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revision 1.1323 by jmc, Fri Oct 29 00:39:54 2010 UTC revision 1.1614 by jmc, Fri Mar 9 20:16:10 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/obcs:
8      - allow to switch to upwind 1rst order advection scheme for the advective
9        flux computation at the open-boundary; disabled for adjoint built.
10    o pkg/ptracers:
11      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
12      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
13      - add parameter to decide when to start a tracer; use internal flag to
14        know which tracer to step-forward; switch this internal flag at the top
15        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
16        for adjoint built.
17    o pkg/seaice:
18      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
19      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
20      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
21    o pkg/ecco:
22      - fix writing of output file DiagnosCost_ClimSalt/Theta
23        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
24    o pkg/seaice:
25      - add missing initialisation of COR_ICE array in dynsolver.F
26      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
27        compiled either way, and is tested in all exps (multidim was only tested
28        in lab_sea ad before).
29      - cosmetic change to prepare for future addition of ITD. no change to results.
30        no defaults change.
31      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
32      - by lack of adequate verification experiments, I further used custom versions
33        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
34        should be correct.
35      - avoid recomputations in ad.
36    o array initialisation in adjoint mode:
37      1) pkg/mom_common/mom_calc_ke.F:
38        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
39        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
40        part this initialisation is gone, resulting in Floating Point Exception
41        (caught by open64 compiler with debug option).
42      2) model/src/convective_weights.F
43        set output convectCount over the full array range (instead of doing
44        an update): this fix a similar issue when called within recomputation (adjoint)
45        which could by-pass the initialisation (normally done in the caller S/R).
46    o pkg/seaice:
47      - final version of turbulent flux params, as agreed at MIT ice meet:
48           SEAICE_mcPheePiston (default is ~ 0.000875)
49           SEAICE_mcPheeTaper (default is 0.)
50           SEAICE_frazilFrac (defualt is 1.)
51           SEAICE_mcPheeStepFunc (default is false)
52      - changes results at trunction error level
53      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
54    o added pkg/frazil:
55      - see frazil_description.tex for details
56      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
57    o pkg/shelfice/shelfice_thermodynamics.F
58      - fix exponents for velocity dependent exchange coefficients: change
59        from 2/3(=0) to 0.66666666666666667
60      - move computation of velocity dependent exchange coefficients into
61        separate loop, so that it applies to both thermodynamics
62      - move some divisions by constants out of loops
63    
64    checkpoint63j (2012/02/16)
65    o pkg/seaice:
66      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
67      - SItracer:  added run time params, and allow coupling to ocn salinity.
68    o pkg/seaice: remove (almost) all divisions by constants within loops
69      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
70      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
71      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
72      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
73    o pkg/seaice :
74      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
75        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
76      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
77      - add permanent SItflux diag that corresponds to TFLUX but includes
78        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
79      - allow activation/testing of a fix for suspected missing term in
80        ocn-ice heat budget (to be confirmed). To test this, you want to
81        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
82        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
83      - no change in results, fwd or ad.
84    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
85      - switch to variable freezing point.
86           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
87      - bug fix : the sublimation term that was missing is now activated.
88           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
89      - bug fix : flooding sign term for SIsal0.NE.0.
90           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
91    o pkg/seaice:
92      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
93        is now the default, and the old default constant freezing point is recovered
94        with SEAICE_tempFrz0    = -1.96,
95             SEAICE_dTempFrz_dS = 0.,
96      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
97      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
98      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
99        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
100      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
101        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
102      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
103        seaice_growth r149 for legacy branch (no results change).
104      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
105        from I. Fenty).
106      - results did not change except for global_ocean.cs32x15, mostly due to the
107        switch to variable freezing point (see above item for detail).
108    o pkg/thsice:
109      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
110        seawater freezing in thsice_calc_thickn (not used).
111    o pkg/seaice: turbulent flux term specification via run time params.
112      - replace CPP switches with run time switches to facilitate testing
113      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
114                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
115      - added runtime parameter : SEAICEturbFluxFormula
116      - move Mcphee constants to SEAICE_PARAMS.h
117      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
118                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
119                 remove seaice_summary call (moved to seaice_init_fixed)
120      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
121        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
122      - seaice_summary.F : add missing report of read turbulent flux term set up
123                           and SITRACER.
124      - seaice_check.F : check range; inform and stop if retired CPPs are used
125                         (incl. SEAICE_AGE).
126      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
127             CPP switch, same computation as before for the different options.
128      - change results at the truncation level.
129    o pkg/seaice:
130      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
131        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
132        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
133      - update verification/*/input*/data.seaice:
134        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
135        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
136        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
137        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
138    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
139      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
140        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
141        difference in results only due to machine truncation.
142      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
143        MaykutPolySatVap; keep MIN_LWDOWN.
144      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
145      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
146        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
147    o pkg/salt_plume:
148      - isolate saltPlumeFlux array exch into a specific S/R called from
149        do_oceanic_phys.F
150      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
151    o verification:
152      - move untested set-up to MITgcm_contrib/verification_other.
153    o pkg/seaice:
154      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
155    o pkg/seaice:
156      - seaice_solve4temp.F (keeping results unchanged):
157        * add 2 future run-time params to select which saturation vapor pressure
158          formula is used and how post-iteration fluxes are set.
159          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
160        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
161          the linearized expression to stay consistent with tsurf finding.
162      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
163        can be < 0.
164    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
165      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
166        conductive heat flux F_c , and add it explicitly when updating tsurf as
167        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
168        so that now F_ia has a consistent meaning through the entire routine.
169        This causes differences at truncation level: update output of fwd exp.
170        global_ocean.cs32x15.seaice.
171    o pkg/seaice:
172      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
173        of arrays, sign/direction of fluxes; no effect on results.
174      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
175        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
176        note: this should have been done before changing celsius2K default.
177      - to keep results unchanged, add back old value of celsius2K in verification
178        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
179      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
180        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
181        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
182        freezing temp is consistent with value in seaice_growth.F ; this causes
183        differences at machine truncation level: update lab_sea AD output (3/4).
184    o pkg/seaice:
185      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
186        and climsst/sss even when using seaice (to prevent calculation that might
187        use SST on land); does not affect any verification exp.
188      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
189        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
190    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
191      over land (non-legacy code)
192    o vectorize salt_plume package:
193      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
194      - this code computes plumebk everywhere (also over land), thus requires
195        code to avoid divisions by zero and catch the case of kLev=Nr.
196      - efficiency of salt_plume_frac is still sub-optimal
197    o tools (genmake2):
198      - fix makefile NAME specification (option: -makefile NAME) by adding
199        "-f $MAKEFILE" in few places where it was missing including makedepend
200        command (contribution from Paul).
201    
202    checkpoint63i (2012/01/24)
203    o model/src:
204      - add factorized versions of some EOS code to find_rho.F,
205        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
206    o model/src:
207      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
208      - change default celsius2K from 273.16 to 273.15
209      - to keep results unchanged, add back old value of celsius2K in verification
210        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
211         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
212    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
213      to make TAF generate vectorizable code
214    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
215       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
216       have flags that do this more efficiently.
