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revision 1.1980 by mlosch, Wed Apr 23 12:42:19 2014 UTC revision 1.2204 by jmc, Fri Nov 20 02:13:54 2015 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o eesupp & genmake2:
8      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME)
9    o pkg/seaice/seaice_evp:
10      - refine residual computation
11    
12    checkpoint65q (2015/11/18)
13    o pkg/seaice/seaice_evp:
14      - fix residual computations so that they no longer affect the actual
15        simulation code
16      - fix seaice_readparams to be able to actually set new parameters
17        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
18    o model/src:
19      - fix wrong truncation (single prec) from "FLOAT" function in expressions
20        like: deltaT*FLOAT(myIter) when myIter is large:
21         a) replaced by DFLOAT (if not seen by TAF);
22         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
23    o pkg/aim_v23:
24      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
25        when pickupSuff is set ; do write rolling pickups + at the end of the run.
26    o pkg/atm_ocn_coupler + ocn_compon_interf:
27      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
28        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
29        add corresponding call in DO_OCEANIC_PHYS.
30    o coupler pkgs:
31      Start a new way to set-up optionally-exchanged variables (previously, only
32       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
33       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
34       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
35       compononent param default can be set accordingly).
36      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
37       but rather applies to a group a fields (going both ways like for DIC)
38       and corresponds to an option of coupling config.
39      coupler (pkg/atm_ocn_coupler):
40      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
41        and read namelist directly (without eessup S/R calls) instead of
42        in the very un-flexible old way, 1 param per line, in fixed order;
43      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
44        cleanly in CPL_CHECK_CPLCONFIG
45      - add new coupling-exchange selectors (some not yet active) including
46        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
47                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
48      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
49        component ; called directly from coupler.F, after comp. registrations;
50      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
51         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
52          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
53      components (pkg/atm_ & ocn_compon_interf):
54      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
55        CPP header file in all pkg source files.
56      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
57        ATM/OCN_CHECK_CPLCONFIG;
58      - add error-counter to track errors (e.g., in "data.cpl") and to stop
59        cleanly in ATM/OCN_CHECK_CPLCONFIG;
60      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
61        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
62        before PACKAGES_READPARMS;
63      verification/cpl_aim+ocn/:
64      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
65        "data.cpl" for coupler (in input_cpl).
66    o eesupp/inc:
67      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
68        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
69        to always cumulate tile local-sum in the same order (still uses
70        MPI_Allreduce like standard code).
71      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
72        that are now identical to standard version (in eesupp/inc).
73    o pkg/shelfice:
74      - add SHELFICETransCoeffTFile for initializing spatially varying
75        heat and salt transfer coefficients
76    o pkg/atm_compon_interf & ocn_compon_interf:
77      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
78        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
79      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
80    o pkg/atm_ocn_coupler:
81      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
82    o pkg/rbcs:
83      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
84        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
85      - add a short report (to STDOUT) about RBCS-mask settings.
86    
87    checkpoint65p (2015/10/23)
88    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
89        there is no adjoint test for EVP, we don't know what it does to the adjoint
90        solution, but at least there are no more recomputation warnings left
91    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
92        a chance of giving the same results as a fully converged VP (JFNK) solver
93    o tools/adjoint_options/adjoint_diva:
94      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
95    o pkg/streamice:
96      - spotted bug in streamice_driving_stress using dyG where should have been dxG
97    o pkg/exf:
98      - remove STOP statement that prevented to use wind or (wind-)stress
99        interpolation for constant-in-time forcing fields (wind/stress period = 0).
100    o pkg/seaice:
101      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
102        5 additionals 2D fields and 6 new store directives
103      - change logic in seaice_readparms.F: EVP code can now be turned on in
104        various ways, setting SEAICE_deltaTev is no longer required,
105        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
106        or SEAICEaEVPcoeff
107    o pkg/shelfice/shelfice_thermodynamics.F
108      - redefining uLoc/vLoc to u/v, instead of 2u/v
109    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
110      - this is an intermediate state of a truely converging EVP that has
111        the potential of outperforming implicit VP methods, I do not recommend
112        using it yet.
113      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
114        and all parameters are hardwired
115      - for convergence it still requires very smooth regularisations, that means,
116        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
117        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
118        specific averaging appears to be required, still subject to tuning
119      - still needs cleaning and I need to turn parameter into runtime parameters
120      - add code to compute and print residuals of iteration, compile with
121        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
122    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
123      that entered with r1.54 on Sep04, 2015, -> update results
124    
125    checkpoint65o (2015/09/14)
126    o pkg/mom_vecinv & mom_common:
127      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
128        called from there.
129      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
130        allows to use Vector-Invariant form in deep atmos and anelastic formulation
131    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
132      and Koenig-Beatty+Holland (2012)
133      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
134      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
135      - requires an extra input argument for S/R seaice_calc_viscosities
136      - tensileStrength's depth dependence is different from Itkin et al. (2015)
137        (to be changed and played with, for now exponential)
138    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
139      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
140        by AREA according to Connelly et al. (2004), JPO.
141      - For EVP and the LSR solver, the implicit part of the drag term is
142        the only non-zero term in the denominator when there is no ice (which
143        prevented running the model with zero ice-ocean drag). If
144        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
145        (or zero main diagonals BU/BV) which need to be caught. A practical
146        consequence is that for open water, the momentum equation reduce
147        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
148        they happen to be zero, often leading to a non-zero solution over
149        open water.
150    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
151        efficient EVP method.
152      - introduce area-weighted averages for e12 (analogously to
153        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
154        remain, but also changing the order of terms in the previous average
155        changed the results as much) -> update experiment
156      - add SEAICE_DELTA_SMOOTHREG code
157      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
158        TEM-code
159      - adjust loop bounds so that only required fields are computed
160      - add new averaging code for zetaZ/deltaZ (again similar to
161        seaice_calc_viscosities.F), inactive by default for now (will change
162        results again), but will replace old code eventually
163    o eesupp/src:
164      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
165        to always cumulate tile local-sum in the same order
166        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
167        Still uses MPI_Allreduce (like standard code) but on array of tiles
168        and should be faster than GLOBAL_SUM_SEND_RECV code.
