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revision 1.1577 by mlosch, Fri Jan 20 14:35:03 2012 UTC revision 1.1675 by heimbach, Mon Jun 25 19:25:41 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/tutorial_tracer_adjsens/
8      - compile with ALLOW_CG2D_NSA
9      - run with nonlinFreeSurf=3
10      - update reference output_adm.txt
11    o tools/genmake2:
12      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
13        refine usePROFILES switching off (only when NetCDF is not available).
14    o verification (atmospheric set-up):
15      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
16    o pkg/profiles : refine profiles and files handling.
17    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
18    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
19      - changes to use model/src/the_main_loop.F rather than the ecco version
20        in ecco type adjoint runs.
21    o model/src:
22      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
23      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
24      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
25    o model/src:
26      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
27        update output of test experiment bottom_ctrl_5x5.
28    o pkg/generic_advdiff:
29      - implement vertical bi-harmonic diffusion (for now, only for T & S and
30        only explicitly).
31    o verification/bottom_ctrl_5x5/
32      update reference output (results changed quite some time ago,
33      not sure when; but new reference results look ok in terms of grdchk)
34    o verification/1D_ocean_ice_column/
35      For verification purposes, the exact adjoint rather than an approx.
36      should be used (e.g., to comare against F.D. or TLM).
37      removed autodiff_inadmode*_ad.F routines in code_ad/
38      Update results/ accordingly.
39    o pkg/cal:
40      - change cal_getdate.F so that output date is function of input time only
41        (less ambiguous, not mixed up with input iteration number).
42      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
43    o pkg/diagnostics:
44      - implement calendarDumps also for stats-diags
45      - implement calendarDumps also for snap-shot output (negative freq)
46      - for now, ignores calendarDumps if non-zero phase-lag.
47    
48    checkpoint63n (2012/06/04)
49    o model/src:
50      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
51        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
52      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
53        similar to calc_r_star.F); update results of experiment internal_wave and
54        tutorial_global_oce_in_p (affected @ truncation level).
55    o pkg/shelfice:
56      - add parameterisation of advective-diffusive flux into the ice shelf
57        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
58      - simply eps3/3a computation
59    o eesupp:
60     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
61       between tiles, just fill-in edges assuming locally periodic subdomain) and
62       add corresponding exchange subroutines (EXCH0);
63     - new CG-solver version (_EX0) for disconnected-tiles special case.
64    o model/src (CG-solvers):
65     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
66       (similar final residual output and max-Iter number as with standard version);
67     - allows to store and use lowest-residual solution (standard & _SR versions);
68     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
69     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
70    o eesup/src:
71     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
72       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
73    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
74    
75    checkpoint63m (2012/04/27)
76    o pkg/shelfice:
77     - account for partical cells in surface level below ice-shelf for hydrostatic
78       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
79    o ad test experiments:
80     - update and rename to "ad_optfile.local" local AD-optfile specific to a
81       particular adjoint verification experiment (in verification/*/code_ad/)
82    o pkg/seaice & pkg/exf:
83     - Part two of ECCO-CLIVAR code merges.
84       Completes merge of seaice area relax. code.
85       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
86       to be set in EXF_OPTIONS.h since this pkg controls its I/O
87       (and avoids second CPP option in SEAICE_OPTIONS.h)
88     - change default value of costIceStart & costIceEnd to a valid date.
89     - add snowPrecip to HSNOW in seaice_growth
90    o pkg/ptracers:
91     - move ptracers summary and setup check into separated S/R ; add a check for
92       valid PTRACERS_Iter0 value (error+stop or just warning).
93    o pkg/cal (+ pkg/ecco):
94     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
95       as input; and for AD, unless both are not differentiable (e.g., k index)).
96    o model/src:
97     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
98       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
99       temporary set to usingZCoords value (to be changed to F when using shelfice).
100     - hydrostatic pressure: implement partial cell near the surface also for
101       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
102       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
103    o pkg/ctrl/ctrl_init.F:
104     - add a formal parameter to s/r ctrl_init_rec to print
105       xx_$(ctrl_valiable)_file for easier debugging
106     - move call of cal_* routines into the if-block where they are really
107       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
108       to specify a startdate
109    o pkg/seaice:
110     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
111       global_ocean.cs32x15/code versions).