217    o pkg/diagnostics/diagstats_calc.F
218      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
219    o pkg/obcs (with exch2):
220      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
221        and remove code (in obcs_readparms.F) which was based on EXCH of indices
222        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
223    o pkg/exf and seaice exp:
224      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
225        so that switching off area & heff advection flags does not affect results.
226      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
227      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
228        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
229        results of verification experiments: 1D_ocean_ice_column(fwd),
230        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
231        and offline_exf_seaice (all 4).
232    o pkg/seaice:
233      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
234        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
235      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
236        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
237        not multi-dim advection;
238      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
239        SHORTWAVE_HEATING #undef.
240    o optim: make Makefile more robust (?)
241    o pkg/obcs:
242      * fix treatment of obcs_read_pickup for TAF
243    o pkg/shelfice:
244      * add missing initialisation of num_shifwflx
245      * new adjoint verification exp. for isomip
246      * change Prandtl and Schmidt numbers from generic formulations
247        (in terms of model diffus. and visc.) to separate runtime
248        parameters, with Holland and Jenkins (1999) default values.
249    o pkg/exf (interpolation):
250      - extended input field (2 rows) near the N & S poles:
251        * fill in with the symetric value (when even Nb of data in longitude)
252        * add average value at the poles only for scalar quantities ; for vector
253          component interpolation, skip the averaging and keep duplicated values,
254          unless the 2 components have same location (uvInterp=T) in which case
255          interpolate the 2 components together using S/R EXF_INTERP_UV.
256      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
257        together: this allows to account properly for local orientation when
258        averaging at N & S pole.
259      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
260        exf-interpolation near N & S poles. Undef by default.
261      - add debug check/print on 1rst iter if debugLevel >=2.
262    o pkg/exf:
263      - change masking flags definition (no longer "parameter"), put them in
264        common block and set them in S/R EXF_INIT_FIXED.
265      - change recognized masking flag from s,u,v to c,w,s since the mask
266        to use (maskC,W,S) depends on position on model grid and has little to
267        do with scalar/vector difference; fix masking if using P-coordinates.
268      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
269        and update results of exp. global_with_exf (x2).
270      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
271    o pkg/obcs
272      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
273    o pkg/exf (interpolation):
274      - assume periodicity in X only if input field cover full longitude range.
275      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
276        and should vectorise).
277      - fix input lat of the 2 added row (in case we provide N.pole data).
278    
279    checkpoint63h (2011/12/30)
280    o pkg/seaice:
281      - change declaration of UVM from _RL to _RS in order to get B-grid
282        uIce,vIce monitor when _RS = real*4
283    o pkg/offline:
284      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
285      - compute vertical velocity if not read from file (switch on exactConserv
286        & staggerTimeStep);
287      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
288    o verification:
289      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
290        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
291        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
292      - update output of exp. global_ocean.cs32x15.viscA4 after changing
293        grid-file angles (used here for coriolis-3d);
294      - remove (or gzip) few files not needed to run fizhi-cs experiments.
295    o pkg/exf (vector interpolation):
296      - rotate vector component toward local grid-axis orientation using grid-angles
297        (stored in GRID.h) instead of locally computed rotation angle; keep old code
298        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
299    o pkg/seaice:
300      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
301        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
302    o pkg/PKG_OPTIONS.h files:
303      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
304        outside of the #ifdef ALLOW_THISPKG / #endif block.
305      - update verification/*/code/PKG_OPTIONS.h files.
306    o add a verification experiment (offline_exf_seaice/input.seaice) that test
307      the B-grid LSOR solver
308    o pkg/seaice: sort out emissivity and long wave radiation step 2:
309      - add emissivity for snow and ice as new run-time parameters
310        (unfortunately) that default to the corresponding exf values; this
311        changes results in most verification experiments so that for backward
312        compatibility these parameter have to be set explicitly to inconsistent
313        values (ugly);
314      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
315        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
316        until we agree how to handle this bug properly
317    o pkg/exf (interpolation):
318      - add a set of run-time param ({inputfield}_interpMethod), one for
319        each interpolated input field, to select the interpolation method
320        with a value of zero switching off the interpolation;
321      - print interpolation parameters to standard output;
322      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
323        (to use instead runoff_interpMethod=0 in data.exf).
324      - simplify default setting of interpolation parameters (for all fields,
325        set position to match model grid cell-center position, leading to trivial
326        interpolation in case of regular Lat-Lon grid) and fix for the case of
327        non-uniform delY.
328    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
329       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
330       this factor is absolutely required, because the lw exitance (= out-going
331       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
332       where the reflectivity rho = 1-emissivity for conservation reasons. Once
333       this is established, we can remove the CPP-Flag (if we want to).
334    o pkg/seaice:
335      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
336        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
337      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
338        what the name implies (and not emissivity*BoltzmannConstant), this means
339        the old default value of 5.5e-8 now means
340        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
341        S/R exf_readparms
342      - FV-discretization of the B-grid LSOR solver, turn on with
343        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
344        of the calling routine dynsolver, so that B and C-grid code look a
345        little more alike.
346      - fix index bugs in ostres.F (B-grid code)
347    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
348    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
349      default for SEAICE_emissivity, if useEXF; requires setting a wrong
350      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
351      backward compatiblity
352    o model/src: use sigmaR in calc_ivdc
353    
354    checkpoint63g (2011/12/16)
355    o pkg/seaice/seaice_growth.F:
356      fix heat conservation of the coupled ocean-seaice system.
357      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
358      solid vs liquid water treatment is resolved via QNET.
359    o pkg/seaice/seaice_growth.F:
360      add missing term for sublimation in saltFlux, which was breaking conservation.
361    o pkg/seaice/seaice_model.F:
362      Remove this patholigical case treatment in evolution branch,
363      where it is un-necessary and breaks conservation.
364      Update global_ocean.cs32x15/results accordingly for
365      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
366    o model/src:
367      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
368      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
369    o pkg/obcs:
370      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
371      tendency for temperature and salinity that is then applied to update
372      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
373      horizontal advection and diffusion contributions on the boundary (in
374      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
375      removing the mask in S/R timestep_tracer. The advantage of this approach is
376      that the updated tracer values include contributions from the surface
377      forcing and vertical diffusion.
378      This modification changes exp4.stevens because of vertical diffusion.
379    o model/src:
380      change non-curvilinear grid setting to also work with exch2 + blank tiles:
381      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
382        face dimensions.
383      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
384        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
385        and INI_SPHERICAL_POLAR_GRID.
386      change test-experiment global_ocean.90x40x15:
387      - split the domain in many more tiles (9x4 tiles of 10x10 each);
388      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
389      - update results of both test (std & dwnslp).
390    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
391       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
392    o model/src:
393      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
394        and fix initialisation when using sigma-coords.
395    o model/src:
396     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
397       to their current value at the beginning of forward_step.F": add a new run-time
398       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
399     - set doResetHFactors=T in the following test exp:
400        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
401        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
402        and tutorial_global_oce_in_p (nonLinFS in p)
403    o pkg/ecco
404      - added IES cost term
405    o verification/advect_xz
406      - scale down the depth by 1/100 (from 200 km to just 2.km)
407      - add secondary test using divergent flow, r-star and implicit vertical advection.
