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revision 1.76 by jmc, Fri Jul 12 14:52:08 2002 UTC revision 1.971 by jmc, Sun Apr 6 02:05:05 2008 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 change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
8      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
9    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
10      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
11    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
12     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
13       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
14    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
15       scheme to use for vorticty-term ;
16     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
17       (with default selectVortScheme, return to original discretisation)
18     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
19    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
20    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
21      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
22      also fix diagnostics VISCAHW & VISCA4W.
23    
24    checkpoint59o
25    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
26    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
27      move a few statemens out the main loop into separate loops
28    o pkg/shelfice:
29      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
30        (kg/m^2/s), does not break tests, because in verification/isomip,
31        rhoConstFresh=rhoConst (by accident)
32      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
33      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
34        new file model/src/seawater.F, so that they are available for all pkgs.
35      - convert potential temperature into in-situ temperature. This changes the
36        isomip tests => update tests
37    o add a flag writePickupAtEnd (default=true) to be able to suppress
38      writing a pickup at the last timestep
39    o tools/mpack-1.6 :
40      - disable automake (not working) and autoconf (not needed).
41      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
42        also cleaner with much less compilation warnings.
43    o pkg/profiles:
44      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
45      (for "less than 32 characters name" compiler requirement)
46    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
47      conditions that have a different sampling frequency than S/T/U/V obcs
48    o pkg/diagnostics (stats-diags):
49      - fix global Min/Max in case 1 processor get only empty tiles
50    o genmake2: replace (4 times)
51         make genmake_tc_1.o >> genmake_warnings 2>&1
52      with
53         COMM="$CC $CFLAGS -c genmake_tc_1.c"
54         echo $COMM >> genmake_warnings
55         $COMM >> genmake_warnings 2>&1
56      to make genmake2 always see the value of CC as specified in the optfile.
57    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
58      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
59      - modify verification advect_cs test to test SOM-advection on CS-grid.
60    o pkg/ctrl:
61      - Rewrite of ctrl_map_ini_ecco.F,
62        introducing a generic routine (ctrl_map_ini_gen.F).
63      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
64    
65    checkpoint59n
66    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
67      number in dedicate array "hdiag":
68      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
69        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
70      - many small changes (integer format) for large number of diagnostics
71      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
72        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
73    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
74      usingSphericalGrid, this allows to define the rotated grid coordinates
75      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
76      geographical coordinates according to the inverse of the rotation defined
77      by the Euler angles, so that Coriolis parameter and online-interpolation by
78      exf works with the geographical coordinates on XC/YC/XG/YG.
79      Naturally, this feature does not work with all packages, so some
80      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
81      profiles), because there the coordinates are assumed to be regular
82      spherical grid coordinates.
83    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
84      - introduce isopycnal diffusion coefficient control.
85    o tools/adjoint_options:
86      - additional control vector components.
87    o pkg/mnc: have mnc create marginally meaning full coordinate variables
88      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
89    o pkg/mypackage:
90      - add example of read/write pickup for state-var ;
91      - add entry points to the main code for state-vars diags & write-pickup.
92    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
93      transitions for useExfYearlyFields
94      - add new subroutine that determines the file to read from for
95        use*YearlyFields = .TRUE. and .FALSE.
96      - add a verification experiment to global_with_exf that tests
97        useExfYearlyFields with USE_EXF_INTERPOLATION defined
98    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
99      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
100      subroutines (which could be generated from a template, because they are
101      almost identical), for now they are included in obcs_prescribe_read.F for
102      simplicity
103    o pkg/exf:
104      - add a little more diagnostic to exf_interp_read (in analogy to
105        mds_read_field, can be turned off with debugLevel < debugLevA=1)
106      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
107        ugly but fast by unrolling short inner loops, inserting a unroll=8
108        directive in routine lagran, and splitting a loop and making do while the
109        outermost loop (the latter requires the intoduction of index arrays)
110    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
111    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
112      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
113    o verification/seaice_obcs: updated for restart test and latest options
114    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
115      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
116      for now this is only available for the C-grid code and also within
117      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
118    
119    checkpoint59m
120    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
121      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
122    o gad_som : fix flux output (& diagnostics) to have same units as other  
123      advection scheme fluxes (was previously multiplied by deltaT).  
124    o added verification/seaice_obcs both to test seaice open boundaries
125      and to provide an example matlab scrpt for generating them
126    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
127    o pkg/salt_plume: clean up salt_plume_frac.F to
128      remove redundancy in PlumeMethod 1 and 4
129    o pkg/kpp: added saltplume diagnostics
130    o pkg/obcs and pkg/seaice:
131      - do not set uice and vice to zero when OB*icefile are unspecified
132      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
133      - moved seaice tracer obcs after call to seaice_growth
134    o pkg/salt_plume: added various options for salt plume depth
135      criterion and for vertical distribution of the salt
136    
137    checkpoint59l
138    o pkg/ptracers: new version of ptracers pickup:
139      read meta file and write only fields which are needed to restart.
140      ( same logic as main pickup file ; also using pickupStrictlyMatch )
141    o pkg/seaice:
142      - add timescale for melting due to warm mixed layer as a means of
143        setting SEAICE_availHeatFrac more conveniently
144      - add a CPP-flag/runtime parameter check for flooding algorithm
145      - reformulated availHeat in seaice_growth.F to be independent of AREA
146    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
147      unit changes
148    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
149    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
150      SX vector computer.
151    o pkg/seaice:
152      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
153        seaice forcing fields can now be read only through pkg/exf
154      - removed some unused halos
155    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
156    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
157      or U/VICE from U/VWIND before computing U/VSTRESS
158    
159    checkpoint59k
160    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
161      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
162    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
163      all experiments pass when compile with un-initialised var. checking option.
164    o added pkg/salt_plume
165    o script to test restart (for now, in MITgcm_contrib/jmc_script)
166    o pkg/seaice: new read/write pickup version.
167      read meta file and write only fields which are needed to restart.
168      ( same logic as main pickup file ; also using pickupStrictlyMatch )
169    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
170    o lab_sea.hb87: modify the domain & update output.hb87.txt :
171      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
172      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
173      process. Fixed here by closing the domain at the Northern boundary.
174    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
175    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
176      a set of consecutive levels in/from a 3-D array.
177    o pkg/ptracers:
178      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
179      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
180    
181    checkpoint59j
182    o in pkgs: dic, obcs, offline, rbcs:
183      standard way to compute coeff. for time interpolation between 2 time reccords
184      which retains full precision (& make results less dependent on compiler).
185      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
186    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
187      packages instead of reading ice cover and wind speed separately
188    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
189     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
190      to allow to compile customized code before the update)
191    o cleaning-up:
192      - fix CPP instruction syntax in pkg/obcs
193      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
194        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
195      - fix some threads issue in IO parts.
196    o pkg/dic:
197      - add tons of "_d 0" (--> much better testreports !)
198       and then update outputs of tutorial_global_oce_biogeo
199    o pkg/mom_fluxform:
200      add a special version of momentum advection intended to conserve momentum
201      next to a bathymetry step or a coastline edge. (default = off = #undef)
202    o new read/write pickup version:
203      - for now, only implemented for main (mdsio) pickup file.
204      - write out only what is needed to restart; merge pickup_nh , pickup_ph
205        and main pickup together.
206      - read meta file; read only what is needed to restart; stop if a field
207        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
208        if it make sense (even if the restart is not perfect).
209      - if no meta file, assume that pickup to read corresponds exactly to
210        a pickup that would currently be written.
211      - read pickup written in the old format (until checkpoint59i) if it
212        recognizes an old meta file (no field-list).
213      - add a meta file in exp. which starts from a pickup: 2 cases:
214        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
215         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
216        b) a meta file describing the content of the associated pickup file
217         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
218    o pkg/mdsio & pkg/rw:
219      - new routine to read a meta file ; new set of routine to read
220        Multiple-fields file (with meta file).
221    o added open boundary conditions capability for seaice
222        HSNOW, HSALT, UICE, and VICE
223    
224    checkpoint59i
225    o adjoint:
226      * fix multiDimAdvection adjoint
227        (partial recomputation problem by TAF for fVerT(:,:,kDown)
228        and comlev1 size definition (maxpass vs. max. number of tracers)
229      * verification/global_ocean.90x45x15 adjoint now tests
230        NLFS and multiDimAdvection using DST3 (=30)
231      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
232    o pkg/kpp: add "_d 0" to real constant (if missing);
233      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
234      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
235    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
236      for internal parameters related to restart process (formerly from PARAMS.h)
237      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
238    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
239      as argument. (only atm2d & obcs write_pickup have not yet been updated)
240    o pkg/monitor:
241      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
242      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
243      - account for deep Atmosphere factor and density factor (anelastic)
244    o added open boundary conditions capability for seaice HEFF and AREA
245    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
246      thermodynamics
247      - requires a little reorganization, which affects the testreport results
248        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
249        so that now the conservative form is tested
250      - add a few comments
251    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
252    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
253    o add new diagnostics to seaice: advective, diffusive fluxes (only for
254      multidim-advection, for scheme 2 they are not filled) and transports,
255      thermodynamic growth rates
256    o change units of EmPmR (inside the code, + within coupling interface)
257      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
258      Affects results @ truncation level (cg2d match) and update output of
259       experiments: lab_sea(6), global_ocean.90x40x15(10),
260      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
261      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
262      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
263      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
264    
265    checkpoint59h
266    o pkg/exf:
267      - improve vectorization by moving if-statement out of loops in
268        exf_mapfields, exf_radiation
269      - exf_bulkformulae.F: introduce 2D fields and vectorize code
270    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
271    o testreport:
272      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
273        monitor & update offline_exf_seaice exp. output.
274      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
275    o pkg/seaice:
276      - bug fix in the evp solver: boundary conditions were affected be
277        masking of zMax/zMin (changes results)
278      - minor bug fix in boundary conditions in seaice_calc_strainrates
279        (changes results for no_slip)
280      - seaice_lsr.F: make interpolation of eta dependent on boundaries
281      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
282      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
283        stress formulation and no-slip boundary conditions
284    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
285      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
286    o pkg/seaice: a first HSALT time stepping equation has been checked in
287    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
288      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
289      without requiring DO-IF statements
290    o pkg/thsice:
291      use continuous power-law function for partition of energy between lateral
292      melting/freezing and thinning/thickening ; old code using step function
293      still available with #undef THSICE_FRACEN_POWERLAW
294      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
295    o testreport: change AD testing : check against results/output_adm.txt
296      using same scripts as for forward test.
297    
298    checkpoint59g
299    o adjoint testing: in preparation for changing testreport:
300      - output format: cost and grad written on separated lines
301      - ad output results in directory "results" (instead of "results_ad")
302    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
303    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
304    o pkg/ecco: allow user defined cost function contributions
305    o testreport:
306      Allow to choose (per experiment) the list of tested output variables
307       and the main variable (used to issue a pass/FAIL ) ;
308      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
309      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
310      Also modify printing of summary:
311       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
312       b) echo the list of tested variables in the individual summary.txt of
313          each experiment.
314    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
315      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
316      (but still depend on the tile decompostion of the domain).
317    o pkg/seaice: change a discretization detail to make the B-grid code
318      "more symmetric". This change is likely to remove all "ridges/leads" that
319      where quasi-aligned with the grid in B-grid solutions. It may also be
320      the solution to the stress coupling issues with the B-grid.
321    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
322      remove .cvsignore from input dir. (since testreport no longer run here).
323    o pkg/thsice:
324     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
325     - fix reshaping of sea-ice just after advection:
326       melt all the ice only if ice-volume is too small.
327     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
328       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
329     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
330    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
331      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
332    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
333      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
334      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
335      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
336      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
337      -> update output.txt
338    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
339     this affects truncation error: -> update output.txt of exp:
340      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
341      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
342    
343    checkpoint59f
344    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
345    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
346      a bounded range (in forward mode)
347    o pkg/ecco, ctrl, autodiff and mom_common:
348     internal parameter controls, completements of implementations
349    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
350    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
351      (not seem any difference in testing results).
352    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
353       at face corners.
354    o pkg/generic_advdiff:
355     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
356      loop range indices for computing vertical advection tendency
357      and do the calculation in the interior only (no overlap) ;
358      for now, only implemented for SOM advection (to save CPU time).
359     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
360    o exch2 adjoint
361      First set of changes:
362      - add exch2 hand-written adjoint templates
363      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
364        This will require cleanup in pkg/autodiff/*.F
365        (changed routines currently kept separate in verif. code/)
366      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
367        that used to hide exch2 or cubed-sphere specific code
368        (commented via 'cph-exch2')
369    o pkg/seaice
370      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
371    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
372       output of global_ocean.cs32x15.thsice .
373    
374    checkpoint59e
375    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
376      for B-grid vector (not yet tested) and C-grid vector (<- only used
377      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
378    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
379      (#ifdef ALLOW_SALT_PLUME)
380    o gather_2d/scatter_2d: removed halo regions
381    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
382      scheme and the corresponding test case (under front_relax dir). For now,
383      only available with Skew-flux form and not yet tested in realistic set-up.
384      adjoint: store directives updated, but gradient checks deteriorated,
385      so maybe GM/Redi adjoint is now broken.
386    o seaice adjoint
387      * add AREA, HEFF, HSNOW as control variable
388        (should not change lab_sea results)
389      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
390    o pkg/seaice:
391      * added computation of saltFlux in seaice_growth;
392        For time being, sea ice salinity is assumed constant
393        contribution of snow flooding to freshening of sea ice is neglected.
394        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
395        defaults to 0.0 in order to maintain backward compatibility.
396        Typical values for SEAICE_salinity are 4 to 10 g/kg.
397      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
398      * added SEAICE_availHeatFrac, which specifies fraction of surface level
399        heat content used to melt or grow ice
400      * commented out cap of HICE: it helps keep ice thinner
401      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
402      * applied OBCS T/S mask to HEFFM sea ice mask
403    
404    checkpoint59d
405    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
406     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
407     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
408    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
409     and change default value of parameter "GM_Small_Number";
410     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
411       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
412       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
413    o pkg/ecco: cost function when applying pkg/smooth to controls
414    o pkg/ctrl: add forcingPrecond run time parameter
415    o pkg/seaice:
416     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
417     - fix bug in metric terms of u-equation in LSR solver (implicit part),
418       changes verification/lab_sea
419     - rearrange implicit part of u-equation in LSR solver to make it easier to
420       read, understand, and debug. This causes changes at the truncation level.
421     - fix (serious) bug in the boundary conditions (sign error in the implicit
422       part) of the LSR solver. Changes all LSR results.
423     - fixed problem with HSNOW initialization to avoid thick snow when AREA
424       is initilized with small values - does not change lab_sea results.
425     - added HsnowFile initialization capability
426    o pkg/smooth: addition to model/src and pkg/ctrl so allow
427     initialization of pkg/smooth and application to control vector
428    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
429    o dependencies: pkg/profiles requires pkg/cal
430    o pkg/profiles:
431     - added option ALLOW_PROFILES_GENERICGRID
432         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
433         that interpolation information (grid points and coefficients) is provided
434         within the netcdf input files.
435         -> sample matlab scripts can be found in MITgcm_contrib/gael
436         that allow you to prepare netcdf input files.
437     - also modified: cleaner include statements, cleaner error print statements,
438       cleaner stops when error, and more tests of the netcdf input files consistency.
439    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
440    o pkg/seaice:
441     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
442       requires a new routine: seaice_diagnostics_fill.F
443     - make sure that seaice does not move if not forced (pressure replacement
444       method, Hibler and Ip, 1995), changes results
445     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
446     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
447       It is turned off by default (=-1.), because it changes the results.
448     - make it possible to read AREA from a file, too.
449    
450    checkpoint59c
451    o add S/R and diagnostics for oceanic mixed-layer depth
452    o move GMRedi call after all vertical mixing schemes (including KPP)
453    o pkg/thsice:
454     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
455      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
456    o pkg/obcs:
457     - bug fix for balance code
458    o pkg/seaice:
459      - allow values of SEAICE_elasticParm > 1
460      - add new parameter SEAICE_evpTauRelax as an alternative
461        to SEAICE_elasticParm
462      - make lsr boundary conditions free slip (by default), changes result
463      - add code for no slip boundary conditions for lsr
464      - set minimum of zeta to zero (and not 4e8) (changes results)
465      - add a cap on AREA after advecting AREA if seaice_growth is not called
466    o change calculation of Visbeck K:
467      - no longer depend on tapering scheme; instead, compute slope (limited
468        by GM_maxSlope). this is equivalent to what was comuted before with
469        clipping or linear tappering.
