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revision 1.1367 by mlosch, Wed Jan 19 13:52:14 2011 UTC revision 1.1679 by jmc, Fri Jun 29 13:51:53 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63o (2012/06/29)
8    o vertical mixing schemes:
9      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
10      - replace computation of density (in Function STATE1, opps_calc.F) by a call
11        to S/R FIND_RHO_SCALAR
12      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
13        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
14        affects output (vermix.ggl90) at truncation level.
15    o testreport:
16      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
17        (nSx,nSy) for the number of threads (from eedata.mth)
18    o model/src:
19      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
20        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
21    o verification/tutorial_tracer_adjsens/
22      - compile with ALLOW_CG2D_NSA
23      - run with nonlinFreeSurf=3
24      - update reference output_adm.txt
25    o tools/genmake2:
26      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
27        refine usePROFILES switching off (only when NetCDF is not available).
28    o verification (atmospheric set-up):
29      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
30    o pkg/profiles : refine profiles and files handling.
31    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
32    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
33      - changes to use model/src/the_main_loop.F rather than the ecco version
34        in ecco type adjoint runs.
35    o model/src:
36      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
37      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
38      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
39    o model/src:
40      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
41        update output of test experiment bottom_ctrl_5x5.
42    o pkg/generic_advdiff:
43      - implement vertical bi-harmonic diffusion (for now, only for T & S and
44        only explicitly).
45    o verification/bottom_ctrl_5x5/
46      update reference output (results changed quite some time ago,
47      not sure when; but new reference results look ok in terms of grdchk)
48    o verification/1D_ocean_ice_column/
49      For verification purposes, the exact adjoint rather than an approx.
50      should be used (e.g., to comare against F.D. or TLM).
51      removed autodiff_inadmode*_ad.F routines in code_ad/
52      Update results/ accordingly.
53    o pkg/cal:
54      - change cal_getdate.F so that output date is function of input time only
55        (less ambiguous, not mixed up with input iteration number).
56      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
57    o pkg/diagnostics:
58      - implement calendarDumps also for stats-diags
59      - implement calendarDumps also for snap-shot output (negative freq)
60      - for now, ignores calendarDumps if non-zero phase-lag.
61    
62    checkpoint63n (2012/06/04)
63    o model/src:
64      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
65        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
66      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
67        similar to calc_r_star.F); update results of experiment internal_wave and
68        tutorial_global_oce_in_p (affected @ truncation level).
69    o pkg/shelfice:
70      - add parameterisation of advective-diffusive flux into the ice shelf
71        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
72      - simply eps3/3a computation
73    o eesupp:
74     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
75       between tiles, just fill-in edges assuming locally periodic subdomain) and
76       add corresponding exchange subroutines (EXCH0);
77     - new CG-solver version (_EX0) for disconnected-tiles special case.
78    o model/src (CG-solvers):
79     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
80       (similar final residual output and max-Iter number as with standard version);
81     - allows to store and use lowest-residual solution (standard & _SR versions);
82     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
83     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
84    o eesup/src:
85     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
86       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
87    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
88    
89    checkpoint63m (2012/04/27)
90    o pkg/shelfice:
91     - account for partical cells in surface level below ice-shelf for hydrostatic
92       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
93    o ad test experiments:
94     - update and rename to "ad_optfile.local" local AD-optfile specific to a
95       particular adjoint verification experiment (in verification/*/code_ad/)
96    o pkg/seaice & pkg/exf:
97     - Part two of ECCO-CLIVAR code merges.
98       Completes merge of seaice area relax. code.
99       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
100       to be set in EXF_OPTIONS.h since this pkg controls its I/O
101       (and avoids second CPP option in SEAICE_OPTIONS.h)
102     - change default value of costIceStart & costIceEnd to a valid date.
103     - add snowPrecip to HSNOW in seaice_growth
104    o pkg/ptracers:
105     - move ptracers summary and setup check into separated S/R ; add a check for
106       valid PTRACERS_Iter0 value (error+stop or just warning).
107    o pkg/cal (+ pkg/ecco):
108     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
109       as input; and for AD, unless both are not differentiable (e.g., k index)).
110    o model/src:
111     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
112       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
113       temporary set to usingZCoords value (to be changed to F when using shelfice).
114     - hydrostatic pressure: implement partial cell near the surface also for
115       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
116       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
117    o pkg/ctrl/ctrl_init.F:
118     - add a formal parameter to s/r ctrl_init_rec to print
119       xx_$(ctrl_valiable)_file for easier debugging
120     - move call of cal_* routines into the if-block where they are really
121       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
122       to specify a startdate
123    o pkg/seaice:
124     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
125       global_ocean.cs32x15/code versions).
126     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
127       verification experiment global_ocean.cs32x15.seaice and update results.
128    o pkg/exf:
129     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
130       (according to useExfYearlyFields).
131    o pkg/cal:
132     - move calendar setting & summary (previously in cal_readparams.F) into new
133       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
134       length of the simulation is set (after SET_PARMS call); This is an attempt
135       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
136     - For safety: keep a record of pkg/cal parameter settings status
137               to allow to STOP if one pkg/cal S/R is called too early.
138     - add a stop in all basic pkg/cal subroutines if called before setting is done.
139     - modify cal_getdate.F: stop when nothing was returned;
140       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
141       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
142    
143    checkpoint63l (2012/04/04)
144    o pkg/bbl:
145      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
146        update global_with_exf output.yearly.txt file.
147    o pkg/cal:
148      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
149      - remove 2 unsused and very short (1 line only) functions ;
150      - remove unsused subroutines from AD-Diff list.
151    o model/src:
152      - start to implement clean wait to stop in initialization S/R (config_check.F,
153         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
154    o folowing PRINT_MESSAGE changes:
155      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
156    o pkg/bbl:
157      - modification so it can work with z*
158      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
159      - global_with_exf/input.yearly verification; changes output.yearly.txt
160    o eesupp/src:
161      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
162        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
163      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
164        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
165      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
166      - when using MPI, always set usingMPI=T ; set default accordingly and stop
167        if not consistent.
168      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
169        argument is zero (in case called within single-thread section).
170    o pkg/fizhi:
171        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
172        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
173    o pkg/exch2:
174      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
175        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
176      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
177        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
178        with bad ones coming from a not-yet-updated halo.
179        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
180    o pkg/frazil:
181        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
182        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
183    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
184    o verification/lab_sea
185      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
186      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
187      * nTimeSteps 3 -> 4
188      * changed reference output accordingly
189    o pkg/ctrl:
190      * fix ctrl_get_gen for xx_sst, xx_sss
191    o pkg/fizhi:
192      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
193        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
194      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
195        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
196        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
197    o pkg/gmredi:
198      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
199    o pkg/fizhi:
200      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
201        (old)aces open64 tuv test.
202    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
203    o pkg/mom_vecinv:
204      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
205        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
206        with non-lin free-surf).
207    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
208      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
209      some compilers (gfortran 4.6.0 on MacOS)
210    o momentum:
211      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
212        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
213        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
214    
215    checkpoint63k (2012/03/17)
216    o model/src:
217       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
218         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
219       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
220         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
221    o model/src: solve_*diagonal.F
222       - replace division with multiplication by inverse (similar to original version)
223         update output of AD exp. global_ocean.90x40x15.
224       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
225         to enable the use of the vectorized & differentiable solve_tridiagonal.F
226       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
227         vertical advection (to get solve_tridiagonal tested in AD mode).
