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revision 1.1562 by jmc, Sun Dec 25 22:29:37 2011 UTC revision 1.1663 by jmc, Fri Jun 1 18:49:32 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/exf (vertor interpolation):  o model/src:
8      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
9        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
10      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
11        similar to calc_r_star.F); update results of experiment internal_wave and
12        tutorial_global_oce_in_p (affected @ truncation level).
13    o pkg/shelfice:
14      - add parameterisation of advective-diffusive flux into the ice shelf
15        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
16      - simply eps3/3a computation
17    o eesupp:
18     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
19       between tiles, just fill-in edges assuming locally periodic subdomain) and
20       add corresponding exchange subroutines (EXCH0);
21     - new CG-solver version (_EX0) for disconnected-tiles special case.
22    o model/src (CG-solvers):
23     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
24       (similar final residual output and max-Iter number as with standard version);
25     - allows to store and use lowest-residual solution (standard & _SR versions);
26     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
27     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
28    o eesup/src:
29     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
30       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
31    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
32    
33    checkpoint63m (2012/04/27)
34    o pkg/shelfice:
35     - account for partical cells in surface level below ice-shelf for hydrostatic
36       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
37    o ad test experiments:
38     - update and rename to "ad_optfile.local" local AD-optfile specific to a
39       particular adjoint verification experiment (in verification/*/code_ad/)
40    o pkg/seaice & pkg/exf:
41     - Part two of ECCO-CLIVAR code merges.
42       Completes merge of seaice area relax. code.
43       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
44       to be set in EXF_OPTIONS.h since this pkg controls its I/O
45       (and avoids second CPP option in SEAICE_OPTIONS.h)
46     - change default value of costIceStart & costIceEnd to a valid date.
47     - add snowPrecip to HSNOW in seaice_growth
48    o pkg/ptracers:
49     - move ptracers summary and setup check into separated S/R ; add a check for
50       valid PTRACERS_Iter0 value (error+stop or just warning).
51    o pkg/cal (+ pkg/ecco):
52     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
53       as input; and for AD, unless both are not differentiable (e.g., k index)).
54    o model/src:
55     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
56       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
57       temporary set to usingZCoords value (to be changed to F when using shelfice).
58     - hydrostatic pressure: implement partial cell near the surface also for
59       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
60       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
61    o pkg/ctrl/ctrl_init.F:
62     - add a formal parameter to s/r ctrl_init_rec to print
63       xx_$(ctrl_valiable)_file for easier debugging
64     - move call of cal_* routines into the if-block where they are really
65       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
66       to specify a startdate
67    o pkg/seaice:
68     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
69       global_ocean.cs32x15/code versions).
70     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
71       verification experiment global_ocean.cs32x15.seaice and update results.
72    o pkg/exf:
73     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
74       (according to useExfYearlyFields).
75    o pkg/cal:
76     - move calendar setting & summary (previously in cal_readparams.F) into new
77       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
78       length of the simulation is set (after SET_PARMS call); This is an attempt
79       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
80     - For safety: keep a record of pkg/cal parameter settings status
81               to allow to STOP if one pkg/cal S/R is called too early.
82     - add a stop in all basic pkg/cal subroutines if called before setting is done.
83     - modify cal_getdate.F: stop when nothing was returned;
84       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
85       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
86    
87    checkpoint63l (2012/04/04)
88    o pkg/bbl:
89      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
90        update global_with_exf output.yearly.txt file.
91    o pkg/cal:
92      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
93      - remove 2 unsused and very short (1 line only) functions ;
94      - remove unsused subroutines from AD-Diff list.
95    o model/src:
96      - start to implement clean wait to stop in initialization S/R (config_check.F,
97         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
98    o folowing PRINT_MESSAGE changes:
99      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
100    o pkg/bbl:
101      - modification so it can work with z*
102      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
103      - global_with_exf/input.yearly verification; changes output.yearly.txt
104    o eesupp/src:
105      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
106        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
107      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
108        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
109      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
110      - when using MPI, always set usingMPI=T ; set default accordingly and stop
111        if not consistent.
112      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
113        argument is zero (in case called within single-thread section).
114    o pkg/fizhi:
115        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
116        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
117    o pkg/exch2:
118      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
119        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
120      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
121        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
122        with bad ones coming from a not-yet-updated halo.