470      - fix vertical averaging (wrong by 1/2 level)
471      - leave the old version (but will not be maintained) within
472        #ifdef OLD_VISBECK_CALC / #endif
473      - update output of exp. ideal_2D_oce
474    o change error catch in calc_r_star to improve vectorization
475    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
476      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
477    o adjoint:
478      Re-organized adjoint checkpointing according to Matt Mazloff
479      (but with modifs/completions/cleanups)
480      Storing is now bundled into large arrays to optimized I/O
481      (and second step in cleanup of the_main_loop)
482    
483    checkpoint59b
484    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
485      - export/import (between ocean & coupler) fields needed for ocean DIC.
486    o pkg/seaice:
487      - get rid of three more exchanges seaice_calc_viscosities (required
488        different loop boundaries in seaice_lsr and seaice_ocean_stress)
489      - bug fix in seaice_ocean_stress (update of lab_sea required)
490      - reduce loop boundaries to necessary minimum also in seaice_evp
491      - go back to the old way of computing deltaC/Z as the adjoint likes that
492        better
493    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
494      passive tracer to an Age Tracer) + update output.txt
495    o pkg/exf:
496      - implement A-grid / C-grid selection for wind-stress input files.
497      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
498      for now, in exf_bulk_largeyeager04.F only :
499      - change implementation for case where windspeed + 2. components wind-stress
500        are read-in. AND use rhoConstFresh to convert evap.
501    o pkg/seaice:
502      - use correct EXCH_UV for wind-forcing (on A-grid).
503      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
504        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
505    o pkg/exf:
506      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
507      EXF_INTERPOLATION:
508      - merge global_with_exf/code version of exf_interp_read.F
509        to the main code ;
510      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
511        reading the file ; Important: This options needs to be defined to recover
512        previous code.
513        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
514      - no longer loose real*8 precision along the way when using exf_iprec=64.
515    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
516      - change discretisation of evp-solver in order to avoid another exchange
517        (changes lab_sea) and clean up a little
518      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
519        help the adjoint (this also changes the results slightly)
520      - add a few "_d 0" where they had been missing in seaice_evp.F
521      - cleaning up: remove unused seaice_calc_rhs.F
522    o pkg/exf: some cleaning-up:
523      - change various "constants" into runtime parameters
524      - cleaned-up Large&Yeager04 routine which should eventually
525        replace exf_bulkformulae.F (changed names of S/R and CPP)
526        and merged various ALLOW_ATM_WIND options
527     only used with thsice pkg (in thsice_get_exf.F):
528      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
529        which are used when useStabilityFct_overIce=TRUE (= the default)
530      - change default values of ice & snow emissivity and scale downward LW
531        by ice & snow emissivity.
532    o pkg/thsice:
533     fix few little problems, in thsice_calc_thickn.F:
534      - growth vertically (and not laterally) if iceFrac == iceMaskMax
535      - melt only laterally if hIce < hThinIce (as the comments say)
536      and in thsice_extend.F:
537      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
538      - start to form ice as soon as the minimum ice-volume is reachable.
539     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
540      and cpl_aim+ocn
541    o pkg/kpp
542     - move computation of surface related input fields to KPP into a new
543       subroutine kpp_forcing_surf.F
544     - remove wrong (within bi,bj loops) EXCH calls.
545     - little cleaning (add argument myThid in last position, cvs header ...)
546     - for now, fix conservation problem by exchanging KPPviscAz (may not
547       be the best fix)
548    o pkg/seaice
549     - check for inconsistent evp parameter/cpp-flag combination
550     - remove leftover errIO flat for obsolete name list error handling
551    o OpenAD
552     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
553    
554    checkpoint59a
555    o pkg/seaice: some parameter clarifications and a little bit of clean up
556    o pkg/thsice: rename run-time parameters:
557       himin       -> hIceMin
558       himin0      -> hThinIce
559       hihig       -> hThickIce
560       i0          -> i0swFrac
561       transCoef   -> bMeltCoef
562       frac_energy -> fracMelting
563      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
564       with default values (for now) that do not change the results.
565      remove old version of thsice vars advection in pkg/seaice.
566    o in FFIELDS.h:
567      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
568      - make pLoad & sIceLoad always available (but still only used if
569         ATMOSPHERIC_LOADING is #define).
570    o pkg/kpp: replaced _KPP_RL with _RL
571    o bug fixes for vertical diffusivity computations when both KPP and
572        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
573        are no longer updating the vertical diffusivity array
574        (passed as argument) but are (re-) setting those arrays.
575    o pkg/seaice: fix bug in evp solver, while doing that
576      - change (improve?) discretization of stress computations for both
577        cgrid-lsr and evp solver
578      - add a new routine to compute strain rates
579      - the above changes lab_sea results
580      - add no slip conditions for evp solver (off by default), lsr-version
581        may follow
582      - fix exchange for shear at Z-points (does not change lab_sea)
583      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
584        (to force the user to pick a time step since there is not "safe" way
585        of choosing it)
586      - add principal stress diagnostics
587      - rearrange fields for evp a little to avoid having to call a: too many
588        exchanges and b: exchanges for stress trensor components which we do
589        not have.
590      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
591        of evp, complete rewrite for lsr case (latter is does not yet work
592        in all cases)
593    o pkg/kpp: add code to have mixing in shelf ice caverns
594      - add myThid to all kpp routines (long overdue)
595    
596    checkpoint59
597    o pkg/exf:
598      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
599        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
600      - move exf header files from lower_case.h to UPPER_CASE.h ;
601        add missing cvs Header & Name
602      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
603      - add namelist param. selectStressGridPosition, exf_monFreq
604      - retire many _CLIM routines, and remove data.exf_clim
605        + params moved to data.exf
606        + climsst, climsss now handled by exf_set_gen, i.e.
607          climss?period=0 refers to constant field,
608          climss?period=-12 to monthly forcing
609      - split up namelists in data.exf
610    o pkg/seaice:
611      - remove seaice_exch and seaice_exch_uv
612      - remove superfluous exchange of theta
613      - add myThid to seaice_budget_ocean/ice
614      - add new interface for atmospheric wind forcing (C-grid only)
615        + new routine
616        + two new field (taux, tauy for stress over ice)
617        + removed one global field (DAIRN) for C-grid case only
618    o pkg/thsise
619      - 2nd set of modifs for thsice adjoint in conjunction with exf
620    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
621    
622    checkpoint58y_post
623    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
624      vertical diffusivity, similar to that in MOM4; turned on using
625      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
626      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
627    o Added capability for 3D specification of background vertical diffusion
628      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
629      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
630      "data" file that contains the 3D vertical diffusivity coefficients.
631    o ice dynamics (pkg/seaice) with thsice thermodynamics:
632      - add code within pkg thsice to advect & diffuse sea-ice fields
633      similar to (and will replace) what has been added in  seaice_advdiff.F,
634      but: - conserving Mass, Heat & Salt.
635           - better when using non-linear advection scheme (not yet fully tested)
636           - can also be used in atmospheric set-up (for now, only the diffusion).
637    
638    checkpoint58x_post
639    o IO option for global-file compact format:
640      - add options when generating topology (utils/exch2/matlab-topology-generator)
641      - add I/O capability (pkg/mdsio).
642      - adapt utils/matlab/rdmds.m to read this format.
643      for now long-line format not yet supported by pkg/mdsio (& exch2).
644    o shelfice: add a few diagnostics
645    
646    checkpoint58w_post
647    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
648      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
649      (and replace horiVertRatio in NH code).
650      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
651                         and tutorial_plume_on_slope (sensitive to truncation)
652    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
653      directly to drive seaice model (C-grid only)
654    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
655     - reintroduce computation of wind from stress,
656     - compute tau (in exf_bulkformulae.F) from windstress averaged to
657       mass points to avoid tau = 0
658     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
659    o rdmnc.m: make it work with "global" files created with gluemnc
660    o rdmnc.m : some improvements in dealing with singleton dimension
661      (tested on all testreport mnc output files).
662    o genmake2: disable pkg/profiles if netcdf test fails.
663    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
664    o move call to cal_readparms up to make calendar parameters/variable available
665      to all packages
666    
667    checkpoint58v_post
668    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
669      useDynP_inEos_Zc tested.
670    o pkg/exf: changes to properly interpolate/mask/scale initial fields
671    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
672      and portions thereof.  See read_cs.txt for description and examples.
673    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
674      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
675      following the great-circle arc between those 2 points.
676    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
677      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
678    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
679     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
680     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
681     - still needs work (not working with some options ; efficiency to improve)
682       and serious testing.
683     - use this scheme for temperature & salinity in 2 advection test exp.:
684       advect_xy & advect_xz, respectively.
685    
686    checkpoint58u_post
687    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
688    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
689    o testreport: add option "-skipdir" to skip some test.
690    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
691      momentum calculation.
692    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
693    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
694      remove checkpoint.F and the_correction_step.F (no longer used);
695      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
696    o add option (linFSConserveTr) to correct for tracer source/sink due to
697      Linear Free surface
698    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
699    o pkg/thsice: fix reading mnc-pickups
700    
701    checkpoint58t_post
702    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
703    o pkg/mdsio:
704     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
705       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
706       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
707     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
708     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
709       either MDS_READ_FIELD or MDS_WRITE_FIELD )
710     - new S/R (to replace MDSWRITEMETA), which allows to write more
711       informations (variable names, time ...) to meta files.
712     - modify rdmds.m to give back the meta file content.
713    o pkg/diagnostics: change vertical interpolation to be safer, and more
714       flexible (define p-levels to interpolate to in data.diagnostics);
715      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
716       diagnostic pointer.
717    o pkg/seaice: more cleaning up of seaice_growth, added many comments
718    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
719    o fix multi-category seaice:
720     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
721       SEAICE_MULTICATEGORY
722     - fix short wave heat flux
723    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
724       and allow to use EVP solver. Change forward lab_sea: test both EVP
725       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
726    o Initial check-in of lab_sea adjoint
727      (very similar to natl_box_adjoint/code_seaice)
728      * used C-grid and EVP solver
729      * used KPP, GM/Redi
730      * uses inAdExact=.TRUE.
731      * gradient checks fail for both ADM and TLM
732        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
733        f.d. gradients actually seem more problematic than ADM, TLM gradients;
734        issue is related to forward mismatch between g77 an ifort
735    o pkg/seaice: overhaul of thermodynamics
736     - growth.F and groatb.F are replaced by new routine seaice_growth.F
737     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
738     - move a few global fields out of SEAICE.h into seaice_growth.F and
739       make them 2D (FICE/QNETO/ ...)
740     - remove FO (it is the same as QNETO)
741     - introduce a few local fields to avoid modifying external fields such
742       as atemp, etc.
743    
744    checkpoint58s_post
745    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
746      changed exf_set_gen.F so that
747        genperiod=0 means input file is one time-constant field and
748        genperiod=-12 means input file contains 12 monthly means
749    o CG2D: use pre-computed solver main-diagonal (stored in common block);
750      this affects truncation error ; generate new output file for exp. which
751      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
752        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
753        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
754        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
755        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
756        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
757    o start implementation of deep-atmosphere and anelastic formulation
758    o verification: remove 2nd copy of input files and use script "prepare_run"
759      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
760    o mom_common/vecinv/fluxform: fix a few initialisation isssues
761    o profiles: fix for multithreaded case
762    
763    o diagnostics: rename few diags:
764      s/'PRESSURE'/'RCENTER '/g
765      s/'TICE    '/'oceFreez'/g
766      s/'TAUX    '/'oceTAUX '/g
767      s/'TAUY    '/'oceTAUY '/g
768      s/'SWFLUX  '/'oceQsw  '/g
769      s/DIFx/DFxE/g
770      s/DIFy/DFyE/g
771      and add few ocean-forcing diagnostics:
772      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
773    o modifications to pkg/seaice/growth.F and budget.F, which change results of
774      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
775      as actual snow thickness.  It now refers everywhere to effective snow
776      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
777    
778    checkpoint58r_post
779    o modifications to pkg/seaice/growth.F, which change results of
780      lab_sea experiment: fixes pertain to melting snow over open water, to
781      masking EVAP under sea ice, and to using the correct AREA variable for
782      computations of EVAP, PRECIP, HSNOW, and GHEFF
783    o add ability to read bathy, salt, and theta using MNC (off by def)
784    o add flooding algorithm and advection of HSNOW for pkg/seaice;
785      both are turned off by default and do no change any results
786    o seaice advection with pkg/thsice: a step toward the use of non-linear
787      advection scheme, but #ifdef or commented out for now (requires more EXCH).
788    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
789      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
790      in natl_box (affects results @ truncation level: update output.txt)
791    o multi-threading and IO:
792      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
793      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
794        (needed to work with SingleCpuIO): tested in all verif. exp.
795    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
796      affects the results (but none of the verification test uses this scheme).
797    o Adding some pkg/diagnostics capability to pkg/seaice
798      (will certainly be subject to changes)
799    o ctrl: adding new control variables:
800      lwflux, lwdown, evap, snowprecip, apressure, runoff
801    
802    checkpoint58q_post
803    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
804      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
805      high_res_cube configuration by 4% on Columbia.
806    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
807      add (in global_with_exf/code) a version of EXF_INTERP_READ without
808      dynamical allocation (seems to work in multi-threaded).
809    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
810      single CPU io) so that TAF does not have to see EESUPPORT.h
811    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
812    
813    checkpoint58p_post
814    o obcs: stop if obcs is used with useCDscheme = .true.
815    o shelfice:
816     - fix a sign error so that no slip at shelfice interface works
817     - remove stop for combination non-hydrostatic code and shelfice. That does
818       not mean, that the results are correct, but at least they are numerically
819       stable
820    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
821    o added adjoint exch routined for all exch*3d* routines
822      and updated flow directives
823    
824    checkpoint58o_post
825    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
826      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
827    o change controling S/R for writing pickup file (new S/R do_write_pickup)
828      and clean-up reading/writing of pickup files.
829    o fix local version of read/write pickup (NH part) in rotating_tank/code
830    o simplify EXCH interface:
831     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
832     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
833    o added the regrid package
834    o shelfice:
835     - add a simple boundary layer scheme to reduce noise
836     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
837    
838    checkpoint58n_post
839    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
840       local variable (not in common block).
841    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
842      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
843      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
844        to work with SingleCpuIO.
845    o add "_d 0" to real constant of pkg/cfc subroutines ;
846       update exp. cfc_exemple & tutorial_cfc_offline output files.
847    o multi-threading and IO:
848      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
849        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
850      - barrier before and after reading.
851      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
852      - avoid using MDS_WRITELOCAL for LAND pkg output.
853      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
854        common-block variables ; Allows multi-threading with master-thread IO.
855    o change default MAX_NO_THREADS from 32 to 4 ;
856      and stop cleanly when MAX_NO_THREADS is too small.
857    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
858    
859    checkpoint58m_post
860    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
861       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
862    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
863       keep global_ocean.90x40x15 (for AD testing) with former secondary test
864       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
865    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
866        add MITgcm_tutorials (= code + all the tutorials)
867    o ecco, option to compute cost for total ssh (mean+anom)
868    o consistent with addition of ptracer and ssh in pkg/profiles
869    o profiles: adding ptracer and ssh
870    o testreport: change multi-test output-file name
871      (from output.txt.{name} to output.{name}.txt)
872    o profiles: now ok for mutli-tiles case
873    o seaice: add 4 parameters for different advection schemes for area,
874      (effective) seaice thickness, enthalphy, and snow height. Their default
875      is the standard parameter SEAICEadvScheme
876    o calc_gw:
877     - add cosFacU in zonal viscous flux (harmonic.visc.).
878     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
879       of tutorial_plume_on_slope.
880    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
881    o calc_gw: true flux-form, account for horizontal grid spacing.
882      update rotating_tank results, but not plume_on_slope (affected at
883      truncation level, 11 digits).
884    
885    checkpoint58l_post
886    o calc_gw:
887     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
888     - remove side-drag for now (need to fix it); update plume_on_slope results.
889     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
890    o commit code to make SST/SSS weights spatially variable
891      (based on either variable in-situ or variable initial T/S weights)
892    o pkg/ecco:
893      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
894        now based on horizontally varying weights wthetaLev, wsaltLev
895      * cost_averagesflags now returns year indices in addition to day, month
896      * sflux balance is performed on annual basis
897        (sflxumm, sfluxmm2, bal_sfluxmm)
898      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
899        including separate counting and multipliers
900    o pkg/rbcs
901      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
902    
903    checkpoint58k_post
904    o testreport:
905     - always build in dir. "build" (if not there, mkdir build instead of building
906       & running in input)
907     - run in dir run (if it exists), in build otherwise.