228    o pkg/seaice: ECCO-CLIVAR merge:
229      1. seaice AREA relaxation
230         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
231         * runtime flag: SEAICE_tauAreaObsRelax
232      2. modified global mean cost imbalance code: CPP option
233          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
234    o another iteration on solve_*diagonal.F
235       Make choices independent of AUTODIFF
236       Default will be the adjoinable vectorized version.
237       Alternative choices are:
238       * non-adjoinable original version with low memory footprint:
239         #define SOLVE_DIAGONAL_LOWMEMORY
240       * still adjoinable but does not vectorize (k as inner-most loop):
241         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
242    o testreport
243     - add option to use a home made wrapper around "make"
244     - remove MITGCM_IEEE env. variable (no longer active)
245    o pkg/shelfice
246     - improve computation of friction velocity for velocity dependent
247       exchange coefficients: include velocities into SHELFICEBoundaryLayer
248       block to average velocities vertically
249     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
250    o Modify diagonal solvers, now three versions (upon request):
251      #ifndef SOLVE_DIAGONAL_AUTODIFF
252        1. default version (dating back a while ago)
253      #else /* def SOLVE_DIAGONAL_AUTODIFF */
254      # ifdef SOLVE_DIAGONAL_KINNER
255        2. adjoinable version with k-innermost loop (G. Forget)
256      # else
257        3. adjoinable vectorized version of 2.
258      # endif
259      #endif /* SOLVE_DIAGONAL_AUTODIFF */
260      All flags are currently set within routines, but could/should be moved to CPP-options.
261      Array bounds for 1. are as before, for 2.,3. cover the entire domain
262      (could be changed for 1. too).
263    o verification/lab_sea (fwd):
264      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
265        use 7 categories (except hb87), new solve4temp params (except salt_plume),
266        constant salinity (=4) or variable salinity (salt_plume) done through
267        SItracer.
268    o pkg/seaice:
269      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
270      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
271         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
272        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
273        SEAICE_freeze got retired) but already better than previously with
274        SEAICE_freeze=123456.7 deg.C;
275      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
276        (safer multi-threaded setting); always set SEAICEuseEVP;
277      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
278        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
279        stop if multiple specifications for the same coeff; make sure default
280        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
281    o pkg/obcs:
282      - allow to switch to upwind 1rst order advection scheme for the advective
283        flux computation at the open-boundary; disabled for adjoint built.
284    o pkg/ptracers:
285      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
286      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
287      - add parameter to decide when to start a tracer; use internal flag to
288        know which tracer to step-forward; switch this internal flag at the top
289        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
290        for adjoint built.
291    o pkg/seaice:
292      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
293      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
294      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
295    o pkg/ecco:
296      - fix writing of output file DiagnosCost_ClimSalt/Theta
297        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
298    o pkg/seaice:
299      - add missing initialisation of COR_ICE array in dynsolver.F
300      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
301        compiled either way, and is tested in all exps (multidim was only tested
302        in lab_sea ad before).
303      - cosmetic change to prepare for future addition of ITD. no change to results.
304        no defaults change.
305      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
306      - by lack of adequate verification experiments, I further used custom versions
307        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
308        should be correct.
309      - avoid recomputations in ad.
310    o array initialisation in adjoint mode:
311      1) pkg/mom_common/mom_calc_ke.F:
312        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
313        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
314        part this initialisation is gone, resulting in Floating Point Exception
315        (caught by open64 compiler with debug option).
316      2) model/src/convective_weights.F
317        set output convectCount over the full array range (instead of doing
318        an update): this fix a similar issue when called within recomputation (adjoint)
319        which could by-pass the initialisation (normally done in the caller S/R).
320    o pkg/seaice:
321      - final version of turbulent flux params, as agreed at MIT ice meet:
322           SEAICE_mcPheePiston (default is ~ 0.000875)
323           SEAICE_mcPheeTaper (default is 0.)
324           SEAICE_frazilFrac (defualt is 1.)
325           SEAICE_mcPheeStepFunc (default is false)
326      - changes results at trunction error level
327      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
328    o added pkg/frazil:
329      - see frazil_description.tex for details
330      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
331    o pkg/shelfice/shelfice_thermodynamics.F
332      - fix exponents for velocity dependent exchange coefficients: change
333        from 2/3(=0) to 0.66666666666666667
334      - move computation of velocity dependent exchange coefficients into
335        separate loop, so that it applies to both thermodynamics
336      - move some divisions by constants out of loops
337    
338    checkpoint63j (2012/02/16)
339    o pkg/seaice:
340      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
341      - SItracer:  added run time params, and allow coupling to ocn salinity.
342    o pkg/seaice: remove (almost) all divisions by constants within loops
343      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
344      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
345      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
346      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
347    o pkg/seaice :
348      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
349        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
350      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
351      - add permanent SItflux diag that corresponds to TFLUX but includes
352        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
353      - allow activation/testing of a fix for suspected missing term in
354        ocn-ice heat budget (to be confirmed). To test this, you want to
355        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
356        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
357      - no change in results, fwd or ad.
358    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
359      - switch to variable freezing point.
360           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
361      - bug fix : the sublimation term that was missing is now activated.
362           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
363      - bug fix : flooding sign term for SIsal0.NE.0.
364           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
365    o pkg/seaice:
366      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
367        is now the default, and the old default constant freezing point is recovered
368        with SEAICE_tempFrz0    = -1.96,
369             SEAICE_dTempFrz_dS = 0.,
370      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
371      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
372      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
373        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
374      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
375        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
376      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
377        seaice_growth r149 for legacy branch (no results change).
378      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
379        from I. Fenty).
380      - results did not change except for global_ocean.cs32x15, mostly due to the
381        switch to variable freezing point (see above item for detail).
382    o pkg/thsice:
383      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
384        seawater freezing in thsice_calc_thickn (not used).
385    o pkg/seaice: turbulent flux term specification via run time params.
386      - replace CPP switches with run time switches to facilitate testing
387      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
388                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
389      - added runtime parameter : SEAICEturbFluxFormula
390      - move Mcphee constants to SEAICE_PARAMS.h
391      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
392                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
393                 remove seaice_summary call (moved to seaice_init_fixed)
394      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
395        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
396      - seaice_summary.F : add missing report of read turbulent flux term set up
397                           and SITRACER.
398      - seaice_check.F : check range; inform and stop if retired CPPs are used
399                         (incl. SEAICE_AGE).
400      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
401             CPP switch, same computation as before for the different options.
402      - change results at the truncation level.
403    o pkg/seaice:
404      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
405        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
406        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
407      - update verification/*/input*/data.seaice:
408        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
409        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
410        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
411        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
412    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
413      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
414        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
415        difference in results only due to machine truncation.
416      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
417        MaykutPolySatVap; keep MIN_LWDOWN.
418      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
419      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
420        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
421    o pkg/salt_plume:
422      - isolate saltPlumeFlux array exch into a specific S/R called from
423        do_oceanic_phys.F
424      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
425    o verification:
426      - move untested set-up to MITgcm_contrib/verification_other.
427    o pkg/seaice:
428      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
429    o pkg/seaice:
430      - seaice_solve4temp.F (keeping results unchanged):
431        * add 2 future run-time params to select which saturation vapor pressure
432          formula is used and how post-iteration fluxes are set.
433          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
434        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
435          the linearized expression to stay consistent with tsurf finding.
436      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
437        can be < 0.
