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revision 1.190 by edhill, Tue Oct 21 15:29:20 2003 UTC revision 1.1679 by jmc, Fri Jun 29 13:51:53 2012 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63o (2012/06/29)
8    o vertical mixing schemes:
9      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
10      - replace computation of density (in Function STATE1, opps_calc.F) by a call
11        to S/R FIND_RHO_SCALAR
12      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
13        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
14        affects output (vermix.ggl90) at truncation level.
15    o testreport:
16      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
17        (nSx,nSy) for the number of threads (from eedata.mth)
18    o model/src:
19      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
20        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
21    o verification/tutorial_tracer_adjsens/
22      - compile with ALLOW_CG2D_NSA
23      - run with nonlinFreeSurf=3
24      - update reference output_adm.txt
25    o tools/genmake2:
26      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
27        refine usePROFILES switching off (only when NetCDF is not available).
28    o verification (atmospheric set-up):
29      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
30    o pkg/profiles : refine profiles and files handling.
31    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
32    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
33      - changes to use model/src/the_main_loop.F rather than the ecco version
34        in ecco type adjoint runs.
35    o model/src:
36      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
37      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
38      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
39    o model/src:
40      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
41        update output of test experiment bottom_ctrl_5x5.
42    o pkg/generic_advdiff:
43      - implement vertical bi-harmonic diffusion (for now, only for T & S and
44        only explicitly).
45    o verification/bottom_ctrl_5x5/
46      update reference output (results changed quite some time ago,
47      not sure when; but new reference results look ok in terms of grdchk)
48    o verification/1D_ocean_ice_column/
49      For verification purposes, the exact adjoint rather than an approx.
50      should be used (e.g., to comare against F.D. or TLM).
51      removed autodiff_inadmode*_ad.F routines in code_ad/
52      Update results/ accordingly.
53    o pkg/cal:
54      - change cal_getdate.F so that output date is function of input time only
55        (less ambiguous, not mixed up with input iteration number).
56      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
57    o pkg/diagnostics:
58      - implement calendarDumps also for stats-diags
59      - implement calendarDumps also for snap-shot output (negative freq)
60      - for now, ignores calendarDumps if non-zero phase-lag.
61    
62    checkpoint63n (2012/06/04)
63    o model/src:
64      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
65        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
66      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
67        similar to calc_r_star.F); update results of experiment internal_wave and
68        tutorial_global_oce_in_p (affected @ truncation level).
69    o pkg/shelfice:
70      - add parameterisation of advective-diffusive flux into the ice shelf
71        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
72      - simply eps3/3a computation
73    o eesupp:
74     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
75       between tiles, just fill-in edges assuming locally periodic subdomain) and
76       add corresponding exchange subroutines (EXCH0);
77     - new CG-solver version (_EX0) for disconnected-tiles special case.
78    o model/src (CG-solvers):
79     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
80       (similar final residual output and max-Iter number as with standard version);
81     - allows to store and use lowest-residual solution (standard & _SR versions);
82     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
83     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
84    o eesup/src:
85     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
86       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
87    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
88    
89    checkpoint63m (2012/04/27)
90    o pkg/shelfice:
91     - account for partical cells in surface level below ice-shelf for hydrostatic
92       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
93    o ad test experiments:
94     - update and rename to "ad_optfile.local" local AD-optfile specific to a
95       particular adjoint verification experiment (in verification/*/code_ad/)
96    o pkg/seaice & pkg/exf:
97     - Part two of ECCO-CLIVAR code merges.
98       Completes merge of seaice area relax. code.
99       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
100       to be set in EXF_OPTIONS.h since this pkg controls its I/O
101       (and avoids second CPP option in SEAICE_OPTIONS.h)
102     - change default value of costIceStart & costIceEnd to a valid date.
103     - add snowPrecip to HSNOW in seaice_growth
104    o pkg/ptracers:
105     - move ptracers summary and setup check into separated S/R ; add a check for
106       valid PTRACERS_Iter0 value (error+stop or just warning).
107    o pkg/cal (+ pkg/ecco):
108     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
109       as input; and for AD, unless both are not differentiable (e.g., k index)).
110    o model/src:
111     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
112       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
113       temporary set to usingZCoords value (to be changed to F when using shelfice).
114     - hydrostatic pressure: implement partial cell near the surface also for
115       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
116       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
117    o pkg/ctrl/ctrl_init.F:
118     - add a formal parameter to s/r ctrl_init_rec to print
119       xx_$(ctrl_valiable)_file for easier debugging
120     - move call of cal_* routines into the if-block where they are really
121       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
122       to specify a startdate
123    o pkg/seaice:
124     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
125       global_ocean.cs32x15/code versions).
126     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
127       verification experiment global_ocean.cs32x15.seaice and update results.
128    o pkg/exf:
129     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
130       (according to useExfYearlyFields).
131    o pkg/cal:
132     - move calendar setting & summary (previously in cal_readparams.F) into new
133       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
134       length of the simulation is set (after SET_PARMS call); This is an attempt
135       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
136     - For safety: keep a record of pkg/cal parameter settings status
137               to allow to STOP if one pkg/cal S/R is called too early.
138     - add a stop in all basic pkg/cal subroutines if called before setting is done.
139     - modify cal_getdate.F: stop when nothing was returned;
140       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
141       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
142    
143    checkpoint63l (2012/04/04)
144    o pkg/bbl:
145      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
146        update global_with_exf output.yearly.txt file.
147    o pkg/cal:
148      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
149      - remove 2 unsused and very short (1 line only) functions ;
150      - remove unsused subroutines from AD-Diff list.
151    o model/src:
152      - start to implement clean wait to stop in initialization S/R (config_check.F,
153         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
154    o folowing PRINT_MESSAGE changes:
155      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
156    o pkg/bbl:
157      - modification so it can work with z*
158      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
159      - global_with_exf/input.yearly verification; changes output.yearly.txt
160    o eesupp/src:
161      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
162        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
163      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
164        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
165      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
166      - when using MPI, always set usingMPI=T ; set default accordingly and stop
167        if not consistent.
168      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
169        argument is zero (in case called within single-thread section).
170    o pkg/fizhi:
171        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
172        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
173    o pkg/exch2:
174      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
175        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
176      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
177        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
178        with bad ones coming from a not-yet-updated halo.
179        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
180    o pkg/frazil:
181        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
182        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
183    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
184    o verification/lab_sea
185      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
186      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
187      * nTimeSteps 3 -> 4
188      * changed reference output accordingly
189    o pkg/ctrl:
190      * fix ctrl_get_gen for xx_sst, xx_sss
191    o pkg/fizhi:
192      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
193        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
194      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
195        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
196        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
197    o pkg/gmredi:
198      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
199    o pkg/fizhi:
200      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
201        (old)aces open64 tuv test.
202    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
203    o pkg/mom_vecinv:
204      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
205        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
206        with non-lin free-surf).
207    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
208      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
209      some compilers (gfortran 4.6.0 on MacOS)
210    o momentum:
211      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
212        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
213        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
214    
215    checkpoint63k (2012/03/17)
216    o model/src:
217       - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum
218         flux-form (mom_fluxform.F) and vertical momentum (calc_gw.F) equations.
219       - SOLVE_DIAGONAL: switch default to use adjoinable & vectorized version
220         (#undef SOLVE_DIAGONAL_LOWMEMORY); update output of exp. front_relax.bvp.
221    o model/src: solve_*diagonal.F
222       - replace division with multiplication by inverse (similar to original version)
223         update output of AD exp. global_ocean.90x40x15.
224       - fix pkg/gmredi/gmredi_calc_psi_bvp.F & pkg/ggl90/ggl90_calc.F
225         to enable the use of the vectorized & differentiable solve_tridiagonal.F
226       - test exp. global_ocean.90x40x15/input_ad: switch to advection scheme 20 for
227         vertical advection (to get solve_tridiagonal tested in AD mode).
228    o pkg/seaice: ECCO-CLIVAR merge:
229      1. seaice AREA relaxation
230         * CPP option: SEAICE_ALLOW_AREA_RELAXATION
231         * runtime flag: SEAICE_tauAreaObsRelax
232      2. modified global mean cost imbalance code: CPP option
233          ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION
234    o another iteration on solve_*diagonal.F
235       Make choices independent of AUTODIFF
236       Default will be the adjoinable vectorized version.
237       Alternative choices are:
238       * non-adjoinable original version with low memory footprint:
239         #define SOLVE_DIAGONAL_LOWMEMORY
240       * still adjoinable but does not vectorize (k as inner-most loop):
241         #define SOLVE_DIAGONAL_KINNER (keeping SOLVE_DIAGONAL_LOWMEMORY undef)
242    o testreport
243     - add option to use a home made wrapper around "make"
244     - remove MITGCM_IEEE env. variable (no longer active)
245    o pkg/shelfice
246     - improve computation of friction velocity for velocity dependent
247       exchange coefficients: include velocities into SHELFICEBoundaryLayer
248       block to average velocities vertically
249     - add TAF store directives for SHI_ALLOW_GAMMAFRICT
250    o Modify diagonal solvers, now three versions (upon request):
251      #ifndef SOLVE_DIAGONAL_AUTODIFF
252        1. default version (dating back a while ago)
253      #else /* def SOLVE_DIAGONAL_AUTODIFF */
254      # ifdef SOLVE_DIAGONAL_KINNER
255        2. adjoinable version with k-innermost loop (G. Forget)
256      # else
257        3. adjoinable vectorized version of 2.
258      # endif
259      #endif /* SOLVE_DIAGONAL_AUTODIFF */
260      All flags are currently set within routines, but could/should be moved to CPP-options.
261      Array bounds for 1. are as before, for 2.,3. cover the entire domain
262      (could be changed for 1. too).
263    o verification/lab_sea (fwd):
264      - update the 4 fwd lab_sea test experiment: no longer SEAICE_GROWTH_LEGACY,
265        use 7 categories (except hb87), new solve4temp params (except salt_plume),
266        constant salinity (=4) or variable salinity (salt_plume) done through
267        SItracer.
268    o pkg/seaice:
269      - rename parameters: SIsalFrac to SEAICE_saltFrac & SIsal0 to SEAICE_salt0;
270      - remove old parameters ( SEAICE_freeze, SEAICEturbFluxFormula, SEAICE_gamma_t,
271         SEAICE_gamma_t_frz, SEAICE_availHeatTaper & SEAICE_availHeatFracFrz)
272        from SEAICE_PARMS.h ; still need to fix seaice_cost_sst.F (broken when
273        SEAICE_freeze got retired) but already better than previously with
274        SEAICE_freeze=123456.7 deg.C;
275      - move setting of facOpenGrow/Melt from SEAICE_INIT_FIXED to SEAICE_READPARMS
276        (safer multi-threaded setting); always set SEAICEuseEVP;
277      - setting of ocean-ice turb. flux coeff: moved from SEAICE_CHECK to
278        SEAICE_READPARMS & SEAICE_INIT_FIXED (this fixes wrong summary report);
279        stop if multiple specifications for the same coeff; make sure default
280        SEAICE_mcPheePiston is compatible with drF(1) & deltaT.
281    o pkg/obcs:
282      - allow to switch to upwind 1rst order advection scheme for the advective
283        flux computation at the open-boundary; disabled for adjoint built.
284    o pkg/ptracers:
285      - rename PTRACERS_RESTART.h -> PTRACERS_START.h
286      - rename ptracers_fields_blocking_exchanges.F -> ptracers_fields_blocking_exch.F
287      - add parameter to decide when to start a tracer; use internal flag to
288        know which tracer to step-forward; switch this internal flag at the top
289        of forward_step.F (new S/R PTRACERS_SWITCH_ONOFF); for now, not enabled
290        for adjoint built.
291    o pkg/seaice:
292      - add SEAICE_SIZE.h anywhere in the code where SEAICE.h is included ;
293      - move MULTDIM declaration and setting from SEAICE.h to SEAICE_SIZE.h ;
294      - keep experiment offline_exf_seaice truly single category (set MULTDIM=1).
295    o pkg/ecco:
296      - fix writing of output file DiagnosCost_ClimSalt/Theta
297        and DiagnosCost_DriftSalt/Theta (if multi-tiles per proc).
298    o pkg/seaice:
299      - add missing initialisation of COR_ICE array in dynsolver.F
300      - merging SEAICE_MULTICATEGORY define and undef cases. Now the same code is
301        compiled either way, and is tested in all exps (multidim was only tested
302        in lab_sea ad before).
303      - cosmetic change to prepare for future addition of ITD. no change to results.
304        no defaults change.
305      - added run time param SEAICE_multDim (7 for SEAICE_MULTICATEGORY, 1 otherwise).
306      - by lack of adequate verification experiments, I further used custom versions
307        of global_ocean.cs32x15 to test multicat or not, with pickup or not. All
308        should be correct.
309      - avoid recomputations in ad.
310    o array initialisation in adjoint mode:
311      1) pkg/mom_common/mom_calc_ke.F:
312        add full array initialisation of KE inside mom_calc_ke.F (ALLOW_AUTODIFF_TAMC):
313        The S/R which calls MOM_CALC_KE initialises KE but in some recomputation
314        part this initialisation is gone, resulting in Floating Point Exception
315        (caught by open64 compiler with debug option).
316      2) model/src/convective_weights.F
317        set output convectCount over the full array range (instead of doing
318        an update): this fix a similar issue when called within recomputation (adjoint)
319        which could by-pass the initialisation (normally done in the caller S/R).
320    o pkg/seaice:
321      - final version of turbulent flux params, as agreed at MIT ice meet:
322           SEAICE_mcPheePiston (default is ~ 0.000875)
323           SEAICE_mcPheeTaper (default is 0.)
324           SEAICE_frazilFrac (defualt is 1.)
325           SEAICE_mcPheeStepFunc (default is false)
326      - changes results at trunction error level
327      - ifdef SEAICE_EXTERNAL_FLUXES, disallow SEAICE_waterAlbedo
328    o added pkg/frazil:
329      - see frazil_description.tex for details
330      - verification experiment is global_with_exf/input.yearly; changes output.yearly.txt
331    o pkg/shelfice/shelfice_thermodynamics.F
332      - fix exponents for velocity dependent exchange coefficients: change
333        from 2/3(=0) to 0.66666666666666667
334      - move computation of velocity dependent exchange coefficients into
335        separate loop, so that it applies to both thermodynamics
336      - move some divisions by constants out of loops
337    
338    checkpoint63j (2012/02/16)
339    o pkg/seaice:
340      - overhaul of seaice_summary.F after feb 2012 clean-up of seaice_growth.F etc.
341      - SItracer:  added run time params, and allow coupling to ocn salinity.
342    o pkg/seaice: remove (almost) all divisions by constants within loops
343      in seaice_growth.F and seaice_solve4temp.F, this changes (only) the cg2d
344      results of global_ocean.cs32x15.seaice from 16 to 11 digits (but only
345      those, caused by 1/QI -> recip_QI) -> update output.seaice.txt,
346      output_adm.seaice_dynmix.txt and also lab_sea: output_adm.evp.txt
347    o pkg/seaice :
348      - simplify McPhee tapering, and allow to use it with SEAICEturbFluxFormula
349        = 1 or 2, using newly added run time parameter SEAICE_availHeatTaper.
350      - fix d_AREAbyATM, d_AREAbyOCN, d_AREAbyICE diags I broke in r1.148.
351      - add permanent SItflux diag that corresponds to TFLUX but includes
352        ice+snow. Hence SItflux-TFLUX should match the ice+snow heat budget.
353      - allow activation/testing of a fix for suspected missing term in
354        ocn-ice heat budget (to be confirmed). To test this, you want to
355        undef SEAICE_DISABLE_HEATCONSFIX, and then set the run time param
356        SEAICEheatConsFix to .TRUE. that also allows the 'SIaaflux' diagnostic.
357      - no change in results, fwd or ad.
358    o global_ocean.cs32x15/results: 3 changes following from the pkg/seaice commit below:
359      - switch to variable freezing point.
360           Results change : cg2d -> 1 digits; ad -> 3-6-6 digits.
361      - bug fix : the sublimation term that was missing is now activated.
362           Results change : cg2d -> 2 digits; ad -> 8-6-6 digits.
363      - bug fix : flooding sign term for SIsal0.NE.0.
364           Result change : cg2d -> 8 digits; ad -> 11-12-9 digits.
365    o pkg/seaice:
366      - unified freezing point treatment : the old SEAICE_VARIABLE_FREEZING_POINT
367        is now the default, and the old default constant freezing point is recovered
368        with SEAICE_tempFrz0    = -1.96,
369             SEAICE_dTempFrz_dS = 0.,
370      - retire SEAICE_freeze (= the old way of specifycing the constant freezing point)
371      - remove ALLOW_SEAICE_FLOODING brackets; run time switch is already there.
372      - bug fix (thanks to M. Losch) : the sublimation term that was missing is now
373        activated. To reproduce old results with this bug define SEAICE_DISABLE_SUBLIM.
374      - bug fix (silly me) : flooding sign term (seaice_growth.F r 1.149line 1211)
375        was wrong for SIsal0.NE.0. Changes cs32x15 results (see above item for detail).
376      - bug fix (thanks to O. Jahn) : area loss for melting  got messed up in
377        seaice_growth r149 for legacy branch (no results change).
378      - introduce SEAICE_CAP_SUBLIM : caps sublimation heat flux in solve4temp (code
379        from I. Fenty).
380      - results did not change except for global_ocean.cs32x15, mostly due to the
381        switch to variable freezing point (see above item for detail).
382    o pkg/thsice:
383      - fix and simplify interface to salt_plume pkg ; diagnose directly amount of
384        seawater freezing in thsice_calc_thickn (not used).
385    o pkg/seaice: turbulent flux term specification via run time params.
386      - replace CPP switches with run time switches to facilitate testing
387      - retired CPPs : MCPHEE_OCEAN_ICE_HEAT_FLUX,
388                       GRADIENT_MIXED_LAYER_TURBULENCE_FACTOR
389      - added runtime parameter : SEAICEturbFluxFormula
390      - move Mcphee constants to SEAICE_PARAMS.h
391      - seaice_readparms.F : read turbulent flux term params (SEAICEturbFluxFormula;
392                 SEAICE_availHeatFrac/Frz, or SEAICE_gamma_t/_frz if apply);
393                 remove seaice_summary call (moved to seaice_init_fixed)
394      - seaice_init_fixed.F : set SEAICE_availHeatFrac/Frz depending on
395        SEAICEturbFluxFormula, and seaice_summary call (moved from seaice_readparms)
396      - seaice_summary.F : add missing report of read turbulent flux term set up
397                           and SITRACER.
398      - seaice_check.F : check range; inform and stop if retired CPPs are used
399                         (incl. SEAICE_AGE).
400      - seaice_growth.F : unified use of SEAICE_availHeatFrac/Frz, without
401             CPP switch, same computation as before for the different options.
402      - change results at the truncation level.
403    o pkg/seaice:
404      - remove un-used parameters LAD & MAX_TICE ; add new run-time parameters:
405        useMaykutSatVapPoly (default=F), postSolvTempIter (default=2) and
406        SEAICE_wetAlbTemp (default=-1e-3). Remove option SEAICE_SOLVE4TEMP_LEGACY.
407      - update verification/*/input*/data.seaice:
408        to reproduce previous results with former #defined SEAICE_SOLVE4TEMP_LEGACY
409        code, set useMaykutSatVapPoly=T & postSolvTempIter=0 ;
410        and to reproduce previous results with former non-SOLVE4TEMP_LEGACY code,
411        set SEAICE_wetAlbTemp=0 & SEAICE_snowThick=0.
412    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY):
413      - remove LEGACY code for solving for tsurf (A1,A2,A3) but maintain the same
414        algorithm (same choice: useMaykutPolySatVap=T, postSolvTempIter=0);
415        difference in results only due to machine truncation.
416      - remove MAX_TICE (tsurf is always =< TMELT anyway); keep MIN_TICE if using
417        MaykutPolySatVap; keep MIN_LWDOWN.
418      - adapt SEAICE_MODIFY_GROWTH_ADJ code (untested) to non-legacy formulation.
419      - update output of verification exp. lab_sea (4 fwd: 11 cg2d digits except hb87,
420        + 3 AD: 6 digits except evp) and offline_exf_seaice.seaice (12 digits).
421    o pkg/salt_plume:
422      - isolate saltPlumeFlux array exch into a specific S/R called from
423        do_oceanic_phys.F
424      - add interface to pkg/salt_plume (filling of saltPlumeFlux) in pkg/thsice.
425    o verification:
426      - move untested set-up to MITgcm_contrib/verification_other.
427    o pkg/seaice:
428      - retire old way of SEAICE_AGE. Now replaced with ALLOW_SITRACER.
429    o pkg/seaice:
430      - seaice_solve4temp.F (keeping results unchanged):
431        * add 2 future run-time params to select which saturation vapor pressure
432          formula is used and how post-iteration fluxes are set.
433          Temporary set these 2 params according to option SOLVE4TEMP_LEGACY;
434        * New piece of code (not used) to update surf. atmos. heat flux F_ia using
435          the linearized expression to stay consistent with tsurf finding.
436      - seaice_freedrift.F avoid floating exception in sqrt(y) since y=sqrt(x*x)-x
437        can be < 0.
438    o pkg/seaice/seaice_solve4temp.F (SOLVE4TEMP_LEGACY undef):
439      - remove from F_ia (and from it's derivative dFiDTs1) the contribution of
440        conductive heat flux F_c , and add it explicitly when updating tsurf as
441        solution of: Fc = Fia + d/dT(Fia - Fc) *delta.tsurf
442        so that now F_ia has a consistent meaning through the entire routine.
443        This causes differences at truncation level: update output of fwd exp.
444        global_ocean.cs32x15.seaice.
445    o pkg/seaice:
446      - lots of editing/cleaning in seaice_solve4temp.F + better documentation
447        of arrays, sign/direction of fluxes; no effect on results.
448      - replace hard coded 273.16 (=previous value of celsius2K) by celsius2K
449        in seaice_budget_ocean.F & seaice_solve4temp.F (SOLVE4TEMP_LEGACY part);
450        note: this should have been done before changing celsius2K default.
451      - to keep results unchanged, add back old value of celsius2K in verification
452        exp. input*/data : lab_sea (AD), offline_exf_seaice (fwd+AD) & seaice_obcs
453      - replace hard coded seawater freezing temp in seaice_solve4temp.F (part
454        SOLVE4TEMP_LEGACY) of 271.20 (=previous value of celsius2K + default
455        value of SEAICE_freeze) by celsius2K+SEAICE_freeze so that seawater
456        freezing temp is consistent with value in seaice_growth.F ; this causes
457        differences at machine truncation level: update lab_sea AD output (3/4).
458    o pkg/seaice:
459      - mask (in exf_init_fixed.F) atemp,aqh,evap,precip,runoff,lwflx,areamask
460        and climsst/sss even when using seaice (to prevent calculation that might
461        use SST on land); does not affect any verification exp.
462      - apply mask to taux,tauy (in seaice_get_dynforcing.F); update output
463        of lab_sea.fd & lab_sea.hb87 and global_ocean.cs32x15.seaice_dynmix.
464    o pkg/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
465      over land (non-legacy code)
466    o vectorize salt_plume package:
467      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
468      - this code computes plumebk everywhere (also over land), thus requires
469        code to avoid divisions by zero and catch the case of kLev=Nr.
470      - efficiency of salt_plume_frac is still sub-optimal
471    o tools (genmake2):
472      - fix makefile NAME specification (option: -makefile NAME) by adding
473        "-f $MAKEFILE" in few places where it was missing including makedepend
474        command (contribution from Paul).
475    
476    checkpoint63i (2012/01/24)
477    o model/src:
478      - add factorized versions of some EOS code to find_rho.F,
479        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
480    o model/src:
481      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
482      - change default celsius2K from 273.16 to 273.15
483      - to keep results unchanged, add back old value of celsius2K in verification
484        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
485         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
486    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
487      to make TAF generate vectorizable code
488    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
489       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
490       have flags that do this more efficiently.
491    o pkg/diagnostics/diagstats_calc.F
492      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
493    o pkg/obcs (with exch2):
494      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
495        and remove code (in obcs_readparms.F) which was based on EXCH of indices
496        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
497    o pkg/exf and seaice exp:
498      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
499        so that switching off area & heff advection flags does not affect results.
500      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
501      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
502        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
503        results of verification experiments: 1D_ocean_ice_column(fwd),
504        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
505        and offline_exf_seaice (all 4).
506    o pkg/seaice:
507      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
508        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
509      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
510        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
511        not multi-dim advection;
512      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
513        SHORTWAVE_HEATING #undef.
514    o optim: make Makefile more robust (?)
