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revision 1.1563 by jmc, Mon Dec 26 22:27:23 2011 UTC revision 1.1641 by dimitri, Mon Apr 2 04:34:07 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/bbl:
8      - modification so it can work with z*
9      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
10      - global_with_exf/input.yearly verification; changes output.yearly.txt
11    o eesupp/src:
12      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
13        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
14      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
15        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
16      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
17      - when using MPI, always set usingMPI=T ; set default accordingly and stop
18        if not consistent.
19      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
20        argument is zero (in case called within single-thread section).
21    o pkg/fizhi:
22        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
23        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
24    o pkg/exch2:
25      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
26        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
27      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
28        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
29        with bad ones coming from a not-yet-updated halo.
30        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
31    o pkg/frazil:
32        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
33        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
34    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
35    o verification/lab_sea
36      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
37      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
38      * nTimeSteps 3 -> 4
39      * changed reference output accordingly
40    o pkg/ctrl:
41      * fix ctrl_get_gen for xx_sst, xx_sss
42    o pkg/fizhi:
43      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
44        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
45      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
46        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
47        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
48    o pkg/gmredi:
49      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
50    o pkg/fizhi:
51      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
52        (old)aces open64 tuv test.
53    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
54    o pkg/mom_vecinv:
55      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
56        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
57        with non-lin free-surf).
58    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
59      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
60      some compilers (gfortran 4.6.0 on MacOS)
61    o momentum:
62      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
63        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
64        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
65    
66    checkpoint63k (2012/03/17)
67    o model/src:
68       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
69         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
70       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
71         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
72    o model/src: solve_*diagonal.F
73       - replace division with multiplication by inverse (similar to original version)
74         update output of AD exp. global_ocean.90x40x15.
75       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
76         to enable the use of the vectorized & differentiable solve_tridiagonal.F
77       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
78         vertical advection (to get solve_tridiagonal tested in AD mode).
79    o pkg/seaice: ECCO-CLIVAR merge:
80      1. seaice AREA relaxation
81         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
82         * runtime flag: SEAICE_tauAreaObsRelax
83      2. modified global mean cost imbalance code: CPP option
84          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
85    o another iteration on solve_*diagonal.F
86       Make choices independent of AUTODIFF
87       Default will be the adjoinable vectorized version.
88       Alternative choices are:
89       * non-adjoinable original version with low memory footprint:
90         #define SOLVE_DIAGONAL_LOWMEMORY
91       * still adjoinable but does not vectorize (k as inner-most loop):
92         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
93    o testreport
94     - add option to use a home made wrapper around "make"
95     - remove MITGCM_IEEE env. variable (no longer active)
96    o pkg/shelfice
97     - improve computation of friction velocity for velocity dependent
98       exchange coefficients: include velocities into SHELFICEBoundaryLayer
99       block to average velocities vertically
100     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
101    o Modify diagonal solvers, now three versions (upon request):
102      #ifndef SOLVE_DIAGONAL_AUTODIFF
103        1. default version (dating back a while ago)
104      #else /* def SOLVE_DIAGONAL_AUTODIFF */
105      # ifdef SOLVE_DIAGONAL_KINNER
106        2. adjoinable version with k-innermost loop (G. Forget)
107      # else
108        3. adjoinable vectorized version of 2.
109      # endif
110      #endif /* SOLVE_DIAGONAL_AUTODIFF */
111      All flags are currently set within routines, but could/should be moved to CPP-options.
112      Array bounds for 1. are as before, for 2.,3. cover the entire domain
113      (could be changed for 1. too).
114    o verification/lab_sea (fwd):
115      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
116        use 7 categories (except hb87), new solve4temp params (except salt_plume),
117        constant salinity (=4) or variable salinity (salt_plume) done through
118        SItracer.
119    o pkg/seaice:
120      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
121      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
122         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
123        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
124        SEAICE_freeze got retired) but already better than previously with
125        SEAICE_freeze=123456.7 deg.C;
126      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
127        (safer multi-threaded setting); always set SEAICEuseEVP;
128      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
129        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
130        stop if multiple specifications for the same coeff; make sure default
131        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
132    o pkg/obcs:
133      - allow to switch to upwind 1rst order advection scheme for the advective
134        flux computation at the open-boundary; disabled for adjoint built.
135    o pkg/ptracers:
136      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
137      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
138      - add parameter to decide when to start a tracer; use internal flag to
139        know which tracer to step-forward; switch this internal flag at the top
140        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
141        for adjoint built.
142    o pkg/seaice:
143      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
144      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
145      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
146    o pkg/ecco:
147      - fix writing of output file DiagnosCost_ClimSalt/Theta
148        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
149    o pkg/seaice:
150      - add missing initialisation of COR_ICE array in dynsolver.F
151      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
152        compiled either way, and is tested in all exps (multidim was only tested
153        in lab_sea ad before).