438    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
439      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
440        conductive heat flux F_c , and add it explicitly when updating tsurf as
441        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
442        so that now F_ia has a consistent meaning through the entire routine.
443        This causes differences at truncation level: update output of fwd exp.
444        global_ocean.cs32x15.seaice.
445    o pkg/seaice:
446      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
447        of arrays, sign/direction of fluxes; no effect on results.
448      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
449        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
450        note: this should have been done before changing celsius2K default.
451      - to keep results unchanged, add back old value of celsius2K in verification
452        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
453      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
454        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
455        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
456        freezing temp is consistent with value in seaice_growth.F ; this causes
457        differences at machine truncation level: update lab_sea AD output (3/4).
458    o pkg/seaice:
459      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
460        and climsst/sss even when using seaice (to prevent calculation that might
461        use SST on land); does not affect any verification exp.
462      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
463        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
464    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
465      over land (non-legacy code)
466    o vectorize salt_plume package:
467      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
468      - this code computes plumebk everywhere (also over land), thus requires
469        code to avoid divisions by zero and catch the case of kLev=Nr.
470      - efficiency of salt_plume_frac is still sub-optimal
471    o tools (genmake2):
472      - fix makefile NAME specification (option: -makefile NAME) by adding
473        "-f $MAKEFILE" in few places where it was missing including makedepend
474        command (contribution from Paul).
475    
476    checkpoint63i (2012/01/24)
477    o model/src:
478      - add factorized versions of some EOS code to find_rho.F,
479        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
480    o model/src:
481      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
482      - change default celsius2K from 273.16 to 273.15
483      - to keep results unchanged, add back old value of celsius2K in verification
484        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
485         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
486    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
487      to make TAF generate vectorizable code
488    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
489       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
490       have flags that do this more efficiently.
491    o pkg/diagnostics/diagstats_calc.F
492      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
493    o pkg/obcs (with exch2):
494      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
495        and remove code (in obcs_readparms.F) which was based on EXCH of indices
496        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
497    o pkg/exf and seaice exp:
498      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
499        so that switching off area & heff advection flags does not affect results.
500      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
501      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
502        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
503        results of verification experiments: 1D_ocean_ice_column(fwd),
504        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
505        and offline_exf_seaice (all 4).
506    o pkg/seaice:
507      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
508        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
509      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
510        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
511        not multi-dim advection;
512      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
513        SHORTWAVE_HEATING #undef.
514    o optim: make Makefile more robust (?)
515    o pkg/obcs:
516      * fix treatment of obcs_read_pickup for TAF
517    o pkg/shelfice:
518      * add missing initialisation of num_shifwflx
519      * new adjoint verification exp. for isomip
520      * change Prandtl and Schmidt numbers from generic formulations
521        (in terms of model diffus. and visc.) to separate runtime
522        parameters, with Holland and Jenkins (1999) default values.
523    o pkg/exf (interpolation):
524      - extended input field (2 rows) near the N & S poles:
525        * fill in with the symetric value (when even Nb of data in longitude)
526        * add average value at the poles only for scalar quantities ; for vector
527          component interpolation, skip the averaging and keep duplicated values,
528          unless the 2 components have same location (uvInterp=T) in which case
529          interpolate the 2 components together using S/R EXF_INTERP_UV.
530      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
531        together: this allows to account properly for local orientation when
532        averaging at N & S pole.
533      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
534        exf-interpolation near N & S poles. Undef by default.
535      - add debug check/print on 1rst iter if debugLevel >=2.
536    o pkg/exf:
537      - change masking flags definition (no longer "parameter"), put them in
538        common block and set them in S/R EXF_INIT_FIXED.
539      - change recognized masking flag from s,u,v to c,w,s since the mask
540        to use (maskC,W,S) depends on position on model grid and has little to
541        do with scalar/vector difference; fix masking if using P-coordinates.
542      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
543        and update results of exp. global_with_exf (x2).
544      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
545    o pkg/obcs
546      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
547    o pkg/exf (interpolation):
548      - assume periodicity in X only if input field cover full longitude range.
549      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
550        and should vectorise).
551      - fix input lat of the 2 added row (in case we provide N.pole data).
552    
553    checkpoint63h (2011/12/30)
554    o pkg/seaice:
555      - change declaration of UVM from _RL to _RS in order to get B-grid
556        uIce,vIce monitor when _RS = real*4
557    o pkg/offline:
558      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
559      - compute vertical velocity if not read from file (switch on exactConserv
560        & staggerTimeStep);
561      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
562    o verification:
563      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
564        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
565        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
566      - update output of exp. global_ocean.cs32x15.viscA4 after changing
567        grid-file angles (used here for coriolis-3d);
568      - remove (or gzip) few files not needed to run fizhi-cs experiments.
569    o pkg/exf (vector interpolation):
570      - rotate vector component toward local grid-axis orientation using grid-angles
571        (stored in GRID.h) instead of locally computed rotation angle; keep old code
572        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
573    o pkg/seaice:
574      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
575        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
576    o pkg/PKG_OPTIONS.h files:
577      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
578        outside of the #ifdef ALLOW_THISPKG / #endif block.
579      - update verification/*/code/PKG_OPTIONS.h files.
580    o add a verification experiment (offline_exf_seaice/input.seaice) that test
581      the B-grid LSOR solver
582    o pkg/seaice: sort out emissivity and long wave radiation step 2:
583      - add emissivity for snow and ice as new run-time parameters
584        (unfortunately) that default to the corresponding exf values; this
585        changes results in most verification experiments so that for backward
586        compatibility these parameter have to be set explicitly to inconsistent
587        values (ugly);
588      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
589        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
590        until we agree how to handle this bug properly
591    o pkg/exf (interpolation):
592      - add a set of run-time param ({inputfield}_interpMethod), one for
593        each interpolated input field, to select the interpolation method
594        with a value of zero switching off the interpolation;
595      - print interpolation parameters to standard output;
596      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
597        (to use instead runoff_interpMethod=0 in data.exf).
598      - simplify default setting of interpolation parameters (for all fields,
599        set position to match model grid cell-center position, leading to trivial
600        interpolation in case of regular Lat-Lon grid) and fix for the case of
601        non-uniform delY.
602    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
603       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
604       this factor is absolutely required, because the lw exitance (= out-going
605       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
606       where the reflectivity rho = 1-emissivity for conservation reasons. Once
607       this is established, we can remove the CPP-Flag (if we want to).
608    o pkg/seaice:
609      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
610        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
611      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
612        what the name implies (and not emissivity*BoltzmannConstant), this means
613        the old default value of 5.5e-8 now means
614        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
615        S/R exf_readparms
616      - FV-discretization of the B-grid LSOR solver, turn on with
617        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
618        of the calling routine dynsolver, so that B and C-grid code look a
619        little more alike.
620      - fix index bugs in ostres.F (B-grid code)
621    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
622    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
623      default for SEAICE_emissivity, if useEXF; requires setting a wrong
624      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
625      backward compatiblity
626    o model/src: use sigmaR in calc_ivdc
627    
628    checkpoint63g (2011/12/16)
629    o pkg/seaice/seaice_growth.F:
630      fix heat conservation of the coupled ocean-seaice system.
631      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
632      solid vs liquid water treatment is resolved via QNET.
633    o pkg/seaice/seaice_growth.F:
634      add missing term for sublimation in saltFlux, which was breaking conservation.
635    o pkg/seaice/seaice_model.F:
636      Remove this patholigical case treatment in evolution branch,
637      where it is un-necessary and breaks conservation.
