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revision 1.1590 by jmc, Sat Feb 4 17:25:23 2012 UTC revision 1.1687 by gforget, Wed Jul 11 21:51:27 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o verification/global_ocean.cs32x15/input.seaice :
8     - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
9     - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
10     - update results (output.seaice.txt) accordingly.
11    o verification/lab_sea/input/data.seaice :
12     - remove SEAICEheatConsFix, which is now be tested
13       in global_ocean.cs32x15. The presently coded fix
14       is only consistent with real fresh water + nlfs.
15     - update results (output.txt) accordingly.
16    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
17    o AD_CONFIG.h file:
18     - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
19     - remove #include "AD_CONFIG.h" from all included OPTIONS files and
20       add it explicitly in each fortran src file where it is needed.
21       motivation: header file AD_CONFIG.h is generated/modified after "make depend"
22       thus introducing potentially wrong dependency; therefore, better to include
23       it only where it's really needed, and after any other included OPTIONS file
24       (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
25       or ALLOW_TANGENTLINEAR_RUN).
26    
27    checkpoint63p (2012/07/06)
28    o pkg/autodiff:
29      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
30      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
31        which are now read from new parameter file "data.autodiff" (inAdExact
32        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
33      - add file "data.autodiff" in all verification/*/input_ad/ directories.
34      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
35        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
36    o verification/tutorial_tracer_adjsens/
37      - add extra sub-verification which uses "SOM" advection scheme
38        (2nd Order-Moment Advection Scheme, Prather Limiter) with
39          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
40        and in data:
41          multiDimAdvection=.TRUE.,
42          tempAdvScheme=81,
43          saltAdvScheme=81,
44    o model/src:
45      - introduce ALLOW_BALANCE_RELAX which allow the removal
46       of the global mean of relaxation terms by setting
47       balanceThetaClimRelax and balanceSaltClimRelax
48      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
49       This case is now treated appropriately in seaice_growth.F
50    o pkg/seaice:
51      - do balanceEmPmR and balanceQnet based on the net fluxes
52        (SItflux) that enter the ocean+ice system rather than QNET
53        and EMPMR. Works best in real fresh water.
54      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
55        out of the diagnotics bloc, and stored in global arrays.
56    
57    checkpoint63o (2012/06/29)
58    o vertical mixing schemes:
59      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
60      - replace computation of density (in Function STATE1, opps_calc.F) by a call
61        to S/R FIND_RHO_SCALAR
62      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
63        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
64        affects output (vermix.ggl90) at truncation level.
65    o testreport:
66      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
67        (nSx,nSy) for the number of threads (from eedata.mth)
68    o model/src:
69      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
70        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
71    o verification/tutorial_tracer_adjsens/
72      - compile with ALLOW_CG2D_NSA
73      - run with nonlinFreeSurf=3
74      - update reference output_adm.txt
75    o tools/genmake2:
76      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
77        refine usePROFILES switching off (only when NetCDF is not available).
78    o verification (atmospheric set-up):
79      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
80    o pkg/profiles : refine profiles and files handling.
81    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
82    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
83      - changes to use model/src/the_main_loop.F rather than the ecco version
84        in ecco type adjoint runs.
85    o model/src:
86      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
87      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
88      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
89    o model/src:
90      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
91        update output of test experiment bottom_ctrl_5x5.
92    o pkg/generic_advdiff:
93      - implement vertical bi-harmonic diffusion (for now, only for T & S and
94        only explicitly).
95    o verification/bottom_ctrl_5x5/
96      update reference output (results changed quite some time ago,
97      not sure when; but new reference results look ok in terms of grdchk)
98    o verification/1D_ocean_ice_column/
99      For verification purposes, the exact adjoint rather than an approx.
100      should be used (e.g., to comare against F.D. or TLM).
101      removed autodiff_inadmode*_ad.F routines in code_ad/
102      Update results/ accordingly.
103    o pkg/cal:
104      - change cal_getdate.F so that output date is function of input time only
105        (less ambiguous, not mixed up with input iteration number).
106      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
107    o pkg/diagnostics:
108      - implement calendarDumps also for stats-diags
109      - implement calendarDumps also for snap-shot output (negative freq)
110      - for now, ignores calendarDumps if non-zero phase-lag.