154      - cosmetic change to prepare for future addition of ITD. no change to results.
155        no defaults change.
156      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
157      - by lack of adequate verification experiments, I further used custom versions
158        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
159        should be correct.
160      - avoid recomputations in ad.
161    o array initialisation in adjoint mode:
162      1) pkg/mom_common/mom_calc_ke.F:
163        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
164        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
165        part this initialisation is gone, resulting in Floating Point Exception
166        (caught by open64 compiler with debug option).
167      2) model/src/convective_weights.F
168        set output convectCount over the full array range (instead of doing
169        an update): this fix a similar issue when called within recomputation (adjoint)
170        which could by-pass the initialisation (normally done in the caller S/R).
171    o pkg/seaice:
172      - final version of turbulent flux params, as agreed at MIT ice meet:
173           SEAICE_mcPheePiston (default is ~ 0.000875)
174           SEAICE_mcPheeTaper (default is 0.)
175           SEAICE_frazilFrac (defualt is 1.)
176           SEAICE_mcPheeStepFunc (default is false)
177      - changes results at trunction error level
178      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
179    o added pkg/frazil:
180      - see frazil_description.tex for details
181      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
182    o pkg/shelfice/shelfice_thermodynamics.F
183      - fix exponents for velocity dependent exchange coefficients: change
184        from 2/3(=0) to 0.66666666666666667
185      - move computation of velocity dependent exchange coefficients into
186        separate loop, so that it applies to both thermodynamics
187      - move some divisions by constants out of loops
188    
189    checkpoint63j (2012/02/16)
190    o pkg/seaice:
191      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
192      - SItracer:  added run time params, and allow coupling to ocn salinity.
193    o pkg/seaice: remove (almost) all divisions by constants within loops
194      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
195      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
196      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
197      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
198    o pkg/seaice :
199      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
200        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
201      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
202      - add permanent SItflux diag that corresponds to TFLUX but includes
203        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
204      - allow activation/testing of a fix for suspected missing term in
205        ocn-ice heat budget (to be confirmed). To test this, you want to
206        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
207        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
208      - no change in results, fwd or ad.
209    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
210      - switch to variable freezing point.
211           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
212      - bug fix : the sublimation term that was missing is now activated.
213           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
214      - bug fix : flooding sign term for SIsal0.NE.0.
215           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
216    o pkg/seaice:
217      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
218        is now the default, and the old default constant freezing point is recovered
219        with SEAICE_tempFrz0    = -1.96,
220             SEAICE_dTempFrz_dS = 0.,
221      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
222      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
223      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
224        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
225      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
226        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
227      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
228        seaice_growth r149 for legacy branch (no results change).
229      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
230        from I. Fenty).
231      - results did not change except for global_ocean.cs32x15, mostly due to the
232        switch to variable freezing point (see above item for detail).
233    o pkg/thsice:
234      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
235        seawater freezing in thsice_calc_thickn (not used).
236    o pkg/seaice: turbulent flux term specification via run time params.
237      - replace CPP switches with run time switches to facilitate testing
238      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
239                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
240      - added runtime parameter : SEAICEturbFluxFormula
241      - move Mcphee constants to SEAICE_PARAMS.h
242      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
243                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
244                 remove seaice_summary call (moved to seaice_init_fixed)
245      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
246        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
247      - seaice_summary.F : add missing report of read turbulent flux term set up
248                           and SITRACER.
249      - seaice_check.F : check range; inform and stop if retired CPPs are used
250                         (incl. SEAICE_AGE).
251      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
252             CPP switch, same computation as before for the different options.
253      - change results at the truncation level.
254    o pkg/seaice:
255      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
256        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
257        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
258      - update verification/*/input*/data.seaice:
259        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
260        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
261        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
262        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
263    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
264      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
265        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
266        difference in results only due to machine truncation.
267      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
268        MaykutPolySatVap; keep MIN_LWDOWN.
269      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
270      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
271        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
272    o pkg/salt_plume:
273      - isolate saltPlumeFlux array exch into a specific S/R called from
274        do_oceanic_phys.F
275      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
276    o verification:
277      - move untested set-up to MITgcm_contrib/verification_other.
278    o pkg/seaice:
279      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
280    o pkg/seaice:
281      - seaice_solve4temp.F (keeping results unchanged):
282        * add 2 future run-time params to select which saturation vapor pressure
283          formula is used and how post-iteration fluxes are set.
284          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
285        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
286          the linearized expression to stay consistent with tsurf finding.
287      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
288        can be < 0.
289    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
290      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
291        conductive heat flux F_c , and add it explicitly when updating tsurf as
292        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
293        so that now F_ia has a consistent meaning through the entire routine.
294        This causes differences at truncation level: update output of fwd exp.
295        global_ocean.cs32x15.seaice.
296    o pkg/seaice:
297      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
298        of arrays, sign/direction of fluxes; no effect on results.