515    o pkg/obcs:
516      * fix treatment of obcs_read_pickup for TAF
517    o pkg/shelfice:
518      * add missing initialisation of num_shifwflx
519      * new adjoint verification exp. for isomip
520      * change Prandtl and Schmidt numbers from generic formulations
521        (in terms of model diffus. and visc.) to separate runtime
522        parameters, with Holland and Jenkins (1999) default values.
523    o pkg/exf (interpolation):
524      - extended input field (2 rows) near the N & S poles:
525        * fill in with the symetric value (when even Nb of data in longitude)
526        * add average value at the poles only for scalar quantities ; for vector
527          component interpolation, skip the averaging and keep duplicated values,
528          unless the 2 components have same location (uvInterp=T) in which case
529          interpolate the 2 components together using S/R EXF_INTERP_UV.
530      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
531        together: this allows to account properly for local orientation when
532        averaging at N & S pole.
533      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
534        exf-interpolation near N & S poles. Undef by default.
535      - add debug check/print on 1rst iter if debugLevel >=2.
536    o pkg/exf:
537      - change masking flags definition (no longer "parameter"), put them in
538        common block and set them in S/R EXF_INIT_FIXED.
539      - change recognized masking flag from s,u,v to c,w,s since the mask
540        to use (maskC,W,S) depends on position on model grid and has little to
541        do with scalar/vector difference; fix masking if using P-coordinates.
542      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
543        and update results of exp. global_with_exf (x2).
544      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
545    o pkg/obcs
546      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
547    o pkg/exf (interpolation):
548      - assume periodicity in X only if input field cover full longitude range.
549      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
550        and should vectorise).
551      - fix input lat of the 2 added row (in case we provide N.pole data).
552    
553    checkpoint63h (2011/12/30)
554    o pkg/seaice:
555      - change declaration of UVM from _RL to _RS in order to get B-grid
556        uIce,vIce monitor when _RS = real*4
557    o pkg/offline:
558      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
559      - compute vertical velocity if not read from file (switch on exactConserv
560        & staggerTimeStep);
561      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
562    o verification:
563      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
564        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
565        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
566      - update output of exp. global_ocean.cs32x15.viscA4 after changing
567        grid-file angles (used here for coriolis-3d);
568      - remove (or gzip) few files not needed to run fizhi-cs experiments.
569    o pkg/exf (vector interpolation):
570      - rotate vector component toward local grid-axis orientation using grid-angles
571        (stored in GRID.h) instead of locally computed rotation angle; keep old code
572        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
573    o pkg/seaice:
574      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
575        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
576    o pkg/PKG_OPTIONS.h files:
577      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
578        outside of the #ifdef ALLOW_THISPKG / #endif block.
579      - update verification/*/code/PKG_OPTIONS.h files.
580    o add a verification experiment (offline_exf_seaice/input.seaice) that test
581      the B-grid LSOR solver
582    o pkg/seaice: sort out emissivity and long wave radiation step 2:
583      - add emissivity for snow and ice as new run-time parameters
584        (unfortunately) that default to the corresponding exf values; this
585        changes results in most verification experiments so that for backward
586        compatibility these parameter have to be set explicitly to inconsistent
587        values (ugly);
588      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
589        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
590        until we agree how to handle this bug properly
591    o pkg/exf (interpolation):
592      - add a set of run-time param ({inputfield}_interpMethod), one for
593        each interpolated input field, to select the interpolation method
594        with a value of zero switching off the interpolation;
595      - print interpolation parameters to standard output;
596      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
597        (to use instead runoff_interpMethod=0 in data.exf).
598      - simplify default setting of interpolation parameters (for all fields,
599        set position to match model grid cell-center position, leading to trivial
600        interpolation in case of regular Lat-Lon grid) and fix for the case of
601        non-uniform delY.
602    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
603       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
604       this factor is absolutely required, because the lw exitance (= out-going
605       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
606       where the reflectivity rho = 1-emissivity for conservation reasons. Once
607       this is established, we can remove the CPP-Flag (if we want to).
608    o pkg/seaice:
609      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
610        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
611      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
612        what the name implies (and not emissivity*BoltzmannConstant), this means
613        the old default value of 5.5e-8 now means
614        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
615        S/R exf_readparms
616      - FV-discretization of the B-grid LSOR solver, turn on with
617        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
618        of the calling routine dynsolver, so that B and C-grid code look a
619        little more alike.
620      - fix index bugs in ostres.F (B-grid code)
621    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
622    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
623      default for SEAICE_emissivity, if useEXF; requires setting a wrong
624      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
625      backward compatiblity
626    o model/src: use sigmaR in calc_ivdc
627    
628    checkpoint63g (2011/12/16)
629    o pkg/seaice/seaice_growth.F:
630      fix heat conservation of the coupled ocean-seaice system.
631      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
632      solid vs liquid water treatment is resolved via QNET.
633    o pkg/seaice/seaice_growth.F:
634      add missing term for sublimation in saltFlux, which was breaking conservation.
635    o pkg/seaice/seaice_model.F:
636      Remove this patholigical case treatment in evolution branch,
637      where it is un-necessary and breaks conservation.
638      Update global_ocean.cs32x15/results accordingly for
639      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
640    o model/src:
641      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
642      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
643    o pkg/obcs:
644      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
645      tendency for temperature and salinity that is then applied to update
646      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
647      horizontal advection and diffusion contributions on the boundary (in
648      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
649      removing the mask in S/R timestep_tracer. The advantage of this approach is
650      that the updated tracer values include contributions from the surface
651      forcing and vertical diffusion.
652      This modification changes exp4.stevens because of vertical diffusion.
653    o model/src:
654      change non-curvilinear grid setting to also work with exch2 + blank tiles:
655      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
656        face dimensions.
657      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
658        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
659        and INI_SPHERICAL_POLAR_GRID.
660      change test-experiment global_ocean.90x40x15:
661      - split the domain in many more tiles (9x4 tiles of 10x10 each);
662      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
663      - update results of both test (std & dwnslp).
664    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
665       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
666    o model/src:
667      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
668        and fix initialisation when using sigma-coords.
669    o model/src:
670     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
671       to their current value at the beginning of forward_step.F": add a new run-time
672       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
673     - set doResetHFactors=T in the following test exp:
674        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
675        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
676        and tutorial_global_oce_in_p (nonLinFS in p)
677    o pkg/ecco
678      - added IES cost term
679    o verification/advect_xz
680      - scale down the depth by 1/100 (from 200 km to just 2.km)
681      - add secondary test using divergent flow, r-star and implicit vertical advection.
682      - add note (check_conserve_TS.txt) and matlab script to check global
683        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
684    o pkg/rbcs:
685      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
686    o pkg/obcs (Stevens BCs):
687      - fix various problems in the phase speed computations of the Stevens
688        boundary conditions:
689        - sign error for western and southern boundaries,
690        - time tendencies were underestimated by factor of dTracerLev and some just
691          zero (for multidim advection schemes) -> now estimate time tendencies
692          from difference between previous (n) time level and the one before (n-1);
693          this requires storing a field per tracer per boundary, also in the pickup
694          files.
695        - replace deltaTmom in cflMer/Zon computation with dTracerLev
696        - set default phase velocity to cflMer/Zon
697      - update verification experiment exp4.stevens
698    o pkg/generic_advdiff (implicit_r):
699      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
700        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
701      - fix implicit vertical diffusion or advection with NonLin FreeSurf
702        (was using current recip_hFacC instead of future recip_hFacC): set future
703        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
704        solver S/R ;
705      - fill diagnostics of vertical advective fluxes (computed from tendency)
706        when using implicit vert. advection;
707      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
708         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
709         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
710         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
711    o pkg/diagnostics:
712      - add diags for T & S tendency which goes through Adams-Bashforth.
713    
714    checkpoint63f (2011/11/30)
715    o pkg/obcs/obcs_calc_stevens.F:
716      - join some loops to reduce number of if-statements
717      - fix a bug in code for northern and southern boundaries.
718    o pkg/seaice/seaice_init_varia.F
719      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
720        caused zero ice-velocities for the B-grid code
721    o pkg/seaice/seaice_init_fixed.F
722      - fix a bug in the initialisation of the second metric terms
723        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
724      - this affects all seaice configurations with useCurviLinearGrid = .true.
725        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
726        = .true. (default)
727      - the only verification experiment affected is global_ocean.cs32x15:
728        icedyn, seaice, and seaice_dynmix (AD)
729    o pkg/thsice/thsice_diagnostics_state.F
730      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
731        not contain garbage that can lead to surprises in diagstats_calc.F
732    o model/src:
733      - move bi,bj loops inside INTEGR_CONTINUITY ;
734      - call INTEGR_CONTINUITY directly from forward_step.F
735        (previously called from momentum_correction_step.F)
736      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
737        forward_step.F and pkg/ecco/the_main_loop.F
738    o model/src/do_oceanic_phys.F:
739      - reset addMass to zero only if useICEFRONT ;
740      - separated k-loop for rhoInSitu calculation ;
741      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
742        and at constant T,S (= WdRHOdP);
743      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
744        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
745        transport of locally-referenced potential density);
746        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
747    o gluemnc:
748      - replace ncrcat with ncks when adding variables to *.glob.nc
749      - change the way variables without record dimensions are handled so that
750        files that have variables with and without record variables can be glued:
751        add a record dimension with a new unique name to be able to differentiate
752        between variable with and without a-prior record dimensions. Remove
753        this record dimension before adding the variable to the *.glob.nc file.
754        This procedure automatically works also for grid.*.nc files that do not
755        have any record dimension.
756    o verification/cpl_aim+ocn:
757      - generate new reference output on baudelaire (gfortran, mpich2) (previously
758        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
759    o pkg/obcs/obcs_calc_stevens.F:
760      - add code for northern and southern boundaries.
761      - reorder some loops to save some operations and so that drFBar can be scalar
762    o model/src:
763      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
764        truncation) and add diagnostics for Adams-Bashforth tendency increment.
765      - update test-exp. AD output:
766        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
767      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
768        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
769        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
770        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
771        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
772        tutorial_plume_on_slope.
773    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
774      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
775      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
776      does not even come with an F77 compiler anymore, this should not be
777      a limitation
778    
779    checkpoint63e (2011/11/06)
780    o pkg/seaice adjoint of LSR:
781      - substantially rework STORE dirs.
782      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
783        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
784        and only perform SOLV_MAX_FIXED adjoint iters.
785        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
786        always goes to same record, meaning that the last forward field will be
787        the one used in the adjoint - an approximation.
788      - now produces non-zero LSR-related gradients, and acceptable gradients for
789        An's zonal (x-z) test case (to be checked in)
790      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
791        (but these are screwed up by the thermodynamics in the first place);
792        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
793        output_adm.txt also reflects changes to seaice_lsr
794      - global_ocean.cs32x15:
795        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
796          (output_adm.seaice.txt was updated)
797        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
798          (output_adm.seaice_dynmix.txt)
799    o test-exp. exp4+stevens:
800      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
801    o pkg/seaice (lsr solver):
802      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
803        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
804      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
805      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
806        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
807      - compute (with new S/R) and print initial (+ free-driff sol. if available)
808        and final residual of linearised system.
809    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
810      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
811    o pkg/obcs: Stevens BCs (still only for east and west)
812      - fix Stevens BCs by using intermediate velocities of previous
813        time step as "baroclinic" contribution rather velocity of one grid cell
814        inside the boundaries; more consistent but makes the entire treatment
815        more complicated, requires new pickup files and two new S/Rs:
816        obcs_copy_uv_n and obcs_save_uv_n
817        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
818        (undefined by default)
819      - silently move computation of some grid factors into separate loops to
820        save some recomputations
821      - add a hack for non-linear free surface
822      - add a verification experiment to exp4 that tests this code
823    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
824    
825    checkpoint63d (2011/10/25)
826    o pkg/obcs + seaice-dynamics:
827      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
828        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
829        values (consistent with an implicit method).
830      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
831        return to older implementation (same results as before); note that none of
832        the "experimental" OBCS_SEAICE options are implemented in the new version.
833      - switch test exp. seaice_obcs to use new version (update output).
834    o pkg/seaice:
835      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
836      - add parenthesis in Water-Ice drag calculations (evp & lsr);
837      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
838        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
839      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
840        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
841    o pkg/layers:
842      - Include potential density as new coordinate (Thanks to David Munday)
843    o pkg/dic:
844      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
845        carbonate computation/output to CALC_PCO2_APPROX
846    o pkg/generic_advdiff
847      - make TAF generate code that vectorizes:
848        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
849    o model/src:
850      - improve vectorization also for adjoint code of
851        solve_tridiagonal and solve_pentadiagonal. As this requires up to
852        5 new 3D-fields, this code is only turned on for the combination of
853        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
854        for singular matrix check (only for TARGET_NEC_SX).
855      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
856        ALLOW_AUTODIFF. This flag now needs to be set outside of
857        solve_tri/pentadiagonal.F
858    o pkg/exf:
859      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
860        optional namelist EXF_NML_OBCS).
861      - add many debug-print (to trace down where pkg/cal error msg comes from)
862    o pkg/mom_vecinv/mom_vi_hdissip.F
863      - rearrange loops so that vectorization is improved and in particular
864        the adjoint routine vectorizes. The code is a little longer now, but I
865        think easier to read.
866        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
867    o pkg/seaice:
868      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
869    o pkg/exch2:
870      - alternative code (without tile x tile matrix) for cumulated (global) sum;
871        used as default; keep using matrix version in adjustment.cs-32x32x1.
872    o tools/build_options:
873      - after merging some MPI and/or multi-threads specific optfiles so that
874        the modified default optfile support both built (using genmake2 -mpi
875        for the MPI built, using genmake2 -omp for OpenMP built),
876        move now obsolete optfiles to tools/build_options/unsupported/
877       (add copy of email sent to support list in doc/optfiles_changes.txt)
878    
879    checkpoint63c (2011/09/28)
880    o pkg/ebm:
881      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
882        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
883    o pkg/seaice (SItracer pickup)
884    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
885      To be done:
886      - thorough testing of missing fields in S/R seaice_read_pickup
887      - thorough matching between generic tracers and specific fields used
888        (e.g. volume-weighted age, area-weighted age, salinity, ...)
889    o pkg/grdchk:
890      - all procs calculate and print finite-difference gradient (for testreport)
891      - change description output used by testreport;
892      - AD testing: also compare and report Finite-difference gradient;
893        => update all output_adm*.txt
894    o test exp. global_ocean_ebm:
895      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
896        and turn on exactConserve; update (fwd) output.
897    o pkg/seaice (LSR):
898      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
899      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
900        * identical results with non-CS topology (but save up to half of EXCH calls)
901        * no much changes in cs-32 verification tests since no ice at face edges
902         (differences due to convergence criteria, since nb of iterations changed)
903        * expect some differences on lat-lon-cap grid.
904        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
905    o pkg/exch2:
906      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
907        many tiles); until alternative coding is added, just add a stop.
908    o pkg/kpp:
909      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
910        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
911    o optfiles:
912      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
913        into corresponding standard one, which now support different build:
914        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
915      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
916    o pkg/obcs (seaice):
917      - add missing EXCH for uIce,vIce after applying OBCS;
918      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
919        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
920        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
921      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
922      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
923        and eedata.mth for MPI and mutlti-threaded testing.
924    o pkg/flt:
925      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
926      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
927      - fix pickup and trajectories + profiles output with multi-threads;
928      - add parameter to select group of fields to write along trajectory and
929        profile (default unchanged);
930      - only call PORT_RAND* function when flt_noise <> 0;
931      - add multi-threaded test for verification exp. flt_example.
932    o eesupp/src:
933      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
934      - USE_OMP_THREADING: check that number of threads (from eedata) matches
935        actual number (from env.var. setting).
936    o pkg/ebm:
937      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
938      - add multi-threaded test for verification exp. global_ocean_ebm
939    
940    checkpoint63b (2011/08/29)
941    o pkg/ebm:
942      - fix sign of runoff;
943      - update directly forcing fields (Qnet,EmPmR) to use standard
944        external_forcing_surf.F (remove ebm_forcing_surf.F);
945      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
946      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
947        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
948      - update global_ocean_ebm parameters file data and update output (fwd+ad).
949    o verification/matrix_example:
950      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
951        MPI and mutlti-threaded testing.
952    o pkg/matrix:
953      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
954      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
955      - fix for multi-threaded (remove DATA statement);
956      - use standard DIFFERENT_MULTIPLE function;
957      - add MATRIX_OPTIONS.h
958    o verification/matrix_example:
959       To allow to split the domain in several tiles, change the domain size
960        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
961        Western side) of land points.
962    o (*_)write_pickup:
963      - fix few bugs in mypackage_read/write_pickup.F
964      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
965        array of length 1 (was caught by compiler syntax-check).
966    o pkg/diagnostics (velocity potential solver):
967      - fix initialisation of main diagonal matrix (for overlap values)
968    o tools/build_options:
969      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
970        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
971      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
972        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
973        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
974        and use "-devel" testreport option for standard testing on baudelaire.
975    o pkg/grdchk:
976      - Assume that all gradient-check position are within the same tile
977        corresponding to global indices (iGloTile,jGloTile) and that
978        positions (i,j indices or nbeg) are local to this tile;
979      - set tile local-indices and proc. number according to tile global-indices;
980      - remove grdchkwhichproc from namelist (retired param);
981      - send adjoint gradient to all procs so that all procs print it to STDOUT;
982      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
983    o adding package bbl (Bottom Boundary Layer)
984      description in MITgcm/pkg/bbl/bbl_description.tex
985      example/test experiment in MITgcm_contrib/bbl
986    o adjoint verifications
987      - changed 5 experiments to multi-tiles
988        * global_ocean.90x40x15
989        * obcs_ctrl
990        * offline_exf_seaice
991        * tutorial_dic_adjoffline
992        * tutorial_tracer_adjsens
993        changed reference output for those that crossed tile boundaries
994        (changed choices of gradient check positions)
995      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
996      - temporary bug fix in grdchk_loc.F for obcs
997    o genmake2 & testreport
998      - add target "obj" (just for OBJFILES files) to Makefile;
999      - add option to specify FEXTRAFLAGS on command line.
1000    o pkg/mypackage:
1001      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
1002    
1003    checkpoint63a (2011/08/02)
1004    o pkg/diagnostics (velocity potential):
1005      - fix velocity-potential calculation when using OBCS: balance net inflow
1006        at each level (new S/R OBCS_DIAG_BALANCE).
1007      - fix some of the problems with OBCS in stream-function calculation.
1008    o pkg/exf/exf_readparms.F
1009      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
1010        EXF_NML_OBCS) more consistent, so that you need not have these lists
1011        in data.exf when they are not used.
1012    o optim/optim_readdata.F:
1013      - add some output about obcs variables that might help debugging
1014      - add a check about nvarlength
1015    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
1016    o pkg/diagnostics (velocity potential):
1017      - fix mask for OBCS (still problems in stream-function with OBCS);
1018      - add specific parameter (default = main code CG2D params) for solver;
1019      - in case of poor convergence, use solution corresponding to lowest residual.
1020    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
1021      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
1022      and should be avoided where possible.
1023    o model/src (rStar):
1024      - include r* effect on reference-state (PhiRef) in totPhiHyd
1025        (so that it's really the potential anomaly at the cell center);
1026        affect solution only if z* with full pressure in EOS.
1027      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
1028        update output (because of z* in totPhiHyd and viscA4 changes);
1029      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
1030        @ constant r) until interpolation at constant r is implemented.
1031    o pkg/diagnostics
1032      - fix RCENTER diagnostics in case cell center is not at interface middle
1033    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
1034      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
1035      that THETA and SALT are "conservative temperature" and "absolute
1036      salinity"
1037    o pkg/ctrl
1038      - fix computation of endrec in s/r ctrl_init_rec
1039      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
1040    o pkg/seaice/seaice_growth.F
1041      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
1042        remove then obsolete STORE directives
1043      - fix STORE directives for tice and tices, so that only the
1044        appropriate part of the fields are stored (and not the entire
1045        field); update global_ocean.cs32x15.seaice AD output.
1046      - cosmetic changes: adjust CPP flags and indentation for better
1047        legibilty
1048    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
1049      Chris Wilson)
1050    o pkg/gmredi:
1051       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
1052       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
1053    
1054    checkpoint63  (2011/07/11)
1055    o pkg/exch2:
1056     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
1057     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
1058       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
1059       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
1060    o pkg/diagnostics:
1061     - deal with pairs of post-processed diags which are computed together; in
1062       particular, re-order list of diags within 1 file to save 2nd computation.
1063     - add S/R to compute velocity stream-function (called after velocity-potential
1064       calculation) from divergence free transport -> new diagnostics "PsiVEL".
1065     - add parameter to select grid-point location where PsiVEL == 0.
1066    o eesupp/src:
1067       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
1068       (specific S/R needed with exch2 topology - for now, just print an error msg)
1069    o pkg/shelfice
1070     - Implement friction velocity-dependent transfer coefficients following
1071       Holland and Jenkins, JPO, 1999
1072       Original code by M. Losch with small modifs.
1073       Enable with CPP option SHI_ALLOW_GAMMAFRICT
1074       and runtime flag SHELFICEuseGammaFrict
1075    o verification lab_sea & global_ocean.cs32x15:
1076     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
1077       does not miss some dependencies (but is slower) and also works with many files
1078       (default makedepend limitation for AD built).
1079     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
1080    o pkg/diagnostics:
1081     - add run-time parameter "useMissingValue" (def=False) to fill land-point
1082        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
1083       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
1084     - Extend the use of "missing_value" setting from data.diagnostics for the case
1085       of counter-diagnostics (where fraction-weight is zero). This applies both to
1086       MNC and MDS output files.
1087    o pkg/seaice/seaice_growth.F:
1088      - add 'a priori' cap of latent heat flux based on actual mass considerations
1089        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
1090        non-legacy seaice_solve4temp.
1091      - add diagnostic of the residual sublimation freshwater flux (the freshwater
1092        flux taken from the ocean if the total actual latent heat fluxes exceed
1093        the maximum)
1094      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
1095       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
1096      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
1097       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
1098      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
1099      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
1100    o verification 1D_ocean_ice_column:
1101       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
1102       update results
1103    o pkg/diagnostics:
1104     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
1105       which are not filled-up but computed from other diags ; In this case, the mate
1106       diag points to the primary (filled-up) diag to used for post processing.
1107     - Update Velocity-potential computation using post-processed diag framework.
1108     ==> Change the ordering of fields and time-periods in MDS output file
1109       when using periodic averaging: now writes one time record with the full set
1110       of fields for this time period, then the next time reccord (it used to be
1111       one field with the full set of time records then the next field).
1112         Note: this is now similar to NetCDF (MNC) output file. <==
1113    
1114    checkpoint62z (2011/06/21)
1115    o adjoint monitor:
1116     - Add adjoint monitor output for packages exf, seaice
1117       and update relevant testreport output
1118    o pkg/seaice:
1119     - re-order diags inits so that they appear in order in available_diagnostics.log
1120     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
1121       area/heff/hsnow preceeding thermodynamic growth/melt.
1122     - modified diag: SIdA; output actual effect, as the description states.
1123     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
1124     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
1125       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
1126        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
1127     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
1128     - added diagnostics for seaice generic tracers (SItr*).
1129     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
1130     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
1131     I. Fenty: 18-Jun-2011:
1132     Minor changes to seaice package:
1133     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
1134        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
1135       - Differentiated "regularization variables" from "floor variables"
1136        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
1137        * hiceMin became SEAICE_hice_reg (old hiceMin)
1138          (with _reg meaning regularization variable)
1139       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
1140        so as to ensure energy conservation when going between phases
1141      - A22 was not used anywhere
1142     2) Changed regularization procedure for heffActual and hsnowActual to ensure
1143        well-boundedness and smooth adjoint in seaice_growth.F
1144     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
1145        because the old regularization always set heffActual >= 0.05 cm
1146     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
1147        on AREA when HEFF > 0.
1148      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
1149        requiring that DISABLE_AREA_FLOOR *not* be defined
1150     Affected verifications:
1151      - 1D_ocean_ice_column (output.txt output_adm.txt)
1152      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
1153    o pkg/diagnostics:
1154      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
1155      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
1156        (was _RL, now integer) with option = 0 to retrieve all levels.
1157      - add pieces of code to compute velocity potential at each level (new diagnostics
1158        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
1159        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
1160      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
1161        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
1162        and in diagnostics_fract_fill.F (do not need a valid pointer for the
1163        diagnostics counter-mate); check that definition of counter-diagnostic
1164        includes a valid counter-mate (in diagnostics_set_levels.F).
