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revision 1.1355 by jmc, Wed Dec 22 00:41:46 2010 UTC revision 1.1625 by jmc, Sat Mar 17 14:58:45 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63k (2012/03/17)
8    o model/src:
9       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
10         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
11       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
12         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
13    o model/src: solve_*diagonal.F
14       - replace division with multiplication by inverse (similar to original version)
15         update output of AD exp. global_ocean.90x40x15.
16       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
17         to enable the use of the vectorized & differentiable solve_tridiagonal.F
18       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
19         vertical advection (to get solve_tridiagonal tested in AD mode).
20    o pkg/seaice: ECCO-CLIVAR merge:
21      1. seaice AREA relaxation
22         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
23         * runtime flag: SEAICE_tauAreaObsRelax
24      2. modified global mean cost imbalance code: CPP option
25          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
26    o another iteration on solve_*diagonal.F
27       Make choices independent of AUTODIFF
28       Default will be the adjoinable vectorized version.
29       Alternative choices are:
30       * non-adjoinable original version with low memory footprint:
31         #define SOLVE_DIAGONAL_LOWMEMORY
32       * still adjoinable but does not vectorize (k as inner-most loop):
33         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
34    o testreport
35     - add option to use a home made wrapper around "make"
36     - remove MITGCM_IEEE env. variable (no longer active)
37    o pkg/shelfice
38     - improve computation of friction velocity for velocity dependent
39       exchange coefficients: include velocities into SHELFICEBoundaryLayer
40       block to average velocities vertically
41     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
42    o Modify diagonal solvers, now three versions (upon request):
43      #ifndef SOLVE_DIAGONAL_AUTODIFF
44        1. default version (dating back a while ago)
45      #else /* def SOLVE_DIAGONAL_AUTODIFF */
46      # ifdef SOLVE_DIAGONAL_KINNER
47        2. adjoinable version with k-innermost loop (G. Forget)
48      # else
49        3. adjoinable vectorized version of 2.
50      # endif
51      #endif /* SOLVE_DIAGONAL_AUTODIFF */
52      All flags are currently set within routines, but could/should be moved to CPP-options.
53      Array bounds for 1. are as before, for 2.,3. cover the entire domain
54      (could be changed for 1. too).
55    o verification/lab_sea (fwd):
56      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
57        use 7 categories (except hb87), new solve4temp params (except salt_plume),
58        constant salinity (=4) or variable salinity (salt_plume) done through
59        SItracer.
60    o pkg/seaice:
61      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
62      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
63         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
64        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
65        SEAICE_freeze got retired) but already better than previously with
66        SEAICE_freeze=123456.7 deg.C;
67      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
68        (safer multi-threaded setting); always set SEAICEuseEVP;
69      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
70        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
71        stop if multiple specifications for the same coeff; make sure default
72        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
73    o pkg/obcs:
74      - allow to switch to upwind 1rst order advection scheme for the advective
75        flux computation at the open-boundary; disabled for adjoint built.
76    o pkg/ptracers:
77      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
78      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
79      - add parameter to decide when to start a tracer; use internal flag to
80        know which tracer to step-forward; switch this internal flag at the top
81        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
82        for adjoint built.
83    o pkg/seaice:
84      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
85      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
86      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
87    o pkg/ecco:
88      - fix writing of output file DiagnosCost_ClimSalt/Theta
89        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
90    o pkg/seaice:
91      - add missing initialisation of COR_ICE array in dynsolver.F
92      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
93        compiled either way, and is tested in all exps (multidim was only tested
94        in lab_sea ad before).
95      - cosmetic change to prepare for future addition of ITD. no change to results.
96        no defaults change.
97      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
98      - by lack of adequate verification experiments, I further used custom versions
99        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
100        should be correct.
101      - avoid recomputations in ad.
102    o array initialisation in adjoint mode:
103      1) pkg/mom_common/mom_calc_ke.F:
104        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
105        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
106        part this initialisation is gone, resulting in Floating Point Exception
107        (caught by open64 compiler with debug option).
108      2) model/src/convective_weights.F
109        set output convectCount over the full array range (instead of doing
110        an update): this fix a similar issue when called within recomputation (adjoint)
111        which could by-pass the initialisation (normally done in the caller S/R).
112    o pkg/seaice:
113      - final version of turbulent flux params, as agreed at MIT ice meet:
114           SEAICE_mcPheePiston (default is ~ 0.000875)
115           SEAICE_mcPheeTaper (default is 0.)
116           SEAICE_frazilFrac (defualt is 1.)
117           SEAICE_mcPheeStepFunc (default is false)
118      - changes results at trunction error level
119      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
120    o added pkg/frazil:
121      - see frazil_description.tex for details
122      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
123    o pkg/shelfice/shelfice_thermodynamics.F
124      - fix exponents for velocity dependent exchange coefficients: change
125        from 2/3(=0) to 0.66666666666666667
126      - move computation of velocity dependent exchange coefficients into
127        separate loop, so that it applies to both thermodynamics
128      - move some divisions by constants out of loops
129    
130    checkpoint63j (2012/02/16)
131    o pkg/seaice:
132      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
133      - SItracer:  added run time params, and allow coupling to ocn salinity.
134    o pkg/seaice: remove (almost) all divisions by constants within loops
135      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
136      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
137      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
138      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
139    o pkg/seaice :
140      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
141        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
142      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
143      - add permanent SItflux diag that corresponds to TFLUX but includes
144        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
145      - allow activation/testing of a fix for suspected missing term in
146        ocn-ice heat budget (to be confirmed). To test this, you want to
147        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
148        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
149      - no change in results, fwd or ad.
150    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
151      - switch to variable freezing point.
152           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
153      - bug fix : the sublimation term that was missing is now activated.
154           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
155      - bug fix : flooding sign term for SIsal0.NE.0.
156           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
157    o pkg/seaice:
158      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
159        is now the default, and the old default constant freezing point is recovered
160        with SEAICE_tempFrz0    = -1.96,
161             SEAICE_dTempFrz_dS = 0.,
162      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
163      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
164      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
165        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
166      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
167        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
168      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
169        seaice_growth r149 for legacy branch (no results change).
170      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
171        from I. Fenty).
172      - results did not change except for global_ocean.cs32x15, mostly due to the
173        switch to variable freezing point (see above item for detail).
174    o pkg/thsice:
175      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
176        seawater freezing in thsice_calc_thickn (not used).
177    o pkg/seaice: turbulent flux term specification via run time params.
178      - replace CPP switches with run time switches to facilitate testing
179      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
180                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
181      - added runtime parameter : SEAICEturbFluxFormula
182      - move Mcphee constants to SEAICE_PARAMS.h
183      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
184                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
185                 remove seaice_summary call (moved to seaice_init_fixed)
186      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
187        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
188      - seaice_summary.F : add missing report of read turbulent flux term set up
189                           and SITRACER.
