional diagnostics of non-linear convergence for LSOR solver
5211     - make maximum zeta a runtime parameter
5212    o model/src (3-d solver):
5213      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
5214       which consisted in removing the Surf. Non-Hydrostatic pressure from the
5215       whole column and adding it to Eta (inspired from Casualli, 1999):
5216       Only affects 3-D solver initial guess and only if using ExactConserv,
5217       but tests did show a degradation of solver convergence. For this reason,
5218       decide to disable this piece of code.
5219       to recover previous version, just set zeroPsNH = exactConserv (line 78).
5220      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
5221    o pkg/ggl90:
5222     - fix previous modif (unfortunatly has not been documented here).
5223    o pkg/seaice/autodiff:
5224     - add CPP flag to include clipping of zeta in EVP code;
5225       although clipping of zeta is not necessary for EVP and not recommended
5226       it was done by default, now clipping is disabled by default
5227     - modify computation and store zetaC/Z in seaice_evp for TAF
5228     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
5229     - change seaice_calc_viscosities/strainrates for better
5230       vectorization after AD by TAF
5231     - rearrange common blocks in SEAICE.h once again for easier dumps of
5232       adjoint output, adjust adcommon.h and g_common.h
5233     - change flux form of default advection scheme for better vectorization
5234       of adjoint code
5235     - modify lab_sea/input.lsr to test the flux form of default advection
5236       scheme
5237    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
5238      transition in checkpoint61r)
5239    
5240    checkpoint61x (2009/10/19)
5241    o adjoint: adding two new verification experiments
5242      * tutorial_global_biogeo: an online dic sensitivity experiment
5243        (work with G. Forget)
5244      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
5245        (an update of the Dutkiewicz et al., 2006 paper)
5246      Both use the same CO2FLUX cost function, but different controls
5247      Gradient checks look good, but some recomp. could still be traightened out
5248      Should add xx_dic control variable to test at some point
5249    o model/src:
5250      add run-time parameters to check and/or mask initial Temp & Salt
5251    o pkg/ptracers:
5252      apply zonal filter (if used) to all passive tracers
5253    
5254    checkpoint61w (2009/10/12)
5255    o adjoint:
5256      * update and finish work on adjoint of dic package (G. Forget)
5257      * start adjoint of offline package
5258      * bug fix for cube-sphere TLM code (active_file_g.F)
5259    o tutorial_global_oce_optim:
5260      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
5261      and add SIZE.h_mpi for MPI testing
5262    o pkg autodiff
5263     - fix bug in autodiff_restore
5264     - make genmake2 remove comments and empty lines from ad_input_code.f in
5265       order to reduce file size (new script file remove_comments_sed)
5266    o allows to specify vertical profile of vertical viscosity (viscArNr)
5267    o pkg autodiff
5268      autodiff_ini_model_io: comment out writing of grid information to netcdf
5269      files, because at this time the grid fields are a bunch of zeros
5270      (this is analogous to ini_mnc_vars.F)
5271    o pkg seaice/autodiff:
5272     left-over from removing the 3-time-level fields:
5273     - small rearrangement of common blocks (SEAICE.h)
5274     - fix field declaration in order to get meaningful output in
5275       adseaice.*.nc (adcommon.h)
5276    o pkg obcs:
5277     - go through NH code only if nonHydrostatic=T
5278     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
5279     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
5280       => Update output of experiment seaice_obcs
5281     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
5282     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
5283     - fix restart for useOBCSprescribe + useEXF
5284    o pkg ctrl
5285     - make obcs as control parameter work also with useSingleCPUio
5286     - replace a few sny and snx by Ny and Nx to be consistent with
5287       ctrl_set_globfld_x/yz.F
5288    o pkg seaice
5289     - re-introduce global field frWtrAtm for the case of
5290       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
5291     - catch the case of an empty filename in seaice_cost_init_fixed.F
5292    o pkg ecco:
5293     - small bug fixes in the_main_loop
5294      . fix order of monitor arguments
5295      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
5296      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
5297        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
5298     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
5299       imbalance diagnostics for wmean_h/sflux = 0
5300     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
5301     - catch the case of empty filenames in ecco_cost_init_fixed.F
5302       and ecco_readparms.F
5303     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
5304       to make this statement meaningfull in ecco_cost_weights.F
5305    o pkg zonal_filt:
5306      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
5307      - when using rStar, filter uVel*hFacW instead of uVel
5308       (tested without topography: fix a Pb of growing instability with NLFS)
5309    o pkg/aim/thsice:
5310     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
5311      (works as SST restoring)
5312    o pkg/thsice:
5313     -add specific parameter for salt restoring in slab mixed-layer
5314       (by default equal to the temperature restoring)
5315    
5316    checkpoint61v (2009/09/21)
5317    o pkg/kpp:
5318     -add double diffusive contributions as a hack, turned off by default
5319      for now, and the code can be excluded with a CPP-flag
5320      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
5321     -add a verification experiments to "vermix" to test this code
5322    o pkg/mom_common:
5323      Move computation of length scales to mom_init_fixed.F (avoid recomputation
5324      at each time-steps*levels).
5325    o pkg/layers:
5326      Created a new package for computing volume fluxes in temperature or
5327      [not yet implemented] density layers, e.g. for calculating residual
5328      overturning circulations.
5329    o pkg/diagnostics:
5330      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
5331    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
5332    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
5333      To avoid mixing type (RS/RL) of input/output array argument,
5334      replace single mixed-type array with a pair from each type (RS/RL).
5335    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
5336      is now implemented for all pkgs (previously only done for the main pickup)
5337    
5338    checkpoint61u (2009/08/25)
5339    o pkg/obcs:
5340      - change OB?eta from _RS to _RL and put them into a separate commen block
5341      - add code to read OB?eta from a file via obcs_prescribe_read: the code
5342        compiles and does not destroy any other experiments, the data is read
5343        properly, but the code is not tested in actual applications
5344    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
5345      create a meaningful unit attribute for the time coordinate variable
5346    o pkg/ebm: add plenty of missing "_d 0" ;
5347       update results of experiment global_ocean_ebm (fwd + adjoint tests)
5348      Notes: several pieces of code only works for (very) specific set up
5349       (domain size, lat range, etc ...); should be documented & stop if one
5350       of those assumptions is not meet.
5351    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
5352       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
5353          and offline_exf_seaice (seaicetd + adjoint).
5354    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
5355       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
5356        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
5357    o few changes to pass when compiling with strick checking of arguments
5358       across S/R (allow to find few bugs in S/R calls).
5359    o pkg/seaice:
5360     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
5361       2d-fields, for slightly better performance
5362    
5363    checkpoint61t (2009/07/22)
5364    o pkg/seaice:
5365     - remove unused variables in seaice_evp
5366     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
5367    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
5368       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
5369       each processor opens a different file (a fix from Matt).
5370    o cg2d:
5371       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
5372       this reduces number of EXCH calls by 2 when using exch2.
5373       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
5374       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
5375    o pkg/thsice:
5376       add code for Near Infra-Red albedo (from Jeff)
5377       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
5378    o ini_model_io:
5379       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
5380       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
5381       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
5382    
5383    checkpoint61s (2009/06/30)
5384    o pkg/exch2 (exch2_rxN_cube*):
5385       remove last BARRIER (no need to synchronise after getting data from shared
5386       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
5387    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
5388      and generate new output (for the 2 tests) using default rotationPeriod.
5389    o pkg/exch2:
5390      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
5391        (was already the case with AUTODIFF_EXCH2 defined)
5392      - add bj in exch2 arrays and S/R.
5393      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
5394        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
5395    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
5396      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
5397        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
5398      - verification experiment natl_box.longstep
5399    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
5400      allow different versions of ifort (8 or 9) and different versions
5401       of mpi (mpich or mpich2) to be used with the same optfile.
5402      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
5403       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
5404    o pkg/seaice:
5405      fix previous modif (3-level field removed) for old-pickup reading
5406    
5407    checkpoint61r (2009/06/25)
5408    o pkg/seaice:
5409     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
5410      1. introduce fields for time step (N-1)
5411      2. do not use levels 2 and 3 anymore (but keep them)
5412      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
5413         includes changes to pkg/thsice/thsice_get_velocity.F,
5414         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
5415         pkg/obcs/obcs_apply_uvice.F.
5416     - completely remove code for leap-frog time stepping for second order
5417       advection
5418     - adjusted adjoint accordingly;
5419       gradient checks have improved by an order of magnitude!
5420    
5421    checkpoint61q (2009/06/22)
5422    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
5423     - the boundary conditions along open boundaries are unclear, because the
5424       associated masks are set to zero and are thus treated as closed when
5425       applying the slip-boundary conditions.
5426     - move initialisation of grid variables from seaice_init_varia to _fixed
5427    o adding doc/diags_changes.txt
5428    o model/src:
5429      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
5430       to avoid "_diags" naming if no relation to pkg/diagnostics.
5431      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
5432       file and only call PLOT_FIELD_XYZ if debugMode=T.
5433      remove few PLOT_FIELD_XY calls outside initialisation.
5434      remove few unnecessary BARRIER.
5435    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
5436      of salt_plume package in Southern Ocean
5437    o pkg/thsice:
5438     - fix hOceMxL in overlap (needed for sea-ice advection);
5439       update output of experiment global_ocean.cs32x15.icedyn.
5440    o pkg/seaice:
5441     - make the (placeholder-)tracer IceAge a little more meaningful
5442      by avoiding ridging of age due to convergent ice flow
5443     - add diagnostics for surface temperature, atmospheric and oceanic
5444       heat flux, and atmospheric and oceanic ice growth
5445    
5446    checkpoint61p (2009/06/10)
5447    o eesupp (global_max & global_sum):
5448     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
5449     - remove starting & endding barrier (no longer needed)
5450    o pkg/mdsio, writelocal:
5451       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
5452       (remove the STOP): uses shared buffer IO to store data from all threads
5453       and then let master-thread write nThreads tiles.
5454    o pkg/mdsio (read/write field):
5455     - tiled IO done in 1 piece (all levels at a time);
5456     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
5457     - multi-threaded: allow to read/write local (non-shared) array
5458       (was already working with singleCpuIO ; now works also without);
5459       => no longer needs barrier call after reading a file (added inside
5460       mds_read/write field).
5461     - move barrier calls outside gather/scatter_2d to mds_read/write_field
5462    o pkg/obcs/exf
5463      - exf_getffieldrec.F: add a few ". _d 0" and
5464                            add code to catch the case fldperiod = 0.  
5465      - obcs_precribe_read.F: change if statements so that they match
5466                              the variable type (_RL)
5467      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
5468        exf_iprec) as part of namelist EXF_NML_01
5469    o pkg/mdsio:
5470      - read/write tiled (local) files: read/write 1-level tile chunk at a time
5471        (instead of segment of length sNx); expected to speed up tiled IO.
5472    o pkg/exch2:
5473      - take buffer copy from/to array out of S/R exch2_send/recv into new
5474        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
5475        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
5476      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
5477      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
5478        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
5479        including Topology header file (and common blocks).
5480      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
5481        remove 2nd exch call in exch2_s3d_rx (no longer needed).
5482      - document S/R arg. list (+ update some comments)
5483    o pkg/seaice:
5484      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
5485        temperature and humidity over sea ice based on climatological values.
5486      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
5487        of LSR (this change is expected to change the results slightly because now
5488        it uses slightly difference moduli from the second last LSR solution, but
5489        that is more consistent with the stress computations; this part of the code
5490        is not tested in the verification experiments)
5491      - fix diagnostics for flux of ice in case of B-grid
5492      - turn strain rates eij and press into global fields within global
5493        common block in SEAICE.h for more straighforward diagnostics
5494      - fix diagnostics for principal stress components, press, zeta, eta
5495        to give something meaning full
5496    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
5497      new output (all 4 tests) using default rotationPeriod.
5498    o pkg KPP:
5499      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
5500      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
5501        and normal grid from 1 to Nr)
5502    o Fix computations of L4rdt in mom_calc_visc.F
5503    o eesupp:
5504      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
5505      should be called before a "stop" if we know that all process are going
5506      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
5507    
5508    checkpoint61o (2009/05/26)
5509    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
5510    o model/src/ini_curvilinear_grid.F:
5511       compute angleSin/CosC when they are not read from a file
5512    o pkg/seaice:
5513       add pseudo time stepping for LSOR
5514    o pkg/exch2:
5515       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
5516    o pkg/seaice:
5517       Adding separate sea ice albedo, drag coefficients, and HO in Southern
5518       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
5519    o SingleCpuIO:
5520       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
5521    o pkg/seaice:
5522       put exchanged variable in (local) common block for MPI+Multi-Threads
5523       to work (necessary with exch1, and for now with exch2 too).
5524    o verification: to get more experiments tested with mpi, mth and mpi+mth,
5525      change tiling of:
5526       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
5527       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
5528      update output of exp:
5529       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
5530       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
5531      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
5532                       (note: output.txt generated on faulks using only 1 tile)
5533    o eesupp & mdsio (SingleCpuIO):
5534     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
5535       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
5536       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
5537     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
5538     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
5539       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
5540    o pkg/exch2:
5541     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
5542       read parameter file "data.exch2" if it exists; otherwise try default regular
5543       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
5544     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
5545       with new code (not to be used, just as a backup solution).
5546     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
5547       in utils/exch2/input.
5548    
5549    checkpoint61n (2009/05/12)
5550    o eesupp & mdsio (SingleCpuIO):
5551      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
5552        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
5553        receive real*4 array (instead of real*8) to read/write 32.bit files.
5554        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
5555         and remove new mapping S/R)
5556    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
5557      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
5558        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
5559        when using exch2. Add S/R to map global io-buffer to global model array.
5560      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
5561    
5562    checkpoint61m (2009/04/29)
5563    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
5564      and add 3 other S/R for other types (R4,R8,RS).
5565      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
5566    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
5567     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
5568     - reduce number of macro definitions (keep only those which are used);
5569       can always call directly the corrresponding S/R if needed.
5570     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
5571       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
5572     Fixed wrong type of arg in:
5573       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
5574       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
5575     To fix: global_sum of var in common block is wrong (multi-threaded) in:
5576       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
5577     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
5578    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
5579      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
5580    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
5581    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
5582      edges are closed (zero depth); might happen with "blank tiles";
5583      for now, disabled if using OBCS.
5584    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
5585      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
5586    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
5587      to reduce length of 1.D array print in STDOUT.
5588    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
5589      + use 48 tiles (16x8): this will allow to test "blank tiles".
5590    o start to test MPI + multi-threaded (change testreport to skip tests
5591      where number of tiles do not match).
5592    o genmake2: add option "-omp" to turn on Open-MP ;
5593      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
5594    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
5595      and keep the original tile numbering. Note: compatible with old
5596      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
5597    
5598    checkpoint61l (2009/04/07)
5599    o Overlaps had been forgotten in calculating ijk keys : fixed
5600    o fix cyrus makedepend for gcc 4.4
5601    o experiment fizhi-cs-aqualev20:
5602      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
5603      and generate new output. Note: new output is much closer to the old
5604      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
5605      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
5606    o pkg/fizhi:
5607     - change to avoid indices going deliberately over array-bounds
5608     - remove unnecessary MPI stuff
5609     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
5610     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
5611       does not go over array-bounds and therefore returns reliable output.
5612     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
5613       this S/R has 4 output arguments, which are used inside "get_alarm";
5614       when it is called with the same variable "ndum" in place of several
5615       output arguments, this produces weird side effect inside "get_alarm"
5616      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
5617       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
5618       address) and produces error.
5619    o tools/gemake2: (March 27-29 2009)
5620      with option "-mpi": link *_mpi files from "MODS" dir (this is what
5621      testreport does).
5622    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
5623    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
5624       update lab_sea.lsr & lab_sea.salt_plume results
5625    o pkg/seaice:
5626      Major overhaul of the LSOR solver: change discretization from original
5627      finite differences to finite volume. The old routine is still in the
5628      file seaice_lsr.F and can be turned on with the CPP-flag
5629      SEAICE_OLD_AND_BAD_DISCRETIZATION
5630      Along with this change, the discretization of the strain rates is changed.
5631      The same flag turns on the old discretization in seaice_calc_strainrates.F
5632      All verification experiments with seaice are affected (except for
5633      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
5634      results by setting the above flag.
5635      Further changes involve changes in defaults:
5636      - ALLOW_FLOODING is defined and turned on by default
5637      - SEAICEadvSnow = .true. is now the default
5638      - SEAICEadvSalt = .true. is now the default
5639      - SEAICEadvAge  = .true. is now the default
5640      - SEAICE_clipVelocities  = .false. is now the default
5641                                         (as per J. Zhang's recommendation)
5642      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
5643        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
5644      - seaice_growth: replace computation of UG by a simple copy from wspeed
5645    
5646    checkpoint61k (2009/03/18)
5647    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
5648      seaice_lsr: fixed a few metric terms,
5649                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
5650                  add more debugging diagnostics
5651      seaice_evp: removed superfluous many metric terms of FV discretization
5652                  of stress divergence
5653                  affects lab_sea, lab_sea.hb87
5654      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
5655                  of stress divergence for non-evp solver
5656                  (this part is not tested anywhere)
5657      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
5658                  they were effectively only half slip
5659                  affects lab_sea.hb87
5660      updated all relevant verification experiments (except lab_sea//output_adm.txt
5661        which was left over, but fails at level 7 & 6)
5662    
5663    checkpoint61j (2009/03/17)
5664    o pkg/seaice: turn a few hard wired parameters into run time parameters
5665    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
5666      time in seconds as promised by the usints in seaice_monitor and exf_monitor
5667    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
5668      that are not cubed-sphere grids
5669    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
5670    o pkg/ctrl:
5671      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
5672    o non-hydrostatic (calc_gw.F):
5673      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
5674      update output of exp. global_ocean.cs32x15.viscA4
5675    o remove backward compatibility for thetaMin,phiMin
5676      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
5677    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
5678      interpolated wind field not only for curvilineargrid=.true., but also
5679      for a rotated grid (rotateGrid=.true.)
5680    o pkg/exf: add capability to bypass interpolation for runoff
5681      by setting yet another CPP-flag
5682    o eesupp/src, B-grid exchange:
5683      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
5684    o autodiff
5685      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
5686      allows to switch to single-prec common blocks;
5687      corresponding switch occurs in tamc.h, integer isbyte
5688      TAF store directivs "byte" and "kind" seem equivalent;
5689      Most tamc.h have been updated correspondingly.
5690    
5691    checkpoint61i (2009/02/13)
5692    o autodiff:
5693      fix autodiff_sore/_restore indices for obcs
5694      (spotted by I. Hoteit, M. Mazloff)
5695    o pkg/autodiff, pkg/ctrl:
5696      Add flag to reduce all tapelev I/O to single-prec.
5697      In data.ctrl set
5698        doSinglePrecTapelev = .TRUE.
5699    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
5700      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
5701    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
5702      real fresh water flux (not yet)
5703    o pkg/mdsio & rw:
5704     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
5705     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
5706    o pkg/flt:
5707     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
5708       init_fixed & ini_varia.
5709     - clean-up & simplify linear interpolation S/R:
5710       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
5711     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
5712     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
5713     - add vert. coordinate & horiz. indices to output files.
5714     - change vertical position in initial condition, from index to depth [m].
5715     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
5716       (easier to get to a curvilinear grid) ; delX,delY no longer used.
5717    o pkg/ggl90: a few modifications:
5718     - fix bottom boundary condition, and interpolation of KappaE
5719       near top and bottom
5720     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
5721     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
5722     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
5723    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
5724      (maintain temporary backward compatibility, until next checkpoint)
5725    
5726    checkpoint61h (2009/01/27)
5727    o pkg/diagnostics with "periodic averaging diagnostics":
5728      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
5729    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
5730    o pkg/obcs: fix loop ranges for balancing code
5731    o pkg/flt:
5732     - improve criteria for finding which tile owns a float.
5733     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
5734    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
5735      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
5736      with ocean biogeo)
5737    o pkg/flt:
5738     - do some cleaning and fix the restart ;
5739     - add output.txt in flt_example/results to get this pkg tested.
5740    o genmake2: add an EXTENDED_SRC option and flag.
5741       for now, cannot be turned on on command line (only through genmake_local)
5742    o pkg/mdsio: read/write vector:
5743     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
5744     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
5745       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
5746     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
5747      (drop to 4 digits matching for grad). But this test does not look very
5748      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
5749    
5750    checkpoint61g (2008/12/29)
5751    o pkg/flt:
5752      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
5753       + make OPTIONS file more standard.
5754      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
5755      - fix _BYTESWAPIO CPP-Flag
5756      - standard reading of file-parameter "data.flt"
5757      - fix argument list of S/R FLT_RESTART
5758      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
5759    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
5760    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
5761      a still unfixed compiler/optimization bug
5762    
5763    checkpoint61f (2008/11/21)
5764    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
5765      update results of global_ocean.cs32x15.icedyn test.
5766    o move getcon.F from model/src to pkg/fizhi.
5767    o pkg/exf: add parameter for extrapolation of temp up to the surface
5768       and option to prevent negative evap (in bulk_largeyeager04 only).
5769    o Prather Advection scheme: fix tracer conservation for divergent flow
5770      (e.g., when using NonLin Free-Surface).
5771    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
5772    o gmredi (Visbeck-variable-K):
5773     - add more parameters to Visbeck-variable-K.
5774     - use a 5 points average for dSigmaR in Visbeck-K calculation
5775       (more "homogenous": same stencil and same weights as in dSigmaH)
5776     - update output of ideal_2D_oce experiment.
5777    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
5778      (#undef REAL4_IS_SLOW)
5779     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
5780       coordinate variable
5781     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
5782       (surface forcing fields), removes some of the functionality
5783     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
5784     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
5785       probably not all: copy _RS surface flux fields to RL field before
5786       calling DIAGNOSTICS_FILL
5787     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
5788       real*4 (CALL EXCH_*_RS) versions.
5789     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
5790       (generate new output).
5791    
5792    checkpoint61e (2008/10/23)
5793    o gmredi (Visbeck-variable-K):
5794      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
5795      - change computation of Visbeck-K where Slope > Smax :        
5796        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
5797        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
5798    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
5799      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
5800    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
5801    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
5802      does not become too large (to avoid precision problems in implicit-diffusion
5803      solver); update ideal_2D_oce output.
5804    o pkg ggl90:
5805      - in ggl90_cal.F: compute only one set of visc/diff, used to
5806        step forward TKE/T/S/momentum
5807      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
5808        have Prandlt =1)
5809    o gmredi (fm07):
5810      - add lower limit on Transition layer thickness + lower limit on 1/lambda
5811      - allow to set few more params from data.gmredi
5812    o pkg ggl90:
5813          - add missing sqrt(2) factor in computation of mixing length
5814            scale in ggl90_calc.F
5815            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
5816    
5817    checkpoint61d (2008/09/25)
5818    o adjoint modifs
5819      - adapt to new field rhoInSitu
5820      - allow to revert from StoreDynVars2D, StoreDynVars3D
5821        to individual fields
5822        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
5823    o store 3-D (in-situ) density in commom block (DYNVARS.h)
5824     - save 1 rho computation.
5825     - no longer modify T & S inland when using down_slope pkg.
5826    o gad_som : allow to switch to SOM advection for T & S without corresponding
5827      pickup files (using new S/R: MDS_CHECK4FILE).
5828    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
5829      (for useSingleCpuIO to work in multi-threaded)
5830    o pkg/shelfice:
5831     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
5832       with SHELFICEtopoFile in data.shelfice
5833     - move code for reading ice shelf topography and modifying hFacC into separate
5834       subroutines of the shelfice package
5835     - separate initialisation of "fixed" and "variable" variables
5836     - kTopC is not (yet) replaced by kSurfC, although this is possible
5837    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
5838    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
5839      and rename:
5840      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
5841      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
5842    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
5843    
5844    checkpoint61c (2008/08/30)
5845    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
5846      to add mass source/sink of fluid in the interior (3-D generalisation
5847      of oceanic real-fresh water flux).
5848    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
5849    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
5850    o new pkg: down_slope
5851      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
5852      - presently, modify T & S inland (dwnslp_calc_rho.F).
5853        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
5854      - implementation for ocean in P-coords not tested.
5855      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
5856    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
5857      (to facilitate conversion of oceanic pkg to p-coordinate).
5858    o change FIND_RHO to FIND_RHO_2D :
5859      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
5860    o new pkg: cheapaml
5861    
5862    checkpoint61b (2008/08/05)
5863    o exch2:
5864      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
5865      - no longer depend on the order sequence (N,S,E,W).
5866      - 3rd exchange no longer needed (tested with 24 tiles).
5867      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
5868      - exch_UV_A-grid readily available (but not yet tested).
5869      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
5870      (both are no longer needed) in exch_uv: no effect in forward run; but
5871       get truncation error differences with adjoint exch.