169      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
170        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
171      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
172         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
173         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
174         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
175         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
176    
177    checkpoint65n (2015/07/29)
178    o pkg/thsice:
179      - add a warning when used with pkg/aim but without updating SST
180        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
181    o pkg/offline:
182      - change where Offline-Fields are loaded, from load_fields_driver.F to
183        directly within FORWARD_STEP, just after updating iter number and time;
184      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
185        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
186       These changes allow:
187        a) to recover exactly on-line results using deltaToffline=deltaTClock,
188        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
189        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
190        time-step, both with GM & KPP files and with recomputing these fields;
191        b) no needs to switch on staggerTimeStep anymore;
192        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
193      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
194    o pkg/offline:
195      - change (rarely used) offset-iteration parameter to an offset time (in s):
196        can easily recover previous offset-iter effect by setting offset-time
197        (offlineTimeOffset) to offset-iter x deltaToffline;
198      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
199        in KPP as part of surface buoyancy forcing) in offline run.
200      - fix ptracers KPP non-local term in the case where KPP is re-computed.
201    o OpenAD
202      - Adding preliminary ggl90 test to OpenAD verification.
203        Config. with ggl90 currently diverges after 64 time steps
204        so will need more work to become more stable
205      - Adding preliminary kpp test to OpenAD verification.
206        required small tweakes in kpp_routines.F
207      - Merge and update from Krishna Narayanan's contrib area:
208        * Add one variable for preliminary OpenAD DIVA
209        * Add replacement time-stepping for OpenAD DIVA
210        * genmake2 flag -diva (but only for OpenAD; preliminary)
211        * required modifs for OAD_support
212        successful preliminary test for tutorial_global_oce_biogeo/
213    o pkg/seaice:
214      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
215      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
216        delta with a smooth function in s/r seaice_calc_viscosity
217        (no effect on EVP)
218      - rename local suffix "sqr" into "sq" for more consistent variable names
219    o pkg/seaice:
220        add new parameter SEAICE_deltaMin that is used ***only***
221        for regularizing Delta (and nothing else, like the parameter
222        which is also used for all sorts of things SEAICE_EPS).
223        Defaults to SEAICE_EPS for backward compatibility only.
224    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
225        the wrong key by inialising it before use -> fixes a recomputation
226        problem but does not fix the gradient
227    o pkg/layers:
228      - move resetting of flux arrays to outside the iLa loop
229        (this caused layers_diapycnal to not work with more than one layer coord.)
230      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
231    o pkg/layers:
232      - remove from common block 3D layers fields (used to diagnose transport
233        in tracer coords) and declare them as local arrays in layers_calc.F
234    o pkg/seaice:
235      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
236        in lab_sea forward experiment (changes results -> updated)
237      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
238    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
239       computations; for SEAICE_VECTORIZE_LSR
240      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
241        sweep to the outside,
242      - remove store directives and add "CADJ loop sequential" directives
243        in analogy to model/src/solve_tridiagonal.F
244      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
245        boundaries to yield more readable code. This has also the charming side
246        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
247        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
248        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
249        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
250        an additional option)
251       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
252       but the adjoint gradients (which are affected by this change) still explode.
253    o coupler (atm & ocn _compon_interf):
254      - avoid using Exch2 IO mapping if not suitable.
255    
256    checkpoint65m (2015/06/15)
257    o pkg/layers:
258      - clean-up old parameters setting (from Sep 2012):
259        + remove old parameters setting from common block (declared locally);
260        + stop if any old parameter is mixed with new parameters;
261        + check for valid or consistent parameter setting (e.g., layers_name)
262      - check that layers_bounds for Pot.Density are in the right range;
263        this is supposed to catch un-updated setting after recently shifting
264        potential density field "prho" by -1000 (now in "sigma" scale).
265    o pkg/layers:
266      - Added missing call to layers_fill for keeping track of tottend in
267        pkg/diagnostics/diagnostics_fill_state.F
268    o pkg/layers:
269      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
270        of diapycnal fluxes
271    o pkg/layers:
272      - reverted changes to interpolation to previous treatment; there
273        was never actually a problem
274    o pkg/layers:
275      - fix interpolation of layers tracers in the presence of partial cells
276      - add lots of new functionality to compute water mass transformation
277        (enabled by CPP flag LAYERS_THERMODYNAMICS)
278      - add new calls from main code (diags_oceanic_surf_flux.F,
279        thermodynamics.F, impldiff.F) and gad to save the necessary fields
280        for layers_thermodynamics calculations
281    o pkg/ptracers:
282      - add capability of stepping a passive tracer forward without advection
283        by setting PTRACERS_advScheme to 0.
284    o pkg/diagnostics:
285      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
286    o pkg/layers:
287      - shift potential density field "prho" by -1000 for density layer averaging so
288        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
289        Note that density bin boundaries (layers_bounds in data.layers) have
290        to be set accordingly (i.e., shifted, in sigma scale).
291    o pkg/layers:
292      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
293      - fix calculation of layer non-weighted velocity and layer probability
294      - add diagnostics for pot.density used for layer averaging
295    o pkg/seaice:
296      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
297        positiveness, modify a few comments and improve variable names,
298      - the changed computation of deltaC affects most seaice-related
299        experiments at the truncation level.
300        seaice_itd.thermo is affected by far the most, with
301        only 7 digits of agreement remaining; update experiments.
302    
303    checkpoint65l (2015/05/04)
304    o pkg/shelfice:
305      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
306        factor drKp1 to zero where it is negative (ie. do not use
307        SHELFICEBoundaryLayer if hFacC>1)
308      - the same for factor drLoc in shelfice_forcing.F
309    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
310        with modules in ptracers, when using testreport option "-small_f"
311    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
312      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
313    o verification/testreport
314      - add new option -small_f
315        with this option testreport first makes the target small_f (*.f files)
316        before running make (all). This is useful for explicit inlining when
317        all sources need to be full available.