408      - add note (check_conserve_TS.txt) and matlab script to check global
409        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
410    o pkg/rbcs:
411      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
412    o pkg/obcs (Stevens BCs):
413      - fix various problems in the phase speed computations of the Stevens
414        boundary conditions:
415        - sign error for western and southern boundaries,
416        - time tendencies were underestimated by factor of dTracerLev and some just
417          zero (for multidim advection schemes) -> now estimate time tendencies
418          from difference between previous (n) time level and the one before (n-1);
419          this requires storing a field per tracer per boundary, also in the pickup
420          files.
421        - replace deltaTmom in cflMer/Zon computation with dTracerLev
422        - set default phase velocity to cflMer/Zon
423      - update verification experiment exp4.stevens
424    o pkg/generic_advdiff (implicit_r):
425      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
426        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
427      - fix implicit vertical diffusion or advection with NonLin FreeSurf
428        (was using current recip_hFacC instead of future recip_hFacC): set future
429        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
430        solver S/R ;
431      - fill diagnostics of vertical advective fluxes (computed from tendency)
432        when using implicit vert. advection;
433      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
434         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
435         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
436         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
437    o pkg/diagnostics:
438      - add diags for T & S tendency which goes through Adams-Bashforth.
439    
440    checkpoint63f (2011/11/30)
441    o pkg/obcs/obcs_calc_stevens.F:
442      - join some loops to reduce number of if-statements
443      - fix a bug in code for northern and southern boundaries.
444    o pkg/seaice/seaice_init_varia.F
445      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
446        caused zero ice-velocities for the B-grid code
447    o pkg/seaice/seaice_init_fixed.F
448      - fix a bug in the initialisation of the second metric terms
449        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
450      - this affects all seaice configurations with useCurviLinearGrid = .true.
451        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
452        = .true. (default)
453      - the only verification experiment affected is global_ocean.cs32x15:
454        icedyn, seaice, and seaice_dynmix (AD)
455    o pkg/thsice/thsice_diagnostics_state.F
456      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
457        not contain garbage that can lead to surprises in diagstats_calc.F
458    o model/src:
459      - move bi,bj loops inside INTEGR_CONTINUITY ;
460      - call INTEGR_CONTINUITY directly from forward_step.F
461        (previously called from momentum_correction_step.F)
462      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
463        forward_step.F and pkg/ecco/the_main_loop.F
464    o model/src/do_oceanic_phys.F:
465      - reset addMass to zero only if useICEFRONT ;
466      - separated k-loop for rhoInSitu calculation ;
467      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
468        and at constant T,S (= WdRHOdP);
469      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
470        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
471        transport of locally-referenced potential density);
472        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
473    o gluemnc:
474      - replace ncrcat with ncks when adding variables to *.glob.nc
475      - change the way variables without record dimensions are handled so that
476        files that have variables with and without record variables can be glued:
477        add a record dimension with a new unique name to be able to differentiate
478        between variable with and without a-prior record dimensions. Remove
479        this record dimension before adding the variable to the *.glob.nc file.
480        This procedure automatically works also for grid.*.nc files that do not
481        have any record dimension.
482    o verification/cpl_aim+ocn:
483      - generate new reference output on baudelaire (gfortran, mpich2) (previously
484        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
485    o pkg/obcs/obcs_calc_stevens.F:
486      - add code for northern and southern boundaries.
487      - reorder some loops to save some operations and so that drFBar can be scalar
488    o model/src:
489      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
490        truncation) and add diagnostics for Adams-Bashforth tendency increment.
491      - update test-exp. AD output:
492        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
493      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
494        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
495        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
496        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
497        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
498        tutorial_plume_on_slope.
499    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
500      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
501      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
502      does not even come with an F77 compiler anymore, this should not be
503      a limitation
504    
505    checkpoint63e (2011/11/06)
506    o pkg/seaice adjoint of LSR:
507      - substantially rework STORE dirs.
508      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
509        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
510        and only perform SOLV_MAX_FIXED adjoint iters.
511        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
512        always goes to same record, meaning that the last forward field will be
513        the one used in the adjoint - an approximation.
514      - now produces non-zero LSR-related gradients, and acceptable gradients for
515        An's zonal (x-z) test case (to be checked in)
516      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
517        (but these are screwed up by the thermodynamics in the first place);
518        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
519        output_adm.txt also reflects changes to seaice_lsr
520      - global_ocean.cs32x15:
521        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
522          (output_adm.seaice.txt was updated)
523        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
524          (output_adm.seaice_dynmix.txt)
525    o test-exp. exp4+stevens:
526      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
527    o pkg/seaice (lsr solver):
528      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
529        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
530      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
531      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
532        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
533      - compute (with new S/R) and print initial (+ free-driff sol. if available)
534        and final residual of linearised system.
535    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
536      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
537    o pkg/obcs: Stevens BCs (still only for east and west)
538      - fix Stevens BCs by using intermediate velocities of previous
539        time step as "baroclinic" contribution rather velocity of one grid cell
540        inside the boundaries; more consistent but makes the entire treatment
541        more complicated, requires new pickup files and two new S/Rs:
542        obcs_copy_uv_n and obcs_save_uv_n
543        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
544        (undefined by default)
545      - silently move computation of some grid factors into separate loops to
546        save some recomputations
547      - add a hack for non-linear free surface
548      - add a verification experiment to exp4 that tests this code
549    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
550    
551    checkpoint63d (2011/10/25)
552    o pkg/obcs + seaice-dynamics:
553      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
554        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
555        values (consistent with an implicit method).
556      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
557        return to older implementation (same results as before); note that none of
558        the "experimental" OBCS_SEAICE options are implemented in the new version.
559      - switch test exp. seaice_obcs to use new version (update output).
560    o pkg/seaice:
561      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
562      - add parenthesis in Water-Ice drag calculations (evp & lsr);
563      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
564        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
565      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
566        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
567    o pkg/layers:
568      - Include potential density as new coordinate (Thanks to David Munday)
569    o pkg/dic:
570      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
571        carbonate computation/output to CALC_PCO2_APPROX
572    o pkg/generic_advdiff
573      - make TAF generate code that vectorizes:
574        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
575    o model/src:
576      - improve vectorization also for adjoint code of
577        solve_tridiagonal and solve_pentadiagonal. As this requires up to
578        5 new 3D-fields, this code is only turned on for the combination of
579        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
580        for singular matrix check (only for TARGET_NEC_SX).
581      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
582        ALLOW_AUTODIFF. This flag now needs to be set outside of
583        solve_tri/pentadiagonal.F
584    o pkg/exf:
585      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
586        optional namelist EXF_NML_OBCS).
587      - add many debug-print (to trace down where pkg/cal error msg comes from)
588    o pkg/mom_vecinv/mom_vi_hdissip.F
589      - rearrange loops so that vectorization is improved and in particular
590        the adjoint routine vectorizes. The code is a little longer now, but I
591        think easier to read.