190      - seaice_check.F : check range; inform and stop if retired CPPs are used
191                         (incl. SEAICE_AGE).
192      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
193             CPP switch, same computation as before for the different options.
194      - change results at the truncation level.
195    o pkg/seaice:
196      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
197        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
198        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
199      - update verification/*/input*/data.seaice:
200        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
201        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
202        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
203        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
204    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
205      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
206        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
207        difference in results only due to machine truncation.
208      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
209        MaykutPolySatVap; keep MIN_LWDOWN.
210      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
211      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
212        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
213    o pkg/salt_plume:
214      - isolate saltPlumeFlux array exch into a specific S/R called from
215        do_oceanic_phys.F
216      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
217    o verification:
218      - move untested set-up to MITgcm_contrib/verification_other.
219    o pkg/seaice:
220      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
221    o pkg/seaice:
222      - seaice_solve4temp.F (keeping results unchanged):
223        * add 2 future run-time params to select which saturation vapor pressure
224          formula is used and how post-iteration fluxes are set.
225          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
226        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
227          the linearized expression to stay consistent with tsurf finding.
228      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
229        can be < 0.
230    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
231      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
232        conductive heat flux F_c , and add it explicitly when updating tsurf as
233        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
234        so that now F_ia has a consistent meaning through the entire routine.
235        This causes differences at truncation level: update output of fwd exp.
236        global_ocean.cs32x15.seaice.
237    o pkg/seaice:
238      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
239        of arrays, sign/direction of fluxes; no effect on results.
240      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
241        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
242        note: this should have been done before changing celsius2K default.
243      - to keep results unchanged, add back old value of celsius2K in verification
244        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
245      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
246        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
247        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
248        freezing temp is consistent with value in seaice_growth.F ; this causes
249        differences at machine truncation level: update lab_sea AD output (3/4).
250    o pkg/seaice:
251      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
252        and climsst/sss even when using seaice (to prevent calculation that might
253        use SST on land); does not affect any verification exp.
254      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
255        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
256    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
257      over land (non-legacy code)
258    o vectorize salt_plume package:
259      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
260      - this code computes plumebk everywhere (also over land), thus requires
261        code to avoid divisions by zero and catch the case of kLev=Nr.
262      - efficiency of salt_plume_frac is still sub-optimal
263    o tools (genmake2):
264      - fix makefile NAME specification (option: -makefile NAME) by adding
265        "-f $MAKEFILE" in few places where it was missing including makedepend
266        command (contribution from Paul).
267    
268    checkpoint63i (2012/01/24)
269    o model/src:
270      - add factorized versions of some EOS code to find_rho.F,
271        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
272    o model/src:
273      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
274      - change default celsius2K from 273.16 to 273.15
275      - to keep results unchanged, add back old value of celsius2K in verification
276        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
277         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
278    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
279      to make TAF generate vectorizable code
280    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
281       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
282       have flags that do this more efficiently.
283    o pkg/diagnostics/diagstats_calc.F
284      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
285    o pkg/obcs (with exch2):
286      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
287        and remove code (in obcs_readparms.F) which was based on EXCH of indices
288        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
289    o pkg/exf and seaice exp:
290      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
291        so that switching off area & heff advection flags does not affect results.
292      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
293      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
294        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
295        results of verification experiments: 1D_ocean_ice_column(fwd),
296        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
297        and offline_exf_seaice (all 4).
298    o pkg/seaice:
299      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
300        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
301      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
302        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
303        not multi-dim advection;
304      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
305        SHORTWAVE_HEATING #undef.
306    o optim: make Makefile more robust (?)
307    o pkg/obcs:
308      * fix treatment of obcs_read_pickup for TAF
309    o pkg/shelfice:
310      * add missing initialisation of num_shifwflx
311      * new adjoint verification exp. for isomip
312      * change Prandtl and Schmidt numbers from generic formulations
313        (in terms of model diffus. and visc.) to separate runtime
314        parameters, with Holland and Jenkins (1999) default values.
315    o pkg/exf (interpolation):
316      - extended input field (2 rows) near the N & S poles:
317        * fill in with the symetric value (when even Nb of data in longitude)
318        * add average value at the poles only for scalar quantities ; for vector
319          component interpolation, skip the averaging and keep duplicated values,
320          unless the 2 components have same location (uvInterp=T) in which case
321          interpolate the 2 components together using S/R EXF_INTERP_UV.
322      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
323        together: this allows to account properly for local orientation when
324        averaging at N & S pole.
325      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
326        exf-interpolation near N & S poles. Undef by default.
327      - add debug check/print on 1rst iter if debugLevel >=2.
328    o pkg/exf:
329      - change masking flags definition (no longer "parameter"), put them in
330        common block and set them in S/R EXF_INIT_FIXED.
331      - change recognized masking flag from s,u,v to c,w,s since the mask
332        to use (maskC,W,S) depends on position on model grid and has little to
333        do with scalar/vector difference; fix masking if using P-coordinates.
334      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
335        and update results of exp. global_with_exf (x2).
336      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
337    o pkg/obcs
338      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
339    o pkg/exf (interpolation):
340      - assume periodicity in X only if input field cover full longitude range.
341      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
342        and should vectorise).
343      - fix input lat of the 2 added row (in case we provide N.pole data).
344    
345    checkpoint63h (2011/12/30)
346    o pkg/seaice:
347      - change declaration of UVM from _RL to _RS in order to get B-grid
348        uIce,vIce monitor when _RS = real*4
349    o pkg/offline:
350      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
351      - compute vertical velocity if not read from file (switch on exactConserv
352        & staggerTimeStep);
353      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
354    o verification:
355      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
356        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
357        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
358      - update output of exp. global_ocean.cs32x15.viscA4 after changing
359        grid-file angles (used here for coriolis-3d);
360      - remove (or gzip) few files not needed to run fizhi-cs experiments.
361    o pkg/exf (vector interpolation):
362      - rotate vector component toward local grid-axis orientation using grid-angles
363        (stored in GRID.h) instead of locally computed rotation angle; keep old code
364        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
365    o pkg/seaice:
366      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
367        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
368    o pkg/PKG_OPTIONS.h files:
369      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
370        outside of the #ifdef ALLOW_THISPKG / #endif block.
371      - update verification/*/code/PKG_OPTIONS.h files.