1165    o model/src (rStar):
1166      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
1167        affect solution only if z* with full pressure in EOS;
1168        update output of test-exp global_ocean.90x40x15.
1169    o pkg/seaice:
1170      - introduce siEps=1e-5 parameter
1171      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
1172      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
1173      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
1174        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
1175        as well as ice cover age and ridging index (attached to AREA).
1176        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
1177        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
1178        Up to SItrMaxNum=3 tracers can be used simultaneously.
1179    o pkg/salt_plume:
1180      -introduce SPsalFRAC run time parameter that sets the fraction of the
1181       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
1182       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
1183    o model debug options:
1184      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
1185        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
1186      - Refine debug-msg printing selection (3 new levels):
1187        debugMode  : controls printing of debug messages (sequence of S/R calls).
1188        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
1189         debLevZero =  0 ; /* level of disabled aux. msg printing */
1190         debLevA =  1 ; /* level of minimum  aux. msg printing */
1191         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
1192         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
1193         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
1194         debLevE =  5 ; /* level of extensive debug printing */
1195        New debugLevel default: with default debugMode value (=F),
1196          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
1197          and if debugMode=T, default debugLevel = 4 (debLevD).
1198        Relation with previous settings:
1199         debLevB (=2) corresponds to former debLevA (=1)
1200         debLevD (=4) corresponds to former debLevB (=2)
1201        Note:
1202         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
1203         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
1204            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
1205      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
1206        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
1207    o pkg/obcs:
1208      - change OBCSfixTopo default from True to False (should not change the results);
1209        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
1210    o pkg/thsice:
1211      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
1212        2nd layer seaice sublimation (unlikely to happen)
1213      - use Interior mask for OBCS in thsice_advection.F (similar to what is
1214        done in gad_advection & seaice_advection).
1215    o adjoint:
1216      bug fix spotted by Gael Forget:
1217      seaice_advection and thsice_advection still had
1218      legacy CPP options to avoid CS corner updates for adjoint
1219    o pkg/seaice:
1220      => Change some of the defaults (2011/05/29):
1221         - change SEAICEuseFluxForm default (from False to True)
1222         - change DIFF1 default (from 0.004 m/s to 0. m/s)
1223         And print warnings if DIFF1 is not set in data.seaice and centered
1224          avection scheme is used without any diffusion.
1225      also:
1226      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
1227      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
1228      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
1229        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
1230        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
1231      update results of test exp.:
1232         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
1233             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
1234             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
1235         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
1236         seaice_obcs: output (SEAICEuseFluxForm=T)
1237      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
1238          for standard fwd & AD lab_sea tests (to keep the same output).
1239    o pkg/seaice/seaice_growth.F:
1240      - use Ian Fenty's capping formulas for actual ice
1241      thickness thoughout EVOLUTION branch.
1242      - put treatment pathological case #2) in CPP brackets
1243      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
1244      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
1245    o pkg/seaice:
1246      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
1247      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
1248      also pass fac as a param, which can be 1. (to update the tendency
1249      field) or the time step (to update the field itself).
1250      - seaice_advdiff.F: for multidim, call seaice_diffusion with
1251      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
1252      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
1253      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
1254      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
1255    o pkg/seaice:
1256      diffusion with centered advection scheme (diffus.F & advect.F):
1257      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
1258        to just compute the laplacian of input-field.
1259      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
1260      - fix flux-form version in diffus.F to conserve tracer.
1261      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
1262       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
1263    
1264    checkpoint62y (2011/05/26)
1265    o pkg/seaice:
1266     - seaice_growth.F : in EVOLUTION branch, always include
1267       a_QSWbyATM_cover in qnet (as it should be).
1268     - verification/global_ocean.cs32x15 : update results accordingly
1269       (output.seaice.txt output_adm.seaice.txt).
1270    o pkg/seaice + obcs:
1271     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
1272       equivalent of assuming no tracer gradient outside the OB region.
1273       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
1274     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
1275       after changes above);
1276     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
1277       only at OB location (instead of over a band of OLx width).
1278    o pkg/seaice:
1279     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
1280       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
1281    o pkg/obcs:
1282      - split header file "OBCS.h" into 4 separated files:
1283        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
1284       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
1285         (contain no conditional statement which depends on OBCS options).
1286      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
1287        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
1288    o ctrl, cost, grdchk & autodiff pkgs:
1289      - make options file more standard (like other {PKG}_OPTIONS.h file but
1290        with AD_CONFIG.h); clean-up some of the included header files.
1291    o pkg/obcs:
1292      - do not mask tracer when applying OB (tracer == 0 could generate problems)
1293      - apply tracer OB values to tracer field only at OB location (instead of
1294        over a band of OLx width)
1295      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
1296      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
1297        obcs_apply_tloc.F & obcs_apply_sloc.F
1298    o obcs in model/src:
1299      - call OBCS_APPLY_W only if NonHydrostatic.
1300      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
1301      - reset dEtaHdt and wVel to zero outside OB interior region ;
1302      - leave tracer unchanged outside OB interior region: This has no effect
1303        on the solution but just to prevent unrealistic tracer value outside OB.
1304      - zero out velocity outside OB interior region: This has no effect on
1305        the solution but just to prevent unrealistic velocity outside OB.
1306    o obcs and non-lin free-surf:
1307       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
1308       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
1309       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
1310       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
1311       update results of test-exp. exp4(nlfs).
1312    o exp4 (nlfs) test-exp:
1313       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
1314       with NonLin-FreeSurf); update output.nlfs.txt
1315    o obcs and 2d/3d solver norm:
1316       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
1317       and outside OB interior region (will allow to place OB further inside the
1318       domain). Depending on the domain, can affects cg2d-Norm (previous
1319       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
1320       and cg3d-Norm (previous Norm was computed before canceling OB terms),
1321       e.g. in tutorial_plume_on_slope.
1322      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
1323    o pkg rbcs:
1324      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
1325      - add capability to apply relaxation to horizontal velocity uVel & vVel.
1326    o pkg/grdchk: add gradient check for control variable xx_shifwflx
1327    o pkg/shelfice/shelfice_init_fixed.F
1328      fix CPP-flag combinations
1329    o pkg/seaice: Merge iceage code of Pierre Rampal
1330      * update/change/correct ice age calculations
1331      * add age updates for pathological cases
1332      Probably needs more testing...
1333    
1334    checkpoint62x (2011/05/13)
1335    o pkg/mom_vecinv:
1336       high-order vorticity scheme: use interior masks (maskInW & S)
1337       to zero-out (outside OB) gradient of vorticity.
1338    o verification exp.:
1339       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
1340       hs94.128x64x5 and seaice_obcs ; update results.
1341    o pkg/obcs:
1342      fix bug in OBeta for YZ sections in obcs_exf_load.F
1343    o pkg/ctrl, pkg/shelfice, and optim:
1344      - add new control variable xx_shifwflx (fresh water flux underneath ice
1345        shelves). This is almost as tedious as obcs-ctrl, because the
1346        variables needs its own mask.
1347      - add a cost function term that penalizes the deviation of xx_shifwflx
1348        from the first guess (zero) in analogy to other control variables
1349    o pkg/shelfice:
1350      - start basic adjoint
1351    o pkg/ctrl:
1352      - remove extra 2D field "for good measure" when initializing in
1353        ctrl_set_globfld_[xy/xz/yz].F
1354      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
1355      - improve error messages in ctrl_set_unpack_*
1356    o OBC implementation in momentum:
1357       use interior masks (maskInC,W & S) in momentum S/R:
1358       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
1359       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
1360       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
1361       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
1362       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
1363        (and also with Leith/Smagorinsky harmonic-viscosity).
1364       Update output of experiment dome and exp4 (+nlfs).
1365    o exp4 test-exp:
1366      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
1367        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
1368        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
1369        time-varying OB at Western-side for wVel (NonHyd); update output.
1370      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
1371        and biharmonic-viscosity ; also use prescribed time varying OB.
1372    o pkg/obcs:
1373      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
1374    o model/src:
1375      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
1376      - initialise startTime & nIter0 with unlikely values: allows to set one
1377        from the other without ambiguity.
1378    o seaice_obcs test-exp.:
1379      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
1380    o pkg/obcs:
1381      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
1382        no longer needed with maskInC,W,S in pkg/generic_advdiff.
1383    o pkg/seaice:
1384      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
1385        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
1386      - fixed bug in the initialization of sea ice salinity variable HSALT
1387        in seaice_init_varia.F  (removed dependence on ICE2WATR)
1388    o fizhi-cs test exp.:
1389       switch reference output convention for these 2 non-standard test-exp,
1390        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
1391          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
1392       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
1393    o model/inc:
1394      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
1395        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
1396    o pkg/seaice:
1397      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
1398    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
1399      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
1400        and initial HSALT
1401    
1402    checkpoint62w (2011/04/26)
1403    o pkg/mom_fluxform:
1404      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
1405      - use parameter "sideDragFactor" in no-slip BC side-drag part.
1406      - update output of exp. global_ocean.90x40x15
1407    o pkg/mom_vecinv:
1408      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
1409    o update seaice exp.:
1410      use more consistent parameter values (remove "backward compatability only":
1411       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
1412      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
1413       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
1414    o update test-exp global_ocean.90x40x15:
1415      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
1416      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
1417      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
1418      o turn on zStar & viscA4 in standard set-up (dir input/)
1419        and update output files: output.txt & output.dwnslp.txt
1420    o new AD-test experiment: obcs_ctrl
1421      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
1422    o pkg/dic:
1423      fix two bugs in handling water vapour pressure in carbonate chemistry
1424      and air-sea fluxes. Found by Val Bennington and Galen McKinley
1425      (add DIC Option = WATERVAP_BUG to recover old results)
1426      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
1427    o adding allowInteriorFreezing option to check for water below freezing point
1428      at depth and bring the negative heat anomaly to the surface level
1429    o pkgs _fields_load:
1430      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
1431      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
1432        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
1433        rbcs to get interpolation weights and time reccord number.
1434      - fix multi-threading in aim_fields_load.F
1435      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
1436    o external_fields_load:
1437      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
1438       interpolation weights) to use in a periodic time-series ; do not divide by
1439       time-step to convert to integer:
1440       - this fixes case where externForcingPeriod is not multiple of time-step
1441          (Thanks to Christopher L. Wolfe)
1442       - this fixes case where externForcingPeriod is an odd multiple of time-step
1443         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
1444      store index of time-record which is currently loaded:
1445       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
1446       - needed for the adjoint but not yet used because of extensive recomputations;
1447         (to be fixed soon)
1448    
1449    checkpoint62v (2011/04/02)
1450    o verification/1D_ocean_ice_column added to test Ian Fenty's
1451      pkg/seaice_growth.F modifications for improving sea ice code differentiability
1452    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
1453      (new velocity statistics after changing maskInW & maskInS definition)
1454    o pkg/generic_advdiff with OBCS:
1455      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
1456      equivalent to assumption of no tracer gradient outside the OB region.
1457      This will affect the results if using obcs+biharmonic diffusion.
1458      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1459    o pkg/obcs:
1460      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1461      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1462      in Interior region. No impact on solution but affects Velocity monitor stats.
1463    o pkg/ptracers (adjoint)
1464      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1465      tape file for each tracer
1466    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1467      of parts of the adjoint code at run time. For now, there are only
1468      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1469      parameters are set in data.pkg.
1470      This is the lazy coward's version of doing this, but still useful for
1471      debugging. In order to do it right, everything needs to be moved to
1472      pkg/autodiff.
1473    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1474      the end; this fixes the adjoint balancing code for open boundaries.
1475    o pkg/ctrl:
1476      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1477        xx_${varname}period =   0.,  means time-independent control part
1478        xx_${varname}period = -12., means one-year-periodic monthly control part
1479      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1480        clean up ctrl_init a little, remove unused variables
1481      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1482      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1483    
1484    checkpoint62u (2011/03/15)
1485    o model/src:
1486      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1487        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1488      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1489        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1490    o pkg/ctrl/obcs/ecco:
1491      - remove obsolete, unused, and partially broken code:
1492        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1493        ALLOW_CTRL_OBCS_BALANCE
1494      - put a stop statement into ecco/cost_obcsvol.F, but also add
1495        cost_obcsvol to ecco_ad_diff.list
1496    o pkg/ecco: fix counting cost function contributions for obcs (code
1497      by Matt M.) and diffkr for diagnostics
1498    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1499      add cost penalty terms for initial uvel, vvel, eta controls
1500      and I/O for prior error files
1501    o pkg/mdsio:
1502       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1503       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1504       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1505    o pkg/ctrl:
1506     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1507       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1508       unused and superfluous variables
1509     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1510    o pkg/ecco
1511     - enable adjoint of Stevens OB
1512    o pkg/ctrl/ecco/grdchk:
1513      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1514        Fortunately, we do not have any tests for the numerous cpp-flagged
1515        option of "obcs as control parameters" so we will never know
1516        if this is an improvement (but at least now things compile).
1517      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1518      - fix some problems within never used ifdefs to make the code compile
1519    o pkg/obcs:
1520     - Refine Interior mask definition to work with more complex OB (e.g.
1521       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1522       read in Interior mask from file. Check if Interior mask is consistent
1523       with OB list of indices.
1524    o pkg/seaice
1525     - beginning code for a seaice tracer package,
1526       but currently only used for seaice age: SEAICE_AGE
1527       SEAICE_num = 4
1528       iTracer = 1: area-weighted ice age
1529               = 2: volume-weighted ice age
1530               = 3, 4: template for one-year vs. multi-year ice
1531       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1532       SEAICE_num
1533    
1534    checkpoint62t (2011/03/05)
1535    o pkg/obcs:
1536     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1537       then normal component. This ensures that the normal component is set
1538       correctly even when it conficts with tangential setting from an other OB.
1539       Affects results of test-experiment seaice_obcs: update the output.txt
1540    o pkg/obcs:
1541     - add code to monitor statistics of dynamical fields at OB.
1542     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1543       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1544       - change default: balance the Net inflow through all OB (instead of balancing
1545         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1546     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1547       to match Nortern OB inflow (OBCS_balanceFacN=0).
1548    o pkg/seaice:
1549     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1550    o pkg/seaice (seaice_growth v 1.113):
1551     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1552       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1553       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1554       runtime flag SEAICEareaFormula is kept but is inactive
1555    o model/src:
1556     - add new param to scale curvilinear grid distance and area when using
1557       a different sphere radius from the grid-files.
1558     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1559    o adjoint:
1560     - enable adjoint of Stevens OB
1561     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1562       (a bit delicate because of potentially modified adj. common block structure;
1563       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1564    
1565    checkpoint62s (2011/02/15)
1566    o pkg/seaice (seaice_growth v 1.112):
1567     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1568       computing the ice cover tendency from effective thickness tendencies. Include
1569       Ian Fenty's formula.
1570     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1571       SEAICEareaFormula.
1572     - simplify notations for the various d_HEFF/d_AREA terms.
1573    o pkg/gmredi:
1574     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1575       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1576       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1577    o pkg/seaice (seaice_growth v 1.111):
1578     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1579     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1580       also melt ice.
1581    o pkg/seaice:
1582     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1583     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1584    o pkg/cheapaml:
1585     - from Nico Wienders: New version of this package.
1586    o pkg/flt:
1587     - add CPP options to prevent floats to re-enter the opposite side of
1588       a periodic domain (default: keep periodicity)
1589    o pkg/gmredi:
1590     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1591       (needed for multi-dim advection).
1592     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1593    o model/src:
1594     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1595    o tutorial_tracer_adjsens
1596     - extend to NLFS and replace maskC by hFacC
1597       (change reference output accordingly)
1598    
1599    checkpoint62r (2011/01/24)
1600    o testreport:
1601     - add option -deloutp (-do) to remove output file after successful run
1602     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1603       extract exact list of procs from this file ; adjust COMMAND by
1604       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1605    o pkg/ecco: replace old ineffective way of penalizing deviations from
1606      first guess (of obcs) with code by Matt Mazloff
1607    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1608      exf/cal
1609      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1610        and handle case of obcs?period == 0
1611        Not affected by these changes: There is still an inconsistency in
1612        the computation of start/endrec for the obcs variables for ALLOW_CAL
1613        defined (see comment by Menemenlis, 7-Mar-2003)
1614      - make S/R ctrl_get_gen_rec return something meaningful even if
1615        ALLOW_CAL is not defined
1616      - ctrl_getobcs?: simplify code so that it does not need to use
1617                       S/R exf_swapfields
1618    o testreport:
1619       allow to test MPI with different number of processors for each experiment:
1620       create file "SIZE.h.mpi" in each build dir.
1621       Note: update of "-command" argument not yet implemented.
1622    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1623      alleviate the need for additional 3D tapes when using
1624      the non-inear free surface in the adjoint. This is done
1625      by adding an 'update' of hfacc etc. to their current
1626      value at the beginning of forward_step.F.
1627    o pkg/seaice
1628      seaice_lsr: move stress-divergence computations out of outer pseudo-
1629      timestepping loop
1630    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1631      up, so that the calls of the ctrl_* subroutines are really at the end
1632      of the routine.
1633    o pkg/gmredi:
1634      allow to specify a 2-D horizontal map and a 1-D vertical profil
1635      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1636    o pkg/seaice:
1637      move lsr iterations from seaice_dynsolver to seaice_lsr.
1638    o pkg/seaice:
1639      reduce memory footprint of seaice mutldim advection tapes,
1640      by using a 2D tape independent of the generic_advdiff ones,
1641      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1642    
1643    checkpoint62q (2010/12/29)
1644    o model/src:
1645      - check horizontal grid-spacing for unset or zero/negative values.
1646      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1647    o pkg/flt:
1648      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1649      - precision of input and output files set according to readBinaryPrec
1650        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1651      - initial float position from tiled file was not converted to index space
1652        (looks like a bug): fixed to make it similar to initial pos. global file.
1653    o global_ocean.cs32x15:
1654       change SIZE.h of AD set-up to get same tiling as with MPI.
1655       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1656    o model/src:
1657       add flag to control printing of domain fields (bathymetry, hFac ...) in
1658       ini_mask_etc (call to plot_fieds_xy*).
1659    o pkg/thsice:
1660       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1661       over the interior only + apply EXCH at the end (like with SEAICE advection).
1662    o pkg/mdsio:
1663      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1664        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1665      - change barrier call for safe multi-threads access to 3-D shared buffer.
1666      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1667      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1668        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1669    o pkg/flt:
1670      - add fourth-order Runge-Kutta integration
1671      - add basic exch2 support (only 1 facet supported so far!)
1672    o pkg/mdsio+rw:
1673      new S/R to read local (or tile independent) vector (read counterpart of
1674       mds_writevec_loc, and front-end write_glvec_rl/rs).
1675    o global_ocean.cs32x15: additional input_ad.seaice experiment
1676        that uses pkg/seaice rather than pkg/thsice.
1677        (using multidim advection for seaice)
1678    o towards more F95 syntax for array specification in namelist:
1679      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1680        of all verification experiments.
1681           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1682          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1683      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1684    o global_ocean.cs32x15: additional input.seaice experiment
1685        that uses pkg/seaice rather than pkg/thsice.
1686    
1687    checkpoint62p (2010/12/17)
1688    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1689        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1690    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1691        allow for use of multim. advection in seaice adjoint.
1692    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1693      - first attempt to close budgets by taking into account the freshwater
1694        flux implied by the sublimation of snow and ice. So far only the
1695        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1696        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1697    o eesupp/src:
1698      new S/R with new option (NML_EXTENDED_F77) to change array specification
1699      from F95 standard to commonly accepted extended F77 form.
1700      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1701      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1702      for less tolerant f77 compiler (e.g., pgf77, g77).
1703    o globalFiles:
1704      commented out in parameter file "data" since it's not safe with MPI
1705      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1706      in this case); no longer commented out in restart test (tst_2+2).
1707    o add adTapeDir to specify a special directory where adjoint tapes are
1708      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1709      and cannot be used together with mdsioLocalDir.
1710    o nesting pkgs:
1711      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1712      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1713      - add parameter files + utils dir + output from short run on beagle.
1714    o pkg/seaice:
1715        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1716    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1717      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1718    
1719    checkpoint62o (2010/11/25)
1720    o pkg/exf:
1721      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1722    o pkg/seaice:
1723      - seaice_ocean_stress: split a loop for better vectorization of the
1724        adjoint code
1725      - seaice_growth.F: fix bug in conservation of freshwater connected to
1726        capping of heff, put contribution into d_HEFFbyNEG
1727      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1728        by something more sensible (parameters that are what their name implies)
1729      - change some defaults, so that by default exf-parameters are used for
1730        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1731        to reproduce the old results, many data.seaice now contain funny values
1732        for cpAir and latent heat of sublimation
1733    o packages_readparms.F: move exf_readparms up in line so that
1734        exf-parameters are visible for other packages (e.g. seaice)
1735    o debugMode & debugLevel=2:
1736      - differentiate between debugMode & debugLevel=2:
1737        debugMode: controls printing of debug messages (sequence of S/R calls).
1738        debugLevel: controls printing of algorithm intermediate results and stats.
1739      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1740        => allows to print debug-stats without all sequence of call messages.
1741      - switch control of debug print from debugLevel to debugMode in many S/R.
1742    o pkg/obcs (obcs-sponge):
1743        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1744        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1745    o pkg/generic_advdiff:
1746      - record overlap minimum size for each advection scheme;
1747      - refine criteria on overlap minimum size;
1748      - check and stop (in gad_check) if overlap size is too small.
1749    o pkg/obcs:
1750      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1751        once, in ptracers_implicit.F)
1752      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1753        apply OB values when tile has OB)
1754    o model/src, coriolis setting:
1755      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1756        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1757        files (selectCoriMap=3) with any grid.
1758      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1759    o pkg/seaice/seaice_growth.F:
1760        a few cosmetic changes that reduce the number of lines of code
1761    o pkg/obcs: add boundary conditions following Stevens (1990)
1762      - the code follows old MOM/NAOSIM code
1763      - so far it is only implemented for the eastern and western boundaries
1764        and NOT for pTracers
1765    o pkg/rbcs:
1766      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1767        beginning of the first rbcs forcing period.
1768      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1769        offline package, i.e., one file per time, labeled by iteration number;
1770        deltaTrbcs sets the timestep with which the data was generated;
1771        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1772      - rbcsForcingCycle=0 makes forcing non-cyclic.
1773      - make arithmetic safe for negative times and odd forcing periods.
1774    
1775    checkpoint62n (2010/11/09)
1776    o pkg/seaice:
1777        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1778    o pkg/obcs:
1779       New S/R to copy tracer value from the OB location to narrow band region
1780        (width = same as overlap) beyond the OB: preserve OB value (needed for
1781        high-order scheme) which were overwritten by EXCH call if in overlap
1782        region. Applied to theta, salt, ptracer and advected seaice variables.
1783       With seaice: use maskInC in similar way as in gad_advection.F,
1784        in seaice_advection.F and advect.F.
1785       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1786        4th order Adv.Scheme. for pasive salt and ptracer.
1787    o tools/genmake2:
1788      - when looking for an optfile (not specified), only search for Fortran compiler
1789        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1790      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1791        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1792      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1793        an optfile, but otherwise default was just "cpp".
1794      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1795      - when "CC" is not set in the optfile, look for possible C compiler
1796        (instead of just setting CC=cc)
1797      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1798        => add a ".F" to ".o" rule for source files with no "#include" (such as
1799           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1800      - move gfortran before g77 in list of possible Fortran compiler (consistent
1801        with reference compiler switch from g77 to gfortran)
1802    o pkg/seaice:
1803      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1804        seaice_check that stops the model, when the CPP flag is used.
1805      o seaice_growth.F: make capping of ice volume conserving by returning the
1806        capped ice as freshwater to EmPmR. This does not change the verification
1807        experiments but will change runs where the capping is acutally active
1808    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1809      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1810         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1811         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1812    o tools/genmake2:
1813      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1814      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1815      - clean previous genmake log files before anything else.
1816      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1817        files only with "CLEAN" target (instead of "Clean");
1818    o pkg/generic_advdiff:
1819      Change OBCS in multiDim advection (gad_advection.F):
1820       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1821       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1822       which were applying future time-step OB values.
1823      This way, all explicit calculations use current-time-step OB values
1824       (simpler and more consistent).
1825      Affects results when set-up uses time-varying OBC and multi-dim advection;
1826       update output of experiment seaice_obcs.
1827    o pkg/seaice:
1828      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1829       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1830         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1831      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1832       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1833       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1834    o pkg aim (2010/10/26):
1835      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1836        formulation with obliquity, eccentricity, ... as run-time parameters,
1837      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1838        upward shortwave radition at the surface (all-sky and clear-sky).