111    
112    checkpoint63n (2012/06/04)
113    o model/src:
114      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
115        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
116      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
117        similar to calc_r_star.F); update results of experiment internal_wave and
118        tutorial_global_oce_in_p (affected @ truncation level).
119    o pkg/shelfice:
120      - add parameterisation of advective-diffusive flux into the ice shelf
121        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
122      - simply eps3/3a computation
123    o eesupp:
124     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
125       between tiles, just fill-in edges assuming locally periodic subdomain) and
126       add corresponding exchange subroutines (EXCH0);
127     - new CG-solver version (_EX0) for disconnected-tiles special case.
128    o model/src (CG-solvers):
129     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
130       (similar final residual output and max-Iter number as with standard version);
131     - allows to store and use lowest-residual solution (standard & _SR versions);
132     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
133     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
134    o eesup/src:
135     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
136       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
137    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
138    
139    checkpoint63m (2012/04/27)
140    o pkg/shelfice:
141     - account for partical cells in surface level below ice-shelf for hydrostatic
142       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
143    o ad test experiments:
144     - update and rename to "ad_optfile.local" local AD-optfile specific to a
145       particular adjoint verification experiment (in verification/*/code_ad/)
146    o pkg/seaice & pkg/exf:
147     - Part two of ECCO-CLIVAR code merges.
148       Completes merge of seaice area relax. code.
149       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
150       to be set in EXF_OPTIONS.h since this pkg controls its I/O
151       (and avoids second CPP option in SEAICE_OPTIONS.h)
152     - change default value of costIceStart & costIceEnd to a valid date.
153     - add snowPrecip to HSNOW in seaice_growth
154    o pkg/ptracers:
155     - move ptracers summary and setup check into separated S/R ; add a check for
156       valid PTRACERS_Iter0 value (error+stop or just warning).
157    o pkg/cal (+ pkg/ecco):
158     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
159       as input; and for AD, unless both are not differentiable (e.g., k index)).
160    o model/src:
161     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
162       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
163       temporary set to usingZCoords value (to be changed to F when using shelfice).
164     - hydrostatic pressure: implement partial cell near the surface also for
165       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
166       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
167    o pkg/ctrl/ctrl_init.F:
168     - add a formal parameter to s/r ctrl_init_rec to print
169       xx_$(ctrl_valiable)_file for easier debugging
170     - move call of cal_* routines into the if-block where they are really
171       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
172       to specify a startdate
173    o pkg/seaice:
174     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
175       global_ocean.cs32x15/code versions).
176     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
177       verification experiment global_ocean.cs32x15.seaice and update results.
178    o pkg/exf:
179     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
180       (according to useExfYearlyFields).
181    o pkg/cal:
182     - move calendar setting & summary (previously in cal_readparams.F) into new
183       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
184       length of the simulation is set (after SET_PARMS call); This is an attempt
185       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
186     - For safety: keep a record of pkg/cal parameter settings status
187               to allow to STOP if one pkg/cal S/R is called too early.
188     - add a stop in all basic pkg/cal subroutines if called before setting is done.
189     - modify cal_getdate.F: stop when nothing was returned;
190       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
191       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
192    
193    checkpoint63l (2012/04/04)
194    o pkg/bbl:
195      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
196        update global_with_exf output.yearly.txt file.
197    o pkg/cal:
198      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
199      - remove 2 unsused and very short (1 line only) functions ;
200      - remove unsused subroutines from AD-Diff list.
201    o model/src:
202      - start to implement clean wait to stop in initialization S/R (config_check.F,
203         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
204    o folowing PRINT_MESSAGE changes:
205      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
206    o pkg/bbl:
207      - modification so it can work with z*
208      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
209      - global_with_exf/input.yearly verification; changes output.yearly.txt
210    o eesupp/src:
211      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
212        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
213      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
214        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
215      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
216      - when using MPI, always set usingMPI=T ; set default accordingly and stop
217        if not consistent.
218      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
219        argument is zero (in case called within single-thread section).
220    o pkg/fizhi:
221        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
222        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
223    o pkg/exch2:
224      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
225        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
226      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
227        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
228        with bad ones coming from a not-yet-updated halo.
