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revision 1.1572 by heimbach, Fri Jan 6 14:06:18 2012 UTC revision 1.1652 by jmc, Wed Apr 18 22:07:28 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 pkg/ptracers:
8     - move ptracers summary and setup check into separated S/R ; add a check for
9       valid PTRACERS_Iter0 value (error+stop or just warning).
10    o pkg/cal (+ pkg/ecco):
11     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
12       as input; and for AD, unless both are not differentiable (e.g., k index)).
13    o model/src:
14     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
15       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
16       temporary set to usingZCoords value (to be changed to F when using shelfice).
17     - hydrostatic pressure: implement partial cell near the surface also for
18       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
19       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
20    o pkg/ctrl/ctrl_init.F:
21     - add a formal parameter to s/r ctrl_init_rec to print
22       xx_$(ctrl_valiable)_file for easier debugging
23     - move call of cal_* routines into the if-block where they are really
24       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
25       to specify a startdate
26    o pkg/seaice:
27     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
28       global_ocean.cs32x15/code versions).
29     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
30       verification experiment global_ocean.cs32x15.seaice and update results.
31    o pkg/exf:
32     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
33       (according to useExfYearlyFields).
34    o pkg/cal:
35     - move calendar setting & summary (previously in cal_readparams.F) into new
36       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
37       length of the simulation is set (after SET_PARMS call); This is an attempt
38       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
39     - For safety: keep a record of pkg/cal parameter settings status
40               to allow to STOP if one pkg/cal S/R is called too early.
41     - add a stop in all basic pkg/cal subroutines if called before setting is done.
42     - modify cal_getdate.F: stop when nothing was returned;
43       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
44       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
45    
46    checkpoint63l (2012/04/04)
47    o pkg/bbl:
48      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
49        update global_with_exf output.yearly.txt file.
50    o pkg/cal:
51      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
52      - remove 2 unsused and very short (1 line only) functions ;
53      - remove unsused subroutines from AD-Diff list.
54    o model/src:
55      - start to implement clean wait to stop in initialization S/R (config_check.F,
56         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
57    o folowing PRINT_MESSAGE changes:
58      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
59    o pkg/bbl:
60      - modification so it can work with z*
61      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
62      - global_with_exf/input.yearly verification; changes output.yearly.txt
63    o eesupp/src:
64      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
65        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
66      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
67        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
68      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
69      - when using MPI, always set usingMPI=T ; set default accordingly and stop
70        if not consistent.
71      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
72        argument is zero (in case called within single-thread section).
73    o pkg/fizhi:
74        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
75        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
76    o pkg/exch2:
77      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
78        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
79      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
80        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
81        with bad ones coming from a not-yet-updated halo.
82        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
83    o pkg/frazil:
84        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
85        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
86    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
87    o verification/lab_sea
88      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
89      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
90      * nTimeSteps 3 -> 4
91      * changed reference output accordingly
92    o pkg/ctrl:
93      * fix ctrl_get_gen for xx_sst, xx_sss
94    o pkg/fizhi:
95      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
96        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
97      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
98        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
99        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
100    o pkg/gmredi:
101      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
102    o pkg/fizhi:
103      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
104        (old)aces open64 tuv test.
105    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
106    o pkg/mom_vecinv:
107      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
108        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
109        with non-lin free-surf).
110    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
111      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
112      some compilers (gfortran 4.6.0 on MacOS)
113    o momentum:
114      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
115        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
116        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
117    
118    checkpoint63k (2012/03/17)
119    o model/src:
120       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
121         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
122       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
123         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
124    o model/src: solve_*diagonal.F
125       - replace division with multiplication by inverse (similar to original version)
126         update output of AD exp. global_ocean.90x40x15.
127       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
128         to enable the use of the vectorized & differentiable solve_tridiagonal.F
129       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
130         vertical advection (to get solve_tridiagonal tested in AD mode).
131    o pkg/seaice: ECCO-CLIVAR merge:
132      1. seaice AREA relaxation
133         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
134         * runtime flag: SEAICE_tauAreaObsRelax
135      2. modified global mean cost imbalance code: CPP option
136          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
137    o another iteration on solve_*diagonal.F
138       Make choices independent of AUTODIFF
139       Default will be the adjoinable vectorized version.
140       Alternative choices are:
141       * non-adjoinable original version with low memory footprint:
142         #define SOLVE_DIAGONAL_LOWMEMORY
143       * still adjoinable but does not vectorize (k as inner-most loop):
144         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
145    o testreport
146     - add option to use a home made wrapper around "make"
147     - remove MITGCM_IEEE env. variable (no longer active)
148    o pkg/shelfice
149     - improve computation of friction velocity for velocity dependent
150       exchange coefficients: include velocities into SHELFICEBoundaryLayer
151       block to average velocities vertically
152     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
153    o Modify diagonal solvers, now three versions (upon request):
154      #ifndef SOLVE_DIAGONAL_AUTODIFF
155        1. default version (dating back a while ago)
156      #else /* def SOLVE_DIAGONAL_AUTODIFF */
157      # ifdef SOLVE_DIAGONAL_KINNER
158        2. adjoinable version with k-innermost loop (G. Forget)
159      # else
160        3. adjoinable vectorized version of 2.