5872    o exch2:
5873     - change index-bounds storage (moved from target to local tile,
5874       more intuitive this way) ; rename/remove some variables.
5875     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
5876    
5877    checkpoint61a (2008/07/29)
5878    o exch2/matlab-topology-generator:
5879      fix bug in index bounds for N-S internal exchange (hard to tell if this
5880      had any effect on the solution).
5881    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
5882      is exceeded
5883    o testreport: modify syntax of awk, so that it works also with
5884      awk, and not only with nawk and gawk
5885    
5886    checkpoint61 (2008/06/24)
5887    o autodiff
5888      Change default for TAF usage by removing argument '-nonew_arg'
5889      This changes TAF subroutine argument list (ordering of active var.)
5890      Omission of this flag leads to incompatibility w.r.t. TAMC
5891      To restore TAMC-compatibility, need following modifs:
5892      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
5893      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
5894      Tested TAF version is 1.9.22
5895      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
5896    
5897    checkpoint60 (2008/06/19)
5898    --->>> This is the last checkpoint for which generating the adjoint
5899    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
5900    --->>> by default.
5901    --->>> Future checkpoints will ommit this flag by default.
5902    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
5903    o pkg/grdchk: Add gradient check to etan0 perturbations.
5904    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
5905    o pkg/autodiff: more flexibility in zeroadj.
5906      model/src: modifying do_oceanic_phys.F accordingly.
5907    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
5908    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
5909      special setup of gmredi for which the adjoint is stable
5910      enough for parameter optimization.
5911    o bridging the gap between eddy stress and GM.
5912      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
5913          along with a change in CPP option (now ALLOW_EDDYPSI).
5914      -> when using GM w/ GM_AdvForm:
5915          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
5916          is applied either in the tracer Eq. or in momentum Eq.
5917          depending on data.gmredi (intro. GM_InMomAsStress).
5918      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
5919      The key modifications are in model/src/taueddy_external_forcing.F
5920      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
5921    
5922    checkpoint59r (2008/05/29)
5923    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
5924      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
5925      fix option to read coriolis(@ cell-corner) from files with CS-grid.
5926    o pkg/mnc: add some attributes to standard 1D-coordinate variables
5927    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
5928      mass points, when using mnc for output
5929      - add runtime parameter (missing_value, missing_value_int) to override
5930        default (which is the value of getcon('UNDEF'))
5931    o pkg/mnc: prepare mnc for the actual use of missing values with the
5932      diagnostics package: small fix in mnc_cw_readwrite.template and more
5933      initialisation of never used fields
5934      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
5935      versions
5936    o pkg/thsice/thsice_ini_vars.F added default initial values so that
5937      thermodynamics sea ice solver does not blow up when some initial fields
5938      are missing.
5939    o move from external_forcing_surf.F to ini_forcing.F
5940      the p-coord. hack consisting in using pLoad to set phi0surf ;
5941      update output of tutorial_global_oce_in_p (affected @ truncation level).
5942    o Freshen up a bit hs94.1x64x5, notably:
5943      remove rotationPeriod and tRef=5*0. (adjoint only), and add
5944      exactConserv=.TRUE.
5945    o pkg/generic_advdiff:
5946      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
5947      applies to files where Temperature & Salinity 2nd Order moments are used.
5948    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
5949      this uses a dynamically allocated internal state data structure
5950      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
5951      and requires a fortran 90 compiler
5952    
5953    checkpoint59q (2008/05/06)
5954    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
5955       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
5956    o Refresh tutorial_global_oce_biogeo, notably:
5957      - change bathymetry (put back seamounts in ACC, use hFacs)
5958      - change EOS (POLY3 --> JMD95Z)
5959      - use Bryan-Lewis vertical diffusivity
5960      - use multidimensional advection
5961      - remove old virtual virtual in dic pkg, now done through ptracer pkg
5962      - change a couple of parameters in dic pkg
5963    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
5964    o pkg/obcs: change default to OBCSfixTopo = .true.,
5965      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
5966      - replace "debugMode" with "debugLevel .GE. debLevB"
5967    o implementation of TAF directives for gchem,cfc,dic
5968    o remove "exp5" (replaced by tutorial_deep_convection).
5969    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
5970      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
5971      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
5972      --> changes results in exp4, seaice_obcs
5973    o tutorial_deep_convection :
5974      update the set-up and increase resolution and domain size ; start
5975      from pseudo initial conditions = output at t=120mn in order to see
5976      something happening when running testreport.
5977    o pkg/seaice: add os7mp as an advection scheme
5978                  add check for advection schemes
5979                  add a flag for restoring T and S underneath sea ice
5980    o pkg/my82: add netcdf-support and diagnostics
5981    o thsice pkg:
5982      - Now hsMax limits snow height by turning it into ice following
5983        flooding scheme (and now conserving energy)
5984      - Slight rewriting of the formula in thsice_calc_thick.F
5985      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
5986      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
5987    
5988    checkpoint59p (2008/04/10)
5989    o gchem / dic / cfc :
5990      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
5991      - add new parameter files: "data.dic" & "data.cfc" ;
5992      - various re-arrangement in initialisation & header file ;
5993      - fix tutorial_global_oce_biogeo for multi-threaded test.
5994    o pkg/dic: test for "pickup_dic" file when restarting ;
5995      if no pickup-file, can restart with a re-initialised pH (same as it did
5996      before) providing pickupStrictlyMatch is set to False.
5997    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
5998      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
5999    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
6000      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
6001    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
6002     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
6003       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
6004    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
6005       scheme to use for vorticty-term ;
6006     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
6007       (with default selectVortScheme, return to original discretisation)
6008     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
6009    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
6010    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
6011      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
6012      also fix diagnostics VISCAHW & VISCA4W.
6013    
6014    checkpoint59o (2008/03/07)
6015    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
6016    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
6017      move a few statemens out the main loop into separate loops
6018    o pkg/shelfice:
6019      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
6020        (kg/m^2/s), does not break tests, because in verification/isomip,
6021        rhoConstFresh=rhoConst (by accident)
6022      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
6023      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
6024        new file model/src/seawater.F, so that they are available for all pkgs.
6025      - convert potential temperature into in-situ temperature. This changes the
6026        isomip tests => update tests
6027    o add a flag writePickupAtEnd (default=true) to be able to suppress
6028      writing a pickup at the last timestep
6029    o tools/mpack-1.6 :
6030      - disable automake (not working) and autoconf (not needed).
6031      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
6032        also cleaner with much less compilation warnings.
6033    o pkg/profiles:
6034      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
6035      (for "less than 32 characters name" compiler requirement)
6036    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
6037      conditions that have a different sampling frequency than S/T/U/V obcs
6038    o pkg/diagnostics (stats-diags):
6039      - fix global Min/Max in case 1 processor get only empty tiles
6040    o genmake2: replace (4 times)
6041         make genmake_tc_1.o >> genmake_warnings 2>&1
6042      with
6043         COMM="$CC $CFLAGS -c genmake_tc_1.c"
6044         echo $COMM >> genmake_warnings
6045         $COMM >> genmake_warnings 2>&1
6046      to make genmake2 always see the value of CC as specified in the optfile.
6047    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
6048      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
6049      - modify verification advect_cs test to test SOM-advection on CS-grid.
6050    o pkg/ctrl:
6051      - Rewrite of ctrl_map_ini_ecco.F,
6052        introducing a generic routine (ctrl_map_ini_gen.F).
6053      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
6054    
6055    checkpoint59n (2008/02/09)
6056    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
6057      number in dedicate array "hdiag":
6058      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
6059        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
6060      - many small changes (integer format) for large number of diagnostics
6061      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
6062        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
6063    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
6064      usingSphericalGrid, this allows to define the rotated grid coordinates
6065      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
6066      geographical coordinates according to the inverse of the rotation defined
6067      by the Euler angles, so that Coriolis parameter and online-interpolation by
6068      exf works with the geographical coordinates on XC/YC/XG/YG.
6069      Naturally, this feature does not work with all packages, so some
6070      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
6071      profiles), because there the coordinates are assumed to be regular
6072      spherical grid coordinates.
6073    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
6074      - introduce isopycnal diffusion coefficient control.
6075    o tools/adjoint_options:
6076      - additional control vector components.
6077    o pkg/mnc: have mnc create marginally meaning full coordinate variables
6078      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
6079    o pkg/mypackage:
6080      - add example of read/write pickup for state-var ;
6081      - add entry points to the main code for state-vars diags & write-pickup.
6082    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
6083      transitions for useExfYearlyFields
6084      - add new subroutine that determines the file to read from for
6085        use*YearlyFields = .TRUE. and .FALSE.
6086      - add a verification experiment to global_with_exf that tests
6087        useExfYearlyFields with USE_EXF_INTERPOLATION defined
6088    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
6089      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
6090      subroutines (which could be generated from a template, because they are
6091      almost identical), for now they are included in obcs_prescribe_read.F for
6092      simplicity
6093    o pkg/exf:
6094      - add a little more diagnostic to exf_interp_read (in analogy to
6095        mds_read_field, can be turned off with debugLevel < debugLevA=1)
6096      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
6097        ugly but fast by unrolling short inner loops, inserting a unroll=8
6098        directive in routine lagran, and splitting a loop and making do while the
6099        outermost loop (the latter requires the intoduction of index arrays)
6100    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
6101    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
6102      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
6103    o verification/seaice_obcs: updated for restart test and latest options
6104    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
6105      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
6106      for now this is only available for the C-grid code and also within
6107      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
6108    
6109    checkpoint59m (2008/01/14)
6110    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
6111      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
6112    o gad_som : fix flux output (& diagnostics) to have same units as other  
6113      advection scheme fluxes (was previously multiplied by deltaT).  
6114    o added verification/seaice_obcs both to test seaice open boundaries
6115      and to provide an example matlab scrpt for generating them
6116    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
6117    o pkg/salt_plume: clean up salt_plume_frac.F to
6118      remove redundancy in PlumeMethod 1 and 4
6119    o pkg/kpp: added saltplume diagnostics
6120    o pkg/obcs and pkg/seaice:
6121      - do not set uice and vice to zero when OB*icefile are unspecified
6122      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
6123      - moved seaice tracer obcs after call to seaice_growth
6124    o pkg/salt_plume: added various options for salt plume depth
6125      criterion and for vertical distribution of the salt
6126    
6127    checkpoint59l (2007/12/18)
6128    o pkg/ptracers: new version of ptracers pickup:
6129      read meta file and write only fields which are needed to restart.
6130      ( same logic as main pickup file ; also using pickupStrictlyMatch )
6131    o pkg/seaice:
6132      - add timescale for melting due to warm mixed layer as a means of
6133        setting SEAICE_availHeatFrac more conveniently
6134      - add a CPP-flag/runtime parameter check for flooding algorithm
6135      - reformulated availHeat in seaice_growth.F to be independent of AREA
6136    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
6137      unit changes
6138    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
6139    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
6140      SX vector computer.
6141    o pkg/seaice:
6142      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
6143        seaice forcing fields can now be read only through pkg/exf
6144      - removed some unused halos
6145    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
6146    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
6147      or U/VICE from U/VWIND before computing U/VSTRESS
6148    
6149    checkpoint59k (2007/11/30)
6150    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
6151      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
6152    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
6153      all experiments pass when compile with un-initialised var. checking option.
6154    o added pkg/salt_plume
6155    o script to test restart (for now, in MITgcm_contrib/jmc_script)
6156    o pkg/seaice: new read/write pickup version.
6157      read meta file and write only fields which are needed to restart.
6158      ( same logic as main pickup file ; also using pickupStrictlyMatch )
6159    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
6160    o lab_sea.hb87: modify the domain & update output.hb87.txt :
6161      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
6162      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
6163      process. Fixed here by closing the domain at the Northern boundary.
6164    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
6165    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
6166      a set of consecutive levels in/from a 3-D array.
6167    o pkg/ptracers:
6168      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
6169      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
6170    
6171    checkpoint59j (2007/11/09)
6172    o in pkgs: dic, obcs, offline, rbcs:
6173      standard way to compute coeff. for time interpolation between 2 time reccords
6174      which retains full precision (& make results less dependent on compiler).
6175      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
6176    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
6177      packages instead of reading ice cover and wind speed separately
6178    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
6179     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
6180      to allow to compile customized code before the update)
6181    o cleaning-up:
6182      - fix CPP instruction syntax in pkg/obcs
6183      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
6184        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
6185      - fix some threads issue in IO parts.
6186    o pkg/dic:
6187      - add tons of "_d 0" (--> much better testreports !)
6188       and then update outputs of tutorial_global_oce_biogeo
6189    o pkg/mom_fluxform:
6190      add a special version of momentum advection intended to conserve momentum
6191      next to a bathymetry step or a coastline edge. (default = off = #undef)
6192    o new read/write pickup version:
6193      - for now, only implemented for main (mdsio) pickup file.
6194      - write out only what is needed to restart; merge pickup_nh , pickup_ph
6195        and main pickup together.
6196      - read meta file; read only what is needed to restart; stop if a field
6197        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
6198        if it make sense (even if the restart is not perfect).
6199      - if no meta file, assume that pickup to read corresponds exactly to
6200        a pickup that would currently be written.
6201      - read pickup written in the old format (until checkpoint59i) if it
6202        recognizes an old meta file (no field-list).
6203      - add a meta file in exp. which starts from a pickup: 2 cases:
6204        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
6205         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
6206        b) a meta file describing the content of the associated pickup file
6207         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
6208    o pkg/mdsio & pkg/rw:
6209      - new routine to read a meta file ; new set of routine to read
6210        Multiple-fields file (with meta file).
6211    o added open boundary conditions capability for seaice
6212        HSNOW, HSALT, UICE, and VICE
6213    
6214    checkpoint59i (2007/10/21)
6215    o adjoint:
6216      * fix multiDimAdvection adjoint
6217        (partial recomputation problem by TAF for fVerT(:,:,kDown)
6218        and comlev1 size definition (maxpass vs. max. number of tracers)
6219      * verification/global_ocean.90x45x15 adjoint now tests
6220        NLFS and multiDimAdvection using DST3 (=30)
6221      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
6222    o pkg/kpp: add "_d 0" to real constant (if missing);
6223      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
6224      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
6225    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
6226      for internal parameters related to restart process (formerly from PARAMS.h)
6227      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
6228    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
6229      as argument. (only atm2d & obcs write_pickup have not yet been updated)
6230    o pkg/monitor:
6231      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
6232      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
6233      - account for deep Atmosphere factor and density factor (anelastic)
6234    o added open boundary conditions capability for seaice HEFF and AREA
6235    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
6236      thermodynamics
6237      - requires a little reorganization, which affects the testreport results
6238        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
6239        so that now the conservative form is tested
6240      - add a few comments
6241    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
6242    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
6243    o add new diagnostics to seaice: advective, diffusive fluxes (only for
6244      multidim-advection, for scheme 2 they are not filled) and transports,
6245      thermodynamic growth rates
6246    o change units of EmPmR (inside the code, + within coupling interface)
6247      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
6248      Affects results @ truncation level (cg2d match) and update output of
6249       experiments: lab_sea(6), global_ocean.90x40x15(10),
6250      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
6251      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
6252      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
6253      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
6254    
6255    checkpoint59h (2007/09/29)
6256    o pkg/exf:
6257      - improve vectorization by moving if-statement out of loops in
6258        exf_mapfields, exf_radiation
6259      - exf_bulkformulae.F: introduce 2D fields and vectorize code
6260    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
6261    o testreport:
6262      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
6263        monitor & update offline_exf_seaice exp. output.
6264      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
6265    o pkg/seaice:
6266      - bug fix in the evp solver: boundary conditions were affected be
6267        masking of zMax/zMin (changes results)
6268      - minor bug fix in boundary conditions in seaice_calc_strainrates
6269        (changes results for no_slip)
6270      - seaice_lsr.F: make interpolation of eta dependent on boundaries
6271      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
6272      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
6273        stress formulation and no-slip boundary conditions
6274    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
6275      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
6276    o pkg/seaice: a first HSALT time stepping equation has been checked in
6277    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
6278      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
6279      without requiring DO-IF statements
6280    o pkg/thsice:
6281      use continuous power-law function for partition of energy between lateral
6282      melting/freezing and thinning/thickening ; old code using step function
6283      still available with #undef THSICE_FRACEN_POWERLAW
6284      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
6285    o testreport: change AD testing : check against results/output_adm.txt
6286      using same scripts as for forward test.
6287    
6288    checkpoint59g (2007/09/17)
6289    o adjoint testing: in preparation for changing testreport:
6290      - output format: cost and grad written on separated lines
6291      - ad output results in directory "results" (instead of "results_ad")
6292    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
6293    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
6294    o pkg/ecco: allow user defined cost function contributions
6295    o testreport:
6296      Allow to choose (per experiment) the list of tested output variables
6297       and the main variable (used to issue a pass/FAIL ) ;
6298      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
6299      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
6300      Also modify printing of summary:
6301       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
6302       b) echo the list of tested variables in the individual summary.txt of
6303          each experiment.
6304    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
6305      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
6306      (but still depend on the tile decompostion of the domain).
6307    o pkg/seaice: change a discretization detail to make the B-grid code
6308      "more symmetric". This change is likely to remove all "ridges/leads" that
6309      where quasi-aligned with the grid in B-grid solutions. It may also be
6310      the solution to the stress coupling issues with the B-grid.
6311    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
6312      remove .cvsignore from input dir. (since testreport no longer run here).
6313    o pkg/thsice:
6314     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
6315     - fix reshaping of sea-ice just after advection:
6316       melt all the ice only if ice-volume is too small.
6317     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
6318       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
6319     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
6320    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
6321      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
6322    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
6323      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
6324      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
6325      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
6326      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
6327      -> update output.txt
6328    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
6329     this affects truncation error: -> update output.txt of exp:
6330      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
6331      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
6332    
6333    checkpoint59f (2007/08/21)
6334    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
6335    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
6336      a bounded range (in forward mode)
6337    o pkg/ecco, ctrl, autodiff and mom_common:
6338     internal parameter controls, completements of implementations
6339    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
6340    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
6341      (not seem any difference in testing results).
6342    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
6343       at face corners.
6344    o pkg/generic_advdiff:
6345     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
6346      loop range indices for computing vertical advection tendency
6347      and do the calculation in the interior only (no overlap) ;
6348      for now, only implemented for SOM advection (to save CPU time).
6349     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
6350    o exch2 adjoint
6351      First set of changes:
6352      - add exch2 hand-written adjoint templates
6353      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
6354        This will require cleanup in pkg/autodiff/*.F
6355        (changed routines currently kept separate in verif. code/)
6356      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
6357        that used to hide exch2 or cubed-sphere specific code
6358        (commented via 'cph-exch2')
6359    o pkg/seaice
6360      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
6361    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
6362       output of global_ocean.cs32x15.thsice .
6363    
6364    checkpoint59e (2007/07/26)
6365    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
6366      for B-grid vector (not yet tested) and C-grid vector (<- only used
6367      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
6368    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
6369      (#ifdef ALLOW_SALT_PLUME)
6370    o gather_2d/scatter_2d: removed halo regions
6371    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
6372      scheme and the corresponding test case (under front_relax dir). For now,
6373      only available with Skew-flux form and not yet tested in realistic set-up.
6374      adjoint: store directives updated, but gradient checks deteriorated,
6375      so maybe GM/Redi adjoint is now broken.
6376    o seaice adjoint
6377      * add AREA, HEFF, HSNOW as control variable
6378        (should not change lab_sea results)
6379      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
6380    o pkg/seaice:
6381      * added computation of saltFlux in seaice_growth;
6382        For time being, sea ice salinity is assumed constant
6383        contribution of snow flooding to freshening of sea ice is neglected.
6384        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
6385        defaults to 0.0 in order to maintain backward compatibility.
6386        Typical values for SEAICE_salinity are 4 to 10 g/kg.
6387      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
6388      * added SEAICE_availHeatFrac, which specifies fraction of surface level
6389        heat content used to melt or grow ice
6390      * commented out cap of HICE: it helps keep ice thinner
6391      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
6392      * applied OBCS T/S mask to HEFFM sea ice mask
6393    
6394    checkpoint59d (2007/06/21)
6395    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
6396     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
6397     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
6398    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
6399     and change default value of parameter "GM_Small_Number";
6400     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
6401       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
6402       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
6403    o pkg/ecco: cost function when applying pkg/smooth to controls
6404    o pkg/ctrl: add forcingPrecond run time parameter
6405    o pkg/seaice:
6406     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
6407     - fix bug in metric terms of u-equation in LSR solver (implicit part),
6408       changes verification/lab_sea
6409     - rearrange implicit part of u-equation in LSR solver to make it easier to
6410       read, understand, and debug. This causes changes at the truncation level.
6411     - fix (serious) bug in the boundary conditions (sign error in the implicit
6412       part) of the LSR solver. Changes all LSR results.
6413     - fixed problem with HSNOW initialization to avoid thick snow when AREA
6414       is initilized with small values - does not change lab_sea results.
6415     - added HsnowFile initialization capability
6416    o pkg/smooth: addition to model/src and pkg/ctrl so allow
6417     initialization of pkg/smooth and application to control vector
6418    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
6419    o dependencies: pkg/profiles requires pkg/cal
6420    o pkg/profiles:
6421     - added option ALLOW_PROFILES_GENERICGRID
6422         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
6423         that interpolation information (grid points and coefficients) is provided
6424         within the netcdf input files.
6425         -> sample matlab scripts can be found in MITgcm_contrib/gael
6426         that allow you to prepare netcdf input files.
6427     - also modified: cleaner include statements, cleaner error print statements,
6428       cleaner stops when error, and more tests of the netcdf input files consistency.
6429    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
6430    o pkg/seaice:
6431     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
6432       requires a new routine: seaice_diagnostics_fill.F
6433     - make sure that seaice does not move if not forced (pressure replacement
6434       method, Hibler and Ip, 1995), changes results
6435     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
6436     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
6437       It is turned off by default (=-1.), because it changes the results.
6438     - make it possible to read AREA from a file, too.
6439    
6440    checkpoint59c (2007/06/04)
6441    o add S/R and diagnostics for oceanic mixed-layer depth
6442    o move GMRedi call after all vertical mixing schemes (including KPP)
6443    o pkg/thsice:
6444     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
6445      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
6446    o pkg/obcs:
6447     - bug fix for balance code
6448    o pkg/seaice:
6449      - allow values of SEAICE_elasticParm > 1
6450      - add new parameter SEAICE_evpTauRelax as an alternative
6451        to SEAICE_elasticParm
6452      - make lsr boundary conditions free slip (by default), changes result
6453      - add code for no slip boundary conditions for lsr
6454      - set minimum of zeta to zero (and not 4e8) (changes results)
6455      - add a cap on AREA after advecting AREA if seaice_growth is not called
6456    o change calculation of Visbeck K:
6457      - no longer depend on tapering scheme; instead, compute slope (limited
6458        by GM_maxSlope). this is equivalent to what was comuted before with
6459        clipping or linear tappering.
6460      - fix vertical averaging (wrong by 1/2 level)
6461      - leave the old version (but will not be maintained) within
6462        #ifdef OLD_VISBECK_CALC / #endif
6463      - update output of exp. ideal_2D_oce
6464    o change error catch in calc_r_star to improve vectorization
6465    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
6466      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
6467    o adjoint:
6468      Re-organized adjoint checkpointing according to Matt Mazloff
6469      (but with modifs/completions/cleanups)
6470      Storing is now bundled into large arrays to optimized I/O
6471      (and second step in cleanup of the_main_loop)
6472    
6473    checkpoint59b (2007/05/16)
6474    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
6475      - export/import (between ocean & coupler) fields needed for ocean DIC.
6476    o pkg/seaice:
6477      - get rid of three more exchanges seaice_calc_viscosities (required
6478        different loop boundaries in seaice_lsr and seaice_ocean_stress)
6479      - bug fix in seaice_ocean_stress (update of lab_sea required)
6480      - reduce loop boundaries to necessary minimum also in seaice_evp
6481      - go back to the old way of computing deltaC/Z as the adjoint likes that
6482        better
6483    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
6484      passive tracer to an Age Tracer) + update output.txt
6485    o pkg/exf:
6486      - implement A-grid / C-grid selection for wind-stress input files.
6487      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
6488      for now, in exf_bulk_largeyeager04.F only :
6489      - change implementation for case where windspeed + 2. components wind-stress
6490        are read-in. AND use rhoConstFresh to convert evap.
6491    o pkg/seaice:
6492      - use correct EXCH_UV for wind-forcing (on A-grid).
6493      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
6494        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
6495    o pkg/exf:
6496      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
6497      EXF_INTERPOLATION:
6498      - merge global_with_exf/code version of exf_interp_read.F
6499        to the main code ;
6500      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
6501        reading the file ; Important: This options needs to be defined to recover
6502        previous code.
6503        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
6504      - no longer loose real*8 precision along the way when using exf_iprec=64.