318    o pkg/exf/exf_interp.F:
319        remove previous changes related to reverse (decreasing) input grids latitude
320    
321    checkpoint65k (2015/04/01)
322    o pkg/ecco:
323        fix missing cosphi initialization; use eccoiter in place of optimcycle;
324        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
325        instead of active read/write
326    o pkg/ctrl:
327        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
328        instead of active read/write.
329    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
330        return if .NOT.useAUTODIFF
331    o pkg/seaice: add CPP brackets (cost function related).
332    o model/src:
333        add useAUTODIFF run time switch.
334    o pkg/exf/exf_interp.F:
335        add code to allow input grids with latitude starting in the north (i.e. when
336        j=1 corresponds to northern edge of field); modify global_with_exf to test
337        this feature.
338    o verification/testreport:
339      - replace "grep -A3" with POSIX conformal sed command, because there are
340        implementations of grep that cannot do contextual searches
341      - replace "cat -n" by "nl" (two occurrences), because not all implementations
342        of "cat" have the option "-n"
343    o model/src:
344        add new file gsw_teos10.F that contains 3 functions, more or less a copy
345        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
346        convert from conservative to potential temperature. For now they are not
347        called anywhere.
348    o pkg/ggl90: make "useIDEMIX" useful
349      - re-organize code in s/r ggl90_calc a little to move computations that
350        are different for idemix into separate loops (changes verification
351        experiment idemix at truncation level, 12 digits remain -> updated)
352      - requires 2 new 2D fields KappaM, verticalShear
353      - make hFacI and recip_hFacI local 3D variables that are passed to
354        s/r ggl90_idemix
355      - fix and improve some comments
356    
357    checkpoint65j (2015/02/25)
358    o pkg/openad
359      - synchronize seawater.F with version in model/src: replace routine
360        body of sw_temp by calling sw_ptmp and fix/add a few comments.
361    o pkg/mnc:
362      - change default value of pickup_read/write_mnc params to FALSE
363        (since few features are missing in reading MNC pickup files).
364    o model/src:
365      - change default (background) vertical diffusivity for salt to be the
366        temperature (background) vertical diffusivity.
367      - change background vertical diffusivity in vertical mixing pkgs ggl90,
368        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
369        This makes ptracers default diffusivity (that uses salt diffKr) more
370        consistent with vertical mixing schemes.
371    o verification/testreport:
372      - fix typo in "-pcls" option ;
373      - put temp files in /tmp (instead of in local dir)
374      - add option "-ncad" to use genmake2 new option "-nocat4ad"
375      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
376    o pkg/ggl90 (idemix code):
377      - apply few fixes ; add some missing "_d 0" ; update output of exp.
378        global_ocean.90x40x15.idemix
379    o OpenAD
380      - enable active file I/O and begin removal of work-around code
381        for OpenAD for handling control variables (memory vs. active files)
382      - new CPP options file OPENAD_OPTIONS.h
383      - revert to genarr2d gradient check for hs94.1x64x5
384      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
385      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
386    o tools/genmake2:
387      - add option for an alternative Makefile (from Martin) where multiple
388        source files are sent to TAF (instead of all in one file).
389    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
390      - code provided by Carsten Eden as an extension of ggl90
391      - so far the code is turned on within ggl90 by setting a CPP-flag at
392        compile time; a runtime flag implementation is not yet complete
393      - tested in new verification experiment global_ocean.90x40x15.idemix
394    o verification:
395      - reduce length of the AD test run by half for experiments
396        global_ocean.cs32x15 (std + thsice) and isomip
397      - enable active file I/O for OpenAD, adjust verifications accordingly
398      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
399    o verification/testreport:
400      - fix two non-POSIX sed statements so that there are no error messages
401        on Mac OS X
402      - replace hostname -s with hostname | sed 's/\..*$//'
403    o model/src/seawater.F:
404      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
405        (following the matlab code), which would have avoided the bug caught
406        by Matt (see below) in the first place
407    o pkg/shelfice:
408      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
409        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
410      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
411        ice-shelf case (i.e., within surface level).
412      - add config summary in shelfice_check.F
413      - remove global variable recip_SHELFICElatentHeat and replace by a local
414        variable recip_latentHeat
415      - introduce diagnostics for friction velocity uStar (in case of
416        SHELFICEuseGammaFrict)
417      - change verification experiment isomip.htd:
418        + start from pickup (as input_ad at nIter0=8640)
419        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
420        + test SHELFICEuseGammaFrict = .TRUE.
421        + test SHELFICEadvDiffHeatFlux = .TRUE.
422    o model/src:
423      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
424        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
425        update output of experiments global_with_exf.yearly and isomip (all 6).
426    o pkg/shelfice:
427      - change setting of kTopC to also be zero where there is no ice-shelf.
428      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
429        ice-shelf is.
430      - first attempt to get RealFreshWaterFlux effects: for now, only without
431        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
432    o pkg/seaice: add the option to prescribe a fixed thickness PDF
433      for thermodynamic calculations
434      - because of divisions of the type 7/7 not exactly equal to 1, this change
435        affects results of some verification experiments by up to 4 digits:
436        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
437        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
438        adjoint: lab_sea, lab_sea.noseaicedyn
439        -> updated
440    
441    checkpoint65i (2015/01/23)
442    o model/src:
443      - change units of frictionHeating field from W to W/m^2
444      - fix bug in frictional heating from stratospheric drag in
445        S/R ATM_PHYS_TENDENCY_APPLY_V
446      - with synchronous time-stepping: move resetting to zero of frictionHeating
447        field from load_fields_driver.F to thermodynamics.F ;
448      - add diagnostics for frictional heating.
449    o model/src & gmredi K3D:
450      - add frictionHeating field to pickup-files (for synchronous time-stepping)
451      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
452      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
453        and name in pickup file).
454      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
455    o model/src:
456      - move (from ini_forcing.F) initialisation of all arrays in header file
457        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
458        (since Nov 2012) with option selectAddFluid=1.