638      Update global_ocean.cs32x15/results accordingly for
639      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
640    o model/src:
641      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
642      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
643    o pkg/obcs:
644      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
645      tendency for temperature and salinity that is then applied to update
646      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
647      horizontal advection and diffusion contributions on the boundary (in
648      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
649      removing the mask in S/R timestep_tracer. The advantage of this approach is
650      that the updated tracer values include contributions from the surface
651      forcing and vertical diffusion.
652      This modification changes exp4.stevens because of vertical diffusion.
653    o model/src:
654      change non-curvilinear grid setting to also work with exch2 + blank tiles:
655      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
656        face dimensions.
657      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
658        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
659        and INI_SPHERICAL_POLAR_GRID.
660      change test-experiment global_ocean.90x40x15:
661      - split the domain in many more tiles (9x4 tiles of 10x10 each);
662      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
663      - update results of both test (std & dwnslp).
664    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
665       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
666    o model/src:
667      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
668        and fix initialisation when using sigma-coords.
669    o model/src:
670     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
671       to their current value at the beginning of forward_step.F": add a new run-time
672       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
673     - set doResetHFactors=T in the following test exp:
674        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
675        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
676        and tutorial_global_oce_in_p (nonLinFS in p)
677    o pkg/ecco
678      - added IES cost term
679    o verification/advect_xz
680      - scale down the depth by 1/100 (from 200 km to just 2.km)
681      - add secondary test using divergent flow, r-star and implicit vertical advection.
682      - add note (check_conserve_TS.txt) and matlab script to check global
683        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
684    o pkg/rbcs:
685      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
686    o pkg/obcs (Stevens BCs):
687      - fix various problems in the phase speed computations of the Stevens
688        boundary conditions:
689        - sign error for western and southern boundaries,
690        - time tendencies were underestimated by factor of dTracerLev and some just
691          zero (for multidim advection schemes) -> now estimate time tendencies
692          from difference between previous (n) time level and the one before (n-1);
693          this requires storing a field per tracer per boundary, also in the pickup
694          files.
695        - replace deltaTmom in cflMer/Zon computation with dTracerLev
696        - set default phase velocity to cflMer/Zon
697      - update verification experiment exp4.stevens
698    o pkg/generic_advdiff (implicit_r):
699      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
700        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
701      - fix implicit vertical diffusion or advection with NonLin FreeSurf
702        (was using current recip_hFacC instead of future recip_hFacC): set future
703        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
704        solver S/R ;
705      - fill diagnostics of vertical advective fluxes (computed from tendency)
706        when using implicit vert. advection;
707      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
708         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
709         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
710         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
711    o pkg/diagnostics:
712      - add diags for T & S tendency which goes through Adams-Bashforth.
713    
714    checkpoint63f (2011/11/30)
715    o pkg/obcs/obcs_calc_stevens.F:
716      - join some loops to reduce number of if-statements
717      - fix a bug in code for northern and southern boundaries.
718    o pkg/seaice/seaice_init_varia.F
719      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
720        caused zero ice-velocities for the B-grid code
721    o pkg/seaice/seaice_init_fixed.F
722      - fix a bug in the initialisation of the second metric terms
723        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
724      - this affects all seaice configurations with useCurviLinearGrid = .true.
725        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
726        = .true. (default)
727      - the only verification experiment affected is global_ocean.cs32x15:
728        icedyn, seaice, and seaice_dynmix (AD)
729    o pkg/thsice/thsice_diagnostics_state.F
730      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
731        not contain garbage that can lead to surprises in diagstats_calc.F
732    o model/src:
733      - move bi,bj loops inside INTEGR_CONTINUITY ;
734      - call INTEGR_CONTINUITY directly from forward_step.F
735        (previously called from momentum_correction_step.F)
736      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
737        forward_step.F and pkg/ecco/the_main_loop.F
738    o model/src/do_oceanic_phys.F:
739      - reset addMass to zero only if useICEFRONT ;
740      - separated k-loop for rhoInSitu calculation ;
741      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
742        and at constant T,S (= WdRHOdP);
743      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
744        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
745        transport of locally-referenced potential density);
746        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
747    o gluemnc:
748      - replace ncrcat with ncks when adding variables to *.glob.nc
749      - change the way variables without record dimensions are handled so that
750        files that have variables with and without record variables can be glued:
751        add a record dimension with a new unique name to be able to differentiate
752        between variable with and without a-prior record dimensions. Remove
753        this record dimension before adding the variable to the *.glob.nc file.
754        This procedure automatically works also for grid.*.nc files that do not
755        have any record dimension.
756    o verification/cpl_aim+ocn:
757      - generate new reference output on baudelaire (gfortran, mpich2) (previously
758        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
759    o pkg/obcs/obcs_calc_stevens.F:
760      - add code for northern and southern boundaries.
761      - reorder some loops to save some operations and so that drFBar can be scalar
762    o model/src:
763      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
764        truncation) and add diagnostics for Adams-Bashforth tendency increment.
765      - update test-exp. AD output:
766        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
767      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
768        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
769        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
770        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
771        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
772        tutorial_plume_on_slope.
773    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
774      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
775      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
776      does not even come with an F77 compiler anymore, this should not be
777      a limitation
778    
779    checkpoint63e (2011/11/06)
780    o pkg/seaice adjoint of LSR:
781      - substantially rework STORE dirs.
782      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
783        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
784        and only perform SOLV_MAX_FIXED adjoint iters.
785        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
786        always goes to same record, meaning that the last forward field will be
787        the one used in the adjoint - an approximation.
788      - now produces non-zero LSR-related gradients, and acceptable gradients for
789        An's zonal (x-z) test case (to be checked in)
790      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
791        (but these are screwed up by the thermodynamics in the first place);
792        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
793        output_adm.txt also reflects changes to seaice_lsr
794      - global_ocean.cs32x15:
795        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
796          (output_adm.seaice.txt was updated)
797        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
798          (output_adm.seaice_dynmix.txt)
799    o test-exp. exp4+stevens:
800      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
801    o pkg/seaice (lsr solver):
802      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
803        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
804      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
805      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
806        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
807      - compute (with new S/R) and print initial (+ free-driff sol. if available)
808        and final residual of linearised system.
809    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
810      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
811    o pkg/obcs: Stevens BCs (still only for east and west)
812      - fix Stevens BCs by using intermediate velocities of previous
813        time step as "baroclinic" contribution rather velocity of one grid cell
814        inside the boundaries; more consistent but makes the entire treatment
815        more complicated, requires new pickup files and two new S/Rs:
816        obcs_copy_uv_n and obcs_save_uv_n
817        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
818        (undefined by default)
819      - silently move computation of some grid factors into separate loops to
820        save some recomputations
821      - add a hack for non-linear free surface
822      - add a verification experiment to exp4 that tests this code
823    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
824    
825    checkpoint63d (2011/10/25)
826    o pkg/obcs + seaice-dynamics:
827      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
828        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
829        values (consistent with an implicit method).
830      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
831        return to older implementation (same results as before); note that none of
832        the "experimental" OBCS_SEAICE options are implemented in the new version.
833      - switch test exp. seaice_obcs to use new version (update output).