372    o add a verification experiment (offline_exf_seaice/input.seaice) that test
373      the B-grid LSOR solver
374    o pkg/seaice: sort out emissivity and long wave radiation step 2:
375      - add emissivity for snow and ice as new run-time parameters
376        (unfortunately) that default to the corresponding exf values; this
377        changes results in most verification experiments so that for backward
378        compatibility these parameter have to be set explicitly to inconsistent
379        values (ugly);
380      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
381        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
382        until we agree how to handle this bug properly
383    o pkg/exf (interpolation):
384      - add a set of run-time param ({inputfield}_interpMethod), one for
385        each interpolated input field, to select the interpolation method
386        with a value of zero switching off the interpolation;
387      - print interpolation parameters to standard output;
388      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
389        (to use instead runoff_interpMethod=0 in data.exf).
390      - simplify default setting of interpolation parameters (for all fields,
391        set position to match model grid cell-center position, leading to trivial
392        interpolation in case of regular Lat-Lon grid) and fix for the case of
393        non-uniform delY.
394    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
395       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
396       this factor is absolutely required, because the lw exitance (= out-going
397       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
398       where the reflectivity rho = 1-emissivity for conservation reasons. Once
399       this is established, we can remove the CPP-Flag (if we want to).
400    o pkg/seaice:
401      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
402        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
403      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
404        what the name implies (and not emissivity*BoltzmannConstant), this means
405        the old default value of 5.5e-8 now means
406        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
407        S/R exf_readparms
408      - FV-discretization of the B-grid LSOR solver, turn on with
409        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
410        of the calling routine dynsolver, so that B and C-grid code look a
411        little more alike.
412      - fix index bugs in ostres.F (B-grid code)
413    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
414    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
415      default for SEAICE_emissivity, if useEXF; requires setting a wrong
416      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
417      backward compatiblity
418    o model/src: use sigmaR in calc_ivdc
419    
420    checkpoint63g (2011/12/16)
421    o pkg/seaice/seaice_growth.F:
422      fix heat conservation of the coupled ocean-seaice system.
423      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
424      solid vs liquid water treatment is resolved via QNET.
425    o pkg/seaice/seaice_growth.F:
426      add missing term for sublimation in saltFlux, which was breaking conservation.
427    o pkg/seaice/seaice_model.F:
428      Remove this patholigical case treatment in evolution branch,
429      where it is un-necessary and breaks conservation.
430      Update global_ocean.cs32x15/results accordingly for
431      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
432    o model/src:
433      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
434      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
435    o pkg/obcs:
436      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
437      tendency for temperature and salinity that is then applied to update
438      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
439      horizontal advection and diffusion contributions on the boundary (in
440      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
441      removing the mask in S/R timestep_tracer. The advantage of this approach is
442      that the updated tracer values include contributions from the surface
443      forcing and vertical diffusion.
444      This modification changes exp4.stevens because of vertical diffusion.
445    o model/src:
446      change non-curvilinear grid setting to also work with exch2 + blank tiles:
447      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
448        face dimensions.
449      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
450        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
451        and INI_SPHERICAL_POLAR_GRID.
452      change test-experiment global_ocean.90x40x15:
453      - split the domain in many more tiles (9x4 tiles of 10x10 each);
454      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
455      - update results of both test (std & dwnslp).
456    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
457       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
458    o model/src:
459      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
460        and fix initialisation when using sigma-coords.
461    o model/src:
462     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
463       to their current value at the beginning of forward_step.F": add a new run-time
464       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
465     - set doResetHFactors=T in the following test exp:
466        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
467        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
468        and tutorial_global_oce_in_p (nonLinFS in p)
469    o pkg/ecco
470      - added IES cost term
471    o verification/advect_xz
472      - scale down the depth by 1/100 (from 200 km to just 2.km)
473      - add secondary test using divergent flow, r-star and implicit vertical advection.
474      - add note (check_conserve_TS.txt) and matlab script to check global
475        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
476    o pkg/rbcs:
477      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
478    o pkg/obcs (Stevens BCs):
479      - fix various problems in the phase speed computations of the Stevens
480        boundary conditions:
481        - sign error for western and southern boundaries,
482        - time tendencies were underestimated by factor of dTracerLev and some just
483          zero (for multidim advection schemes) -> now estimate time tendencies
484          from difference between previous (n) time level and the one before (n-1);
485          this requires storing a field per tracer per boundary, also in the pickup
486          files.
487        - replace deltaTmom in cflMer/Zon computation with dTracerLev
488        - set default phase velocity to cflMer/Zon
489      - update verification experiment exp4.stevens
490    o pkg/generic_advdiff (implicit_r):
491      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
492        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
493      - fix implicit vertical diffusion or advection with NonLin FreeSurf
494        (was using current recip_hFacC instead of future recip_hFacC): set future
495        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
496        solver S/R ;
497      - fill diagnostics of vertical advective fluxes (computed from tendency)
498        when using implicit vert. advection;
499      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
500         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
501         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
502         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
503    o pkg/diagnostics:
504      - add diags for T & S tendency which goes through Adams-Bashforth.
505    
506    checkpoint63f (2011/11/30)
507    o pkg/obcs/obcs_calc_stevens.F:
508      - join some loops to reduce number of if-statements
509      - fix a bug in code for northern and southern boundaries.
510    o pkg/seaice/seaice_init_varia.F
511      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
512        caused zero ice-velocities for the B-grid code
513    o pkg/seaice/seaice_init_fixed.F
514      - fix a bug in the initialisation of the second metric terms
515        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
516      - this affects all seaice configurations with useCurviLinearGrid = .true.
517        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
518        = .true. (default)
519      - the only verification experiment affected is global_ocean.cs32x15:
520        icedyn, seaice, and seaice_dynmix (AD)
521    o pkg/thsice/thsice_diagnostics_state.F
522      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
523        not contain garbage that can lead to surprises in diagstats_calc.F
524    o model/src:
525      - move bi,bj loops inside INTEGR_CONTINUITY ;
526      - call INTEGR_CONTINUITY directly from forward_step.F
527        (previously called from momentum_correction_step.F)
528      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
529        forward_step.F and pkg/ecco/the_main_loop.F
530    o model/src/do_oceanic_phys.F:
531      - reset addMass to zero only if useICEFRONT ;
532      - separated k-loop for rhoInSitu calculation ;
533      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
534        and at constant T,S (= WdRHOdP);
535      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
536        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
537        transport of locally-referenced potential density);
538        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
539    o gluemnc:
540      - replace ncrcat with ncks when adding variables to *.glob.nc
541      - change the way variables without record dimensions are handled so that
542        files that have variables with and without record variables can be glued:
543        add a record dimension with a new unique name to be able to differentiate
544        between variable with and without a-prior record dimensions. Remove
545        this record dimension before adding the variable to the *.glob.nc file.