908     - call prepare_run (if input/prepare_run exists)
909     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
910    o pkg/exf modifications to interpolation and rotation routines for more
911       reasonable treatment of North Pole singularity: for tracers North Pole
912       value is set to northernmost zonal-mean value, for zonal velocity it is
913       set to zero, and for meridional velocity it is set to northernmost value.
914    o pkg/exf/exf_check_range.F
915     - add tile index to diagnostics and move stop statement to the very
916       end of the routine.
917    o pkg/diagnostics: (diagnostics_main_init.F)
918      define title of isomorphic variables according to the current config.
919    o pkg/thsice with pkg/seaice dynamics:
920    - fix domain of computation (interior only, required for exf) and do exchanges
921    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
922    o towards a standard way of dealing with multi-threading in MONITOR
923      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
924    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
925       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
926    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
927    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
928    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
929       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
930    o tracer advection:
931     - clean-up and simplify calc_common_factors.F
932     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
933       advection subroutine (but still not used within DST advection S/R)
934    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
935    
936    checkpoint58j_post
937    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
938      from file (collects calls previously in FORWARD_STEP)
939    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
940    o adjoint store dir. adjusted accordingly
941    o genmake2
942      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
943    
944    checkpoint58i_post
945    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
946      on wind stress (SEAICEstressFactor defaults to 1.)
947    o Total number of Timers is finite (<=40): comment out 2 non-essential one
948      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
949    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
950      on CS-grid: no longer loosing mass.
951    o exf & curvilinear-grid: no longer modify longitude xC & xG.
952    o pkg/ggl90: fix sloppy output and fix a bug
953    o pkg/seaice: added SEAICEuseEVPpickup parameter
954      - Set to false in order to start EVP solver with
955        non-EVP pickup files when using SEAICEuseEVP
956      - fix sign error in diffusion in seaice_calc_rhs
957    
958    checkpoint58h_post
959    * Modifications for bottom topography control
960      o replace hFacC by _hFacC at various places
961      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
962      o add non-self-adjoint cg2d_nsa
963      o update autodiff support routines
964      o re-initialise hfac after ctrl_depth_ini
965      o works for 5x5 box, doesnt work for global_ocean.90x40x15
966    * Adding verification for 5x5 box (4-layer) bottom topography control
967    
968    checkpoint58g_post
969    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
970       used for mean seasonal cycle, mean diurnal cycle); add an example
971       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
972    o pkg/ggl90:
973      - add parameter (minimum surface kinetic energy)
974      - fix bug (avoiding division by zero)
975    o couple pkg/thsice to pkg/seaice:
976      - modify advection in seaice to accomodate new scalar fields to be advected
977      - only muliDimAdection scheme work with seaice/thsice
978      - mapping of thsice-variables to seaice-variables, back and forth
979      - does not break the verification experiments, but does not give the
980        desired results either
981    o pkg/seaice
982      - make (default) second order advection a bit less confusing?
983    
984    checkpoint58f_post
985    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
986      to pkg/seaice):
987      - new routines thsice_map_exf and thsice_get_exf provide the interface
988      - add an additional formal parameter to thsice_solve4temp
989    o pkg/exf:
990      - add new fields wspeed, snowprecip (to be able to couple to thsice)
991      - correct Stefan-Boltzmann constant
992      - new parameter for longwave surface emittance
993      - separate some stuff from exf_bulkformulae into new routines  
994        exf_radiation, exf_wind
995      - add new parameters and constants: longwave emissivity for ocean, ice
996        and snow, evaporation parameters over ice
997      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
998        either wind from stress or stress from wind
999    o pkg/thSIce:
1000    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
1001    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
1002       and THSICE_CALC_THICKN
1003    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
1004    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
1005      to make debugging easier.
1006    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
1007    o pkg/bulk_force:
1008      - clean-up comments and parameters ;
1009      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
1010    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
1011      generate new output for test-experiment: aim.5l_cs.thSI
1012    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
1013      testreport accordingly
1014    
1015    checkpoint58e_post
1016    o SEAICE_CGRID adjoint done
1017    o R_STAR adjoint implemented.
1018      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
1019      * need to sort out init. of h0facc, etc.
1020    o Make pkg/profile fully independent of ecco,cost, etc. stuff
1021      to be able to use it in pure forward.
1022    
1023    checkpoint58d_post
1024    o upgrade simple test-experiment to tutorial example:
1025     step.1: duplicate the experiment and (step.2) will remove the old copy.
1026      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
1027      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
1028      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
1029      tutorial_global_oce_biogeo    <- copy of dic_example
1030      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
1031      tutorial_plume_on_slope       <- copy of plume_on_slope
1032      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
1033      tutorial_global_oce_optim     <- empty for now (David ?)
1034      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
1035     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
1036    o correct a sign problem in cost_scat.F
1037    o obcs and ptracers: fix boundary conditions for advections schemes
1038      with larger stencil
1039    o thsice adjoint: start
1040    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
1041      completeness
1042    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
1043      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
1044    o ptracers adjoint:
1045      * avoid extensive recomputatations
1046      * fix missing re-init. of gptr (missed by TAF)
1047    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
1048      me to turn off the excessive output to STDOUT that this package produces
1049    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
1050      and add those terms in Vector-Invariant formulation.
1051    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
1052      if the control period (xx_hfluxperiod etc) is 0
1053    o in profiles pkg, clean routines and fix details
1054    o in ecco pkg, reading ssh data:
1055      fix problem in case the model does not start at iter0=0
1056    o fix mnc-pickup/restart for ptracers
1057    o new package prifiles:
1058      code to compute profile-based cost by Gael Forget
1059      (modifs in ecco, ctrl, autodiff)
1060    o Benign bug fix in initialization (spotted by M. Mazloff) of
1061      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
1062    
1063    checkpoint58c_post
1064    o adjoint: finish NLFS adjoint and provide reference output in
1065      verification/global_ocean.90x40x15/results_ad_nlfs
1066    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
1067      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
1068      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
1069      with SEAICE_CGRID defined.
1070    o move calendarDumps from "data" to "data.cal" and clean-up the code
1071      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
1072    o add useEXF & useCAL flags (for now, set in hard-coded way)
1073    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
1074      (were missing in NH mode, and wrong in quasihydrostatic mode).
1075      waiting for Chris updated version of calc_gw to add those CALLs.
1076    o fix bug in quasihydrostatic S/R ;
1077      add a test for this option: global_ocean.90x40x15.qshyd
1078    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
1079      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
1080    o add on/off flag useOffLine for package OFFLINE
1081    o seaice:
1082      - modify advection so that it works also on the C-grid
1083      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
1084        problem in multi-tile runs with C-grid
1085      - add flags for clipping ice velocities and/or masking solver forcing
1086      - fix drag (ocean on ice) formulation and a bug that caused noise in the
1087        C-grid solver
1088      - added a few comments to seaice_diffusion.F
1089      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
1090        are now exclusive)
1091      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
1092        required re-ordering the code a little:
1093       + make DAIRN global variable (defined in SEAICE)
1094       + move computation of the viscosities eta and zeta into a new separate
1095         routine (because I need to recompute them in seaice_ocean_stress.F)
1096    
1097    checkpoint58b_post
1098    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
1099      update output.txt of exp. aim.5l_cs.thSI
1100    o various mnc cleanups and improvements:
1101      + shrink lookup tables by factor of ~4
1102      + better error reporting when running out of lookup space
1103      + able to handle longer path/file names (up to 500 chars)
1104    o adjoint:
1105      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
1106      - TBD: "hidden" mom_vecinv recomp. in dynamics
1107    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
1108     (allow to differentiate between forcing components using new integer flags:
1109      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
1110     and add new flag to put Dissipation tendency out of Adams-Bashforth.
1111    o ecco
1112      - enable trend removal from SSH anomaly obs.
1113    o adjoint
1114      - a fix for PmEpR when #undef EXACT_CONSERV
1115      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
1116      - try to fix "hidden" recomp. in forward_step for NLFS
1117        (NLFS seems broken sometimes after I checked it in)
1118    o seaice:
1119     - add c-grid version of the dynamic solver:
1120       + three new routines that are the c-grid substitute lsr, dynsolver
1121         and ostres
1122       + put a few fields that were local to dynsolver into global common
1123         blocks, so that I can move the computation of stresses etc into
1124         seaice_lsr (saves coding but may break the adjoint).
1125     - replace more hardwired parameters by runtime parameters
1126     - add ice masks that mask the rhs of the implicit solvers where there
1127       is no ice (commented out in seaice_dynsolver, because i am not sure
1128       if this works properly), eventually this should replace the clipping
1129       of ice velocities in seaice_dynsolver to +/-40cm/s.
1130    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
1131      include it only where its needed
1132    o move balancing of fluxes before the call of external_forcing_surf
1133    o seaice:
1134      - correct units of turning angles (now they are really in degrees)
1135      - move computation of GWATX/Y out of main routine into dynsolver
1136      - initialize GWATX/Y in seaice_init
1137    o Apply mask on Fresh-Water flux (needed for SSH forcing).
1138      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
1139    o seaice: add runtime flags for turning angles (default to zero)
1140    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
1141      and trend from exf forcing and ctrl control adjustments
1142    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
1143      (since checkpoint57x_post)
1144    o change the default rotation period to 86164.s = the Earth rotation
1145    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
1146      and based on a reference stratification. Tested within hs94.cs-32x32x5.
1147    o seaice advection: add code for choosing between the default (2nd order
1148      central differences) and multiDim advection schemes provided by
1149      pkg/generic_advdiff
1150    o seaice:
1151      - removed all references to SEAICE_GRID.h fields from
1152        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
1153        (cubed-sphere configuration will change a little)
1154      - grid computations in seaice_init are obsolete now.
1155      - cleaned up code a little so that is easier to read (hopefully).
1156      - added new (better?) discretizations of default advection and diffusion
1157        (turn on with SEAICEuseFluxForm)
1158      - replace 1 in 3d global fields by kSurface in growth.F
1159      
1160    checkpoint58a_post
1161    o seaice:
1162      - bug fix in advect.F
1163    o shelfice:
1164      - separate shelfice load anomaly from pload (breaks with time
1165        dependent forcing), => introduce constant field shelficeLoadAnomaly.
1166        Its default is 0., but it may be computed more cleverly from (unknown)
1167        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
1168        done offline. A good approximation of the pressure load anomaly is
1169        necessary to avoid large initial adjustment processes underneath
1170        deep-reaching shelfice.
1171      - small fix in ISOMIP shelfice_thermodynamics
1172      - add more sophisticated thermodynamics of Hellmer (1989), this is
1173        now the default
1174      - give a few constants more intuitive names
1175    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
1176      if bulk formulae are used in long integration (especially EmPmR). Turn
1177      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
1178      if balancePrintMean, the imbalance that is substracted is printed to
1179      STDOUT.
1180    o fix bug (typo) in obcs_apply_eta.F
1181    o add a new package shelfice which enables us to model the circulation
1182      underneath shelf-ice with draughts of hundreds of meters.
1183     - works
1184     - to do: + include improved thermodynamics
1185              + check whether kSurfC (from model/inc/SURFACE.h) can be used
1186                instead of new field kTopC
1187              + can we use topoFile, Ro_surf and existing code in ini_depth.F
1188                instead of new field R_shelfIce and new code in ini_depth.F
1189                and ini_mask_etc.F?
1190              + adjust vertical mixing schemes?
1191    o seaice pkg:
1192     - add a cpp-flag to include a simple formula for a salinity dependent
1193       freezing point of sea water at the surface
1194     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
1195       meridional stresses are now different (and hopefully correct)
1196    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
1197       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
1198       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
1199    o pkg/diagnostics: add options and parameters for regional-statistics
1200       diagnostics ; define regions by reading a region-mask from a file
1201       (might add other options later)
1202    o pkg/bulk_force:
1203     - add option and parameters to use AIM surface-flux formulae.
1204     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
1205       others forcing fields (defined in PARM05, parameter file "data") are loaded
1206       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
1207     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
1208     - use the right EXCH call for uwind,vwind (to work on CS-grid).
1209     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
1210       and parameters (note: calcWindStress replaces .NOT.readwindstress).
1211     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
1212    
1213    checkpoint58
1214    o add "--embed-source" option to genmake2 which, when the supporting
1215      tools can be compiled (as determined by genmake2) will turn on the
1216      embed_files package which then embeds the entire MITgcm source code
1217      (*.[fFhc] + Makefile) used for the build within the executable
1218      - requested by CNH but off by default
1219      - adds a paltry <9MB to the mitgcmuv executable in most cases
1220      - only writes the output when useEMBEDSRC in eedata is true
1221    o clean up 3-dim. relaxation codes:
1222      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
1223      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
1224      * Thanks to Tom Haine for testing!
1225    
1226    checkpoint57z_post
1227    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
1228      affects output (@ truncation level) of exp. plume_on_slope ; updated.
1229    o fix the pickup behavior for obcs in combination with ptracers
1230    o fix a bug in ptracers_external_fields_load
1231    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
1232      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
1233    o transfered surface NH pressure to eta field (if exactConserv).
1234    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
1235         and update lab_sea output.txt file.
1236    o completing 3-dim. relaxation code: additional term
1237         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
1238      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
1239      * At compile time, in "EXF_OPTIONS.h" set
1240          #define  ALLOW_CLIMTEMP_RELAXATION
1241          #define  ALLOW_CLIMSALT_RELAXATION
1242      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
1243          tauThetaClimRelax3Dim = 15552000.0,
1244          tauSaltClimRelax3Dim  = 15552000.0,
1245      * 3 cases:
1246          1) Use a constant-in-time 3-dim. field
1247          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
1248          3) Real-time relax. to time-evolving prescribed field
1249    o Adding Laplacian-type smoothness constraint on
1250      initial and boundary (forcing) controls (ic, bc)
1251      * enable at compile-time via
1252        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
1253      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
1254      * Absolute scale somewhat unclear so far
1255      * no area weighting was included since no other cost term does so far
1256    
1257    checkpoint57y_post
1258    First step for a NLFS adjoint
1259    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
1260    o new init. routines for calc_r_star, calc_surf_dr
1261    o still need to deal with ini_masks_etc
1262    o testreport seemed happy
1263    checkpoint57y_pre
1264    
1265    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
1266    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
1267    o add new offset feature to offline pkg (plus minor cleanup)
1268    o cfc fixes for final year of integration
1269    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
1270      be in GCHEM_OPTIONS).
1271    
1272    checkpoint57x_post
1273    o fix testreport Pb in multiple test experiment.
1274    o cleanup our namelist syntax in verification:
1275      - make it more F95 standards compliant (some work still needed)
1276      - allows the vast majority of our tests to work with gfortran
1277    o Non-Hydrostatic:
1278     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
1279     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
1280    o Allow to apply AB on T,S rather than on AB(gT,gS):
1281     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
1282     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
1283       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
1284     - need a "clever" read_pickup to restart from the other AB formulation
1285    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
1286    o remove some unused variables (reduces number of compiler warnings)
1287    o adjoint
1288      * Disable useVariableViscosity for adjoint for time being
1289        (there are a number of extensive recomputations)
1290      * Initialize certain variables needed for adjoint
1291    
1292    checkpoint57w_post
1293    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
1294                 fix the singleCpuIO RS version of MDSWRITEFIELD
1295       and add a WARNING if using globalFiles=T with multi-processors.
1296    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
1297      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
1298    o tracer advection scheme:
1299      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
1300       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
1301       was not very convenient).
1302      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
1303       (further tests needed for the implicit DST & Flux-Limiter schemes).
1304    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
1305      and sRef for convenience, handy, when you want to initialize
1306      ptracers in a large domain with a constant non-zero value. Also,
1307      untangle ptracers_init.F a little.
1308    
1309    checkpoint57v_post
1310    o change dome exp. to use variable viscosity in side-drag terms.
1311    o remove all the files from the cfc_offline test since they are now
1312      incorporated into tutorial_cfc_offline which has been producing
1313      identical results for a few days of testing
1314    o add new parameter: sideDragFactor to enable half-slip-side BC
1315      and change side-drag S/R to use viscosity from mom_calc_visc
1316      (can switch back by setting sideDragFactor=0.); affects results at
1317      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
1318       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
1319    o vorticity & strain are now computed without masking, to account for
1320      no-slip-side BC in variable viscosity calculation ; mask is applied
1321      anyway later on, before computing advection/coriolis terms.
1322    o modify exp4 to test new obcs support for reading from external files
1323      and for passive tracers
1324    o fix behavior of ptracers_monitor when monitor output is written to a
1325      netcdf-file; still not independent of monitor.F (writes in the same
1326      file).