112     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
113       verification experiment global_ocean.cs32x15.seaice and update results.
114    o pkg/exf:
115     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
116       (according to useExfYearlyFields).
117    o pkg/cal:
118     - move calendar setting & summary (previously in cal_readparams.F) into new
119       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
120       length of the simulation is set (after SET_PARMS call); This is an attempt
121       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
122     - For safety: keep a record of pkg/cal parameter settings status
123               to allow to STOP if one pkg/cal S/R is called too early.
124     - add a stop in all basic pkg/cal subroutines if called before setting is done.
125     - modify cal_getdate.F: stop when nothing was returned;
126       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
127       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
128    
129    checkpoint63l (2012/04/04)
130    o pkg/bbl:
131      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
132        update global_with_exf output.yearly.txt file.
133    o pkg/cal:
134      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
135      - remove 2 unsused and very short (1 line only) functions ;
136      - remove unsused subroutines from AD-Diff list.
137    o model/src:
138      - start to implement clean wait to stop in initialization S/R (config_check.F,
139         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
140    o folowing PRINT_MESSAGE changes:
141      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
142    o pkg/bbl:
143      - modification so it can work with z*
144      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
145      - global_with_exf/input.yearly verification; changes output.yearly.txt
146    o eesupp/src:
147      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
148        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
149      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
150        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
151      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
152      - when using MPI, always set usingMPI=T ; set default accordingly and stop
153        if not consistent.
154      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
155        argument is zero (in case called within single-thread section).
156    o pkg/fizhi:
157        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
158        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
159    o pkg/exch2:
160      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
161        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
162      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
163        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
164        with bad ones coming from a not-yet-updated halo.
165        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
166    o pkg/frazil:
167        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
168        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
169    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
170    o verification/lab_sea
171      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
172      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
173      * nTimeSteps 3 -> 4
174      * changed reference output accordingly
175    o pkg/ctrl:
176      * fix ctrl_get_gen for xx_sst, xx_sss
177    o pkg/fizhi:
178      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
179        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
180      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
181        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
182        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
183    o pkg/gmredi:
184      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
185    o pkg/fizhi:
186      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
187        (old)aces open64 tuv test.
188    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
189    o pkg/mom_vecinv:
190      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
191        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
192        with non-lin free-surf).
193    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
194      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
195      some compilers (gfortran 4.6.0 on MacOS)
196    o momentum:
197      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
198        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
199        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
200    
201    checkpoint63k (2012/03/17)
202    o model/src:
203       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
204         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
205       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
206         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
207    o model/src: solve_*diagonal.F
208       - replace division with multiplication by inverse (similar to original version)
209         update output of AD exp. global_ocean.90x40x15.
210       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
211         to enable the use of the vectorized & differentiable solve_tridiagonal.F
212       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
213         vertical advection (to get solve_tridiagonal tested in AD mode).
214    o pkg/seaice: ECCO-CLIVAR merge:
215      1. seaice AREA relaxation
216         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
217         * runtime flag: SEAICE_tauAreaObsRelax
218      2. modified global mean cost imbalance code: CPP option
219          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
220    o another iteration on solve_*diagonal.F
221       Make choices independent of AUTODIFF
222       Default will be the adjoinable vectorized version.
223       Alternative choices are:
224       * non-adjoinable original version with low memory footprint:
225         #define SOLVE_DIAGONAL_LOWMEMORY
226       * still adjoinable but does not vectorize (k as inner-most loop):
227         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
228    o testreport
229     - add option to use a home made wrapper around "make"
230     - remove MITGCM_IEEE env. variable (no longer active)
231    o pkg/shelfice
232     - improve computation of friction velocity for velocity dependent
233       exchange coefficients: include velocities into SHELFICEBoundaryLayer
234       block to average velocities vertically
235     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
236    o Modify diagonal solvers, now three versions (upon request):
237      #ifndef SOLVE_DIAGONAL_AUTODIFF
238        1. default version (dating back a while ago)
239      #else /* def SOLVE_DIAGONAL_AUTODIFF */
240      # ifdef SOLVE_DIAGONAL_KINNER
241        2. adjoinable version with k-innermost loop (G. Forget)
242      # else
243        3. adjoinable vectorized version of 2.