546        This procedure automatically works also for grid.*.nc files that do not
547        have any record dimension.
548    o verification/cpl_aim+ocn:
549      - generate new reference output on baudelaire (gfortran, mpich2) (previously
550        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
551    o pkg/obcs/obcs_calc_stevens.F:
552      - add code for northern and southern boundaries.
553      - reorder some loops to save some operations and so that drFBar can be scalar
554    o model/src:
555      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
556        truncation) and add diagnostics for Adams-Bashforth tendency increment.
557      - update test-exp. AD output:
558        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
559      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
560        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
561        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
562        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
563        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
564        tutorial_plume_on_slope.
565    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
566      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
567      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
568      does not even come with an F77 compiler anymore, this should not be
569      a limitation
570    
571    checkpoint63e (2011/11/06)
572    o pkg/seaice adjoint of LSR:
573      - substantially rework STORE dirs.
574      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
575        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
576        and only perform SOLV_MAX_FIXED adjoint iters.
577        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
578        always goes to same record, meaning that the last forward field will be
579        the one used in the adjoint - an approximation.
580      - now produces non-zero LSR-related gradients, and acceptable gradients for
581        An's zonal (x-z) test case (to be checked in)
582      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
583        (but these are screwed up by the thermodynamics in the first place);
584        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
585        output_adm.txt also reflects changes to seaice_lsr
586      - global_ocean.cs32x15:
587        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
588          (output_adm.seaice.txt was updated)
589        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
590          (output_adm.seaice_dynmix.txt)
591    o test-exp. exp4+stevens:
592      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
593    o pkg/seaice (lsr solver):
594      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
595        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
596      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
597      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
598        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
599      - compute (with new S/R) and print initial (+ free-driff sol. if available)
600        and final residual of linearised system.
601    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
602      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
603    o pkg/obcs: Stevens BCs (still only for east and west)
604      - fix Stevens BCs by using intermediate velocities of previous
605        time step as "baroclinic" contribution rather velocity of one grid cell
606        inside the boundaries; more consistent but makes the entire treatment
607        more complicated, requires new pickup files and two new S/Rs:
608        obcs_copy_uv_n and obcs_save_uv_n
609        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
610        (undefined by default)
611      - silently move computation of some grid factors into separate loops to
612        save some recomputations
613      - add a hack for non-linear free surface
614      - add a verification experiment to exp4 that tests this code
615    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
616    
617    checkpoint63d (2011/10/25)
618    o pkg/obcs + seaice-dynamics:
619      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
620        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
621        values (consistent with an implicit method).
622      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
623        return to older implementation (same results as before); note that none of
624        the "experimental" OBCS_SEAICE options are implemented in the new version.
625      - switch test exp. seaice_obcs to use new version (update output).
626    o pkg/seaice:
627      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
628      - add parenthesis in Water-Ice drag calculations (evp & lsr);
629      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
630        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
631      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
632        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
633    o pkg/layers:
634      - Include potential density as new coordinate (Thanks to David Munday)
635    o pkg/dic:
636      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
637        carbonate computation/output to CALC_PCO2_APPROX
638    o pkg/generic_advdiff
639      - make TAF generate code that vectorizes:
640        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
641    o model/src:
642      - improve vectorization also for adjoint code of
643        solve_tridiagonal and solve_pentadiagonal. As this requires up to
644        5 new 3D-fields, this code is only turned on for the combination of
645        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
646        for singular matrix check (only for TARGET_NEC_SX).
647      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
648        ALLOW_AUTODIFF. This flag now needs to be set outside of
649        solve_tri/pentadiagonal.F
650    o pkg/exf:
651      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
652        optional namelist EXF_NML_OBCS).
653      - add many debug-print (to trace down where pkg/cal error msg comes from)
654    o pkg/mom_vecinv/mom_vi_hdissip.F
655      - rearrange loops so that vectorization is improved and in particular
656        the adjoint routine vectorizes. The code is a little longer now, but I
657        think easier to read.
658        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
659    o pkg/seaice:
660      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
661    o pkg/exch2:
662      - alternative code (without tile x tile matrix) for cumulated (global) sum;
663        used as default; keep using matrix version in adjustment.cs-32x32x1.
664    o tools/build_options:
665      - after merging some MPI and/or multi-threads specific optfiles so that
666        the modified default optfile support both built (using genmake2 -mpi
667        for the MPI built, using genmake2 -omp for OpenMP built),
668        move now obsolete optfiles to tools/build_options/unsupported/
669       (add copy of email sent to support list in doc/optfiles_changes.txt)
670    
671    checkpoint63c (2011/09/28)
672    o pkg/ebm:
673      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
674        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
675    o pkg/seaice (SItracer pickup)
676    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
677      To be done:
678      - thorough testing of missing fields in S/R seaice_read_pickup
679      - thorough matching between generic tracers and specific fields used
680        (e.g. volume-weighted age, area-weighted age, salinity, ...)
681    o pkg/grdchk:
682      - all procs calculate and print finite-difference gradient (for testreport)
683      - change description output used by testreport;
684      - AD testing: also compare and report Finite-difference gradient;
685        => update all output_adm*.txt
686    o test exp. global_ocean_ebm:
687      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
688        and turn on exactConserve; update (fwd) output.
689    o pkg/seaice (LSR):
690      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
691      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
692        * identical results with non-CS topology (but save up to half of EXCH calls)
693        * no much changes in cs-32 verification tests since no ice at face edges
694         (differences due to convergence criteria, since nb of iterations changed)
695        * expect some differences on lat-lon-cap grid.
696        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
697    o pkg/exch2:
698      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
699        many tiles); until alternative coding is added, just add a stop.
700    o pkg/kpp:
701      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
702        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
703    o optfiles:
704      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
705        into corresponding standard one, which now support different build:
706        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
707      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
708    o pkg/obcs (seaice):
709      - add missing EXCH for uIce,vIce after applying OBCS;
710      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
711        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
712        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
713      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
714      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
715        and eedata.mth for MPI and mutlti-threaded testing.
716    o pkg/flt:
717      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
718      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
719      - fix pickup and trajectories + profiles output with multi-threads;
720      - add parameter to select group of fields to write along trajectory and
721        profile (default unchanged);
722      - only call PORT_RAND* function when flt_noise <> 0;
723      - add multi-threaded test for verification exp. flt_example.
724    o eesupp/src:
725      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
726      - USE_OMP_THREADING: check that number of threads (from eedata) matches
727        actual number (from env.var. setting).