1327    o change default value of tRef (put a uniform, meaningful value for ocean
1328      & atmos) and initialize sRef (was missing, as Martin mentioned).
1329    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
1330      to be proportional to enstrophy dissipation length.  Thus,
1331       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
1332      This is now consistent with Smagorinsky and with the manual.
1333    
1334    checkpoint57u_post
1335    o OBCS and PTRACERS: add open boundary support for passive tracers
1336      - either use homogenous (pseudo) v.Neumann conditions or prescribe
1337        OB-values from file; this is not different from the way theta and salinity
1338        are treated
1339      - however, Orlanski-radiation conditions are not supported, and the model
1340        will stop if you use pTracers and Orlanski at the same time.
1341      - beefed up the rountine obcs_external_fields_load: now only those open
1342        boundary values are overwritten with values from files for which there
1343        are really files, otherwise the OB-fields remain untouched. This makes
1344        it possible to use different OBs at different ends of the domain (as
1345        with EXF)
1346    o reduce number of exch calls in shap_filt (s2).
1347    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
1348      truncation level) 4/5 MLAdjust test results (11&12 digits match).
1349    
1350    checkpoint57t_post
1351    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
1352    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
1353      same truncation, independent of the face number: affects affects several
1354      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
1355    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
1356      note that biharmonic viscosity + no-slip was not tested in any experiment.
1357    o fix bug in non-linear free-surf side-drag ; generate new output for
1358      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
1359    o make mnc honor the writeBinaryPrec flag for most kinds of output
1360    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
1361    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
1362      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
1363    o add brackets in multi-terms sum to get same truncation, independent of
1364      the face number (manage to get exactly same value of gU,gV at the cs-edge)
1365      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
1366    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
1367      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
1368      a maximum grid-scale Reynolds number.  Also, changes all length calculations
1369      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
1370      Suggested values of viscosity parameters found in mom_calc_visc.
1371      Many new viscosity diagnostics available.
1372    
1373    checkpoint57s_post
1374    o Add clearing-house for viscosity calculations, mom_calc_visc and
1375      correct numerous bugs in LeithD and Smagorinsky discretizations.  
1376      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
1377      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
1378      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
1379      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
1380      The Strain-Tension form is now called with useStrainTensonVisc=.true.
1381      ViscAhStrain and viscAhTension are now retired.
1382    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
1383    o In response to JMC's bug report, genmake2 now ignores any soft-links
1384      that it finds in the *current* directory when searching for files.
1385      Soft-links found in any other source directories will still work as
1386      they did before.
1387    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
1388      a C routine to unlimit the stack size
1389    o mnc-ify pkg/aim snapshot vars
1390    o mnc-ify pkg/land as requested by Daniel
1391    o various changes to mnc including:
1392      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
1393      - output can now be grouped so that all files within a group
1394          change the ITER portion of their names in lock-step together
1395      - can now read ("global") PER-FACE (in addition to PER-TILE) files
1396          and works with both EXCH1 and EXCH2 (but needs more testing)
1397      - writing works for all verification test cases w/ g77 on Linux
1398    
1399    checkpoint57r_post
1400    o make MNC variable initialization happen earlier
1401    o add diagnostics for (almost) each term of the momentum Eq.
1402    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
1403    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
1404    o remove MINIMAL_TAVE_OUTPUT option ;
1405      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
1406    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
1407      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
1408    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
1409    o add time-dependent SST, SSS control
1410    o cost terms in ecco/ modularized (new cost_generic.F)
1411    o cost_averages routines are modularized (new cost_averagesgeneric.F)
1412    o new infrastructure for seaice model vs. obs misfits in seaice/
1413      * driver from the_main_loop.F is seaice_cost_driver.F
1414      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
1415      * gradient check in Exp. 6a of natl_box_adjoint/
1416    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
1417      (see README file)
1418    
1419    checkpoint57q_post
1420    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
1421    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
1422      - bug was reported by Jean-Michel and Ian Fenty
1423    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
1424      update exp. cpl_aim+ocn output.
1425    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
1426      Needed for high-res. runs with large global files
1427      to be able to limit tapelev size
1428    o Changed some tests for adjoint:
1429      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
1430      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
1431      * global_ocean.90x40x15/ back to default 3-level checkpointing
1432    o Modifications to enable scripted COMMON to MODULE conversion
1433      * verification/OpenAD/code/ has necessary scripts and description;
1434      * converts, compiles and runs successfully;
1435    
1436    checkpoint57p_post
1437    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
1438    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
1439      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
1440    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
1441    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
1442      (was already the case for dissipation with mom_vecinv,
1443       and also the case for grad.PhiHyd when staggered-timeStep)
1444      This will allow to put dissipation out-off the AB time-stepping.
1445     Unfortunately, affects truncation error. Update output of exp. that "fails"
1446      (cg2d matching number) and leave the others for later: front_relax(10),
1447      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
1448      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
1449    
1450    checkpoint57o_post
1451    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
1452      (2) its ready to be documented during the 20050801 DocFest
1453    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
1454      for ideal_2D_oce and lab_sea on linux_ia32_g77
1455    o set to #undef CTRL_SET_OLD_MAXCVARS_30
1456      in global1x1_tot/code_seaice_adj to access indices 32, 33
1457      (worth another tag)
1458    
1459    checkpoint57n_post
1460    o adding precip control xx_precip 32
1461    o adding swflux control xx_swflux 33
1462    o Replacing 10 forcing penalty cost routines by 1 generic.
1463    o Implementing partitioning in time-mean and variable adjustment
1464      for atmos. state.
1465    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
1466    o in natl_box_adjoint:
1467      * updated exp 1 to 10
1468        (but does not have time-mean vs. variable split results yet)
1469    o updated global1x1/*_seaice_adj/
1470      to incorporate latest changes
1471    o enable useSingleCpuIO for mdsio vector routines
1472      (applies in particular to tapelev I/O)
1473    o removed inefficient K-loop in all active_file*control*.F
1474    
1475    checkpoint57m_post
1476    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
1477      and advect_cs (use EXCH-2 and standard cs-32 grid files).
1478    o pkg/exch2: filling of face-corner halo regions is optional
1479      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
1480    
1481    checkpoint57l_post
1482     tag before updating tutorials (pre-release-2)
1483    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
1484       for output and interpolation of input fields onto model grid)
1485    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
1486       Affects results of exp. rotating_tank ; update output.txt.
1487    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
1488          and taking the square quantity and/or using a fraction-weight field.
1489    o fix aim_diagnostics_init.F mate numbers.
1490    o add mnc output capability to diagnostics/diagstat and update
1491      our cvsignore files for the ACSII output generated
1492    
1493    checkpoint57k_post
1494    o lab_sea now uses diagnostics package and provides a suite of
1495      new EXF diagnostics output.
1496    
1497    checkpoint57j_post
1498    o exf
1499      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
1500        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
1501        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
1502      * extended diagnostics output
1503        - now includes all EXF variables
1504        - hs, hl moved to common block
1505        - separate S/R for diagnostics, called after ctrl vector is added
1506        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
1507        - EXFqnet contains true Qnet (i.e. includes qsw)
1508      * updated verif. lab_sea, global_with_exf
1509      * Rearranging hflux (exf_mapfields -> exf_getforcing)
1510        to ensure that diagnostics sees a true EXFqnet
1511    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
1512    o diagnostics pkg: change pointers so that 1 diagnostic can be used
1513      several times with different frequencies.
1514    o mnc-ify the thsice package as requested by Daniel Enderton
1515      - the monitor--MNC output needs work
1516      - many attributes need to be added (most are currently blank)
1517    o mnc-ify theaim_v23 package as requested by Daniel Enderton
1518      - many attributes need to be added (most are currently blank)
1519    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
1520    o add Sadourny like discretization to the 4th.O vorticity advection scheme
1521    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
1522      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
1523         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
1524    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
1525     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
1526    
1527    checkpoint57i_post
1528    o Diagnostics package was changed: diagnostic allocation is now deactivated
1529      by setting an empty file name in the namelist (used to be by setting 0 frequency)
1530    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
1531      add 1rst Order upwind vertical Shear.
1532    o add a quick fix for A/B checkpointing in OFFLINE mode
1533    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
1534      end-run around the C/Fortran linking horror in eesup/src/timers.F
1535    o added pkg/runclock: allows user to terminate run based on wall clock
1536    o added non-hydrostatic scaling parameter: nh_am2
1537    o pkg/my82: futile attempt to make results compiler-independent by adding
1538      some "_d 0", etc. no effect.
1539    o for mnc output, fill the 'T' coordinate var with myTime and create a
1540      separate 'iter' variable for iteration count
1541    o pkg/diagnostics:
1542      add new capability: output of Global/Regional & per-level statistics ;
1543      tested against monitor output (including land & thSIce) on various exp.
1544    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
1545    
1546    checkpoint57h_done
1547      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
1548      data.diagnostics, data.gchem, data.ptracers) is done.
1549    
1550    o pkg/diagnostics: prepare for Global/Regional statistics.
1551      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
1552    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
1553      and rename it: DIFFERENT_MULTIPLE
1554    
1555    checkpoint57h_post
1556    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
1557    o pkg/diagnostics: change output frequency, now in seconds (instead
1558      of Nb of iterations). This requires to change data.diagnostics.
1559    checkpoint57h_pre
1560    
1561    o in mnc, let the user create the output dir if both mnc_outdir_date
1562      and mnc_outdir_num are false
1563    o add fflags() to pkg/diagnostics which allows one to specify, on a
1564      per-file basis, the file precision [default behavior is unchanged]
1565    o added diagnostics to pkg/kpp, including computation of mixed layer
1566      depth based on a temperature/density criterion
1567    o updated verification/natl_box to test the new pkg/kpp diagnostics
1568    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
1569    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
1570    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
1571      not mnc -- this mistake was found by JMC and is now corrected
1572    
1573    checkpoint57g_post
1574    o add Adams-Bashforth 3rd Order time stepping:
1575      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
1576      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
1577    checkpoint57g_pre
1578    
1579    o make lambda[Theta,Salt]ClimRelax spatially varying
1580      (default remains spatially uniform constant based on tau)
1581    o added new control variables
1582      * init. uVel, vVel, etanN
1583      * lambda[Theta,Salt]ClimRelax
1584    o separate masks used for ctrl_pack/unpack 'from write_grid' output
1585      (suggested by G. Forget)
1586    
1587    checkpoint57f_post
1588    o add parameter "baseTime" = model base time = time at iteration zero
1589      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
1590      account for baseTime shift
1591    o move Coriolis arrays from PARAMS.h to GRID.h
1592    checkpoint57f_pre
1593    
1594    o mnc-ifying the seaice package
1595    o introduced an alternative length scale calculation for use in the limiting
1596      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
1597    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
1598    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
1599      as well as grad(vort3).  Made it compatible with both approximate form
1600      for the cubed sphere and full form of these gradients.  Added flag
1601      useFullLeith to select between approximate and full form.  
1602    o add "d0" in getcon.F to reduce differences between compilers/platforms
1603      update output.txt of exp. fizhi-gridalt-hs
1604    o change port_rand funtion to allow to set the seed.
1605    o fix obscure MNC bug involving conversion between reals and integers
1606      - it caused no problems with certain (eg. gcc, ifc) compilers but the
1607        new version is now more standards-compliant
1608    o adjoint-related modifications
1609      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
1610      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
1611      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
1612    
1613    checkpoint57e_post
1614    o Adding eddy stress controls a la Ferreira et al.
1615    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
1616    
1617    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
1618      update output.txt of exp. fizhi-gridalt-hs
1619    o add more "Z" dimensions and associated coordinate vars to MNC
1620    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
1621    o parameter calendarDumps: when set, approximate months (30-31 days) and years
1622      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
1623      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
1624      months and years.  Requires pkg/cal.
1625    o diagnostics: add pickup functionality
1626      - off by default for backwards compatibility
1627      - current version only uses MDSIO -- MNC will be added
1628    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
1629    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
1630    
1631    checkpoint57d_post
1632    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
1633    o modify verification/ideal_2D_oce so that it tests the creation of mnc
1634      output from the diagnostics package
1635    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
1636    o make genmake2 more portable by using ".$FS" instead of ".f" for more
1637      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
1638    o add coordinate variables to the MNC output from the diagnostics package
1639    o change MNC-flags default value: true when useMNC=TRUE
1640    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
1641      the ability (off by default) to read the grid information using MNC
1642    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
1643    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
1644    o do snap-shot diagnostics at the middle of the time-interval (instead of
1645      at the end).
1646    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
1647      new test for AIM with thSIce + slab-ocean
1648    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
1649    o move state variable diagnostics to the beginning of the time step ;
1650      (note: still needs some work specially for snap-shot diagnostics)
1651      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
1652    
1653    checkpoint57c_post
1654    o Change testing option (-ieee) to get closer agreement between g77 & ifort
1655    o generate new output.txt files on faulks with g77 & the new -ieee option
1656    checkpoint57c_pre
1657    
1658    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
1659      update output.txt of exp. global_ocean.90x40x15
1660    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
1661      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
1662    o add saltFlux(+File) forcing capability with periodicExternalForcing
1663    o allow to use pkg diagnostics for GM-Redi & ThSIce output
1664    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
1665    o improvements for the MNC output from DIAGNOSTICS:
1666      - correct handling of the unlimitied dimension
1667      - all dims now have associated coordinate variables
1668      - variables located at U, V, and Corner ("Z") points are now written
1669        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
1670        *all* data points are output
1671    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
1672    o added pkg/seaice/seaice_monitor.F
1673    o mdsio_readfield.F can now read files visible only to master MPI process.
1674    o pkg/seaice: some test code for ice-modified ocean stress
1675    o exf_getffields interpolation defaults to bilinear for all scalar forcing
1676      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
1677      spurious negative numbers for precipitation and humidity.  Will cause
1678      some small numerical differences for integrations using pkg/exf/exf_interp.F.
1679    o pkg/ctrl/
1680      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
1681        May be enabled via doPackDiag
1682      *  introduce z-scaling of
1683         + gradient (doZscalePack) and
1684         + control (doZscaleUnpack)
1685    o pkg/mdsio/
1686      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
1687      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
1688    
1689    checkpoint57b_post
1690    o simplify options in diagnostics_fill arguments (remove weird combinations)
1691    o fix MNC coordinate variables so that they now contain per-face index
1692      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
1693      general, EXCH2 grids are only aligned to a "local" coordinate system
1694    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
1695    o Implement instantaneous output within pkg diagnostics:
1696      setting a negative frequency in data.diagnostics produces
1697     "snap-shot" output (as opposed to time-average if freq > 0)
1698    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
1699      NOTE: change ptracer diagnostics name: use 2 characters to work with
1700            more than 9 tracers. Add also diagnostics of advect & diffus flux.
1701    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
1702      becomes the coordinate variable for the 'T' dimension
1703    o add CF-style coordinate variables to MNC
1704      - just a first cut:  numbers are meaningless on the cubesphere and
1705        missing along the T axis but otherwise it works!
1706    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
1707    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
1708    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
1709      this is based directly on what the model compute, so that the content of
1710      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
1711    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
1712    o clean up build options files for SunOS, in particular
1713      - remove -traditional from xmakedepend
1714      - change -xarch=v9 to -xarch=native for f77
1715      - restore use of make (not gmake)
1716      - add CC=gcc if using g77
1717    o changes per discussion of AM, JMC, & EH3 today:
1718      - move redundant "grid" variables out of "state" -- in preparation of
1719        creating proper CF-style coordinate variables and in recognition
1720        that any/all grid variables can be easily copied (eg. w/NCO) from
1721        the grid files into any of the other NetCDF files
1722      - *always* output grid variables with MDSIO (this will eventually be
1723        changed)
1724      - output MNC grid file if useMNC is true
1725    o every instance of _END_MASTER() has been found and replaced with
1726      _END_MASTER( myThid ) in order to satisfy certain picky Sun
1727      preprocessors
1728    o re-arrange diagnostics pkg initialisation:
1729     - allow each package to extend the available diagnostics list
1730     - add some checking and fix small problems (multi-threaded, ...)