1839    o pkg/obcs:
1840      - writing sections with globalFiles=T does not work: switch to tiled-files
1841        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
1842      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
1843      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
1844    
1845    checkpoint62m (2010/10/21)
1846    o pkg/seaice: vectorize seaice_solve4temp.F
1847      - move iterations loops outside of i/j-loops
1848      - requires 2D arrays for TB and effConduct
1849      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
1850        modified in this routine
1851      - a little bit of clean up, adjusting indentation, etc.
1852      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
1853        performance and '**TWO' by '**2' (because TWO is a float),
1854        replaced ONE, ZERO
1855    o eesupp/src:
1856       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
1857    o pkg/seaice/seaice_growth.F
1858      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
1859      merging process. The merged routine has two branches, and one activates the 'evolution'
1860      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
1861      In summary, here is what the '10/10 revision' did consist of
1862        part 1: seaice_growth.F revisions 1.71 to 1.75
1863          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
1864            The emphasis here was on improving readability (e.g. by trying to use meaningful
1865            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
1866        part 1.5:
1867          - revising the lab_sea experiment to make it a more useful (i.e. stable
1868            and representative of an actual model run). This was done by generating a
1869            (winter) pickup to start from, switching back the main experiment dynamic
1870            solver from evp to lsr, having one of the experiments use the free drift solution.
1871        part 2: seaice_growth.F revisions 1.76 to 1.85
1872          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1873          - Sorting out the various fields units and sign (set early on and reset at the end)
1874            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1875            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1876          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1877            and simplifying logical expressions to further improve readibility.
1878        part 3: seaice_growth.F revisions 1.86 to 1.89
1879          - Re-organize the blocks of code more logically.
1880          - Merging the '_if.F' pieces that add something new.
1881    o pkg/thsice:
1882      - vectorize thsice_solve4temp and thsice_get_exf.
1883        Problem: thsice_solve4temp has an unvectorizable statement that
1884        might also be problematic for TAF
1885      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1886        does not change the verifcation experiment, but will change all
1887        experiments that have this flag undefined (not tested in verification);
1888        a little reorganization to save a few 2D fields and recomputations
1889      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1890      - 2nd step:  fix some store dirs
1891        o seems to work somewhat, i.e. using ifort but not g77
1892        o likely cause are incomplete init. or recomputation
1893        o start verification/global_ocean.cs32x15/input_ad.thsice
1894    o pkg/obcs: add support for exch2
1895      - the position of the boundary and prescribed values are specified using
1896        a global domain with exch2 facets stacked
1897        - in x for N,S boundaries (like W2_mapIO=-1)
1898        - in y for E,W boundaries (so E,W boundaries do not overlap)
1899    o pkg/mdsio: add support for writing global sections with exch2
1900        file layout is as for obcs described above:
1901        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1902        - for y-z sections, facets are stacked in y
1903    o pkg/thsice:
1904       - change a few routines for better vectorization: thsice_albedo.F,
1905         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1906         not affected, but in particular the latter routine has changed
1907         dramatically (not necessarily easier to read now).
1908       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1909       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1910    o verification/lab_sea:
1911      - overhaul of the forward model experiments. The main motivation
1912        for this revision is that lab_sea has proven quite fragile (when
1913        changing the sea-ice code, and switching platforms) to a point
1914        when failures were very hard to attribute to specific code problems.
1915      - the suspected reason for this fragility is noise amplification by evp so,
1916        to start with, we decided to replace evp with lsr in the main experiment.
1917      - the input.lsr experiment thus became obsolete and was removed.
1918      - it was replaced with the input.fd experiment that uses an
1919        analytical "free drift" solution as the ice velocity field.
1920      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1921        will hopefully allow us to discriminate problems due to dynamic solvers
1922        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1923        us to test additional options, along with the salt plume package.
1924      - Finally a pickup was generated (at the end of a one year run) to
1925        make the tests more representative of an actual model run. Previously
1926        the tests starting point was a 1m thickness of ice everywhere.
1927    o pkg/seaice:
1928      - introducing S\R seaice_freedrift.F that compute the
1929        analytical solution to an approximate ice momentum
1930        equation (i.e. the simple stress/coriolis balance).
1931      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1932        of the free drift velocity field, and enable its use.
1933        To actually use the free drift solution as the model ice
1934        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1935    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1936    
1937    checkpoint62l (2010/10/04)
1938    o pkg/seaice:
1939      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1940      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1941       version (with USE_ORIGINAL_SBI undef);
1942    o add hooks for new packages OASIS, the package will follow
1943      (hooks exclude the seaice pkg for now)
1944    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1945      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1946      rather than mdsio_readvector.F/mdsio_writevector.F, within
1947      adread_adwrite.F to read/write adjoint-related tapes to disk.
1948    o eesupp and pkg/mdsio: ALLOW_WHIO
1949      Option to write/read 2D fields to files including tiles halos.
1950      The main purpose is for adjoint related "tape I/O".
1951      The secondary purpose is for debugging phases.
1952      A word on those rather specifically intended purposes.
1953      The code was meant to be stripped down to the bare minimum.
1954      Typically, there is a unique and basic mapping to the global
1955      buffer (tile by tile, then proc by proc, then level by level), and
1956      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1957      meant to generate user friendly outputs of various shapes and forms.
1958      Rather it is intended, for the knowledgeabale developers,
1959      to be largely independent of the many mdsio options, to allow
1960      outputs of tiles+halos in debugging phases and in adjoint runs,
1961      and to allow some flexibility in tuning (adoint) I/O depending on each
1962      file system behavior. With regard to tuning, most of the potential knobs
1963      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1964      to specify directories, to specify the typical size of I/O calls, etc.)
1965      are not yet included, and will be added if they prove useful.
1966    o pkg/seaice:
1967       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1968    o pkg/seaice:
1969       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1970       code (seaice_budget_ice_if.F) which enable to recover old standard
1971       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1972       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1973    o model/src (rStar):
1974       use simple average (not area weighted) of rStarFac at U,V point when using
1975       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1976       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1977    
1978    checkpoint62k (2010/09/17)
1979    o adjoint
1980       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1981         Adams-Bashforth 3 + NLFS + RSTAR
1982       * some more modifs required for ECCO-GODAE v4
1983    o pkg/seaice
1984       add SEAICE_AGE_VOL option to use volume instead of area for
1985       integrating SEAICE_AGE
1986    o model/src:
1987       first check-in of sigma & hybrid-sigma coordinate code ; also includes
1988       non-linear free-surface parts ; but pressure-gradient not yet coded.
1989    o pkg/ptracers:
1990       option for ptracer to convert Salt Relax into additional EmP.
1991        tested in exp. global_ocean.90x40x15.dwnslp (update output)
1992    
1993    checkpoint62j (2010/08/25)
1994    o pkg/ggl90:
1995       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
1996    o pkg/dic: car_flux.F, phos_flux.F
1997      - reduce number of exp-calls in order to improve performance
1998      - clean up a little (replace fields by their macros, etc., fix
1999        typo in CPP-flag)
2000    o pkg/ggl90: minor changes
2001      - GGL90diffKrS was removed --> always use GGL90diffKr
2002      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
2003      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
2004        (commented out for now)
2005      - change in max/min operations to ensure that smoothing is ok
2006      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
2007      - always use diffKrNrT as background profile (i.e. never use diffKr field)
2008    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
2009    o pkg/dic:
2010      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
2011        vectorization
2012      - small bug fix in insol for the unlikely case of a cartesian grid
2013      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
2014        + now vectorize, which also removes adjoint recomputations;
2015        + replace integer maksp1 by _RL maskp1
2016        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
2017    
2018    checkpoint62i (2010/07/21)
2019    o pkg/flt:
2020      - with OBCS: stop floats which enter the OB region
2021    o model/src:
2022      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
2023        for implicit vertical advection.
2024    o pkg/seaice:
2025     - account for melting in seaice age evolution.
2026     - remove double counting of seaice ridging effect on seaice age.
2027    
2028    checkpoint62h (2010/06/18)
2029    o pkg/exch2:
2030     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
2031    o tools/genmake2
2032      - remove "-pdefault" option: redundant with the use of "packages.conf";
2033      - remove file pkg/pkg_default : set the default as a pkg group
2034        ("default_pkg_list") defined in pkg/pkg_groups;
2035      - fix for case pkg/pkg_depend is missing (was hanging before);
2036      - add option "-pgroups" to specify a different pkg_groups than the default.
2037    o verification/adjustment.cs-32x32x1:
2038       add a "minimal" set-up test (code_min & input_min) which only compiles
2039       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
2040    o tools/genmake2
2041      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
2042      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
2043    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
2044      files are nearly the same anyway.
2045      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
2046       - redefinition of tau(i,i) (by a factor of ustar)
2047       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
2048       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
2049       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
2050       - replace
2051         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
2052         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
2053         by
2054         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
2055         (changes results)
2056       -> exf_bulkformulae v1.22,
2057          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
2058          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
2059                    output.txt 1.63
2060           offline_exf_seaice: output.seaicetd.txt 1.7
2061           seaice_obcs: output.txt 1.10)
2062      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
2063       -> exf_bulkformulae v1.23,
2064          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
2065          and global_ocean.cs32x15.icedyn (only 11 matching digits)
2066      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
2067    o adjoint of exch-1:
2068     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
2069       (note: was already like this when using EXCH-2) and remove flow dir
2070       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
2071     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
2072     - update pkg/exch2 diff list.
2073    
2074    checkpoint62g (2010/05/19)
2075    o eesupp/src (exch-1):
2076     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
2077       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
2078       (renamed to exch1_*rx_cube.F).
2079     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
2080       to call new exch1 S/R ; update Makefile and .cvsignore.
2081     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
2082       exch2_xy_rx later)
2083      Note: after updating your code, need to run "make clean" in eesupp/src
2084    o test experiment bottom_ctrl_5x5:
2085       new output_adm.txt with fewer grdchk & less monitor output.
2086    o model/src:
2087      remove the call to ini_cori in initialise_varia.F (just keep the usual one
2088       in initialise_fixed.F). More consistent with coriolis & horizontal grid
2089       beeing treated in the same way (ini_grid is not called a 2nd time).
2090    o pkg/exf:
2091      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
2092      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
2093      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
2094      - cosmetic changes to exf_bulkformulae.F to make it look more like
2095        exf_bulk_largeyeager04.F
2096    o eesupp/src (exch-1):
2097      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
2098      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
2099        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
2100        (even without using MPI).
2101      - Message mode: move RecvAck setting (indicator of buffer being ready)
2102        from send_put to recv_get S/R (was useless before, but not sure if
2103        it's much more useful now);
2104      - Switch the order of sync: MPI-proc 1rst and then threads;
2105      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
2106      - fix AD code for communication mode ='get' (but not used).
2107    o model/src:
2108      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
2109      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
2110    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
2111    o pkg/ctrl: require a specific set of control variables and exf-flags for
2112      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
2113    o model/src:
2114     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
2115       1rst forward sweep, to avoid over-writing output files during recomputations
2116       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
2117     b) 2nd version:
2118      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
2119      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
2120         writePickupAtEnd) + seaice & ptracers output;
2121      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
2122    o model/src:
2123      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
2124    o pkg/exch2:
2125      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
2126      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
2127    o pkg/autodiff & exch2:
2128      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
2129      (for now, only if ALLOW_EXCH2 is defined).
2130    o pkg/autodiff:
2131      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
2132        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
2133       + clean-up comments (_RS is not always real*4)
2134      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
2135      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
2136        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
2137    o testreport (AD-tests):
2138      no longer link files from dir "../input" (1rst link files from
2139      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
2140    
2141    checkpoint62f (2010/04/29)
2142    o model/src/the_main_loop.F:
2143      adjust store directives for seaice evp and multicategory according to
2144      pkg/ecco/the_main_loop.F
2145    o adjoint:
2146      global_sum_ad was incomplete (noted many times by many people ;)
2147      nice description by Jean U. as follows:
2148      * allreduce(var) in global_sum.F can be interpreted as
2149        reduce(sum) followed by broadcast of sum.
2150      * The adjoint of that is
2151        sum(adjoint) followed by broadcast(summed adjoint value)
2152        or in other words, allreduce(sum, adjoint vars)
2153      We were missing the sum(adjoint)!
2154      Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
2155      (noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset).
2156      The fix should produce 16-digit accuracy between
2157      single-CPU multi-tile (e.g. nSx=2, nPx=1) and
2158      multi-CPU single-tile (e.g. nSx=1, nPx-2)
2159      We'll probably change this yet again shortly
2160    o eesupp/src:
2161      - fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?)
2162    o pkg/icefront
2163      - ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving
2164        specification of addmass array based on a 2D field, which is added
2165        at bottommost wet level at each horizontal location.
2166    o model/src:
2167     horizontal grid initialisation (other than curvilinear): add code for Exch2 IO
2168     layout; (not always compatible with delX,delY setting; commented out for now).
2169    o pkg/exch2:
2170     change tile to processor setting (case nSy*nPy > 1): allows default model mapping
2171     (myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config.
2172    
2173    checkpoint62e (2010/04/15)
2174    o pkg/obcs:
2175      - fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert).
2176    o pkg/dic:
2177      -fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up;
2178        (note: not presently tested in any forward verification exp.)
2179       update tutorial_global_oce_biogeo AD output file.
2180    o pkg/exf:
2181      - account for the variation of albedo as a function of zenith angle
2182        by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h
2183    o build_options:
2184     - rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas"
2185    o pkg/dic:
2186      change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart:
2187      - use binary pickup file for restart;
2188      - initialise atmos-CO2 box from dic_pCO2 parameter;
2189      - fix multi-threaded.
2190    o pkg/rbcs:
2191     - clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ;
2192       change (+ fix IO calls) type of array RBC_mask from _RL to _RS.
2193     - add RBCS to exp4 passive tracer 01 (rbcs was previously untested)
2194       and update output.txt
2195    o pkg/kpp:
2196     - add diagnostics for KPP non-local flux of Temp, Salinity and pTracers;
2197     - change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS
2198       (= ratio of KPP non-local (salt) flux relative to surface-flux) when
2199       using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat ');
2200     - change pkg/offline to read-in average KPPghat*KPPdiffKzS from file
2201       KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile).
2202    o pkg/offline:
2203      fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor
2204      (bug was added in version 1.10 on 2007-08-23).
2205    o pkg/offline:
2206      - no need to specify periodicExternalForcing, etc ... to use offline pack
2207      - offline input files no longer just single prec --> parameter offlineLoadPrec
2208    o verification/lab_sea:
2209      change AD test to multi-tile setup and update all 4 AD output.
2210      NOTE: while cost function values remain very similar,
2211      gradients are very different, although gradient checks are self-consistent
2212      Should try to get to the bottom of this (cost function summation order?)
2213    o pkg/dic:
2214      in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid
2215      a weakness of TAF that drops part of double precision in log10 derivative.
2216      <= changes removed since problem has been fixed in current TAF version 1.9.71
2217      update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo.
2218    o pkg/ecco:
2219      add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F
2220      update all 4 lab_sea AD output.
2221    
2222    checkpoint62d (2010/03/22)
2223    o build_options:
2224      remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles.
2225    o remove unbalanced quote (single or double) in commented line of source code
2226      (may cause some warning with some preprocessor/makedepend versions).
2227    o pkg/seaice:
2228      fix seaice_model.F for adjoint (gael) and update AD results of experiments
2229       lab_sea (std + evp + noseaicedyn) and offline_exf_seaice.
2230    o testreport:
2231      add option '-runonly' (short: '-ro') to just do the run part (without make).
2232    o eesupp: remove JAM communication code (obsolete).
2233    o add option to genmake2 & testreport to switch "_RS" type to "real*4"
2234      (if allowed in CPP_EEOPTIONS.h); update default CPP_EEOPTIONS.h and return
2235      to default CPP_EEOPTIONS.h for exp. inverted_barometer & solid-body.cs-32x32x1
2236      (update also the output).
2237    
2238    checkpoint62c (2010/03/02)
2239    o tools/build_options :
2240       move (some) old optfiles from build_options/ to build_options/unsupported/
2241    o model/src and pkg/exf
2242       surface relaxation -- separating data and data.exf options
2243       The point is to ensure that we specify the surface relaxation
2244       either in data or in data.exf (but not half and half) and to
2245       avoid an accidental relaxation to 0 (which happened if a time
2246       scale was specified but the file name was left empty)
2247    o model/src model/inc and pkg/mom_common
2248       ALLOW_3D_VISCAH/ALLOW_3D_VISCA4 => 3D specification of Viscosity
2249       => addition to the viscosity field as computed by others schemes
2250    o tools/build_options:
2251      - rename "_generic_mpi" -> "+mpi_generic" (like other "+mpi" optfile)
2252        but keep the former optfile for few weeks for smooth transition
2253    o pkg/ecco
2254      - allow user defined cost function contributions
2255         CPP: ALLOW_USERCOST_CONTRIBUTION
2256         USAGE: compute contributions in cost_usercost_all.F
2257      - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
2258          the two options are complementary.
2259    o pkg/smooth
2260      - migration from contrib to the main repository
2261    
2262    checkpoint62b (2010/01/26)
2263    o pkg/monitor:
2264      - change back mon_printstats_rl.F & mon_stats_rl.F and add a stop
2265        (in case someone forgot to update customized pieces of code)
2266    o nonHydrostatic:
2267      - add Non-hydrostatic free-surface form (selectNHfreeSurf=1)(not fully tested);
2268      - add a simple 2-D experiment (short_surf_wave) to test it.
2269    o pkg/icefront:
2270       adding the shell of, and the hooks to, a new package that
2271       will model melting and freezing of vertical glacier ice fronts
2272    o momentum:
2273      add diagnostics of momentum tendency from Hydrostatic pressure gradient
2274       (without surf.pressure term: would need a 2nd filling since implicit term).
2275    o add 3 "_d 0"s so that fizhi compiles with xlf on iblade, and replace
2276      two " &end" by " &" (in fizhi-cs-*) because S/R NML_SET_TERMINATOR
2277      cannot deal with the former
2278    o cleaning:
2279      - remove all (except OpenAD) old TLM output from results_ad dirs.
2280      - remove unused S/R (MDSWRITEMETA, DIAGNOSTICS_ADD2LIST, old DFILE IO S/R)
2281      - comment out maskH definition (replaced by maskInC)
2282    o pkg/monitor:
2283      - change mon_printstats_rl.F & mon_stats_rl.F (were similar to mon_writestats_rl
2284        & mon_calc_stats_rl) to be the RL equivalent of mon_printstats_rs & mon_stats_rs.
2285    
2286    checkpoint62a (2010/01/15)
2287    o model/src:
2288      - bottom pressure diagnostic: correct for r* (when nonlinFreeSurf >= 4)
2289    o pkg/diagnostics:
2290      - add optional level number diagnostics (i.e., level number to be define
2291        explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".
2292      - strictly check for valid parser-code(10) ;
2293      - check if adding diag to the list from the right place.
2294    o pkg/longstep:
2295      - change parameters and fix tracer conservation with rstar/nonlinear free surface
2296    o diagnostics:
2297     - in all pkgs, replace remaining calls to old S/R DIAGNOSTICS_ADD2LIST with newer
2298       S/R DIAGNOSTICS_ADDTOLIST ; fix seaice VICE diagnostics.
2299    o pkg/diagnostics:
2300     - Add option for writing vertical integral (sum of selected levels) of an output
2301        field instead of writing output field levels. Activate this option on a per
2302        output-file basis, by setting the 2nd character of fileflag to 'I'.
2303     - Add field-specific information relative to level integral in 3rd postion
2304        of parser diagnostics code (gdiag): " "=cumulate levels, "R"=integrate
2305        vertically (x level-thickness x hFac), "r"=same but without hFac.
2306    o do_the_model_io:
2307      - pass end-of-model-run flag as argument, from forward_step to diagnostics_write:
2308        in case useSIGREG, will write (averaged) diagnostics (if dumpAtLast) before
2309        writing pickups and stopping.
2310    o pkg/diagnostics (for now, only with mdsio):
2311      - write time information to meta file (and modify accordingly rdmds.m) :
2312        time-averaged diagnostics output: write starting and ending time of the
2313        time-averaging interval ; snap-shot diagnostics output remains unchanged;
2314    o pkg/timeave:
2315      - S/R TIMEAVE_NORMALIZ: change size of cumulated-time array (was previously
2316        always Nr), now assumed to be equal to number of levels of averaged field;
2317        only used for DIC_COST monthly mean arrays: this fixes dic_aver_final.F
2318    o pkg/sbo:
2319      - fix ocean bottom pressure global-average & 2-D time-ave output (was
2320        neither initialised nor filled).
2321      - add starting iteration in suffix of global-average output file
2322        (to avoid over-writing the file after a restart)
2323      - use standard MDSIO pkg S/R instead of SBO_WRITEVECTOR (fix byte-swap Pb).
2324    o time-average:
2325      - use simple cumulative-time array (no k index) in all pkgs: {PKG}_timeAve(bi,bj)
2326        (pkgs: aim_v23, bulk_force, dic, gmredi, kpp, land, ocn_compon_interf,
2327         ggl90, my82, opps, pp81, ptracers, sbo, seaice, shelfice, thsice)
2328        this fix DIC_COST cumulative-time array (previously: bi,bj,k)
2329      - fix 1rst call (nIter0) snap-shot output and accumulation (pkg/shelfice)
2330      - fix missing accumulation for pkg/opps.
2331      - cumulate fields only if doing time-ave output ({PKG}_taveFreq > 0)
2332         (pkgs: ptracers, kpp, ocn_compon_interf, ggl90, my82, pp81);
2333      - fix initialisation of time-ave vars and do only full time-step increment
2334        (i.e.: no first & last "half time-step") (pkgs: ggl90, my82, opps, pp81);
2335    o pkg/layers:
2336      - use standard RW pkg S/R to write the output
2337        and remove local write_fld version (which had a problem).
2338      - use simple cumulative-time array (no level index) to fix time-ave S/R calls.
2339      - fix LAYERS_CALC argument list.
2340    o pkg/timeave:
2341      - store cumulative-time in a simple tiled array (drop the level index)
2342      - add new S/R (TIMEAVE_NORMALIZE) which uses simple cumulative-time array.
2343    o pkg/ocn,aim_compon_interf
2344      - changes for multi-threaded coupled run. (tested with ifort-11 on danton)
2345    
2346    checkpoint62  (2009/12/23)
2347    o switch on useOBCSbalance in tutorial_plume_on_slope exp. and update output.
2348        (was not previously tested in any other exp.)
2349    o pkg/monitor:
2350      - clean-up _RL/_RS version: add specific S/R for statistics with mask & volume:
2351        mon_writestats_rl/s,F mon_calc_stats_rl/s.F ; will keep the old one
2352        (mon_printstats_rl/s,F mon_stats_rl/s.F) just for bare statistics.
2353      - use hFac & 2-D mask (instead of 3-D mask + hFac in previous mon_stats_rl.F).
2354      - change del2 calculation.
2355      - use interior masks (instead of maskH, <- to be remove).
2356      - shorter monitor suffix for forcing stats ("forcing" instead of "extforcing").
2357    o mask & obcs:
2358      - define 2-D "interior" masks (i.e., zero beyond OB) at 3 locations (C, W & S).
2359      - move global area computation from ini_masks_etc.F to ini_linear_phisurf.F
2360        (called after packages_init_fixed)
2361    o pkg/obcs:
2362      - move bi,bj loops into obcs_calc, so obcs_prescribe_read is called only once.
2363        Fixes bug in obcs+exf with nSx*nSy.GT.1
2364      - fix multi-tile handling in obcs balance code
2365    o nonHydrostatic:
2366      - Implement AB-3 for non-hydrostatic vertical momentum ;
2367        (change ordering of var. stored in pickup file when using NH)
2368      - move NH code from solve_for_pressure.F to 2 new S/R: PRE_CG3D & POST_CG3D.
2369      - add 2-D field to store Hydrostatic Surface Pressure adjusment from cg3d_x
2370        (in prep. for new NH free surface form).
2371    o pkg/obcs:
2372      add files & OB-variables for wVel (Non-Hydrostatic) with useOBCSprescribe
2373    o model/src:
2374      fix 2-D solver initialisation for deep-atmosphere (p-coord) with topography
2375    
2376    checkpoint61z (2009/12/01)
2377    o nonHydrostatic:
2378      Fix missing vertical flux of vert. momentum near surface (k=1). This fixes
2379        a spurious source of energy in simple baroclinic adjusment test case.