459    o pkg/shelfice:
460      - change units (+ document) of newly added field "shelfIceMassDynTendency"
461      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
462    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
463    o pkg/seaice: two new runtime parameters:
464      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
465        long overdue
466      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
467        parameterization of tensil stress for fast ice (does not do anything yet)
468    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
469        for LSR: move checking overlaps out of JFNK-if-block
470    o pkg/atm_phys:
471      - move copy of grid and dynamical fields out of atm_phys_driver.F into
472        new S/R ATM_PHYS_DYN2PHYS.
473      - fix level height for Linear Free-Surf case (to be consistent with
474        fixed-in-time pressure levels).
475    o pkg/mom_common (bottomdrag):
476      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
477        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
478        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
479    o pkg/shelfice (u/v_drag):
480      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
481      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
482        (now similar to shelfice_u_drag.F)
483      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
484        from mom_vecinv.F (similar to mom_fluxform calls).
485    o pkg/mom_common (bottomdrag):
486      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
487      - add options for alternative discretisation of velocity norm in quadratic
488        bottom drag: averaging of grid-cell-center KE to U.point and V.point
489        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
490        improves when averaging only the other component (e.g. vVel for U bottom
491        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
492      - add options (bottomVisc_pCell) to account for partial-cell in bottom
493        friction (no-slip BC) thus getting the true distance from the bottom;
494        off by default since this also reduces model stability (explicit bottom
495        friction). Changes produce different machine truncation with linear-drag
496        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
497        front_relax (bvp & mxl, 10 & 11 digits).
498    o model/src & mom pkgs:
499      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
500        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
501      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
502        just copy level Nr value to level Nr+1.
503    o doc:
504      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
505    o pkg/streamice:
506      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
507        SHELFICE.h: move array shelficemass to init_varia, initialise
508        from array shelficemassinit, which is set in init_fixed and
509        has option to be set from file; introduce array
510        shelficeMassDynTend array, set thru file in init_fixed
511      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
512        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
513        pkg/streamice
514      - shelfice_thermodynamics.F: call shelfice_step_icemass if
515        SHELFICEMassStepping = .true.
516      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
517    
518    checkpoint65h (2014/12/17)
519    o verification/global_ocean.90x40x15, global_ocean_ebm:
520      - update to generic controls.
521    o pkg/ctrl:
522      - ctrl_map_ini_genarr.F: test for igen>0
523      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
524      - move gentim2d part of ctrl_map_ini_genarr.F to
525        new separate routine : ctrl_map_ini_gentim2d.F
526      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
527        add time variable weights and cyclic controls (time mean,
528        seasonal cycle, etc) capabilities to gentim2d
529    o pkg/ecco:
530      - move reading of error, conversion to weights from
531        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
532    o global_oce_llc90, cs32:
533      - activte sbo.
534      - CTRL_SIZE.h : add maxCtrlProc.
535      - activate the new genctrl capabilities.
536      - update following reorganization of global_oce_input_fields.tar.gz  
537    o pkg/ctrl/ctrl_ad_diff.list:
538      - add missing ctrl_init_rec.f
539    o tools/OAD_support/keepOriginal:
540      - add ctrl_init_rec.F
541    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
542      - avoid recomputations of xx_gentim2d_dummy.
543    o momentum diagnostics:
544      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
545        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
546    o pkg/seaice/seaice_lsr.F:
547      - fix computation of BU/BV, make sure they are non-zero, only necessary
548        for cubed sphere exchanges and SEAICE_OLx/y>0.
549        This makes calling s/r fill_cs_corner_rl obsolete (removed).
550    o verification/global_ocean.cs32x15/input.seaice
551      - add test for strong implicit coupling and restricted addtive Schwarz
552        methods for LSR
553      - update results/output.seaice.txt
554    o verification/tutorial_global_oce_biogeo:
555      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
556        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
557        update output_adm,_oadm,_tlm.txt
558    o pkg/dic:
559      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
560      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
561        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
562    o verification/tutorial_global_oce_biogeo:
563      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
564        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
565        update output_adm,_oadm,_tlm.txt
566    o eesupp/src:
567      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
568        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
569    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
570      LSR (following Hutchings et al. 2004)
571      - introduce zetaZ as a global variable (requires adjustments in
572        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
573        in seaice_calc_viscosities.F
574      - new flag SEAICEuseStrImpCpl (default off)
575      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
576        momentum equations
577      - JFNK-solver (preconditioner) adjusted to allow using this method
578        (where it does not have any positive effect)
579    o pkg/seaice
580      - add overlap for restrictive additive Schwartz method also to LSR, but
581        turn it off by default (because it only seems to work for non-cubed
582        sphere/llc topologies)
583    o pkg/autodiff
584      - add extra exchanges in addummy_in_steppging also for mnc output
585    o pkg/seaice:
586      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
587        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
588    o pkg/obcs:
589      - add option to specify domain-connected piece Id along OB though files
590        (for now, only used to diagnose PhiVel; default =1 -> global correction)
591      - modify obcs_diag_balance.F to process each connected-part separately;
592        exclude OB where Id = 0 but keep the full divergence there (-> constant
593        Psi along this portion of OB and all inflow derived from grad(Phi))
594      - add example of OB-conect files in verification/so_box_biogeo/input.
595    o pkg/diagnostics:
596      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
597      a) use non zero matrix element across OB and solve for Phi 1 grid point
598         outside OB (i.e, where tracer OBCS are applied).
599      b) global imbalance of inFlow/outFlow across OB: instead of modifying
600         velocity across OB, spread it uniformly along the OB in the RHS.
601    
602    checkpoint65g (2014/11/19)
603    o pkg/diagnostcis:
604      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
605    o pkg/my82,pp81,kl10:
606      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
607        field diffKr as background diffusivity to set minimum diffusivity value.