592        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
593    o pkg/seaice:
594      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
595    o pkg/exch2:
596      - alternative code (without tile x tile matrix) for cumulated (global) sum;
597        used as default; keep using matrix version in adjustment.cs-32x32x1.
598    o tools/build_options:
599      - after merging some MPI and/or multi-threads specific optfiles so that
600        the modified default optfile support both built (using genmake2 -mpi
601        for the MPI built, using genmake2 -omp for OpenMP built),
602        move now obsolete optfiles to tools/build_options/unsupported/
603       (add copy of email sent to support list in doc/optfiles_changes.txt)
604    
605    checkpoint63c (2011/09/28)
606    o pkg/ebm:
607      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
608        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
609    o pkg/seaice (SItracer pickup)
610    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
611      To be done:
612      - thorough testing of missing fields in S/R seaice_read_pickup
613      - thorough matching between generic tracers and specific fields used
614        (e.g. volume-weighted age, area-weighted age, salinity, ...)
615    o pkg/grdchk:
616      - all procs calculate and print finite-difference gradient (for testreport)
617      - change description output used by testreport;
618      - AD testing: also compare and report Finite-difference gradient;
619        => update all output_adm*.txt
620    o test exp. global_ocean_ebm:
621      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
622        and turn on exactConserve; update (fwd) output.
623    o pkg/seaice (LSR):
624      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
625      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
626        * identical results with non-CS topology (but save up to half of EXCH calls)
627        * no much changes in cs-32 verification tests since no ice at face edges
628         (differences due to convergence criteria, since nb of iterations changed)
629        * expect some differences on lat-lon-cap grid.
630        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
631    o pkg/exch2:
632      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
633        many tiles); until alternative coding is added, just add a stop.
634    o pkg/kpp:
635      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
636        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
637    o optfiles:
638      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
639        into corresponding standard one, which now support different build:
640        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
641      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
642    o pkg/obcs (seaice):
643      - add missing EXCH for uIce,vIce after applying OBCS;
644      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
645        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
646        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
647      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
648      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
649        and eedata.mth for MPI and mutlti-threaded testing.
650    o pkg/flt:
651      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
652      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
653      - fix pickup and trajectories + profiles output with multi-threads;
654      - add parameter to select group of fields to write along trajectory and
655        profile (default unchanged);
656      - only call PORT_RAND* function when flt_noise <> 0;
657      - add multi-threaded test for verification exp. flt_example.
658    o eesupp/src:
659      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
660      - USE_OMP_THREADING: check that number of threads (from eedata) matches
661        actual number (from env.var. setting).
662    o pkg/ebm:
663      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
664      - add multi-threaded test for verification exp. global_ocean_ebm
665    
666    checkpoint63b (2011/08/29)
667    o pkg/ebm:
668      - fix sign of runoff;
669      - update directly forcing fields (Qnet,EmPmR) to use standard
670        external_forcing_surf.F (remove ebm_forcing_surf.F);
671      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
672      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
673        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
674      - update global_ocean_ebm parameters file data and update output (fwd+ad).
675    o verification/matrix_example:
676      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
677        MPI and mutlti-threaded testing.
678    o pkg/matrix:
679      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
680      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
681      - fix for multi-threaded (remove DATA statement);
682      - use standard DIFFERENT_MULTIPLE function;
683      - add MATRIX_OPTIONS.h
684    o verification/matrix_example:
685       To allow to split the domain in several tiles, change the domain size
686        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
687        Western side) of land points.
688    o (*_)write_pickup:
689      - fix few bugs in mypackage_read/write_pickup.F
690      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
691        array of length 1 (was caught by compiler syntax-check).
692    o pkg/diagnostics (velocity potential solver):
693      - fix initialisation of main diagonal matrix (for overlap values)
694    o tools/build_options:
695      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
696        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
697      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
698        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
699        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
700        and use "-devel" testreport option for standard testing on baudelaire.
701    o pkg/grdchk:
702      - Assume that all gradient-check position are within the same tile
703        corresponding to global indices (iGloTile,jGloTile) and that
704        positions (i,j indices or nbeg) are local to this tile;
705      - set tile local-indices and proc. number according to tile global-indices;
706      - remove grdchkwhichproc from namelist (retired param);
707      - send adjoint gradient to all procs so that all procs print it to STDOUT;
708      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
709    o adding package bbl (Bottom Boundary Layer)
710      description in MITgcm/pkg/bbl/bbl_description.tex
711      example/test experiment in MITgcm_contrib/bbl
712    o adjoint verifications
713      - changed 5 experiments to multi-tiles
714        * global_ocean.90x40x15
715        * obcs_ctrl
716        * offline_exf_seaice
717        * tutorial_dic_adjoffline
718        * tutorial_tracer_adjsens
719        changed reference output for those that crossed tile boundaries
720        (changed choices of gradient check positions)
721      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
722      - temporary bug fix in grdchk_loc.F for obcs
723    o genmake2 & testreport
724      - add target "obj" (just for OBJFILES files) to Makefile;
725      - add option to specify FEXTRAFLAGS on command line.
726    o pkg/mypackage:
727      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
728    
729    checkpoint63a (2011/08/02)
730    o pkg/diagnostics (velocity potential):
731      - fix velocity-potential calculation when using OBCS: balance net inflow
732        at each level (new S/R OBCS_DIAG_BALANCE).
733      - fix some of the problems with OBCS in stream-function calculation.
734    o pkg/exf/exf_readparms.F
735      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
736        EXF_NML_OBCS) more consistent, so that you need not have these lists
737        in data.exf when they are not used.
738    o optim/optim_readdata.F:
739      - add some output about obcs variables that might help debugging
740      - add a check about nvarlength
741    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
742    o pkg/diagnostics (velocity potential):
743      - fix mask for OBCS (still problems in stream-function with OBCS);
744      - add specific parameter (default = main code CG2D params) for solver;
745      - in case of poor convergence, use solution corresponding to lowest residual.
746    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
747      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
748      and should be avoided where possible.
749    o model/src (rStar):
750      - include r* effect on reference-state (PhiRef) in totPhiHyd
751        (so that it's really the potential anomaly at the cell center);
752        affect solution only if z* with full pressure in EOS.
753      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
754        update output (because of z* in totPhiHyd and viscA4 changes);
755      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
756        @ constant r) until interpolation at constant r is implemented.
757    o pkg/diagnostics
758      - fix RCENTER diagnostics in case cell center is not at interface middle
759    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
760      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
761      that THETA and SALT are "conservative temperature" and "absolute
762      salinity"
763    o pkg/ctrl
764      - fix computation of endrec in s/r ctrl_init_rec
765      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
766    o pkg/seaice/seaice_growth.F
767      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
768        remove then obsolete STORE directives
769      - fix STORE directives for tice and tices, so that only the
770        appropriate part of the fields are stored (and not the entire
771        field); update global_ocean.cs32x15.seaice AD output.