244      # endif
245      #endif /* SOLVE_DIAGONAL_AUTODIFF */
246      All flags are currently set within routines, but could/should be moved to CPP-options.
247      Array bounds for 1. are as before, for 2.,3. cover the entire domain
248      (could be changed for 1. too).
249    o verification/lab_sea (fwd):
250      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
251        use 7 categories (except hb87), new solve4temp params (except salt_plume),
252        constant salinity (=4) or variable salinity (salt_plume) done through
253        SItracer.
254    o pkg/seaice:
255      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
256      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
257         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
258        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
259        SEAICE_freeze got retired) but already better than previously with
260        SEAICE_freeze=123456.7 deg.C;
261      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
262        (safer multi-threaded setting); always set SEAICEuseEVP;
263      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
264        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
265        stop if multiple specifications for the same coeff; make sure default
266        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
267    o pkg/obcs:
268      - allow to switch to upwind 1rst order advection scheme for the advective
269        flux computation at the open-boundary; disabled for adjoint built.
270    o pkg/ptracers:
271      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
272      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
273      - add parameter to decide when to start a tracer; use internal flag to
274        know which tracer to step-forward; switch this internal flag at the top
275        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
276        for adjoint built.
277    o pkg/seaice:
278      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
279      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
280      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
281    o pkg/ecco:
282      - fix writing of output file DiagnosCost_ClimSalt/Theta
283        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
284    o pkg/seaice:
285      - add missing initialisation of COR_ICE array in dynsolver.F
286      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
287        compiled either way, and is tested in all exps (multidim was only tested
288        in lab_sea ad before).
289      - cosmetic change to prepare for future addition of ITD. no change to results.
290        no defaults change.
291      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
292      - by lack of adequate verification experiments, I further used custom versions
293        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
294        should be correct.
295      - avoid recomputations in ad.
296    o array initialisation in adjoint mode:
297      1) pkg/mom_common/mom_calc_ke.F:
298        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
299        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
300        part this initialisation is gone, resulting in Floating Point Exception
301        (caught by open64 compiler with debug option).
302      2) model/src/convective_weights.F
303        set output convectCount over the full array range (instead of doing
304        an update): this fix a similar issue when called within recomputation (adjoint)
305        which could by-pass the initialisation (normally done in the caller S/R).
306    o pkg/seaice:
307      - final version of turbulent flux params, as agreed at MIT ice meet:
308           SEAICE_mcPheePiston (default is ~ 0.000875)
309           SEAICE_mcPheeTaper (default is 0.)
310           SEAICE_frazilFrac (defualt is 1.)
311           SEAICE_mcPheeStepFunc (default is false)
312      - changes results at trunction error level
313      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
314    o added pkg/frazil:
315      - see frazil_description.tex for details
316      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
317    o pkg/shelfice/shelfice_thermodynamics.F
318      - fix exponents for velocity dependent exchange coefficients: change
319        from 2/3(=0) to 0.66666666666666667
320      - move computation of velocity dependent exchange coefficients into
321        separate loop, so that it applies to both thermodynamics
322      - move some divisions by constants out of loops
323    
324    checkpoint63j (2012/02/16)
325    o pkg/seaice:
326      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
327      - SItracer:  added run time params, and allow coupling to ocn salinity.
328    o pkg/seaice: remove (almost) all divisions by constants within loops
329      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
330      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
331      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
332      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
333    o pkg/seaice :
334      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
335        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
336      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
337      - add permanent SItflux diag that corresponds to TFLUX but includes
338        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
339      - allow activation/testing of a fix for suspected missing term in
340        ocn-ice heat budget (to be confirmed). To test this, you want to
341        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
342        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
343      - no change in results, fwd or ad.
344    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
345      - switch to variable freezing point.
346           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
347      - bug fix : the sublimation term that was missing is now activated.
348           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
349      - bug fix : flooding sign term for SIsal0.NE.0.