1731     - new S/R diagnostics_fill (replace fill_diagnostics):
1732       look through the short list of active diag. (instead of the long list)
1733       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
1734    
1735    checkpoint57a_post
1736    o this set of changes restores TAMC compatibility
1737      tested for global_ocean.90x40x15 adjoint on trough
1738      (what a pain)
1739    
1740    checkpoint57a_pre
1741    o some modifs in tools/build_options for sunos
1742    o call ctrl_pack for ctrl at end for optimcycle=0
1743    
1744    checkpoint57
1745    o add horizontal bi-harmonic viscosity for vertical velocity
1746      - new parameter viscA4W (defaults to viscA4)
1747      - affects only non-hydrostatic code
1748      - to be done: no-slip lateral boundary conditions
1749    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
1750    o implement Implicit Vertical advection for pTracers
1751    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
1752      (implemented also for implicit vertical diffusion & advection)
1753    o OBCS: extend application of tracer open boundary conditions
1754      to a strip beyond the boundary of width Olx/Oly
1755    o add call monitor to TAF set of required calls (flow directives)
1756      and include in natl_box_adjoint
1757    o untangle a few ifdefs related to cost, ctrl, autodiff
1758      untangel a few ALLOW_ECCO_OPTIMIZATION
1759    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
1760      (theta2, salt2 in ecco_cost_weights)
1761    
1762    checkpoint56c_post
1763    o OBCS as control variables
1764      - update ctrl_ad_diff.list, obcs_ad_diff.list
1765      - remove balance of obcs controls from default
1766      - fix index bug nobcs in ctrl_init
1767      - fix dummy fields filen in ctrl_pack
1768      - add dummy weights for obcs
1769    o lsopt: comment out fort.94 output
1770    o optim:
1771      - remove unnecessary header files
1772      - adjusted namelists
1773      - add xerbla.F to Makefile
1774    o exf:
1775      - multiple modifications of exf_check_range
1776      - unit change in exf_init_runoff from [m/year] to [m/s]
1777    o mdsio:
1778      - i/o-vector change debugLevel from debLevA to debLevB
1779    
1780    checkpoint56b_post
1781    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
1782      is called from DO_THE_MODEL_IO
1783      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
1784      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
1785      - clean up PTRACERS_WRITE_TIMEAVE a little
1786    o add another verification experiment that tests both the cfc-pkg and
1787      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
1788      reactive tendencies treated inline with regular timestepping
1789    o testreport previously did a lousy job of comparing small numbers, so
1790      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
1791      implemented in the little c-progam tmp_cmpnum.c which is embedded in
1792      testreport.
1793    o ptracers_monitor: bug fix for MPI
1794    
1795    checkpoint56a_post
1796    o GCHEM: finish reorganizating the package
1797      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
1798        (introduces another 3D-array for each passive tracer, but only if
1799        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
1800        gchemTendency is not needed because the timestep is done separately)
1801      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
1802      - GCHEM is now---more or less cleanly---separate from PTRACERS
1803      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
1804        so clear to me how that should be done in a general way.
1805    o CFC: improve formatting of output in CFC_ATMOS
1806    o PTRACERS:
1807      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
1808        that ALL experiments with ptracers enable can be checked. This makes
1809        GCHEM_MONITOR obsolete.
1810      - include a runtime parameter PTRACERS_monitorFreq that defaults to
1811        monitorFreq
1812      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
1813    o add PTRACERS (PTR0[1-5]) to testreport output
1814    o exf_check_range:
1815      * default changed to .TRUE.
1816      * will check values for niter0 if debLevA, every timestep if debLevB
1817      * STOP in exf_check_range if 'out of range'
1818      * range chosen generous to allow for potential extema
1819      TBD: a version with stricter range
1820           permitted range would be runtime parameters
1821    o GMredi:
1822      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
1823      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
1824      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
1825    o GCHEM:
1826      - move call to GCHEM_FORCING_SEP, so that it is now called before
1827        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
1828      - introduced a useGCHEM runtime flag and applied it everywhere.
1829      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
1830        this flag is now only visible within GCHEM-pkg routines.
1831      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
1832        be replaced by a 3D array that is computed before thermodynamics; for
1833        this, the tracer ID iTracer had to be included into the parameter list
1834        of ptracers_forcing
1835      - set up forward_step to call gchem_forcing, that will replace
1836        gchem_forcing_int in ptracers_forcing
1837      - cleaning up
1838    o small cleaning of exch2: remove files that are also in eesupp/src
1839    
1840    checkpoint56
1841    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
1842    o mnc: cleanup "full" files--fixes out-of-memory problem
1843    o ECCO-GODAE
1844      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
1845      * fully merged and updated from SIO code
1846        windstress sign change affects
1847        - exf_inscal_[u/v]stress
1848        - sign of xx_tau[u/v] adjustments
1849        - signs in cost_scat
1850      * ctrl_get_gen: avoid update of tau[u/v] for first few days
1851      * natl_box_adjoint updated and compressed
1852      * 2-level checkpoint switch added
1853        (tested in EXP. 1 of natl_box_adjoint)
1854      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
1855    o SVD
1856      * first complete, non-hacked version for SVD calculations
1857      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
1858        performed via direct access files admtlm_vector.it????
1859        (via ctrl_[un]pack)
1860      * optimcycle is used for ARPACK iteration counter
1861        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
1862      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
1863        and add linear transforms where necessary
1864      * controls are initial/final SST, SSS (can be extended; need to check
1865        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
1866    o mdsio: filename info to both stderr, stdout
1867    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
1868      from sign change
1869    
1870    checkpoint55j_post
1871    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
1872      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1873    o add consistent build directories and .cvsignore files to verification
1874    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
1875    o make all subroutines 30 or less characters in length for certain older
1876      compilers to work (a thorough search only turns up two routines in
1877      pkg/ptracers)
1878    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
1879      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
1880    
1881    checkpoint55i_post
1882    o change arrays for total vertical diffusivity (2.D if explicit,
1883      3.D if implicit) ; each ptracer uses its own background value.
1884    o added mnc/NetCDF output capability to ocn_compon_interf
1885      - added bits to verification/cpl_aim+ocn so that it can run on
1886        ITRDA and other clusters without the mpirun "-wd" option
1887    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
1888      configuration
1889    o give MNC the ability to create additional files rather than
1890      exceeding a specified file size limit "MNC_MAX_FILESIZE"
1891      - the default is just less than 2GB which is a practical limit
1892        on many systems
1893    o Compute the non-local term using either KPP vertical diffusivity (=default)
1894       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
1895    
1896    checkpoint55h_post
1897    o add verification test "vermix"
1898    o remove all the *_ioinc flags and replace with the single global
1899      outputTypesInclusive flag
1900    o allow to set a vertical profile of vertical diffusivity for T & S
1901    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
1902    o useMNC moved from data.mnc to data.pkg
1903    
1904    checkpoint55g_post
1905    o Renaming carbon AD experiments to comply with testreport conventions
1906    o Updating adjoint of Held-Suarez hs94.1x64x5
1907    o Fixing directives for non-ECCO forward_step, after ECCO directives
1908      have been fixed to avoid recomp. of do_oceanic_phys
1909      Works well for global_ocean.90x40x15,
1910      but recomp. issue remains for carbon
1911    o Updating adjoint output for natl_box_adjoint after
1912      pkg/ecco has been modified (see taga c55d_post)
1913    
1914    checkpoint55f_post
1915    o rename to timeave_init_fixed
1916    
1917    checkpoint55e_post
1918    o some delicate re-shuffle of store directives to avoid one
1919      extra call of do_oceanic_physics
1920      affects ecco_the_main_loop.F, do_oceanic_physics.F
1921      checkpoint_lev1_directives.h
1922    o NB: this may break global_ocean adjoint temporarily,
1923      but it is clear how to fix it. Will do later, need this now.
1924    
1925    checkpoint55d_post
1926    o ECCO specific cost function terms (up-to-date with 1x1 runs)
1927    o ecco_cost_weights is modified to 1x1 runs
1928    o modifs to allow observations to be read in as
1929      single file or yearly files
1930    o enable to read exf forcing fields as either
1931      single file or yearly files (flag useExfYearlyFields)
1932    checkpoint55d_pre
1933    
1934    o switch between 2-level and 3-level checkpointing
1935    o add ability of MNC to write local and "partial" (eg. 2D slices where
1936      the full 3D field is never actually stored) arrays to NetCDF files
1937      with the correct (that is, the complete multi-dimensional) set of
1938      array indicies
1939      - used in mom_vecinv() to write the diagFreq output
1940      - tested (demonstrated) in verification/aim.5l_cs
1941    o further mnc-ification
1942      - add verification/lab_sea to the list with mnc setups
1943      - fix undefined mnc v-names in cd_code
1944      - add kpp to mnc output (both snapshot and timeave)
1945    o non-hydrostatic code
1946      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
1947        in calc_gw.F
1948      - defaults to viscAh
1949      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
1950        friction or Leith) in non-hydrostatic mode, as long as there is
1951        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
1952    o pkg/cost
1953      extend simple cost functions to treat time mean quantities
1954      (T,U,V) via cost_accumulate_state from cost_tile
1955    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
1956        be 2 times larger than the minimum size the advection scheme requires.
1957        now get a perfect conservation of salt in advect_cs test-exp (updated)
1958    o GGL90 (Gaspar's TKE mixed layer)
1959      - add horizontal diffusion of TKE, requires exchanges in
1960        do_fields_blocking_exchanges, horizontal diffusivity is zero by
1961        default. In OPA there is no horizontal diffusion of TKE but the
1962        mixing coefficients are computed from a horizontal average of TKE of
1963        6 points or so. I think that diffusion has a little more physical
1964        justification.
1965      - clean up ggl90_calc in the hope of reducing memory usage (this hope
1966        was in vain)
1967      - mask tke-variable in ggl90_init
1968    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
1969    o fix biharmonic diffusion on CS-grid.
1970    o more obcs stuff
1971      - added obcs_external_fields_load as an alternative to the EXF-pkg option
1972        for reading boundary values. This routine is called from
1973        obcs_prescribe_read
1974      - updated obcs_check
1975      - changed sponge layer relaxation parameter units for days to seconds
1976      - turned off sponge layer by default
1977      - changed argument list of OBCS_CALC to myTime+deltaTclock
1978      - fixed about 35 bugs in obcs_external_fields_load
1979    
1980    checkpoint55c_post
1981    o obcs stuff
1982      - new runtime flags useOBCSprescribe, useOBCSbalance
1983      - re-arranged obcs_calc
1984      - moved exf_getobcs to obcs_prescibe_read
1985        obcs_prescibe_read is called after ORLANSKI stuff
1986        and independent of it (executable can contain all).
1987      - updated obcs_check
1988      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
1989        These may be necessary only if tangential velocities are
1990        prescribed at OB, not sure, needs testing.
1991    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
1992      which simplifies the calls and passes the ifc check-bounds test
1993    
1994    checkpoint55b_post
1995    o add a 2D scalar, Z location, exchange_2 routine.
1996    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
1997      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
1998      affects advect_cs results (for the wrong reason): update output.txt
1999    o use a more standard discretization for biharmonic viscosity ;
2000     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
2001      affects results of dome set-up: update output.txt
2002    o fix gad_advection.F (CubedSphere part), back to version 1.23
2003    o fix bug in mom_vi_del2uv.F (CubedSphere part).
2004    
2005    checkpoint55a_post
2006    o merged code to
2007      * prescribe/read time-dependent open boundaries
2008        (works in conjunction with exf, cal)
2009      * sponge layer code for open boundaries
2010      * each boundary N/S/E/W now has its own CPP option
2011        (healthy for the adjoint)
2012    
2013    checkpoint55
2014    o up-to-date adjoint of previous breaks
2015      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
2016      - global_ocean_ebm: adjoint still needs fix (TLM ok)
2017      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
2018      - carbon: * remove tr1-related adjoint verification
2019                * add ptracer as control variable
2020    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
2021      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
2022    
2023    checkpoint54f_post
2024    o in verification/carbin/ remove experiment related to
2025      ALLOW_PASSIVE_TRACER (array tr1 etc)
2026      code_ad/ input_ad/ results_ad
2027    
2028    o add two new packages
2029      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
2030        + subject to optimization (memory)
2031      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
2032        + subject to reordering (many GOTOs in the original code)
2033        + so far opps is called for every (i,j) point, and then operates in
2034          the vertical; one may want to reorder the scheme in order operate in
2035          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
2036          fields)
2037    o overhaul of IO so that we now have flags for MDSIO and/or MNC
2038      - all verification tests compile and run with linux_ia32_g77
2039      - defaults are compatible with current input files--nothing
2040        should change if you were not previously using MNC
2041      - MNC output has been added in numerous places (eg. timeave)
2042        but there are still a few writes not yet do-able with MNC
2043        (this is in progress)
2044      - flags now allow for either/or/both use of MDSIO and MNC and
2045        documentation will soon follow
2046      - numerous small formatting cleanups for ProTeX
2047    o add version info (via BUILD_INFO.h) to MNC and stdout
2048    
2049    checkpoint54e_post
2050    o add two new packages
2051      - pp81 (Packanowski and Philander, 1981), Richardson number and
2052        stratification dependent mixing
2053      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2054      - these scheme operate in a similar manner as KPP (without ghat, of
2055        course), however there is only one diffusivity that is used for both
2056        temperature and salinity (and passive tracers)ç
2057    o add offline package
2058    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2059      provided by Stephanie Dutkiewicz
2060    o genmake2: add ability to search for C compilers and cleanup test output
2061      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
2062    
2063    checkpoint54d_post
2064    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
2065    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
2066      leading to additional shift by 5 days each year of integration
2067       (i.e. leading to considerable offset over the years)
2068    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
2069    o start with no AB and no initial filtering (staggerTimeStep):
2070      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
2071    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
2072      (external loading & cpl import/export stay in forward_step.F)
2073    o update coupling interface to work with new staggerTimeStep
2074    o change MDSIO ptracers_pickup.
2075    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
2076    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
2077    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
2078    
2079    checkpoint54c_post
2080    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
2081      this affects (truncation error) output.txt of test-exp:
2082       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
2083    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
2084    o change Qnet to always be the net heat flux, (+upward).
2085      affects (truncation error) output of natl_box exp.: updated
2086    o define the max number of passive tracers in PTRACERS_SIZE.h
2087    o start to test mnc routinely in exp0
2088    o add sea-ice loading (sIceLoad) as a new forcing field.
2089    
2090    checkpoint54b_post
2091    o add testreport "-j JOBS" option for parallel builds (tested and pretty
2092       impressive on Altix and Opteron systems)
2093    o diagnostics can now write NetCDF files through the mnc package
2094    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
2095    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
2096    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
2097      affects (truncation error) output of lab_sea & natl_box exp.: updated
2098    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
2099    
2100    checkpoint54a_post
2101    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
2102    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
2103    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
2104    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
2105      + internal_wave (shift in writing cg2d_ini_res)
2106    checkpoint54a_pre
2107    
2108    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
2109      - modified verification/lab_sea and natl_box_adjoint accordingly
2110    
2111    checkpoint54
2112    checkpoint53g_post
2113    o prepare splitting of thermodynamics: store convect.counter in common block
2114    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
2115      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
2116    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
2117    o new parameter "nShapS": allow to treat differently S from T (nShapT)
2118    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
2119    o restore adjointability
2120    
2121    checkpoint53f_post
2122    o modifications that affect AIM experiment results (update output.txt):
2123      - no advection of S at top interface Nr (pkg/generic_advdiff)
2124      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
2125    o AIM pkg:
2126      - include stability function into surf.Flux derivative relative to Tsurf
2127      - calculate clear-sky radiation & surface temp. change (for diagnostics)
2128    
2129    checkpoint53e_post
2130    o merged cylindrical coord configuration
2131    o added rotating_tank experiment
2132    checkpoint53e_pre
2133    
2134    checkpoint53d_post
2135    o faulks upgraded: re-generate output.txt that have changed:
2136       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
2137    o Added Bryan and Lewis, 1979, vertical diffusivity profile
2138    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
2139    o added Sadourny discretization of Coriolis
2140      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
2141      - re-enabled use of omega3 (useAbsVorticity)
2142    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
2143      vector-invariant equations
2144      - note: does *NOT* yet use same variable visc. for no-slip BC's.
2145    o recoded the lateral boundary conditions for non-hydrostatic w, this time
2146      hopefully without new bugs
2147      - still to do: biharmonic friction for non-hydrostatic w
2148    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
2149    o regenerated output for global_ocean_ebm (using -ieee)
2150    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
2151      of mom_common/
2152      - simple re-arrangement of instructions within computing loop
2153    checkpoint53d_pre
2154    
2155    checkpoint53c_post
2156    o new version of coupler for AIM+thSIce and Ocean models
2157     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
2158     - land: change Evaporation of snow
2159     - aim with thSIce: fix bug in snow-precip.
2160    o changes to calc_gw.F
2161     - bug fix for w^2 term near the bottom boundary
2162     - (hopefully) improve the lateral slip boundary condtions for use with
2163        partial/looped cells
2164      - because the bug fix changes two verification experiments anyway (exp5
2165        and plume on slope), change the lateral boundary condition from half slip
2166        to the value of no_slip_sides
2167    o ebm package wasnt quite up to the parallel task. Fixed that.