6505    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
6506      - change discretisation of evp-solver in order to avoid another exchange
6507        (changes lab_sea) and clean up a little
6508      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
6509        help the adjoint (this also changes the results slightly)
6510      - add a few "_d 0" where they had been missing in seaice_evp.F
6511      - cleaning up: remove unused seaice_calc_rhs.F
6512    o pkg/exf: some cleaning-up:
6513      - change various "constants" into runtime parameters
6514      - cleaned-up Large&Yeager04 routine which should eventually
6515        replace exf_bulkformulae.F (changed names of S/R and CPP)
6516        and merged various ALLOW_ATM_WIND options
6517     only used with thsice pkg (in thsice_get_exf.F):
6518      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
6519        which are used when useStabilityFct_overIce=TRUE (= the default)
6520      - change default values of ice & snow emissivity and scale downward LW
6521        by ice & snow emissivity.
6522    o pkg/thsice:
6523     fix few little problems, in thsice_calc_thickn.F:
6524      - growth vertically (and not laterally) if iceFrac == iceMaskMax
6525      - melt only laterally if hIce < hThinIce (as the comments say)
6526      and in thsice_extend.F:
6527      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
6528      - start to form ice as soon as the minimum ice-volume is reachable.
6529     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
6530      and cpl_aim+ocn
6531    o pkg/kpp
6532     - move computation of surface related input fields to KPP into a new
6533       subroutine kpp_forcing_surf.F
6534     - remove wrong (within bi,bj loops) EXCH calls.
6535     - little cleaning (add argument myThid in last position, cvs header ...)
6536     - for now, fix conservation problem by exchanging KPPviscAz (may not
6537       be the best fix)
6538    o pkg/seaice
6539     - check for inconsistent evp parameter/cpp-flag combination
6540     - remove leftover errIO flat for obsolete name list error handling
6541    o OpenAD
6542     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
6543    
6544    checkpoint59a (2007/05/01)
6545    o pkg/seaice: some parameter clarifications and a little bit of clean up
6546    o pkg/thsice: rename run-time parameters:
6547       himin       -> hIceMin
6548       himin0      -> hThinIce
6549       hihig       -> hThickIce
6550       i0          -> i0swFrac
6551       transCoef   -> bMeltCoef
6552       frac_energy -> fracMelting
6553      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
6554       with default values (for now) that do not change the results.
6555      remove old version of thsice vars advection in pkg/seaice.
6556    o in FFIELDS.h:
6557      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
6558      - make pLoad & sIceLoad always available (but still only used if
6559         ATMOSPHERIC_LOADING is #define).
6560    o pkg/kpp: replaced _KPP_RL with _RL
6561    o bug fixes for vertical diffusivity computations when both KPP and
6562        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
6563        are no longer updating the vertical diffusivity array
6564        (passed as argument) but are (re-) setting those arrays.
6565    o pkg/seaice: fix bug in evp solver, while doing that
6566      - change (improve?) discretization of stress computations for both
6567        cgrid-lsr and evp solver
6568      - add a new routine to compute strain rates
6569      - the above changes lab_sea results
6570      - add no slip conditions for evp solver (off by default), lsr-version
6571        may follow
6572      - fix exchange for shear at Z-points (does not change lab_sea)
6573      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
6574        (to force the user to pick a time step since there is not "safe" way
6575        of choosing it)
6576      - add principal stress diagnostics
6577      - rearrange fields for evp a little to avoid having to call a: too many
6578        exchanges and b: exchanges for stress trensor components which we do
6579        not have.
6580      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
6581        of evp, complete rewrite for lsr case (latter is does not yet work
6582        in all cases)
6583    o pkg/kpp: add code to have mixing in shelf ice caverns
6584      - add myThid to all kpp routines (long overdue)
6585    
6586    checkpoint59 (2007/04/19)
6587    o pkg/exf:
6588      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
6589        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
6590      - move exf header files from lower_case.h to UPPER_CASE.h ;
6591        add missing cvs Header & Name
6592      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
6593      - add namelist param. selectStressGridPosition, exf_monFreq
6594      - retire many _CLIM routines, and remove data.exf_clim
6595        + params moved to data.exf
6596        + climsst, climsss now handled by exf_set_gen, i.e.
6597          climss?period=0 refers to constant field,
6598          climss?period=-12 to monthly forcing
6599      - split up namelists in data.exf
6600    o pkg/seaice:
6601      - remove seaice_exch and seaice_exch_uv
6602      - remove superfluous exchange of theta
6603      - add myThid to seaice_budget_ocean/ice
6604      - add new interface for atmospheric wind forcing (C-grid only)
6605        + new routine
6606        + two new field (taux, tauy for stress over ice)
6607        + removed one global field (DAIRN) for C-grid case only
6608    o pkg/thsise
6609      - 2nd set of modifs for thsice adjoint in conjunction with exf
6610    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
6611    
6612    checkpoint58y_post (2007/04/15)
6613    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
6614      vertical diffusivity, similar to that in MOM4; turned on using
6615      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
6616      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
6617    o Added capability for 3D specification of background vertical diffusion
6618      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
6619      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
6620      "data" file that contains the 3D vertical diffusivity coefficients.
6621    o ice dynamics (pkg/seaice) with thsice thermodynamics:
6622      - add code within pkg thsice to advect & diffuse sea-ice fields
6623      similar to (and will replace) what has been added in  seaice_advdiff.F,
6624      but: - conserving Mass, Heat & Salt.
6625           - better when using non-linear advection scheme (not yet fully tested)
6626           - can also be used in atmospheric set-up (for now, only the diffusion).
6627    
6628    checkpoint58x_post (2007/04/04)
6629    o IO option for global-file compact format:
6630      - add options when generating topology (utils/exch2/matlab-topology-generator)
6631      - add I/O capability (pkg/mdsio).
6632      - adapt utils/matlab/rdmds.m to read this format.
6633      for now long-line format not yet supported by pkg/mdsio (& exch2).
6634    o shelfice: add a few diagnostics
6635    
6636    checkpoint58w_post (2007/03/13)
6637    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
6638      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
6639      (and replace horiVertRatio in NH code).
6640      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
6641                         and tutorial_plume_on_slope (sensitive to truncation)
6642    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
6643      directly to drive seaice model (C-grid only)
6644    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
6645     - reintroduce computation of wind from stress,
6646     - compute tau (in exf_bulkformulae.F) from windstress averaged to
6647       mass points to avoid tau = 0
6648     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
6649    o rdmnc.m: make it work with "global" files created with gluemnc
6650    o rdmnc.m : some improvements in dealing with singleton dimension
6651      (tested on all testreport mnc output files).
6652    o genmake2: disable pkg/profiles if netcdf test fails.
6653    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
6654    o move call to cal_readparms up to make calendar parameters/variable available
6655      to all packages
6656    
6657    checkpoint58v_post (2007/02/08)
6658    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
6659      useDynP_inEos_Zc tested.
6660    o pkg/exf: changes to properly interpolate/mask/scale initial fields
6661    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
6662      and portions thereof.  See read_cs.txt for description and examples.
6663    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
6664      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
6665      following the great-circle arc between those 2 points.
6666    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
6667      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
6668    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
6669     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
6670     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
6671     - still needs work (not working with some options ; efficiency to improve)
6672       and serious testing.
6673     - use this scheme for temperature & salinity in 2 advection test exp.:
6674       advect_xy & advect_xz, respectively.
6675    
6676    checkpoint58u_post (2007/01/12)
6677    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
6678    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
6679    o testreport: add option "-skipdir" to skip some test.
6680    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
6681      momentum calculation.
6682    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
6683    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
6684      remove checkpoint.F and the_correction_step.F (no longer used);
6685      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
6686    o add option (linFSConserveTr) to correct for tracer source/sink due to
6687      Linear Free surface
6688    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
6689    o pkg/thsice: fix reading mnc-pickups
6690    
6691    checkpoint58t_post (2006/12/30)
6692    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
6693    o pkg/mdsio:
6694     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
6695       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
6696       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
6697     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
6698     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
6699       either MDS_READ_FIELD or MDS_WRITE_FIELD )
6700     - new S/R (to replace MDSWRITEMETA), which allows to write more
6701       informations (variable names, time ...) to meta files.
6702     - modify rdmds.m to give back the meta file content.
6703    o pkg/diagnostics: change vertical interpolation to be safer, and more
6704       flexible (define p-levels to interpolate to in data.diagnostics);
6705      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
6706       diagnostic pointer.
6707    o pkg/seaice: more cleaning up of seaice_growth, added many comments
6708    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
6709    o fix multi-category seaice:
6710     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
6711       SEAICE_MULTICATEGORY
6712     - fix short wave heat flux
6713    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
6714       and allow to use EVP solver. Change forward lab_sea: test both EVP
6715       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
6716    o Initial check-in of lab_sea adjoint
6717      (very similar to natl_box_adjoint/code_seaice)
6718      * used C-grid and EVP solver
6719      * used KPP, GM/Redi
6720      * uses inAdExact=.TRUE.
6721      * gradient checks fail for both ADM and TLM
6722        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
6723        f.d. gradients actually seem more problematic than ADM, TLM gradients;
6724        issue is related to forward mismatch between g77 an ifort
6725    o pkg/seaice: overhaul of thermodynamics
6726     - growth.F and groatb.F are replaced by new routine seaice_growth.F
6727     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
6728     - move a few global fields out of SEAICE.h into seaice_growth.F and
6729       make them 2D (FICE/QNETO/ ...)
6730     - remove FO (it is the same as QNETO)
6731     - introduce a few local fields to avoid modifying external fields such
6732       as atemp, etc.
6733    
6734    checkpoint58s_post (2006/12/11)
6735    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
6736      changed exf_set_gen.F so that
6737        genperiod=0 means input file is one time-constant field and
6738        genperiod=-12 means input file contains 12 monthly means
6739    o CG2D: use pre-computed solver main-diagonal (stored in common block);
6740      this affects truncation error ; generate new output file for exp. which
6741      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
6742        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
6743        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
6744        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
6745        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
6746        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
6747    o start implementation of deep-atmosphere and anelastic formulation
6748    o verification: remove 2nd copy of input files and use script "prepare_run"
6749      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
6750    o mom_common/vecinv/fluxform: fix a few initialisation isssues
6751    o profiles: fix for multithreaded case
6752    
6753    o diagnostics: rename few diags:
6754      s/'PRESSURE'/'RCENTER '/g
6755      s/'TICE    '/'oceFreez'/g
6756      s/'TAUX    '/'oceTAUX '/g
6757      s/'TAUY    '/'oceTAUY '/g
6758      s/'SWFLUX  '/'oceQsw  '/g
6759      s/DIFx/DFxE/g
6760      s/DIFy/DFyE/g
6761      and add few ocean-forcing diagnostics:
6762      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
6763    o modifications to pkg/seaice/growth.F and budget.F, which change results of
6764      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
6765      as actual snow thickness.  It now refers everywhere to effective snow
6766      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
6767    
6768    checkpoint58r_post (2006/11/17)
6769    o modifications to pkg/seaice/growth.F, which change results of
6770      lab_sea experiment: fixes pertain to melting snow over open water, to
6771      masking EVAP under sea ice, and to using the correct AREA variable for
6772      computations of EVAP, PRECIP, HSNOW, and GHEFF
6773    o add ability to read bathy, salt, and theta using MNC (off by def)
6774    o add flooding algorithm and advection of HSNOW for pkg/seaice;
6775      both are turned off by default and do no change any results
6776    o seaice advection with pkg/thsice: a step toward the use of non-linear
6777      advection scheme, but #ifdef or commented out for now (requires more EXCH).
6778    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
6779      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
6780      in natl_box (affects results @ truncation level: update output.txt)
6781    o multi-threading and IO:
6782      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
6783      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
6784        (needed to work with SingleCpuIO): tested in all verif. exp.
6785    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
6786      affects the results (but none of the verification test uses this scheme).
6787    o Adding some pkg/diagnostics capability to pkg/seaice
6788      (will certainly be subject to changes)
6789    o ctrl: adding new control variables:
6790      lwflux, lwdown, evap, snowprecip, apressure, runoff
6791    
6792    checkpoint58q_post (2006/10/20)
6793    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
6794      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
6795      high_res_cube configuration by 4% on Columbia.
6796    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
6797      add (in global_with_exf/code) a version of EXF_INTERP_READ without
6798      dynamical allocation (seems to work in multi-threaded).
6799    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
6800      single CPU io) so that TAF does not have to see EESUPPORT.h
6801    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
6802    
6803    checkpoint58p_post (2006/09/08)
6804    o obcs: stop if obcs is used with useCDscheme = .true.
6805    o shelfice:
6806     - fix a sign error so that no slip at shelfice interface works
6807     - remove stop for combination non-hydrostatic code and shelfice. That does
6808       not mean, that the results are correct, but at least they are numerically
6809       stable
6810    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
6811    o added adjoint exch routined for all exch*3d* routines
6812      and updated flow directives
6813    
6814    checkpoint58o_post (2006/08/28)
6815    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
6816      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
6817    o change controling S/R for writing pickup file (new S/R do_write_pickup)
6818      and clean-up reading/writing of pickup files.
6819    o fix local version of read/write pickup (NH part) in rotating_tank/code
6820    o simplify EXCH interface:
6821     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
6822     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
6823    o added the regrid package
6824    o shelfice:
6825     - add a simple boundary layer scheme to reduce noise
6826     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
6827    
6828    checkpoint58n_post (2006/08/14)
6829    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
6830       local variable (not in common block).
6831    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
6832      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
6833      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
6834        to work with SingleCpuIO.
6835    o add "_d 0" to real constant of pkg/cfc subroutines ;
6836       update exp. cfc_exemple & tutorial_cfc_offline output files.
6837    o multi-threading and IO:
6838      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
6839        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
6840      - barrier before and after reading.
6841      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
6842      - avoid using MDS_WRITELOCAL for LAND pkg output.
6843      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
6844        common-block variables ; Allows multi-threading with master-thread IO.
6845    o change default MAX_NO_THREADS from 32 to 4 ;
6846      and stop cleanly when MAX_NO_THREADS is too small.
6847    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
6848    
6849    checkpoint58m_post (2006/07/17)
6850    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
6851       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
6852    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
6853       keep global_ocean.90x40x15 (for AD testing) with former secondary test
6854       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
6855    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
6856        add MITgcm_tutorials (= code + all the tutorials)
6857    o ecco, option to compute cost for total ssh (mean+anom)
6858    o consistent with addition of ptracer and ssh in pkg/profiles
6859    o profiles: adding ptracer and ssh
6860    o testreport: change multi-test output-file name
6861      (from output.txt.{name} to output.{name}.txt)
6862    o profiles: now ok for mutli-tiles case
6863    o seaice: add 4 parameters for different advection schemes for area,
6864      (effective) seaice thickness, enthalphy, and snow height. Their default
6865      is the standard parameter SEAICEadvScheme
6866    o calc_gw:
6867     - add cosFacU in zonal viscous flux (harmonic.visc.).
6868     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
6869       of tutorial_plume_on_slope.
6870    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
6871    o calc_gw: true flux-form, account for horizontal grid spacing.
6872      update rotating_tank results, but not plume_on_slope (affected at
6873      truncation level, 11 digits).
6874    
6875    checkpoint58l_post (2006/07/12)
6876    o calc_gw:
6877     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
6878     - remove side-drag for now (need to fix it); update plume_on_slope results.
6879     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
6880    o commit code to make SST/SSS weights spatially variable
6881      (based on either variable in-situ or variable initial T/S weights)
6882    o pkg/ecco:
6883      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
6884        now based on horizontally varying weights wthetaLev, wsaltLev
6885      * cost_averagesflags now returns year indices in addition to day, month
6886      * sflux balance is performed on annual basis
6887        (sflxumm, sfluxmm2, bal_sfluxmm)
6888      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
6889        including separate counting and multipliers
6890    o pkg/rbcs
6891      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
6892    
6893    checkpoint58k_post (2006/07/06)
6894    o testreport:
6895     - always build in dir. "build" (if not there, mkdir build instead of building
6896       & running in input)
6897     - run in dir run (if it exists), in build otherwise.
6898     - call prepare_run (if input/prepare_run exists)
6899     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
6900    o pkg/exf modifications to interpolation and rotation routines for more
6901       reasonable treatment of North Pole singularity: for tracers North Pole
6902       value is set to northernmost zonal-mean value, for zonal velocity it is
6903       set to zero, and for meridional velocity it is set to northernmost value.
6904    o pkg/exf/exf_check_range.F
6905     - add tile index to diagnostics and move stop statement to the very
6906       end of the routine.
6907    o pkg/diagnostics: (diagnostics_main_init.F)
6908      define title of isomorphic variables according to the current config.
6909    o pkg/thsice with pkg/seaice dynamics:
6910    - fix domain of computation (interior only, required for exf) and do exchanges
6911    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
6912    o towards a standard way of dealing with multi-threading in MONITOR
6913      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
6914    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
6915       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
6916    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
6917    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
6918    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
6919       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
6920    o tracer advection:
6921     - clean-up and simplify calc_common_factors.F
6922     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
6923       advection subroutine (but still not used within DST advection S/R)
6924    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
6925    
6926    checkpoint58j_post (2006/06/15)
6927    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
6928      from file (collects calls previously in FORWARD_STEP)
6929    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
6930    o adjoint store dir. adjusted accordingly
6931    o genmake2
6932      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
6933    
6934    checkpoint58i_post (2006/06/14)
6935    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
6936      on wind stress (SEAICEstressFactor defaults to 1.)
6937    o Total number of Timers is finite (<=40): comment out 2 non-essential one
6938      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
6939    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
6940      on CS-grid: no longer loosing mass.
6941    o exf & curvilinear-grid: no longer modify longitude xC & xG.
6942    o pkg/ggl90: fix sloppy output and fix a bug
6943    o pkg/seaice: added SEAICEuseEVPpickup parameter
6944      - Set to false in order to start EVP solver with
6945        non-EVP pickup files when using SEAICEuseEVP
6946      - fix sign error in diffusion in seaice_calc_rhs
6947    
6948    checkpoint58h_post (2006/06/07)
6949    * Modifications for bottom topography control
6950      o replace hFacC by _hFacC at various places
6951      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
6952      o add non-self-adjoint cg2d_nsa
6953      o update autodiff support routines
6954      o re-initialise hfac after ctrl_depth_ini
6955      o works for 5x5 box, doesnt work for global_ocean.90x40x15
6956    * Adding verification for 5x5 box (4-layer) bottom topography control
6957    
6958    checkpoint58g_post (2006/06/07)
6959    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
6960       used for mean seasonal cycle, mean diurnal cycle); add an example
6961       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
6962    o pkg/ggl90:
6963      - add parameter (minimum surface kinetic energy)
6964      - fix bug (avoiding division by zero)
6965    o couple pkg/thsice to pkg/seaice:
6966      - modify advection in seaice to accomodate new scalar fields to be advected
6967      - only muliDimAdection scheme work with seaice/thsice
6968      - mapping of thsice-variables to seaice-variables, back and forth
6969      - does not break the verification experiments, but does not give the
6970        desired results either
6971    o pkg/seaice
6972      - make (default) second order advection a bit less confusing?
6973    
6974    checkpoint58f_post (2006/06/05)
6975    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
6976      to pkg/seaice):
6977      - new routines thsice_map_exf and thsice_get_exf provide the interface
6978      - add an additional formal parameter to thsice_solve4temp
6979    o pkg/exf:
6980      - add new fields wspeed, snowprecip (to be able to couple to thsice)
6981      - correct Stefan-Boltzmann constant
6982      - new parameter for longwave surface emittance
6983      - separate some stuff from exf_bulkformulae into new routines  
6984        exf_radiation, exf_wind
6985      - add new parameters and constants: longwave emissivity for ocean, ice
6986        and snow, evaporation parameters over ice
6987      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
6988        either wind from stress or stress from wind
6989    o pkg/thSIce:
6990    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
6991    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
6992       and THSICE_CALC_THICKN
6993    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
6994    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
6995      to make debugging easier.
6996    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
6997    o pkg/bulk_force:
6998      - clean-up comments and parameters ;
6999      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
7000    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
7001      generate new output for test-experiment: aim.5l_cs.thSI
7002    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
7003      testreport accordingly
7004    
7005    checkpoint58e_post (2006/05/17)
7006    o SEAICE_CGRID adjoint done
7007    o R_STAR adjoint implemented.
7008      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
7009      * need to sort out init. of h0facc, etc.
7010    o Make pkg/profile fully independent of ecco,cost, etc. stuff
7011      to be able to use it in pure forward.
7012    
7013    checkpoint58d_post (2006/04/21)
7014    o upgrade simple test-experiment to tutorial example:
7015     step.1: duplicate the experiment and (step.2) will remove the old copy.
7016      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
7017      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
7018      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
7019      tutorial_global_oce_biogeo    <- copy of dic_example
7020      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
7021      tutorial_plume_on_slope       <- copy of plume_on_slope
7022      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
7023      tutorial_global_oce_optim     <- empty for now (David ?)
7024      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
7025     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
7026    o correct a sign problem in cost_scat.F
7027    o obcs and ptracers: fix boundary conditions for advections schemes
7028      with larger stencil
7029    o thsice adjoint: start
7030    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
7031      completeness
7032    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
7033      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
7034    o ptracers adjoint:
7035      * avoid extensive recomputatations
7036      * fix missing re-init. of gptr (missed by TAF)
7037    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
7038      me to turn off the excessive output to STDOUT that this package produces
7039    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
7040      and add those terms in Vector-Invariant formulation.
7041    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
7042      if the control period (xx_hfluxperiod etc) is 0
7043    o in profiles pkg, clean routines and fix details
7044    o in ecco pkg, reading ssh data:
7045      fix problem in case the model does not start at iter0=0
7046    o fix mnc-pickup/restart for ptracers
7047    o new package prifiles:
7048      code to compute profile-based cost by Gael Forget
7049      (modifs in ecco, ctrl, autodiff)
7050    o Benign bug fix in initialization (spotted by M. Mazloff) of
7051      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
7052    
7053    checkpoint58c_post (2006/03/23)
7054    o adjoint: finish NLFS adjoint and provide reference output in
7055      verification/global_ocean.90x40x15/results_ad_nlfs
7056    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
7057      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
7058      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
7059      with SEAICE_CGRID defined.
7060    o move calendarDumps from "data" to "data.cal" and clean-up the code
7061      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
7062    o add useEXF & useCAL flags (for now, set in hard-coded way)
7063    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
7064      (were missing in NH mode, and wrong in quasihydrostatic mode).
7065      waiting for Chris updated version of calc_gw to add those CALLs.
7066    o fix bug in quasihydrostatic S/R ;
7067      add a test for this option: global_ocean.90x40x15.qshyd
7068    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
7069      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
7070    o add on/off flag useOffLine for package OFFLINE
7071    o seaice:
7072      - modify advection so that it works also on the C-grid
7073      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
7074        problem in multi-tile runs with C-grid
7075      - add flags for clipping ice velocities and/or masking solver forcing
7076      - fix drag (ocean on ice) formulation and a bug that caused noise in the
7077        C-grid solver
7078      - added a few comments to seaice_diffusion.F
7079      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
7080        are now exclusive)
7081      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
7082        required re-ordering the code a little:
7083       + make DAIRN global variable (defined in SEAICE)
7084       + move computation of the viscosities eta and zeta into a new separate
7085         routine (because I need to recompute them in seaice_ocean_stress.F)
7086    
7087    checkpoint58b_post (2006/03/13)
7088    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
7089      update output.txt of exp. aim.5l_cs.thSI
7090    o various mnc cleanups and improvements:
7091      + shrink lookup tables by factor of ~4
7092      + better error reporting when running out of lookup space
7093      + able to handle longer path/file names (up to 500 chars)
7094    o adjoint:
7095      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
7096      - TBD: "hidden" mom_vecinv recomp. in dynamics
7097    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
7098     (allow to differentiate between forcing components using new integer flags:
7099      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
7100     and add new flag to put Dissipation tendency out of Adams-Bashforth.
7101    o ecco
7102      - enable trend removal from SSH anomaly obs.
7103    o adjoint
7104      - a fix for PmEpR when #undef EXACT_CONSERV
7105      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
7106      - try to fix "hidden" recomp. in forward_step for NLFS
7107        (NLFS seems broken sometimes after I checked it in)
7108    o seaice:
7109     - add c-grid version of the dynamic solver:
7110       + three new routines that are the c-grid substitute lsr, dynsolver
7111         and ostres
7112       + put a few fields that were local to dynsolver into global common
7113         blocks, so that I can move the computation of stresses etc into
7114         seaice_lsr (saves coding but may break the adjoint).
7115     - replace more hardwired parameters by runtime parameters
7116     - add ice masks that mask the rhs of the implicit solvers where there
7117       is no ice (commented out in seaice_dynsolver, because i am not sure
7118       if this works properly), eventually this should replace the clipping
7119       of ice velocities in seaice_dynsolver to +/-40cm/s.