161      # endif
162      #endif /* SOLVE_DIAGONAL_AUTODIFF */
163      All flags are currently set within routines, but could/should be moved to CPP-options.
164      Array bounds for 1. are as before, for 2.,3. cover the entire domain
165      (could be changed for 1. too).
166    o verification/lab_sea (fwd):
167      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
168        use 7 categories (except hb87), new solve4temp params (except salt_plume),
169        constant salinity (=4) or variable salinity (salt_plume) done through
170        SItracer.
171    o pkg/seaice:
172      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
173      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
174         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
175        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
176        SEAICE_freeze got retired) but already better than previously with
177        SEAICE_freeze=123456.7 deg.C;
178      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
179        (safer multi-threaded setting); always set SEAICEuseEVP;
180      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
181        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
182        stop if multiple specifications for the same coeff; make sure default
183        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
184    o pkg/obcs:
185      - allow to switch to upwind 1rst order advection scheme for the advective
186        flux computation at the open-boundary; disabled for adjoint built.
187    o pkg/ptracers:
188      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
189      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
190      - add parameter to decide when to start a tracer; use internal flag to
191        know which tracer to step-forward; switch this internal flag at the top
192        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
193        for adjoint built.
194    o pkg/seaice:
195      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
196      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
197      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
198    o pkg/ecco:
199      - fix writing of output file DiagnosCost_ClimSalt/Theta
200        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
201    o pkg/seaice:
202      - add missing initialisation of COR_ICE array in dynsolver.F
203      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
204        compiled either way, and is tested in all exps (multidim was only tested
205        in lab_sea ad before).
206      - cosmetic change to prepare for future addition of ITD. no change to results.
207        no defaults change.
208      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
209      - by lack of adequate verification experiments, I further used custom versions
210        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
211        should be correct.
212      - avoid recomputations in ad.
213    o array initialisation in adjoint mode:
214      1) pkg/mom_common/mom_calc_ke.F:
215        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
216        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
217        part this initialisation is gone, resulting in Floating Point Exception
218        (caught by open64 compiler with debug option).
219      2) model/src/convective_weights.F
220        set output convectCount over the full array range (instead of doing
221        an update): this fix a similar issue when called within recomputation (adjoint)
222        which could by-pass the initialisation (normally done in the caller S/R).
223    o pkg/seaice:
224      - final version of turbulent flux params, as agreed at MIT ice meet:
225           SEAICE_mcPheePiston (default is ~ 0.000875)
226           SEAICE_mcPheeTaper (default is 0.)
227           SEAICE_frazilFrac (defualt is 1.)
228           SEAICE_mcPheeStepFunc (default is false)
229      - changes results at trunction error level
230      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
231    o added pkg/frazil:
232      - see frazil_description.tex for details
233      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
234    o pkg/shelfice/shelfice_thermodynamics.F
235      - fix exponents for velocity dependent exchange coefficients: change
236        from 2/3(=0) to 0.66666666666666667
237      - move computation of velocity dependent exchange coefficients into
238        separate loop, so that it applies to both thermodynamics
239      - move some divisions by constants out of loops
240    
241    checkpoint63j (2012/02/16)
242    o pkg/seaice:
243      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
244      - SItracer:  added run time params, and allow coupling to ocn salinity.
245    o pkg/seaice: remove (almost) all divisions by constants within loops
246      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
247      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
248      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
249      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
250    o pkg/seaice :
251      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
252        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
253      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
254      - add permanent SItflux diag that corresponds to TFLUX but includes
255        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
256      - allow activation/testing of a fix for suspected missing term in
257        ocn-ice heat budget (to be confirmed). To test this, you want to
258        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
259        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
260      - no change in results, fwd or ad.
261    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
262      - switch to variable freezing point.
263           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
264      - bug fix : the sublimation term that was missing is now activated.
265           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
266      - bug fix : flooding sign term for SIsal0.NE.0.
267           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
268    o pkg/seaice:
269      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
270        is now the default, and the old default constant freezing point is recovered
271        with SEAICE_tempFrz0    = -1.96,
272             SEAICE_dTempFrz_dS = 0.,
273      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
274      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
275      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
276        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
277      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
278        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
279      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
280        seaice_growth r149 for legacy branch (no results change).
281      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
282        from I. Fenty).
283      - results did not change except for global_ocean.cs32x15, mostly due to the
284        switch to variable freezing point (see above item for detail).
285    o pkg/thsice:
286      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
287        seawater freezing in thsice_calc_thickn (not used).
288    o pkg/seaice: turbulent flux term specification via run time params.