123        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
124    o pkg/frazil:
125        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
126        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
127    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
128    o verification/lab_sea
129      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
130      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
131      * nTimeSteps 3 -> 4
132      * changed reference output accordingly
133    o pkg/ctrl:
134      * fix ctrl_get_gen for xx_sst, xx_sss
135    o pkg/fizhi:
136      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
137        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
138      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
139        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
140        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
141    o pkg/gmredi:
142      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
143    o pkg/fizhi:
144      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
145        (old)aces open64 tuv test.
146    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
147    o pkg/mom_vecinv:
148      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
149        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
150        with non-lin free-surf).
151    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
152      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
153      some compilers (gfortran 4.6.0 on MacOS)
154    o momentum:
155      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
156        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
157        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
158    
159    checkpoint63k (2012/03/17)
160    o model/src:
161       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
162         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
163       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
164         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
165    o model/src: solve_*diagonal.F
166       - replace division with multiplication by inverse (similar to original version)
167         update output of AD exp. global_ocean.90x40x15.
168       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
169         to enable the use of the vectorized & differentiable solve_tridiagonal.F
170       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
171         vertical advection (to get solve_tridiagonal tested in AD mode).
172    o pkg/seaice: ECCO-CLIVAR merge:
173      1. seaice AREA relaxation
174         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
175         * runtime flag: SEAICE_tauAreaObsRelax
176      2. modified global mean cost imbalance code: CPP option
177          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
178    o another iteration on solve_*diagonal.F
179       Make choices independent of AUTODIFF
180       Default will be the adjoinable vectorized version.
181       Alternative choices are:
182       * non-adjoinable original version with low memory footprint:
183         #define SOLVE_DIAGONAL_LOWMEMORY
184       * still adjoinable but does not vectorize (k as inner-most loop):
185         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
186    o testreport
187     - add option to use a home made wrapper around "make"
188     - remove MITGCM_IEEE env. variable (no longer active)
189    o pkg/shelfice
190     - improve computation of friction velocity for velocity dependent
191       exchange coefficients: include velocities into SHELFICEBoundaryLayer
192       block to average velocities vertically
193     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
194    o Modify diagonal solvers, now three versions (upon request):
195      #ifndef SOLVE_DIAGONAL_AUTODIFF
196        1. default version (dating back a while ago)
197      #else /* def SOLVE_DIAGONAL_AUTODIFF */
198      # ifdef SOLVE_DIAGONAL_KINNER
199        2. adjoinable version with k-innermost loop (G. Forget)
200      # else
201        3. adjoinable vectorized version of 2.
202      # endif
203      #endif /* SOLVE_DIAGONAL_AUTODIFF */
204      All flags are currently set within routines, but could/should be moved to CPP-options.
205      Array bounds for 1. are as before, for 2.,3. cover the entire domain
206      (could be changed for 1. too).
207    o verification/lab_sea (fwd):
208      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
209        use 7 categories (except hb87), new solve4temp params (except salt_plume),
210        constant salinity (=4) or variable salinity (salt_plume) done through
211        SItracer.
212    o pkg/seaice:
213      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
214      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
215         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
216        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
217        SEAICE_freeze got retired) but already better than previously with
218        SEAICE_freeze=123456.7 deg.C;
219      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
220        (safer multi-threaded setting); always set SEAICEuseEVP;
221      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
222        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
223        stop if multiple specifications for the same coeff; make sure default
224        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
225    o pkg/obcs:
226      - allow to switch to upwind 1rst order advection scheme for the advective
227        flux computation at the open-boundary; disabled for adjoint built.
228    o pkg/ptracers:
229      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
230      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
231      - add parameter to decide when to start a tracer; use internal flag to
232        know which tracer to step-forward; switch this internal flag at the top
233        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
234        for adjoint built.
235    o pkg/seaice:
236      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
237      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
238      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
239    o pkg/ecco:
240      - fix writing of output file DiagnosCost_ClimSalt/Theta
241        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
242    o pkg/seaice:
243      - add missing initialisation of COR_ICE array in dynsolver.F
244      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
245        compiled either way, and is tested in all exps (multidim was only tested
246        in lab_sea ad before).
247      - cosmetic change to prepare for future addition of ITD. no change to results.
248        no defaults change.
249      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
250      - by lack of adequate verification experiments, I further used custom versions
251        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
252        should be correct.
253      - avoid recomputations in ad.
254    o array initialisation in adjoint mode:
255      1) pkg/mom_common/mom_calc_ke.F:
256        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
257        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
258        part this initialisation is gone, resulting in Floating Point Exception
259        (caught by open64 compiler with debug option).
260      2) model/src/convective_weights.F
261        set output convectCount over the full array range (instead of doing
262        an update): this fix a similar issue when called within recomputation (adjoint)
263        which could by-pass the initialisation (normally done in the caller S/R).