772      - cosmetic changes: adjust CPP flags and indentation for better
773        legibilty
774    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
775      Chris Wilson)
776    o pkg/gmredi:
777       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
778       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
779    
780    checkpoint63  (2011/07/11)
781    o pkg/exch2:
782     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
783     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
784       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
785       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
786    o pkg/diagnostics:
787     - deal with pairs of post-processed diags which are computed together; in
788       particular, re-order list of diags within 1 file to save 2nd computation.
789     - add S/R to compute velocity stream-function (called after velocity-potential
790       calculation) from divergence free transport -> new diagnostics "PsiVEL".
791     - add parameter to select grid-point location where PsiVEL == 0.
792    o eesupp/src:
793       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
794       (specific S/R needed with exch2 topology - for now, just print an error msg)
795    o pkg/shelfice
796     - Implement friction velocity-dependent transfer coefficients following
797       Holland and Jenkins, JPO, 1999
798       Original code by M. Losch with small modifs.
799       Enable with CPP option SHI_ALLOW_GAMMAFRICT
800       and runtime flag SHELFICEuseGammaFrict
801    o verification lab_sea & global_ocean.cs32x15:
802     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
803       does not miss some dependencies (but is slower) and also works with many files
804       (default makedepend limitation for AD built).
805     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
806    o pkg/diagnostics:
807     - add run-time parameter "useMissingValue" (def=False) to fill land-point
808        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
809       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
810     - Extend the use of "missing_value" setting from data.diagnostics for the case
811       of counter-diagnostics (where fraction-weight is zero). This applies both to
812       MNC and MDS output files.
813    o pkg/seaice/seaice_growth.F:
814      - add 'a priori' cap of latent heat flux based on actual mass considerations
815        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
816        non-legacy seaice_solve4temp.
817      - add diagnostic of the residual sublimation freshwater flux (the freshwater
818        flux taken from the ocean if the total actual latent heat fluxes exceed
819        the maximum)
820      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
821       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
822      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
823       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
824      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
825      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
826    o verification 1D_ocean_ice_column:
827       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
828       update results
829    o pkg/diagnostics:
830     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
831       which are not filled-up but computed from other diags ; In this case, the mate
832       diag points to the primary (filled-up) diag to used for post processing.
833     - Update Velocity-potential computation using post-processed diag framework.
834     ==> Change the ordering of fields and time-periods in MDS output file
835       when using periodic averaging: now writes one time record with the full set
836       of fields for this time period, then the next time reccord (it used to be
837       one field with the full set of time records then the next field).
838         Note: this is now similar to NetCDF (MNC) output file. <==
839    
840    checkpoint62z (2011/06/21)
841    o adjoint monitor:
842     - Add adjoint monitor output for packages exf, seaice
843       and update relevant testreport output
844    o pkg/seaice:
845     - re-order diags inits so that they appear in order in available_diagnostics.log
846     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
847       area/heff/hsnow preceeding thermodynamic growth/melt.
848     - modified diag: SIdA; output actual effect, as the description states.
849     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
850     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
851       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
852        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
853     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
854     - added diagnostics for seaice generic tracers (SItr*).
855     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
856     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
857     I. Fenty: 18-Jun-2011:
858     Minor changes to seaice package:
859     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
860        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
861       - Differentiated "regularization variables" from "floor variables"
862        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
863        * hiceMin became SEAICE_hice_reg (old hiceMin)
864          (with _reg meaning regularization variable)
865       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
866        so as to ensure energy conservation when going between phases
867      - A22 was not used anywhere
868     2) Changed regularization procedure for heffActual and hsnowActual to ensure
869        well-boundedness and smooth adjoint in seaice_growth.F
870     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
871        because the old regularization always set heffActual >= 0.05 cm
872     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
873        on AREA when HEFF > 0.
874      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
875        requiring that DISABLE_AREA_FLOOR *not* be defined
876     Affected verifications:
877      - 1D_ocean_ice_column (output.txt output_adm.txt)
878      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
879    o pkg/diagnostics:
880      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
881      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
882        (was _RL, now integer) with option = 0 to retrieve all levels.
883      - add pieces of code to compute velocity potential at each level (new diagnostics
884        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
885        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
886      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
887        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
888        and in diagnostics_fract_fill.F (do not need a valid pointer for the
889        diagnostics counter-mate); check that definition of counter-diagnostic
890        includes a valid counter-mate (in diagnostics_set_levels.F).
891    o model/src (rStar):
892      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
893        affect solution only if z* with full pressure in EOS;
894        update output of test-exp global_ocean.90x40x15.
895    o pkg/seaice:
896      - introduce siEps=1e-5 parameter
897      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
898      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
899      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
900        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
901        as well as ice cover age and ridging index (attached to AREA).
902        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
903        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
904        Up to SItrMaxNum=3 tracers can be used simultaneously.
905    o pkg/salt_plume:
906      -introduce SPsalFRAC run time parameter that sets the fraction of the
907       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
908       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
909    o model debug options:
910      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
911        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
912      - Refine debug-msg printing selection (3 new levels):
913        debugMode  : controls printing of debug messages (sequence of S/R calls).
914        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
915         debLevZero =  0 ; /* level of disabled aux. msg printing */
916         debLevA =  1 ; /* level of minimum  aux. msg printing */
917         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
918         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
919         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
920         debLevE =  5 ; /* level of extensive debug printing */
921        New debugLevel default: with default debugMode value (=F),
922          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
923          and if debugMode=T, default debugLevel = 4 (debLevD).
924        Relation with previous settings:
925         debLevB (=2) corresponds to former debLevA (=1)
926         debLevD (=4) corresponds to former debLevB (=2)
927        Note:
928         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
929         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
930            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
931      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
932        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
933    o pkg/obcs:
934      - change OBCSfixTopo default from True to False (should not change the results);
935        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
936    o pkg/thsice:
937      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
938        2nd layer seaice sublimation (unlikely to happen)
939      - use Interior mask for OBCS in thsice_advection.F (similar to what is
940        done in gad_advection & seaice_advection).
941    o adjoint:
942      bug fix spotted by Gael Forget:
943      seaice_advection and thsice_advection still had
944      legacy CPP options to avoid CS corner updates for adjoint
945    o pkg/seaice:
946      => Change some of the defaults (2011/05/29):
947         - change SEAICEuseFluxForm default (from False to True)
948         - change DIFF1 default (from 0.004 m/s to 0. m/s)
949         And print warnings if DIFF1 is not set in data.seaice and centered
950          avection scheme is used without any diffusion.
951      also:
952      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
953      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
954      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
955        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
956        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
957      update results of test exp.:
958         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
959             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
960             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
961         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
962         seaice_obcs: output (SEAICEuseFluxForm=T)
963      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
964          for standard fwd & AD lab_sea tests (to keep the same output).
965    o pkg/seaice/seaice_growth.F:
966      - use Ian Fenty's capping formulas for actual ice
967      thickness thoughout EVOLUTION branch.
968      - put treatment pathological case #2) in CPP brackets
969      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
970      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
971    o pkg/seaice:
972      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
973      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
974      also pass fac as a param, which can be 1. (to update the tendency
975      field) or the time step (to update the field itself).