2380      Update all non-hydrostatic exp output.
2381    o model/src (3-d solver):
2382      Change again 3-D solver free-surface RHS term when exactConserv=T:
2383        simpler, consistent with exactConserv, and works with implicDiv2Dflow < 1
2384        (which was not the case with previous formulation).
2385      To recover previous version, just reset "oldFreeSurfTerm" to previous value.
2386      Affects results of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW.
2387    o nonHydrostatic:
2388      - compatible with implicDiv2Dflow < 1 ; + implement implicit factor
2389        for Non-Hydrostatic pressure gradient (similar to implicSurfPress).
2390      - change 3-D solver to work with r* (for now, only with linear free-surf.)
2391      - add few debug diagnostics (cg3d_x, residual)
2392    o model/src:
2393      fix missing EmPmR in 3-D solver RHS (was in cg2d_b but missing in cg3d_b).
2394        update output of exp. global_ocean.cs32x15.viscA4
2395    o update output of exp. global_ocean.cs32x15.icedyn after removing
2396      #define SEAICE_OLD_AND_BAD_DISCRETIZATION from SEAICE_OPTIONS.h
2397    o add entry points for Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
2398    o mnc: add horizontal grid coordinates (XC,YC) and (XG,YG) to netcdf output
2399      for complex grids, for now only to "state", "adstate", "adexf", "adseaice"
2400    o model: add Christopher Wolfe's implemetation of the single reduction cg2d
2401      (d'Azevedo, Eijkhout, and Romine, 1999) with CPP-flag ALLOW_SRCG and
2402      runtime flag useSRCGSolver. Modify verification experiment global_with_exf
2403      to test this code
2404    o pkg/cd_code:
2405      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
2406       C-grid momentum. D-grid velocity used to be stepped forward in time with
2407       Adams-Bashforth only on surface pressure term. Tests show that using AB on
2408       D-grid coriolis term improves stability (as expected from CD-scheme paper).
2409      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
2410      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
2411       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
2412       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
2413      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
2414           global_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
2415    o pkg/obcs:
2416     - fix bug in initialisation (broken since Oct 1rst modification)
2417       for useOBCSprescribe without useEXF.
2418    
2419    checkpoint61y (2009/11/15)
2420    o pkg/seaice
2421     - change (once again) the discretization for the evp solver: rather than
2422       squaring the averages of strain rates, average the squares to give
2423       a better approximation to VP behavior (in simple test); this breaks
2424       verification experiments that use EVP (lab_sea and lab_sea.hb87)
2425        --> update outputs
2426    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
2427      to improve vectorization of adjoint code on TARGET_NEC_SX
2428    o verification/vermix:
2429      - change vermix to a more "classical" 1d column with high vertical
2430        resolution, seasonal heat flux forcing and constant wind forcing
2431        --> update outputs
2432    o pkg/seaice
2433     - fix diagnostics of principal stress components for EVP
2434     - add optional diagnostics of non-linear convergence for LSOR solver
2435     - make maximum zeta a runtime parameter
2436    o model/src (3-d solver):
2437      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
2438       which consisted in removing the Surf. Non-Hydrostatic pressure from the
2439       whole column and adding it to Eta (inspired from Casualli, 1999):
2440       Only affects 3-D solver initial guess and only if using ExactConserv,
2441       but tests did show a degradation of solver convergence. For this reason,
2442       decide to disable this piece of code.
2443       to recover previous version, just set zeroPsNH = exactConserv (line 78).
2444      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
2445    o pkg/ggl90:
2446     - fix previous modif (unfortunatly has not been documented here).
2447    o pkg/seaice/autodiff:
2448     - add CPP flag to include clipping of zeta in EVP code;
2449       although clipping of zeta is not necessary for EVP and not recommended
2450       it was done by default, now clipping is disabled by default
2451     - modify computation and store zetaC/Z in seaice_evp for TAF
2452     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
2453     - change seaice_calc_viscosities/strainrates for better
2454       vectorization after AD by TAF
2455     - rearrange common blocks in SEAICE.h once again for easier dumps of
2456       adjoint output, adjust adcommon.h and g_common.h
2457     - change flux form of default advection scheme for better vectorization
2458       of adjoint code
2459     - modify lab_sea/input.lsr to test the flux form of default advection
2460       scheme
2461    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
2462      transition in checkpoint61r)
2463    
2464    checkpoint61x (2009/10/19)
2465    o adjoint: adding two new verification experiments
2466      * tutorial_global_biogeo: an online dic sensitivity experiment
2467        (work with G. Forget)
2468      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
2469        (an update of the Dutkiewicz et al., 2006 paper)
2470      Both use the same CO2FLUX cost function, but different controls
2471      Gradient checks look good, but some recomp. could still be traightened out
2472      Should add xx_dic control variable to test at some point
2473    o model/src:
2474      add run-time parameters to check and/or mask initial Temp & Salt
2475    o pkg/ptracers:
2476      apply zonal filter (if used) to all passive tracers
2477    
2478    checkpoint61w (2009/10/12)
2479    o adjoint:
2480      * update and finish work on adjoint of dic package (G. Forget)
2481      * start adjoint of offline package
2482      * bug fix for cube-sphere TLM code (active_file_g.F)
2483    o tutorial_global_oce_optim:
2484      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
2485      and add SIZE.h_mpi for MPI testing
2486    o pkg autodiff
2487     - fix bug in autodiff_restore
2488     - make genmake2 remove comments and empty lines from ad_input_code.f in
2489       order to reduce file size (new script file remove_comments_sed)
2490    o allows to specify vertical profile of vertical viscosity (viscArNr)
2491    o pkg autodiff
2492      autodiff_ini_model_io: comment out writing of grid information to netcdf
2493      files, because at this time the grid fields are a bunch of zeros
2494      (this is analogous to ini_mnc_vars.F)
2495    o pkg seaice/autodiff:
2496     left-over from removing the 3-time-level fields:
2497     - small rearrangement of common blocks (SEAICE.h)
2498     - fix field declaration in order to get meaningful output in
2499       adseaice.*.nc (adcommon.h)
2500    o pkg obcs:
2501     - go through NH code only if nonHydrostatic=T
2502     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
2503     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
2504       => Update output of experiment seaice_obcs
2505     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
2506     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
2507     - fix restart for useOBCSprescribe + useEXF
2508    o pkg ctrl
2509     - make obcs as control parameter work also with useSingleCPUio
2510     - replace a few sny and snx by Ny and Nx to be consistent with
2511       ctrl_set_globfld_x/yz.F
2512    o pkg seaice
2513     - re-introduce global field frWtrAtm for the case of
2514       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
2515     - catch the case of an empty filename in seaice_cost_init_fixed.F
2516    o pkg ecco:
2517     - small bug fixes in the_main_loop
2518      . fix order of monitor arguments
2519      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
2520      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
2521        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
2522     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
2523       imbalance diagnostics for wmean_h/sflux = 0
2524     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
2525     - catch the case of empty filenames in ecco_cost_init_fixed.F
2526       and ecco_readparms.F
2527     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
2528       to make this statement meaningfull in ecco_cost_weights.F
2529    o pkg zonal_filt:
2530      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
2531      - when using rStar, filter uVel*hFacW instead of uVel
2532       (tested without topography: fix a Pb of growing instability with NLFS)
2533    o pkg/aim/thsice:
2534     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
2535      (works as SST restoring)
2536    o pkg/thsice:
2537     -add specific parameter for salt restoring in slab mixed-layer
2538       (by default equal to the temperature restoring)
2539    
2540    checkpoint61v (2009/09/21)
2541    o pkg/kpp:
2542     -add double diffusive contributions as a hack, turned off by default
2543      for now, and the code can be excluded with a CPP-flag
2544      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
2545     -add a verification experiments to "vermix" to test this code
2546    o pkg/mom_common:
2547      Move computation of length scales to mom_init_fixed.F (avoid recomputation
2548      at each time-steps*levels).
2549    o pkg/layers:
2550      Created a new package for computing volume fluxes in temperature or
2551      [not yet implemented] density layers, e.g. for calculating residual
2552      overturning circulations.
2553    o pkg/diagnostics:
2554      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
2555    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
2556    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
2557      To avoid mixing type (RS/RL) of input/output array argument,
2558      replace single mixed-type array with a pair from each type (RS/RL).
2559    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
2560      is now implemented for all pkgs (previously only done for the main pickup)
2561    
2562    checkpoint61u (2009/08/25)
2563    o pkg/obcs:
2564      - change OB?eta from _RS to _RL and put them into a separate commen block
2565      - add code to read OB?eta from a file via obcs_prescribe_read: the code
2566        compiles and does not destroy any other experiments, the data is read
2567        properly, but the code is not tested in actual applications
2568    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
2569      create a meaningful unit attribute for the time coordinate variable
2570    o pkg/ebm: add plenty of missing "_d 0" ;
2571       update results of experiment global_ocean_ebm (fwd + adjoint tests)
2572      Notes: several pieces of code only works for (very) specific set up
2573       (domain size, lat range, etc ...); should be documented & stop if one
2574       of those assumptions is not meet.
2575    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
2576       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
2577          and offline_exf_seaice (seaicetd + adjoint).
2578    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
2579       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
2580        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
2581    o few changes to pass when compiling with strick checking of arguments
2582       across S/R (allow to find few bugs in S/R calls).
2583    o pkg/seaice:
2584     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
2585       2d-fields, for slightly better performance
2586    
2587    checkpoint61t (2009/07/22)
2588    o pkg/seaice:
2589     - remove unused variables in seaice_evp
2590     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
2591    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
2592       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
2593       each processor opens a different file (a fix from Matt).
2594    o cg2d:
2595       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
2596       this reduces number of EXCH calls by 2 when using exch2.
2597       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
2598       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
2599    o pkg/thsice:
2600       add code for Near Infra-Red albedo (from Jeff)
2601       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
2602    o ini_model_io:
2603       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
2604       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
2605       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
2606    
2607    checkpoint61s (2009/06/30)
2608    o pkg/exch2 (exch2_rxN_cube*):
2609       remove last BARRIER (no need to synchronise after getting data from shared
2610       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
2611    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
2612      and generate new output (for the 2 tests) using default rotationPeriod.
2613    o pkg/exch2:
2614      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
2615        (was already the case with AUTODIFF_EXCH2 defined)
2616      - add bj in exch2 arrays and S/R.
2617      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
2618        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
2619    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
2620      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
2621        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
2622      - verification experiment natl_box.longstep
2623    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
2624      allow different versions of ifort (8 or 9) and different versions
2625       of mpi (mpich or mpich2) to be used with the same optfile.
2626      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
2627       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
2628    o pkg/seaice:
2629      fix previous modif (3-level field removed) for old-pickup reading
2630    
2631    checkpoint61r (2009/06/25)
2632    o pkg/seaice:
2633     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
2634      1. introduce fields for time step (N-1)
2635      2. do not use levels 2 and 3 anymore (but keep them)
2636      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
2637         includes changes to pkg/thsice/thsice_get_velocity.F,
2638         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
2639         pkg/obcs/obcs_apply_uvice.F.
2640     - completely remove code for leap-frog time stepping for second order
2641       advection
2642     - adjusted adjoint accordingly;
2643       gradient checks have improved by an order of magnitude!
2644    
2645    checkpoint61q (2009/06/22)
2646    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
2647     - the boundary conditions along open boundaries are unclear, because the
2648       associated masks are set to zero and are thus treated as closed when
2649       applying the slip-boundary conditions.
2650     - move initialisation of grid variables from seaice_init_varia to _fixed
2651    o adding doc/diags_changes.txt
2652    o model/src:
2653      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
2654       to avoid "_diags" naming if no relation to pkg/diagnostics.
2655      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
2656       file and only call PLOT_FIELD_XYZ if debugMode=T.
2657      remove few PLOT_FIELD_XY calls outside initialisation.
2658      remove few unnecessary BARRIER.
2659    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
2660      of salt_plume package in Southern Ocean
2661    o pkg/thsice:
2662     - fix hOceMxL in overlap (needed for sea-ice advection);
2663       update output of experiment global_ocean.cs32x15.icedyn.
2664    o pkg/seaice:
2665     - make the (placeholder-)tracer IceAge a little more meaningful
2666      by avoiding ridging of age due to convergent ice flow
2667     - add diagnostics for surface temperature, atmospheric and oceanic
2668       heat flux, and atmospheric and oceanic ice growth
2669    
2670    checkpoint61p (2009/06/10)
2671    o eesupp (global_max & global_sum):
2672     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
2673     - remove starting & endding barrier (no longer needed)
2674    o pkg/mdsio, writelocal:
2675       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
2676       (remove the STOP): uses shared buffer IO to store data from all threads
2677       and then let master-thread write nThreads tiles.
2678    o pkg/mdsio (read/write field):
2679     - tiled IO done in 1 piece (all levels at a time);
2680     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
2681     - multi-threaded: allow to read/write local (non-shared) array
2682       (was already working with singleCpuIO ; now works also without);
2683       => no longer needs barrier call after reading a file (added inside
2684       mds_read/write field).
2685     - move barrier calls outside gather/scatter_2d to mds_read/write_field
2686    o pkg/obcs/exf
2687      - exf_getffieldrec.F: add a few ". _d 0" and
2688                            add code to catch the case fldperiod = 0.  
2689      - obcs_precribe_read.F: change if statements so that they match
2690                              the variable type (_RL)
2691      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
2692        exf_iprec) as part of namelist EXF_NML_01
2693    o pkg/mdsio:
2694      - read/write tiled (local) files: read/write 1-level tile chunk at a time
2695        (instead of segment of length sNx); expected to speed up tiled IO.
2696    o pkg/exch2:
2697      - take buffer copy from/to array out of S/R exch2_send/recv into new
2698        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
2699        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
2700      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
2701      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
2702        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
2703        including Topology header file (and common blocks).
2704      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
2705        remove 2nd exch call in exch2_s3d_rx (no longer needed).
2706      - document S/R arg. list (+ update some comments)
2707    o pkg/seaice:
2708      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
2709        temperature and humidity over sea ice based on climatological values.
2710      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
2711        of LSR (this change is expected to change the results slightly because now
2712        it uses slightly difference moduli from the second last LSR solution, but
2713        that is more consistent with the stress computations; this part of the code
2714        is not tested in the verification experiments)
2715      - fix diagnostics for flux of ice in case of B-grid
2716      - turn strain rates eij and press into global fields within global
2717        common block in SEAICE.h for more straighforward diagnostics
2718      - fix diagnostics for principal stress components, press, zeta, eta
2719        to give something meaning full
2720    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
2721      new output (all 4 tests) using default rotationPeriod.
2722    o pkg KPP:
2723      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
2724      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
2725        and normal grid from 1 to Nr)
2726    o Fix computations of L4rdt in mom_calc_visc.F
2727    o eesupp:
2728      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
2729      should be called before a "stop" if we know that all process are going
2730      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
2731    
2732    checkpoint61o (2009/05/26)
2733    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
2734    o model/src/ini_curvilinear_grid.F:
2735       compute angleSin/CosC when they are not read from a file
2736    o pkg/seaice:
2737       add pseudo time stepping for LSOR
2738    o pkg/exch2:
2739       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
2740    o pkg/seaice:
2741       Adding separate sea ice albedo, drag coefficients, and HO in Southern
2742       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
2743    o SingleCpuIO:
2744       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
2745    o pkg/seaice:
2746       put exchanged variable in (local) common block for MPI+Multi-Threads
2747       to work (necessary with exch1, and for now with exch2 too).
2748    o verification: to get more experiments tested with mpi, mth and mpi+mth,
2749      change tiling of:
2750       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
2751       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
2752      update output of exp:
2753       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
2754       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
2755      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
2756                       (note: output.txt generated on faulks using only 1 tile)
2757    o eesupp & mdsio (SingleCpuIO):
2758     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
2759       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
2760       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
2761     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
2762     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
2763       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
2764    o pkg/exch2:
2765     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
2766       read parameter file "data.exch2" if it exists; otherwise try default regular
2767       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
2768     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
2769       with new code (not to be used, just as a backup solution).
2770     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
2771       in utils/exch2/input.
2772    
2773    checkpoint61n (2009/05/12)
2774    o eesupp & mdsio (SingleCpuIO):
2775      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
2776        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
2777        receive real*4 array (instead of real*8) to read/write 32.bit files.
2778        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
2779         and remove new mapping S/R)
2780    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
2781      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
2782        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
2783        when using exch2. Add S/R to map global io-buffer to global model array.
2784      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
2785    
2786    checkpoint61m (2009/04/29)
2787    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
2788      and add 3 other S/R for other types (R4,R8,RS).
2789      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
2790    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
2791     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
2792     - reduce number of macro definitions (keep only those which are used);
2793       can always call directly the corrresponding S/R if needed.
2794     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
2795       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
2796     Fixed wrong type of arg in:
2797       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
2798       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
2799     To fix: global_sum of var in common block is wrong (multi-threaded) in:
2800       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
2801     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
2802    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
2803      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
2804    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
2805    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
2806      edges are closed (zero depth); might happen with "blank tiles";
2807      for now, disabled if using OBCS.
2808    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
2809      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
2810    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
2811      to reduce length of 1.D array print in STDOUT.
2812    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
2813      + use 48 tiles (16x8): this will allow to test "blank tiles".
2814    o start to test MPI + multi-threaded (change testreport to skip tests
2815      where number of tiles do not match).
2816    o genmake2: add option "-omp" to turn on Open-MP ;
2817      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
2818    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
2819      and keep the original tile numbering. Note: compatible with old
2820      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
2821    
2822    checkpoint61l (2009/04/07)
2823    o Overlaps had been forgotten in calculating ijk keys : fixed
2824    o fix cyrus makedepend for gcc 4.4
2825    o experiment fizhi-cs-aqualev20:
2826      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
2827      and generate new output. Note: new output is much closer to the old
2828      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
2829      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
2830    o pkg/fizhi:
2831     - change to avoid indices going deliberately over array-bounds
2832     - remove unnecessary MPI stuff
2833     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
2834     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
2835       does not go over array-bounds and therefore returns reliable output.
2836     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
2837       this S/R has 4 output arguments, which are used inside "get_alarm";
2838       when it is called with the same variable "ndum" in place of several
2839       output arguments, this produces weird side effect inside "get_alarm"
2840      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
2841       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
2842       address) and produces error.
2843    o tools/gemake2: (March 27-29 2009)
2844      with option "-mpi": link *_mpi files from "MODS" dir (this is what
2845      testreport does).
2846    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
2847    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
2848       update lab_sea.lsr & lab_sea.salt_plume results
2849    o pkg/seaice:
2850      Major overhaul of the LSOR solver: change discretization from original
2851      finite differences to finite volume. The old routine is still in the
2852      file seaice_lsr.F and can be turned on with the CPP-flag
2853      SEAICE_OLD_AND_BAD_DISCRETIZATION
2854      Along with this change, the discretization of the strain rates is changed.
2855      The same flag turns on the old discretization in seaice_calc_strainrates.F
2856      All verification experiments with seaice are affected (except for
2857      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
2858      results by setting the above flag.
2859      Further changes involve changes in defaults:
2860      - ALLOW_FLOODING is defined and turned on by default
2861      - SEAICEadvSnow = .true. is now the default
2862      - SEAICEadvSalt = .true. is now the default
2863      - SEAICEadvAge  = .true. is now the default
2864      - SEAICE_clipVelocities  = .false. is now the default
2865                                         (as per J. Zhang's recommendation)
2866      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
2867        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
2868      - seaice_growth: replace computation of UG by a simple copy from wspeed
2869    
2870    checkpoint61k (2009/03/18)
2871    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
2872      seaice_lsr: fixed a few metric terms,
2873                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
2874                  add more debugging diagnostics
2875      seaice_evp: removed superfluous many metric terms of FV discretization
2876                  of stress divergence
2877                  affects lab_sea, lab_sea.hb87
2878      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
2879                  of stress divergence for non-evp solver
2880                  (this part is not tested anywhere)
2881      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
2882                  they were effectively only half slip
2883                  affects lab_sea.hb87
2884      updated all relevant verification experiments (except lab_sea//output_adm.txt
2885        which was left over, but fails at level 7 & 6)
2886    
2887    checkpoint61j (2009/03/17)
2888    o pkg/seaice: turn a few hard wired parameters into run time parameters
2889    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
2890      time in seconds as promised by the usints in seaice_monitor and exf_monitor
2891    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
2892      that are not cubed-sphere grids
2893    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
2894    o pkg/ctrl:
2895      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
2896    o non-hydrostatic (calc_gw.F):
2897      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
2898      update output of exp. global_ocean.cs32x15.viscA4
2899    o remove backward compatibility for thetaMin,phiMin
2900      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
2901    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
2902      interpolated wind field not only for curvilineargrid=.true., but also
2903      for a rotated grid (rotateGrid=.true.)
2904    o pkg/exf: add capability to bypass interpolation for runoff
2905      by setting yet another CPP-flag
2906    o eesupp/src, B-grid exchange:
2907      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
2908    o autodiff
2909      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
2910      allows to switch to single-prec common blocks;
2911      corresponding switch occurs in tamc.h, integer isbyte
2912      TAF store directivs "byte" and "kind" seem equivalent;
2913      Most tamc.h have been updated correspondingly.
2914    
2915    checkpoint61i (2009/02/13)
2916    o autodiff:
2917      fix autodiff_sore/_restore indices for obcs
2918      (spotted by I. Hoteit, M. Mazloff)
2919    o pkg/autodiff, pkg/ctrl:
2920      Add flag to reduce all tapelev I/O to single-prec.
2921      In data.ctrl set
2922        doSinglePrecTapelev = .TRUE.
2923    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
2924      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
2925    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
2926      real fresh water flux (not yet)
2927    o pkg/mdsio & rw:
2928     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
2929     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
2930    o pkg/flt:
2931     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
2932       init_fixed & ini_varia.
2933     - clean-up & simplify linear interpolation S/R:
2934       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
2935     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
2936     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
2937     - add vert. coordinate & horiz. indices to output files.
2938     - change vertical position in initial condition, from index to depth [m].
2939     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
2940       (easier to get to a curvilinear grid) ; delX,delY no longer used.
2941    o pkg/ggl90: a few modifications:
2942     - fix bottom boundary condition, and interpolation of KappaE
2943       near top and bottom
2944     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
2945     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
2946     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
2947    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
2948      (maintain temporary backward compatibility, until next checkpoint)
2949    
2950    checkpoint61h (2009/01/27)
2951    o pkg/diagnostics with "periodic averaging diagnostics":
2952      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
2953    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
2954    o pkg/obcs: fix loop ranges for balancing code
2955    o pkg/flt:
2956     - improve criteria for finding which tile owns a float.
2957     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
2958    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
2959      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
2960      with ocean biogeo)
2961    o pkg/flt:
2962     - do some cleaning and fix the restart ;
2963     - add output.txt in flt_example/results to get this pkg tested.
2964    o genmake2: add an EXTENDED_SRC option and flag.
2965       for now, cannot be turned on on command line (only through genmake_local)
2966    o pkg/mdsio: read/write vector:
2967     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
2968     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
2969       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
2970     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
2971      (drop to 4 digits matching for grad). But this test does not look very
2972      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
2973    
2974    checkpoint61g (2008/12/29)
2975    o pkg/flt:
2976      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
2977       + make OPTIONS file more standard.
2978      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
2979      - fix _BYTESWAPIO CPP-Flag
2980      - standard reading of file-parameter "data.flt"
2981      - fix argument list of S/R FLT_RESTART
2982      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
2983    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
2984    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
2985      a still unfixed compiler/optimization bug
2986    
2987    checkpoint61f (2008/11/21)
2988    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
2989      update results of global_ocean.cs32x15.icedyn test.
2990    o move getcon.F from model/src to pkg/fizhi.
2991    o pkg/exf: add parameter for extrapolation of temp up to the surface
2992       and option to prevent negative evap (in bulk_largeyeager04 only).
2993    o Prather Advection scheme: fix tracer conservation for divergent flow
2994      (e.g., when using NonLin Free-Surface).
2995    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
2996    o gmredi (Visbeck-variable-K):
2997     - add more parameters to Visbeck-variable-K.
2998     - use a 5 points average for dSigmaR in Visbeck-K calculation
2999       (more "homogenous": same stencil and same weights as in dSigmaH)
3000     - update output of ideal_2D_oce experiment.
3001    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
3002      (#undef REAL4_IS_SLOW)
3003     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
3004       coordinate variable
3005     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
3006       (surface forcing fields), removes some of the functionality
3007     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
3008     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
3009       probably not all: copy _RS surface flux fields to RL field before
3010       calling DIAGNOSTICS_FILL
3011     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
3012       real*4 (CALL EXCH_*_RS) versions.
3013     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
3014       (generate new output).