834    o pkg/seaice:
835      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
836      - add parenthesis in Water-Ice drag calculations (evp & lsr);
837      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
838        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
839      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
840        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
841    o pkg/layers:
842      - Include potential density as new coordinate (Thanks to David Munday)
843    o pkg/dic:
844      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
845        carbonate computation/output to CALC_PCO2_APPROX
846    o pkg/generic_advdiff
847      - make TAF generate code that vectorizes:
848        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
849    o model/src:
850      - improve vectorization also for adjoint code of
851        solve_tridiagonal and solve_pentadiagonal. As this requires up to
852        5 new 3D-fields, this code is only turned on for the combination of
853        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
854        for singular matrix check (only for TARGET_NEC_SX).
855      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
856        ALLOW_AUTODIFF. This flag now needs to be set outside of
857        solve_tri/pentadiagonal.F
858    o pkg/exf:
859      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
860        optional namelist EXF_NML_OBCS).
861      - add many debug-print (to trace down where pkg/cal error msg comes from)
862    o pkg/mom_vecinv/mom_vi_hdissip.F
863      - rearrange loops so that vectorization is improved and in particular
864        the adjoint routine vectorizes. The code is a little longer now, but I
865        think easier to read.
866        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
867    o pkg/seaice:
868      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
869    o pkg/exch2:
870      - alternative code (without tile x tile matrix) for cumulated (global) sum;
871        used as default; keep using matrix version in adjustment.cs-32x32x1.
872    o tools/build_options:
873      - after merging some MPI and/or multi-threads specific optfiles so that
874        the modified default optfile support both built (using genmake2 -mpi
875        for the MPI built, using genmake2 -omp for OpenMP built),
876        move now obsolete optfiles to tools/build_options/unsupported/
877       (add copy of email sent to support list in doc/optfiles_changes.txt)
878    
879    checkpoint63c (2011/09/28)
880    o pkg/ebm:
881      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
882        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
883    o pkg/seaice (SItracer pickup)
884    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
885      To be done:
886      - thorough testing of missing fields in S/R seaice_read_pickup
887      - thorough matching between generic tracers and specific fields used
888        (e.g. volume-weighted age, area-weighted age, salinity, ...)
889    o pkg/grdchk:
890      - all procs calculate and print finite-difference gradient (for testreport)
891      - change description output used by testreport;
892      - AD testing: also compare and report Finite-difference gradient;
893        => update all output_adm*.txt
894    o test exp. global_ocean_ebm:
895      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
896        and turn on exactConserve; update (fwd) output.
897    o pkg/seaice (LSR):
898      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
899      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
900        * identical results with non-CS topology (but save up to half of EXCH calls)
901        * no much changes in cs-32 verification tests since no ice at face edges
902         (differences due to convergence criteria, since nb of iterations changed)
903        * expect some differences on lat-lon-cap grid.
904        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
905    o pkg/exch2:
906      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
907        many tiles); until alternative coding is added, just add a stop.
908    o pkg/kpp:
909      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
910        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
911    o optfiles:
912      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
913        into corresponding standard one, which now support different build:
914        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
915      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
916    o pkg/obcs (seaice):
917      - add missing EXCH for uIce,vIce after applying OBCS;
918      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
919        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
920        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
921      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
922      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
923        and eedata.mth for MPI and mutlti-threaded testing.
924    o pkg/flt:
925      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
926      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
927      - fix pickup and trajectories + profiles output with multi-threads;
928      - add parameter to select group of fields to write along trajectory and
929        profile (default unchanged);
930      - only call PORT_RAND* function when flt_noise <> 0;
931      - add multi-threaded test for verification exp. flt_example.
932    o eesupp/src:
933      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
934      - USE_OMP_THREADING: check that number of threads (from eedata) matches
935        actual number (from env.var. setting).
936    o pkg/ebm:
937      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
938      - add multi-threaded test for verification exp. global_ocean_ebm
939    
940    checkpoint63b (2011/08/29)
941    o pkg/ebm:
942      - fix sign of runoff;
943      - update directly forcing fields (Qnet,EmPmR) to use standard
944        external_forcing_surf.F (remove ebm_forcing_surf.F);
945      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
946      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
947        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
948      - update global_ocean_ebm parameters file data and update output (fwd+ad).
949    o verification/matrix_example:
950      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
951        MPI and mutlti-threaded testing.
952    o pkg/matrix:
953      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
954      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
955      - fix for multi-threaded (remove DATA statement);
956      - use standard DIFFERENT_MULTIPLE function;
957      - add MATRIX_OPTIONS.h
958    o verification/matrix_example:
959       To allow to split the domain in several tiles, change the domain size
960        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
961        Western side) of land points.
962    o (*_)write_pickup:
963      - fix few bugs in mypackage_read/write_pickup.F
964      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
965        array of length 1 (was caught by compiler syntax-check).
966    o pkg/diagnostics (velocity potential solver):
967      - fix initialisation of main diagonal matrix (for overlap values)
968    o tools/build_options:
969      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
970        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
971      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
972        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
973        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
974        and use "-devel" testreport option for standard testing on baudelaire.
975    o pkg/grdchk:
976      - Assume that all gradient-check position are within the same tile
977        corresponding to global indices (iGloTile,jGloTile) and that
978        positions (i,j indices or nbeg) are local to this tile;
979      - set tile local-indices and proc. number according to tile global-indices;
980      - remove grdchkwhichproc from namelist (retired param);
981      - send adjoint gradient to all procs so that all procs print it to STDOUT;
982      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
983    o adding package bbl (Bottom Boundary Layer)
984      description in MITgcm/pkg/bbl/bbl_description.tex
985      example/test experiment in MITgcm_contrib/bbl
986    o adjoint verifications
987      - changed 5 experiments to multi-tiles
988        * global_ocean.90x40x15
989        * obcs_ctrl
990        * offline_exf_seaice
991        * tutorial_dic_adjoffline
992        * tutorial_tracer_adjsens
993        changed reference output for those that crossed tile boundaries
994        (changed choices of gradient check positions)
995      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
996      - temporary bug fix in grdchk_loc.F for obcs
997    o genmake2 & testreport
998      - add target "obj" (just for OBJFILES files) to Makefile;
999      - add option to specify FEXTRAFLAGS on command line.
1000    o pkg/mypackage:
1001      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
1002    
1003    checkpoint63a (2011/08/02)
1004    o pkg/diagnostics (velocity potential):
1005      - fix velocity-potential calculation when using OBCS: balance net inflow
1006        at each level (new S/R OBCS_DIAG_BALANCE).
1007      - fix some of the problems with OBCS in stream-function calculation.
1008    o pkg/exf/exf_readparms.F
1009      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
1010        EXF_NML_OBCS) more consistent, so that you need not have these lists
1011        in data.exf when they are not used.
1012    o optim/optim_readdata.F:
1013      - add some output about obcs variables that might help debugging
1014      - add a check about nvarlength
1015    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
1016    o pkg/diagnostics (velocity potential):
1017      - fix mask for OBCS (still problems in stream-function with OBCS);
1018      - add specific parameter (default = main code CG2D params) for solver;
1019      - in case of poor convergence, use solution corresponding to lowest residual.
1020    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
1021      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
1022      and should be avoided where possible.
1023    o model/src (rStar):
1024      - include r* effect on reference-state (PhiRef) in totPhiHyd
1025        (so that it's really the potential anomaly at the cell center);
1026        affect solution only if z* with full pressure in EOS.
1027      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
1028        update output (because of z* in totPhiHyd and viscA4 changes);
1029      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
1030        @ constant r) until interpolation at constant r is implemented.