2168    o Adjoint of EBM package + verification
2169      * TLM OK
2170      * ADM not sufficient accuracy yet (needs further testing)
2171    
2172    checkpoint53b_post
2173    o Commiting new energy balance model to repository
2174      * package is pkg/ebm
2175      * verif. is verification/global_ocean_ebm
2176      * references are in ebm_driver.F
2177    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2178    C        Global thermohaline circulation. Part I:
2179    C        Sensitivity to atmospheric moisture transport.
2180    C        J. Climate 12(1), 71-82
2181    C      * X. Wang, P. Stone and J. Marotzke, 1999:
2182    C        Global thermohaline circulation. Part II:
2183    C        Sensitivity with interactive transport.
2184    C        J. Climate 12(1), 83-91
2185    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
2186    C        Destabilization of the thermohaline circulation
2187    C        by atmospheric eddy transports.
2188    C        J. Climate 7(12), 1870-1882
2189    o Will need long integration testing.
2190    checkpoint53b_pre
2191    
2192    o created pkg/mom_common in preparation for variable viscosity code
2193    o renamed and split ini_mnc_io
2194    o pkg/land: only liquid water can diffuse or run-off
2195    o AIM using land: soil wetness availability account for snow
2196    o added printMapIncludesZeros to EEPARMS namelist
2197    
2198    checkpoint53a_post
2199    o restore TAMC compatiility for exf_constants.h
2200      (no usage of _d in .h)
2201    o Additional storing in KPP in an attempt to fix
2202      TAMC problem with adjoint of KPP code.
2203      (no success...)
2204      Identical code works fine with TAF.
2205    o Fixed verification/natl_box_adjoint experiments.
2206      Initial conditions for Experiments 4 and 5 are now
2207      set to "SEAICE_initialHEFF=0", which is more reasonable,
2208      and hence gives results closer to that of Experiment 2.
2209      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
2210    
2211    checkpoint53
2212    o stable checkpoint with up to date adjoint
2213      TLM tests only run for 1st grdchk at the moment. Its unclear if
2214      this is a code problem or a problem with resetting code for g_
2215      variables that is being autogenerated wrong.
2216      Otherwise:
2217       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
2218       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
2219         are both still in chaos following their security messes.
2220    
2221    checkpoint52n_post
2222    o various build (mostly genmake2) changes including:
2223      - ability to build/run more easily within Cygwin and MacOS X
2224      - more complicated Makefiles with a stronger dependence on Gnu Make
2225    o pkg/seaice modifications
2226      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
2227        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
2228        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
2229      - changed proxy for geostrophic velocity and updated
2230        verification/lab_sea/results/* accordingly
2231      - removed ADI dynamic solver from pkg/seaice
2232      - replaced all occurrences of 1/CSTICE or 1/CSUICE
2233        they caused a segmentation fault under certain circumstances
2234      - removed unused field WATR
2235    o bug fix in exf-package:
2236      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
2237         now reflect that.
2238    o small fixes in the cal-package:
2239      - set reference date to first of January for the 'model'-calendar
2240      - failing of cal_CheckDate in cal_FullDate now actually results in a
2241        warning
2242    o small modifications in exf-package to increase flexibility:
2243      - change climtempfreeze from a constant to a runtime parameter that
2244        is specified in data.exf_clim (default = -1.9)
2245      - introduce runtime parameter windstressmax (default = 2.0) that is
2246        specified in data.exf
2247    o fix in pkg/thsice:
2248      - update Evap (Tsf changes) to be consistent with Latent heat flux
2249      - maintain snow precipitation unchanged (even if Tsf >=0).
2250     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
2251    
2252    checkpoint52m_post
2253    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
2254      this does not change any of the results, because myIter=0 in swfrac always
2255      lead to jwtype=2 (the default anyway), but the call makes little sense
2256      as a default
2257    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
2258    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
2259      atmospheric model (AIM) to use it ; add a "slab ocean" component.
2260    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
2261    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
2262    o extending useSingleCpuIO option to work with new exch2 I/O format
2263      - old-style, missing-tile I/O is still accessible by defining CPP
2264        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
2265    o monitor package can write to NetCDF files and/or STDOUT
2266    o fix re-definition bug in MNC_GRID_INIT_ALL()
2267    o doc/api_reference added
2268      - a framework for building an API Reference Manual using all
2269        the "protex" comments embedded in the code
2270      - see pkg/generic_advdiff, pkg/mnc for examples
2271    o MNC:
2272      - make myThid the last argument for all subroutines
2273      - new default for the grid files: NO halos
2274      - add useMNC and other run-time flags
2275      - separate per-file-group handling of the unlimited dimension
2276      - early initialization of MNC w/ flags read at the eeboot stage
2277        and lookup tables set in initialize_fixed
2278      - write all MNC output to a freshly-created directory
2279    o thermodynamics sea-ice (thsice) is now tested with testreport.
2280    o test exp. advect_cs: use the standard cs32 grid ; update output.
2281    o Added functionality to grdchk:
2282      pick global i,j,k position (or nearest wet) where to perform check.
2283    
2284    checkpoint52l_post
2285    o new land formulation:
2286      a) use ground enthalpy as prognostic variable to ensure exact
2287         energy conservation.
2288      b) account for water temperature and for latent heat of freezing
2289         in all processes (rain, run-off, ground storage)
2290      c) compute surface and ground temperature implicitly.
2291    o aim_v23 modification for new land model:
2292      a) Treat separately land / ocean / sea-ice surface fluxes
2293         to allow implicit computation of land & sea-ice surface temp.
2294      b) add snow precipitation.
2295    checkpoint52l_pre
2296    
2297    o fix problem (when 1 tile is empty) in min/max monitor.
2298    o fix bug in timeAve (u,vZetatave in common block)
2299    o no restoring terms under ice for pkg/seaice
2300    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
2301    o bug fix for pkg/seaice pickups
2302    o change MNC call locations and add coordinate attributes
2303    o mask vorticity at the corner ; affects global_ocean.cs output
2304    o fix ini_curvilinear_grid ; test CS experiments with mpi
2305    o aim.5l_cs: modify sea-ice fraction input file ; update output
2306    o exf: Adding simple range check routine for exf fields after read
2307    
2308    checkpoint52k_post
2309    o removed top-level directory "diags"
2310      - we migrated these functions to pkg/timeave a long time ago
2311    o fixed bug introduced in pkg/monitor
2312    o accuracy ctrlprec = 32 insuffient for gradient checks using
2313      averaged fields (I/O via cost_averages)
2314      -> use ctrl.h in active_file*.F to control I/O precision.
2315    o paramter list of CALL ADTHE_MAIN_LOOP
2316    o added initial do_the_model_io to ecco
2317    o set all ...Freq to zero after cost_final
2318      taveFreq, dumpFreq, pChkptFreq
2319    o MAIN and ECCO differentiability restored
2320    
2321    checkpoint52j_post
2322    o fix nchklev in tamc.h for global_ocean...
2323    o Bringing flow and store directives up-to-date
2324    o Really weird thing!
2325      call do_the_model_io from the_main_loop with parameters
2326      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
2327      TAF places a faulty re-call of initialise_varia
2328      after cost_final call which should not be there!
2329    checkpoint52j_pre
2330    
2331    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
2332      error messages
2333    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
2334    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
2335      debug output
2336    o modfied mdsio_writefield.F to handle non-global files under exch2
2337    o update AIM Cubed-Sphere exp (aim.5l_cs):
2338      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
2339    o update AIM Equatorial Channel exp:
2340      use standard aim_v23 pkg and change the SST fields to be more realistic.
2341    o globalFile now works with exch2
2342    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
2343      mon_vort3.F to make exch2 friendly with >1 tile per cube face
2344    o limit timeave output for hi-res integrations
2345    
2346    checkpoint52i_post
2347    o removed CPP_EEOPTIONS.h from verification/*/code
2348    o updated the tiling for global_ocean_pressure
2349    checkpoint52i_pre
2350    
2351    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
2352      the old pkg/aim).
2353    
2354    checkpoint52h_pre
2355    o shortened offending lines in exch2_send_rx?.template
2356    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
2357    o genmake2: add build & execute test for NetCDF code
2358    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
2359      old grid files, moved CPP_EEMACROS.h to pkg/exch2
2360    o added useSingleCPUIO flag to monitor.F and mon_out.F
2361    o added temporary hack for sea-ice dynamics on the cube:
2362      metric terms are ignored and it is assumed that
2363      there is no sea-ice on cube faces 1, 2, 4, and 5.
2364    
2365    checkpoint52f_post
2366    o added exch2 cube routines to pkg/exch2
2367    o modified hs94.cs-32x32x5 to use it
2368    o added new grid files to hs94.cs-32x32x5
2369    checkpoint52f_pre
2370    
2371    checkpoint52e_post
2372    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
2373      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
2374    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
2375      to work with implicit vertical advection and AB ;
2376    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
2377    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
2378     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
2379    checkpoint52e_pre
2380    
2381    o fix bug in impldiff when Nr=1 or Nr=2.
2382    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
2383    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
2384    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
2385      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
2386    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
2387    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
2388    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
2389    
2390    checkpoint52d_post
2391    o re-tiled many expts to allow comparison in multi-processor mode
2392      - updated output accordingly
2393      - changed hs94.128x64x5 to use intial T from file rather than use the
2394        random number generator
2395    o add infrastructure in model routines for fizhi and gridalt packages
2396    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
2397    o changes to permit hi-res, cubed-sphere, configuration
2398      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
2399      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
2400      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
2401        of surface winds for the cube
2402      (A verification experiment, based on global_ocean.cs32x15, but with
2403       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
2404       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
2405       complete with example surface forcing files and matlab scripts to look
2406       at the output and compare it with that of global_ocean.cs32x15.)
2407    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
2408       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
2409       to conform to the common rule.
2410    o check-in the first version of the coupler + interfaces for multi-components
2411       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
2412       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
2413       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
2414       - ocean and atmos. share the same horizontal grid (no interpolation).
2415       - exchanges between component and coupler is done in forward_step
2416    o new verification experiment, cpl_aim+ocn:
2417       coupled ocean - AIM atmosphere on cs32 grid.
2418    
2419    checkpoint52d_pre
2420    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
2421    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
2422    
2423    checkpoint52c_post
2424    o Fixing OPTIONS files for use of exf:
2425      - ALLOW_ECCO not needed
2426      - ECCO_CPPOPTIONS.h should not be included from
2427        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
2428        as has been the case in the past
2429      - All cal/exf related options are currently set in
2430        single header file. Should remain so until we
2431        agree on a consistent new policy.
2432    o Removed all CPP options for cal package.
2433      cal has no more CPP options.
2434    o modified STOREs in GAD_ADVECTION
2435    o corrected key comp. for passkey
2436    
2437    checkpoint52b_post
2438    o new version: "thsice" of thermodynamic sea-ice pkg:
2439     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
2440     - modify fluxes but do not change theta directly;
2441     - light cleaning of bulk_force pkg (still needed with thsice).
2442     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
2443       + output_thsice.txt to test thsice & bulk_force pkgs.
2444    o put back grid & coriolis monitor output.
2445    checkpoint52b_pre
2446    
2447    o call "do_the_model_io" at the beginning (=> dump initial state)
2448    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
2449    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
2450      (need info on NUMBER_OF_PTRACERS)
2451    o missing PTRACERS headers in some routines
2452    o default tamc.h in pkg/autodiff supposed to crash
2453      to ensure proper customization
2454    
2455    checkpoint52a_post
2456    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
2457      - moved surfaceTendencyTice from pkg/seaice to main code
2458      - subroutine FREEZE_SURFACE now limits only surface temperature
2459        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
2460        => new output.txt for global_ocean.cs32x15 & global_with_exf
2461      - keep the old version of FREEZE for backward compatibility;
2462        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
2463      - corresponding modifs for TAF directives
2464    o added surface flux output variables to TIMEAVE_STATVARS
2465    o time-averaged output for pkg/ptracers
2466    o fix problem with ECCO-related divided adjoint
2467      snapshot file was missing some ad-variables,
2468      but no warning issued by TAF
2469    
2470    checkpoint52a_pre
2471    o some bug fixes for #undef REAL4_IS_SLOW
2472    
2473    checkpoint52 = ecco_c52_e35
2474    o after testing adjoints of checkpoint51u_post
2475    
2476    checkpoint51u_post
2477    o this is the post-merge tag of the ecco-branch
2478      (needs another clean checkout and re-testing)
2479    o various natl_box_adjoint configs and results
2480      but no input fields
2481    o obcs adjoint not yet merged!
2482    o adding ECCO global 1x1 and 2x2 degree configs
2483    o updated/extended some store directives for seaice
2484    o pkg/ecco now containes ecco-specific part of cost function
2485    o top level routines the_main_loop, forward_step
2486      supersede those in model/src/
2487      previous input data.cost now in data.ecco
2488      (new namelist ecco_cost_nml)
2489    o in ctrl/ cleaned some cross-dependencies and updated CPP options
2490    
2491    checkpoint51t_post
2492    o this is the pre-merge tag of the ecco-branch
2493    
2494    checkpoint51s_post
2495    o cleanup: removed various obsolete #define-s
2496    o pkg/grdchk
2497      - renamed 'ph-grd 3' to 'grad-res'
2498      - merged from ecco-branch
2499        (remaining bug fixes for obcs gradient checks)
2500      - additional high-precision output for testreport
2501        (grep for 'precision_grdchk_result')
2502    
2503    checkpoint51r_post
2504    o cleaned up or removed CPP_OPTIONS.h files
2505    o updated results for some of the tests to reflect the new
2506      optfiles (-ieee: -O0 instead of -O3)
2507    
2508    checkpoint51q_post
2509    o cd_code:
2510      - moved cd_scheme.F -> cd_code_scheme.F
2511      - separate read_checkpoint from cd_code_ini_vars.F
2512      - separated cd_code part from write_checkpoint
2513      - updated AD_SOURCE, generated .flow
2514      - added CD_CODE_VARS.h to the_main_loop
2515      - Moving cd_code specific store dir.s to pkg/cd_code
2516    o ctrl package totally restructured
2517      - pack/unpack now optional and decoupled from
2518        xx_/adxx_ I/O
2519      - ctrl_pack/unpack cleaned
2520        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
2521      - confined inclusion of AD_CONFIG.h to where necessary.
2522    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
2523    
2524    checkpoint51p_post
2525    o create initial cd_code package
2526      - WARNING: the initialization of fields within packages
2527        is broken because INI_FIELDS (where READ_CHECKPOINT is
2528        called) is called *before* PACKAGES_INIT_VARIABLES.
2529        This seems to be backwards since
2530        1) its important to initially zero the entire field including
2531           the "halo" region
2532        2) zeroing needs to be done *before* reading pickup info
2533           and the pickup call might or might not happen in any
2534           particular run
2535      - this needs an overhaul for R2
2536    o cleanup verification/*/code/GMREDI_OPTIONS.h
2537    o cleanup testreport
2538    
2539    checkpoint51o_post
2540    o bringing AD-related verif's up to date with genmake2
2541      - carbon/
2542      - global_ocean.90x40x15/
2543      - hs.94.1x64x5/
2544      - (front_relax/ )
2545    o (more) consistent directory structure for AD-related verif.'s
2546    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
2547    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
2548    o bug fix in find_alpha.F for MDJWF:
2549      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
2550        change rho -> rho-rhoConst
2551      - replace call find_rho to find_rhonum
2552    o initialisation of rFlx extended to full array (required by TAF)
2553      and shifted to thermodynamics
2554    o removed PTRACERS.h in ptracers routine
2555    o added surfacetendencyPtr to S/R parameter list pracers_forcing
2556    o Correcting initialisations for fVerU, fVerV.