608    o pkg/seaice:
609      - add new parameter SEAICEuseEVPrev (for revisited EVP by
610        Bouillon et al 2013)
611      - add SEAICE_evpAlpha/Beta to namelist
612      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
613        involve trivial re-ordering of divisions/multiplications that should not
614        have any effects, but ... they do change the results of lab_sea.hb87 so
615        that only 2 digits of agreement remain, in line with the general
616        instability/fragility of the evp-code. For now, I do not care and just
617        update the verification experiment
618    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
619      - remove xx_genarr2d_numsmooth etc
620      - use xx_genarr2d_preproc etc instead
621      - carry out smooth_correl2D at initialization stage rather than during
622        time stepping.
623      - get smoothOpNb from xx_gentim2d_preproc
624    o global_oce_cs32 :
625      - add test of generic ecco capabilities.
626    o pkg/exf/exf_getsurfacefluxes.F :
627      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
628    o pkg/ctrl,ecco :
629      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
630        is defined.
631    o pkg/seaice: add diagnostics for Delta (deformation parameter)
632    o model/src:
633      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
634        diffusivity (background) is specified but ignored.
635    o verification:
636      - in testreport, convert hostname to lower case for default output dir name
637    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
638    o pkg/dic: add modifications from Hajoon:
639      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
640      - light attenuation: add self-shading effect by climatological Chlorophyll
641        (read from file).
642    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
643        compiles when SEAICE_ALLOW_DYNAMICS is undefined
644    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
645        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
646        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
647        approach where CPP_OPTIONS.h includes an omnipotent
648        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
649    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
650        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
651    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
652        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
653        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
654    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
655      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
656      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
657      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
658      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
659    o pkg/ctrl,ecco,exf :
660      - remove variables associated with NON-generic costs,
661        unless ECCO_CTRL_DEPRECATED is defined.
662      - remove NON-generic NON-obcs controls,
663        unless ECCO_CTRL_DEPRECATED is defined.
664    o pkg/ctrl : added ctrl_local_params.h
665    o pkg/ecco : added ecco_local_params.h
666    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
667        experiments, which will progressively be removed once the
668        experiments are revised to use only generic controls/costs.
669    
670    checkpoint65f (2014/10/13)
671    o pkg/ctrl, ecco, seaice : minor changes in headers
672    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
673        cost function and control capabilities added since checkpoint65c.
674    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
675    o pkg/ecco: increase modularity and improve logic
676      - ecco_toolbox.F (new) : basic operations that are often used,
677        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
678        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
679      - cost_gencal.F (new) : determine filnames and records.
680      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
681      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
682        and exploit the above functions leading to more compact code.
683      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
684      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
685        using_ers, using_gfo, using_mdt is now only defined within gencost)
686    o pkg/ecco: extend generic cost capabilities
687      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
688        capabilities via gencost_preproc (+ _c,_i,_r related params),
689        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
690        gencost_outputlevel arguments to cost_generic
691      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
692        and active_read, making room for gencost_preproc to take effect.
693        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
694      - pkg/ecco/cost_generic.F :
695        compute and store misfit maks*(model-data) in localdif that is
696        then used in cost and for output, output misfit if outlev.GT.0
697      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
698        rather gencost_barfile for deciding whether to write barfile
699      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
700      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
701        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
702      - pkg/ecco/ecco_summary.F : report gencost variables
703      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
704    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
705    o pkg/ecco: internal re-organization
706      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
707        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
708        mv relevant variables definition from ecco_cost.h to ecco.h,
709        make sure gencost routines only include ecco.h)
710      - throughout : add missing CCP switches, rm unused variables,
711        and rm un-necessary CPP switches
712      - throughout gencost routines : replace modelstartdate with
713        gencost_startdate when needed
714      - cost_bp_read.F : use arguments, instead of common blocs
715        so that it can be used also by (new) cost_gencost_bpv4.F
716      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
717      - ecco_phys.F : compute etanFull
718      - ecco_readparms.F : rename using_topex as using_tpj, add
719        bpv4-grace to gencost list, initialize added parameters
720      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
721    
722    checkpoint65e (2014/09/28)
723    o pkg/obcs:
724      - replaced the just-added CPP options with run-time variables
725        (see pkg/obcs/OBCS_PARAMS.h for details)
726    o pkg/obcs:
727      - add additional CPP options for sponge boundary layers
728        (see pkg/obcs/OBCS_OPTIONS.h for details)
729    o pkg/atm_phys:
730      - implement simple (obliquity only, assuming circular planet orbit)
731        seasonal cycle for incoming insolation ; used when run-time parameter
732        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
733    o pkg/exf, pkg/ecco, pkg/ctrl:
734      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
735      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
736      - implement gentim2d for xx_tauu, xx_tauv
737    o pkg/ctrl, pkg/ecco :
738      - fix and complement the generic controls implementation
739    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
740        pkg/shelfice/shelfice_thermodynamics.F,
741        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
742        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
743      - add weight in CTRL_GET_GEN calls
744    o pkg/ctrl :
745      - ctrl_get_gen.F : add weight as input parameter, and apply
746        it directly rather than using smooth_correl2Dw (to be retired).
747      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
748    o pkg/ctrl :
749      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
750        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
751      - re-activate ctrl_summary (call in ctrl_init.F)
752    o pkg/ctrl/ctrl_cost_gen.F :
753      - fix CCP brackets, remove un-necessary myiter, mytime
754    o pkg/ecco, pkg/ctrl :
755      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
756      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
757      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
758      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
759    
760    checkpoint65d (2014/09/15)
761    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
762      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
763        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
764    o pkg/ctrl/ctrl_map_ini_genarr.F :
765      - remove compilation failure
766      - replace hard coded example
767      - use ctrl_map_ini_gen2D, 3D
768    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
769      - on/off switch based upon xx_genarr2d_weight,3d
770    o src/packages_init_variables.F :
771      - regroup pkg/estimation calls
772      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
773        (moved to ctrl_init_variables)
774    o cost/cost_init_varia.F :
775      - remove ecco_cost_init_varia
776        (moved to ecco_init_varia)
777    o ctrl/ctrl_init_variables.F :
778      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
779      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
780    o ctrl/ctrl_map_ini.F :
781      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
782        (moved to ctrl_init_variables)
783    o ctrl/ctrl_map_ini_ecco.F :
784      - remove ECCO_PHYS (mv to ecco_init_varia)
785      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
786    o ecco/ecco_ad_diff.list :
787      - add ecco_init_varia.f
788    o ecco/ecco_init_varia.F
789      - new routine
790    o pkg/streamice:
791      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
792        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
793      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
794    o pkg/generic_advdiff:
795      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
796    o pkg/exf:
797      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
798         xxg_precip capability
799      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
800    o pkg/ctrl:
801      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
802    o model/src/load_fields_driver.F :
803      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
804        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
805    o OpenAD verification experiments:
806      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
807        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
808        for now, only in pkgs used in OpenAD verification experiments.