229        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
230    o pkg/frazil:
231        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
232        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
233    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
234    o verification/lab_sea
235      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
236      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
237      * nTimeSteps 3 -> 4
238      * changed reference output accordingly
239    o pkg/ctrl:
240      * fix ctrl_get_gen for xx_sst, xx_sss
241    o pkg/fizhi:
242      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
243        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
244      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
245        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
246        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
247    o pkg/gmredi:
248      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
249    o pkg/fizhi:
250      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
251        (old)aces open64 tuv test.
252    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
253    o pkg/mom_vecinv:
254      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
255        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
256        with non-lin free-surf).
257    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
258      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
259      some compilers (gfortran 4.6.0 on MacOS)
260    o momentum:
261      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
262        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
263        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
264    
265    checkpoint63k (2012/03/17)
266    o model/src:
267       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
268         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
269       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
270         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
271    o model/src: solve_*diagonal.F
272       - replace division with multiplication by inverse (similar to original version)
273         update output of AD exp. global_ocean.90x40x15.
274       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
275         to enable the use of the vectorized & differentiable solve_tridiagonal.F
276       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
277         vertical advection (to get solve_tridiagonal tested in AD mode).
278    o pkg/seaice: ECCO-CLIVAR merge:
279      1. seaice AREA relaxation
280         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
281         * runtime flag: SEAICE_tauAreaObsRelax
282      2. modified global mean cost imbalance code: CPP option
283          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
284    o another iteration on solve_*diagonal.F
285       Make choices independent of AUTODIFF
286       Default will be the adjoinable vectorized version.
287       Alternative choices are:
288       * non-adjoinable original version with low memory footprint:
289         #define SOLVE_DIAGONAL_LOWMEMORY
290       * still adjoinable but does not vectorize (k as inner-most loop):
291         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
292    o testreport
293     - add option to use a home made wrapper around "make"
294     - remove MITGCM_IEEE env. variable (no longer active)
295    o pkg/shelfice
296     - improve computation of friction velocity for velocity dependent
297       exchange coefficients: include velocities into SHELFICEBoundaryLayer
298       block to average velocities vertically
299     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
300    o Modify diagonal solvers, now three versions (upon request):
301      #ifndef SOLVE_DIAGONAL_AUTODIFF
302        1. default version (dating back a while ago)
303      #else /* def SOLVE_DIAGONAL_AUTODIFF */
304      # ifdef SOLVE_DIAGONAL_KINNER
305        2. adjoinable version with k-innermost loop (G. Forget)
306      # else
307        3. adjoinable vectorized version of 2.
308      # endif
309      #endif /* SOLVE_DIAGONAL_AUTODIFF */
310      All flags are currently set within routines, but could/should be moved to CPP-options.
311      Array bounds for 1. are as before, for 2.,3. cover the entire domain
312      (could be changed for 1. too).
313    o verification/lab_sea (fwd):
314      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
315        use 7 categories (except hb87), new solve4temp params (except salt_plume),
316        constant salinity (=4) or variable salinity (salt_plume) done through
317        SItracer.
318    o pkg/seaice:
319      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
320      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
321         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
322        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
323        SEAICE_freeze got retired) but already better than previously with
324        SEAICE_freeze=123456.7 deg.C;
325      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
326        (safer multi-threaded setting); always set SEAICEuseEVP;
327      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
328        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
329        stop if multiple specifications for the same coeff; make sure default
330        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
331    o pkg/obcs:
332      - allow to switch to upwind 1rst order advection scheme for the advective
333        flux computation at the open-boundary; disabled for adjoint built.
334    o pkg/ptracers:
335      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
336      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
337      - add parameter to decide when to start a tracer; use internal flag to
338        know which tracer to step-forward; switch this internal flag at the top
339        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
340        for adjoint built.
341    o pkg/seaice:
342      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
343      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
344      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
345    o pkg/ecco:
346      - fix writing of output file DiagnosCost_ClimSalt/Theta
347        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
348    o pkg/seaice:
349      - add missing initialisation of COR_ICE array in dynsolver.F
350      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
351        compiled either way, and is tested in all exps (multidim was only tested
352        in lab_sea ad before).
353      - cosmetic change to prepare for future addition of ITD. no change to results.
354        no defaults change.
355      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
356      - by lack of adequate verification experiments, I further used custom versions
357        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
358        should be correct.
359      - avoid recomputations in ad.