299      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
300        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
301        note: this should have been done before changing celsius2K default.
302      - to keep results unchanged, add back old value of celsius2K in verification
303        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
304      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
305        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
306        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
307        freezing temp is consistent with value in seaice_growth.F ; this causes
308        differences at machine truncation level: update lab_sea AD output (3/4).
309    o pkg/seaice:
310      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
311        and climsst/sss even when using seaice (to prevent calculation that might
312        use SST on land); does not affect any verification exp.
313      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
314        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
315    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
316      over land (non-legacy code)
317    o vectorize salt_plume package:
318      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
319      - this code computes plumebk everywhere (also over land), thus requires
320        code to avoid divisions by zero and catch the case of kLev=Nr.
321      - efficiency of salt_plume_frac is still sub-optimal
322    o tools (genmake2):
323      - fix makefile NAME specification (option: -makefile NAME) by adding
324        "-f $MAKEFILE" in few places where it was missing including makedepend
325        command (contribution from Paul).
326    
327    checkpoint63i (2012/01/24)
328    o model/src:
329      - add factorized versions of some EOS code to find_rho.F,
330        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
331    o model/src:
332      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
333      - change default celsius2K from 273.16 to 273.15
334      - to keep results unchanged, add back old value of celsius2K in verification
335        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
336         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
337    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
338      to make TAF generate vectorizable code
339    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
340       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
341       have flags that do this more efficiently.
342    o pkg/diagnostics/diagstats_calc.F
343      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
344    o pkg/obcs (with exch2):
345      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
346        and remove code (in obcs_readparms.F) which was based on EXCH of indices
347        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
348    o pkg/exf and seaice exp:
349      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
350        so that switching off area & heff advection flags does not affect results.
351      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
352      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
353        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
354        results of verification experiments: 1D_ocean_ice_column(fwd),
355        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
356        and offline_exf_seaice (all 4).
357    o pkg/seaice:
358      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
359        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
360      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
361        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
362        not multi-dim advection;
363      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
364        SHORTWAVE_HEATING #undef.
365    o optim: make Makefile more robust (?)
366    o pkg/obcs:
367      * fix treatment of obcs_read_pickup for TAF
368    o pkg/shelfice:
369      * add missing initialisation of num_shifwflx
370      * new adjoint verification exp. for isomip
371      * change Prandtl and Schmidt numbers from generic formulations
372        (in terms of model diffus. and visc.) to separate runtime
373        parameters, with Holland and Jenkins (1999) default values.
374    o pkg/exf (interpolation):
375      - extended input field (2 rows) near the N & S poles:
376        * fill in with the symetric value (when even Nb of data in longitude)
377        * add average value at the poles only for scalar quantities ; for vector
378          component interpolation, skip the averaging and keep duplicated values,
379          unless the 2 components have same location (uvInterp=T) in which case
380          interpolate the 2 components together using S/R EXF_INTERP_UV.
381      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
382        together: this allows to account properly for local orientation when
383        averaging at N & S pole.
384      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
385        exf-interpolation near N & S poles. Undef by default.
386      - add debug check/print on 1rst iter if debugLevel >=2.
387    o pkg/exf:
388      - change masking flags definition (no longer "parameter"), put them in
389        common block and set them in S/R EXF_INIT_FIXED.
390      - change recognized masking flag from s,u,v to c,w,s since the mask
391        to use (maskC,W,S) depends on position on model grid and has little to
392        do with scalar/vector difference; fix masking if using P-coordinates.
393      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
394        and update results of exp. global_with_exf (x2).
395      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
396    o pkg/obcs
397      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
398    o pkg/exf (interpolation):
399      - assume periodicity in X only if input field cover full longitude range.
400      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
401        and should vectorise).
402      - fix input lat of the 2 added row (in case we provide N.pole data).
403    
404    checkpoint63h (2011/12/30)
405    o pkg/seaice:
406      - change declaration of UVM from _RL to _RS in order to get B-grid
407        uIce,vIce monitor when _RS = real*4
408    o pkg/offline:
409      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
410      - compute vertical velocity if not read from file (switch on exactConserv
411        & staggerTimeStep);
412      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
413  o verification:  o verification:
414    - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)    - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
415      with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":      with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
# Line 11  o verification: Line 417  o verification:
417    - update output of exp. global_ocean.cs32x15.viscA4 after changing    - update output of exp. global_ocean.cs32x15.viscA4 after changing
418      grid-file angles (used here for coriolis-3d);      grid-file angles (used here for coriolis-3d);
419    - remove (or gzip) few files not needed to run fizhi-cs experiments.    - remove (or gzip) few files not needed to run fizhi-cs experiments.
420  o pkg/exf (vertor interpolation):  o pkg/exf (vector interpolation):
421    - rotate vector component toward local grid-axis orientation using grid-angles    - rotate vector component toward local grid-axis orientation using grid-angles
422      (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
423      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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