1031    o pkg/diagnostics
1032      - fix RCENTER diagnostics in case cell center is not at interface middle
1033    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
1034      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
1035      that THETA and SALT are "conservative temperature" and "absolute
1036      salinity"
1037    o pkg/ctrl
1038      - fix computation of endrec in s/r ctrl_init_rec
1039      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
1040    o pkg/seaice/seaice_growth.F
1041      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
1042        remove then obsolete STORE directives
1043      - fix STORE directives for tice and tices, so that only the
1044        appropriate part of the fields are stored (and not the entire
1045        field); update global_ocean.cs32x15.seaice AD output.
1046      - cosmetic changes: adjust CPP flags and indentation for better
1047        legibilty
1048    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
1049      Chris Wilson)
1050    o pkg/gmredi:
1051       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
1052       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
1053    
1054    checkpoint63  (2011/07/11)
1055    o pkg/exch2:
1056     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
1057     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
1058       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
1059       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
1060    o pkg/diagnostics:
1061     - deal with pairs of post-processed diags which are computed together; in
1062       particular, re-order list of diags within 1 file to save 2nd computation.
1063     - add S/R to compute velocity stream-function (called after velocity-potential
1064       calculation) from divergence free transport -> new diagnostics "PsiVEL".
1065     - add parameter to select grid-point location where PsiVEL == 0.
1066    o eesupp/src:
1067       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
1068       (specific S/R needed with exch2 topology - for now, just print an error msg)
1069    o pkg/shelfice
1070     - Implement friction velocity-dependent transfer coefficients following
1071       Holland and Jenkins, JPO, 1999
1072       Original code by M. Losch with small modifs.
1073       Enable with CPP option SHI_ALLOW_GAMMAFRICT
1074       and runtime flag SHELFICEuseGammaFrict
1075    o verification lab_sea & global_ocean.cs32x15:
1076     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
1077       does not miss some dependencies (but is slower) and also works with many files
1078       (default makedepend limitation for AD built).
1079     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
1080    o pkg/diagnostics:
1081     - add run-time parameter "useMissingValue" (def=False) to fill land-point
1082        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
1083       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
1084     - Extend the use of "missing_value" setting from data.diagnostics for the case
1085       of counter-diagnostics (where fraction-weight is zero). This applies both to
1086       MNC and MDS output files.
1087    o pkg/seaice/seaice_growth.F:
1088      - add 'a priori' cap of latent heat flux based on actual mass considerations
1089        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
1090        non-legacy seaice_solve4temp.
1091      - add diagnostic of the residual sublimation freshwater flux (the freshwater
1092        flux taken from the ocean if the total actual latent heat fluxes exceed
1093        the maximum)
1094      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
1095       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
1096      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
1097       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
1098      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
1099      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
1100    o verification 1D_ocean_ice_column:
1101       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
1102       update results
1103    o pkg/diagnostics:
1104     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
1105       which are not filled-up but computed from other diags ; In this case, the mate
1106       diag points to the primary (filled-up) diag to used for post processing.
1107     - Update Velocity-potential computation using post-processed diag framework.
1108     ==> Change the ordering of fields and time-periods in MDS output file
1109       when using periodic averaging: now writes one time record with the full set
1110       of fields for this time period, then the next time reccord (it used to be
1111       one field with the full set of time records then the next field).
1112         Note: this is now similar to NetCDF (MNC) output file. <==
1113    
1114    checkpoint62z (2011/06/21)
1115    o adjoint monitor:
1116     - Add adjoint monitor output for packages exf, seaice
1117       and update relevant testreport output
1118    o pkg/seaice:
1119     - re-order diags inits so that they appear in order in available_diagnostics.log
1120     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
1121       area/heff/hsnow preceeding thermodynamic growth/melt.
1122     - modified diag: SIdA; output actual effect, as the description states.
1123     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
1124     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
1125       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
1126        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
1127     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
1128     - added diagnostics for seaice generic tracers (SItr*).
1129     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
1130     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
1131     I. Fenty: 18-Jun-2011:
1132     Minor changes to seaice package:
1133     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
1134        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
1135       - Differentiated "regularization variables" from "floor variables"
1136        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
1137        * hiceMin became SEAICE_hice_reg (old hiceMin)
1138          (with _reg meaning regularization variable)
1139       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
1140        so as to ensure energy conservation when going between phases
1141      - A22 was not used anywhere
1142     2) Changed regularization procedure for heffActual and hsnowActual to ensure
1143        well-boundedness and smooth adjoint in seaice_growth.F
1144     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
1145        because the old regularization always set heffActual >= 0.05 cm
1146     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
1147        on AREA when HEFF > 0.
1148      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
1149        requiring that DISABLE_AREA_FLOOR *not* be defined
1150     Affected verifications:
1151      - 1D_ocean_ice_column (output.txt output_adm.txt)
1152      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
1153    o pkg/diagnostics:
1154      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
1155      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
1156        (was _RL, now integer) with option = 0 to retrieve all levels.
1157      - add pieces of code to compute velocity potential at each level (new diagnostics
1158        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
1159        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
1160      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
1161        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
1162        and in diagnostics_fract_fill.F (do not need a valid pointer for the
1163        diagnostics counter-mate); check that definition of counter-diagnostic
1164        includes a valid counter-mate (in diagnostics_set_levels.F).
1165    o model/src (rStar):
1166      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
1167        affect solution only if z* with full pressure in EOS;
1168        update output of test-exp global_ocean.90x40x15.
1169    o pkg/seaice:
1170      - introduce siEps=1e-5 parameter
1171      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
1172      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
1173      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
1174        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
1175        as well as ice cover age and ridging index (attached to AREA).
1176        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
1177        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
1178        Up to SItrMaxNum=3 tracers can be used simultaneously.
1179    o pkg/salt_plume:
1180      -introduce SPsalFRAC run time parameter that sets the fraction of the
1181       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
1182       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
1183    o model debug options:
1184      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
1185        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
1186      - Refine debug-msg printing selection (3 new levels):
1187        debugMode  : controls printing of debug messages (sequence of S/R calls).
1188        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
1189         debLevZero =  0 ; /* level of disabled aux. msg printing */
1190         debLevA =  1 ; /* level of minimum  aux. msg printing */
1191         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
1192         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
1193         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
1194         debLevE =  5 ; /* level of extensive debug printing */
1195        New debugLevel default: with default debugMode value (=F),
1196          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
1197          and if debugMode=T, default debugLevel = 4 (debLevD).
1198        Relation with previous settings:
1199         debLevB (=2) corresponds to former debLevA (=1)
1200         debLevD (=4) corresponds to former debLevB (=2)
1201        Note:
1202         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
1203         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
1204            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
1205      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
1206        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
1207    o pkg/obcs:
1208      - change OBCSfixTopo default from True to False (should not change the results);
1209        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1210    o pkg/thsice:
1211      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1212        2nd layer seaice sublimation (unlikely to happen)
1213      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1214        done in gad_advection & seaice_advection).
1215    o adjoint:
1216      bug fix spotted by Gael Forget:
1217      seaice_advection and thsice_advection still had
1218      legacy CPP options to avoid CS corner updates for adjoint
1219    o pkg/seaice:
1220      => Change some of the defaults (2011/05/29):
1221         - change SEAICEuseFluxForm default (from False to True)
1222         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1223         And print warnings if DIFF1 is not set in data.seaice and centered
1224          avection scheme is used without any diffusion.