360    o array initialisation in adjoint mode:
361      1) pkg/mom_common/mom_calc_ke.F:
362        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
363        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
364        part this initialisation is gone, resulting in Floating Point Exception
365        (caught by open64 compiler with debug option).
366      2) model/src/convective_weights.F
367        set output convectCount over the full array range (instead of doing
368        an update): this fix a similar issue when called within recomputation (adjoint)
369        which could by-pass the initialisation (normally done in the caller S/R).
370    o pkg/seaice:
371      - final version of turbulent flux params, as agreed at MIT ice meet:
372           SEAICE_mcPheePiston (default is ~ 0.000875)
373           SEAICE_mcPheeTaper (default is 0.)
374           SEAICE_frazilFrac (defualt is 1.)
375           SEAICE_mcPheeStepFunc (default is false)
376      - changes results at trunction error level
377      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
378    o added pkg/frazil:
379      - see frazil_description.tex for details
380      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
381    o pkg/shelfice/shelfice_thermodynamics.F
382      - fix exponents for velocity dependent exchange coefficients: change
383        from 2/3(=0) to 0.66666666666666667
384      - move computation of velocity dependent exchange coefficients into
385        separate loop, so that it applies to both thermodynamics
386      - move some divisions by constants out of loops
387    
388    checkpoint63j (2012/02/16)
389    o pkg/seaice:
390      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
391      - SItracer:  added run time params, and allow coupling to ocn salinity.
392    o pkg/seaice: remove (almost) all divisions by constants within loops
393      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
394      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
395      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
396      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
397    o pkg/seaice :
398      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
399        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
400      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
401      - add permanent SItflux diag that corresponds to TFLUX but includes
402        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
403      - allow activation/testing of a fix for suspected missing term in
404        ocn-ice heat budget (to be confirmed). To test this, you want to
405        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
406        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
407      - no change in results, fwd or ad.
408    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
409      - switch to variable freezing point.
410           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
411      - bug fix : the sublimation term that was missing is now activated.
412           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
413      - bug fix : flooding sign term for SIsal0.NE.0.
414           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
415    o pkg/seaice:
416      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
417        is now the default, and the old default constant freezing point is recovered
418        with SEAICE_tempFrz0    = -1.96,
419             SEAICE_dTempFrz_dS = 0.,
420      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
421      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
422      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
423        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
424      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
425        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
426      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
427        seaice_growth r149 for legacy branch (no results change).
428      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
429        from I. Fenty).
430      - results did not change except for global_ocean.cs32x15, mostly due to the
431        switch to variable freezing point (see above item for detail).
432    o pkg/thsice:
433      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
434        seawater freezing in thsice_calc_thickn (not used).
435    o pkg/seaice: turbulent flux term specification via run time params.
436      - replace CPP switches with run time switches to facilitate testing
437      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
438                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
439      - added runtime parameter : SEAICEturbFluxFormula
440      - move Mcphee constants to SEAICE_PARAMS.h
441      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
442                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
443                 remove seaice_summary call (moved to seaice_init_fixed)
444      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
445        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
446      - seaice_summary.F : add missing report of read turbulent flux term set up
447                           and SITRACER.
448      - seaice_check.F : check range; inform and stop if retired CPPs are used
449                         (incl. SEAICE_AGE).
450      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
451             CPP switch, same computation as before for the different options.
452      - change results at the truncation level.
453    o pkg/seaice:
454      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
455        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
456        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
457      - update verification/*/input*/data.seaice:
458        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
459        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
460        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
461        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
462    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
463      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
464        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
465        difference in results only due to machine truncation.
466      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
467        MaykutPolySatVap; keep MIN_LWDOWN.
468      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
469      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
470        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
471  o pkg/salt_plume:  o pkg/salt_plume:
472     - isolate saltPlumeFlux array exch into a specific S/R called from    - isolate saltPlumeFlux array exch into a specific S/R called from
473       do_oceanic_phys.F      do_oceanic_phys.F
474     - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.    - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
475  o verification:  o verification:
476     - move untested set-up to MITgcm_contrib/verification_other.    - move untested set-up to MITgcm_contrib/verification_other.
477  o pkg/seaice:  o pkg/seaice:
478    - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.    - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
479  o pkg/seaice:  o pkg/seaice:
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