3015    
3016    checkpoint61e (2008/10/23)
3017    o gmredi (Visbeck-variable-K):
3018      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
3019      - change computation of Visbeck-K where Slope > Smax :        
3020        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
3021        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
3022    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
3023      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
3024    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
3025    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
3026      does not become too large (to avoid precision problems in implicit-diffusion
3027      solver); update ideal_2D_oce output.
3028    o pkg ggl90:
3029      - in ggl90_cal.F: compute only one set of visc/diff, used to
3030        step forward TKE/T/S/momentum
3031      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
3032        have Prandlt =1)
3033    o gmredi (fm07):
3034      - add lower limit on Transition layer thickness + lower limit on 1/lambda
3035      - allow to set few more params from data.gmredi
3036    o pkg ggl90:
3037          - add missing sqrt(2) factor in computation of mixing length
3038            scale in ggl90_calc.F
3039            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
3040    
3041    checkpoint61d (2008/09/25)
3042    o adjoint modifs
3043      - adapt to new field rhoInSitu
3044      - allow to revert from StoreDynVars2D, StoreDynVars3D
3045        to individual fields
3046        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
3047    o store 3-D (in-situ) density in commom block (DYNVARS.h)
3048     - save 1 rho computation.
3049     - no longer modify T & S inland when using down_slope pkg.
3050    o gad_som : allow to switch to SOM advection for T & S without corresponding
3051      pickup files (using new S/R: MDS_CHECK4FILE).
3052    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
3053      (for useSingleCpuIO to work in multi-threaded)
3054    o pkg/shelfice:
3055     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
3056       with SHELFICEtopoFile in data.shelfice
3057     - move code for reading ice shelf topography and modifying hFacC into separate
3058       subroutines of the shelfice package
3059     - separate initialisation of "fixed" and "variable" variables
3060     - kTopC is not (yet) replaced by kSurfC, although this is possible
3061    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
3062    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
3063      and rename:
3064      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
3065      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
3066    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
3067    
3068    checkpoint61c (2008/08/30)
3069    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
3070      to add mass source/sink of fluid in the interior (3-D generalisation
3071      of oceanic real-fresh water flux).
3072    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
3073    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
3074    o new pkg: down_slope
3075      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
3076      - presently, modify T & S inland (dwnslp_calc_rho.F).
3077        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
3078      - implementation for ocean in P-coords not tested.
3079      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
3080    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
3081      (to facilitate conversion of oceanic pkg to p-coordinate).
3082    o change FIND_RHO to FIND_RHO_2D :
3083      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
3084    o new pkg: cheapaml
3085    
3086    checkpoint61b (2008/08/05)
3087    o exch2:
3088      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
3089      - no longer depend on the order sequence (N,S,E,W).
3090      - 3rd exchange no longer needed (tested with 24 tiles).
3091      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
3092      - exch_UV_A-grid readily available (but not yet tested).
3093      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
3094      (both are no longer needed) in exch_uv: no effect in forward run; but
3095       get truncation error differences with adjoint exch.
3096    o exch2:
3097     - change index-bounds storage (moved from target to local tile,
3098       more intuitive this way) ; rename/remove some variables.
3099     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
3100    
3101    checkpoint61a (2008/07/29)
3102    o exch2/matlab-topology-generator:
3103      fix bug in index bounds for N-S internal exchange (hard to tell if this
3104      had any effect on the solution).
3105    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
3106      is exceeded
3107    o testreport: modify syntax of awk, so that it works also with
3108      awk, and not only with nawk and gawk
3109    
3110    checkpoint61 (2008/06/24)
3111    o autodiff
3112      Change default for TAF usage by removing argument '-nonew_arg'
3113      This changes TAF subroutine argument list (ordering of active var.)
3114      Omission of this flag leads to incompatibility w.r.t. TAMC
3115      To restore TAMC-compatibility, need following modifs:
3116      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
3117      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
3118      Tested TAF version is 1.9.22
3119      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
3120    
3121    checkpoint60 (2008/06/19)
3122    --->>> This is the last checkpoint for which generating the adjoint
3123    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
3124    --->>> by default.
3125    --->>> Future checkpoints will ommit this flag by default.
3126    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
3127    o pkg/grdchk: Add gradient check to etan0 perturbations.
3128    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
3129    o pkg/autodiff: more flexibility in zeroadj.
3130      model/src: modifying do_oceanic_phys.F accordingly.
3131    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
3132    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
3133      special setup of gmredi for which the adjoint is stable
3134      enough for parameter optimization.
3135    o bridging the gap between eddy stress and GM.
3136      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
3137          along with a change in CPP option (now ALLOW_EDDYPSI).
3138      -> when using GM w/ GM_AdvForm:
3139          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
3140          is applied either in the tracer Eq. or in momentum Eq.
3141          depending on data.gmredi (intro. GM_InMomAsStress).
3142      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
3143      The key modifications are in model/src/taueddy_external_forcing.F
3144      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
3145    
3146    checkpoint59r (2008/05/29)
3147    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
3148      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
3149      fix option to read coriolis(@ cell-corner) from files with CS-grid.
3150    o pkg/mnc: add some attributes to standard 1D-coordinate variables
3151    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
3152      mass points, when using mnc for output
3153      - add runtime parameter (missing_value, missing_value_int) to override
3154        default (which is the value of getcon('UNDEF'))
3155    o pkg/mnc: prepare mnc for the actual use of missing values with the
3156      diagnostics package: small fix in mnc_cw_readwrite.template and more
3157      initialisation of never used fields
3158      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
3159      versions
3160    o pkg/thsice/thsice_ini_vars.F added default initial values so that
3161      thermodynamics sea ice solver does not blow up when some initial fields
3162      are missing.
3163    o move from external_forcing_surf.F to ini_forcing.F
3164      the p-coord. hack consisting in using pLoad to set phi0surf ;
3165      update output of tutorial_global_oce_in_p (affected @ truncation level).
3166    o Freshen up a bit hs94.1x64x5, notably:
3167      remove rotationPeriod and tRef=5*0. (adjoint only), and add
3168      exactConserv=.TRUE.
3169    o pkg/generic_advdiff:
3170      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
3171      applies to files where Temperature & Salinity 2nd Order moments are used.
3172    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
3173      this uses a dynamically allocated internal state data structure
3174      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
3175      and requires a fortran 90 compiler
3176    
3177    checkpoint59q (2008/05/06)
3178    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
3179       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
3180    o Refresh tutorial_global_oce_biogeo, notably:
3181      - change bathymetry (put back seamounts in ACC, use hFacs)
3182      - change EOS (POLY3 --> JMD95Z)
3183      - use Bryan-Lewis vertical diffusivity
3184      - use multidimensional advection
3185      - remove old virtual virtual in dic pkg, now done through ptracer pkg
3186      - change a couple of parameters in dic pkg
3187    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
3188    o pkg/obcs: change default to OBCSfixTopo = .true.,
3189      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
3190      - replace "debugMode" with "debugLevel .GE. debLevB"
3191    o implementation of TAF directives for gchem,cfc,dic
3192    o remove "exp5" (replaced by tutorial_deep_convection).
3193    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
3194      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
3195      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
3196      --> changes results in exp4, seaice_obcs
3197    o tutorial_deep_convection :
3198      update the set-up and increase resolution and domain size ; start
3199      from pseudo initial conditions = output at t=120mn in order to see
3200      something happening when running testreport.
3201    o pkg/seaice: add os7mp as an advection scheme
3202                  add check for advection schemes
3203                  add a flag for restoring T and S underneath sea ice
3204    o pkg/my82: add netcdf-support and diagnostics
3205    o thsice pkg:
3206      - Now hsMax limits snow height by turning it into ice following
3207        flooding scheme (and now conserving energy)
3208      - Slight rewriting of the formula in thsice_calc_thick.F
3209      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
3210      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
3211    
3212    checkpoint59p (2008/04/10)
3213    o gchem / dic / cfc :
3214      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
3215      - add new parameter files: "data.dic" & "data.cfc" ;
3216      - various re-arrangement in initialisation & header file ;
3217      - fix tutorial_global_oce_biogeo for multi-threaded test.
3218    o pkg/dic: test for "pickup_dic" file when restarting ;
3219      if no pickup-file, can restart with a re-initialised pH (same as it did
3220      before) providing pickupStrictlyMatch is set to False.
3221    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
3222      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
3223    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
3224      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
3225    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
3226     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
3227       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
3228    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
3229       scheme to use for vorticty-term ;
3230     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
3231       (with default selectVortScheme, return to original discretisation)
3232     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
3233    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
3234    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
3235      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
3236      also fix diagnostics VISCAHW & VISCA4W.
3237    
3238    checkpoint59o (2008/03/07)
3239    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
3240    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
3241      move a few statemens out the main loop into separate loops
3242    o pkg/shelfice:
3243      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
3244        (kg/m^2/s), does not break tests, because in verification/isomip,
3245        rhoConstFresh=rhoConst (by accident)
3246      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
3247      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
3248        new file model/src/seawater.F, so that they are available for all pkgs.
3249      - convert potential temperature into in-situ temperature. This changes the
3250        isomip tests => update tests
3251    o add a flag writePickupAtEnd (default=true) to be able to suppress
3252      writing a pickup at the last timestep
3253    o tools/mpack-1.6 :
3254      - disable automake (not working) and autoconf (not needed).
3255      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
3256        also cleaner with much less compilation warnings.
3257    o pkg/profiles:
3258      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
3259      (for "less than 32 characters name" compiler requirement)
3260    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
3261      conditions that have a different sampling frequency than S/T/U/V obcs
3262    o pkg/diagnostics (stats-diags):
3263      - fix global Min/Max in case 1 processor get only empty tiles
3264    o genmake2: replace (4 times)
3265         make genmake_tc_1.o >> genmake_warnings 2>&1
3266      with
3267         COMM="$CC $CFLAGS -c genmake_tc_1.c"
3268         echo $COMM >> genmake_warnings
3269         $COMM >> genmake_warnings 2>&1
3270      to make genmake2 always see the value of CC as specified in the optfile.
3271    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
3272      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
3273      - modify verification advect_cs test to test SOM-advection on CS-grid.
3274    o pkg/ctrl:
3275      - Rewrite of ctrl_map_ini_ecco.F,
3276        introducing a generic routine (ctrl_map_ini_gen.F).
3277      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
3278    
3279    checkpoint59n (2008/02/09)
3280    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
3281      number in dedicate array "hdiag":
3282      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
3283        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
3284      - many small changes (integer format) for large number of diagnostics
3285      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
3286        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
3287    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
3288      usingSphericalGrid, this allows to define the rotated grid coordinates
3289      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
3290      geographical coordinates according to the inverse of the rotation defined
3291      by the Euler angles, so that Coriolis parameter and online-interpolation by
3292      exf works with the geographical coordinates on XC/YC/XG/YG.
3293      Naturally, this feature does not work with all packages, so some
3294      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
3295      profiles), because there the coordinates are assumed to be regular
3296      spherical grid coordinates.
3297    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
3298      - introduce isopycnal diffusion coefficient control.
3299    o tools/adjoint_options:
3300      - additional control vector components.
3301    o pkg/mnc: have mnc create marginally meaning full coordinate variables
3302      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
3303    o pkg/mypackage:
3304      - add example of read/write pickup for state-var ;
3305      - add entry points to the main code for state-vars diags & write-pickup.
3306    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
3307      transitions for useExfYearlyFields
3308      - add new subroutine that determines the file to read from for
3309        use*YearlyFields = .TRUE. and .FALSE.
3310      - add a verification experiment to global_with_exf that tests
3311        useExfYearlyFields with USE_EXF_INTERPOLATION defined
3312    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
3313      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
3314      subroutines (which could be generated from a template, because they are
3315      almost identical), for now they are included in obcs_prescribe_read.F for
3316      simplicity
3317    o pkg/exf:
3318      - add a little more diagnostic to exf_interp_read (in analogy to
3319        mds_read_field, can be turned off with debugLevel < debugLevA=1)
3320      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
3321        ugly but fast by unrolling short inner loops, inserting a unroll=8
3322        directive in routine lagran, and splitting a loop and making do while the
3323        outermost loop (the latter requires the intoduction of index arrays)
3324    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
3325    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
3326      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
3327    o verification/seaice_obcs: updated for restart test and latest options
3328    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
3329      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
3330      for now this is only available for the C-grid code and also within
3331      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
3332    
3333    checkpoint59m (2008/01/14)
3334    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
3335      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
3336    o gad_som : fix flux output (& diagnostics) to have same units as other  
3337      advection scheme fluxes (was previously multiplied by deltaT).  
3338    o added verification/seaice_obcs both to test seaice open boundaries
3339      and to provide an example matlab scrpt for generating them
3340    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
3341    o pkg/salt_plume: clean up salt_plume_frac.F to
3342      remove redundancy in PlumeMethod 1 and 4
3343    o pkg/kpp: added saltplume diagnostics
3344    o pkg/obcs and pkg/seaice:
3345      - do not set uice and vice to zero when OB*icefile are unspecified
3346      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
3347      - moved seaice tracer obcs after call to seaice_growth
3348    o pkg/salt_plume: added various options for salt plume depth
3349      criterion and for vertical distribution of the salt
3350    
3351    checkpoint59l (2007/12/18)
3352    o pkg/ptracers: new version of ptracers pickup:
3353      read meta file and write only fields which are needed to restart.
3354      ( same logic as main pickup file ; also using pickupStrictlyMatch )
3355    o pkg/seaice:
3356      - add timescale for melting due to warm mixed layer as a means of
3357        setting SEAICE_availHeatFrac more conveniently
3358      - add a CPP-flag/runtime parameter check for flooding algorithm
3359      - reformulated availHeat in seaice_growth.F to be independent of AREA
3360    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
3361      unit changes
3362    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
3363    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
3364      SX vector computer.
3365    o pkg/seaice:
3366      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
3367        seaice forcing fields can now be read only through pkg/exf
3368      - removed some unused halos
3369    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
3370    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
3371      or U/VICE from U/VWIND before computing U/VSTRESS
3372    
3373    checkpoint59k (2007/11/30)
3374    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
3375      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
3376    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
3377      all experiments pass when compile with un-initialised var. checking option.
3378    o added pkg/salt_plume
3379    o script to test restart (for now, in MITgcm_contrib/jmc_script)
3380    o pkg/seaice: new read/write pickup version.
3381      read meta file and write only fields which are needed to restart.
3382      ( same logic as main pickup file ; also using pickupStrictlyMatch )
3383    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
3384    o lab_sea.hb87: modify the domain & update output.hb87.txt :
3385      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
3386      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
3387      process. Fixed here by closing the domain at the Northern boundary.
3388    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
3389    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
3390      a set of consecutive levels in/from a 3-D array.
3391    o pkg/ptracers:
3392      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
3393      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
3394    
3395    checkpoint59j (2007/11/09)
3396    o in pkgs: dic, obcs, offline, rbcs:
3397      standard way to compute coeff. for time interpolation between 2 time reccords
3398      which retains full precision (& make results less dependent on compiler).
3399      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
3400    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
3401      packages instead of reading ice cover and wind speed separately
3402    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
3403     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
3404      to allow to compile customized code before the update)
3405    o cleaning-up:
3406      - fix CPP instruction syntax in pkg/obcs
3407      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
3408        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
3409      - fix some threads issue in IO parts.
3410    o pkg/dic:
3411      - add tons of "_d 0" (--> much better testreports !)
3412       and then update outputs of tutorial_global_oce_biogeo
3413    o pkg/mom_fluxform:
3414      add a special version of momentum advection intended to conserve momentum
3415      next to a bathymetry step or a coastline edge. (default = off = #undef)
3416    o new read/write pickup version:
3417      - for now, only implemented for main (mdsio) pickup file.
3418      - write out only what is needed to restart; merge pickup_nh , pickup_ph
3419        and main pickup together.
3420      - read meta file; read only what is needed to restart; stop if a field
3421        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
3422        if it make sense (even if the restart is not perfect).
3423      - if no meta file, assume that pickup to read corresponds exactly to
3424        a pickup that would currently be written.
3425      - read pickup written in the old format (until checkpoint59i) if it
3426        recognizes an old meta file (no field-list).
3427      - add a meta file in exp. which starts from a pickup: 2 cases:
3428        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
3429         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
3430        b) a meta file describing the content of the associated pickup file
3431         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
3432    o pkg/mdsio & pkg/rw:
3433      - new routine to read a meta file ; new set of routine to read
3434        Multiple-fields file (with meta file).
3435    o added open boundary conditions capability for seaice
3436        HSNOW, HSALT, UICE, and VICE
3437    
3438    checkpoint59i (2007/10/21)
3439    o adjoint:
3440      * fix multiDimAdvection adjoint
3441        (partial recomputation problem by TAF for fVerT(:,:,kDown)
3442        and comlev1 size definition (maxpass vs. max. number of tracers)
3443      * verification/global_ocean.90x45x15 adjoint now tests
3444        NLFS and multiDimAdvection using DST3 (=30)
3445      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
3446    o pkg/kpp: add "_d 0" to real constant (if missing);
3447      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
3448      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
3449    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
3450      for internal parameters related to restart process (formerly from PARAMS.h)
3451      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
3452    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
3453      as argument. (only atm2d & obcs write_pickup have not yet been updated)
3454    o pkg/monitor:
3455      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
3456      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
3457      - account for deep Atmosphere factor and density factor (anelastic)
3458    o added open boundary conditions capability for seaice HEFF and AREA
3459    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
3460      thermodynamics
3461      - requires a little reorganization, which affects the testreport results
3462        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
3463        so that now the conservative form is tested
3464      - add a few comments
3465    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
3466    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
3467    o add new diagnostics to seaice: advective, diffusive fluxes (only for
3468      multidim-advection, for scheme 2 they are not filled) and transports,
3469      thermodynamic growth rates
3470    o change units of EmPmR (inside the code, + within coupling interface)
3471      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
3472      Affects results @ truncation level (cg2d match) and update output of
3473       experiments: lab_sea(6), global_ocean.90x40x15(10),
3474      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
3475      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
3476      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
3477      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
3478    
3479    checkpoint59h (2007/09/29)
3480    o pkg/exf:
3481      - improve vectorization by moving if-statement out of loops in
3482        exf_mapfields, exf_radiation
3483      - exf_bulkformulae.F: introduce 2D fields and vectorize code
3484    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
3485    o testreport:
3486      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
3487        monitor & update offline_exf_seaice exp. output.
3488      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
3489    o pkg/seaice:
3490      - bug fix in the evp solver: boundary conditions were affected be
3491        masking of zMax/zMin (changes results)
3492      - minor bug fix in boundary conditions in seaice_calc_strainrates
3493        (changes results for no_slip)
3494      - seaice_lsr.F: make interpolation of eta dependent on boundaries
3495      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
3496      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
3497        stress formulation and no-slip boundary conditions
3498    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
3499      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
3500    o pkg/seaice: a first HSALT time stepping equation has been checked in
3501    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
3502      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
3503      without requiring DO-IF statements
3504    o pkg/thsice:
3505      use continuous power-law function for partition of energy between lateral
3506      melting/freezing and thinning/thickening ; old code using step function
3507      still available with #undef THSICE_FRACEN_POWERLAW
3508      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
3509    o testreport: change AD testing : check against results/output_adm.txt
3510      using same scripts as for forward test.
3511    
3512    checkpoint59g (2007/09/17)
3513    o adjoint testing: in preparation for changing testreport:
3514      - output format: cost and grad written on separated lines
3515      - ad output results in directory "results" (instead of "results_ad")
3516    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
3517    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
3518    o pkg/ecco: allow user defined cost function contributions
3519    o testreport:
3520      Allow to choose (per experiment) the list of tested output variables
3521       and the main variable (used to issue a pass/FAIL ) ;
3522      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
3523      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
3524      Also modify printing of summary:
3525       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
3526       b) echo the list of tested variables in the individual summary.txt of
3527          each experiment.
3528    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
3529      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
3530      (but still depend on the tile decompostion of the domain).
3531    o pkg/seaice: change a discretization detail to make the B-grid code
3532      "more symmetric". This change is likely to remove all "ridges/leads" that
3533      where quasi-aligned with the grid in B-grid solutions. It may also be
3534      the solution to the stress coupling issues with the B-grid.
3535    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
3536      remove .cvsignore from input dir. (since testreport no longer run here).
3537    o pkg/thsice:
3538     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
3539     - fix reshaping of sea-ice just after advection:
3540       melt all the ice only if ice-volume is too small.
3541     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
3542       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
3543     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
3544    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
3545      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
3546    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
3547      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
3548      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
3549      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
3550      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
3551      -> update output.txt
3552    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
3553     this affects truncation error: -> update output.txt of exp:
3554      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
3555      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
3556    
3557    checkpoint59f (2007/08/21)
3558    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
3559    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
3560      a bounded range (in forward mode)
3561    o pkg/ecco, ctrl, autodiff and mom_common:
3562     internal parameter controls, completements of implementations
3563    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
3564    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
3565      (not seem any difference in testing results).
3566    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
3567       at face corners.
3568    o pkg/generic_advdiff:
3569     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
3570      loop range indices for computing vertical advection tendency
3571      and do the calculation in the interior only (no overlap) ;
3572      for now, only implemented for SOM advection (to save CPU time).
3573     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
3574    o exch2 adjoint
3575      First set of changes:
3576      - add exch2 hand-written adjoint templates
3577      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
3578        This will require cleanup in pkg/autodiff/*.F
3579        (changed routines currently kept separate in verif. code/)
3580      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
3581        that used to hide exch2 or cubed-sphere specific code
3582        (commented via 'cph-exch2')
3583    o pkg/seaice
3584      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
3585    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
3586       output of global_ocean.cs32x15.thsice .
3587    
3588    checkpoint59e (2007/07/26)
3589    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
3590      for B-grid vector (not yet tested) and C-grid vector (<- only used
3591      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
3592    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
3593      (#ifdef ALLOW_SALT_PLUME)
3594    o gather_2d/scatter_2d: removed halo regions
3595    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
3596      scheme and the corresponding test case (under front_relax dir). For now,
3597      only available with Skew-flux form and not yet tested in realistic set-up.
3598      adjoint: store directives updated, but gradient checks deteriorated,
3599      so maybe GM/Redi adjoint is now broken.
3600    o seaice adjoint
3601      * add AREA, HEFF, HSNOW as control variable
3602        (should not change lab_sea results)
3603      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
3604    o pkg/seaice:
3605      * added computation of saltFlux in seaice_growth;
3606        For time being, sea ice salinity is assumed constant
3607        contribution of snow flooding to freshening of sea ice is neglected.
3608        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
3609        defaults to 0.0 in order to maintain backward compatibility.
3610        Typical values for SEAICE_salinity are 4 to 10 g/kg.
3611      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
3612      * added SEAICE_availHeatFrac, which specifies fraction of surface level
3613        heat content used to melt or grow ice
3614      * commented out cap of HICE: it helps keep ice thinner
3615      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
3616      * applied OBCS T/S mask to HEFFM sea ice mask
3617    
3618    checkpoint59d (2007/06/21)
3619    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
3620     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
3621     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
3622    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
3623     and change default value of parameter "GM_Small_Number";
3624     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
3625       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
3626       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
3627    o pkg/ecco: cost function when applying pkg/smooth to controls
3628    o pkg/ctrl: add forcingPrecond run time parameter
3629    o pkg/seaice:
3630     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
3631     - fix bug in metric terms of u-equation in LSR solver (implicit part),
3632       changes verification/lab_sea
3633     - rearrange implicit part of u-equation in LSR solver to make it easier to
3634       read, understand, and debug. This causes changes at the truncation level.
3635     - fix (serious) bug in the boundary conditions (sign error in the implicit
3636       part) of the LSR solver. Changes all LSR results.
3637     - fixed problem with HSNOW initialization to avoid thick snow when AREA
3638       is initilized with small values - does not change lab_sea results.
3639     - added HsnowFile initialization capability
3640    o pkg/smooth: addition to model/src and pkg/ctrl so allow
3641     initialization of pkg/smooth and application to control vector
3642    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
3643    o dependencies: pkg/profiles requires pkg/cal
3644    o pkg/profiles:
3645     - added option ALLOW_PROFILES_GENERICGRID
3646         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
3647         that interpolation information (grid points and coefficients) is provided
3648         within the netcdf input files.
3649         -> sample matlab scripts can be found in MITgcm_contrib/gael
3650         that allow you to prepare netcdf input files.
3651     - also modified: cleaner include statements, cleaner error print statements,
3652       cleaner stops when error, and more tests of the netcdf input files consistency.