7120    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
7121      include it only where its needed
7122    o move balancing of fluxes before the call of external_forcing_surf
7123    o seaice:
7124      - correct units of turning angles (now they are really in degrees)
7125      - move computation of GWATX/Y out of main routine into dynsolver
7126      - initialize GWATX/Y in seaice_init
7127    o Apply mask on Fresh-Water flux (needed for SSH forcing).
7128      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
7129    o seaice: add runtime flags for turning angles (default to zero)
7130    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
7131      and trend from exf forcing and ctrl control adjustments
7132    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
7133      (since checkpoint57x_post)
7134    o change the default rotation period to 86164.s = the Earth rotation
7135    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
7136      and based on a reference stratification. Tested within hs94.cs-32x32x5.
7137    o seaice advection: add code for choosing between the default (2nd order
7138      central differences) and multiDim advection schemes provided by
7139      pkg/generic_advdiff
7140    o seaice:
7141      - removed all references to SEAICE_GRID.h fields from
7142        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
7143        (cubed-sphere configuration will change a little)
7144      - grid computations in seaice_init are obsolete now.
7145      - cleaned up code a little so that is easier to read (hopefully).
7146      - added new (better?) discretizations of default advection and diffusion
7147        (turn on with SEAICEuseFluxForm)
7148      - replace 1 in 3d global fields by kSurface in growth.F
7149      
7150    checkpoint58a_post (2006/02/13)
7151    o seaice:
7152      - bug fix in advect.F
7153    o shelfice:
7154      - separate shelfice load anomaly from pload (breaks with time
7155        dependent forcing), => introduce constant field shelficeLoadAnomaly.
7156        Its default is 0., but it may be computed more cleverly from (unknown)
7157        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
7158        done offline. A good approximation of the pressure load anomaly is
7159        necessary to avoid large initial adjustment processes underneath
7160        deep-reaching shelfice.
7161      - small fix in ISOMIP shelfice_thermodynamics
7162      - add more sophisticated thermodynamics of Hellmer (1989), this is
7163        now the default
7164      - give a few constants more intuitive names
7165    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
7166      if bulk formulae are used in long integration (especially EmPmR). Turn
7167      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
7168      if balancePrintMean, the imbalance that is substracted is printed to
7169      STDOUT.
7170    o fix bug (typo) in obcs_apply_eta.F
7171    o add a new package shelfice which enables us to model the circulation
7172      underneath shelf-ice with draughts of hundreds of meters.
7173     - works
7174     - to do: + include improved thermodynamics
7175              + check whether kSurfC (from model/inc/SURFACE.h) can be used
7176                instead of new field kTopC
7177              + can we use topoFile, Ro_surf and existing code in ini_depth.F
7178                instead of new field R_shelfIce and new code in ini_depth.F
7179                and ini_mask_etc.F?
7180              + adjust vertical mixing schemes?
7181    o seaice pkg:
7182     - add a cpp-flag to include a simple formula for a salinity dependent
7183       freezing point of sea water at the surface
7184     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
7185       meridional stresses are now different (and hopefully correct)
7186    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
7187       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
7188       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
7189    o pkg/diagnostics: add options and parameters for regional-statistics
7190       diagnostics ; define regions by reading a region-mask from a file
7191       (might add other options later)
7192    o pkg/bulk_force:
7193     - add option and parameters to use AIM surface-flux formulae.
7194     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
7195       others forcing fields (defined in PARM05, parameter file "data") are loaded
7196       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
7197     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
7198     - use the right EXCH call for uwind,vwind (to work on CS-grid).
7199     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
7200       and parameters (note: calcWindStress replaces .NOT.readwindstress).
7201     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
7202    
7203    checkpoint58 (2006/01/12)
7204    o add "--embed-source" option to genmake2 which, when the supporting
7205      tools can be compiled (as determined by genmake2) will turn on the
7206      embed_files package which then embeds the entire MITgcm source code
7207      (*.[fFhc] + Makefile) used for the build within the executable
7208      - requested by CNH but off by default
7209      - adds a paltry <9MB to the mitgcmuv executable in most cases
7210      - only writes the output when useEMBEDSRC in eedata is true
7211    o clean up 3-dim. relaxation codes:
7212      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
7213      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
7214      * Thanks to Tom Haine for testing!
7215    
7216    checkpoint57z_post (2005/12/31)
7217    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
7218      affects output (@ truncation level) of exp. plume_on_slope ; updated.
7219    o fix the pickup behavior for obcs in combination with ptracers
7220    o fix a bug in ptracers_external_fields_load
7221    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
7222      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
7223    o transfered surface NH pressure to eta field (if exactConserv).
7224    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
7225         and update lab_sea output.txt file.
7226    o completing 3-dim. relaxation code: additional term
7227         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
7228      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
7229      * At compile time, in "EXF_OPTIONS.h" set
7230          #define  ALLOW_CLIMTEMP_RELAXATION
7231          #define  ALLOW_CLIMSALT_RELAXATION
7232      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
7233          tauThetaClimRelax3Dim = 15552000.0,
7234          tauSaltClimRelax3Dim  = 15552000.0,
7235      * 3 cases:
7236          1) Use a constant-in-time 3-dim. field
7237          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
7238          3) Real-time relax. to time-evolving prescribed field
7239    o Adding Laplacian-type smoothness constraint on
7240      initial and boundary (forcing) controls (ic, bc)
7241      * enable at compile-time via
7242        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
7243      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
7244      * Absolute scale somewhat unclear so far
7245      * no area weighting was included since no other cost term does so far
7246    
7247    checkpoint57y_post (2005/12/08)
7248    First step for a NLFS adjoint
7249    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
7250    o new init. routines for calc_r_star, calc_surf_dr
7251    o still need to deal with ini_masks_etc
7252    o testreport seemed happy
7253    checkpoint57y_pre (2005/12/08)
7254    
7255    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
7256    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
7257    o add new offset feature to offline pkg (plus minor cleanup)
7258    o cfc fixes for final year of integration
7259    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
7260      be in GCHEM_OPTIONS).
7261    
7262    checkpoint57x_post (2005/12/04)
7263    o fix testreport Pb in multiple test experiment.
7264    o cleanup our namelist syntax in verification:
7265      - make it more F95 standards compliant (some work still needed)
7266      - allows the vast majority of our tests to work with gfortran
7267    o Non-Hydrostatic:
7268     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
7269     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
7270    o Allow to apply AB on T,S rather than on AB(gT,gS):
7271     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
7272     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
7273       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
7274     - need a "clever" read_pickup to restart from the other AB formulation
7275    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
7276    o remove some unused variables (reduces number of compiler warnings)
7277    o adjoint
7278      * Disable useVariableViscosity for adjoint for time being
7279        (there are a number of extensive recomputations)
7280      * Initialize certain variables needed for adjoint
7281    
7282    checkpoint57w_post (2005/11/03)
7283    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
7284                 fix the singleCpuIO RS version of MDSWRITEFIELD
7285       and add a WARNING if using globalFiles=T with multi-processors.
7286    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
7287      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
7288    o tracer advection scheme:
7289      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
7290       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
7291       was not very convenient).
7292      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
7293       (further tests needed for the implicit DST & Flux-Limiter schemes).
7294    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
7295      and sRef for convenience, handy, when you want to initialize
7296      ptracers in a large domain with a constant non-zero value. Also,
7297      untangle ptracers_init.F a little.
7298    
7299    checkpoint57v_post (2005/10/13)
7300    o change dome exp. to use variable viscosity in side-drag terms.
7301    o remove all the files from the cfc_offline test since they are now
7302      incorporated into tutorial_cfc_offline which has been producing
7303      identical results for a few days of testing
7304    o add new parameter: sideDragFactor to enable half-slip-side BC
7305      and change side-drag S/R to use viscosity from mom_calc_visc
7306      (can switch back by setting sideDragFactor=0.); affects results at
7307      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
7308       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
7309    o vorticity & strain are now computed without masking, to account for
7310      no-slip-side BC in variable viscosity calculation ; mask is applied
7311      anyway later on, before computing advection/coriolis terms.
7312    o modify exp4 to test new obcs support for reading from external files
7313      and for passive tracers
7314    o fix behavior of ptracers_monitor when monitor output is written to a
7315      netcdf-file; still not independent of monitor.F (writes in the same
7316      file).
7317    o change default value of tRef (put a uniform, meaningful value for ocean
7318      & atmos) and initialize sRef (was missing, as Martin mentioned).
7319    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
7320      to be proportional to enstrophy dissipation length.  Thus,
7321       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
7322      This is now consistent with Smagorinsky and with the manual.
7323    
7324    checkpoint57u_post
7325    o OBCS and PTRACERS: add open boundary support for passive tracers
7326      - either use homogenous (pseudo) v.Neumann conditions or prescribe
7327        OB-values from file; this is not different from the way theta and salinity
7328        are treated
7329      - however, Orlanski-radiation conditions are not supported, and the model
7330        will stop if you use pTracers and Orlanski at the same time.
7331      - beefed up the rountine obcs_external_fields_load: now only those open
7332        boundary values are overwritten with values from files for which there
7333        are really files, otherwise the OB-fields remain untouched. This makes
7334        it possible to use different OBs at different ends of the domain (as
7335        with EXF)
7336    o reduce number of exch calls in shap_filt (s2).
7337    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
7338      truncation level) 4/5 MLAdjust test results (11&12 digits match).
7339    
7340    checkpoint57t_post (2005/10/03)
7341    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
7342    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
7343      same truncation, independent of the face number: affects affects several
7344      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
7345    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
7346      note that biharmonic viscosity + no-slip was not tested in any experiment.
7347    o fix bug in non-linear free-surf side-drag ; generate new output for
7348      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
7349    o make mnc honor the writeBinaryPrec flag for most kinds of output
7350    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
7351    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
7352      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
7353    o add brackets in multi-terms sum to get same truncation, independent of
7354      the face number (manage to get exactly same value of gU,gV at the cs-edge)
7355      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
7356    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
7357      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
7358      a maximum grid-scale Reynolds number.  Also, changes all length calculations
7359      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
7360      Suggested values of viscosity parameters found in mom_calc_visc.
7361      Many new viscosity diagnostics available.
7362    
7363    checkpoint57s_post (2005/09/20)
7364    o Add clearing-house for viscosity calculations, mom_calc_visc and
7365      correct numerous bugs in LeithD and Smagorinsky discretizations.  
7366      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
7367      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
7368      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
7369      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
7370      The Strain-Tension form is now called with useStrainTensonVisc=.true.
7371      ViscAhStrain and viscAhTension are now retired.
7372    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
7373    o In response to JMC's bug report, genmake2 now ignores any soft-links
7374      that it finds in the *current* directory when searching for files.
7375      Soft-links found in any other source directories will still work as
7376      they did before.
7377    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
7378      a C routine to unlimit the stack size
7379    o mnc-ify pkg/aim snapshot vars
7380    o mnc-ify pkg/land as requested by Daniel
7381    o various changes to mnc including:
7382      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
7383      - output can now be grouped so that all files within a group
7384          change the ITER portion of their names in lock-step together
7385      - can now read ("global") PER-FACE (in addition to PER-TILE) files
7386          and works with both EXCH1 and EXCH2 (but needs more testing)
7387      - writing works for all verification test cases w/ g77 on Linux
7388    
7389    checkpoint57r_post (2005/09/07)
7390    o make MNC variable initialization happen earlier
7391    o add diagnostics for (almost) each term of the momentum Eq.
7392    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
7393    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
7394    o remove MINIMAL_TAVE_OUTPUT option ;
7395      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
7396    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
7397      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
7398    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
7399    o add time-dependent SST, SSS control
7400    o cost terms in ecco/ modularized (new cost_generic.F)
7401    o cost_averages routines are modularized (new cost_averagesgeneric.F)
7402    o new infrastructure for seaice model vs. obs misfits in seaice/
7403      * driver from the_main_loop.F is seaice_cost_driver.F
7404      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
7405      * gradient check in Exp. 6a of natl_box_adjoint/
7406    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
7407      (see README file)
7408    
7409    checkpoint57q_post (2005/08/19)
7410    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
7411    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
7412      - bug was reported by Jean-Michel and Ian Fenty
7413    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
7414      update exp. cpl_aim+ocn output.
7415    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
7416      Needed for high-res. runs with large global files
7417      to be able to limit tapelev size
7418    o Changed some tests for adjoint:
7419      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
7420      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
7421      * global_ocean.90x40x15/ back to default 3-level checkpointing
7422    o Modifications to enable scripted COMMON to MODULE conversion
7423      * verification/OpenAD/code/ has necessary scripts and description;
7424      * converts, compiles and runs successfully;
7425    
7426    checkpoint57p_post (2005/08/01)
7427    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
7428    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
7429      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
7430    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
7431    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
7432      (was already the case for dissipation with mom_vecinv,
7433       and also the case for grad.PhiHyd when staggered-timeStep)
7434      This will allow to put dissipation out-off the AB time-stepping.
7435     Unfortunately, affects truncation error. Update output of exp. that "fails"
7436      (cg2d matching number) and leave the others for later: front_relax(10),
7437      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
7438      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
7439    
7440    checkpoint57o_post (2005/07/30)
7441    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
7442      (2) its ready to be documented during the 20050801 DocFest
7443    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
7444      for ideal_2D_oce and lab_sea on linux_ia32_g77
7445    o set to #undef CTRL_SET_OLD_MAXCVARS_30
7446      in global1x1_tot/code_seaice_adj to access indices 32, 33
7447      (worth another tag)
7448    
7449    checkpoint57n_post (2005/07/29)
7450    o adding precip control xx_precip 32
7451    o adding swflux control xx_swflux 33
7452    o Replacing 10 forcing penalty cost routines by 1 generic.
7453    o Implementing partitioning in time-mean and variable adjustment
7454      for atmos. state.
7455    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
7456    o in natl_box_adjoint:
7457      * updated exp 1 to 10
7458        (but does not have time-mean vs. variable split results yet)
7459    o updated global1x1/*_seaice_adj/
7460      to incorporate latest changes
7461    o enable useSingleCpuIO for mdsio vector routines
7462      (applies in particular to tapelev I/O)
7463    o removed inefficient K-loop in all active_file*control*.F
7464    
7465    checkpoint57m_post (2005/07/28)
7466    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
7467      and advect_cs (use EXCH-2 and standard cs-32 grid files).
7468    o pkg/exch2: filling of face-corner halo regions is optional
7469      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
7470    
7471    checkpoint57l_post (2005/07/14)
7472     tag before updating tutorials (pre-release-2)
7473    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
7474       for output and interpolation of input fields onto model grid)
7475    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
7476       Affects results of exp. rotating_tank ; update output.txt.
7477    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
7478          and taking the square quantity and/or using a fraction-weight field.
7479    o fix aim_diagnostics_init.F mate numbers.
7480    o add mnc output capability to diagnostics/diagstat and update
7481      our cvsignore files for the ACSII output generated
7482    
7483    checkpoint57k_post (2005/07/02)
7484    o lab_sea now uses diagnostics package and provides a suite of
7485      new EXF diagnostics output.
7486    
7487    checkpoint57j_post (2005/06/30)
7488    o exf
7489      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
7490        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
7491        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
7492      * extended diagnostics output
7493        - now includes all EXF variables
7494        - hs, hl moved to common block
7495        - separate S/R for diagnostics, called after ctrl vector is added
7496        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
7497        - EXFqnet contains true Qnet (i.e. includes qsw)
7498      * updated verif. lab_sea, global_with_exf
7499      * Rearranging hflux (exf_mapfields -> exf_getforcing)
7500        to ensure that diagnostics sees a true EXFqnet
7501    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
7502    o diagnostics pkg: change pointers so that 1 diagnostic can be used
7503      several times with different frequencies.
7504    o mnc-ify the thsice package as requested by Daniel Enderton
7505      - the monitor--MNC output needs work
7506      - many attributes need to be added (most are currently blank)
7507    o mnc-ify theaim_v23 package as requested by Daniel Enderton
7508      - many attributes need to be added (most are currently blank)
7509    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
7510    o add Sadourny like discretization to the 4th.O vorticity advection scheme
7511    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
7512      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
7513         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
7514    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
7515     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
7516    
7517    checkpoint57i_post (2005/06/19)
7518    o Diagnostics package was changed: diagnostic allocation is now deactivated
7519      by setting an empty file name in the namelist (used to be by setting 0 frequency)
7520    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
7521      add 1rst Order upwind vertical Shear.
7522    o add a quick fix for A/B checkpointing in OFFLINE mode
7523    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
7524      end-run around the C/Fortran linking horror in eesup/src/timers.F
7525    o added pkg/runclock: allows user to terminate run based on wall clock
7526    o added non-hydrostatic scaling parameter: nh_am2
7527    o pkg/my82: futile attempt to make results compiler-independent by adding
7528      some "_d 0", etc. no effect.
7529    o for mnc output, fill the 'T' coordinate var with myTime and create a
7530      separate 'iter' variable for iteration count
7531    o pkg/diagnostics:
7532      add new capability: output of Global/Regional & per-level statistics ;
7533      tested against monitor output (including land & thSIce) on various exp.
7534    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
7535    
7536    checkpoint57h_done (2005/05/19)
7537      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
7538      data.diagnostics, data.gchem, data.ptracers) is done.
7539    
7540    o pkg/diagnostics: prepare for Global/Regional statistics.
7541      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
7542    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
7543      and rename it: DIFFERENT_MULTIPLE
7544    
7545    checkpoint57h_post (2005/05/14)
7546    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
7547    o pkg/diagnostics: change output frequency, now in seconds (instead
7548      of Nb of iterations). This requires to change data.diagnostics.
7549    checkpoint57h_pre (2005/05/12)
7550    
7551    o in mnc, let the user create the output dir if both mnc_outdir_date
7552      and mnc_outdir_num are false
7553    o add fflags() to pkg/diagnostics which allows one to specify, on a
7554      per-file basis, the file precision [default behavior is unchanged]
7555    o added diagnostics to pkg/kpp, including computation of mixed layer
7556      depth based on a temperature/density criterion
7557    o updated verification/natl_box to test the new pkg/kpp diagnostics
7558    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
7559    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
7560    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
7561      not mnc -- this mistake was found by JMC and is now corrected
7562    
7563    checkpoint57g_post (2005/04/15)
7564    o add Adams-Bashforth 3rd Order time stepping:
7565      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
7566      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
7567    checkpoint57g_pre (2005/04/15)
7568    
7569    o make lambda[Theta,Salt]ClimRelax spatially varying
7570      (default remains spatially uniform constant based on tau)
7571    o added new control variables
7572      * init. uVel, vVel, etanN
7573      * lambda[Theta,Salt]ClimRelax
7574    o separate masks used for ctrl_pack/unpack 'from write_grid' output
7575      (suggested by G. Forget)
7576    
7577    checkpoint57f_post (2005/04/06)
7578    o add parameter "baseTime" = model base time = time at iteration zero
7579      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
7580      account for baseTime shift
7581    o move Coriolis arrays from PARAMS.h to GRID.h
7582    checkpoint57f_pre (2005/04/06)
7583    
7584    o mnc-ifying the seaice package
7585    o introduced an alternative length scale calculation for use in the limiting
7586      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
7587    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
7588    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
7589      as well as grad(vort3).  Made it compatible with both approximate form
7590      for the cubed sphere and full form of these gradients.  Added flag
7591      useFullLeith to select between approximate and full form.  
7592    o add "d0" in getcon.F to reduce differences between compilers/platforms
7593      update output.txt of exp. fizhi-gridalt-hs
7594    o change port_rand funtion to allow to set the seed.
7595    o fix obscure MNC bug involving conversion between reals and integers
7596      - it caused no problems with certain (eg. gcc, ifc) compilers but the
7597        new version is now more standards-compliant
7598    o adjoint-related modifications
7599      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
7600      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
7601      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
7602    
7603    checkpoint57e_post (2005/02/28)
7604    o Adding eddy stress controls a la Ferreira et al.
7605    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
7606    
7607    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
7608      update output.txt of exp. fizhi-gridalt-hs
7609    o add more "Z" dimensions and associated coordinate vars to MNC
7610    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
7611    o parameter calendarDumps: when set, approximate months (30-31 days) and years
7612      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
7613      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
7614      months and years.  Requires pkg/cal.
7615    o diagnostics: add pickup functionality
7616      - off by default for backwards compatibility
7617      - current version only uses MDSIO -- MNC will be added
7618    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
7619    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
7620    
7621    checkpoint57d_post (2005/02/11)
7622    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
7623    o modify verification/ideal_2D_oce so that it tests the creation of mnc
7624      output from the diagnostics package
7625    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
7626    o make genmake2 more portable by using ".$FS" instead of ".f" for more
7627      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
7628    o add coordinate variables to the MNC output from the diagnostics package
7629    o change MNC-flags default value: true when useMNC=TRUE
7630    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
7631      the ability (off by default) to read the grid information using MNC
7632    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
7633    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
7634    o do snap-shot diagnostics at the middle of the time-interval (instead of
7635      at the end).
7636    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
7637      new test for AIM with thSIce + slab-ocean
7638    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
7639    o move state variable diagnostics to the beginning of the time step ;
7640      (note: still needs some work specially for snap-shot diagnostics)
7641      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
7642    
7643    checkpoint57c_post (2005/01/27)
7644    o Change testing option (-ieee) to get closer agreement between g77 & ifort
7645    o generate new output.txt files on faulks with g77 & the new -ieee option
7646    checkpoint57c_pre (2005/01/27)
7647    
7648    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
7649      update output.txt of exp. global_ocean.90x40x15
7650    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
7651      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
7652    o add saltFlux(+File) forcing capability with periodicExternalForcing
7653    o allow to use pkg diagnostics for GM-Redi & ThSIce output
7654    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
7655    o improvements for the MNC output from DIAGNOSTICS:
7656      - correct handling of the unlimitied dimension
7657      - all dims now have associated coordinate variables
7658      - variables located at U, V, and Corner ("Z") points are now written
7659        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
7660        *all* data points are output
7661    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
7662    o added pkg/seaice/seaice_monitor.F
7663    o mdsio_readfield.F can now read files visible only to master MPI process.
7664    o pkg/seaice: some test code for ice-modified ocean stress
7665    o exf_getffields interpolation defaults to bilinear for all scalar forcing
7666      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
7667      spurious negative numbers for precipitation and humidity.  Will cause
7668      some small numerical differences for integrations using pkg/exf/exf_interp.F.
7669    o pkg/ctrl/
7670      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
7671        May be enabled via doPackDiag
7672      *  introduce z-scaling of
7673         + gradient (doZscalePack) and
7674         + control (doZscaleUnpack)
7675    o pkg/mdsio/
7676      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
7677      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
7678    
7679    checkpoint57b_post (2004/12/20)
7680    o simplify options in diagnostics_fill arguments (remove weird combinations)
7681    o fix MNC coordinate variables so that they now contain per-face index
7682      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
7683      general, EXCH2 grids are only aligned to a "local" coordinate system
7684    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
7685    o Implement instantaneous output within pkg diagnostics:
7686      setting a negative frequency in data.diagnostics produces
7687     "snap-shot" output (as opposed to time-average if freq > 0)
7688    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
7689      NOTE: change ptracer diagnostics name: use 2 characters to work with
7690            more than 9 tracers. Add also diagnostics of advect & diffus flux.
7691    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
7692      becomes the coordinate variable for the 'T' dimension
7693    o add CF-style coordinate variables to MNC
7694      - just a first cut:  numbers are meaningless on the cubesphere and
7695        missing along the T axis but otherwise it works!
7696    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
7697    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
7698    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
7699      this is based directly on what the model compute, so that the content of
7700      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
7701    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
7702    o clean up build options files for SunOS, in particular
7703      - remove -traditional from xmakedepend
7704      - change -xarch=v9 to -xarch=native for f77
7705      - restore use of make (not gmake)
7706      - add CC=gcc if using g77
7707    o changes per discussion of AM, JMC, & EH3 today:
7708      - move redundant "grid" variables out of "state" -- in preparation of
7709        creating proper CF-style coordinate variables and in recognition
7710        that any/all grid variables can be easily copied (eg. w/NCO) from
7711        the grid files into any of the other NetCDF files
7712      - *always* output grid variables with MDSIO (this will eventually be
7713        changed)
7714      - output MNC grid file if useMNC is true
7715    o every instance of _END_MASTER() has been found and replaced with
7716      _END_MASTER( myThid ) in order to satisfy certain picky Sun
7717      preprocessors
7718    o re-arrange diagnostics pkg initialisation:
7719     - allow each package to extend the available diagnostics list
7720     - add some checking and fix small problems (multi-threaded, ...)