264    o pkg/seaice:
265      - final version of turbulent flux params, as agreed at MIT ice meet:
266           SEAICE_mcPheePiston (default is ~ 0.000875)
267           SEAICE_mcPheeTaper (default is 0.)
268           SEAICE_frazilFrac (defualt is 1.)
269           SEAICE_mcPheeStepFunc (default is false)
270      - changes results at trunction error level
271      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
272    o added pkg/frazil:
273      - see frazil_description.tex for details
274      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
275    o pkg/shelfice/shelfice_thermodynamics.F
276      - fix exponents for velocity dependent exchange coefficients: change
277        from 2/3(=0) to 0.66666666666666667
278      - move computation of velocity dependent exchange coefficients into
279        separate loop, so that it applies to both thermodynamics
280      - move some divisions by constants out of loops
281    
282    checkpoint63j (2012/02/16)
283    o pkg/seaice:
284      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
285      - SItracer:  added run time params, and allow coupling to ocn salinity.
286    o pkg/seaice: remove (almost) all divisions by constants within loops
287      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
288      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
289      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
290      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
291    o pkg/seaice :
292      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
293        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
294      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
295      - add permanent SItflux diag that corresponds to TFLUX but includes
296        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
297      - allow activation/testing of a fix for suspected missing term in
298        ocn-ice heat budget (to be confirmed). To test this, you want to
299        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
300        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
301      - no change in results, fwd or ad.
302    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
303      - switch to variable freezing point.
304           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
305      - bug fix : the sublimation term that was missing is now activated.
306           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
307      - bug fix : flooding sign term for SIsal0.NE.0.
308           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
309    o pkg/seaice:
310      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
311        is now the default, and the old default constant freezing point is recovered
312        with SEAICE_tempFrz0    = -1.96,
313             SEAICE_dTempFrz_dS = 0.,
314      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
315      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
316      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
317        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
318      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
319        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
320      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
321        seaice_growth r149 for legacy branch (no results change).
322      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
323        from I. Fenty).
324      - results did not change except for global_ocean.cs32x15, mostly due to the
325        switch to variable freezing point (see above item for detail).
326    o pkg/thsice:
327      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
328        seawater freezing in thsice_calc_thickn (not used).
329    o pkg/seaice: turbulent flux term specification via run time params.
330      - replace CPP switches with run time switches to facilitate testing
331      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
332                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
333      - added runtime parameter : SEAICEturbFluxFormula
334      - move Mcphee constants to SEAICE_PARAMS.h
335      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
336                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
337                 remove seaice_summary call (moved to seaice_init_fixed)
338      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
339        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
340      - seaice_summary.F : add missing report of read turbulent flux term set up
341                           and SITRACER.
342      - seaice_check.F : check range; inform and stop if retired CPPs are used
343                         (incl. SEAICE_AGE).
344      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
345             CPP switch, same computation as before for the different options.
346      - change results at the truncation level.
347    o pkg/seaice:
348      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
349        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
350        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
351      - update verification/*/input*/data.seaice:
352        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
353        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
354        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
355        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
356    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
357      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
358        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
359        difference in results only due to machine truncation.
360      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
361        MaykutPolySatVap; keep MIN_LWDOWN.
362      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
363      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
364        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
365    o pkg/salt_plume:
366      - isolate saltPlumeFlux array exch into a specific S/R called from
367        do_oceanic_phys.F
368      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
369    o verification:
370      - move untested set-up to MITgcm_contrib/verification_other.
371    o pkg/seaice:
372      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
373    o pkg/seaice:
374      - seaice_solve4temp.F (keeping results unchanged):
375        * add 2 future run-time params to select which saturation vapor pressure
376          formula is used and how post-iteration fluxes are set.
377          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
378        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
379          the linearized expression to stay consistent with tsurf finding.
380      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
381        can be < 0.
382    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
383      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
384        conductive heat flux F_c , and add it explicitly when updating tsurf as
385        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
386        so that now F_ia has a consistent meaning through the entire routine.
387        This causes differences at truncation level: update output of fwd exp.
388        global_ocean.cs32x15.seaice.
389    o pkg/seaice:
390      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
391        of arrays, sign/direction of fluxes; no effect on results.
392      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
393        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
394        note: this should have been done before changing celsius2K default.
395      - to keep results unchanged, add back old value of celsius2K in verification
396        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
397      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
398        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
399        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
400        freezing temp is consistent with value in seaice_growth.F ; this causes
401        differences at machine truncation level: update lab_sea AD output (3/4).