728    o pkg/ebm:
729      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
730      - add multi-threaded test for verification exp. global_ocean_ebm
731    
732    checkpoint63b (2011/08/29)
733    o pkg/ebm:
734      - fix sign of runoff;
735      - update directly forcing fields (Qnet,EmPmR) to use standard
736        external_forcing_surf.F (remove ebm_forcing_surf.F);
737      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
738      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
739        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
740      - update global_ocean_ebm parameters file data and update output (fwd+ad).
741    o verification/matrix_example:
742      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
743        MPI and mutlti-threaded testing.
744    o pkg/matrix:
745      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
746      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
747      - fix for multi-threaded (remove DATA statement);
748      - use standard DIFFERENT_MULTIPLE function;
749      - add MATRIX_OPTIONS.h
750    o verification/matrix_example:
751       To allow to split the domain in several tiles, change the domain size
752        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
753        Western side) of land points.
754    o (*_)write_pickup:
755      - fix few bugs in mypackage_read/write_pickup.F
756      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
757        array of length 1 (was caught by compiler syntax-check).
758    o pkg/diagnostics (velocity potential solver):
759      - fix initialisation of main diagonal matrix (for overlap values)
760    o tools/build_options:
761      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
762        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
763      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
764        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
765        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
766        and use "-devel" testreport option for standard testing on baudelaire.
767    o pkg/grdchk:
768      - Assume that all gradient-check position are within the same tile
769        corresponding to global indices (iGloTile,jGloTile) and that
770        positions (i,j indices or nbeg) are local to this tile;
771      - set tile local-indices and proc. number according to tile global-indices;
772      - remove grdchkwhichproc from namelist (retired param);
773      - send adjoint gradient to all procs so that all procs print it to STDOUT;
774      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
775    o adding package bbl (Bottom Boundary Layer)
776      description in MITgcm/pkg/bbl/bbl_description.tex
777      example/test experiment in MITgcm_contrib/bbl
778    o adjoint verifications
779      - changed 5 experiments to multi-tiles
780        * global_ocean.90x40x15
781        * obcs_ctrl
782        * offline_exf_seaice
783        * tutorial_dic_adjoffline
784        * tutorial_tracer_adjsens
785        changed reference output for those that crossed tile boundaries
786        (changed choices of gradient check positions)
787      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
788      - temporary bug fix in grdchk_loc.F for obcs
789    o genmake2 & testreport
790      - add target "obj" (just for OBJFILES files) to Makefile;
791      - add option to specify FEXTRAFLAGS on command line.
792    o pkg/mypackage:
793      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
794    
795    checkpoint63a (2011/08/02)
796    o pkg/diagnostics (velocity potential):
797      - fix velocity-potential calculation when using OBCS: balance net inflow
798        at each level (new S/R OBCS_DIAG_BALANCE).
799      - fix some of the problems with OBCS in stream-function calculation.
800    o pkg/exf/exf_readparms.F
801      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
802        EXF_NML_OBCS) more consistent, so that you need not have these lists
803        in data.exf when they are not used.
804    o optim/optim_readdata.F:
805      - add some output about obcs variables that might help debugging
806      - add a check about nvarlength
807    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
808    o pkg/diagnostics (velocity potential):
809      - fix mask for OBCS (still problems in stream-function with OBCS);
810      - add specific parameter (default = main code CG2D params) for solver;
811      - in case of poor convergence, use solution corresponding to lowest residual.
812    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
813      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
814      and should be avoided where possible.
815    o model/src (rStar):
816      - include r* effect on reference-state (PhiRef) in totPhiHyd
817        (so that it's really the potential anomaly at the cell center);
818        affect solution only if z* with full pressure in EOS.
819      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
820        update output (because of z* in totPhiHyd and viscA4 changes);
821      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
822        @ constant r) until interpolation at constant r is implemented.
823    o pkg/diagnostics
824      - fix RCENTER diagnostics in case cell center is not at interface middle
825    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
826      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
827      that THETA and SALT are "conservative temperature" and "absolute
828      salinity"
829    o pkg/ctrl
830      - fix computation of endrec in s/r ctrl_init_rec
831      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
832    o pkg/seaice/seaice_growth.F
833      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
834        remove then obsolete STORE directives
835      - fix STORE directives for tice and tices, so that only the
836        appropriate part of the fields are stored (and not the entire
837        field); update global_ocean.cs32x15.seaice AD output.
838      - cosmetic changes: adjust CPP flags and indentation for better
839        legibilty
840    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
841      Chris Wilson)
842    o pkg/gmredi:
843       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
844       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
845    
846    checkpoint63  (2011/07/11)
847    o pkg/exch2:
848     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
849     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
850       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
851       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
852    o pkg/diagnostics:
853     - deal with pairs of post-processed diags which are computed together; in
854       particular, re-order list of diags within 1 file to save 2nd computation.
855     - add S/R to compute velocity stream-function (called after velocity-potential
856       calculation) from divergence free transport -> new diagnostics "PsiVEL".
857     - add parameter to select grid-point location where PsiVEL == 0.
858    o eesupp/src:
859       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
860       (specific S/R needed with exch2 topology - for now, just print an error msg)
861    o pkg/shelfice
862     - Implement friction velocity-dependent transfer coefficients following
863       Holland and Jenkins, JPO, 1999
864       Original code by M. Losch with small modifs.
865       Enable with CPP option SHI_ALLOW_GAMMAFRICT
866       and runtime flag SHELFICEuseGammaFrict
867    o verification lab_sea & global_ocean.cs32x15:
868     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
869       does not miss some dependencies (but is slower) and also works with many files
870       (default makedepend limitation for AD built).
871     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
872    o pkg/diagnostics:
873     - add run-time parameter "useMissingValue" (def=False) to fill land-point
874        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
875       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
876     - Extend the use of "missing_value" setting from data.diagnostics for the case
877       of counter-diagnostics (where fraction-weight is zero). This applies both to
878       MNC and MDS output files.
879    o pkg/seaice/seaice_growth.F:
880      - add 'a priori' cap of latent heat flux based on actual mass considerations
881        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
882        non-legacy seaice_solve4temp.
883      - add diagnostic of the residual sublimation freshwater flux (the freshwater
884        flux taken from the ocean if the total actual latent heat fluxes exceed
885        the maximum)
886      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
887       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
888      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
889       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
890      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
891      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
892    o verification 1D_ocean_ice_column:
893       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
894       update results
895    o pkg/diagnostics:
896     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
897       which are not filled-up but computed from other diags ; In this case, the mate
898       diag points to the primary (filled-up) diag to used for post processing.
899     - Update Velocity-potential computation using post-processed diag framework.
900     ==> Change the ordering of fields and time-periods in MDS output file
901       when using periodic averaging: now writes one time record with the full set
902       of fields for this time period, then the next time reccord (it used to be
903       one field with the full set of time records then the next field).