289      - replace CPP switches with run time switches to facilitate testing
290      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
291                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
292      - added runtime parameter : SEAICEturbFluxFormula
293      - move Mcphee constants to SEAICE_PARAMS.h
294      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
295                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
296                 remove seaice_summary call (moved to seaice_init_fixed)
297      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
298        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
299      - seaice_summary.F : add missing report of read turbulent flux term set up
300                           and SITRACER.
301      - seaice_check.F : check range; inform and stop if retired CPPs are used
302                         (incl. SEAICE_AGE).
303      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
304             CPP switch, same computation as before for the different options.
305      - change results at the truncation level.
306    o pkg/seaice:
307      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
308        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
309        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
310      - update verification/*/input*/data.seaice:
311        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
312        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
313        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
314        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
315    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
316      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
317        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
318        difference in results only due to machine truncation.
319      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
320        MaykutPolySatVap; keep MIN_LWDOWN.
321      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
322      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
323        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
324    o pkg/salt_plume:
325      - isolate saltPlumeFlux array exch into a specific S/R called from
326        do_oceanic_phys.F
327      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
328    o verification:
329      - move untested set-up to MITgcm_contrib/verification_other.
330    o pkg/seaice:
331      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
332    o pkg/seaice:
333      - seaice_solve4temp.F (keeping results unchanged):
334        * add 2 future run-time params to select which saturation vapor pressure
335          formula is used and how post-iteration fluxes are set.
336          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
337        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
338          the linearized expression to stay consistent with tsurf finding.
339      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
340        can be < 0.
341    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
342      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
343        conductive heat flux F_c , and add it explicitly when updating tsurf as
344        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
345        so that now F_ia has a consistent meaning through the entire routine.
346        This causes differences at truncation level: update output of fwd exp.
347        global_ocean.cs32x15.seaice.
348    o pkg/seaice:
349      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
350        of arrays, sign/direction of fluxes; no effect on results.
351      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
352        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
353        note: this should have been done before changing celsius2K default.
354      - to keep results unchanged, add back old value of celsius2K in verification
355        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
356      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
357        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
358        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
359        freezing temp is consistent with value in seaice_growth.F ; this causes
360        differences at machine truncation level: update lab_sea AD output (3/4).
361    o pkg/seaice:
362      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
363        and climsst/sss even when using seaice (to prevent calculation that might
364        use SST on land); does not affect any verification exp.
365      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
366        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
367    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
368      over land (non-legacy code)
369    o vectorize salt_plume package:
370      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
371      - this code computes plumebk everywhere (also over land), thus requires
372        code to avoid divisions by zero and catch the case of kLev=Nr.
373      - efficiency of salt_plume_frac is still sub-optimal
374    o tools (genmake2):
375      - fix makefile NAME specification (option: -makefile NAME) by adding
376        "-f $MAKEFILE" in few places where it was missing including makedepend
377        command (contribution from Paul).
378    
379    checkpoint63i (2012/01/24)
380    o model/src:
381      - add factorized versions of some EOS code to find_rho.F,
382        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
383    o model/src:
384      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
385      - change default celsius2K from 273.16 to 273.15
386      - to keep results unchanged, add back old value of celsius2K in verification
387        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
388         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
389    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
390      to make TAF generate vectorizable code
391    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
392       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
393       have flags that do this more efficiently.
394    o pkg/diagnostics/diagstats_calc.F
395      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
396    o pkg/obcs (with exch2):
397      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
398        and remove code (in obcs_readparms.F) which was based on EXCH of indices
399        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
400    o pkg/exf and seaice exp:
401      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
402        so that switching off area & heff advection flags does not affect results.
403      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
404      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
405        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
406        results of verification experiments: 1D_ocean_ice_column(fwd),
407        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
408        and offline_exf_seaice (all 4).
409    o pkg/seaice:
410      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
411        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
412      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
413        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
414        not multi-dim advection;
415      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
416        SHORTWAVE_HEATING #undef.
417  o optim: make Makefile more robust (?)  o optim: make Makefile more robust (?)
418  o pkg/obcs:  o pkg/obcs:
419    * fix treatment of obcs_read_pickup for TAF    * fix treatment of obcs_read_pickup for TAF
420  o pkg/shelfice:  o pkg/shelfice:
421    * add missing initialisation of num_shifwflx    * add missing initialisation of num_shifwflx
422    * new adjoint verification exp. for isomip    * new adjoint verification exp. for isomip
423    * change Prandtl and Schmidt numbers from generic formulations    * change Prandtl and Schmidt numbers from generic formulations
424      (in terms of model diffus. and visc.) to separate runtime      (in terms of model diffus. and visc.) to separate runtime
425      parameters, with Holland and Jenkins (1999) default values.      parameters, with Holland and Jenkins (1999) default values.
426  o pkg/exf (interpolation):  o pkg/exf (interpolation):
427    - extended input field (2 rows) near the N & S poles:    - extended input field (2 rows) near the N & S poles:
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