1225      also:
1226      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1227      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1228      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1229        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1230        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1231      update results of test exp.:
1232         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1233             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1234             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1235         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1236         seaice_obcs: output (SEAICEuseFluxForm=T)
1237      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1238          for standard fwd & AD lab_sea tests (to keep the same output).
1239    o pkg/seaice/seaice_growth.F:
1240      - use Ian Fenty's capping formulas for actual ice
1241      thickness thoughout EVOLUTION branch.
1242      - put treatment pathological case #2) in CPP brackets
1243      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1244      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1245    o pkg/seaice:
1246      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1247      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1248      also pass fac as a param, which can be 1. (to update the tendency
1249      field) or the time step (to update the field itself).
1250      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1251      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1252      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1253      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1254      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1255    o pkg/seaice:
1256      diffusion with centered advection scheme (diffus.F & advect.F):
1257      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1258        to just compute the laplacian of input-field.
1259      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1260      - fix flux-form version in diffus.F to conserve tracer.
1261      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1262       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1263    
1264    checkpoint62y (2011/05/26)
1265    o pkg/seaice:
1266     - seaice_growth.F : in EVOLUTION branch, always include
1267       a_QSWbyATM_cover in qnet (as it should be).
1268     - verification/global_ocean.cs32x15 : update results accordingly
1269       (output.seaice.txt output_adm.seaice.txt).
1270    o pkg/seaice + obcs:
1271     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1272       equivalent of assuming no tracer gradient outside the OB region.
1273       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1274     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1275       after changes above);
1276     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1277       only at OB location (instead of over a band of OLx width).
1278    o pkg/seaice:
1279     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1280       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1281    o pkg/obcs:
1282      - split header file "OBCS.h" into 4 separated files:
1283        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1284       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1285         (contain no conditional statement which depends on OBCS options).
1286      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1287        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1288    o ctrl, cost, grdchk & autodiff pkgs:
1289      - make options file more standard (like other {PKG}_OPTIONS.h file but
1290        with AD_CONFIG.h); clean-up some of the included header files.
1291    o pkg/obcs:
1292      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1293      - apply tracer OB values to tracer field only at OB location (instead of
1294        over a band of OLx width)
1295      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1296      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1297        obcs_apply_tloc.F & obcs_apply_sloc.F
1298    o obcs in model/src:
1299      - call OBCS_APPLY_W only if NonHydrostatic.
1300      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1301      - reset dEtaHdt and wVel to zero outside OB interior region ;
1302      - leave tracer unchanged outside OB interior region: This has no effect
1303        on the solution but just to prevent unrealistic tracer value outside OB.
1304      - zero out velocity outside OB interior region: This has no effect on
1305        the solution but just to prevent unrealistic velocity outside OB.
1306    o obcs and non-lin free-surf:
1307       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1308       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1309       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1310       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1311       update results of test-exp. exp4(nlfs).
1312    o exp4 (nlfs) test-exp:
1313       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1314       with NonLin-FreeSurf); update output.nlfs.txt
1315    o obcs and 2d/3d solver norm:
1316       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1317       and outside OB interior region (will allow to place OB further inside the
1318       domain). Depending on the domain, can affects cg2d-Norm (previous
1319       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1320       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1321       e.g. in tutorial_plume_on_slope.
1322      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1323    o pkg rbcs:
1324      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1325      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1326    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1327    o pkg/shelfice/shelfice_init_fixed.F
1328      fix CPP-flag combinations
1329    o pkg/seaice: Merge iceage code of Pierre Rampal
1330      * update/change/correct ice age calculations
1331      * add age updates for pathological cases
1332      Probably needs more testing...
1333    
1334    checkpoint62x (2011/05/13)
1335    o pkg/mom_vecinv:
1336       high-order vorticity scheme: use interior masks (maskInW & S)
1337       to zero-out (outside OB) gradient of vorticity.
1338    o verification exp.:
1339       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1340       hs94.128x64x5 and seaice_obcs ; update results.
1341    o pkg/obcs:
1342      fix bug in OBeta for YZ sections in obcs_exf_load.F
1343    o pkg/ctrl, pkg/shelfice, and optim:
1344      - add new control variable xx_shifwflx (fresh water flux underneath ice
1345        shelves). This is almost as tedious as obcs-ctrl, because the
1346        variables needs its own mask.
1347      - add a cost function term that penalizes the deviation of xx_shifwflx
1348        from the first guess (zero) in analogy to other control variables
1349    o pkg/shelfice:
1350      - start basic adjoint
1351    o pkg/ctrl:
1352      - remove extra 2D field "for good measure" when initializing in
1353        ctrl_set_globfld_[xy/xz/yz].F
1354      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1355      - improve error messages in ctrl_set_unpack_*
1356    o OBC implementation in momentum:
1357       use interior masks (maskInC,W & S) in momentum S/R:
1358       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1359       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1360       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1361       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1362       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1363        (and also with Leith/Smagorinsky harmonic-viscosity).
1364       Update output of experiment dome and exp4 (+nlfs).
1365    o exp4 test-exp:
1366      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1367        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1368        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1369        time-varying OB at Western-side for wVel (NonHyd); update output.
1370      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1371        and biharmonic-viscosity ; also use prescribed time varying OB.
1372    o pkg/obcs:
1373      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1374    o model/src:
1375      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1376      - initialise startTime & nIter0 with unlikely values: allows to set one
1377        from the other without ambiguity.
1378    o seaice_obcs test-exp.:
1379      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1380    o pkg/obcs:
1381      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1382        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1383    o pkg/seaice:
1384      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1385        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1386      - fixed bug in the initialization of sea ice salinity variable HSALT
1387        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1388    o fizhi-cs test exp.:
1389       switch reference output convention for these 2 non-standard test-exp,
1390        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1391          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1392       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1393    o model/inc:
1394      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1395        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1396    o pkg/seaice:
1397      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1398    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1399      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1400        and initial HSALT
1401    
1402    checkpoint62w (2011/04/26)
1403    o pkg/mom_fluxform:
1404      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1405      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1406      - update output of exp. global_ocean.90x40x15
1407    o pkg/mom_vecinv:
1408      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1409    o update seaice exp.:
1410      use more consistent parameter values (remove "backward compatability only":
1411       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1412      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1413       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1414    o update test-exp global_ocean.90x40x15:
1415      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1416      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1417      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1418      o turn on zStar & viscA4 in standard set-up (dir input/)
1419        and update output files: output.txt & output.dwnslp.txt
1420    o new AD-test experiment: obcs_ctrl
1421      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1422    o pkg/dic:
1423      fix two bugs in handling water vapour pressure in carbonate chemistry
1424      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1425      (add DIC Option = WATERVAP_BUG to recover old results)
1426      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1427    o adding allowInteriorFreezing option to check for water below freezing point
1428      at depth and bring the negative heat anomaly to the surface level
1429    o pkgs _fields_load:
1430      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1431      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1432        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1433        rbcs to get interpolation weights and time reccord number.
1434      - fix multi-threading in aim_fields_load.F
1435      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1436    o external_fields_load:
1437      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1438       interpolation weights) to use in a periodic time-series ; do not divide by
1439       time-step to convert to integer:
1440       - this fixes case where externForcingPeriod is not multiple of time-step
1441          (Thanks to Christopher L. Wolfe)
1442       - this fixes case where externForcingPeriod is an odd multiple of time-step
1443         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1444      store index of time-record which is currently loaded:
1445       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1446       - needed for the adjoint but not yet used because of extensive recomputations;
1447         (to be fixed soon)
1448    
1449    checkpoint62v (2011/04/02)
1450    o verification/1D_ocean_ice_column added to test Ian Fenty's
1451      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1452    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1453      (new velocity statistics after changing maskInW & maskInS definition)
1454    o pkg/generic_advdiff with OBCS:
1455      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1456      equivalent to assumption of no tracer gradient outside the OB region.