904         Note: this is now similar to NetCDF (MNC) output file. <==
905    
906    checkpoint62z (2011/06/21)
907    o adjoint monitor:
908     - Add adjoint monitor output for packages exf, seaice
909       and update relevant testreport output
910    o pkg/seaice:
911     - re-order diags inits so that they appear in order in available_diagnostics.log
912     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
913       area/heff/hsnow preceeding thermodynamic growth/melt.
914     - modified diag: SIdA; output actual effect, as the description states.
915     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
916     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
917       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
918        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
919     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
920     - added diagnostics for seaice generic tracers (SItr*).
921     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
922     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
923     I. Fenty: 18-Jun-2011:
924     Minor changes to seaice package:
925     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
926        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
927       - Differentiated "regularization variables" from "floor variables"
928        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
929        * hiceMin became SEAICE_hice_reg (old hiceMin)
930          (with _reg meaning regularization variable)
931       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
932        so as to ensure energy conservation when going between phases
933      - A22 was not used anywhere
934     2) Changed regularization procedure for heffActual and hsnowActual to ensure
935        well-boundedness and smooth adjoint in seaice_growth.F
936     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
937        because the old regularization always set heffActual >= 0.05 cm
938     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
939        on AREA when HEFF > 0.
940      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
941        requiring that DISABLE_AREA_FLOOR *not* be defined
942     Affected verifications:
943      - 1D_ocean_ice_column (output.txt output_adm.txt)
944      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
945    o pkg/diagnostics:
946      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
947      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
948        (was _RL, now integer) with option = 0 to retrieve all levels.
949      - add pieces of code to compute velocity potential at each level (new diagnostics
950        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
951        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
952      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
953        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
954        and in diagnostics_fract_fill.F (do not need a valid pointer for the
955        diagnostics counter-mate); check that definition of counter-diagnostic
956        includes a valid counter-mate (in diagnostics_set_levels.F).
957    o model/src (rStar):
958      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
959        affect solution only if z* with full pressure in EOS;
960        update output of test-exp global_ocean.90x40x15.
961    o pkg/seaice:
962      - introduce siEps=1e-5 parameter
963      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
964      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
965      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
966        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
967        as well as ice cover age and ridging index (attached to AREA).
968        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
969        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
970        Up to SItrMaxNum=3 tracers can be used simultaneously.
971    o pkg/salt_plume:
972      -introduce SPsalFRAC run time parameter that sets the fraction of the
973       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
974       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
975    o model debug options:
976      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
977        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
978      - Refine debug-msg printing selection (3 new levels):
979        debugMode  : controls printing of debug messages (sequence of S/R calls).
980        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
981         debLevZero =  0 ; /* level of disabled aux. msg printing */
982         debLevA =  1 ; /* level of minimum  aux. msg printing */
983         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
984         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
985         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
986         debLevE =  5 ; /* level of extensive debug printing */
987        New debugLevel default: with default debugMode value (=F),
988          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
989          and if debugMode=T, default debugLevel = 4 (debLevD).
990        Relation with previous settings:
991         debLevB (=2) corresponds to former debLevA (=1)
992         debLevD (=4) corresponds to former debLevB (=2)
993        Note:
994         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
995         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
996            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
997      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
998        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
999    o pkg/obcs:
1000      - change OBCSfixTopo default from True to False (should not change the results);
1001        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1002    o pkg/thsice:
1003      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1004        2nd layer seaice sublimation (unlikely to happen)
1005      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1006        done in gad_advection & seaice_advection).
1007    o adjoint:
1008      bug fix spotted by Gael Forget:
1009      seaice_advection and thsice_advection still had
1010      legacy CPP options to avoid CS corner updates for adjoint
1011    o pkg/seaice:
1012      => Change some of the defaults (2011/05/29):
1013         - change SEAICEuseFluxForm default (from False to True)
1014         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1015         And print warnings if DIFF1 is not set in data.seaice and centered
1016          avection scheme is used without any diffusion.
1017      also:
1018      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1019      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1020      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1021        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1022        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1023      update results of test exp.:
1024         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1025             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1026             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1027         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1028         seaice_obcs: output (SEAICEuseFluxForm=T)
1029      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1030          for standard fwd & AD lab_sea tests (to keep the same output).
1031    o pkg/seaice/seaice_growth.F:
1032      - use Ian Fenty's capping formulas for actual ice
1033      thickness thoughout EVOLUTION branch.
1034      - put treatment pathological case #2) in CPP brackets
1035      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1036      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1037    o pkg/seaice:
1038      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1039      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1040      also pass fac as a param, which can be 1. (to update the tendency
1041      field) or the time step (to update the field itself).
1042      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1043      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1044      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1045      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1046      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1047    o pkg/seaice:
1048      diffusion with centered advection scheme (diffus.F & advect.F):
1049      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1050        to just compute the laplacian of input-field.
1051      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1052      - fix flux-form version in diffus.F to conserve tracer.
1053      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1054       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1055    
1056    checkpoint62y (2011/05/26)
1057    o pkg/seaice:
1058     - seaice_growth.F : in EVOLUTION branch, always include
1059       a_QSWbyATM_cover in qnet (as it should be).
1060     - verification/global_ocean.cs32x15 : update results accordingly
1061       (output.seaice.txt output_adm.seaice.txt).
1062    o pkg/seaice + obcs:
1063     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1064       equivalent of assuming no tracer gradient outside the OB region.
1065       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1066     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1067       after changes above);
1068     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1069       only at OB location (instead of over a band of OLx width).
1070    o pkg/seaice:
1071     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1072       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1073    o pkg/obcs:
1074      - split header file "OBCS.h" into 4 separated files:
1075        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1076       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1077         (contain no conditional statement which depends on OBCS options).
1078      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1079        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1080    o ctrl, cost, grdchk & autodiff pkgs:
1081      - make options file more standard (like other {PKG}_OPTIONS.h file but
1082        with AD_CONFIG.h); clean-up some of the included header files.
1083    o pkg/obcs:
1084      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1085      - apply tracer OB values to tracer field only at OB location (instead of
1086        over a band of OLx width)
1087      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1088      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1089        obcs_apply_tloc.F & obcs_apply_sloc.F
1090    o obcs in model/src:
1091      - call OBCS_APPLY_W only if NonHydrostatic.
1092      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1093      - reset dEtaHdt and wVel to zero outside OB interior region ;
1094      - leave tracer unchanged outside OB interior region: This has no effect
1095        on the solution but just to prevent unrealistic tracer value outside OB.
1096      - zero out velocity outside OB interior region: This has no effect on
1097        the solution but just to prevent unrealistic velocity outside OB.