976      - seaice_advdiff.F: for multidim, call seaice_diffusion with
977      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
978      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
979      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
980      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
981    o pkg/seaice:
982      diffusion with centered advection scheme (diffus.F & advect.F):
983      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
984        to just compute the laplacian of input-field.
985      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
986      - fix flux-form version in diffus.F to conserve tracer.
987      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
988       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
989    
990    checkpoint62y (2011/05/26)
991    o pkg/seaice:
992     - seaice_growth.F : in EVOLUTION branch, always include
993       a_QSWbyATM_cover in qnet (as it should be).
994     - verification/global_ocean.cs32x15 : update results accordingly
995       (output.seaice.txt output_adm.seaice.txt).
996    o pkg/seaice + obcs:
997     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
998       equivalent of assuming no tracer gradient outside the OB region.
999       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1000     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1001       after changes above);
1002     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1003       only at OB location (instead of over a band of OLx width).
1004    o pkg/seaice:
1005     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1006       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1007    o pkg/obcs:
1008      - split header file "OBCS.h" into 4 separated files:
1009        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1010       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1011         (contain no conditional statement which depends on OBCS options).
1012      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1013        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1014    o ctrl, cost, grdchk & autodiff pkgs:
1015      - make options file more standard (like other {PKG}_OPTIONS.h file but
1016        with AD_CONFIG.h); clean-up some of the included header files.
1017    o pkg/obcs:
1018      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1019      - apply tracer OB values to tracer field only at OB location (instead of
1020        over a band of OLx width)
1021      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1022      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1023        obcs_apply_tloc.F & obcs_apply_sloc.F
1024    o obcs in model/src:
1025      - call OBCS_APPLY_W only if NonHydrostatic.
1026      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1027      - reset dEtaHdt and wVel to zero outside OB interior region ;
1028      - leave tracer unchanged outside OB interior region: This has no effect
1029        on the solution but just to prevent unrealistic tracer value outside OB.
1030      - zero out velocity outside OB interior region: This has no effect on
1031        the solution but just to prevent unrealistic velocity outside OB.
1032    o obcs and non-lin free-surf:
1033       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1034       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1035       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1036       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1037       update results of test-exp. exp4(nlfs).
1038    o exp4 (nlfs) test-exp:
1039       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1040       with NonLin-FreeSurf); update output.nlfs.txt
1041    o obcs and 2d/3d solver norm:
1042       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1043       and outside OB interior region (will allow to place OB further inside the
1044       domain). Depending on the domain, can affects cg2d-Norm (previous
1045       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1046       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1047       e.g. in tutorial_plume_on_slope.
1048      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1049    o pkg rbcs:
1050      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1051      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1052    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1053    o pkg/shelfice/shelfice_init_fixed.F
1054      fix CPP-flag combinations
1055    o pkg/seaice: Merge iceage code of Pierre Rampal
1056      * update/change/correct ice age calculations
1057      * add age updates for pathological cases
1058      Probably needs more testing...
1059    
1060    checkpoint62x (2011/05/13)
1061    o pkg/mom_vecinv:
1062       high-order vorticity scheme: use interior masks (maskInW & S)
1063       to zero-out (outside OB) gradient of vorticity.
1064    o verification exp.:
1065       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1066       hs94.128x64x5 and seaice_obcs ; update results.
1067    o pkg/obcs:
1068      fix bug in OBeta for YZ sections in obcs_exf_load.F
1069    o pkg/ctrl, pkg/shelfice, and optim:
1070      - add new control variable xx_shifwflx (fresh water flux underneath ice
1071        shelves). This is almost as tedious as obcs-ctrl, because the
1072        variables needs its own mask.
1073      - add a cost function term that penalizes the deviation of xx_shifwflx
1074        from the first guess (zero) in analogy to other control variables
1075    o pkg/shelfice:
1076      - start basic adjoint
1077    o pkg/ctrl:
1078      - remove extra 2D field "for good measure" when initializing in
1079        ctrl_set_globfld_[xy/xz/yz].F
1080      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1081      - improve error messages in ctrl_set_unpack_*
1082    o OBC implementation in momentum:
1083       use interior masks (maskInC,W & S) in momentum S/R:
1084       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1085       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1086       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1087       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1088       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1089        (and also with Leith/Smagorinsky harmonic-viscosity).
1090       Update output of experiment dome and exp4 (+nlfs).
1091    o exp4 test-exp:
1092      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1093        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1094        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1095        time-varying OB at Western-side for wVel (NonHyd); update output.
1096      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1097        and biharmonic-viscosity ; also use prescribed time varying OB.
1098    o pkg/obcs:
1099      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1100    o model/src:
1101      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1102      - initialise startTime & nIter0 with unlikely values: allows to set one
1103        from the other without ambiguity.
1104    o seaice_obcs test-exp.:
1105      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1106    o pkg/obcs:
1107      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1108        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1109    o pkg/seaice:
1110      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1111        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1112      - fixed bug in the initialization of sea ice salinity variable HSALT
1113        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1114    o fizhi-cs test exp.:
1115       switch reference output convention for these 2 non-standard test-exp,
1116        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1117          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1118       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1119    o model/inc:
1120      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1121        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1122    o pkg/seaice:
1123      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1124    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1125      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1126        and initial HSALT
1127    
1128    checkpoint62w (2011/04/26)
1129    o pkg/mom_fluxform:
1130      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1131      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1132      - update output of exp. global_ocean.90x40x15
1133    o pkg/mom_vecinv:
1134      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1135    o update seaice exp.:
1136      use more consistent parameter values (remove "backward compatability only":
1137       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1138      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1139       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1140    o update test-exp global_ocean.90x40x15:
1141      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1142      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1143      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1144      o turn on zStar & viscA4 in standard set-up (dir input/)
1145        and update output files: output.txt & output.dwnslp.txt
1146    o new AD-test experiment: obcs_ctrl
1147      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1148    o pkg/dic:
1149      fix two bugs in handling water vapour pressure in carbonate chemistry
1150      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1151      (add DIC Option = WATERVAP_BUG to recover old results)
1152      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1153    o adding allowInteriorFreezing option to check for water below freezing point
1154      at depth and bring the negative heat anomaly to the surface level
1155    o pkgs _fields_load:
1156      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1157      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1158        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1159        rbcs to get interpolation weights and time reccord number.
1160      - fix multi-threading in aim_fields_load.F
1161      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1162    o external_fields_load:
1163      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1164       interpolation weights) to use in a periodic time-series ; do not divide by
1165       time-step to convert to integer:
1166       - this fixes case where externForcingPeriod is not multiple of time-step
1167          (Thanks to Christopher L. Wolfe)
1168       - this fixes case where externForcingPeriod is an odd multiple of time-step
1169         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1170      store index of time-record which is currently loaded:
1171       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1172       - needed for the adjoint but not yet used because of extensive recomputations;
1173         (to be fixed soon)
1174    
1175    checkpoint62v (2011/04/02)
1176    o verification/1D_ocean_ice_column added to test Ian Fenty's
1177      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1178    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1179      (new velocity statistics after changing maskInW & maskInS definition)
1180    o pkg/generic_advdiff with OBCS:
1181      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1182      equivalent to assumption of no tracer gradient outside the OB region.