350           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
351    o pkg/seaice:
352      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
353        is now the default, and the old default constant freezing point is recovered
354        with SEAICE_tempFrz0    = -1.96,
355             SEAICE_dTempFrz_dS = 0.,
356      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
357      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
358      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
359        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
360      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
361        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
362      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
363        seaice_growth r149 for legacy branch (no results change).
364      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
365        from I. Fenty).
366      - results did not change except for global_ocean.cs32x15, mostly due to the
367        switch to variable freezing point (see above item for detail).
368    o pkg/thsice:
369      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
370        seawater freezing in thsice_calc_thickn (not used).
371    o pkg/seaice: turbulent flux term specification via run time params.
372      - replace CPP switches with run time switches to facilitate testing
373      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
374                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
375      - added runtime parameter : SEAICEturbFluxFormula
376      - move Mcphee constants to SEAICE_PARAMS.h
377      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
378                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
379                 remove seaice_summary call (moved to seaice_init_fixed)
380      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
381        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
382      - seaice_summary.F : add missing report of read turbulent flux term set up
383                           and SITRACER.
384      - seaice_check.F : check range; inform and stop if retired CPPs are used
385                         (incl. SEAICE_AGE).
386      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
387             CPP switch, same computation as before for the different options.
388      - change results at the truncation level.
389    o pkg/seaice:
390      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
391        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
392        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
393      - update verification/*/input*/data.seaice:
394        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
395        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
396        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
397        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
398    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
399      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
400        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
401        difference in results only due to machine truncation.
402      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
403        MaykutPolySatVap; keep MIN_LWDOWN.
404      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
405      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
406        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
407    o pkg/salt_plume:
408      - isolate saltPlumeFlux array exch into a specific S/R called from
409        do_oceanic_phys.F
410      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
411    o verification:
412      - move untested set-up to MITgcm_contrib/verification_other.
413    o pkg/seaice:
414      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
415    o pkg/seaice:
416      - seaice_solve4temp.F (keeping results unchanged):
417        * add 2 future run-time params to select which saturation vapor pressure
418          formula is used and how post-iteration fluxes are set.
419          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
420        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
421          the linearized expression to stay consistent with tsurf finding.
422      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
423        can be < 0.
424    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
425      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
426        conductive heat flux F_c , and add it explicitly when updating tsurf as
427        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
428        so that now F_ia has a consistent meaning through the entire routine.
429        This causes differences at truncation level: update output of fwd exp.
430        global_ocean.cs32x15.seaice.
431    o pkg/seaice:
432      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
433        of arrays, sign/direction of fluxes; no effect on results.
434      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
435        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
436        note: this should have been done before changing celsius2K default.
437      - to keep results unchanged, add back old value of celsius2K in verification
438        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
439      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
440        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
441        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
442        freezing temp is consistent with value in seaice_growth.F ; this causes
443        differences at machine truncation level: update lab_sea AD output (3/4).
444    o pkg/seaice:
445      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
446        and climsst/sss even when using seaice (to prevent calculation that might
447        use SST on land); does not affect any verification exp.
448      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
449        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
450    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
451      over land (non-legacy code)
452    o vectorize salt_plume package:
453      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
454      - this code computes plumebk everywhere (also over land), thus requires
455        code to avoid divisions by zero and catch the case of kLev=Nr.
456      - efficiency of salt_plume_frac is still sub-optimal
457    o tools (genmake2):
458      - fix makefile NAME specification (option: -makefile NAME) by adding
459        "-f $MAKEFILE" in few places where it was missing including makedepend
460        command (contribution from Paul).
461    
462    checkpoint63i (2012/01/24)
463    o model/src:
464      - add factorized versions of some EOS code to find_rho.F,
465        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
466    o model/src:
467      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
468      - change default celsius2K from 273.16 to 273.15
469      - to keep results unchanged, add back old value of celsius2K in verification
470        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
471         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
472    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
473      to make TAF generate vectorizable code
474    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
475       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
476       have flags that do this more efficiently.
477  o pkg/diagnostics/diagstats_calc.F  o pkg/diagnostics/diagstats_calc.F
478    - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact    - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
479  o pkg/obcs (with exch2):  o pkg/obcs (with exch2):
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