1098    o obcs and non-lin free-surf:
1099       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1100       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1101       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1102       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1103       update results of test-exp. exp4(nlfs).
1104    o exp4 (nlfs) test-exp:
1105       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1106       with NonLin-FreeSurf); update output.nlfs.txt
1107    o obcs and 2d/3d solver norm:
1108       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1109       and outside OB interior region (will allow to place OB further inside the
1110       domain). Depending on the domain, can affects cg2d-Norm (previous
1111       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1112       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1113       e.g. in tutorial_plume_on_slope.
1114      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1115    o pkg rbcs:
1116      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1117      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1118    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1119    o pkg/shelfice/shelfice_init_fixed.F
1120      fix CPP-flag combinations
1121    o pkg/seaice: Merge iceage code of Pierre Rampal
1122      * update/change/correct ice age calculations
1123      * add age updates for pathological cases
1124      Probably needs more testing...
1125    
1126    checkpoint62x (2011/05/13)
1127    o pkg/mom_vecinv:
1128       high-order vorticity scheme: use interior masks (maskInW & S)
1129       to zero-out (outside OB) gradient of vorticity.
1130    o verification exp.:
1131       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1132       hs94.128x64x5 and seaice_obcs ; update results.
1133    o pkg/obcs:
1134      fix bug in OBeta for YZ sections in obcs_exf_load.F
1135    o pkg/ctrl, pkg/shelfice, and optim:
1136      - add new control variable xx_shifwflx (fresh water flux underneath ice
1137        shelves). This is almost as tedious as obcs-ctrl, because the
1138        variables needs its own mask.
1139      - add a cost function term that penalizes the deviation of xx_shifwflx
1140        from the first guess (zero) in analogy to other control variables
1141    o pkg/shelfice:
1142      - start basic adjoint
1143    o pkg/ctrl:
1144      - remove extra 2D field "for good measure" when initializing in
1145        ctrl_set_globfld_[xy/xz/yz].F
1146      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1147      - improve error messages in ctrl_set_unpack_*
1148    o OBC implementation in momentum:
1149       use interior masks (maskInC,W & S) in momentum S/R:
1150       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1151       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1152       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1153       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1154       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1155        (and also with Leith/Smagorinsky harmonic-viscosity).
1156       Update output of experiment dome and exp4 (+nlfs).
1157    o exp4 test-exp:
1158      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1159        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1160        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1161        time-varying OB at Western-side for wVel (NonHyd); update output.
1162      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1163        and biharmonic-viscosity ; also use prescribed time varying OB.
1164    o pkg/obcs:
1165      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1166    o model/src:
1167      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1168      - initialise startTime & nIter0 with unlikely values: allows to set one
1169        from the other without ambiguity.
1170    o seaice_obcs test-exp.:
1171      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1172    o pkg/obcs:
1173      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1174        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1175    o pkg/seaice:
1176      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1177        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1178      - fixed bug in the initialization of sea ice salinity variable HSALT
1179        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1180    o fizhi-cs test exp.:
1181       switch reference output convention for these 2 non-standard test-exp,
1182        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1183          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1184       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1185    o model/inc:
1186      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1187        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1188    o pkg/seaice:
1189      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1190    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1191      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1192        and initial HSALT
1193    
1194    checkpoint62w (2011/04/26)
1195    o pkg/mom_fluxform:
1196      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1197      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1198      - update output of exp. global_ocean.90x40x15
1199    o pkg/mom_vecinv:
1200      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1201    o update seaice exp.:
1202      use more consistent parameter values (remove "backward compatability only":
1203       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1204      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1205       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1206    o update test-exp global_ocean.90x40x15:
1207      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1208      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1209      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1210      o turn on zStar & viscA4 in standard set-up (dir input/)
1211        and update output files: output.txt & output.dwnslp.txt
1212    o new AD-test experiment: obcs_ctrl
1213      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1214    o pkg/dic:
1215      fix two bugs in handling water vapour pressure in carbonate chemistry
1216      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1217      (add DIC Option = WATERVAP_BUG to recover old results)
1218      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1219    o adding allowInteriorFreezing option to check for water below freezing point
1220      at depth and bring the negative heat anomaly to the surface level
1221    o pkgs _fields_load:
1222      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1223      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1224        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1225        rbcs to get interpolation weights and time reccord number.
1226      - fix multi-threading in aim_fields_load.F
1227      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1228    o external_fields_load:
1229      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1230       interpolation weights) to use in a periodic time-series ; do not divide by
1231       time-step to convert to integer:
1232       - this fixes case where externForcingPeriod is not multiple of time-step
1233          (Thanks to Christopher L. Wolfe)
1234       - this fixes case where externForcingPeriod is an odd multiple of time-step
1235         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1236      store index of time-record which is currently loaded:
1237       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1238       - needed for the adjoint but not yet used because of extensive recomputations;
1239         (to be fixed soon)
1240    
1241    checkpoint62v (2011/04/02)
1242    o verification/1D_ocean_ice_column added to test Ian Fenty's
1243      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1244    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1245      (new velocity statistics after changing maskInW & maskInS definition)
1246    o pkg/generic_advdiff with OBCS:
1247      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1248      equivalent to assumption of no tracer gradient outside the OB region.
1249      This will affect the results if using obcs+biharmonic diffusion.
1250      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1251    o pkg/obcs:
1252      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1253      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1254      in Interior region. No impact on solution but affects Velocity monitor stats.
1255    o pkg/ptracers (adjoint)
1256      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1257      tape file for each tracer
1258    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1259      of parts of the adjoint code at run time. For now, there are only
1260      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1261      parameters are set in data.pkg.
1262      This is the lazy coward's version of doing this, but still useful for
1263      debugging. In order to do it right, everything needs to be moved to
1264      pkg/autodiff.
1265    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1266      the end; this fixes the adjoint balancing code for open boundaries.
1267    o pkg/ctrl:
1268      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1269        xx_${varname}period =   0.,  means time-independent control part
1270        xx_${varname}period = -12., means one-year-periodic monthly control part
1271      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1272        clean up ctrl_init a little, remove unused variables
1273      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1274      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1275    
1276    checkpoint62u (2011/03/15)
1277    o model/src:
1278      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1279        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1280      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1281        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1282    o pkg/ctrl/obcs/ecco:
1283      - remove obsolete, unused, and partially broken code:
1284        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1285        ALLOW_CTRL_OBCS_BALANCE
1286      - put a stop statement into ecco/cost_obcsvol.F, but also add
1287        cost_obcsvol to ecco_ad_diff.list
1288    o pkg/ecco: fix counting cost function contributions for obcs (code
1289      by Matt M.) and diffkr for diagnostics
1290    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1291      add cost penalty terms for initial uvel, vvel, eta controls
1292      and I/O for prior error files
1293    o pkg/mdsio:
1294       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1295       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1296       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1297    o pkg/ctrl:
1298     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1299       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1300       unused and superfluous variables
1301     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1302    o pkg/ecco
1303     - enable adjoint of Stevens OB
1304    o pkg/ctrl/ecco/grdchk:
1305      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1306        Fortunately, we do not have any tests for the numerous cpp-flagged
1307        option of "obcs as control parameters" so we will never know
1308        if this is an improvement (but at least now things compile).