2557    o helping TAF to recognize dependency on kUp for
2558      fVerU, fVerV
2559    o Replacing delZ by delR in pkg/ctrl/
2560    checkpoint51o_pre
2561    
2562    o undid all of cp51 pending some cleanups and discussion
2563    o added the [#include "AD_CONFIG.h"] statement to all files that need
2564       it for adjoint/tl #defines
2565     o re-worked the build logic in genmake2 to support AD_CONFIG.h
2566     o removed tools/genmake since it no longer works
2567    
2568    checkpoint51n_post
2569    o modifications to make FREEZE flux visible to pkg/kpp
2570      - moved surfaceTendencyTice from pkg/seaice to main code
2571      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
2572      - subroutine FREEZE now limits only surface temperature
2573        (this means new output.txt for global_ocean.90x40x15,
2574         global_ocean.cs32x15, and global_with_exf)
2575    o added surface flux output variables to TIMEAVE_STATVARS
2576    
2577    checkpoint51n_pre
2578    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
2579    o added [#include "AD_CONFIG.h"] to all files that use the following
2580      defines:
2581      - ALLOW_ADJOINT_RUN
2582      - ALLOW_TANGENTLINEAR_RUN
2583      - ALLOW_ECCO_OPTIMIZATION
2584    
2585    checkpoint51m_post
2586    o incorporating changes to get TAMC/TAF working in genmake2
2587      - added new TAMC/TAF targets to the Makefile
2588      - various cleanups related to package handling
2589      - these changes should have no impact on the forward model
2590    
2591    checkpoint51l_post
2592    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
2593     - faster algorithm for cal_addtime.F
2594     - higher precision arithmetic, where needed
2595     - pkg/exf *startdate variables changed from calendar date to
2596       model integration time
2597    
2598    checkpoint51l_pre
2599    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
2600    o enable to apply restoring on S & T only in a latitude band.
2601    o update output (external_forcing_surf modif. change truncation errors)
2602       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
2603    
2604    checkpoint51k_post
2605    o change default to: useNHMTerms=.FALSE.
2606     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
2607       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
2608     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
2609        exp1, ideal_2D_oce
2610     - change data file of oceanic exp (leave the results unchanged for now)
2611       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
2612    o set gravitySign automatically according to the vertical coordinate used
2613      (and change sign: back to "logical" value: +1 when R increases downward)
2614    o added an include barrier to the default CPP_OPTIONS.h and
2615      removed the #include "PACKAGES_CONFIG.h" from it
2616    o fix a bug in mom_fluxform (from chk51j_post)
2617    
2618    checkpoint51j_post
2619    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
2620    o adjusted some flow directives (dynamics, thermodynamics)
2621    o added cubed-sphere case to test cost function
2622    o heckpoint_lev?_directives.h now include
2623      pkg-specific directives, whenever those are enabled.
2624    o Moving pkg-specific flow directives to corresponding pkg
2625      Moving pkg-specific differentiation list to corresponding pkg
2626      Moving pkg-specific checkpoint-lev storing to corresponding pkg
2627      ---> conventions are
2628           - pkg_ad.flow
2629           - pkg_ad_diff.list
2630           - pkg_ad_check_lev?_dir.h
2631    
2632    checkpoint51i_post
2633    o merge of the branch-genmake2
2634      - knowingly breaks the older genmake
2635      - automatic generation of all ALLOW_${PKG_NAME} defines
2636      - new testreport supersedes older testscript
2637    o large number of package inclusion and header cleanups
2638    checkpoint51i_pre
2639    
2640    o new output for adjoin of global ocean vector invariant
2641    o fix for checkpoint of thermodynamic seaice and bulk_force
2642    o Steph gchem various cleanups
2643    
2644    checkpoint 51h_pre
2645    o fixed some single quotes
2646    o modify gchem pkg to be more versatile
2647    o modifications to clean up dic pkg
2648    o add pkg/cfc
2649    
2650    checkpoint51g_post
2651    o provide links for ARPACK and ADM*TLM
2652    o start removing verification/vero/
2653    o update AD-related stuff
2654      (in particular some IF-statements in model/src/ routines)
2655    o adding to verification/global_ocean.90x40x15/ adjoint of
2656      vector invariant setup
2657    
2658    checkpoint51f_post
2659    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
2660    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
2661      of tracer Green's fucntions for ocean inversion project.
2662    
2663    checkpoint51f_pre
2664    o Added on-the-fly spatial interpolation capability
2665        "USE_EXF_INTERPOLATION" to pkg/exf.
2666      - This is a temporary Cartesian-grid hack until
2667        the super-duper ESMF coupler becomes available.
2668      - See verification/global_with_exf/README for usage example.
2669      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
2670        flags and modified pkg/seaice accordingly.
2671    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
2672        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
2673        non-local transport term.
2674    
2675    checkpoint51e_post
2676    o pkg/mom_vecinv:
2677      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
2678      - add time-ave diagnostic of vorticity advection.
2679    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
2680    o atmospheric geopotential: - include water vapor effect;
2681                                - use p^kappa in p* scaling.
2682    o land pkg: read initial state from files.
2683    o AIM : add stratospheric drag in the upper level
2684    
2685    checkpoint51d_post
2686    o change function ILNBLNK (=> last non-blank char.) to return zero
2687      (instead of the string length) when the string. char is empty
2688    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
2689    o modif's to restore TAMC compatibility
2690      - avoid "_d" constructs in PARAMETER declarations
2691      - avoid interrupting lines by comment lines
2692    o Use cluster local disks for purely local I/O
2693      vs. globally visible disks needed for ctrl stuff
2694      (merged from ecco-branch)
2695      - new active_file_loc... and mdsio_..._loc routines
2696      - affected packages: autodiff, ctrl, grdchk, mdsio
2697    
2698    checkpoint51c_post
2699    o introducing integer flag debugLevel
2700      - debLevZero: suppress all output
2701      - debLevA: standard
2702      - debLevB: equivalent to current debugMode=.TRUE.
2703    o introducing pathname variable mdsioLocalDir for mdsio
2704      that can be specified at runtime
2705      (relevant for cluster I/O to local disk)
2706    `
2707    >>>checkpoint51b_post
2708    adjoint of ptracers
2709    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
2710    o extended state in checkpoint_lev?, etc.
2711    o alternative ctrl/cost with tr1 or ptracer
2712    o new comlev1_bibj_ptracers
2713    o new ptracers.flow
2714    o made ptracers_forcing same as external_forcing_s
2715    o added verification for adjoint with ptracers
2716      - adm. grdchk fail so far
2717      - tlm. grdchk OK
2718      - checked tapelev/comlev recomputations: OK
2719    <<<checkpoint51b_pre
2720    
2721    checkpoint51a_post
2722    o added code for biogeochemistry package
2723      - new pkgs: dic, gchem
2724      - new subroutine in ptracers
2725    o modify code for biogeo packages
2726      - in model/src and pkg/ptracers
2727    
2728    checkpoint51
2729    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
2730      - autodiff, ctrl, exf, grdchk, seaice
2731      kept separate packages
2732      - cost, ecco, obcs
2733    o updating verification/internal_wave, verification/lab_sea
2734      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
2735    
2736    checkpoint50i_post
2737    o Preparing next differentiable checkpoint and sync
2738      of MAIN vs. ecco-branch
2739      - 1st step: this one is differentiable
2740      - 2nd step: next(! not this) checkpoint will have updated packages
2741                  from ecco-branch)
2742    
2743    checkpoint50h_post
2744    o new package "land": provide surface BC for AIM.
2745    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
2746    o AIM: use true log-P extrapolation for near surface temp (= as in
2747        F.Molteni paper) ; update aim.5l_cs output.
2748    o New variable in PARM03 for more flexible pickups
2749    o somewhat cleaned package initialisation sequence for
2750      ctrl/ cost/ ecco/ in packages_... routines
2751    
2752    checkpoint50g_post
2753    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
2754      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
2755      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
2756        made the default because of faster convergence than ADI
2757    
2758    checkpoint50f_post
2759    o exf totally restructured
2760      - replaced all exf_set_ routines by one generic exf_set_gen.F
2761        and made sure it's still differentiable
2762      - split exf_getffields.F into new exf_bulkformulae.F
2763      - exf_inscal_/exf_outscal_ suffixes consistent with field names
2764      - updated adjoint/makefile and relevant verif. accordingly
2765    
2766    checkpoint50f_pre
2767     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
2768          + change Evap over land. (update aim.5l_cs output)
2769     o added missing .cvsignores and made uniform across expts
2770     o changed configuration of tidal_basin_2d expt
2771     o added pkg/debug functions for tracing code in fatal crashes
2772     o tidied pkg/monitor to use MONITOR_OPTIONS.h
2773     o new fn in pkg/monitor to stop model if solution grows too big
2774     o removed lots of single quotes from comments
2775    
2776    checkpoint50e_post
2777    o make KPP work with PTRACERS
2778     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
2779       nearly a copy of kpp_transport_s
2780     - there is no analogue to SurfaceTendencyS, so I have to use
2781       gPtr(of the surface layer) instead
2782    o add a new platform SunFire+mpi (SunFire 15000) to genmake
2783    checkpoint50e_pre
2784    
2785    checkpoint50d_post
2786    o change kpp output from multiple-record state files to single-record state
2787      files analogous to write_state.F
2788    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
2789      analogous to the cg2d-related output.
2790    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
2791      so that writing to internal file fn (with length 512) fails.
2792    checkpoint50d_pre
2793    
2794    checkpoint50c_post
2795    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
2796    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
2797    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
2798    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
2799    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
2800    
2801    checkpoint50c_pre
2802    Merging from release1_p13:
2803    o bug fix for pkg/seaice dynamic solver
2804    o Added SEAICE_initialHEFF to pkg/seaice
2805    
2806    checkpoint50b_post
2807    o store u*,v* in gU,V instead of in guNm1,gvNm1
2808    o in order to put the momForcing out of the Adams-Bashforth:
2809      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
2810      to timestep.F
2811    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
2812    o re-generate output for highly sensitive test-exp:
2813       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
2814    
2815    checkpoint50b_pre
2816    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
2817    o corrected CPP option mismatch in exf_Bulk... functions for case
2818      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
2819    
2820    checkpoint50a_post
2821    o Bug fix for merging between c50 and KPP.
2822      ikey was passed from thermodynamics to kpp_calc via
2823      common block rather than being recomputed in kpp_calc,
2824      in contradiction with new key itdkey.
2825      New key ikppkey created, and tamc.h headers updated.
2826    
2827    checkpoint50
2828    - 2nd step of merge with ecco-branch:
2829      merge changes in ecco-branch back into main trunk
2830    - bug fix in find_alpha
2831    - more storing in gmredi_calc_tensor.F, kpp_routines.F
2832    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
2833    - merged some sliced AD support routines
2834    
2835    checkpoint49
2836    merged from ecco-branch:
2837    o exf:
2838      - Enable initialisation of forcing fields to constant
2839        (runtime) values.
2840      - in exf_getffields.F
2841        Reduce i-/j-loop to interior domain, discarding overlaps.
2842        That also fixes wrong TAF-key computations for key_1, key_2
2843        with bulf formulae.
2844      - exf_init.F modify #ifdef for exf_init_evap
2845      - exf_getffieldrec.F, ctrl_getrec.F
2846        The following INT-usages are not safe:
2847          fldsecs  = int(fldsecs/fldperiod)*fldperiod
2848          fldcount = int(fldsecs/fldperiod) + 1
2849        and were modified.
2850    o autodiff: checkpoint_lev...
2851      - updated storing for bulk formulae (some arrays were missing)
2852      - added state for seaice package
2853      - synchronized with main branch
2854    o DIVA:
2855      Modif.s in
2856      - the_main_loop.F
2857      - the_model_main.F
2858      and added cost_final_restore.F cost_final_store.F
2859      o With these changes, it is possible to fully separate
2860        the first forward run to compute the cost function (mdthe_main_loop)
2861        and adjoint runs over individual DIVA intervals (adthe_main_loop)
2862        into separate model executions.
2863        This enables better tuning of DIVA to given queue sizes.
2864      o Loss of cost function value in consecutive DIVA runs is
2865        fixed by storing to 'costfinal' file.
2866      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
2867        beginning/end of adjoint integration is accounted for.
2868      The current changes apply to TAF-1.4.26.
2869      TAF has one remaining bug, requiring one manual change
2870      (see MITgcm manual).
2871    o cal: synchronized between MAIN and ecco-branch
2872    
2873    checkpoint48i_post
2874    o Changes to restore differentiability of code w.r.t. previous tag
2875      (mostly adding new routines to make list and replacing
2876      pressure by totPhiHyd).
2877    o Updated and merged grdchk package
2878      - has both ADM and TLM checks
2879      - works for single- and multi-proc.
2880      - output cleaned
2881      - worked successfully for parallel DIVA
2882    o genmake:
2883      - Adding -platform=SP4
2884      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
2885    o Modif. for DIVA:
2886      ctrl_unpack should not be called in intermediate DIVA interval.
2887      (similar thing would apply for active files such as
2888      tbar, sbar, psbar, which should not be reinitialised;
2889      only relevant for ecco-branch)
2890    
2891    checkpoint48h_post
2892    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
2893    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
2894    o Added SEAICE_initialHEFF to pkg/seaice
2895    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
2896    
2897    checkpoint48g_post
2898    --- EOS:
2899    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
2900      store total Potential in totPhyHyd for diagnostics & EOS.
2901    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
2902    --- Pressure/geopotential gradient:
2903    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
2904    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
2905      ( changes results of global_ocean_pressure )
2906    o NLFS + z-coord.: add eta*Rho' contribution.
2907    o accurate phiHyd when using interface-W at the middle between 2 centers
2908     ( changes results of ideal_2D_oce )
2909    o includes r* 2nd term in potential gradient.
2910    
2911    checkpoint48f_post
2912    Merging from release1_p12:
2913    o Modifications for using pkg/exf with pkg/seaice
2914      - improved description of the various forcing configurations
2915      - added basic radiation bulk formulae to pkg/exf
2916      - units/sign fix for evap computation in exf_getffields.F
2917      - updated verification/global_with_exf/results/output.txt
2918    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
2919      (SBO) core products, including oceanic mass, center-of-mass,
2920      angular, and bottom pressure (see pkg/sbo/README.sbo).
2921    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
2922      to avoid negative values in shallow regions.
2923      - updated verification/natl_box/results/output.txt
2924      - updated verification/lab_sea/results/output.txt
2925    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
2926    o Added useSingleCpuIO option (see PARAMS.h).
2927    o Updated useSingleCpuIO option in mdsio_writefield.F to
2928      work with multi-field files, e.g., for single-file pickup.
2929    o pkg/seaice:
2930      - bug fix in growth.F: QNET for no shortwave case
2931      - added HeffFile for specifying initial sea-ice thickness
2932      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
2933    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
2934      kpp_transport_t.F, forward_step.F, and the_main_loop.F
2935    o pkg/seaice:
2936      - adjoint-friendly modifications
2937      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
2938    
2939    checkpoint48e_post
2940    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
2941    o dynamics: change definition of computational domain & adapt mom_fluxform
2942      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
2943    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
2944        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
2945        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
2946        global_ocean.90x40x15 global_with_exf global_ocean_pressure
2947        inverted_barometer solid-body.cs-32x32x1
2948      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
2949    
2950    checkpoint48d_post
2951    o in preparation for r*:
2952     a) use pre-computed gradient of hydrostatic potential:
2953        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
2954     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
2955        => affects results of glob_oce_pressure (different truncation error)  
2956      update output.txt of ideal_2D_oce & global_ocean_pressure
2957    
2958    checkpoint48d_pre
2959    o in preparation for r*:
2960      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
2961      pass the 2 comp. of the grad. as arguments to momentum S/R.
2962      but for the moment, only used if it does not change the results.
2963    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
2964    
2965    checkpoint48c_post
2966    Modifications in treatment of initial flux forcing controls
2967    to avoid extra storing of flux fields.
2968    
2969    checkpoint48c_pre
2970    o Added tidal_basin_2d experiment (currently 1D!)
2971    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
2972    
2973    checkpoint48b_post
2974    o r* coordinate added in #ifdef NONLIN_FRSURF block.
2975     (modification to pressure gradient not yet implemented)
2976    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
2977      (for U & V) that are used for vertical advection of momentum.
2978    
2979    checkpoint48a_post
2980    o In preparation for r*, use temp. array to compute vertical transport
2981       in flux-form momentum pkg. => change results of few test-exp.
2982      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
2983                        lab_sea, natl_box & plume_on_slope
2984    
2985    checkpoint48
2986    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
2987    
2988    checkpoint47j_post
2989    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
2990    o moved adexch from forward_step to addummy_in_stepping
2991    o added exch in ctrl_map_...
2992    o aveFreq.=0. at end of cost_final to avoid overwrite in
2993      reverse checkpointing loop
2994    o Yet more changes in gmredi:
2995      * adgmredi_calc_tensor
2996        avoiding all recomputation of gmredi_slope_limit
2997      * adgmredi_x/y/rtransport
2998        added flag for excessive storing to avoid recomp. of
2999        u/v/rtans, dTdx/y/z
3000        -> this is not really necessary and very memory-consuming
3001      * adgmredi_slope_psi:
3002        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
3003      * gmredi_slope_limit
3004        re-activated full calculation of taperfct for case 'ac02'
3005    o updating verification/ adjoints of carbon, global_ocean.90x40x15
3006    
3007    checkpoint47i_post
3008    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
3009    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
3010      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
3011    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
3012    o gmredi: fix few bugs.