3653    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
3654    o pkg/seaice:
3655     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
3656       requires a new routine: seaice_diagnostics_fill.F
3657     - make sure that seaice does not move if not forced (pressure replacement
3658       method, Hibler and Ip, 1995), changes results
3659     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
3660     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
3661       It is turned off by default (=-1.), because it changes the results.
3662     - make it possible to read AREA from a file, too.
3663    
3664    checkpoint59c (2007/06/04)
3665    o add S/R and diagnostics for oceanic mixed-layer depth
3666    o move GMRedi call after all vertical mixing schemes (including KPP)
3667    o pkg/thsice:
3668     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
3669      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
3670    o pkg/obcs:
3671     - bug fix for balance code
3672    o pkg/seaice:
3673      - allow values of SEAICE_elasticParm > 1
3674      - add new parameter SEAICE_evpTauRelax as an alternative
3675        to SEAICE_elasticParm
3676      - make lsr boundary conditions free slip (by default), changes result
3677      - add code for no slip boundary conditions for lsr
3678      - set minimum of zeta to zero (and not 4e8) (changes results)
3679      - add a cap on AREA after advecting AREA if seaice_growth is not called
3680    o change calculation of Visbeck K:
3681      - no longer depend on tapering scheme; instead, compute slope (limited
3682        by GM_maxSlope). this is equivalent to what was comuted before with
3683        clipping or linear tappering.
3684      - fix vertical averaging (wrong by 1/2 level)
3685      - leave the old version (but will not be maintained) within
3686        #ifdef OLD_VISBECK_CALC / #endif
3687      - update output of exp. ideal_2D_oce
3688    o change error catch in calc_r_star to improve vectorization
3689    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
3690      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
3691    o adjoint:
3692      Re-organized adjoint checkpointing according to Matt Mazloff
3693      (but with modifs/completions/cleanups)
3694      Storing is now bundled into large arrays to optimized I/O
3695      (and second step in cleanup of the_main_loop)
3696    
3697    checkpoint59b (2007/05/16)
3698    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
3699      - export/import (between ocean & coupler) fields needed for ocean DIC.
3700    o pkg/seaice:
3701      - get rid of three more exchanges seaice_calc_viscosities (required
3702        different loop boundaries in seaice_lsr and seaice_ocean_stress)
3703      - bug fix in seaice_ocean_stress (update of lab_sea required)
3704      - reduce loop boundaries to necessary minimum also in seaice_evp
3705      - go back to the old way of computing deltaC/Z as the adjoint likes that
3706        better
3707    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
3708      passive tracer to an Age Tracer) + update output.txt
3709    o pkg/exf:
3710      - implement A-grid / C-grid selection for wind-stress input files.
3711      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
3712      for now, in exf_bulk_largeyeager04.F only :
3713      - change implementation for case where windspeed + 2. components wind-stress
3714        are read-in. AND use rhoConstFresh to convert evap.
3715    o pkg/seaice:
3716      - use correct EXCH_UV for wind-forcing (on A-grid).
3717      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
3718        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
3719    o pkg/exf:
3720      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
3721      EXF_INTERPOLATION:
3722      - merge global_with_exf/code version of exf_interp_read.F
3723        to the main code ;
3724      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
3725        reading the file ; Important: This options needs to be defined to recover
3726        previous code.
3727        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
3728      - no longer loose real*8 precision along the way when using exf_iprec=64.
3729    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
3730      - change discretisation of evp-solver in order to avoid another exchange
3731        (changes lab_sea) and clean up a little
3732      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
3733        help the adjoint (this also changes the results slightly)
3734      - add a few "_d 0" where they had been missing in seaice_evp.F
3735      - cleaning up: remove unused seaice_calc_rhs.F
3736    o pkg/exf: some cleaning-up:
3737      - change various "constants" into runtime parameters
3738      - cleaned-up Large&Yeager04 routine which should eventually
3739        replace exf_bulkformulae.F (changed names of S/R and CPP)
3740        and merged various ALLOW_ATM_WIND options
3741     only used with thsice pkg (in thsice_get_exf.F):
3742      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
3743        which are used when useStabilityFct_overIce=TRUE (= the default)
3744      - change default values of ice & snow emissivity and scale downward LW
3745        by ice & snow emissivity.
3746    o pkg/thsice:
3747     fix few little problems, in thsice_calc_thickn.F:
3748      - growth vertically (and not laterally) if iceFrac == iceMaskMax
3749      - melt only laterally if hIce < hThinIce (as the comments say)
3750      and in thsice_extend.F:
3751      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
3752      - start to form ice as soon as the minimum ice-volume is reachable.
3753     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
3754      and cpl_aim+ocn
3755    o pkg/kpp
3756     - move computation of surface related input fields to KPP into a new
3757       subroutine kpp_forcing_surf.F
3758     - remove wrong (within bi,bj loops) EXCH calls.
3759     - little cleaning (add argument myThid in last position, cvs header ...)
3760     - for now, fix conservation problem by exchanging KPPviscAz (may not
3761       be the best fix)
3762    o pkg/seaice
3763     - check for inconsistent evp parameter/cpp-flag combination
3764     - remove leftover errIO flat for obsolete name list error handling
3765    o OpenAD
3766     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
3767    
3768    checkpoint59a (2007/05/01)
3769    o pkg/seaice: some parameter clarifications and a little bit of clean up
3770    o pkg/thsice: rename run-time parameters:
3771       himin       -> hIceMin
3772       himin0      -> hThinIce
3773       hihig       -> hThickIce
3774       i0          -> i0swFrac
3775       transCoef   -> bMeltCoef
3776       frac_energy -> fracMelting
3777      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
3778       with default values (for now) that do not change the results.
3779      remove old version of thsice vars advection in pkg/seaice.
3780    o in FFIELDS.h:
3781      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
3782      - make pLoad & sIceLoad always available (but still only used if
3783         ATMOSPHERIC_LOADING is #define).
3784    o pkg/kpp: replaced _KPP_RL with _RL
3785    o bug fixes for vertical diffusivity computations when both KPP and
3786        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
3787        are no longer updating the vertical diffusivity array
3788        (passed as argument) but are (re-) setting those arrays.
3789    o pkg/seaice: fix bug in evp solver, while doing that
3790      - change (improve?) discretization of stress computations for both
3791        cgrid-lsr and evp solver
3792      - add a new routine to compute strain rates
3793      - the above changes lab_sea results
3794      - add no slip conditions for evp solver (off by default), lsr-version
3795        may follow
3796      - fix exchange for shear at Z-points (does not change lab_sea)
3797      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
3798        (to force the user to pick a time step since there is not "safe" way
3799        of choosing it)
3800      - add principal stress diagnostics
3801      - rearrange fields for evp a little to avoid having to call a: too many
3802        exchanges and b: exchanges for stress trensor components which we do
3803        not have.
3804      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
3805        of evp, complete rewrite for lsr case (latter is does not yet work
3806        in all cases)
3807    o pkg/kpp: add code to have mixing in shelf ice caverns
3808      - add myThid to all kpp routines (long overdue)
3809    
3810    checkpoint59 (2007/04/19)
3811    o pkg/exf:
3812      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
3813        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
3814      - move exf header files from lower_case.h to UPPER_CASE.h ;
3815        add missing cvs Header & Name
3816      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
3817      - add namelist param. selectStressGridPosition, exf_monFreq
3818      - retire many _CLIM routines, and remove data.exf_clim
3819        + params moved to data.exf
3820        + climsst, climsss now handled by exf_set_gen, i.e.
3821          climss?period=0 refers to constant field,
3822          climss?period=-12 to monthly forcing
3823      - split up namelists in data.exf
3824    o pkg/seaice:
3825      - remove seaice_exch and seaice_exch_uv
3826      - remove superfluous exchange of theta
3827      - add myThid to seaice_budget_ocean/ice
3828      - add new interface for atmospheric wind forcing (C-grid only)
3829        + new routine
3830        + two new field (taux, tauy for stress over ice)
3831        + removed one global field (DAIRN) for C-grid case only
3832    o pkg/thsise
3833      - 2nd set of modifs for thsice adjoint in conjunction with exf
3834    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
3835    
3836    checkpoint58y_post (2007/04/15)
3837    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
3838      vertical diffusivity, similar to that in MOM4; turned on using
3839      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
3840      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
3841    o Added capability for 3D specification of background vertical diffusion
3842      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
3843      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
3844      "data" file that contains the 3D vertical diffusivity coefficients.
3845    o ice dynamics (pkg/seaice) with thsice thermodynamics:
3846      - add code within pkg thsice to advect & diffuse sea-ice fields
3847      similar to (and will replace) what has been added in  seaice_advdiff.F,
3848      but: - conserving Mass, Heat & Salt.
3849           - better when using non-linear advection scheme (not yet fully tested)
3850           - can also be used in atmospheric set-up (for now, only the diffusion).
3851    
3852    checkpoint58x_post (2007/04/04)
3853    o IO option for global-file compact format:
3854      - add options when generating topology (utils/exch2/matlab-topology-generator)
3855      - add I/O capability (pkg/mdsio).
3856      - adapt utils/matlab/rdmds.m to read this format.
3857      for now long-line format not yet supported by pkg/mdsio (& exch2).
3858    o shelfice: add a few diagnostics
3859    
3860    checkpoint58w_post (2007/03/13)
3861    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
3862      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
3863      (and replace horiVertRatio in NH code).
3864      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
3865                         and tutorial_plume_on_slope (sensitive to truncation)
3866    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
3867      directly to drive seaice model (C-grid only)
3868    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
3869     - reintroduce computation of wind from stress,
3870     - compute tau (in exf_bulkformulae.F) from windstress averaged to
3871       mass points to avoid tau = 0
3872     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
3873    o rdmnc.m: make it work with "global" files created with gluemnc
3874    o rdmnc.m : some improvements in dealing with singleton dimension
3875      (tested on all testreport mnc output files).
3876    o genmake2: disable pkg/profiles if netcdf test fails.
3877    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
3878    o move call to cal_readparms up to make calendar parameters/variable available
3879      to all packages
3880    
3881    checkpoint58v_post (2007/02/08)
3882    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
3883      useDynP_inEos_Zc tested.
3884    o pkg/exf: changes to properly interpolate/mask/scale initial fields
3885    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
3886      and portions thereof.  See read_cs.txt for description and examples.
3887    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
3888      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
3889      following the great-circle arc between those 2 points.
3890    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
3891      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
3892    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
3893     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
3894     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
3895     - still needs work (not working with some options ; efficiency to improve)
3896       and serious testing.
3897     - use this scheme for temperature & salinity in 2 advection test exp.:
3898       advect_xy & advect_xz, respectively.
3899    
3900    checkpoint58u_post (2007/01/12)
3901    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
3902    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
3903    o testreport: add option "-skipdir" to skip some test.
3904    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
3905      momentum calculation.
3906    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
3907    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
3908      remove checkpoint.F and the_correction_step.F (no longer used);
3909      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
3910    o add option (linFSConserveTr) to correct for tracer source/sink due to
3911      Linear Free surface
3912    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
3913    o pkg/thsice: fix reading mnc-pickups
3914    
3915    checkpoint58t_post (2006/12/30)
3916    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
3917    o pkg/mdsio:
3918     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
3919       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
3920       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
3921     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
3922     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
3923       either MDS_READ_FIELD or MDS_WRITE_FIELD )
3924     - new S/R (to replace MDSWRITEMETA), which allows to write more
3925       informations (variable names, time ...) to meta files.
3926     - modify rdmds.m to give back the meta file content.
3927    o pkg/diagnostics: change vertical interpolation to be safer, and more
3928       flexible (define p-levels to interpolate to in data.diagnostics);
3929      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
3930       diagnostic pointer.
3931    o pkg/seaice: more cleaning up of seaice_growth, added many comments
3932    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
3933    o fix multi-category seaice:
3934     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
3935       SEAICE_MULTICATEGORY
3936     - fix short wave heat flux
3937    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
3938       and allow to use EVP solver. Change forward lab_sea: test both EVP
3939       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
3940    o Initial check-in of lab_sea adjoint
3941      (very similar to natl_box_adjoint/code_seaice)
3942      * used C-grid and EVP solver
3943      * used KPP, GM/Redi
3944      * uses inAdExact=.TRUE.
3945      * gradient checks fail for both ADM and TLM
3946        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
3947        f.d. gradients actually seem more problematic than ADM, TLM gradients;
3948        issue is related to forward mismatch between g77 an ifort
3949    o pkg/seaice: overhaul of thermodynamics
3950     - growth.F and groatb.F are replaced by new routine seaice_growth.F
3951     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
3952     - move a few global fields out of SEAICE.h into seaice_growth.F and
3953       make them 2D (FICE/QNETO/ ...)
3954     - remove FO (it is the same as QNETO)
3955     - introduce a few local fields to avoid modifying external fields such
3956       as atemp, etc.
3957    
3958    checkpoint58s_post (2006/12/11)
3959    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
3960      changed exf_set_gen.F so that
3961        genperiod=0 means input file is one time-constant field and
3962        genperiod=-12 means input file contains 12 monthly means
3963    o CG2D: use pre-computed solver main-diagonal (stored in common block);
3964      this affects truncation error ; generate new output file for exp. which
3965      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
3966        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
3967        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
3968        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
3969        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
3970        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
3971    o start implementation of deep-atmosphere and anelastic formulation
3972    o verification: remove 2nd copy of input files and use script "prepare_run"
3973      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
3974    o mom_common/vecinv/fluxform: fix a few initialisation isssues
3975    o profiles: fix for multithreaded case
3976    
3977    o diagnostics: rename few diags:
3978      s/'PRESSURE'/'RCENTER '/g
3979      s/'TICE    '/'oceFreez'/g
3980      s/'TAUX    '/'oceTAUX '/g
3981      s/'TAUY    '/'oceTAUY '/g
3982      s/'SWFLUX  '/'oceQsw  '/g
3983      s/DIFx/DFxE/g
3984      s/DIFy/DFyE/g
3985      and add few ocean-forcing diagnostics:
3986      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
3987    o modifications to pkg/seaice/growth.F and budget.F, which change results of
3988      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
3989      as actual snow thickness.  It now refers everywhere to effective snow
3990      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
3991    
3992    checkpoint58r_post (2006/11/17)
3993    o modifications to pkg/seaice/growth.F, which change results of
3994      lab_sea experiment: fixes pertain to melting snow over open water, to
3995      masking EVAP under sea ice, and to using the correct AREA variable for
3996      computations of EVAP, PRECIP, HSNOW, and GHEFF
3997    o add ability to read bathy, salt, and theta using MNC (off by def)
3998    o add flooding algorithm and advection of HSNOW for pkg/seaice;
3999      both are turned off by default and do no change any results
4000    o seaice advection with pkg/thsice: a step toward the use of non-linear
4001      advection scheme, but #ifdef or commented out for now (requires more EXCH).
4002    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
4003      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
4004      in natl_box (affects results @ truncation level: update output.txt)
4005    o multi-threading and IO:
4006      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
4007      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
4008        (needed to work with SingleCpuIO): tested in all verif. exp.
4009    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
4010      affects the results (but none of the verification test uses this scheme).
4011    o Adding some pkg/diagnostics capability to pkg/seaice
4012      (will certainly be subject to changes)
4013    o ctrl: adding new control variables:
4014      lwflux, lwdown, evap, snowprecip, apressure, runoff
4015    
4016    checkpoint58q_post (2006/10/20)
4017    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
4018      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
4019      high_res_cube configuration by 4% on Columbia.
4020    o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
4021      add (in global_with_exf/code) a version of EXF_INTERP_READ without
4022      dynamical allocation (seems to work in multi-threaded).
4023    o new function "MASTER_CPU_IO" (=T if master thread & master CPU, if using
4024      single CPU io) so that TAF does not have to see EESUPPORT.h
4025    o pkg/seaice: implement sea-ice loading (when using RealFreshWaterFlux)
4026    
4027    checkpoint58p_post (2006/09/08)
4028    o obcs: stop if obcs is used with useCDscheme = .true.
4029    o shelfice:
4030     - fix a sign error so that no slip at shelfice interface works
4031     - remove stop for combination non-hydrostatic code and shelfice. That does
4032       not mean, that the results are correct, but at least they are numerically
4033       stable
4034    o diagnoctics: modify UVELPHI and VVELPHI to include hfac (i.e. mass-weighted)
4035    o added adjoint exch routined for all exch*3d* routines
4036      and updated flow directives
4037    
4038    checkpoint58o_post (2006/08/28)
4039    o replace calls to EXCH_Z & EXCH_UV_AGRID: use the new _3D_ version ;
4040      remove old subroutines (_XY_ & _XYZ_); update the adjoint version.
4041    o change controling S/R for writing pickup file (new S/R do_write_pickup)
4042      and clean-up reading/writing of pickup files.
4043    o fix local version of read/write pickup (NH part) in rotating_tank/code
4044    o simplify EXCH interface:
4045     - change _XYZ_ interface to _3D_ subroutine (with 3rd dim in argument list)
4046     - not often used EXCH S/R (exch_z, exch_uv_agrid): keep only the _3D_ version
4047    o added the regrid package
4048    o shelfice:
4049     - add a simple boundary layer scheme to reduce noise
4050     - fix the indexing in shelfice_u/v_drag so that there will be actually drag
4051    
4052    checkpoint58n_post (2006/08/14)
4053    o fix globalArea multi-threaded calculation: need to apply GLOBAL_SUM to
4054       local variable (not in common block).
4055    o lot of small changes for multi-threaded. Most tests (using OMP & ifort) pass.
4056      - still problems with pkgs: mnc, exp2, dic, cal, exf (and probably more);
4057      - still BEGIN_MASTER/END_MASTER to remove around READ/WRITE_FLD S/R calls
4058        to work with SingleCpuIO.
4059    o add "_d 0" to real constant of pkg/cfc subroutines ;
4060       update exp. cfc_exemple & tutorial_cfc_offline output files.
4061    o multi-threading and IO:
4062      - all threads call READ_FLD S/R (needed if using SingleCpuIO):
4063        (no BEGIN_MASTER/ END_MASTER around the call, but inside MDSIO S/R.
4064      - barrier before and after reading.
4065      - stop if other than master is calling MDS_WRITELOCAL (if #undef IO_THREAD_SAFE)
4066      - avoid using MDS_WRITELOCAL for LAND pkg output.
4067      - new S/R AIM_WRITE_PHYS (replaces AIM_WRITE_LOCAL) to write AIM physics
4068        common-block variables ; Allows multi-threading with master-thread IO.
4069    o change default MAX_NO_THREADS from 32 to 4 ;
4070      and stop cleanly when MAX_NO_THREADS is too small.
4071    o add S/R BAR_CHECK to check multi-threaded barrier synchronization
4072    
4073    checkpoint58m_post (2006/07/17)
4074    o add a Non-Hydroatatic test (with 3-D Coriolis, NHMTerms, biharmonic Visc.
4075       and side-drag) on CS-grid : global_ocean.cs32x15.viscA4
4076    o make "tutorial_global_oce_latlon" from standard "global_ocean.90x40x15" exp.
4077       keep global_ocean.90x40x15 (for AD testing) with former secondary test
4078       (".qshyd") as the main test (mv output.qshyd.txt to output.txt)
4079    o CVS modules: update MITgcm_verif_basic; remove MITgcm_verif_ocean & _verif_atmos;
4080        add MITgcm_tutorials (= code + all the tutorials)
4081    o ecco, option to compute cost for total ssh (mean+anom)
4082    o consistent with addition of ptracer and ssh in pkg/profiles
4083    o profiles: adding ptracer and ssh
4084    o testreport: change multi-test output-file name
4085      (from output.txt.{name} to output.{name}.txt)
4086    o profiles: now ok for mutli-tiles case
4087    o seaice: add 4 parameters for different advection schemes for area,
4088      (effective) seaice thickness, enthalphy, and snow height. Their default
4089      is the standard parameter SEAICEadvScheme
4090    o calc_gw:
4091     - add cosFacU in zonal viscous flux (harmonic.visc.).
4092     - put back side-drag (call new S/R MOM_W_SIDEDRAG) and output.txt.
4093       of tutorial_plume_on_slope.
4094    o obcs_calc.F : fix index Pb in OBSeta & OBNeta (Thanks to Gianmaria).
4095    o calc_gw: true flux-form, account for horizontal grid spacing.
4096      update rotating_tank results, but not plume_on_slope (affected at
4097      truncation level, 11 digits).
4098    
4099    checkpoint58l_post (2006/07/12)
4100    o calc_gw:
4101     - take bi,bj loops outside calc_gw to fix Pb with local array KappaRU,V
4102     - remove side-drag for now (need to fix it); update plume_on_slope results.
4103     - fix for partial-cell & non-uniform dz; update plume_on_slope results.
4104    o commit code to make SST/SSS weights spatially variable
4105      (based on either variable in-situ or variable initial T/S weights)
4106    o pkg/ecco:
4107      * commit code to relax deviations of xx_theta, xx_salt to 5*sigma,
4108        now based on horizontally varying weights wthetaLev, wsaltLev
4109      * cost_averagesflags now returns year indices in addition to day, month
4110      * sflux balance is performed on annual basis
4111        (sflxumm, sfluxmm2, bal_sfluxmm)
4112      * for SSH anomaly, separate more cleanly contrib from T/P, ERS, GFO,
4113        including separate counting and multipliers
4114    o pkg/rbcs
4115      * add all necessary infrastructure for pkg/rbcs levN adjoint checkpointing
4116    
4117    checkpoint58k_post (2006/07/06)
4118    o testreport:
4119     - always build in dir. "build" (if not there, mkdir build instead of building
4120       & running in input)
4121     - run in dir run (if it exists), in build otherwise.
4122     - call prepare_run (if input/prepare_run exists)
4123     - run multi-threaded test (with new option: "-mth") if file input/eedata.mth exists.
4124    o pkg/exf modifications to interpolation and rotation routines for more
4125       reasonable treatment of North Pole singularity: for tracers North Pole
4126       value is set to northernmost zonal-mean value, for zonal velocity it is
4127       set to zero, and for meridional velocity it is set to northernmost value.
4128    o pkg/exf/exf_check_range.F
4129     - add tile index to diagnostics and move stop statement to the very
4130       end of the routine.
4131    o pkg/diagnostics: (diagnostics_main_init.F)
4132      define title of isomorphic variables according to the current config.
4133    o pkg/thsice with pkg/seaice dynamics:
4134    - fix domain of computation (interior only, required for exf) and do exchanges
4135    - seaice-dynamics forcing: add atmospheric and seaice loading to SSH gradient
4136    o towards a standard way of dealing with multi-threading in MONITOR
4137      and ${PKG}_MONITOR (all except ptracers_monitor) subroutines.
4138    o Pass variable viscosities (vertical and horizontal, e.g., KPP or Leith)
4139       to W momentum equation in nonhydrostatic and quasihydrostatic runs.  
4140    o make exf_monitor & seaice_monitor independant of the main (dynamics) monitor.
4141    o pkg/seaice: fix SEAICEuseEVPpickup parameter (put it in a commom block)
4142    o generic_advdiff: DST advection S/R : use local copy of velocity to compute CFL
4143       (problems ? with gradient check in bottom_ctrl_5x5 adjoint test)
4144    o tracer advection:
4145     - clean-up and simplify calc_common_factors.F
4146     - make a local copy of velocity and pass it (as u,v,r_Trans) to DST tracer
4147       advection subroutine (but still not used within DST advection S/R)
4148    o rename pkg aim_ocn_coupler to atm_ocn_coupler (later on, will be used without aim)
4149    
4150    checkpoint58j_post (2006/06/15)
4151    o new driver S/R: LOAD_FIELDS_DRIVER to load external forcing fields
4152      from file (collects calls previously in FORWARD_STEP)
4153    o move call to SEAICE_MODEL from FORWARD_STEP to DO_OCEANIC_PHYS
4154    o adjoint store dir. adjusted accordingly
4155    o genmake2
4156      replace target "ad_taf" by $(EXE_AD) ; add $(EXE_AD) to the make CLEAN list.
4157    
4158    checkpoint58i_post (2006/06/14)
4159    o pkg/seaice: add parameter that allows to scale/turn off effect of seaice
4160      on wind stress (SEAICEstressFactor defaults to 1.)
4161    o Total number of Timers is finite (<=40): comment out 2 non-essential one
4162      in the_main_loop.F to avoid Pb (e.g., when running fizhi test)
4163    o vector_invariant: fix highOrderVorticity(=4.th.Order) advection
4164      on CS-grid: no longer loosing mass.
4165    o exf & curvilinear-grid: no longer modify longitude xC & xG.