1309      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1310      - fix some problems within never used ifdefs to make the code compile
1311    o pkg/obcs:
1312     - Refine Interior mask definition to work with more complex OB (e.g.
1313       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1314       read in Interior mask from file. Check if Interior mask is consistent
1315       with OB list of indices.
1316    o pkg/seaice
1317     - beginning code for a seaice tracer package,
1318       but currently only used for seaice age: SEAICE_AGE
1319       SEAICE_num = 4
1320       iTracer = 1: area-weighted ice age
1321               = 2: volume-weighted ice age
1322               = 3, 4: template for one-year vs. multi-year ice
1323       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1324       SEAICE_num
1325    
1326    checkpoint62t (2011/03/05)
1327    o pkg/obcs:
1328     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1329       then normal component. This ensures that the normal component is set
1330       correctly even when it conficts with tangential setting from an other OB.
1331       Affects results of test-experiment seaice_obcs: update the output.txt
1332    o pkg/obcs:
1333     - add code to monitor statistics of dynamical fields at OB.
1334     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1335       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1336       - change default: balance the Net inflow through all OB (instead of balancing
1337         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1338     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1339       to match Nortern OB inflow (OBCS_balanceFacN=0).
1340    o pkg/seaice:
1341     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1342    o pkg/seaice (seaice_growth v 1.113):
1343     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1344       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1345       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1346       runtime flag SEAICEareaFormula is kept but is inactive
1347    o model/src:
1348     - add new param to scale curvilinear grid distance and area when using
1349       a different sphere radius from the grid-files.
1350     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1351    o adjoint:
1352     - enable adjoint of Stevens OB
1353     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1354       (a bit delicate because of potentially modified adj. common block structure;
1355       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1356    
1357    checkpoint62s (2011/02/15)
1358    o pkg/seaice (seaice_growth v 1.112):
1359     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1360       computing the ice cover tendency from effective thickness tendencies. Include
1361       Ian Fenty's formula.
1362     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1363       SEAICEareaFormula.
1364     - simplify notations for the various d_HEFF/d_AREA terms.
1365    o pkg/gmredi:
1366     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1367       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1368       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1369    o pkg/seaice (seaice_growth v 1.111):
1370     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1371     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1372       also melt ice.
1373    o pkg/seaice:
1374     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1375     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1376    o pkg/cheapaml:
1377     - from Nico Wienders: New version of this package.
1378    o pkg/flt:
1379     - add CPP options to prevent floats to re-enter the opposite side of
1380       a periodic domain (default: keep periodicity)
1381    o pkg/gmredi:
1382     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1383       (needed for multi-dim advection).
1384     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1385    o model/src:
1386     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1387    o tutorial_tracer_adjsens
1388     - extend to NLFS and replace maskC by hFacC
1389       (change reference output accordingly)
1390    
1391    checkpoint62r (2011/01/24)
1392    o testreport:
1393     - add option -deloutp (-do) to remove output file after successful run
1394     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1395       extract exact list of procs from this file ; adjust COMMAND by
1396       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1397    o pkg/ecco: replace old ineffective way of penalizing deviations from
1398      first guess (of obcs) with code by Matt Mazloff
1399    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1400      exf/cal
1401      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1402        and handle case of obcs?period == 0
1403        Not affected by these changes: There is still an inconsistency in
1404        the computation of start/endrec for the obcs variables for ALLOW_CAL
1405        defined (see comment by Menemenlis, 7-Mar-2003)
1406      - make S/R ctrl_get_gen_rec return something meaningful even if
1407        ALLOW_CAL is not defined
1408      - ctrl_getobcs?: simplify code so that it does not need to use
1409                       S/R exf_swapfields
1410    o testreport:
1411       allow to test MPI with different number of processors for each experiment:
1412       create file "SIZE.h.mpi" in each build dir.
1413       Note: update of "-command" argument not yet implemented.
1414    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1415      alleviate the need for additional 3D tapes when using
1416      the non-inear free surface in the adjoint. This is done
1417      by adding an 'update' of hfacc etc. to their current
1418      value at the beginning of forward_step.F.
1419    o pkg/seaice
1420      seaice_lsr: move stress-divergence computations out of outer pseudo-
1421      timestepping loop
1422    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1423      up, so that the calls of the ctrl_* subroutines are really at the end
1424      of the routine.
1425    o pkg/gmredi:
1426      allow to specify a 2-D horizontal map and a 1-D vertical profil
1427      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1428    o pkg/seaice:
1429      move lsr iterations from seaice_dynsolver to seaice_lsr.
1430    o pkg/seaice:
1431      reduce memory footprint of seaice mutldim advection tapes,
1432      by using a 2D tape independent of the generic_advdiff ones,
1433      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1434    
1435    checkpoint62q (2010/12/29)
1436    o model/src:
1437      - check horizontal grid-spacing for unset or zero/negative values.
1438      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1439    o pkg/flt:
1440      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1441      - precision of input and output files set according to readBinaryPrec
1442        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1443      - initial float position from tiled file was not converted to index space
1444        (looks like a bug): fixed to make it similar to initial pos. global file.
1445    o global_ocean.cs32x15:
1446       change SIZE.h of AD set-up to get same tiling as with MPI.
1447       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1448    o model/src:
1449       add flag to control printing of domain fields (bathymetry, hFac ...) in
1450       ini_mask_etc (call to plot_fieds_xy*).
1451    o pkg/thsice:
1452       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1453       over the interior only + apply EXCH at the end (like with SEAICE advection).
1454    o pkg/mdsio:
1455      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1456        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1457      - change barrier call for safe multi-threads access to 3-D shared buffer.
1458      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1459      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1460        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1461    o pkg/flt:
1462      - add fourth-order Runge-Kutta integration
1463      - add basic exch2 support (only 1 facet supported so far!)
1464  o pkg/mdsio+rw:  o pkg/mdsio+rw:
1465    new S/R to read local (or tile independent) vector (read counterpart of    new S/R to read local (or tile independent) vector (read counterpart of
1466     mds_writevec_loc, and front-end write_glvec_rl/rs).     mds_writevec_loc, and front-end write_glvec_rl/rs).

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