3013    
3014    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
3015    This will be a good checkpoint to plug into the ecco-branch.
3016    o few modif.'s to get latest version adjointed
3017      (mainly kick out code in ini_linear_phisurf)
3018    o modif's to run adjoint with exactConserv
3019    o case GM_BOLUS_ADVEC should be cleaned
3020      S/R gmredi_slope_psi should be cleaned
3021    o verification/carbon now has exactConserv=.TRUE.
3022    
3023    checkpoint47g_post
3024    o time-average AIM output: becomes independent from statvars time-average
3025      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
3026    o After TAF bug fix:
3027      Tested adjoint of gmredi package.
3028      Tests were done with checkpoint47 rather than with latest
3029      checkpoint47f_post since the latter is broken for the adjoint
3030      verification/carbon/ contains both ADM and TLM gradient checks.
3031    Here they are, before they get changed/lost/stolen.
3032    Mostly modif.'s to fix numerical sensitivities.
3033    Gradient checks OK for
3034    - GM_taper_scheme:
3035      * clipping
3036      * ac02
3037      * linear
3038      * glw91
3039      * dm95
3040      * ldd97
3041    - GMREDI_OPTIONS:
3042      * GM_VISBECK_VARIABLE_K
3043      * GM_NON_UNITY_DIAGONAL
3044      * GM_EXTRA_DIAGONAL
3045      * GM_BOLUS_ADVEC
3046    in conjunction with data.gmredi parameters to be checked in
3047    in a few minutes under verification/carbon/code/
3048    
3049    checkpoint47f_post
3050    Merging from release1_p10:
3051    o modifications for using pkg/exf with pkg/seaice
3052      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
3053        and SEAICE_EXTERNAL_FLUXES
3054      - pkg/exf CPP options EXF_READ_EVAP and
3055        EXF_NO_BULK_COMPUTATIONS
3056      - usage examples are Experiments 8 and 9 in
3057        verification/lab_sea/README
3058      - verification/lab_sea default experiment now uses
3059        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
3060    
3061    checkpoint47e_post
3062    o created a tag prior to creating a branch
3063    
3064    checkpoint47d_post
3065    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
3066      at the bottom boundary had an erroneous half slip boundary condition
3067    o added bottom drag and no slip boundary condition capabilities to
3068      oceanic pressure coordinates code
3069    o added new verification experiment global_ocean_pressure, this experiment is
3070      also described in the tutorial section of the manual
3071    checkpoint47d_pre
3072    
3073    checkpoint47c_post
3074    o Added a verification experiment for a global cubed-sphere ocean run
3075      -  verification/global_ocean.cubed32x32x30
3076      -  uses pkg/therm_seaice and pkg/bulk_forcing
3077    
3078    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
3079    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
3080      when using P-coordinate; only implemented for atmospheric config.
3081    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
3082      NOTES: requires option NONLIN_FRSURF to be "#define".
3083    o update advect_xz/results/output.txt (left from checkpoint44g_post)
3084    
3085    checkpoint47b_post
3086    Merging from release1_p9:
3087    o pkg/seaice
3088      - removed GOTO's and added taf directives
3089      - double precision constants to reduce the g77 (Linux)
3090        to F77 (SGI) differences reported in release1_p8
3091    o tools/genmake
3092      - added SGI options
3093    o verification/testscript
3094      - updated to that of checkpoint47a_post
3095    o verification/global_ocean.90x40x15/input/eedata
3096      - modified for SGI f77 compatibility
3097    o verification/lab_sea
3098      - added description of sea-ice model
3099      - added missing matlab routines
3100      - added test of thermodynamics parallelization
3101    
3102    checkpoint47a_post
3103    o new pkg: aim_v23
3104     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
3105       for now, keep the same surface forcing as before.
3106     - Part-Cell implemented into AIM; check that Heat & Water are conserved
3107     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
3108     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
3109    o add diagnostic of surface correction term in monitor output
3110    
3111    o bulk_force and therm_seaice
3112    - Two packages:  bulk_force (Bulk forcing)
3113      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
3114    - Earlier integration from Stephaine Dutkiewicz
3115      and Patrick Heimbach.
3116    - Two ifdef statements for compile time,
3117       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
3118    
3119    checkpoint47
3120    differentiable version of checkpoint46n_post
3121    o bug fix in quasihydrostaticterms
3122    o * "clean" adjoint code (in terms of extensive recomputations)
3123        can now be obtained for all GMREDI options (i.e. for
3124        - GM_VISBECK_VARIABLE_K
3125        - GM_NON_UNITY_DIAGONAL
3126        - GM_EXTRA_DIAGONAL
3127        - GM_BOLUS_ADVEC )
3128      * However, wrong gradient check problem remains unsolved.
3129      * New CPP options have been introduced for different
3130        tapering schemes
3131    o external_fields_load now part of differentiation list
3132    o pressure needs multiple storing;
3133      would be nice to have store_pressure at beginning or
3134      end of forward_step, e.g. by having phiHyd global (5-dim.)
3135      (NB: pressure is needed for certain cases in find_rho,
3136      which is also invoked through convective_adjustment).
3137    o recomputations in find_rho for cases
3138     'JMD95'/'UNESCO' or 'MDJWF' are OK.
3139    o #define ATMOSPHERIC_LOADING should be differentiable
3140    o ini_forcing shifted to begining of initialise_varia
3141    o Incorporating QNVS line search routines into MITgcm
3142      (this is separate code, and therefore not under pkg)
3143      lsopt/, optim/
3144    o Updated verification/carbon/
3145      - #define GM_VISBECK_VARIABLE_K
3146      - GM_taper_scheme    = 'ldd97'    
3147    
3148    checkpoint46n_post
3149    Merging from release1_p8:
3150    o verification/natl_box:
3151      updating new external_fields_load routine
3152    o New package: pkg/seaice
3153      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
3154      The sea-ice code is based on Hibler (1979-1980).
3155      Two sea-ice dynamic solvers, ADI and LSR, are included.
3156      In addition to computing prognostic sea-ice variables and diagnosing
3157      the forcing/external data fields that drive the ocean model,
3158      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
3159      The implied surface heat flux is then stored in variable
3160      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
3161      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
3162      non-local transport term.  Because this call precedes model
3163      thermodynamics, temperature under sea-ice may not be "exactly" at
3164      the freezing point by the time theta is dumped or time-averaged.
3165      N.B.: fairly large differences in accuracy occur across
3166            different platforms/compilers; comparison between
3167            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
3168            generated output gives:
3169       T           S           U           V
3170      C D M    c        m  s        m  s        m  s        m  s
3171      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
3172      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
3173      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
3174    
3175      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
3176    o GAD:
3177      - generated new common blocks to account for call of
3178        same gad routines with differing traceridentities
3179        (needed to modify tracerIdentity indices in GAD.h)
3180      - generated separate common blocks for case useCubedSphereExchange
3181        (Department of Futurology)
3182      - parameter lists to gmredi_?transport: added tracerIdentity
3183      - added new key indices to tamc.h
3184    o external_fields_load:
3185      - added this routine to TAF list
3186      - needed to make some common blocks global and additional storing
3187        along the same lines as exf package (checkpoint_lev?_directives.h)
3188    o exf:
3189      updated external forcing package
3190      - bug fixes carried over from ecco-branch
3191        (missing OBCS_OPTIONS.h in two routines)
3192      - enable easy to use "no forcing".
3193      - added exf I/O for atmospheric loading
3194      - added exf I/O for runoff data
3195      - transfered scaling between exf <-> MITgcm to exf namelist
3196    o Adding new verification experiment global_with_exf.
3197      This verification experiment is almost identical to the
3198      global_ocean.90x40x15 experiment, except that it uses
3199      the exf (and cal) package instead of the
3200      external_fields_load routine (cf README file).
3201    
3202    checkpoint46m_post
3203    o modified testscript to return -- when there are no lines of "%MON" output
3204    o added new flag "quasiHydrostatic" for QH mode
3205      and new routine quasihydrostaticterms()
3206    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
3207      New routine: mom_u_coriolis_nh()
3208    o fixed sign of non-hydrostatic metric terms in u and v equations.
3209      Depend on correct sign of gravitySign.
3210    o added work.pc* to .cvsignore in aim directories using ifc
3211    o introduced flag for controllin non-hydrostatic metric terms
3212    o removed gravitySign from PARM04
3213    o switched to g77/ifc from pgf77 in aim experiments
3214    
3215    checkpoint46l_post
3216    o made convective adjustment work with pressure coordinates:
3217     - changed the direction of k-loop in convective_adjustment.F for the
3218       case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
3219     - adjusted the reference pressure k-index in convective_adjustment.F
3220     - adjusted the convection condition in convect.F (in analogy to
3221       calc_ivdc.F)
3222     - convective_adjustment no longer computes anything on the halos
3223     - removed the warnings about negative salinity from find_rho.F and
3224       find_alpha.F; instead the new routine look_for_neg_salinity, called
3225       at the beginning of find_rho, find_alpha, and find_beta, does a
3226       check of the entire slice, if CPP-option
3227       CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
3228    checkpoint46l_pre
3229    
3230    checkpoint46k_post
3231    o fixed the verification/global_ocean.90x40x15 experiment:
3232     - new bathymetry (the world according to A., JMC, and M.)
3233     - new initial fields and forcing fields (*.bin files)
3234     - new POLY3.COEFFS (for the next release one should switch to a full
3235       equation of state: JMD95P or MDJWF)
3236     - fixed several errors and redundancies in the data file
3237     - experiment uses looped cells
3238     - added matlab directory with diagnostic scripts for plotting of output
3239    
3240    o S/R aim_initialise.F replace S/R aim_init from file aim_do_inphys.F:
3241     - read AIM physics parameters from a file (data.aimphys)
3242     - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
3243    
3244    checkpoint46j_post
3245    o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
3246    o move wVel computation at the end of the time step, in S/R integr_continuity
3247    o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
3248    o update timeave pkg for wVel diagnostic.
3249    checkpoint46j_pre
3250    
3251    checkpoint46i_post
3252    o Clean up AIM package (and keep the results unchanged):
3253      include CPP_OPTION and use IMPLICT NONE in all routines ;
3254      declare all the variables _RL ; use _d 0 for all numerical constants.
3255      use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
3256    
3257    checkpoint46h_post
3258    o cleaned up the use of rhoNil and rhoConst.
3259      - rhoNil should only appear in the LINEAR equation of state, everywhere
3260        else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
3261        and the dynamical equations are all divided by rhoConst
3262    o introduced new parameter rhoConstFresh, a reference density of fresh
3263      water, to remove the fresh water flux's dependence on rhoNil. The default
3264      value is 999.8 kg/m^3
3265    o cleanup up external_forcing.F and external_forcing_surf.F
3266      - can now be used by both OCEANIC and OCEANICP
3267    checkpoint46h_pre
3268    
3269     Added code to convert surface volume flux (fresh water) into
3270     a mass flux when using P coordinates in the ocean (OCEANICP).
3271     Note: It assumes you have set rho0=rhoConst=density of fresh water.
3272    
3273    checkpoint46g_post
3274    o Include a new diagnostic variable phiHydLow for the ocean model
3275      - in z-coordinates, it is the bottom pressure anomaly
3276      - in p-coordinates, it is the sea surface elevation
3277      - in both cases, these variable have global drift, reflecting the mass
3278        drift in z-coordinates and the volume drift in p-coordinates
3279      - included time averaging for phiHydLow, be aware of the drift!
3280    o depth-dependent computation of Bo_surf for pressure coordinates
3281      in the ocean (buoyancyRelation='OCEANICP')
3282      - requires a new routine (FIND_RHO_SCALAR) to compute density with only
3283        Theta, Salinity, and Pressure in the parameter list. This routine is
3284        presently contained in find_rho.F. This routine does not give the
3285        correct density for 'POLY3', which would be a z-dependent reference
3286        density.
3287    o cleaned up find_rho
3288      - removed obsolete 'eqn' from the parameter list.
3289    o added two new verification experiments: gop and goz
3290      (4x4 degree global ocean, 15 layers in pressure and height coordinates)
3291    checkpoint46g_pre
3292    
3293    checkpoint46f_post
3294    o Enable tangent linear (forward mode) gradient checks:
3295      - extended active file handling to g_... files
3296      - added TANGENT_SIMULATION to theSimulationMode
3297      - extended grdchk package accordingly
3298    o added tangent linear setup in verification/carbon/code_ftl
3299    o added adjoint setup in verification/front_relax/code_ad
3300    
3301    checkpoint46e_post
3302    o Added new equation of state -> MDJWF
3303      - EOS of McDougall et al., 2002, JAOT, submitted
3304      - caveat: the equation of state is only valid for a smaller (more
3305        realistic?) range of values than JMD95P/Z and UNESCO
3306      - added masks to the calculation of pressure in store_pressure
3307      - added more check values for density in check_eos (ini_eos.F), some of
3308        the old check values are out of the range of the MDJWF-eos, so don't
3309        expect perfect matches for those
3310    checkpoint46e_pre
3311    
3312    checkpoint46d_post
3313    o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
3314      'OCEANICP', also initialised field pressure correctly in ini_eos in the
3315      case of pressure coordinates. eosType='JMD95Z' in
3316      combination with buoyancyRelation='OCEANICP' now causes an error.
3317    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3318      in find_alpha/beta.
3319    checkpoint46d_pre
3320    
3321    o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
3322      so that JMD95Z and JMD95P give approptiate static stability in find_rho.
3323    
3324    checkpoint46c_post
3325    o Changes necessary for ocean in p-coordinates
3326     -  Added new buoyancy relation = 'OCEANICP'
3327     -  Added new parameters = gravitySign (this used to be contained inside
3328        the factor dRdZ which I added when we first switched to R coordinates).
3329     X GM/Redi is not compatible (yet)
3330     X bottom drag and no-slip need to be debugged.
3331    checkpoint46c_pre
3332    
3333    checkpoint46b_post
3334    o Added new equation of state -> JMD95Z and JMD95P
3335      - EOS of Jackett and McDougall, 1995, JAOT
3336      - moved all EOS parameters into EOS.h
3337      - new routines ini_eos.F, store_pressure.F
3338    o Added UNESCO EOS, but not recommended because it requires
3339      in-situ temperature (see JMD95)
3340    o Modified formatting for knudsen2.f in utils/knudsen2 and added
3341      unesco.f to be used with POLY3
3342    checkpoint46b_pre
3343    
3344    checkpoint46a_post
3345    o Added (atmospheric) pressure loading
3346      - new field in FFIELDS.h, etc...
3347      - new cpp flag ATMOSPHERIC_LOADING
3348    o Changed hFacC to _hFacC in calc_phi_hyd.F
3349    o Added SHORTWAVE_HEATING to some files for consistency
3350    checkpoint46a_pre
3351    
3352    checkpoint46
3353    further merges from release1_p5
3354    o new ctrl package
3355      - adopted from ECCO environment to enable optimization
3356      - added Eliassen Palm fluxes to controls
3357    o added Eliassen Palm flux controls to gradient check package
3358    o cost package
3359      - Compatible with new ctrl package
3360      - added Eliassen Palm cost hooks
3361      - modif's of existing cost functions
3362    o Adjoint-related bug fixes in kpp:
3363      - kpp_calc: sore of kpphbl avoids recomputation/call to S/R kppmix
3364      - kpp_routines: store of Rib avoids partial recomputation bug of TAF.
3365    o autodiff package
3366      - flow directives:
3367        + new for S/R do_the_model_io
3368        + enhanced for S/R checkpoint
3369        + new gmredi.flow
3370      - Introduced CPP option ALLOW_AUTODIFF_MONITOR to
3371        disable adcommon.h/g_common.h by default.
3372      - fixed problem for adjoint of global_max
3373    o modified verification/carbon/
3374    o New setup for adjoint of global_ocean
3375    o added hooks for Eliassen Palm fluxes (dynamics.F, ini_fields.F)
3376    o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
3377    o incorporated hooks for sponge layer code (external_forcing.F)
3378    
3379    checkpoint45d_post
3380    o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
3381  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
3382    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
3383    o add new parameter deltaTfreesurf for free-surface time stepping
3384    o exchange gT,gS when using staggerTimeStep & GM & Oly<4
3385  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B  o NONLIN_FRSURF: rescale gNm1 to get a better conservation with A-B
3386  o change phiMin in exp1 (to agree with documentation)  o change phiMin in exp1 (to agree with documentation)
3387  o add new flags:  o add new flags:

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