7721     - new S/R diagnostics_fill (replace fill_diagnostics):
7722       look through the short list of active diag. (instead of the long list)
7723       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
7724    
7725    checkpoint57a_post (2004/12/10)
7726    o this set of changes restores TAMC compatibility
7727      tested for global_ocean.90x40x15 adjoint on trough
7728      (what a pain)
7729    
7730    checkpoint57a_pre (2004/12/10)
7731    o some modifs in tools/build_options for sunos
7732    o call ctrl_pack for ctrl at end for optimcycle=0
7733    
7734    checkpoint57 (2004/12/09)
7735    o add horizontal bi-harmonic viscosity for vertical velocity
7736      - new parameter viscA4W (defaults to viscA4)
7737      - affects only non-hydrostatic code
7738      - to be done: no-slip lateral boundary conditions
7739    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
7740    o implement Implicit Vertical advection for pTracers
7741    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
7742      (implemented also for implicit vertical diffusion & advection)
7743    o OBCS: extend application of tracer open boundary conditions
7744      to a strip beyond the boundary of width Olx/Oly
7745    o add call monitor to TAF set of required calls (flow directives)
7746      and include in natl_box_adjoint
7747    o untangle a few ifdefs related to cost, ctrl, autodiff
7748      untangel a few ALLOW_ECCO_OPTIMIZATION
7749    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
7750      (theta2, salt2 in ecco_cost_weights)
7751    
7752    checkpoint56c_post (2004/12/03)
7753    o OBCS as control variables
7754      - update ctrl_ad_diff.list, obcs_ad_diff.list
7755      - remove balance of obcs controls from default
7756      - fix index bug nobcs in ctrl_init
7757      - fix dummy fields filen in ctrl_pack
7758      - add dummy weights for obcs
7759    o lsopt: comment out fort.94 output
7760    o optim:
7761      - remove unnecessary header files
7762      - adjusted namelists
7763      - add xerbla.F to Makefile
7764    o exf:
7765      - multiple modifications of exf_check_range
7766      - unit change in exf_init_runoff from [m/year] to [m/s]
7767    o mdsio:
7768      - i/o-vector change debugLevel from debLevA to debLevB
7769    
7770    checkpoint56b_post (2004/12/01)
7771    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
7772      is called from DO_THE_MODEL_IO
7773      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
7774      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
7775      - clean up PTRACERS_WRITE_TIMEAVE a little
7776    o add another verification experiment that tests both the cfc-pkg and
7777      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
7778      reactive tendencies treated inline with regular timestepping
7779    o testreport previously did a lousy job of comparing small numbers, so
7780      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
7781      implemented in the little c-progam tmp_cmpnum.c which is embedded in
7782      testreport.
7783    o ptracers_monitor: bug fix for MPI
7784    
7785    checkpoint56a_post (2004/11/28)
7786    o GCHEM: finish reorganizating the package
7787      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
7788        (introduces another 3D-array for each passive tracer, but only if
7789        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
7790        gchemTendency is not needed because the timestep is done separately)
7791      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
7792      - GCHEM is now---more or less cleanly---separate from PTRACERS
7793      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
7794        so clear to me how that should be done in a general way.
7795    o CFC: improve formatting of output in CFC_ATMOS
7796    o PTRACERS:
7797      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
7798        that ALL experiments with ptracers enable can be checked. This makes
7799        GCHEM_MONITOR obsolete.
7800      - include a runtime parameter PTRACERS_monitorFreq that defaults to
7801        monitorFreq
7802      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
7803    o add PTRACERS (PTR0[1-5]) to testreport output
7804    o exf_check_range:
7805      * default changed to .TRUE.
7806      * will check values for niter0 if debLevA, every timestep if debLevB
7807      * STOP in exf_check_range if 'out of range'
7808      * range chosen generous to allow for potential extema
7809      TBD: a version with stricter range
7810           permitted range would be runtime parameters
7811    o GMredi:
7812      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
7813      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
7814      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
7815    o GCHEM:
7816      - move call to GCHEM_FORCING_SEP, so that it is now called before
7817        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
7818      - introduced a useGCHEM runtime flag and applied it everywhere.
7819      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
7820        this flag is now only visible within GCHEM-pkg routines.
7821      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
7822        be replaced by a 3D array that is computed before thermodynamics; for
7823        this, the tracer ID iTracer had to be included into the parameter list
7824        of ptracers_forcing
7825      - set up forward_step to call gchem_forcing, that will replace
7826        gchem_forcing_int in ptracers_forcing
7827      - cleaning up
7828    o small cleaning of exch2: remove files that are also in eesupp/src
7829    
7830    checkpoint56 (2004/11/17)
7831    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
7832    o mnc: cleanup "full" files--fixes out-of-memory problem
7833    o ECCO-GODAE
7834      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
7835      * fully merged and updated from SIO code
7836        windstress sign change affects
7837        - exf_inscal_[u/v]stress
7838        - sign of xx_tau[u/v] adjustments
7839        - signs in cost_scat
7840      * ctrl_get_gen: avoid update of tau[u/v] for first few days
7841      * natl_box_adjoint updated and compressed
7842      * 2-level checkpoint switch added
7843        (tested in EXP. 1 of natl_box_adjoint)
7844      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
7845    o SVD
7846      * first complete, non-hacked version for SVD calculations
7847      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
7848        performed via direct access files admtlm_vector.it????
7849        (via ctrl_[un]pack)
7850      * optimcycle is used for ARPACK iteration counter
7851        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
7852      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
7853        and add linear transforms where necessary
7854      * controls are initial/final SST, SSS (can be extended; need to check
7855        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
7856    o mdsio: filename info to both stderr, stdout
7857    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
7858      from sign change
7859    
7860    checkpoint55j_post (2004/11/10)
7861    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
7862      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
7863    o add consistent build directories and .cvsignore files to verification
7864    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
7865    o make all subroutines 30 or less characters in length for certain older
7866      compilers to work (a thorough search only turns up two routines in
7867      pkg/ptracers)
7868    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
7869      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
7870    
7871    checkpoint55i_post (2004/10/28)
7872    o change arrays for total vertical diffusivity (2.D if explicit,
7873      3.D if implicit) ; each ptracer uses its own background value.
7874    o added mnc/NetCDF output capability to ocn_compon_interf
7875      - added bits to verification/cpl_aim+ocn so that it can run on
7876        ITRDA and other clusters without the mpirun "-wd" option
7877    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
7878      configuration
7879    o give MNC the ability to create additional files rather than
7880      exceeding a specified file size limit "MNC_MAX_FILESIZE"
7881      - the default is just less than 2GB which is a practical limit
7882        on many systems
7883    o Compute the non-local term using either KPP vertical diffusivity (=default)
7884       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
7885    
7886    checkpoint55h_post (2004/10/20)
7887    o add verification test "vermix"
7888    o remove all the *_ioinc flags and replace with the single global
7889      outputTypesInclusive flag
7890    o allow to set a vertical profile of vertical diffusivity for T & S
7891    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
7892    o useMNC moved from data.mnc to data.pkg
7893    
7894    checkpoint55g_post (2004/10/14)
7895    o Renaming carbon AD experiments to comply with testreport conventions
7896    o Updating adjoint of Held-Suarez hs94.1x64x5
7897    o Fixing directives for non-ECCO forward_step, after ECCO directives
7898      have been fixed to avoid recomp. of do_oceanic_phys
7899      Works well for global_ocean.90x40x15,
7900      but recomp. issue remains for carbon
7901    o Updating adjoint output for natl_box_adjoint after
7902      pkg/ecco has been modified (see taga c55d_post)
7903    
7904    checkpoint55f_post (2004/10/13)
7905    o rename to timeave_init_fixed
7906    
7907    checkpoint55e_post (2004/10/13)
7908    o some delicate re-shuffle of store directives to avoid one
7909      extra call of do_oceanic_physics
7910      affects ecco_the_main_loop.F, do_oceanic_physics.F
7911      checkpoint_lev1_directives.h
7912    o NB: this may break global_ocean adjoint temporarily,
7913      but it is clear how to fix it. Will do later, need this now.
7914    
7915    checkpoint55d_post (2004/10/11)
7916    o ECCO specific cost function terms (up-to-date with 1x1 runs)
7917    o ecco_cost_weights is modified to 1x1 runs
7918    o modifs to allow observations to be read in as
7919      single file or yearly files
7920    o enable to read exf forcing fields as either
7921      single file or yearly files (flag useExfYearlyFields)
7922    checkpoint55d_pre (2004/10/08)
7923    
7924    o switch between 2-level and 3-level checkpointing
7925    o add ability of MNC to write local and "partial" (eg. 2D slices where
7926      the full 3D field is never actually stored) arrays to NetCDF files
7927      with the correct (that is, the complete multi-dimensional) set of
7928      array indicies
7929      - used in mom_vecinv() to write the diagFreq output
7930      - tested (demonstrated) in verification/aim.5l_cs
7931    o further mnc-ification
7932      - add verification/lab_sea to the list with mnc setups
7933      - fix undefined mnc v-names in cd_code
7934      - add kpp to mnc output (both snapshot and timeave)
7935    o non-hydrostatic code
7936      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
7937        in calc_gw.F
7938      - defaults to viscAh
7939      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
7940        friction or Leith) in non-hydrostatic mode, as long as there is
7941        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
7942    o pkg/cost
7943      extend simple cost functions to treat time mean quantities
7944      (T,U,V) via cost_accumulate_state from cost_tile
7945    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
7946        be 2 times larger than the minimum size the advection scheme requires.
7947        now get a perfect conservation of salt in advect_cs test-exp (updated)
7948    o GGL90 (Gaspar's TKE mixed layer)
7949      - add horizontal diffusion of TKE, requires exchanges in
7950        do_fields_blocking_exchanges, horizontal diffusivity is zero by
7951        default. In OPA there is no horizontal diffusion of TKE but the
7952        mixing coefficients are computed from a horizontal average of TKE of
7953        6 points or so. I think that diffusion has a little more physical
7954        justification.
7955      - clean up ggl90_calc in the hope of reducing memory usage (this hope
7956        was in vain)
7957      - mask tke-variable in ggl90_init
7958    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
7959    o fix biharmonic diffusion on CS-grid.
7960    o more obcs stuff
7961      - added obcs_external_fields_load as an alternative to the EXF-pkg option
7962        for reading boundary values. This routine is called from
7963        obcs_prescribe_read
7964      - updated obcs_check
7965      - changed sponge layer relaxation parameter units for days to seconds
7966      - turned off sponge layer by default
7967      - changed argument list of OBCS_CALC to myTime+deltaTclock
7968      - fixed about 35 bugs in obcs_external_fields_load
7969    
7970    checkpoint55c_post (2004/09/23)
7971    o obcs stuff
7972      - new runtime flags useOBCSprescribe, useOBCSbalance
7973      - re-arranged obcs_calc
7974      - moved exf_getobcs to obcs_prescibe_read
7975        obcs_prescibe_read is called after ORLANSKI stuff
7976        and independent of it (executable can contain all).
7977      - updated obcs_check
7978      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
7979        These may be necessary only if tangential velocities are
7980        prescribed at OB, not sure, needs testing.
7981    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
7982      which simplifies the calls and passes the ifc check-bounds test
7983    
7984    checkpoint55b_post (2004/09/22)
7985    o add a 2D scalar, Z location, exchange_2 routine.
7986    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
7987      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
7988      affects advect_cs results (for the wrong reason): update output.txt
7989    o use a more standard discretization for biharmonic viscosity ;
7990     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
7991      affects results of dome set-up: update output.txt
7992    o fix gad_advection.F (CubedSphere part), back to version 1.23
7993    o fix bug in mom_vi_del2uv.F (CubedSphere part).
7994    
7995    checkpoint55a_post (2004/09/20)
7996    o merged code to
7997      * prescribe/read time-dependent open boundaries
7998        (works in conjunction with exf, cal)
7999      * sponge layer code for open boundaries
8000      * each boundary N/S/E/W now has its own CPP option
8001        (healthy for the adjoint)
8002    
8003    checkpoint55 (2004/09/17)
8004    o up-to-date adjoint of previous breaks
8005      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
8006      - global_ocean_ebm: adjoint still needs fix (TLM ok)
8007      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
8008      - carbon: * remove tr1-related adjoint verification
8009                * add ptracer as control variable
8010    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
8011      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
8012    
8013    checkpoint54f_post (2004/09/16)
8014    o in verification/carbin/ remove experiment related to
8015      ALLOW_PASSIVE_TRACER (array tr1 etc)
8016      code_ad/ input_ad/ results_ad
8017    
8018    o add two new packages
8019      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
8020        + subject to optimization (memory)
8021      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
8022        + subject to reordering (many GOTOs in the original code)
8023        + so far opps is called for every (i,j) point, and then operates in
8024          the vertical; one may want to reorder the scheme in order operate in
8025          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
8026          fields)
8027    o overhaul of IO so that we now have flags for MDSIO and/or MNC
8028      - all verification tests compile and run with linux_ia32_g77
8029      - defaults are compatible with current input files--nothing
8030        should change if you were not previously using MNC
8031      - MNC output has been added in numerous places (eg. timeave)
8032        but there are still a few writes not yet do-able with MNC
8033        (this is in progress)
8034      - flags now allow for either/or/both use of MDSIO and MNC and
8035        documentation will soon follow
8036      - numerous small formatting cleanups for ProTeX
8037    o add version info (via BUILD_INFO.h) to MNC and stdout
8038    
8039    checkpoint54e_post (2004/09/02)
8040    o add two new packages
8041      - pp81 (Packanowski and Philander, 1981), Richardson number and
8042        stratification dependent mixing
8043      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
8044      - these scheme operate in a similar manner as KPP (without ghat, of
8045        course), however there is only one diffusivity that is used for both
8046        temperature and salinity (and passive tracers)
8047    o add offline package
8048    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
8049      provided by Stephanie Dutkiewicz
8050    o genmake2: add ability to search for C compilers and cleanup test output
8051      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
8052    
8053    checkpoint54d_post (2004/07/27)
8054    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
8055    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
8056      leading to additional shift by 5 days each year of integration
8057       (i.e. leading to considerable offset over the years)
8058    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
8059    o start with no AB and no initial filtering (staggerTimeStep):
8060      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
8061    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
8062      (external loading & cpl import/export stay in forward_step.F)
8063    o update coupling interface to work with new staggerTimeStep
8064    o change MDSIO ptracers_pickup.
8065    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
8066    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
8067    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
8068    
8069    checkpoint54c_post (2004/07/18)
8070    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
8071      this affects (truncation error) output.txt of test-exp:
8072       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
8073    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
8074    o change Qnet to always be the net heat flux, (+upward).
8075      affects (truncation error) output of natl_box exp.: updated
8076    o define the max number of passive tracers in PTRACERS_SIZE.h
8077    o start to test mnc routinely in exp0
8078    o add sea-ice loading (sIceLoad) as a new forcing field.
8079    
8080    checkpoint54b_post (2004/07/08)
8081    o add testreport "-j JOBS" option for parallel builds (tested and pretty
8082       impressive on Altix and Opteron systems)
8083    o diagnostics can now write NetCDF files through the mnc package
8084    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
8085    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
8086    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
8087      affects (truncation error) output of lab_sea & natl_box exp.: updated
8088    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
8089    
8090    checkpoint54a_post (2004/07/06)
8091    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
8092    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
8093    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
8094    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
8095      + internal_wave (shift in writing cg2d_ini_res)
8096    checkpoint54a_pre (2004/07/05)
8097    
8098    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
8099      - modified verification/lab_sea and natl_box_adjoint accordingly
8100    
8101    checkpoint54 (2004/07/02)
8102    checkpoint53g_post (2004/07/02)
8103    o prepare splitting of thermodynamics: store convect.counter in common block
8104    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
8105      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
8106    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
8107    o new parameter "nShapS": allow to treat differently S from T (nShapT)
8108    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
8109    o restore adjointability
8110    
8111    checkpoint53f_post (2004/06/25)
8112    o modifications that affect AIM experiment results (update output.txt):
8113      - no advection of S at top interface Nr (pkg/generic_advdiff)
8114      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
8115    o AIM pkg:
8116      - include stability function into surf.Flux derivative relative to Tsurf
8117      - calculate clear-sky radiation & surface temp. change (for diagnostics)
8118    
8119    checkpoint53e_post
8120    o merged cylindrical coord configuration
8121    o added rotating_tank experiment
8122    checkpoint53e_pre
8123    
8124    checkpoint53d_post (2004/06/14)
8125    o faulks upgraded: re-generate output.txt that have changed:
8126       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
8127    o Added Bryan and Lewis, 1979, vertical diffusivity profile
8128    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
8129    o added Sadourny discretization of Coriolis
8130      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
8131      - re-enabled use of omega3 (useAbsVorticity)
8132    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
8133      vector-invariant equations
8134      - note: does *NOT* yet use same variable visc. for no-slip BC's.
8135    o recoded the lateral boundary conditions for non-hydrostatic w, this time
8136      hopefully without new bugs
8137      - still to do: biharmonic friction for non-hydrostatic w
8138    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
8139    o regenerated output for global_ocean_ebm (using -ieee)
8140    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
8141      of mom_common/
8142      - simple re-arrangement of instructions within computing loop
8143    checkpoint53d_pre (2004/05/21)
8144    
8145    checkpoint53c_post (2004/05/21)
8146    o new version of coupler for AIM+thSIce and Ocean models
8147     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
8148     - land: change Evaporation of snow
8149     - aim with thSIce: fix bug in snow-precip.
8150    o changes to calc_gw.F
8151     - bug fix for w^2 term near the bottom boundary
8152     - (hopefully) improve the lateral slip boundary condtions for use with
8153        partial/looped cells
8154      - because the bug fix changes two verification experiments anyway (exp5
8155        and plume on slope), change the lateral boundary condition from half slip
8156        to the value of no_slip_sides
8157    o ebm package wasnt quite up to the parallel task. Fixed that.
8158    o Adjoint of EBM package + verification
8159      * TLM OK
8160      * ADM not sufficient accuracy yet (needs further testing)
8161    
8162    checkpoint53b_post (2004/05/14)
8163    o Commiting new energy balance model to repository
8164      * package is pkg/ebm
8165      * verif. is verification/global_ocean_ebm
8166      * references are in ebm_driver.F
8167    C      * X. Wang, P. Stone and J. Marotzke, 1999:
8168    C        Global thermohaline circulation. Part I:
8169    C        Sensitivity to atmospheric moisture transport.
8170    C        J. Climate 12(1), 71-82
8171    C      * X. Wang, P. Stone and J. Marotzke, 1999:
8172    C        Global thermohaline circulation. Part II:
8173    C        Sensitivity with interactive transport.
8174    C        J. Climate 12(1), 83-91
8175    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
8176    C        Destabilization of the thermohaline circulation
8177    C        by atmospheric eddy transports.
8178    C        J. Climate 7(12), 1870-1882
8179    o Will need long integration testing.
8180    checkpoint53b_pre (2004/05/14)
8181    
8182    o created pkg/mom_common in preparation for variable viscosity code
8183    o renamed and split ini_mnc_io
8184    o pkg/land: only liquid water can diffuse or run-off
8185    o AIM using land: soil wetness availability account for snow
8186    o added printMapIncludesZeros to EEPARMS namelist
8187    
8188    checkpoint53a_post (2004/05/11)
8189    o restore TAMC compatiility for exf_constants.h
8190      (no usage of _d in .h)
8191    o Additional storing in KPP in an attempt to fix
8192      TAMC problem with adjoint of KPP code.
8193      (no success...)
8194      Identical code works fine with TAF.
8195    o Fixed verification/natl_box_adjoint experiments.
8196      Initial conditions for Experiments 4 and 5 are now
8197      set to "SEAICE_initialHEFF=0", which is more reasonable,
8198      and hence gives results closer to that of Experiment 2.
8199      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
8200    
8201    checkpoint53 (2004/05/06)
8202    o stable checkpoint with up to date adjoint
8203      TLM tests only run for 1st grdchk at the moment. Its unclear if
8204      this is a code problem or a problem with resetting code for g_
8205      variables that is being autogenerated wrong.
8206      Otherwise:
8207       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
8208       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
8209         are both still in chaos following their security messes.
8210    
8211    checkpoint52n_post (2004/05/06)
8212    o various build (mostly genmake2) changes including:
8213      - ability to build/run more easily within Cygwin and MacOS X
8214      - more complicated Makefiles with a stronger dependence on Gnu Make
8215    o pkg/seaice modifications
8216      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
8217        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
8218        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
8219      - changed proxy for geostrophic velocity and updated
8220        verification/lab_sea/results/* accordingly
8221      - removed ADI dynamic solver from pkg/seaice
8222      - replaced all occurrences of 1/CSTICE or 1/CSUICE
8223        they caused a segmentation fault under certain circumstances
8224      - removed unused field WATR
8225    o bug fix in exf-package:
8226      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
8227         now reflect that.
8228    o small fixes in the cal-package:
8229      - set reference date to first of January for the 'model'-calendar
8230      - failing of cal_CheckDate in cal_FullDate now actually results in a
8231        warning
8232    o small modifications in exf-package to increase flexibility:
8233      - change climtempfreeze from a constant to a runtime parameter that
8234        is specified in data.exf_clim (default = -1.9)
8235      - introduce runtime parameter windstressmax (default = 2.0) that is
8236        specified in data.exf
8237    o fix in pkg/thsice:
8238      - update Evap (Tsf changes) to be consistent with Latent heat flux
8239      - maintain snow precipitation unchanged (even if Tsf >=0).
8240     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
8241    
8242    checkpoint52m_post (2004/04/18)
8243    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
8244      this does not change any of the results, because myIter=0 in swfrac always
8245      lead to jwtype=2 (the default anyway), but the call makes little sense
8246      as a default
8247    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
8248  o re-work pkg/thsice interface with ocean & bulk_force pkg to allow  o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
8249    atmospheric model (AIM) to use it ; add a "slab ocean" component.    atmospheric model (AIM) to use it ; add a "slab ocean" component.
8250  o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)  o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
# Line 29  o test exp. advect_cs: use the standard Line 8271  o test exp. advect_cs: use the standard
8271  o Added functionality to grdchk:  o Added functionality to grdchk:
8272    pick global i,j,k position (or nearest wet) where to perform check.    pick global i,j,k position (or nearest wet) where to perform check.
8273    
8274  checkpoint52l_post  checkpoint52l_post (2004/03/11)
8275  o new land formulation:  o new land formulation:
8276    a) use ground enthalpy as prognostic variable to ensure exact    a) use ground enthalpy as prognostic variable to ensure exact
8277       energy conservation.       energy conservation.
# Line 40  o aim_v23 modification for new land mode Line 8282  o aim_v23 modification for new land mode
8282    a) Treat separately land / ocean / sea-ice surface fluxes    a) Treat separately land / ocean / sea-ice surface fluxes
8283       to allow implicit computation of land & sea-ice surface temp.       to allow implicit computation of land & sea-ice surface temp.
8284    b) add snow precipitation.    b) add snow precipitation.
8285  checkpoint52l_pre  checkpoint52l_pre (2004/03/11)
8286    
8287  o fix problem (when 1 tile is empty) in min/max monitor.  o fix problem (when 1 tile is empty) in min/max monitor.
8288  o fix bug in timeAve (u,vZetatave in common block)  o fix bug in timeAve (u,vZetatave in common block)
# Line 53  o fix ini_curvilinear_grid ; test CS exp Line 8295  o fix ini_curvilinear_grid ; test CS exp
8295  o aim.5l_cs: modify sea-ice fraction input file ; update output  o aim.5l_cs: modify sea-ice fraction input file ; update output
8296  o exf: Adding simple range check routine for exf fields after read  o exf: Adding simple range check routine for exf fields after read
8297    
8298  checkpoint52k_post  checkpoint52k_post (2004/02/23)
8299  o removed top-level directory "diags"  o removed top-level directory "diags"
8300    - we migrated these functions to pkg/timeave a long time ago    - we migrated these functions to pkg/timeave a long time ago
8301  o fixed bug introduced in pkg/monitor  o fixed bug introduced in pkg/monitor
# Line 66  o set all ...Freq to zero after cost_fin Line 8308  o set all ...Freq to zero after cost_fin
8308    taveFreq, dumpFreq, pChkptFreq    taveFreq, dumpFreq, pChkptFreq
8309  o MAIN and ECCO differentiability restored  o MAIN and ECCO differentiability restored
8310    
8311  checkpoint52j_post  checkpoint52j_post (2004/02/18)
8312  o fix nchklev in tamc.h for global_ocean...  o fix nchklev in tamc.h for global_ocean...
8313  o Bringing flow and store directives up-to-date  o Bringing flow and store directives up-to-date
8314  o Really weird thing!  o Really weird thing!
# Line 74  o Really weird thing! Line 8316  o Really weird thing!
8316    starttime, niter0, instead of mytime, myiter, screws up the adjoint:    starttime, niter0, instead of mytime, myiter, screws up the adjoint:
8317    TAF places a faulty re-call of initialise_varia    TAF places a faulty re-call of initialise_varia
8318    after cost_final call which should not be there!    after cost_final call which should not be there!