809      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
810        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
811        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
812        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
813    o OpenAD verification tests:
814      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
815      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
816        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
817      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
818        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
819    o model/src & generic_advdiff:
820      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
821        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
822        dynamics requires valid tracer forcing only over tile interior but, for
823        some diagnostics, may need to extend it over 1 point in tile halo region.
824      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
825        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
826        setting in temp/salt/ptracer_integrate.F
827    o pkg/dic:
828      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
829        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
830        in gchem_forcing_sep.F
831    o pkg/autodiff & obcs:
832      - add storage of current OB values for U & V (was already done for T & S).
833    
834    checkpoint65c (2014/08/30)
835    o pkg/dic:
836      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
837        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
838        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
839    o verification:
840      - new experiment testing OBCS and DIC pkgs, using params & output from
841        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
842        passage: take OBCS from the last year of a 2 yrs simulation and initial
843        conditions from t=1.yr while keeping the same forcing.
844    o model/src:
845      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
846        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
847    o pkg/diagnostics (Stats-Diags):
848      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
849        a) refine region where stats are computed, excluding where arrhFac=0 ;
850        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
851        c) extend regional stats over the region edges (for U or V pt location).
852    o pkg/gchem:
853      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
854        pkg/dic is currently changing/updating ptracers values beyond the OB).
855    o verification (hs94):
856      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
857        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
858        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
859        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
860    o pkg/ptracers:
861      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
862        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
863      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
864        with AB-2 code (so that it get tested).
865    o model/src:
866      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
867        with AB-2 code (previously only available with AB-3 code).
868        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
869        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
870        there, by calling CYCLE_AB_TRACER).
871    o pkg/generic_advdiff:
872      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
873        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
874        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
875        S/R temp/salt/ptracers_integrate.F
876    o model/src & pkg/ptracers:
877      - remove common block variables gT,gS (in DYNVARS.h), except when
878         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
879      - remove common block variable gPtr.
880    o model/src & pkgs:
881      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
882         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
883         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
884         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
885      + change accordingly all calling S/R.
886      - use local temperature/salinity/ptracer tendency array (without bi,bj)
887        in S/R temp/salt/ptracers_integrate.F
888    o pkg/seaice:
889      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
890        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
891      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
892        in seaice_lsr
893      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
894        in s/r seaice_lsr_calc_coeffs
895    o pkg/mdsio:
896      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
897        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
898        too long (e.g., > MAX_LEN_FNAM/2 )
899    
900    checkpoint65b (2014/08/12)
901    o pkg/matrix:
902      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
903    o model/src:
904      - fix initialisation of geothermalFile; compile geothermal-flux code in
905        natl_box verification experiment.
906    o model/src & pkg/down_slope:
907      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
908      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
909        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
910        results at machine truncation level: update output of experiments
911        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
912    o pkg/diagnostics (Stats-Diags):
913      - do not cumulate the full volume when DIAGNOSTICS_FILL is
914        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
915        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
916        times (but Min,Max and StD are still wrong).
917    o model/src:
918      - add geothermal flux forcing: read in ini_forcing.F as time-constant
919        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
920    o model/src:
921      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
922        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
923        arrays are already updated while adjustments (filters, conv.adjustment) are
924        still applied later, in S/R TRACERS_CORRECTION_STEP.
925    o model/src:
926      - store in common bloc array "rhoInSitu" the virtual potential temperature
927        anomaly that is used to compute geopotential: this make the atmos code
928        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
929    o pkg/seaice/seaice_lsr.F
930      - rename integer variable ilcall to ipass (that's what it is called
931        in the residual diagnostics
932      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
933        default) for improved non-linear convergence of the first few steps
934      - adjust a few comments and add new ones to explain some of the store
935        directives
936    o pkg/generic_advdiff (& ptracers):
937      - re-work the code to check for valid advection scheme and for minimum
938        size of overlap (now stored in local common bloc in gad_advscheme.F)
939    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
940      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
941      - add an auxilliary variable "bet" and fix store directives and keys in
942        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
943        less exact gradients in my tests); but there are still
944        recomputation warning (although gradients are sort of OK), when
945        SEAICE_LSR_VECTORIZE is not defined, so this flag and
946        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
947      - update verification experiments lab_sea.
948      - change some comments in S/R seaice_calc_viscosities
949    o model/src:
950      - if staggerTimeStep=T, always apply exchange to velocity field in
951        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
952        (independent of using multi-dim advection or not); no effect on FWD run
953        but affects AD results (at machine truncation level): update output of
954        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
955        and isomip (oad: 12.d).
956    o pkg/generic_advdiff:
957      - stop if doAB_onGtGs is set to FALSE but ignored
958      - refine warning related to stability of tracer time-stepping
959        regarding internal wave dynamics.
960      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
961        on staggerTimeStep & implicitIntGravWave (will now get a warning
962        if potentially unstable).
963    o pkg/kl10:
964      - add new pkg "kl10" for mixing due to internal wave breaking, from
965        http://www.sciencedirect.com/science/article/pii/S1463500310000144
966        (contribution from Jody Klymak), tested in verification experiment
967        verification/internal_wave/input.kl10/
968    o isomip experiment:
969      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
970        (input.htd) and update the output.