402    o pkg/seaice:
403      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
404        and climsst/sss even when using seaice (to prevent calculation that might
405        use SST on land); does not affect any verification exp.
406      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
407        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
408    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
409      over land (non-legacy code)
410    o vectorize salt_plume package:
411      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
412      - this code computes plumebk everywhere (also over land), thus requires
413        code to avoid divisions by zero and catch the case of kLev=Nr.
414      - efficiency of salt_plume_frac is still sub-optimal
415    o tools (genmake2):
416      - fix makefile NAME specification (option: -makefile NAME) by adding
417        "-f $MAKEFILE" in few places where it was missing including makedepend
418        command (contribution from Paul).
419    
420    checkpoint63i (2012/01/24)
421    o model/src:
422      - add factorized versions of some EOS code to find_rho.F,
423        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
424    o model/src:
425      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
426      - change default celsius2K from 273.16 to 273.15
427      - to keep results unchanged, add back old value of celsius2K in verification
428        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
429         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
430    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
431      to make TAF generate vectorizable code
432    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
433       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
434       have flags that do this more efficiently.
435    o pkg/diagnostics/diagstats_calc.F
436      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
437    o pkg/obcs (with exch2):
438      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
439        and remove code (in obcs_readparms.F) which was based on EXCH of indices
440        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
441    o pkg/exf and seaice exp:
442      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
443        so that switching off area & heff advection flags does not affect results.
444      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
445      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
446        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
447        results of verification experiments: 1D_ocean_ice_column(fwd),
448        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
449        and offline_exf_seaice (all 4).
450    o pkg/seaice:
451      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
452        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
453      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
454        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
455        not multi-dim advection;
456      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
457        SHORTWAVE_HEATING #undef.
458    o optim: make Makefile more robust (?)
459    o pkg/obcs:
460      * fix treatment of obcs_read_pickup for TAF
461    o pkg/shelfice:
462      * add missing initialisation of num_shifwflx
463      * new adjoint verification exp. for isomip
464      * change Prandtl and Schmidt numbers from generic formulations
465        (in terms of model diffus. and visc.) to separate runtime
466        parameters, with Holland and Jenkins (1999) default values.
467    o pkg/exf (interpolation):
468      - extended input field (2 rows) near the N & S poles:
469        * fill in with the symetric value (when even Nb of data in longitude)
470        * add average value at the poles only for scalar quantities ; for vector
471          component interpolation, skip the averaging and keep duplicated values,
472          unless the 2 components have same location (uvInterp=T) in which case
473          interpolate the 2 components together using S/R EXF_INTERP_UV.
474      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
475        together: this allows to account properly for local orientation when
476        averaging at N & S pole.
477      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
478        exf-interpolation near N & S poles. Undef by default.
479      - add debug check/print on 1rst iter if debugLevel >=2.
480    o pkg/exf:
481      - change masking flags definition (no longer "parameter"), put them in
482        common block and set them in S/R EXF_INIT_FIXED.
483      - change recognized masking flag from s,u,v to c,w,s since the mask
484        to use (maskC,W,S) depends on position on model grid and has little to
485        do with scalar/vector difference; fix masking if using P-coordinates.
486      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
487        and update results of exp. global_with_exf (x2).
488      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
489    o pkg/obcs
490      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
491    o pkg/exf (interpolation):
492      - assume periodicity in X only if input field cover full longitude range.
493      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
494        and should vectorise).
495      - fix input lat of the 2 added row (in case we provide N.pole data).
496    
497    checkpoint63h (2011/12/30)
498    o pkg/seaice:
499      - change declaration of UVM from _RL to _RS in order to get B-grid
500        uIce,vIce monitor when _RS = real*4
501    o pkg/offline:
502      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
503      - compute vertical velocity if not read from file (switch on exactConserv
504        & staggerTimeStep);
505      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
506    o verification:
507      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
508        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
509        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
510      - update output of exp. global_ocean.cs32x15.viscA4 after changing
511        grid-file angles (used here for coriolis-3d);
512      - remove (or gzip) few files not needed to run fizhi-cs experiments.
513    o pkg/exf (vector interpolation):
514    - rotate vector component toward local grid-axis orientation using grid-angles    - rotate vector component toward local grid-axis orientation using grid-angles
515      (stored in GRID.h) instead of locally computed rotation angle; keep old code      (stored in GRID.h) instead of locally computed rotation angle; keep old code
516      available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).      available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
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