8319  checkpoint52j_pre  checkpoint52j_pre (2004/02/03)
8320    
8321  o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and  o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
8322    error messages    error messages
# Line 91  o merged mom_vi_calc_relvort3.F, mom_vi_ Line 8333  o merged mom_vi_calc_relvort3.F, mom_vi_
8333    mon_vort3.F to make exch2 friendly with >1 tile per cube face    mon_vort3.F to make exch2 friendly with >1 tile per cube face
8334  o limit timeave output for hi-res integrations  o limit timeave output for hi-res integrations
8335    
8336  checkpoint52i_post  checkpoint52i_post (2004/01/21)
8337  o removed CPP_EEOPTIONS.h from verification/*/code  o removed CPP_EEOPTIONS.h from verification/*/code
8338  o updated the tiling for global_ocean_pressure  o updated the tiling for global_ocean_pressure
8339  checkpoint52i_pre  checkpoint52i_pre (2004/01/20)
8340    
8341  o update aim.5l_LatLon using the standard aim_v23 pkg (instead of  o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
8342    the old pkg/aim).    the old pkg/aim).
8343    
8344  checkpoint52h_pre  checkpoint52h_pre (2004/01/20)
8345  o shortened offending lines in exch2_send_rx?.template  o shortened offending lines in exch2_send_rx?.template
8346  o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator  o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
8347  o genmake2: add build & execute test for NetCDF code  o genmake2: add build & execute test for NetCDF code
# Line 110  o added temporary hack for sea-ice dynam Line 8352  o added temporary hack for sea-ice dynam
8352    metric terms are ignored and it is assumed that    metric terms are ignored and it is assumed that
8353    there is no sea-ice on cube faces 1, 2, 4, and 5.    there is no sea-ice on cube faces 1, 2, 4, and 5.
8354    
8355  checkpoint52f_post  checkpoint52f_post (2004/01/09)
8356  o added exch2 cube routines to pkg/exch2  o added exch2 cube routines to pkg/exch2
8357  o modified hs94.cs-32x32x5 to use it  o modified hs94.cs-32x32x5 to use it
8358  o added new grid files to hs94.cs-32x32x5  o added new grid files to hs94.cs-32x32x5
8359  checkpoint52f_pre  checkpoint52f_pre (2004/01/07)
8360    
8361  checkpoint52e_post  checkpoint52e_post (2004/01/07)
8362  o first attempt to solve vertical advection (momemtum & T,S) Implicitly  o first attempt to solve vertical advection (momemtum & T,S) Implicitly
8363    for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)    for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
8364  o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)  o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
# Line 124  o step.1 : rewrite (as in MultiDimAdvec) Line 8366  o step.1 : rewrite (as in MultiDimAdvec)
8366  o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.  o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
8367  o update output (gad_calc_rhs.F changes affect truncation error) of exp:  o update output (gad_calc_rhs.F changes affect truncation error) of exp:
8368   front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box   front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
8369  checkpoint52e_pre  checkpoint52e_pre (2004/01/02)
8370    
8371  o fix bug in impldiff when Nr=1 or Nr=2.  o fix bug in impldiff when Nr=1 or Nr=2.
8372  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt  o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
# Line 135  o added exf_offset_atemp for Celsius to Line 8377  o added exf_offset_atemp for Celsius to
8377  o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024  o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
8378  o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations  o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
8379    
8380  checkpoint52d_post  checkpoint52d_post (2003/12/16)
8381  o re-tiled many expts to allow comparison in multi-processor mode  o re-tiled many expts to allow comparison in multi-processor mode
8382    - updated output accordingly    - updated output accordingly
8383    - changed hs94.128x64x5 to use intial T from file rather than use the    - changed hs94.128x64x5 to use intial T from file rather than use the
# Line 164  o check-in the first version of the coup Line 8406  o check-in the first version of the coup
8406  o new verification experiment, cpl_aim+ocn:  o new verification experiment, cpl_aim+ocn:
8407     coupled ocean - AIM atmosphere on cs32 grid.     coupled ocean - AIM atmosphere on cs32 grid.
8408    
8409  checkpoint52d_pre  checkpoint52d_pre (2003/12/06)
8410  o surface flux time-av diagnostic modified for NLFS & RealFreshWater  o surface flux time-av diagnostic modified for NLFS & RealFreshWater
8411  o add call to AIM pendant S/R in external_forcing & external_fields_load.F  o add call to AIM pendant S/R in external_forcing & external_fields_load.F
8412    
8413  checkpoint52c_post  checkpoint52c_post (2003/11/25)
8414  o Fixing OPTIONS files for use of exf:  o Fixing OPTIONS files for use of exf:
8415    - ALLOW_ECCO not needed    - ALLOW_ECCO not needed
8416    - ECCO_CPPOPTIONS.h should not be included from    - ECCO_CPPOPTIONS.h should not be included from
# Line 182  o Removed all CPP options for cal packag Line 8424  o Removed all CPP options for cal packag
8424  o modified STOREs in GAD_ADVECTION  o modified STOREs in GAD_ADVECTION
8425  o corrected key comp. for passkey  o corrected key comp. for passkey
8426    
8427  checkpoint52b_post  checkpoint52b_post (2003/11/23)
8428  o new version: "thsice" of thermodynamic sea-ice pkg:  o new version: "thsice" of thermodynamic sea-ice pkg:
8429   - only 1 call from "forward_step"; conserve energy, fresh-water & salt.   - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
8430   - modify fluxes but do not change theta directly;   - modify fluxes but do not change theta directly;
# Line 190  o new version: "thsice" of thermodynamic Line 8432  o new version: "thsice" of thermodynamic
8432   - add forcing fields + data files in global_ocean.cs32x15/inp_thsice   - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
8433     + output_thsice.txt to test thsice & bulk_force pkgs.     + output_thsice.txt to test thsice & bulk_force pkgs.
8434  o put back grid & coriolis monitor output.  o put back grid & coriolis monitor output.
8435  checkpoint52b_pre  checkpoint52b_pre (2003/11/23)
8436    
8437  o call "do_the_model_io" at the beginning (=> dump initial state)  o call "do_the_model_io" at the beginning (=> dump initial state)
8438  o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)  o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
# Line 200  o missing PTRACERS headers in some routi Line 8442  o missing PTRACERS headers in some routi
8442  o default tamc.h in pkg/autodiff supposed to crash  o default tamc.h in pkg/autodiff supposed to crash
8443    to ensure proper customization    to ensure proper customization
8444    
8445  checkpoint52a_post  checkpoint52a_post (2003/11/17)
8446  o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp  o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
8447    - moved surfaceTendencyTice from pkg/seaice to main code    - moved surfaceTendencyTice from pkg/seaice to main code
8448    - subroutine FREEZE_SURFACE now limits only surface temperature    - subroutine FREEZE_SURFACE now limits only surface temperature
# Line 215  o fix problem with ECCO-related divided Line 8457  o fix problem with ECCO-related divided
8457    snapshot file was missing some ad-variables,    snapshot file was missing some ad-variables,
8458    but no warning issued by TAF    but no warning issued by TAF
8459    
8460  checkpoint52a_pre  checkpoint52a_pre (2003/11/12)
8461  o some bug fixes for #undef REAL4_IS_SLOW  o some bug fixes for #undef REAL4_IS_SLOW
8462    
8463  checkpoint52 = ecco_c52_e35  checkpoint52 = ecco_c52_e35
8464  o after testing adjoints of checkpoint51u_post  o after testing adjoints of checkpoint51u_post
8465    
8466  checkpoint51u_post  checkpoint51u_post (2003/11/06)
8467  o this is the post-merge tag of the ecco-branch  o this is the post-merge tag of the ecco-branch
8468    (needs another clean checkout and re-testing)    (needs another clean checkout and re-testing)
8469  o various natl_box_adjoint configs and results  o various natl_box_adjoint configs and results
# Line 236  o top level routines the_main_loop, forw Line 8478  o top level routines the_main_loop, forw
8478    (new namelist ecco_cost_nml)    (new namelist ecco_cost_nml)
8479  o in ctrl/ cleaned some cross-dependencies and updated CPP options  o in ctrl/ cleaned some cross-dependencies and updated CPP options
8480    
8481  checkpoint51t_post  checkpoint51t_post (2003/11/04)
8482  o this is the pre-merge tag of the ecco-branch  o this is the pre-merge tag of the ecco-branch
8483    
8484  checkpoint51s_post  checkpoint51s_post (2003/11/04)
8485  o cleanup: removed various obsolete #define-s  o cleanup: removed various obsolete #define-s
8486  o pkg/grdchk  o pkg/grdchk
8487    - renamed 'ph-grd 3' to 'grad-res'    - renamed 'ph-grd 3' to 'grad-res'
# Line 248  o pkg/grdchk Line 8490  o pkg/grdchk
8490    - additional high-precision output for testreport    - additional high-precision output for testreport
8491      (grep for 'precision_grdchk_result')      (grep for 'precision_grdchk_result')
8492    
8493  checkpoint51r_post  checkpoint51r_post (2003/11/03)
8494  o cleaned up or removed CPP_OPTIONS.h files  o cleaned up or removed CPP_OPTIONS.h files
8495  o updated results for some of the tests to reflect the new  o updated results for some of the tests to reflect the new
8496    optfiles (-ieee: -O0 instead of -O3)    optfiles (-ieee: -O0 instead of -O3)
8497    
8498  checkpoint51q_post  checkpoint51q_post (2003/10/30)
8499  o cd_code:  o cd_code:
8500    - moved cd_scheme.F -> cd_code_scheme.F    - moved cd_scheme.F -> cd_code_scheme.F
8501    - separate read_checkpoint from cd_code_ini_vars.F    - separate read_checkpoint from cd_code_ini_vars.F
# Line 269  o ctrl package totally restructured Line 8511  o ctrl package totally restructured
8511    - confined inclusion of AD_CONFIG.h to where necessary.    - confined inclusion of AD_CONFIG.h to where necessary.
8512  o genmake2: changed AD dependencies from SRCFILES to AD_FILES  o genmake2: changed AD dependencies from SRCFILES to AD_FILES
8513    
8514  checkpoint51p_post  checkpoint51p_post (2003/10/30)
8515  o create initial cd_code package  o create initial cd_code package
8516    - WARNING: the initialization of fields within packages    - WARNING: the initialization of fields within packages
8517      is broken because INI_FIELDS (where READ_CHECKPOINT is      is broken because INI_FIELDS (where READ_CHECKPOINT is
# Line 284  o create initial cd_code package Line 8526  o create initial cd_code package
8526  o cleanup verification/*/code/GMREDI_OPTIONS.h  o cleanup verification/*/code/GMREDI_OPTIONS.h
8527  o cleanup testreport  o cleanup testreport
8528    
8529  checkpoint51o_post  checkpoint51o_post (2003/10/27)
8530  o bringing AD-related verif's up to date with genmake2  o bringing AD-related verif's up to date with genmake2
8531    - carbon/    - carbon/
8532    - global_ocean.90x40x15/    - global_ocean.90x40x15/
# Line 305  o Correcting initialisations for fVerU, Line 8547  o Correcting initialisations for fVerU,
8547  o helping TAF to recognize dependency on kUp for  o helping TAF to recognize dependency on kUp for
8548    fVerU, fVerV    fVerU, fVerV
8549  o Replacing delZ by delR in pkg/ctrl/  o Replacing delZ by delR in pkg/ctrl/
8550  checkpoint51o_pre  checkpoint51o_pre (2003/10/24)
8551    
8552  o undid all of cp51 pending some cleanups and discussion  o undid all of cp51 pending some cleanups and discussion
8553  o added the [#include "AD_CONFIG.h"] statement to all files that need  o added the [#include "AD_CONFIG.h"] statement to all files that need
# Line 313  o added the [#include "AD_CONFIG.h"] sta Line 8555  o added the [#include "AD_CONFIG.h"] sta
8555   o re-worked the build logic in genmake2 to support AD_CONFIG.h   o re-worked the build logic in genmake2 to support AD_CONFIG.h
8556   o removed tools/genmake since it no longer works   o removed tools/genmake since it no longer works
8557    
8558  checkpoint51n_post  checkpoint51n_post (2003/10/23)
8559  o modifications to make FREEZE flux visible to pkg/kpp  o modifications to make FREEZE flux visible to pkg/kpp
8560    - moved surfaceTendencyTice from pkg/seaice to main code    - moved surfaceTendencyTice from pkg/seaice to main code
8561    - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP    - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
# Line 322  o modifications to make FREEZE flux visi Line 8564  o modifications to make FREEZE flux visi
8564       global_ocean.cs32x15, and global_with_exf)       global_ocean.cs32x15, and global_with_exf)
8565  o added surface flux output variables to TIMEAVE_STATVARS  o added surface flux output variables to TIMEAVE_STATVARS
8566    
8567  checkpoint51n_pre  checkpoint51n_pre (2003/10/23)
8568  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
8569  o added [#include "AD_CONFIG.h"] to all files that use the following  o added [#include "AD_CONFIG.h"] to all files that use the following
8570    defines:    defines:
# Line 330  o added [#include "AD_CONFIG.h"] to all Line 8572  o added [#include "AD_CONFIG.h"] to all
8572    - ALLOW_TANGENTLINEAR_RUN    - ALLOW_TANGENTLINEAR_RUN
8573    - ALLOW_ECCO_OPTIMIZATION    - ALLOW_ECCO_OPTIMIZATION
8574    
8575  checkpoint51m_post  checkpoint51m_post (2003/10/21)
8576  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
8577    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
8578    - various cleanups related to package handling    - various cleanups related to package handling
8579    - these changes should have no impact on the forward model    - these changes should have no impact on the forward model
8580    
8581  checkpoint51l_post  checkpoint51l_post (2003/10/20)
8582  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
8583   - faster algorithm for cal_addtime.F   - faster algorithm for cal_addtime.F
8584   - higher precision arithmetic, where needed   - higher precision arithmetic, where needed
8585   - pkg/exf *startdate variables changed from calendar date to   - pkg/exf *startdate variables changed from calendar date to
8586     model integration time     model integration time
8587    
8588  checkpoint51l_pre  checkpoint51l_pre (2003/10/17)
8589  o add salt flux to forcing fields (used when salty sea-ice forms or melts)  o add salt flux to forcing fields (used when salty sea-ice forms or melts)
8590  o enable to apply restoring on S & T only in a latitude band.  o enable to apply restoring on S & T only in a latitude band.
8591  o update output (external_forcing_surf modif. change truncation errors)  o update output (external_forcing_surf modif. change truncation errors)
8592     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
8593    
8594  checkpoint51k_post  checkpoint51k_post (2003/10/16)
8595  o change default to: useNHMTerms=.FALSE.  o change default to: useNHMTerms=.FALSE.
8596   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
8597     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
# Line 363  o added an include barrier to the defaul Line 8605  o added an include barrier to the defaul
8605    removed the #include "PACKAGES_CONFIG.h" from it    removed the #include "PACKAGES_CONFIG.h" from it
8606  o fix a bug in mom_fluxform (from chk51j_post)  o fix a bug in mom_fluxform (from chk51j_post)
8607    
8608  checkpoint51j_post  checkpoint51j_post (2003/10/10)
8609  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
8610  o adjusted some flow directives (dynamics, thermodynamics)  o adjusted some flow directives (dynamics, thermodynamics)
8611  o added cubed-sphere case to test cost function  o added cubed-sphere case to test cost function
# Line 377  o Moving pkg-specific flow directives to Line 8619  o Moving pkg-specific flow directives to
8619         - pkg_ad_diff.list         - pkg_ad_diff.list
8620         - pkg_ad_check_lev?_dir.h         - pkg_ad_check_lev?_dir.h
8621    
8622  checkpoint51i_post  checkpoint51i_post (2003/10/09)
8623  o merge of the branch-genmake2  o merge of the branch-genmake2
8624    - knowingly breaks the older genmake    - knowingly breaks the older genmake
8625    - automatic generation of all ALLOW_${PKG_NAME} defines    - automatic generation of all ALLOW_${PKG_NAME} defines
8626    - new testreport supersedes older testscript    - new testreport supersedes older testscript
8627  o large number of package inclusion and header cleanups  o large number of package inclusion and header cleanups
8628  checkpoint51i_pre  checkpoint51i_pre (2003/10/08)
8629    
8630  o new output for adjoin of global ocean vector invariant  o new output for adjoin of global ocean vector invariant
8631  o fix for checkpoint of thermodynamic seaice and bulk_force  o fix for checkpoint of thermodynamic seaice and bulk_force
# Line 395  o modify gchem pkg to be more versatile Line 8637  o modify gchem pkg to be more versatile
8637  o modifications to clean up dic pkg  o modifications to clean up dic pkg
8638  o add pkg/cfc  o add pkg/cfc
8639    
8640  checkpoint51g_post  checkpoint51g_post (2003/10/02)
8641  o provide links for ARPACK and ADM*TLM  o provide links for ARPACK and ADM*TLM
8642  o start removing verification/vero/  o start removing verification/vero/
8643  o update AD-related stuff  o update AD-related stuff
# Line 403  o update AD-related stuff Line 8645  o update AD-related stuff
8645  o adding to verification/global_ocean.90x40x15/ adjoint of  o adding to verification/global_ocean.90x40x15/ adjoint of
8646    vector invariant setup    vector invariant setup
8647    
8648  checkpoint51f_post  checkpoint51f_post (2003/10/02)
8649  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
8650  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
8651    of tracer Green's fucntions for ocean inversion project.    of tracer Green's fucntions for ocean inversion project.
8652    
8653  checkpoint51f_pre  checkpoint51f_pre (2003/08/07)
8654  o Added on-the-fly spatial interpolation capability  o Added on-the-fly spatial interpolation capability
8655      "USE_EXF_INTERPOLATION" to pkg/exf.      "USE_EXF_INTERPOLATION" to pkg/exf.
8656    - This is a temporary Cartesian-grid hack until    - This is a temporary Cartesian-grid hack until
# Line 420  o Bug fix to pkg/ptracers, pkg/generic_a Line 8662  o Bug fix to pkg/ptracers, pkg/generic_a
8662      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
8663      non-local transport term.      non-local transport term.
8664    
8665  checkpoint51e_post  checkpoint51e_post (2003/08/03)
8666  o pkg/mom_vecinv:  o pkg/mom_vecinv:
8667    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
8668    - add time-ave diagnostic of vorticity advection.    - add time-ave diagnostic of vorticity advection.
# Line 430  o atmospheric geopotential: - include wa Line 8672  o atmospheric geopotential: - include wa
8672  o land pkg: read initial state from files.  o land pkg: read initial state from files.
8673  o AIM : add stratospheric drag in the upper level  o AIM : add stratospheric drag in the upper level
8674    
8675  checkpoint51d_post  checkpoint51d_post (2003/07/18)
8676  o change function ILNBLNK (=> last non-blank char.) to return zero  o change function ILNBLNK (=> last non-blank char.) to return zero
8677    (instead of the string length) when the string. char is empty    (instead of the string length) when the string. char is empty
8678  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
# Line 443  o Use cluster local disks for purely loc Line 8685  o Use cluster local disks for purely loc
8685    - new active_file_loc... and mdsio_..._loc routines    - new active_file_loc... and mdsio_..._loc routines
8686    - affected packages: autodiff, ctrl, grdchk, mdsio    - affected packages: autodiff, ctrl, grdchk, mdsio
8687    
8688  checkpoint51c_post  checkpoint51c_post (2003/07/08)
8689  o introducing integer flag debugLevel  o introducing integer flag debugLevel
8690    - debLevZero: suppress all output    - debLevZero: suppress all output
8691    - debLevA: standard    - debLevA: standard
# Line 466  o added verification for adjoint with pt Line 8708  o added verification for adjoint with pt
8708    - checked tapelev/comlev recomputations: OK    - checked tapelev/comlev recomputations: OK
8709  <<<checkpoint51b_pre  <<<checkpoint51b_pre
8710    
8711  checkpoint51a_post  checkpoint51a_post (2003/06/25)
8712  o added code for biogeochemistry package  o added code for biogeochemistry package
8713    - new pkgs: dic, gchem    - new pkgs: dic, gchem
8714    - new subroutine in ptracers    - new subroutine in ptracers
8715  o modify code for biogeo packages  o modify code for biogeo packages
8716    - in model/src and pkg/ptracers    - in model/src and pkg/ptracers
8717    
8718  checkpoint51  checkpoint51 (2003/06/24)
8719  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
8720    - autodiff, ctrl, exf, grdchk, seaice    - autodiff, ctrl, exf, grdchk, seaice
8721    kept separate packages    kept separate packages
# Line 481  o merged improved packages from ecco-bra Line 8723  o merged improved packages from ecco-bra
8723  o updating verification/internal_wave, verification/lab_sea  o updating verification/internal_wave, verification/lab_sea
8724    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
8725    
8726  checkpoint50i_post  checkpoint50i_post (2003/06/23)
8727  o Preparing next differentiable checkpoint and sync  o Preparing next differentiable checkpoint and sync
8728    of MAIN vs. ecco-branch    of MAIN vs. ecco-branch
8729    - 1st step: this one is differentiable    - 1st step: this one is differentiable
8730    - 2nd step: next(! not this) checkpoint will have updated packages    - 2nd step: next(! not this) checkpoint will have updated packages
8731                from ecco-branch)                from ecco-branch)
8732    
8733  checkpoint50h_post  checkpoint50h_post (2003/06/20)
8734  o new package "land": provide surface BC for AIM.  o new package "land": provide surface BC for AIM.
8735  o pkg/ptracers: apply exchange to all tracers after reading a pickup.  o pkg/ptracers: apply exchange to all tracers after reading a pickup.
8736  o AIM: use true log-P extrapolation for near surface temp (= as in  o AIM: use true log-P extrapolation for near surface temp (= as in
# Line 497  o New variable in PARM03 for more flexib Line 8739  o New variable in PARM03 for more flexib
8739  o somewhat cleaned package initialisation sequence for  o somewhat cleaned package initialisation sequence for
8740    ctrl/ cost/ ecco/ in packages_... routines    ctrl/ cost/ ecco/ in packages_... routines
8741    
8742  checkpoint50g_post  checkpoint50g_post (2003/05/23)
8743  o merged with release1_p17 (pkg/seaice and verification/lab_sea)  o merged with release1_p17 (pkg/seaice and verification/lab_sea)
8744    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
8745    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
8746      made the default because of faster convergence than ADI      made the default because of faster convergence than ADI
8747    
8748  checkpoint50f_post  checkpoint50f_post (2003/05/23)
8749  o exf totally restructured  o exf totally restructured
8750    - replaced all exf_set_ routines by one generic exf_set_gen.F    - replaced all exf_set_ routines by one generic exf_set_gen.F
8751      and made sure it's still differentiable      and made sure it's still differentiable
# Line 511  o exf totally restructured Line 8753  o exf totally restructured
8753    - exf_inscal_/exf_outscal_ suffixes consistent with field names    - exf_inscal_/exf_outscal_ suffixes consistent with field names
8754    - updated adjoint/makefile and relevant verif. accordingly    - updated adjoint/makefile and relevant verif. accordingly
8755    
8756  checkpoint50f_pre  checkpoint50f_pre (2003/05/23)
8757   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
8758        + change Evap over land. (update aim.5l_cs output)        + change Evap over land. (update aim.5l_cs output)
8759   o added missing .cvsignores and made uniform across expts   o added missing .cvsignores and made uniform across expts
# Line 521  checkpoint50f_pre Line 8763  checkpoint50f_pre
8763   o new fn in pkg/monitor to stop model if solution grows too big   o new fn in pkg/monitor to stop model if solution grows too big
8764   o removed lots of single quotes from comments   o removed lots of single quotes from comments
8765    
8766  checkpoint50e_post  checkpoint50e_post (2003/05/14)
8767  o make KPP work with PTRACERS  o make KPP work with PTRACERS
8768   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
8769     nearly a copy of kpp_transport_s     nearly a copy of kpp_transport_s
8770   - there is no analogue to SurfaceTendencyS, so I have to use   - there is no analogue to SurfaceTendencyS, so I have to use
8771     gPtr(of the surface layer) instead     gPtr(of the surface layer) instead
8772  o add a new platform SunFire+mpi (SunFire 15000) to genmake  o add a new platform SunFire+mpi (SunFire 15000) to genmake
8773  checkpoint50e_pre  checkpoint50e_pre (2003/05/13)
8774    
8775  checkpoint50d_post  checkpoint50d_post (2003/05/13)
8776  o change kpp output from multiple-record state files to single-record state  o change kpp output from multiple-record state files to single-record state
8777    files analogous to write_state.F    files analogous to write_state.F
8778  o reduce the output frequency of cg3d-related stuff to the monitor frequency,  o reduce the output frequency of cg3d-related stuff to the monitor frequency,
8779    analogous to the cg2d-related output.    analogous to the cg2d-related output.