971    o cd_code experiments:
972      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
973        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
974        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
975        update the corresponding output.
976    o pkg/seaice:
977      - reduce the number of include files and store directives in
978        S/R seaice_lsr_tridiagu/v
979      - change the order of loops in one case in S/R seaice_lsr_tridiagv
980        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
981        get rid off one store directive (a TAF bug?)
982      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
983        S/R seaice_lsr_tridiagv to change the loop range for consistency
984      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
985      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
986        S/R seaice_lsr_tridiagu/v (requires update of
987        offline_exf_seaice/input.dyn_jfnk)
988    
989    checkpoint65a (2014/07/27)
990    o model/src:
991      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
992        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
993        (topo in p-coords, ice-shelf in z-coords); update output of experiments
994        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
995    o model/src:
996      - collect momentum forcing tendency into local 2-D array (passed as argument
997        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
998        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
999        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1000      - collect T & S forcing tendency into local 2-D array (passed as argument to
1001        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1002        affects results at machine truncation level (e.g., ocean: if using
1003        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1004        correction due to vertical advection).
1005      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1006        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1007        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1008        obcs_ctrl (ad & fwd grd @ 12 & 7).
1009    o pkg/ptracers & diagnostics:
1010      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1011        title (to avoid some unexpected truncation); sort out ptracers diags units.
1012      - collect ptracer forcing tendency into local 2-D array (passed as argument
1013        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1014    
1015    checkpoint65 (2014/07/18)
1016    o pkg/fizhi:
1017      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1018        affects results at machine truncation level. Update output of experiments
1019        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1020    o pkg/seaice: more clean up
1021      - rename TAF common block tapes to be more consistent and remove
1022        unnecessary duplicates
1023      - add store directives to remove more recomputations, but use smaller
1024        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1025        The idea behind this flag is to reduce the memory footprint when the
1026        adjoint of the LSR is not required. As of now, defining the flag
1027        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1028        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1029        For experiment offline_exf_seaice, this means on a linux box with gfortran
1030        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1031        this experiment):
1032        > size mitgcmuv_ad
1033        text    data        bss     dec        hex
1034        5100659 1216  220458952  225560827  d71c8fb
1035        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1036        but only a moderate increase of 36% for global_ocean.cs32x15:
1037        text    data        bss     dec        hex
1038        6695027 1648 1014578664 1021275339 3cdf6ccb
1039        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1040      - note: there are still recomputations in global_ocean.cs32x15 and
1041        offline_exf_seaice and the gradient agreement changes (gets a
1042        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1043      - in general, the AD gradients still are wrong
1044    o OpenAD
1045      - clean up code_oad/ directories somewhat by moving files
1046        dontCompile, dontTransform, keepOriginal to OAD_support/
1047    o model/src:
1048      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1049        (not currently tested): add dissipation terms before NLFS rescaling of
1050        tendencies (previously done after).
1051    o pkg/diagnostics:
1052      - write stats-diags in ascii file with more digits (same as in monitor).
1053    o pkg/down_slope:
1054      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1055        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1056    o model/src:
1057      - new file "apply_forcing.F" containing all the code previously in
1058        external_forcing.F, but with new argument list: pass, as new argument,
1059        the current level tendency array to update (instead of a direct update
1060        of the common bloc array). Change the corresponding calls.
1061      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1062        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1063    o pkg/seaice/seaice_lsr, a little bit of clean up
1064      - rearrange some code blocks, so that now all calculations for
1065        setting up the right-hand-sides done within one single block
1066        (I find that easier to read and understand)
1067      - rearrange freedrift-code to reduce the number of ifdefs
1068      - adjust some indentations and comments
1069    
1070    checkpoint64z (2014/07/10)
1071    o model/src and several pkgs:
1072      - change argument list of all S/R called from external_forcing.F and
1073        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1074        to pass, as argument, the current level tendency array to update
1075        (instead of a direct update of the common bloc array).
1076      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1077      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1078    o pkg/seaice/seaice_lsr.F
1079      - always initialize local arrays in seaice_lsr_tridiagu/v
1080      - add more local tapes to seaice_lsr_tridiagu/v
1081      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1082        keep it in bi/bj loop; this seems to be essential
1083      - gradients are still wrong but only by 4-7 orders of magnitude
1084        instead of 15 orders of magnitude, lab_sea improves a little
1085    o pkg/seaice
1086      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1087        generates unnecessary code in seaice_lsr_ad
1088      - add more store directives in seaice_lsr to avoid unnecessary code
1089        in seaice_lsr_ad
1090      - exclude some residual computations in seaice_lsr when
1091        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1092        in seaice_lsr_ad
1093      - add more storing, a new tape (model/src/the_main_loop.F) and
1094        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1095        and klockey should be checked by a specialist)
1096      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1097        and update lab_sea after previous changes in pkg/seaice below
1098    o pkg/autodiff:
1099      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1100        viscFacInAd : run time parameters allowing for adjoint switches
1101        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1102    o pkg/ecco:
1103      - introduce cost_gencost_boxmean.F that computes a box mean
1104        temperature (for use in adjoint sensitivity studies).
1105    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1106    o pkg/mom_common/mom_calc_visc.F:
1107      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1108    o pkg/seaice/seaice_summary.F:
1109      - statement for SEAICEadjMODE now in autodiff_readparms.F
1110    o pkg/seaice:
1111      - remove some store directives and add new ones in an effort to get
1112        finally rid off the recomputation warnings. This is successful
1113        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1114        defined (i.e. no extensive recomputation warnings left), but there
1115        are still too many recomputations on the solver iteration level
1116      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1117      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1118        SEAICE_SIZE.h
1119      - add a store directive in S/R seaice_calc_viscosities
1120    o pkg/seaice (ITD code):
1121      - fix definition of Hlimit for multi-threaded case
1122      - use double precision arithmetic to compute Hlimit: this affects results;
1123        update output of experiment seaice_itd.