1183      This will affect the results if using obcs+biharmonic diffusion.
1184      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1185    o pkg/obcs:
1186      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1187      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1188      in Interior region. No impact on solution but affects Velocity monitor stats.
1189    o pkg/ptracers (adjoint)
1190      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1191      tape file for each tracer
1192    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1193      of parts of the adjoint code at run time. For now, there are only
1194      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1195      parameters are set in data.pkg.
1196      This is the lazy coward's version of doing this, but still useful for
1197      debugging. In order to do it right, everything needs to be moved to
1198      pkg/autodiff.
1199    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1200      the end; this fixes the adjoint balancing code for open boundaries.
1201    o pkg/ctrl:
1202      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1203        xx_${varname}period =   0.,  means time-independent control part
1204        xx_${varname}period = -12., means one-year-periodic monthly control part
1205      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1206        clean up ctrl_init a little, remove unused variables
1207      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1208      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1209    
1210    checkpoint62u (2011/03/15)
1211    o model/src:
1212      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1213        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1214      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1215        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1216    o pkg/ctrl/obcs/ecco:
1217      - remove obsolete, unused, and partially broken code:
1218        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1219        ALLOW_CTRL_OBCS_BALANCE
1220      - put a stop statement into ecco/cost_obcsvol.F, but also add
1221        cost_obcsvol to ecco_ad_diff.list
1222    o pkg/ecco: fix counting cost function contributions for obcs (code
1223      by Matt M.) and diffkr for diagnostics
1224    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1225      add cost penalty terms for initial uvel, vvel, eta controls
1226      and I/O for prior error files
1227    o pkg/mdsio:
1228       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1229       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1230       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1231    o pkg/ctrl:
1232     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1233       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1234       unused and superfluous variables
1235     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1236    o pkg/ecco
1237     - enable adjoint of Stevens OB
1238    o pkg/ctrl/ecco/grdchk:
1239      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1240        Fortunately, we do not have any tests for the numerous cpp-flagged
1241        option of "obcs as control parameters" so we will never know
1242        if this is an improvement (but at least now things compile).
1243      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1244      - fix some problems within never used ifdefs to make the code compile
1245    o pkg/obcs:
1246     - Refine Interior mask definition to work with more complex OB (e.g.
1247       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1248       read in Interior mask from file. Check if Interior mask is consistent
1249       with OB list of indices.
1250    o pkg/seaice
1251     - beginning code for a seaice tracer package,
1252       but currently only used for seaice age: SEAICE_AGE
1253       SEAICE_num = 4
1254       iTracer = 1: area-weighted ice age
1255               = 2: volume-weighted ice age
1256               = 3, 4: template for one-year vs. multi-year ice
1257       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1258       SEAICE_num
1259    
1260    checkpoint62t (2011/03/05)
1261    o pkg/obcs:
1262     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1263       then normal component. This ensures that the normal component is set
1264       correctly even when it conficts with tangential setting from an other OB.
1265       Affects results of test-experiment seaice_obcs: update the output.txt
1266    o pkg/obcs:
1267     - add code to monitor statistics of dynamical fields at OB.
1268     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1269       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1270       - change default: balance the Net inflow through all OB (instead of balancing
1271         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1272     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1273       to match Nortern OB inflow (OBCS_balanceFacN=0).
1274    o pkg/seaice:
1275     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1276    o pkg/seaice (seaice_growth v 1.113):
1277     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1278       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1279       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1280       runtime flag SEAICEareaFormula is kept but is inactive
1281    o model/src:
1282     - add new param to scale curvilinear grid distance and area when using
1283       a different sphere radius from the grid-files.
1284     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1285    o adjoint:
1286     - enable adjoint of Stevens OB
1287     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1288       (a bit delicate because of potentially modified adj. common block structure;
1289       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1290    
1291    checkpoint62s (2011/02/15)
1292    o pkg/seaice (seaice_growth v 1.112):
1293     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1294       computing the ice cover tendency from effective thickness tendencies. Include
1295       Ian Fenty's formula.
1296     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1297       SEAICEareaFormula.
1298     - simplify notations for the various d_HEFF/d_AREA terms.
1299    o pkg/gmredi:
1300     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1301       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1302       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1303    o pkg/seaice (seaice_growth v 1.111):
1304     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1305     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1306       also melt ice.
1307    o pkg/seaice:
1308     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1309     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1310    o pkg/cheapaml:
1311     - from Nico Wienders: New version of this package.
1312    o pkg/flt:
1313     - add CPP options to prevent floats to re-enter the opposite side of
1314       a periodic domain (default: keep periodicity)
1315    o pkg/gmredi:
1316     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1317       (needed for multi-dim advection).
1318     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1319    o model/src:
1320     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1321    o tutorial_tracer_adjsens
1322     - extend to NLFS and replace maskC by hFacC
1323       (change reference output accordingly)
1324    
1325    checkpoint62r (2011/01/24)
1326    o testreport:
1327     - add option -deloutp (-do) to remove output file after successful run
1328     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1329       extract exact list of procs from this file ; adjust COMMAND by
1330       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1331    o pkg/ecco: replace old ineffective way of penalizing deviations from
1332      first guess (of obcs) with code by Matt Mazloff
1333    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1334      exf/cal
1335      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1336        and handle case of obcs?period == 0
1337        Not affected by these changes: There is still an inconsistency in
1338        the computation of start/endrec for the obcs variables for ALLOW_CAL
1339        defined (see comment by Menemenlis, 7-Mar-2003)
1340      - make S/R ctrl_get_gen_rec return something meaningful even if
1341        ALLOW_CAL is not defined
1342      - ctrl_getobcs?: simplify code so that it does not need to use
1343                       S/R exf_swapfields
1344    o testreport:
1345       allow to test MPI with different number of processors for each experiment:
1346       create file "SIZE.h.mpi" in each build dir.
1347       Note: update of "-command" argument not yet implemented.
1348    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1349      alleviate the need for additional 3D tapes when using
1350      the non-inear free surface in the adjoint. This is done
1351      by adding an 'update' of hfacc etc. to their current
1352      value at the beginning of forward_step.F.
1353    o pkg/seaice
1354      seaice_lsr: move stress-divergence computations out of outer pseudo-
1355      timestepping loop
1356    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1357      up, so that the calls of the ctrl_* subroutines are really at the end
1358      of the routine.
1359    o pkg/gmredi:
1360      allow to specify a 2-D horizontal map and a 1-D vertical profil
1361      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1362    o pkg/seaice:
1363      move lsr iterations from seaice_dynsolver to seaice_lsr.
1364    o pkg/seaice:
1365      reduce memory footprint of seaice mutldim advection tapes,
1366      by using a 2D tape independent of the generic_advdiff ones,
1367      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1368    
1369    checkpoint62q (2010/12/29)
1370    o model/src:
1371      - check horizontal grid-spacing for unset or zero/negative values.