8780  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
8781    so that writing to internal file fn (with length 512) fails.    so that writing to internal file fn (with length 512) fails.
8782  checkpoint50d_pre  checkpoint50d_pre (2003/05/12)
8783    
8784  checkpoint50c_post  checkpoint50c_post (2003/05/12)
8785  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
8786  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
8787  o add time-average diagnostic of U*V and vertical diffusive flux for theta.  o add time-average diagnostic of U*V and vertical diffusive flux for theta.
8788  o bug fixed in convective adjustment diagnostic (multi-tile set-up).  o bug fixed in convective adjustment diagnostic (multi-tile set-up).
8789  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
8790    
8791  checkpoint50c_pre  checkpoint50c_pre (2003/04/30)
8792  Merging from release1_p13:  Merging from release1_p13:
8793  o bug fix for pkg/seaice dynamic solver  o bug fix for pkg/seaice dynamic solver
8794  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
8795    
8796  checkpoint50b_post  checkpoint50b_post (2003/04/17)
8797  o store u*,v* in gU,V instead of in guNm1,gvNm1  o store u*,v* in gU,V instead of in guNm1,gvNm1
8798  o in order to put the momForcing out of the Adams-Bashforth:  o in order to put the momForcing out of the Adams-Bashforth:
8799    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
# Line 560  o new flag "useCDscheme" (default=F); re Line 8802  o new flag "useCDscheme" (default=F); re
8802  o re-generate output for highly sensitive test-exp:  o re-generate output for highly sensitive test-exp:
8803     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
8804    
8805  checkpoint50b_pre  checkpoint50b_pre (2003/04/17)
8806  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
8807  o corrected CPP option mismatch in exf_Bulk... functions for case  o corrected CPP option mismatch in exf_Bulk... functions for case
8808    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
8809    
8810  checkpoint50a_post  checkpoint50a_post (2003/03/21)
8811  o Bug fix for merging between c50 and KPP.  o Bug fix for merging between c50 and KPP.
8812    ikey was passed from thermodynamics to kpp_calc via    ikey was passed from thermodynamics to kpp_calc via
8813    common block rather than being recomputed in kpp_calc,    common block rather than being recomputed in kpp_calc,
8814    in contradiction with new key itdkey.    in contradiction with new key itdkey.
8815    New key ikppkey created, and tamc.h headers updated.    New key ikppkey created, and tamc.h headers updated.
8816    
8817  checkpoint50  checkpoint50 (2003/03/08)
8818  - 2nd step of merge with ecco-branch:  - 2nd step of merge with ecco-branch:
8819    merge changes in ecco-branch back into main trunk    merge changes in ecco-branch back into main trunk
8820  - bug fix in find_alpha  - bug fix in find_alpha
# Line 580  checkpoint50 Line 8822  checkpoint50
8822  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
8823  - merged some sliced AD support routines  - merged some sliced AD support routines
8824    
8825  checkpoint49  checkpoint49 (2003/03/06)
8826  merged from ecco-branch:  merged from ecco-branch:
8827  o exf:  o exf:
8828    - Enable initialisation of forcing fields to constant    - Enable initialisation of forcing fields to constant
# Line 618  o DIVA: Line 8860  o DIVA:
8860    (see MITgcm manual).    (see MITgcm manual).
8861  o cal: synchronized between MAIN and ecco-branch  o cal: synchronized between MAIN and ecco-branch
8862    
8863  checkpoint48i_post  checkpoint48i_post (2003/03/05)
8864  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
8865    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
8866    pressure by totPhiHyd).    pressure by totPhiHyd).
# Line 636  o Modif. for DIVA: Line 8878  o Modif. for DIVA:
8878    tbar, sbar, psbar, which should not be reinitialised;    tbar, sbar, psbar, which should not be reinitialised;
8879    only relevant for ecco-branch)    only relevant for ecco-branch)
8880    
8881  checkpoint48h_post  checkpoint48h_post (2003/02/28)
8882  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
8883  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
8884  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
8885  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
8886    
8887  checkpoint48g_post  checkpoint48g_post (2003/02/18)
8888  --- EOS:  --- EOS:
8889  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
8890    store total Potential in totPhyHyd for diagnostics & EOS.    store total Potential in totPhyHyd for diagnostics & EOS.
# Line 656  o accurate phiHyd when using interface-W Line 8898  o accurate phiHyd when using interface-W
8898   ( changes results of ideal_2D_oce )   ( changes results of ideal_2D_oce )
8899  o includes r* 2nd term in potential gradient.  o includes r* 2nd term in potential gradient.
8900    
8901  checkpoint48f_post  checkpoint48f_post (2003/02/18)
8902  Merging from release1_p12:  Merging from release1_p12:
8903  o Modifications for using pkg/exf with pkg/seaice  o Modifications for using pkg/exf with pkg/seaice
8904    - improved description of the various forcing configurations    - improved description of the various forcing configurations
# Line 684  o pkg/seaice: Line 8926  o pkg/seaice:
8926    - adjoint-friendly modifications    - adjoint-friendly modifications
8927    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
8928    
8929  checkpoint48e_post  checkpoint48e_post (2003/02/12)
8930  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
8931  o dynamics: change definition of computational domain & adapt mom_fluxform  o dynamics: change definition of computational domain & adapt mom_fluxform
8932    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
# Line 695  o following exp works with Olx=Oly=2 (an Line 8937  o following exp works with Olx=Oly=2 (an
8937      inverted_barometer solid-body.cs-32x32x1      inverted_barometer solid-body.cs-32x32x1
8938    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
8939    
8940  checkpoint48d_post  checkpoint48d_post (2003/02/09)
8941  o in preparation for r*:  o in preparation for r*:
8942   a) use pre-computed gradient of hydrostatic potential:   a) use pre-computed gradient of hydrostatic potential:
8943      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
# Line 703  o in preparation for r*: Line 8945  o in preparation for r*:
8945      => affects results of glob_oce_pressure (different truncation error)        => affects results of glob_oce_pressure (different truncation error)  
8946    update output.txt of ideal_2D_oce & global_ocean_pressure    update output.txt of ideal_2D_oce & global_ocean_pressure
8947    
8948  checkpoint48d_pre  checkpoint48d_pre (2003/02/08)
8949  o in preparation for r*:  o in preparation for r*:
8950    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
8951    pass the 2 comp. of the grad. as arguments to momentum S/R.    pass the 2 comp. of the grad. as arguments to momentum S/R.
8952    but for the moment, only used if it does not change the results.    but for the moment, only used if it does not change the results.
8953  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
8954    
8955  checkpoint48c_post  checkpoint48c_post (2003/02/06)
8956  Modifications in treatment of initial flux forcing controls  Modifications in treatment of initial flux forcing controls
8957  to avoid extra storing of flux fields.  to avoid extra storing of flux fields.
8958    
8959  checkpoint48c_pre  checkpoint48c_pre (2003/01/21)
8960  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
8961  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
8962    
8963  checkpoint48b_post  checkpoint48b_post (2003/01/27)
8964  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
8965   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)
8966  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
8967    (for U & V) that are used for vertical advection of momentum.    (for U & V) that are used for vertical advection of momentum.
8968    
8969  checkpoint48a_post  checkpoint48a_post (2003/01/24)
8970  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
8971     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.
8972    Update output of: exp4, exp5, front_relax, global_ocean_pressure,    Update output of: exp4, exp5, front_relax, global_ocean_pressure,
8973                      lab_sea, natl_box & plume_on_slope                      lab_sea, natl_box & plume_on_slope
8974    
8975  checkpoint48  checkpoint48 (2003/01/23)
8976  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
8977    
8978  checkpoint47j_post  checkpoint47j_post (2003/01/21)
8979  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
8980  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping
8981  o added exch in ctrl_map_...  o added exch in ctrl_map_...
# Line 752  o Yet more changes in gmredi: Line 8994  o Yet more changes in gmredi:
8994      re-activated full calculation of taperfct for case 'ac02'      re-activated full calculation of taperfct for case 'ac02'
8995  o updating verification/ adjoints of carbon, global_ocean.90x40x15  o updating verification/ adjoints of carbon, global_ocean.90x40x15
8996    
8997  checkpoint47i_post  checkpoint47i_post (2003/01/13)
8998  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
8999  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
9000    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
# Line 768  o case GM_BOLUS_ADVEC should be cleaned Line 9010  o case GM_BOLUS_ADVEC should be cleaned
9010    S/R gmredi_slope_psi should be cleaned    S/R gmredi_slope_psi should be cleaned
9011  o verification/carbon now has exactConserv=.TRUE.  o verification/carbon now has exactConserv=.TRUE.
9012    
9013  checkpoint47g_post  checkpoint47g_post (2003/01/10)
9014  o time-average AIM output: becomes independent from statvars time-average  o time-average AIM output: becomes independent from statvars time-average
9015    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
9016  o After TAF bug fix:  o After TAF bug fix:
# Line 794  Gradient checks OK for Line 9036  Gradient checks OK for
9036  in conjunction with data.gmredi parameters to be checked in  in conjunction with data.gmredi parameters to be checked in
9037  in a few minutes under verification/carbon/code/  in a few minutes under verification/carbon/code/
9038    
9039  checkpoint47f_post  checkpoint47f_post (2002/12/28)
9040  Merging from release1_p10:  Merging from release1_p10:
9041  o modifications for using pkg/exf with pkg/seaice  o modifications for using pkg/exf with pkg/seaice
9042    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
# Line 806  o modifications for using pkg/exf with p Line 9048  o modifications for using pkg/exf with p
9048    - verification/lab_sea default experiment now uses    - verification/lab_sea default experiment now uses
9049      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
9050    
9051  checkpoint47e_post  checkpoint47e_post (2002/12/27)
9052  o created a tag prior to creating a branch  o created a tag prior to creating a branch
9053    
9054  checkpoint47d_post  checkpoint47d_post (2002/12/16)
9055  o fixed bug in the oceanic pressure coordinates code: vertical viscosity  o fixed bug in the oceanic pressure coordinates code: vertical viscosity
9056    at the bottom boundary had an erroneous half slip boundary condition    at the bottom boundary had an erroneous half slip boundary condition
9057  o added bottom drag and no slip boundary condition capabilities to  o added bottom drag and no slip boundary condition capabilities to
9058    oceanic pressure coordinates code    oceanic pressure coordinates code
9059  o added new verification experiment global_ocean_pressure, this experiment is  o added new verification experiment global_ocean_pressure, this experiment is
9060    also described in the tutorial section of the manual    also described in the tutorial section of the manual
9061  checkpoint47d_pre  checkpoint47d_pre (2002/12/16)
9062    
9063  checkpoint47c_post  checkpoint47c_post (2002/12/16)
9064  o Added a verification experiment for a global cubed-sphere ocean run  o Added a verification experiment for a global cubed-sphere ocean run
9065    -  verification/global_ocean.cubed32x32x30    -  verification/global_ocean.cubed32x32x30
9066    -  uses pkg/therm_seaice and pkg/bulk_forcing    -  uses pkg/therm_seaice and pkg/bulk_forcing
# Line 830  o OCEANICP & realFreshWater: include P-E Line 9072  o OCEANICP & realFreshWater: include P-E
9072    NOTES: requires option NONLIN_FRSURF to be "#define".    NOTES: requires option NONLIN_FRSURF to be "#define".
9073  o update advect_xz/results/output.txt (left from checkpoint44g_post)  o update advect_xz/results/output.txt (left from checkpoint44g_post)
9074    
9075  checkpoint47b_post  checkpoint47b_post (2002/12/05)
9076  Merging from release1_p9:  Merging from release1_p9:
9077  o pkg/seaice  o pkg/seaice
9078    - removed GOTO's and added taf directives    - removed GOTO's and added taf directives
# Line 847  o verification/lab_sea Line 9089  o verification/lab_sea
9089    - added missing matlab routines    - added missing matlab routines
9090    - added test of thermodynamics parallelization    - added test of thermodynamics parallelization
9091    
9092  checkpoint47a_post  checkpoint47a_post (2002/11/23)
9093  o new pkg: aim_v23  o new pkg: aim_v23
9094   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
9095     for now, keep the same surface forcing as before.     for now, keep the same surface forcing as before.
# Line 864  o bulk_force and therm_seaice Line 9106  o bulk_force and therm_seaice
9106  - Two ifdef statements for compile time,  - Two ifdef statements for compile time,
9107     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
9108    
9109  checkpoint47  checkpoint47 (2002/11/15)
9110  differentiable version of checkpoint46n_post  differentiable version of checkpoint46n_post
9111  o bug fix in quasihydrostaticterms  o bug fix in quasihydrostaticterms
9112  o * "clean" adjoint code (in terms of extensive recomputations)  o * "clean" adjoint code (in terms of extensive recomputations)
# Line 893  o Updated verification/carbon/ Line 9135  o Updated verification/carbon/
9135    - #define GM_VISBECK_VARIABLE_K    - #define GM_VISBECK_VARIABLE_K
9136    - GM_taper_scheme    = 'ldd97'        - GM_taper_scheme    = 'ldd97'    
9137    
9138  checkpoint46n_post  checkpoint46n_post (2002/11/12)
9139  Merging from release1_p8:  Merging from release1_p8:
9140  o verification/natl_box:  o verification/natl_box:
9141    updating new external_fields_load routine    updating new external_fields_load routine
# Line 947  o Adding new verification experiment glo Line 9189  o Adding new verification experiment glo
9189    the exf (and cal) package instead of the    the exf (and cal) package instead of the
9190    external_fields_load routine (cf README file).    external_fields_load routine (cf README file).
9191    
9192  checkpoint46m_post  checkpoint46m_post (2002/11/07)
9193  o modified testscript to return -- when there are no lines of "%MON" output  o modified testscript to return -- when there are no lines of "%MON" output
9194  o added new flag "quasiHydrostatic" for QH mode  o added new flag "quasiHydrostatic" for QH mode
9195    and new routine quasihydrostaticterms()    and new routine quasihydrostaticterms()
# Line 960  o introduced flag for controllin non-hyd Line 9202  o introduced flag for controllin non-hyd
9202  o removed gravitySign from PARM04  o removed gravitySign from PARM04
9203  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
9204    
9205  checkpoint46l_post  checkpoint46l_post (2002/11/01)
9206  o made convective adjustment work with pressure coordinates:  o made convective adjustment work with pressure coordinates:
9207   - changed the direction of k-loop in convective_adjustment.F for the   - changed the direction of k-loop in convective_adjustment.F for the
9208     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
# Line 973  o made convective adjustment work with p Line 9215  o made convective adjustment work with p
9215     at the beginning of find_rho, find_alpha, and find_beta, does a     at the beginning of find_rho, find_alpha, and find_beta, does a
9216     check of the entire slice, if CPP-option     check of the entire slice, if CPP-option
9217     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
9218  checkpoint46l_pre  checkpoint46l_pre (2002/10/23)
9219    
9220  checkpoint46k_post  checkpoint46k_post (2002/10/23)
9221  o fixed the verification/global_ocean.90x40x15 experiment:  o fixed the verification/global_ocean.90x40x15 experiment:
9222   - new bathymetry (the world according to A., JMC, and M.)   - new bathymetry (the world according to A., JMC, and M.)
9223   - new initial fields and forcing fields (*.bin files)   - new initial fields and forcing fields (*.bin files)
# Line 989  o S/R aim_initialise.F replace S/R aim_i Line 9231  o S/R aim_initialise.F replace S/R aim_i
9231   - read AIM physics parameters from a file (data.aimphys)   - read AIM physics parameters from a file (data.aimphys)
9232   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
9233    
9234  checkpoint46j_post  checkpoint46j_post (2002/10/07)
9235  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
9236  o move wVel computation at the end of the time step, in S/R integr_continuity  o move wVel computation at the end of the time step, in S/R integr_continuity
9237  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
9238  o update timeave pkg for wVel diagnostic.  o update timeave pkg for wVel diagnostic.
9239  checkpoint46j_pre  checkpoint46j_pre (2002/09/27)
9240    
9241  checkpoint46i_post  checkpoint46i_post (2002/09/25)
9242  o Clean up AIM package (and keep the results unchanged):  o Clean up AIM package (and keep the results unchanged):
9243    include CPP_OPTION and use IMPLICT NONE in all routines ;    include CPP_OPTION and use IMPLICT NONE in all routines ;
9244    declare all the variables _RL ; use _d 0 for all numerical constants.    declare all the variables _RL ; use _d 0 for all numerical constants.
9245    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
9246    
9247  checkpoint46h_post  checkpoint46h_post (2002/09/25)
9248  o cleaned up the use of rhoNil and rhoConst.  o cleaned up the use of rhoNil and rhoConst.
9249    - rhoNil should only appear in the LINEAR equation of state, everywhere    - rhoNil should only appear in the LINEAR equation of state, everywhere
9250      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
# Line 1012  o introduced new parameter rhoConstFresh Line 9254  o introduced new parameter rhoConstFresh
9254    value is 999.8 kg/m^3    value is 999.8 kg/m^3
9255  o cleanup up external_forcing.F and external_forcing_surf.F  o cleanup up external_forcing.F and external_forcing_surf.F
9256    - can now be used by both OCEANIC and OCEANICP    - can now be used by both OCEANIC and OCEANICP
9257  checkpoint46h_pre  checkpoint46h_pre (2002/09/18)
9258    
9259   Added code to convert surface volume flux (fresh water) into   Added code to convert surface volume flux (fresh water) into
9260   a mass flux when using P coordinates in the ocean (OCEANICP).   a mass flux when using P coordinates in the ocean (OCEANICP).
9261   Note: It assumes you have set rho0=rhoConst=density of fresh water.   Note: It assumes you have set rho0=rhoConst=density of fresh water.
9262    
9263  checkpoint46g_post  checkpoint46g_post (2002/09/18)
9264  o Include a new diagnostic variable phiHydLow for the ocean model  o Include a new diagnostic variable phiHydLow for the ocean model
9265    - in z-coordinates, it is the bottom pressure anomaly    - in z-coordinates, it is the bottom pressure anomaly
9266    - in p-coordinates, it is the sea surface elevation    - in p-coordinates, it is the sea surface elevation
# Line 1036  o cleaned up find_rho Line 9278  o cleaned up find_rho
9278    - removed obsolete 'eqn' from the parameter list.    - removed obsolete 'eqn' from the parameter list.
9279  o added two new verification experiments: gop and goz  o added two new verification experiments: gop and goz
9280    (4x4 degree global ocean, 15 layers in pressure and height coordinates)    (4x4 degree global ocean, 15 layers in pressure and height coordinates)
9281  checkpoint46g_pre  checkpoint46g_pre (2002/09/16)
9282    
9283  checkpoint46f_post  checkpoint46f_post (2002/09/16)
9284  o Enable tangent linear (forward mode) gradient checks:  o Enable tangent linear (forward mode) gradient checks:
9285    - extended active file handling to g_... files    - extended active file handling to g_... files
9286    - added TANGENT_SIMULATION to theSimulationMode    - added TANGENT_SIMULATION to theSimulationMode
# Line 1046  o Enable tangent linear (forward mode) g Line 9288  o Enable tangent linear (forward mode) g
9288  o added tangent linear setup in verification/carbon/code_ftl  o added tangent linear setup in verification/carbon/code_ftl
9289  o added adjoint setup in verification/front_relax/code_ad  o added adjoint setup in verification/front_relax/code_ad
9290    
9291  checkpoint46e_post  checkpoint46e_post (2002/09/05)
9292  o Added new equation of state -> MDJWF  o Added new equation of state -> MDJWF
9293    - EOS of McDougall et al., 2002, JAOT, submitted    - EOS of McDougall et al., 2002, JAOT, submitted
9294    - caveat: the equation of state is only valid for a smaller (more    - caveat: the equation of state is only valid for a smaller (more
# Line 1055  o Added new equation of state -> MDJWF Line 9297  o Added new equation of state -> MDJWF
9297    - added more check values for density in check_eos (ini_eos.F), some of    - added more check values for density in check_eos (ini_eos.F), some of
9298      the old check values are out of the range of the MDJWF-eos, so don't      the old check values are out of the range of the MDJWF-eos, so don't
9299      expect perfect matches for those      expect perfect matches for those
9300  checkpoint46e_pre  checkpoint46e_pre (2002/08/19)
9301    
9302  checkpoint46d_post  checkpoint46d_post (2002/08/19)
9303  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
9304    'OCEANICP', also initialised field pressure correctly in ini_eos in the    'OCEANICP', also initialised field pressure correctly in ini_eos in the
9305    case of pressure coordinates. eosType='JMD95Z' in    case of pressure coordinates. eosType='JMD95Z' in
9306    combination with buoyancyRelation='OCEANICP' now causes an error.    combination with buoyancyRelation='OCEANICP' now causes an error.
9307  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
9308    in find_alpha/beta.    in find_alpha/beta.
9309  checkpoint46d_pre  checkpoint46d_pre (2002/08/15)
9310    
9311  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
9312    so that JMD95Z and JMD95P give approptiate static stability in find_rho.    so that JMD95Z and JMD95P give approptiate static stability in find_rho.
9313    
9314  checkpoint46c_post  checkpoint46c_post (2002/08/15)
9315  o Changes necessary for ocean in p-coordinates  o Changes necessary for ocean in p-coordinates
9316   -  Added new buoyancy relation = 'OCEANICP'   -  Added new buoyancy relation = 'OCEANICP'
9317   -  Added new parameters = gravitySign (this used to be contained inside   -  Added new parameters = gravitySign (this used to be contained inside
9318      the factor dRdZ which I added when we first switched to R coordinates).      the factor dRdZ which I added when we first switched to R coordinates).
9319   X GM/Redi is not compatible (yet)   X GM/Redi is not compatible (yet)
9320   X bottom drag and no-slip need to be debugged.   X bottom drag and no-slip need to be debugged.
9321  checkpoint46c_pre  checkpoint46c_pre (2002/08/07)
9322    
9323  checkpoint46b_post  checkpoint46b_post (2002/08/07)
9324  o Added new equation of state -> JMD95Z and JMD95P  o Added new equation of state -> JMD95Z and JMD95P
9325    - EOS of Jackett and McDougall, 1995, JAOT    - EOS of Jackett and McDougall, 1995, JAOT
9326    - moved all EOS parameters into EOS.h    - moved all EOS parameters into EOS.h
# Line 1087  o Added UNESCO EOS, but not recommended Line 9329  o Added UNESCO EOS, but not recommended
9329    in-situ temperature (see JMD95)    in-situ temperature (see JMD95)
9330  o Modified formatting for knudsen2.f in utils/knudsen2 and added  o Modified formatting for knudsen2.f in utils/knudsen2 and added
9331    unesco.f to be used with POLY3    unesco.f to be used with POLY3
9332  checkpoint46b_pre  checkpoint46b_pre (2002/07/31)
9333    
9334  checkpoint46a_post  checkpoint46a_post (2002/07/31)
9335  o Added (atmospheric) pressure loading  o Added (atmospheric) pressure loading
9336    - new field in FFIELDS.h, etc...    - new field in FFIELDS.h, etc...
9337    - new cpp flag ATMOSPHERIC_LOADING    - new cpp flag ATMOSPHERIC_LOADING
9338  o Changed hFacC to _hFacC in calc_phi_hyd.F  o Changed hFacC to _hFacC in calc_phi_hyd.F
9339  o Added SHORTWAVE_HEATING to some files for consistency  o Added SHORTWAVE_HEATING to some files for consistency
9340  checkpoint46a_pre  checkpoint46a_pre (2002/07/13)
9341    
9342  checkpoint46  checkpoint46 (2002/07/13)
9343  further merges from release1_p5  further merges from release1_p5
9344  o new ctrl package  o new ctrl package
9345    - adopted from ECCO environment to enable optimization    - adopted from ECCO environment to enable optimization
# Line 1124  o added hooks for Eliassen Palm fluxes ( Line 9366  o added hooks for Eliassen Palm fluxes (
9366  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
9367  o incorporated hooks for sponge layer code (external_forcing.F)  o incorporated hooks for sponge layer code (external_forcing.F)
9368    
9369  checkpoint45d_post  checkpoint45d_post (2002/07/12)
9370  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
9371  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
9372    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
# Line 1138  o add new flags: Line 9380  o add new flags:
9380   - for each tracer, define internal flag for multiDimAdvection & A-B   - for each tracer, define internal flag for multiDimAdvection & A-B
9381  o monitor: change definition of KE to check conservation of Energy  o monitor: change definition of KE to check conservation of Energy
9382    
9383  checkpoint45c_post  checkpoint45c_post (2002/05/30)
9384  o Removed f90 comments ("!")  o Removed f90 comments ("!")
9385  o Modified initialisations to enable exf package for MITgcm  o Modified initialisations to enable exf package for MITgcm
9386    (without invoking ECCO_PACKAGE).    (without invoking ECCO_PACKAGE).