1124    o replace content of verification/seaice_itd
1125      - instead of a 1D column use the configuration of offline_exf_seaice
1126        to test the ice thickness distribution code with ridging
1127      - this is a first shot at this experiment
1128      - change of some defaults of ridging parameters SEAICEhStar (from
1129        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1130        and lot of new comments.
1131    
1132    checkpoint64y (2014/06/20)
1133    o pkg/seaice/seaice_reg_ridge.F:
1134      - modify the regularization of very small volumes of ice; only check
1135        total volume HEFF, and do not apply correction to individual ice
1136        classes because that leads to funny patterns in the heat and fw-fluxes
1137        into the ocean. Adjust seaice_itd/results/output.txt
1138      - replace nITD by SEAICE_multDim in loop-ranges
1139    o pkg/exf:
1140      - add code to process the case field period = -12. with UV interpolation.
1141      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1142        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1143    o verification/global_with_exf:
1144      - switch all fields period to -12. (was previously untested) in input/data.exf
1145        (but keep secondary test ".yearly" unchanged); update the reference output.
1146    o pkg/cal:
1147      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1148    o pkg/exf:
1149      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1150        to replace logical switch "exf_verbose"
1151      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1152    o pkg/sbo:
1153      - update from Katherine Quinn: evaluate mass directly from density and SSH
1154        (budget using Finite Volume method) instead of from bottom pressure.
1155      - allow testreport to collect few selected SBO output ; tested in exp.
1156        global_ocean.90x40x15 (after updating the results, to include SBO output).
1157      - fix some multi-threading issues (in output part).
1158    o model/src & most packages:
1159      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1160      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1161        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1162        "data.{pkg}" exist ; and leave the S/R (return) just after.
1163      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1164        + call LAND_READPARMS from packages_readparms.F
1165    o pkg/seaice:
1166      - remove code that resets useThSice in S/R seaice_readparms and
1167        replace it by a warning in S/R seaice_check
1168      - remove parameter MULTDIM, replace with nITD and runtime
1169        parameter SEAICE_multDim (still hard-wired to nITD if
1170        SEAICE_ITD is defined)
1171    
1172    checkpoint64x (2014/05/24)
1173    o verification/lab_sea:
1174      - update adjoint and TLM output following changes to pkg/salt_plume
1175      - un-do the update after putting back local recip_Cp in few places.
1176    o pkg/salt_plume: modifications by An Nguyen:
1177      - add capability to do brine rejection (salt-plume) as function of
1178        volume+tracers (instead of only salinity tracer).
1179      - conserve volume by exchanging volume from each kLev to above to
1180        accommodate in-coming brine volume
1181      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1182      - switch KPP surf buoyancy due to brine forcing to 3-d
1183        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1184      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1185      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1186        in East/West Arctic.
1187    o pkg/sbo:
1188      - incorporate modifications from Katherine Quinn to enable the use of sbo
1189        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1190        output for future testreport verification (unfinished).
1191    o pkg/atm_phys:
1192      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1193        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1194        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1195    o pkg/seaice
1196      seaice_calc_ice_strength.F: modify expression to avoid divisions
1197        (affects truncation)
1198      seaice_do_ridging.F: clean up the insectarium
1199      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1200      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1201      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1202      - add some debugging information and error messages (warnings)
1203    o model/src: modifications relatd to atmosphere p*:
1204      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1205      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1206        of vertical profile tRef in geopotential background and anomaly.
1207      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1208        and pkg/atm_phys.
1209      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1210        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1211    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1212    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1213        not used right now, but can be used in BGC packages to fix conservation.
1214    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1215        other packages too.
1216    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1217        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1218    o model/src:
1219      - since we have several heat capacity (even in model/src), define "recip_Cp"
1220        as local variable (no longer in common block) to avoid any confusion.
1221      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1222    o pkg/exf:
1223      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1224        air density as function of air Temp, Humidity and atm pressure.
1225    
1226    checkpoint64w (2014/05/02)
1227    o verification:
1228      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1229        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1230        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1231        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1232        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1233    o model/src: for atmosphere in p* coords:
1234      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1235      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1236        but not yet activated.
1237    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1238      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1239      - this changes the results (but not for any verification experiment, because
1240        none tests this), but avoids having an extra field in the restart files
1241    o pkg/seaice: remove global variable TICE (not needed)
1242      - replace by TICES or local variable where necessary (cost_seaice_test,
1243        seaice_diagnostics_state)
1244      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1245      - use specific read/write routines for reading and writing individual leves
1246        of a multilevel field
1247    o pkg/ctrl & model/inc:
1248      - move additional anomaly fields of control vars (related to options:
1249         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1250        from DYNVARS.h into new header file: CTRL_FIELDS.h
1251    o pkg/seaice: some small modifications to the ridging code
1252      - make fw2ObyRidge a global variable and add the freshwater flux to
1253        seaice_growth
1254      - pass actual thickness from seaice_prepare_ridging, so that it is
1255        computed only in one place and compute it in the same way as in
1256        seaice_growth
1257      - initialise more fields in seaice_do_ridging that where cause floating
1258        point exceptions over land
1259  o pkg/seaice: preparations for ridging code and first real ridging code  o pkg/seaice: preparations for ridging code and first real ridging code
1260    - move most of "PART 1" of S/R seaice_growth into a new and separate    - move most of "PART 1" of S/R seaice_growth into a new and separate
1261      S/R seaice_reg_ridge that will both regularize the state variable after      S/R seaice_reg_ridge that will both regularize the state variable after
1262      advection call the actual ridging routine;      advection call the actual ridging routine;
1263    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,    - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1264      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;      d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1265    - remove ridging code from seaice_advdiff    - remove ridging code from seaice_advdiff
1266    - clean up remaining part 1 of seaice_growth in an attempt to make it    - clean up remaining part 1 of seaice_growth in an attempt to make it
1267      more readable (this is probably subjective)      more readable (this is probably subjective)
1268    - call seaice_itd_redist once in the initialisation phase to have the initial    - call seaice_itd_redist once in the initialisation phase to have the initial
1269      conditions in the correct category      conditions in the correct category

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