1457      This will affect the results if using obcs+biharmonic diffusion.
1458      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1459    o pkg/obcs:
1460      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1461      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1462      in Interior region. No impact on solution but affects Velocity monitor stats.
1463    o pkg/ptracers (adjoint)
1464      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1465      tape file for each tracer
1466    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1467      of parts of the adjoint code at run time. For now, there are only
1468      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1469      parameters are set in data.pkg.
1470      This is the lazy coward's version of doing this, but still useful for
1471      debugging. In order to do it right, everything needs to be moved to
1472      pkg/autodiff.
1473    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1474      the end; this fixes the adjoint balancing code for open boundaries.
1475    o pkg/ctrl:
1476      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1477        xx_${varname}period =   0.,  means time-independent control part
1478        xx_${varname}period = -12., means one-year-periodic monthly control part
1479      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1480        clean up ctrl_init a little, remove unused variables
1481      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1482      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1483    
1484    checkpoint62u (2011/03/15)
1485    o model/src:
1486      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1487        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1488      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1489        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1490    o pkg/ctrl/obcs/ecco:
1491      - remove obsolete, unused, and partially broken code:
1492        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1493        ALLOW_CTRL_OBCS_BALANCE
1494      - put a stop statement into ecco/cost_obcsvol.F, but also add
1495        cost_obcsvol to ecco_ad_diff.list
1496    o pkg/ecco: fix counting cost function contributions for obcs (code
1497      by Matt M.) and diffkr for diagnostics
1498    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1499      add cost penalty terms for initial uvel, vvel, eta controls
1500      and I/O for prior error files
1501    o pkg/mdsio:
1502       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1503       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1504       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1505    o pkg/ctrl:
1506     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1507       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1508       unused and superfluous variables
1509     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1510    o pkg/ecco
1511     - enable adjoint of Stevens OB
1512    o pkg/ctrl/ecco/grdchk:
1513      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1514        Fortunately, we do not have any tests for the numerous cpp-flagged
1515        option of "obcs as control parameters" so we will never know
1516        if this is an improvement (but at least now things compile).
1517      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1518      - fix some problems within never used ifdefs to make the code compile
1519    o pkg/obcs:
1520     - Refine Interior mask definition to work with more complex OB (e.g.
1521       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1522       read in Interior mask from file. Check if Interior mask is consistent
1523       with OB list of indices.
1524    o pkg/seaice
1525     - beginning code for a seaice tracer package,
1526       but currently only used for seaice age: SEAICE_AGE
1527       SEAICE_num = 4
1528       iTracer = 1: area-weighted ice age
1529               = 2: volume-weighted ice age
1530               = 3, 4: template for one-year vs. multi-year ice
1531       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1532       SEAICE_num
1533    
1534    checkpoint62t (2011/03/05)
1535    o pkg/obcs:
1536     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1537       then normal component. This ensures that the normal component is set
1538       correctly even when it conficts with tangential setting from an other OB.
1539       Affects results of test-experiment seaice_obcs: update the output.txt
1540    o pkg/obcs:
1541     - add code to monitor statistics of dynamical fields at OB.
1542     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1543       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1544       - change default: balance the Net inflow through all OB (instead of balancing
1545         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1546     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1547       to match Nortern OB inflow (OBCS_balanceFacN=0).
1548    o pkg/seaice:
1549     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1550    o pkg/seaice (seaice_growth v 1.113):
1551     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1552       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1553       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1554       runtime flag SEAICEareaFormula is kept but is inactive
1555    o model/src:
1556     - add new param to scale curvilinear grid distance and area when using
1557       a different sphere radius from the grid-files.
1558     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1559    o adjoint:
1560     - enable adjoint of Stevens OB
1561     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1562       (a bit delicate because of potentially modified adj. common block structure;
1563       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1564    
1565    checkpoint62s (2011/02/15)
1566    o pkg/seaice (seaice_growth v 1.112):
1567     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1568       computing the ice cover tendency from effective thickness tendencies. Include
1569       Ian Fenty's formula.
1570     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1571       SEAICEareaFormula.
1572     - simplify notations for the various d_HEFF/d_AREA terms.
1573    o pkg/gmredi:
1574     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1575       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1576       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1577    o pkg/seaice (seaice_growth v 1.111):
1578     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1579     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1580       also melt ice.
1581    o pkg/seaice:
1582     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1583     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1584    o pkg/cheapaml:
1585     - from Nico Wienders: New version of this package.
1586    o pkg/flt:
1587     - add CPP options to prevent floats to re-enter the opposite side of
1588       a periodic domain (default: keep periodicity)
1589    o pkg/gmredi:
1590     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1591       (needed for multi-dim advection).
1592     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1593    o model/src:
1594     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1595    o tutorial_tracer_adjsens
1596     - extend to NLFS and replace maskC by hFacC
1597       (change reference output accordingly)
1598    
1599    checkpoint62r (2011/01/24)
1600    o testreport:
1601     - add option -deloutp (-do) to remove output file after successful run
1602     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1603       extract exact list of procs from this file ; adjust COMMAND by
1604       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1605  o pkg/ecco: replace old ineffective way of penalizing deviations from  o pkg/ecco: replace old ineffective way of penalizing deviations from
1606    first guess (of obcs) with code by Matt Mazloff    first guess (of obcs) with code by Matt Mazloff
1607  o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without  o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1608    exf/cal    exf/cal
1609    - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl    - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1610      and handle case of obcs?period == 0      and handle case of obcs?period == 0
1611      Not affected by these changes: There is still an inconsistency in      Not affected by these changes: There is still an inconsistency in
1612      the computation of start/endrec for the obcs variables for ALLOW_CAL      the computation of start/endrec for the obcs variables for ALLOW_CAL
1613      defined (see comment by Menemenlis, 7-Mar-2003)      defined (see comment by Menemenlis, 7-Mar-2003)
1614    - make S/R ctrl_get_gen_rec return something meaningful even if    - make S/R ctrl_get_gen_rec return something meaningful even if
1615      ALLOW_CAL is not defined      ALLOW_CAL is not defined
1616    - ctrl_getobcs?: simplify code so that it does not need to use    - ctrl_getobcs?: simplify code so that it does not need to use
1617                     S/R exf_swapfields                     S/R exf_swapfields
1618  o testreport:  o testreport:
1619     allow to test MPI with different number of processors for each experiment:     allow to test MPI with different number of processors for each experiment:
# Line 24  o testreport: Line 1622  o testreport:
1622  o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:  o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1623    alleviate the need for additional 3D tapes when using    alleviate the need for additional 3D tapes when using
1624    the non-inear free surface in the adjoint. This is done    the non-inear free surface in the adjoint. This is done
1625    by adding an 'update' of hfacc etc. to their current    by adding an 'update' of hfacc etc. to their current
1626    value at the beginning of forward_step.F.    value at the beginning of forward_step.F.
1627  o pkg/seaice  o pkg/seaice
1628    seaice_lsr: move stress-divergence computations out of outer pseudo-    seaice_lsr: move stress-divergence computations out of outer pseudo-
1629    timestepping loop    timestepping loop

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