# Line 1146  o modifications to gradient check packag Line 9388  o modifications to gradient check packag
9388    - enable centered differences    - enable centered differences
9389    - modified format of standard output    - modified format of standard output
9390    
9391  checkpoint45b_post  checkpoint45b_post (2002/05/30)
9392  o cleaned exchange calls in cg2d  o cleaned exchange calls in cg2d
9393  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
9394  o included CPP option SINGLE_LAYER_MODE in thermodynamics  o included CPP option SINGLE_LAYER_MODE in thermodynamics
# Line 1158  o in initialise_varia, moved call packag Line 9400  o in initialise_varia, moved call packag
9400    (corresponding adjustment of TAF tape initialisation).    (corresponding adjustment of TAF tape initialisation).
9401  o in calc_diffusivity/calc_viscosity extended domain to full overlap.  o in calc_diffusivity/calc_viscosity extended domain to full overlap.
9402    
9403  checkpoint45a_post  checkpoint45a_post (2002/05/01)
9404  o compute Rho over the whole domain (extend iMin,jMin indices)  o compute Rho over the whole domain (extend iMin,jMin indices)
9405  o specific exchange for X-slice domain (case Ny=1)  o specific exchange for X-slice domain (case Ny=1)
9406  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
# Line 1178  o errorMessageUnit set non-equal zero in Line 9420  o errorMessageUnit set non-equal zero in
9420    (conflict on some platforms, e.g. IBM SP3)    (conflict on some platforms, e.g. IBM SP3)
9421  o modified carbon verif.  o modified carbon verif.
9422    
9423  checkpoint44h_pre  checkpoint44h_pre (2002/03/14)
9424  o vertical grid option: allow to put the Interface at the middle between  o vertical grid option: allow to put the Interface at the middle between
9425    2 cell-centers ; replace delZ in pkg/kpp by drF.    2 cell-centers ; replace delZ in pkg/kpp by drF.
9426  o GM Advective form: Tracers are advected using the residual transport (=  o GM Advective form: Tracers are advected using the residual transport (=
9427    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
9428    
9429  checkpoint44g_post  checkpoint44g_post (2002/03/05)
9430  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
9431    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F
9432    
# Line 1249  o merge of relevant stuff from the ecco- Line 9491  o merge of relevant stuff from the ecco-
9491  o check parameters & config (chkpt44a_pre,post)  o check parameters & config (chkpt44a_pre,post)
9492  o OBC and NonLin_FrSurf.  o OBC and NonLin_FrSurf.
9493    
9494  checkpoint44  checkpoint44 (2002/01/18)
9495  o fix bug in mom_vi_del2uv  o fix bug in mom_vi_del2uv
9496  o select when filters are applied ; add options to zonal_filter (data.zonfilt)  o select when filters are applied ; add options to zonal_filter (data.zonfilt)
9497  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
# Line 1257  o update AIM experiments (NCEP input fil Line 9499  o update AIM experiments (NCEP input fil
9499  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
9500  o added some stuff for AD  o added some stuff for AD
9501    
9502  checkpoint43  checkpoint43 (2001/09/28)
9503  o added two new advection tests  o added two new advection tests
9504  o added global 4x4 degree ocean test  o added global 4x4 degree ocean test
9505  o added test of H&S94 with free surface on cube  o added test of H&S94 with free surface on cube
9506  o some final mods for gradient check, adjoint,...  o some final mods for gradient check, adjoint,...
9507    
9508  checkpoint42  checkpoint42 (2001/09/27)
9509    Fixed AD-related problems:    Fixed AD-related problems:
9510  o Store directives up-to-date with re-arranged Adams-Bashforth  o Store directives up-to-date with re-arranged Adams-Bashforth
9511    (mainly thermodynamics.F)    (mainly thermodynamics.F)
# Line 1275  o Modified store directives for split of Line 9517  o Modified store directives for split of
9517    for the case ALLOW_KPP    for the case ALLOW_KPP
9518  o Cleaned argument list for timestep_tracer.F  o Cleaned argument list for timestep_tracer.F
9519    
9520  checkpoint41  checkpoint41 (2001/09/27)
9521  o re-formatted/added comments in prologues of key subroutines  o re-formatted/added comments in prologues of key subroutines
9522    to work with protex    to work with protex
9523    
9524  checkpoint40  checkpoint40 (2001/09/27)
9525  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
9526  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment
9527  o re-arranged Adams-Bashforth scheme for tracers to allow easier  o re-arranged Adams-Bashforth scheme for tracers to allow easier
# Line 1288  o more mods for non-linear free-surface Line 9530  o more mods for non-linear free-surface
9530  o modified multi-dim method to work on cube  o modified multi-dim method to work on cube
9531  o bug fix in KPP (from DM)  o bug fix in KPP (from DM)
9532    
9533  checkpoint40pre9  checkpoint40pre9 (2001/09/27)
9534  o added DST advection schemes  o added DST advection schemes
9535  o fix MPI bug on SGI's  o fix MPI bug on SGI's
9536  o modifications for non-linear free-surface  o modifications for non-linear free-surface
# Line 1298  o changes to commenting of arguments for Line 9540  o changes to commenting of arguments for
9540  o added/updated many matlab scripts  o added/updated many matlab scripts
9541  o added multi-dimensional advection method for tracers  o added multi-dimensional advection method for tracers
9542        
9543  checkpoint40pre8  checkpoint40pre8 (2001/09/05)
9544  o new package rw/  o new package rw/
9545    Added method for dumping intermediate local arrays:    Added method for dumping intermediate local arrays:
9546    mdsio_writetile - same as mdsio_writefield except works from inside    mdsio_writetile - same as mdsio_writefield except works from inside
# Line 1317  o TAMC-related update to cope with mom_f Line 9559  o TAMC-related update to cope with mom_f
9559    currently nothing implemented to switch this storing off    currently nothing implemented to switch this storing off
9560    in case fluxform is used since no CPP flag available).    in case fluxform is used since no CPP flag available).
9561    
9562  checkpoint40pre7  checkpoint40pre7 (2001/08/14)
9563  o bug fix in dynamics.F  o bug fix in dynamics.F
9564    calc_viscosity called before k=1,Nr loop.    calc_viscosity called before k=1,Nr loop.
9565  o added some #ifdef's ALLOW_PASSIVE_TRACER  o added some #ifdef's ALLOW_PASSIVE_TRACER
9566  o cleaned initialisations in ctrl_map_ini  o cleaned initialisations in ctrl_map_ini
9567    related to TAF    related to TAF
9568    
9569  checkpoint40pre6  checkpoint40pre6 (2001/08/13)
9570  o split dynamics into thermodynamics & dynamics  o split dynamics into thermodynamics & dynamics
9571  o corresponding split of calc_diffusivity into  o corresponding split of calc_diffusivity into
9572    calc_diffusivity, calc_viscosity    calc_diffusivity, calc_viscosity
# Line 1332  o corresponding split of calc_diffusivit Line 9574  o corresponding split of calc_diffusivit
9574  o Added diffkr, kapgm to control variables  o Added diffkr, kapgm to control variables
9575  o bug fix in gmredi_slope_limit for ldd97  o bug fix in gmredi_slope_limit for ldd97
9576    
9577  checkpoint40pre5  checkpoint40pre5 (2001/07/31)
9578  o proper initialization of Adams-Bashforth time stepping  o proper initialization of Adams-Bashforth time stepping
9579    + uses forward step for very first step of model (iter=0)    + uses forward step for very first step of model (iter=0)
9580  o re-generated *all* output since almost all output is modified by this  o re-generated *all* output since almost all output is modified by this
# Line 1346  o added new expt "solid-body.cs-32x32x1" Line 9588  o added new expt "solid-body.cs-32x32x1"
9588    + this uses an alternative form of ini_curvilinear_grid.F which    + this uses an alternative form of ini_curvilinear_grid.F which
9589      is not necessarily any better than the current one...      is not necessarily any better than the current one...
9590    
9591  checkpoint40pre4  checkpoint40pre4 (2001/07/30)
9592  o added re-initialisations of utrans,vtrans,rtrans in  o added re-initialisations of utrans,vtrans,rtrans in
9593    calc_common_factors which are crucial for TAF.    calc_common_factors which are crucial for TAF.
9594  o extended iMin,jMin range for calc_common_factors,  o extended iMin,jMin range for calc_common_factors,
# Line 1354  o extended iMin,jMin range for calc_comm Line 9596  o extended iMin,jMin range for calc_comm
9596  o added option ALLOW_PASSIVE_TRACER  o added option ALLOW_PASSIVE_TRACER
9597  o a few minor updates and fixes  o a few minor updates and fixes
9598    
9599  checkpoint40pre3  checkpoint40pre3 (2001/07/13)
9600  o created calc_gtr1.F for gad package  o created calc_gtr1.F for gad package
9601  o split the_main_loop and re-introduced forward_step  o split the_main_loop and re-introduced forward_step
9602  o some recomputations of nIter0 for TAMC  o some recomputations of nIter0 for TAMC
9603    
9604  checkpoint40pre2  checkpoint40pre2 (2001/07/13)
9605  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
9606  o Added gradient check package  o Added gradient check package
9607  o Added routines for passive tracer handling  o Added routines for passive tracer handling
9608  o Added carbon sequestration sensitivity experiment  o Added carbon sequestration sensitivity experiment
9609    
9610  checkpoint39  checkpoint39 (2001/05/14)
9611   o Modifications and fixes to support TAMC   o Modifications and fixes to support TAMC
9612     (mainly missing or wrong directives)     (mainly missing or wrong directives)
9613   o Corrected common blocks when fooling TAMC to produce adjoint I/O   o Corrected common blocks when fooling TAMC to produce adjoint I/O
# Line 1379  checkpoint39 Line 9621  checkpoint39
9621           (NB: this is not the full ECCO environment)           (NB: this is not the full ECCO environment)
9622   o disabled some packages by default in genmake   o disabled some packages by default in genmake
9623    
9624  checkpoint38  checkpoint38 (2001/04/10)
9625   o see notes_c37_adj.txt   o see notes_c37_adj.txt
9626   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t
9627   o replaced the_main_loop/forward_step by the_main_loop   o replaced the_main_loop/forward_step by the_main_loop
# Line 1387  checkpoint38 Line 9629  checkpoint38
9629     (replaced criteria for initial/final state)     (replaced criteria for initial/final state)
9630   o added runtime flag for pre-C35 pickups: usePickupBeforeC35   o added runtime flag for pre-C35 pickups: usePickupBeforeC35
9631    
9632  checkpoint37  checkpoint37 (2001/03/13)
9633   o mdsio.F routine split and packaged in pkg/mdsio   o mdsio.F routine split and packaged in pkg/mdsio
9634     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
9635      used unless genmake -disable=mdsio)      used unless genmake -disable=mdsio)
# Line 1404  checkpoint37 Line 9646  checkpoint37
9646   o Non-Hydrostatic pickup file Pb fixed.   o Non-Hydrostatic pickup file Pb fixed.
9647   o bug with Rigid-lid version (since c35) fixed.     o bug with Rigid-lid version (since c35) fixed.  
9648    
9649  checkpoint36  checkpoint36 (2001/02/20)
9650   o implement Crank-Nickelson barotropic time-stepping   o implement Crank-Nickelson barotropic time-stepping
9651   o recover Time-Average diagnostics   o recover Time-Average diagnostics
9652   o fix Pb in checkpoint (PR#19)   o fix Pb in checkpoint (PR#19)
9653   o AIM become a standard package ; clean unused CPP_kees   o AIM become a standard package ; clean unused CPP_kees
9654    
9655  checkpoint35  checkpoint35 (2001/02/08)
9656   o subtantial rewrite of dynamics.f   o subtantial rewrite of dynamics.f
9657   o allows staggered time-stepping   o allows staggered time-stepping
9658   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
9659   o added bottom drag (linear + quadratic)   o added bottom drag (linear + quadratic)
9660    
9661  checkpoint34  checkpoint34 (2001/01/30)
9662   o Modified exchange routines for correct reverse simulation.   o Modified exchange routines for correct reverse simulation.
9663   o Added verification output to comply with bug fix in impldiff.F   o Added verification output to comply with bug fix in impldiff.F
9664     as of c33 (exp2, natl_box).     as of c33 (exp2, natl_box).
# Line 1427  checkpoint34 Line 9669  checkpoint34
9669   o Added routine GLOBAL_SUM_INT to global_sum.F   o Added routine GLOBAL_SUM_INT to global_sum.F
9670   o Added mdsio_gl.F for ECCO purposes.   o Added mdsio_gl.F for ECCO purposes.
9671    
9672  checkpoint33  checkpoint33 (2000/11/30)
9673   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
9674   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h
9675     namely Fu,Fv,Qnet,Qsw,EmPmR:     namely Fu,Fv,Qnet,Qsw,EmPmR:
# Line 1445  checkpoint33 Line 9687  checkpoint33
9687       possibly use them.       possibly use them.
9688   o Corrected genmake to delete a temporary file during configuration   o Corrected genmake to delete a temporary file during configuration
9689    
9690  checkpoint32  checkpoint32 (2000/11/13)
9691   o Scaling of forcing fields moved from external_forcing.F to   o Scaling of forcing fields moved from external_forcing.F to
9692     external_fields_scale.F, called directly after loading fields.     external_fields_scale.F, called directly after loading fields.
9693   o Surface relaxation terms added to surface tendency fields in   o Surface relaxation terms added to surface tendency fields in
# Line 1456  checkpoint32 Line 9698  checkpoint32
9698   o Modifications and bug fixes in KPP package.   o Modifications and bug fixes in KPP package.
9699   o Verification experiment for KPP added (verification/nat_box/)   o Verification experiment for KPP added (verification/nat_box/)
9700    
9701  checkpoint31  checkpoint31 (2000/09/11)
9702   o Packages interface brought in line with defined standard   o Packages interface brought in line with defined standard
9703     -> new routines packages_...F     -> new routines packages_...F
9704     -> changes in initialise_fixed.F, initialise_varia.F     -> changes in initialise_fixed.F, initialise_varia.F
# Line 1473  checkpoint31 Line 9715  checkpoint31
9715     - not yet tested for GMRedi.     - not yet tested for GMRedi.
9716     - not yet tested for KPP.     - not yet tested for KPP.
9717    
9718  checkpoint30  checkpoint30 (2000/07/13)
9719   o Updates for OBCs   o Updates for OBCs
9720   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)
9721   o New output.txt in verification/exp4/results/   o New output.txt in verification/exp4/results/
# Line 1482  checkpoint30 Line 9724  checkpoint30
9724   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
9725     and entry for T90 in genmake     and entry for T90 in genmake
9726    
9727  checkpoint29  checkpoint29 (2000/06/21)
9728   o packaged KPP and GM/Redi   o packaged KPP and GM/Redi
9729    
9730  checkpoint28  checkpoint28 (2000/06/09)
9731   o Corrected initialization of hFacMin for difference vertical coordinates   o Corrected initialization of hFacMin for difference vertical coordinates
9732   o Modified calculation of partial cell thickness to more robust algorithm   o Modified calculation of partial cell thickness to more robust algorithm
9733   o config_summary.F: replaced write_1D_... by write_0D_...   o config_summary.F: replaced write_1D_... by write_0D_...
# Line 1498  checkpoint28 Line 9740  checkpoint28
9740     included store directives and tape key computations required for TAMC.     included store directives and tape key computations required for TAMC.
9741   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
9742    
9743  checkpoint27  checkpoint27 (2000/04/10)
9744   o fixed calc_isoslopes() to so that cancellation of terms in tensor   o fixed calc_isoslopes() to so that cancellation of terms in tensor
9745     formulation works properly with variable resolution.     formulation works properly with variable resolution.
9746   o restructured the calling tree between the_model_main() and dynamics()   o restructured the calling tree between the_model_main() and dynamics()
# Line 1506  checkpoint27 Line 9748  checkpoint27
9748   o introduced initialization file pSurfInitFile for free surface (cg2d_x)   o introduced initialization file pSurfInitFile for free surface (cg2d_x)
9749     in new routine ini_psurf()     in new routine ini_psurf()
9750    
9751  checkpoint26  checkpoint26 (2000/04/05)
9752   o moved some #ifdef in optional routines to encompass everything   o moved some #ifdef in optional routines to encompass everything
9753     except the argument declarations. This was using up some memory.     except the argument declarations. This was using up some memory.
9754   o fixed macros like _ADT to work with both versions of Linux cpp   o fixed macros like _ADT to work with both versions of Linux cpp
# Line 1516  checkpoint26 Line 9758  checkpoint26
9758     (macros are now in eesupp/inc/CPP_EEMACROS.h)     (macros are now in eesupp/inc/CPP_EEMACROS.h)
9759   o patch for 2 processor JAM mode   o patch for 2 processor JAM mode
9760    
9761  checkpoint25  checkpoint25 (2000/03/15)
9762   o updates for OBCs and NH   o updates for OBCs and NH
9763   o dramatically reduced memory usage   o dramatically reduced memory usage
9764   o added "JAM" routines for use on Artic network   o added "JAM" routines for use on Artic network
# Line 1527  checkpoint25 Line 9769  checkpoint25
9769      an explicit free-surface option)      an explicit free-surface option)
9770   o initial state input files for U and V   o initial state input files for U and V
9771    
9772  checkpoint24  checkpoint24 (1999/08/02)
9773   o Removed some spurious "REAL"s   o Removed some spurious "REAL"s
9774   o Updated KPP to latest version from JPL   o Updated KPP to latest version from JPL
9775   o Added a COS(latitude) in horizontal viscosity   o Added a COS(latitude) in horizontal viscosity
9776    
9777  checkpoint23  checkpoint23 (1999/05/26)
9778   o Added del^4 diffusion for salt and temperature   o Added del^4 diffusion for salt and temperature
9779   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
9780    
9781  checkpoint22  checkpoint22 (1999/05/18)
9782   o Made many small changes: implicit none, format(i5), etc...   o Made many small changes: implicit none, format(i5), etc...
9783   o Introduced KPP mixing scheme (compiles and runs but *not* tested)   o Introduced KPP mixing scheme (compiles and runs but *not* tested)
9784    
9785  checkpoint21  checkpoint21 (1999/05/18)
9786   o Introduced new I/O package that supports direct-access records (mdsio.F)   o Introduced new I/O package that supports direct-access records (mdsio.F)
9787   o Split-up mid-level I/O routines   o Split-up mid-level I/O routines
9788   o Updated input data for experiments 0,1,2,4 and 5   o Updated input data for experiments 0,1,2,4 and 5
9789   o Finally removed the genmake.* scripts (everyone seems happy with genmake)   o Finally removed the genmake.* scripts (everyone seems happy with genmake)
9790    
9791  checkpoint20  checkpoint20 (1999/03/22)
9792   o Tidied up open-boundaries some more   o Tidied up open-boundaries some more
9793   o Added non-hydrostatic code   o Added non-hydrostatic code
9794   o Fixed some input data   o Fixed some input data
9795   o Modified MPI start-up to work in "coupled" context.   o Modified MPI start-up to work in "coupled" context.
9796    
9797  checkpoint19  checkpoint19 (1998/12/15)
9798   o Tidied up directory structure for verification experiments.   o Tidied up directory structure for verification experiments.
9799   o Added new code for open boundaries.   o Added new code for open boundaries.
9800   o Corrected advective terms near boundaries.   o Corrected advective terms near boundaries.
# Line 1560  checkpoint19 Line 9802  checkpoint19
9802   o Implemented free-slip/no-slip BCs and del^4 dissipation.   o Implemented free-slip/no-slip BCs and del^4 dissipation.
9803   o Split default parameters out of ini_parms.F into set_defaults.F.   o Split default parameters out of ini_parms.F into set_defaults.F.
9804    
9805  checkpoint18  checkpoint18 (1998/11/30)
9806   o Further changes for optional code generation with   o Further changes for optional code generation with
9807     CPP - ugh!     CPP - ugh!
9808    
9809  checkpoint17  checkpoint17 (1998/11/03)
9810   o Beginning to incorporating modularity   o Beginning to incorporating modularity
9811     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.
9812   o Small changes for TAMC complinace   o Small changes for TAMC complinace
9813   o New ultra simple test case. Barotropic box   o New ultra simple test case. Barotropic box
9814     configuration "exp0".     configuration "exp0".
9815    
9816  checkpoint16  checkpoint16 (1998/10/28)
9817   o Minor changes to exchange routines to support   o Minor changes to exchange routines to support
9818     accumulation in reverse mode. Adjoint of an     accumulation in reverse mode. Adjoint of an
9819     assignment is an addition.     assignment is an addition.
# Line 1579  checkpoint16 Line 9821  checkpoint16
9821     syntax) and by g77 under Linux ( 72 character     syntax) and by g77 under Linux ( 72 character
9822     limit ).     limit ).
9823    
9824  checkpoint15  checkpoint15 (1998/09/29)
9825   Rewrote exchange routines to allow   Rewrote exchange routines to allow
9826   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.
9827   o TAMC reverse mode flag ( is this really needed? )   o TAMC reverse mode flag ( is this really needed? )
# Line 1588  checkpoint15 Line 9830  checkpoint15
9830     shmput/shmget, VIA, SYSV shmem and every other cool     shmput/shmget, VIA, SYSV shmem and every other cool
9831     communication method.     communication method.
9832    
9833  checkpoint14  checkpoint14 (1998/09/09)
9834   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
9835   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.
9836    
9837  checkpoint13  checkpoint13 (1998/07/17)
9838   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
9839   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains
9840   a double-gyre experiment setup as well as the baseline   a double-gyre experiment setup as well as the baseline
# Line 1607  branch-point-rdot Line 9849  branch-point-rdot
9849   I don't want to commit the rDot to the main-trunk until   I don't want to commit the rDot to the main-trunk until
9850   we've actually tested it...   we've actually tested it...
9851    
9852  checkpoint12  checkpoint12 (1998/07/08)
9853   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
9854   configure script).   configure script).
9855   Released to testers.   Released to testers.
9856    
9857  checkpoint11  checkpoint11 (1998/07/02)
9858   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
9859   and ini_masks_etc().   and ini_masks_etc().
9860    
9861  checkpoint10  checkpoint10 (1998/07/01)
9862   Introduced the configure script.   Introduced the configure script.
9863   Separated out the diags package.   Separated out the diags package.
9864   Added template for writing time-averages of tile/intermediate quantities.   Added template for writing time-averages of tile/intermediate quantities.
9865   Updated SIZE.h in exp2 and made the data big-endian.   Updated SIZE.h in exp2 and made the data big-endian.
9866    
9867  checkpoint9  checkpoint9 (1998/06/22)
9868   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
9869   General tidy-up.   General tidy-up.
9870   SST.bin SSS.bin added to verification/exp2   SST.bin SSS.bin added to verification/exp2
9871    
9872  checkpoint8  checkpoint8 (1998/06/22)
9873   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
9874   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global
9875    
# Line 1637  checkpoint7-4degree-ref Line 9879  checkpoint7-4degree-ref
9879   model etc..   model etc..
9880   Configured for verification/exp2 - 4 degree global, two process.   Configured for verification/exp2 - 4 degree global, two process.
9881    
9882  checkpoint7  checkpoint7 (1998/06/15)
9883   Created by cnh   Created by cnh
9884   Simple 4 degree global simulation   Simple 4 degree global simulation
9885   configuration.   configuration.
# Line 1645  checkpoint7 Line 9887  checkpoint7
9887   hydrography, bathymetry etc   hydrography, bathymetry etc
9888   Does not include Heat Flux and E-P   Does not include Heat Flux and E-P
9889    
9890  checkpoint6  checkpoint6 (1998/06/08)
9891   Created by cnh   Created by cnh
9892   merged checkpoint5 with CD and   merged checkpoint5 with CD and
9893   spherical polar code.   spherical polar code.
9894   Still some problems with GM Redi   Still some problems with GM Redi
9895   abd full topography.   abd full topography.
9896    
9897  checkpoint5  checkpoint5 (1998/06/08)
9898   Created by AJA   Created by AJA
9899   contains updates to GM Redi   contains updates to GM Redi
9900   and reordered timestepping loop   and reordered timestepping loop
9901   for Implicit Diffusion.   for Implicit Diffusion.
9902    
9903  checkpoint4  checkpoint4 (1998/05/30)
9904   Created by cnh   Created by cnh
9905   Contains memory saving macros ( _rdxc etc..) for when   Contains memory saving macros ( _rdxc etc..) for when
9906   grid variations are limited.   grid variations are limited.
9907   Contains polynomial coeffs for EOS and knudsen program   Contains polynomial coeffs for EOS and knudsen program
9908   for generation.   for generation.
9909    
9910  checkpoint3  checkpoint3 (1998/05/26)
9911   Created by cnh   Created by cnh
9912   Added extra flags for runtime options   Added extra flags for runtime options
9913   Added this file   Added this file

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