1372      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1373    o pkg/flt:
1374      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1375      - precision of input and output files set according to readBinaryPrec
1376        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1377      - initial float position from tiled file was not converted to index space
1378        (looks like a bug): fixed to make it similar to initial pos. global file.
1379    o global_ocean.cs32x15:
1380       change SIZE.h of AD set-up to get same tiling as with MPI.
1381       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1382    o model/src:
1383       add flag to control printing of domain fields (bathymetry, hFac ...) in
1384       ini_mask_etc (call to plot_fieds_xy*).
1385    o pkg/thsice:
1386       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1387       over the interior only + apply EXCH at the end (like with SEAICE advection).
1388    o pkg/mdsio:
1389      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1390        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1391      - change barrier call for safe multi-threads access to 3-D shared buffer.
1392      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1393      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1394        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1395    o pkg/flt:
1396      - add fourth-order Runge-Kutta integration
1397      - add basic exch2 support (only 1 facet supported so far!)
1398    o pkg/mdsio+rw:
1399      new S/R to read local (or tile independent) vector (read counterpart of
1400       mds_writevec_loc, and front-end write_glvec_rl/rs).
1401    o global_ocean.cs32x15: additional input_ad.seaice experiment
1402        that uses pkg/seaice rather than pkg/thsice.
1403        (using multidim advection for seaice)
1404    o towards more F95 syntax for array specification in namelist:
1405      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1406        of all verification experiments.
1407           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1408          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1409      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1410    o global_ocean.cs32x15: additional input.seaice experiment
1411        that uses pkg/seaice rather than pkg/thsice.
1412    
1413    checkpoint62p (2010/12/17)
1414    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1415        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1416    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1417        allow for use of multim. advection in seaice adjoint.
1418    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1419      - first attempt to close budgets by taking into account the freshwater
1420        flux implied by the sublimation of snow and ice. So far only the
1421        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1422        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1423    o eesupp/src:
1424      new S/R with new option (NML_EXTENDED_F77) to change array specification
1425      from F95 standard to commonly accepted extended F77 form.
1426      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1427      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1428      for less tolerant f77 compiler (e.g., pgf77, g77).
1429    o globalFiles:
1430      commented out in parameter file "data" since it's not safe with MPI
1431      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1432      in this case); no longer commented out in restart test (tst_2+2).
1433    o add adTapeDir to specify a special directory where adjoint tapes are
1434      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1435      and cannot be used together with mdsioLocalDir.
1436    o nesting pkgs:
1437      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1438      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1439      - add parameter files + utils dir + output from short run on beagle.
1440    o pkg/seaice:
1441        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1442    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1443      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1444    
1445    checkpoint62o (2010/11/25)
1446    o pkg/exf:
1447      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1448    o pkg/seaice:
1449      - seaice_ocean_stress: split a loop for better vectorization of the
1450        adjoint code
1451      - seaice_growth.F: fix bug in conservation of freshwater connected to
1452        capping of heff, put contribution into d_HEFFbyNEG
1453      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1454        by something more sensible (parameters that are what their name implies)
1455      - change some defaults, so that by default exf-parameters are used for
1456        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1457        to reproduce the old results, many data.seaice now contain funny values
1458        for cpAir and latent heat of sublimation
1459    o packages_readparms.F: move exf_readparms up in line so that
1460        exf-parameters are visible for other packages (e.g. seaice)
1461    o debugMode & debugLevel=2:
1462      - differentiate between debugMode & debugLevel=2:
1463        debugMode: controls printing of debug messages (sequence of S/R calls).
1464        debugLevel: controls printing of algorithm intermediate results and stats.
1465      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1466        => allows to print debug-stats without all sequence of call messages.
1467      - switch control of debug print from debugLevel to debugMode in many S/R.
1468    o pkg/obcs (obcs-sponge):
1469        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1470        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1471    o pkg/generic_advdiff:
1472      - record overlap minimum size for each advection scheme;
1473      - refine criteria on overlap minimum size;
1474      - check and stop (in gad_check) if overlap size is too small.
1475    o pkg/obcs:
1476      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1477        once, in ptracers_implicit.F)
1478      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1479        apply OB values when tile has OB)
1480    o model/src, coriolis setting:
1481      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1482        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1483        files (selectCoriMap=3) with any grid.
1484      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1485    o pkg/seaice/seaice_growth.F:
1486        a few cosmetic changes that reduce the number of lines of code
1487    o pkg/obcs: add boundary conditions following Stevens (1990)
1488      - the code follows old MOM/NAOSIM code
1489      - so far it is only implemented for the eastern and western boundaries
1490        and NOT for pTracers
1491    o pkg/rbcs:
1492      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1493        beginning of the first rbcs forcing period.
1494      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1495        offline package, i.e., one file per time, labeled by iteration number;
1496        deltaTrbcs sets the timestep with which the data was generated;
1497        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1498      - rbcsForcingCycle=0 makes forcing non-cyclic.
1499      - make arithmetic safe for negative times and odd forcing periods.
1500    
1501    checkpoint62n (2010/11/09)
1502    o pkg/seaice:
1503        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1504    o pkg/obcs:
1505       New S/R to copy tracer value from the OB location to narrow band region
1506        (width = same as overlap) beyond the OB: preserve OB value (needed for
1507        high-order scheme) which were overwritten by EXCH call if in overlap
1508        region. Applied to theta, salt, ptracer and advected seaice variables.
1509       With seaice: use maskInC in similar way as in gad_advection.F,
1510        in seaice_advection.F and advect.F.
1511       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1512        4th order Adv.Scheme. for pasive salt and ptracer.
1513    o tools/genmake2:
1514      - when looking for an optfile (not specified), only search for Fortran compiler
1515        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1516      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1517        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1518      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1519        an optfile, but otherwise default was just "cpp".
1520      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1521      - when "CC" is not set in the optfile, look for possible C compiler
1522        (instead of just setting CC=cc)
1523      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1524        => add a ".F" to ".o" rule for source files with no "#include" (such as
1525           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1526      - move gfortran before g77 in list of possible Fortran compiler (consistent
1527        with reference compiler switch from g77 to gfortran)
1528    o pkg/seaice:
1529      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1530        seaice_check that stops the model, when the CPP flag is used.
1531      o seaice_growth.F: make capping of ice volume conserving by returning the
1532        capped ice as freshwater to EmPmR. This does not change the verification
1533        experiments but will change runs where the capping is acutally active
1534    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1535      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1536         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1537         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1538    o tools/genmake2:
1539      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1540      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1541      - clean previous genmake log files before anything else.
1542      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1543        files only with "CLEAN" target (instead of "Clean");
1544    o pkg/generic_advdiff:
1545      Change OBCS in multiDim advection (gad_advection.F):
1546       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1547       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1548       which were applying future time-step OB values.
1549      This way, all explicit calculations use current-time-step OB values
1550       (simpler and more consistent).
1551      Affects results when set-up uses time-varying OBC and multi-dim advection;
1552       update output of experiment seaice_obcs.
1553  o pkg/seaice:  o pkg/seaice:
1554    move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:    move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1555     this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &     this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &

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