4166    o pkg/ggl90: fix sloppy output and fix a bug
4167    o pkg/seaice: added SEAICEuseEVPpickup parameter
4168      - Set to false in order to start EVP solver with
4169        non-EVP pickup files when using SEAICEuseEVP
4170      - fix sign error in diffusion in seaice_calc_rhs
4171    
4172    checkpoint58h_post (2006/06/07)
4173    * Modifications for bottom topography control
4174      o replace hFacC by _hFacC at various places
4175      o replace ALLOW_HFACC_CONTROL by ALLOW_DEPTH_CONTROL
4176      o add non-self-adjoint cg2d_nsa
4177      o update autodiff support routines
4178      o re-initialise hfac after ctrl_depth_ini
4179      o works for 5x5 box, doesnt work for global_ocean.90x40x15
4180    * Adding verification for 5x5 box (4-layer) bottom topography control
4181    
4182    checkpoint58g_post (2006/06/07)
4183    o pkg/diagnostics: implement "periodic averaging diagnostics" (e.g.,
4184       used for mean seasonal cycle, mean diurnal cycle); add an example
4185       in verification/global_ocean.cs32x15/input.thsice/data.diagnostics
4186    o pkg/ggl90:
4187      - add parameter (minimum surface kinetic energy)
4188      - fix bug (avoiding division by zero)
4189    o couple pkg/thsice to pkg/seaice:
4190      - modify advection in seaice to accomodate new scalar fields to be advected
4191      - only muliDimAdection scheme work with seaice/thsice
4192      - mapping of thsice-variables to seaice-variables, back and forth
4193      - does not break the verification experiments, but does not give the
4194        desired results either
4195    o pkg/seaice
4196      - make (default) second order advection a bit less confusing?
4197    
4198    checkpoint58f_post (2006/06/05)
4199    o couple pkg/thsice and pkg/exf (as a preparation for coupling pkg/thsice
4200      to pkg/seaice):
4201      - new routines thsice_map_exf and thsice_get_exf provide the interface
4202      - add an additional formal parameter to thsice_solve4temp
4203    o pkg/exf:
4204      - add new fields wspeed, snowprecip (to be able to couple to thsice)
4205      - correct Stefan-Boltzmann constant
4206      - new parameter for longwave surface emittance
4207      - separate some stuff from exf_bulkformulae into new routines  
4208        exf_radiation, exf_wind
4209      - add new parameters and constants: longwave emissivity for ocean, ice
4210        and snow, evaporation parameters over ice
4211      - decouple wind/stress computation from ALLOW_BULKFORMULA: always compute
4212        either wind from stress or stress from wind
4213    o pkg/thSIce:
4214    - split thsice_step_fwd.F in 2 S/R: thsice_step_temp.F & thsice_step_fwd.F
4215    - put i,j loops inside S/R: THSICE_ALBEDO, THSICE_SOLVE4TEMP, THSICE_EXTEND
4216       and THSICE_CALC_THICKN
4217    - for now, call to THSICE_GET_BULKF remains inside i,j loops.
4218    - add CPP option: ALLOW_DBUG_THSICE and header file THSICE_DEBUG.h
4219      to make debugging easier.
4220    - affects results (@ truncation level) of global_ocean.cs32x15.thsice: update output
4221    o pkg/bulk_force:
4222      - clean-up comments and parameters ;
4223      - add new Bulk-Formulae from Large and Yeager, 2004, NCAR/TN-460+STR ;
4224    o fix bug in aim+thsice albedo: snow & ice thickness arguments were switched;
4225      generate new output for test-experiment: aim.5l_cs.thSI
4226    o results_ad : rename "output.txt_adm" to "output_adm.txt" and change
4227      testreport accordingly
4228    
4229    checkpoint58e_post (2006/05/17)
4230    o SEAICE_CGRID adjoint done
4231    o R_STAR adjoint implemented.
4232      * Seems to just work (based on global_ocean.90x40x15/code_ad_nlfs/ )
4233      * need to sort out init. of h0facc, etc.
4234    o Make pkg/profile fully independent of ecco,cost, etc. stuff
4235      to be able to use it in pure forward.
4236    
4237    checkpoint58d_post (2006/04/21)
4238    o upgrade simple test-experiment to tutorial example:
4239     step.1: duplicate the experiment and (step.2) will remove the old copy.
4240      tutorial_barotropic_gyre      <- copy of exp0     (R1:barotropic_gyre_in_a_box)
4241      tutorial_baroclinic_gyre      <- copy of exp1     (R1:baroclinic_gyre_on_a_sphere)
4242      tutorial_global_oce_latlon    <- empty for now    (R1:global_ocean_circulation)
4243      tutorial_global_oce_biogeo    <- copy of dic_example
4244      tutorial_deep_convection      <- almost like exp5 (R1:nonhydrostatic_deep_convection)
4245      tutorial_plume_on_slope       <- copy of plume_on_slope
4246      tutorial_tracer_adjsens       <- copy of carbon   (R1:tracer_adjoint_sensitivity)
4247      tutorial_global_oce_optim     <- empty for now (David ?)
4248      tutorial_global_oce_in_p      <- copy of global_ocean_pressure
4249     some tutorials (R1) were already checked-in under tutorial_examples in release1_branch
4250    o correct a sign problem in cost_scat.F
4251    o obcs and ptracers: fix boundary conditions for advections schemes
4252      with larger stencil
4253    o thsice adjoint: start
4254    o mom_vecinv: add ISOTROPIC_COS_SCALING flags to mom_vi_hdissip for
4255      completeness
4256    o mom_fluxform: fixing the mutual use of ISOTROPIC_COS_SCALING
4257      and COSINEMETH_III, add comments in default CPP_OPTIONS.h
4258    o ptracers adjoint:
4259      * avoid extensive recomputatations
4260      * fix missing re-init. of gptr (missed by TAF)
4261    o obcs: add a flag (OBCSprintDiags, defaults is true) that allows
4262      me to turn off the excessive output to STDOUT that this package produces
4263    o move NH metric terms & 3.D Coriolis S/R to pkg/mom_common
4264      and add those terms in Vector-Invariant formulation.
4265    o in ctrl pkg, if ALLOW_CAL, use monthly mean controls
4266      if the control period (xx_hfluxperiod etc) is 0
4267    o in profiles pkg, clean routines and fix details
4268    o in ecco pkg, reading ssh data:
4269      fix problem in case the model does not start at iter0=0
4270    o fix mnc-pickup/restart for ptracers
4271    o new package prifiles:
4272      code to compute profile-based cost by Gael Forget
4273      (modifs in ecco, ctrl, autodiff)
4274    o Benign bug fix in initialization (spotted by M. Mazloff) of
4275      ctrl_set_globfld_xz.F ctrl_set_globfld_yz.F
4276    
4277    checkpoint58c_post (2006/03/23)
4278    o adjoint: finish NLFS adjoint and provide reference output in
4279      verification/global_ocean.90x40x15/results_ad_nlfs
4280    o seaice: add an EVP solver following Hunke and Dukowicz (1997) and the
4281      documentation of CICE. Turn on by defining SEAICE_ALLOW_EVP in
4282      SEAICE_OPTIONS.h and SEAICEuseEVP=.true. in data.seaice. Works only
4283      with SEAICE_CGRID defined.
4284    o move calendarDumps from "data" to "data.cal" and clean-up the code
4285      with a simple call to pkg/cal S/R: CAL_TIME2WRITE
4286    o add useEXF & useCAL flags (for now, set in hard-coded way)
4287    o add S/R to compute NH-metrics terms & Coriolis f' in vertical momentum
4288      (were missing in NH mode, and wrong in quasihydrostatic mode).
4289      waiting for Chris updated version of calc_gw to add those CALLs.
4290    o fix bug in quasihydrostatic S/R ;
4291      add a test for this option: global_ocean.90x40x15.qshyd
4292    o new S/R "SET_PARMS": set parameters that might depend on the use of some pkgs.
4293      (called from INITIALISE_FIXED, after INI_PARMS & PACKAGES_READPARAMS)
4294    o add on/off flag useOffLine for package OFFLINE
4295    o seaice:
4296      - modify advection so that it works also on the C-grid
4297      - extend loop ranges in seaice_lsr and seaice_dynsolver; fixes
4298        problem in multi-tile runs with C-grid
4299      - add flags for clipping ice velocities and/or masking solver forcing
4300      - fix drag (ocean on ice) formulation and a bug that caused noise in the
4301        C-grid solver
4302      - added a few comments to seaice_diffusion.F
4303      - separate C-grid and B-grid versions more cleanly (UVM and seaiceMaskU/V
4304        are now exclusive)
4305      - add a new ocean-ice stress coupling method (Hibler and Bryan, 1987) which
4306        required re-ordering the code a little:
4307       + make DAIRN global variable (defined in SEAICE)
4308       + move computation of the viscosities eta and zeta into a new separate
4309         routine (because I need to recompute them in seaice_ocean_stress.F)
4310    
4311    checkpoint58b_post (2006/03/13)
4312    o AIM+thSIce: fix sign of Short-Wave through the Ice ;
4313      update output.txt of exp. aim.5l_cs.thSI
4314    o various mnc cleanups and improvements:
4315      + shrink lookup tables by factor of ~4
4316      + better error reporting when running out of lookup space
4317      + able to handle longer path/file names (up to 500 chars)
4318    o adjoint:
4319      - Another overhaul of store dirs. for NLFS to eliminate  "hidden" recomputations.
4320      - TBD: "hidden" mom_vecinv recomp. in dynamics
4321    o change forcing_In_AB to affects both T,S forcing and Momentum forcing
4322     (allow to differentiate between forcing components using new integer flags:
4323      momForcingOutAB=1/0 & tracForcingOutAB=1/0)
4324     and add new flag to put Dissipation tendency out of Adams-Bashforth.
4325    o ecco
4326      - enable trend removal from SSH anomaly obs.
4327    o adjoint
4328      - a fix for PmEpR when #undef EXACT_CONSERV
4329      - fix of "hidden" recomp. in thermodynamics (no TAF warnings)
4330      - try to fix "hidden" recomp. in forward_step for NLFS
4331        (NLFS seems broken sometimes after I checked it in)
4332    o seaice:
4333     - add c-grid version of the dynamic solver:
4334       + three new routines that are the c-grid substitute lsr, dynsolver
4335         and ostres
4336       + put a few fields that were local to dynsolver into global common
4337         blocks, so that I can move the computation of stresses etc into
4338         seaice_lsr (saves coding but may break the adjoint).
4339     - replace more hardwired parameters by runtime parameters
4340     - add ice masks that mask the rhs of the implicit solvers where there
4341       is no ice (commented out in seaice_dynsolver, because i am not sure
4342       if this works properly), eventually this should replace the clipping
4343       of ice velocities in seaice_dynsolver to +/-40cm/s.
4344    o remove the BUILD_INFO.h include from CPP_EEOPTIONS.h and explicitly
4345      include it only where its needed
4346    o move balancing of fluxes before the call of external_forcing_surf
4347    o seaice:
4348      - correct units of turning angles (now they are really in degrees)
4349      - move computation of GWATX/Y out of main routine into dynsolver
4350      - initialize GWATX/Y in seaice_init
4351    o Apply mask on Fresh-Water flux (needed for SSH forcing).
4352      update output.txt of exp. global_ocean_ebm & cpl_aim+ocn (affects cg2d residual)
4353    o seaice: add runtime flags for turning angles (default to zero)
4354    o Adding runtime parameter to exf/, ctrl/, to remove on-the-fly global mean
4355      and trend from exf forcing and ctrl control adjustments
4356    o fix variable aliasing in gad_calc_rhs that cannot be handled by TAF
4357      (since checkpoint57x_post)
4358    o change the default rotation period to 86164.s = the Earth rotation
4359    o 1rst implementation of Implicit IGW using the 3-D solver (use3Dsolver=T)
4360      and based on a reference stratification. Tested within hs94.cs-32x32x5.
4361    o seaice advection: add code for choosing between the default (2nd order
4362      central differences) and multiDim advection schemes provided by
4363      pkg/generic_advdiff
4364    o seaice:
4365      - removed all references to SEAICE_GRID.h fields from
4366        dynsolver, advect, diffus, lsr, without changing the results of lab_sea
4367        (cubed-sphere configuration will change a little)
4368      - grid computations in seaice_init are obsolete now.
4369      - cleaned up code a little so that is easier to read (hopefully).
4370      - added new (better?) discretizations of default advection and diffusion
4371        (turn on with SEAICEuseFluxForm)
4372      - replace 1 in 3d global fields by kSurface in growth.F
4373      
4374    checkpoint58a_post (2006/02/13)
4375    o seaice:
4376      - bug fix in advect.F
4377    o shelfice:
4378      - separate shelfice load anomaly from pload (breaks with time
4379        dependent forcing), => introduce constant field shelficeLoadAnomaly.
4380        Its default is 0., but it may be computed more cleverly from (unknown)
4381        t- and s-profiles (tRef, sRef) and actual EOS. For now this has to be
4382        done offline. A good approximation of the pressure load anomaly is
4383        necessary to avoid large initial adjustment processes underneath
4384        deep-reaching shelfice.
4385      - small fix in ISOMIP shelfice_thermodynamics
4386      - add more sophisticated thermodynamics of Hellmer (1989), this is
4387        now the default
4388      - give a few constants more intuitive names
4389    o add code to balance EmPmP and Qnet at the end of do_ocean_physics. Useful
4390      if bulk formulae are used in long integration (especially EmPmR). Turn
4391      on with balanceEmPmR = .true. or balanceQnet = .true. in data, PARM01
4392      if balancePrintMean, the imbalance that is substracted is printed to
4393      STDOUT.
4394    o fix bug (typo) in obcs_apply_eta.F
4395    o add a new package shelfice which enables us to model the circulation
4396      underneath shelf-ice with draughts of hundreds of meters.
4397     - works
4398     - to do: + include improved thermodynamics
4399              + check whether kSurfC (from model/inc/SURFACE.h) can be used
4400                instead of new field kTopC
4401              + can we use topoFile, Ro_surf and existing code in ini_depth.F
4402                instead of new field R_shelfIce and new code in ini_depth.F
4403                and ini_mask_etc.F?
4404              + adjust vertical mixing schemes?
4405    o seaice pkg:
4406     - add a cpp-flag to include a simple formula for a salinity dependent
4407       freezing point of sea water at the surface
4408     - change the contents of SEAICE_TEST_ICE_STRESS_1 so that zonal and
4409       meridional stresses are now different (and hopefully correct)
4410    o AIM pkg: change threshold on large-scale condensation to conserve Heat.
4411       update results of aim.5l_LatLon test ; fix title & units of AIM diagnostics
4412       and  change 3 diagnostics names (OSR,OSRCLR,KM -> TSR,TSRCLR,DRAG)
4413    o pkg/diagnostics: add options and parameters for regional-statistics
4414       diagnostics ; define regions by reading a region-mask from a file
4415       (might add other options later)
4416    o pkg/bulk_force:
4417     - add option and parameters to use AIM surface-flux formulae.
4418     - Change loading part: S/R BULKF_FIELDS_LOAD only take care of bulkf_fields ;
4419       others forcing fields (defined in PARM05, parameter file "data") are loaded
4420       from S/R EXTERNAL_FIELDS_LOAD, as usually (with useBulkforce = T or F).
4421     - initialise all bulkf_fields in bulkf_init.F ; do in-lining of exf_bulkcdn.F
4422     - use the right EXCH call for uwind,vwind (to work on CS-grid).
4423     - re-arrange header files (move parameters from BULKF.h to BULKF_PARAMS.h)
4424       and parameters (note: calcWindStress replaces .NOT.readwindstress).
4425     - cleaner interface with pkg/thSIce (new S/R THSICE_GET_PRECIP).
4426    
4427    checkpoint58 (2006/01/12)
4428    o add "--embed-source" option to genmake2 which, when the supporting
4429      tools can be compiled (as determined by genmake2) will turn on the
4430      embed_files package which then embeds the entire MITgcm source code
4431      (*.[fFhc] + Makefile) used for the build within the executable
4432      - requested by CNH but off by default
4433      - adds a paltry <9MB to the mitgcmuv executable in most cases
4434      - only writes the output when useEMBEDSRC in eedata is true
4435    o clean up 3-dim. relaxation codes:
4436      * Fix I/O inconsistency in pkg/rbcs: replace precFloat32 by readBinaryPrec
4437      * Remove 3-dim. relaxation code from pkg/exf (now use only pkg/rbcs)
4438      * Thanks to Tom Haine for testing!
4439    
4440    checkpoint57z_post (2005/12/31)
4441    o make CG3D solver compatible with Free-surface at k > 1 (p-coordinate):
4442      affects output (@ truncation level) of exp. plume_on_slope ; updated.
4443    o fix the pickup behavior for obcs in combination with ptracers
4444    o fix a bug in ptracers_external_fields_load
4445    o no AB-2 at the first iteration for Gw (consistent with Gu,Gv,Gt,Gs ...)
4446      affects results of NH experiments (but all our NH tests have Gw[it=1]==0 !!)
4447    o transfered surface NH pressure to eta field (if exactConserv).
4448    o gmredi: fix bugs in slope tapering ldd97 (depthZ had the wrong sign)
4449         and update lab_sea output.txt file.
4450    o completing 3-dim. relaxation code: additional term
4451         1/tau*( theta(i,j,k) - thetaStar(i,j,k) )
4452      in S/R EXTERNAL_FORCING_T (file external_forcing.F)
4453      * At compile time, in "EXF_OPTIONS.h" set
4454          #define  ALLOW_CLIMTEMP_RELAXATION
4455          #define  ALLOW_CLIMSALT_RELAXATION
4456      * At runtime in "data", under &PARM03 set (e.g., units in seconds)
4457          tauThetaClimRelax3Dim = 15552000.0,
4458          tauSaltClimRelax3Dim  = 15552000.0,
4459      * 3 cases:
4460          1) Use a constant-in-time 3-dim. field
4461          2) Provide 12 3-dim. fields corresponding to Jan., ... , Dec.
4462          3) Real-time relax. to time-evolving prescribed field
4463    o Adding Laplacian-type smoothness constraint on
4464      initial and boundary (forcing) controls (ic, bc)
4465      * enable at compile-time via
4466        ALLOW_SMOOTH_IC_COST_CONTRIBUTION, ALLOW_SMOOTH_BC_COST_CONTRIBUTION
4467      * enable at run-time via mult_smooth_ic = 1, mult_smooth_bc = 1
4468      * Absolute scale somewhat unclear so far
4469      * no area weighting was included since no other cost term does so far
4470    
4471    checkpoint57y_post (2005/12/08)
4472    First step for a NLFS adjoint
4473    o initially suppress rStar (new flag DISABLE_RSTAR_CODE)
4474    o new init. routines for calc_r_star, calc_surf_dr
4475    o still need to deal with ini_masks_etc
4476    o testreport seemed happy
4477    checkpoint57y_pre (2005/12/08)
4478    
4479    o obcs: always reset wVel & eta (to zero or prescribe it) at the OBs.
4480    o add new package rbcs (for relaxing ptracers at boundaries/depth/surface etc)
4481    o add new offset feature to offline pkg (plus minor cleanup)
4482    o cfc fixes for final year of integration
4483    o clean up GCHEM_OPTIONS.h/DIC_OPTIONS.h (all options should
4484      be in GCHEM_OPTIONS).
4485    
4486    checkpoint57x_post (2005/12/04)
4487    o fix testreport Pb in multiple test experiment.
4488    o cleanup our namelist syntax in verification:
4489      - make it more F95 standards compliant (some work still needed)
4490      - allows the vast majority of our tests to work with gfortran
4491    o Non-Hydrostatic:
4492     - put all NH variables (formerly in DYNVARS.h & GW.h) in NH_VARS.h
4493     - fix exchange calls for CS-grid using the new EXCH_S3D_RL.
4494    o Allow to apply AB on T,S rather than on AB(gT,gS):
4495     - implemented within #ifdef ALLOW_ADAMSBASHFORTH_3
4496     - use the same arrays (gtNm,gsNm) to hold tracer field at previous
4497       time-steps (if AB(T,S)) and tendencies (if AB(gT,gS)).
4498     - need a "clever" read_pickup to restart from the other AB formulation
4499    o move local commom bloc /GlobalLo/ (used for singleCpuIO) in EESUPPORT.h
4500    o remove some unused variables (reduces number of compiler warnings)
4501    o adjoint
4502      * Disable useVariableViscosity for adjoint for time being
4503        (there are a number of extensive recomputations)
4504      * Initialize certain variables needed for adjoint
4505    
4506    checkpoint57w_post (2005/11/03)
4507    o pkg/mdsio: use MAX_LEN_FNAM (instead of hard coded 80) for file-names
4508                 fix the singleCpuIO RS version of MDSWRITEFIELD
4509       and add a WARNING if using globalFiles=T with multi-processors.
4510    o write grid-file(s) in only one format (MDS or MNC): default=MNC (if
4511      using MNC); can force MDS output by setting writegrid_mnc=F in data.mnc
4512    o tracer advection scheme:
4513      add DST-2 (=Lax-Wendroff) & 1rst order upwind schemes (the way to get
4514       those 2 schemes before, changing GAD_FLUX_LIMITER.h + to recompile,
4515       was not very convenient).
4516      add implicit version for DST-3 & DST3_Flux_Limit vertical advection;  
4517       (further tests needed for the implicit DST & Flux-Limiter schemes).
4518    o PTRACERS: added namelist parameter PTRACERS_ref in analogy to tRef
4519      and sRef for convenience, handy, when you want to initialize
4520      ptracers in a large domain with a constant non-zero value. Also,
4521      untangle ptracers_init.F a little.
4522    
4523    checkpoint57v_post (2005/10/13)
4524    o change dome exp. to use variable viscosity in side-drag terms.
4525    o remove all the files from the cfc_offline test since they are now
4526      incorporated into tutorial_cfc_offline which has been producing
4527      identical results for a few days of testing
4528    o add new parameter: sideDragFactor to enable half-slip-side BC
4529      and change side-drag S/R to use viscosity from mom_calc_visc
4530      (can switch back by setting sideDragFactor=0.); affects results at
4531      truncation level; regenerate output for exp.: global_ocean.cs32x10(x3),
4532       global_ocean_ebm, global_ocean_pressure, matrix_example & MLAdjust(x5).
4533    o vorticity & strain are now computed without masking, to account for
4534      no-slip-side BC in variable viscosity calculation ; mask is applied
4535      anyway later on, before computing advection/coriolis terms.
4536    o modify exp4 to test new obcs support for reading from external files
4537      and for passive tracers
4538    o fix behavior of ptracers_monitor when monitor output is written to a
4539      netcdf-file; still not independent of monitor.F (writes in the same
4540      file).
4541    o change default value of tRef (put a uniform, meaningful value for ocean
4542      & atmos) and initialize sRef (was missing, as Martin mentioned).
4543    o Redefine viscC?Leith*.  Change the coefficients of Leith viscosity
4544      to be proportional to enstrophy dissipation length.  Thus,
4545       viscC?leith?_new=pi*(viscC?leith?_old)^(1/3)
4546      This is now consistent with Smagorinsky and with the manual.
4547    
4548    checkpoint57u_post
4549    o OBCS and PTRACERS: add open boundary support for passive tracers
4550      - either use homogenous (pseudo) v.Neumann conditions or prescribe
4551        OB-values from file; this is not different from the way theta and salinity
4552        are treated
4553      - however, Orlanski-radiation conditions are not supported, and the model
4554        will stop if you use pTracers and Orlanski at the same time.
4555      - beefed up the rountine obcs_external_fields_load: now only those open
4556        boundary values are overwritten with values from files for which there
4557        are really files, otherwise the OB-fields remain untouched. This makes
4558        it possible to use different OBs at different ends of the domain (as
4559        with EXF)
4560    o reduce number of exch calls in shap_filt (s2).
4561    o CS-grid: fix divergence contribution to Leith viscosity. Affects (@
4562      truncation level) 4/5 MLAdjust test results (11&12 digits match).
4563    
4564    checkpoint57t_post (2005/10/03)
4565    o test biharmonic viscosity + no-slip with exp: global_ocean.cs32x15.viscA4
4566    o finish adding brackets (coriolis S/R, vecinv) in multi-terms sum to get
4567      same truncation, independent of the face number: affects affects several
4568      test. exp.: Update global_ocean.cs32x15 (+.thsice) & MLAdjust (all 5).
4569    o fix bug in mom_v_sidedrag (biharmonic viscosity was counted 2 times);
4570      note that biharmonic viscosity + no-slip was not tested in any experiment.
4571    o fix bug in non-linear free-surf side-drag ; generate new output for
4572      global_ocean.cs32x15(+.thsice) & global_ocean_pressure.
4573    o make mnc honor the writeBinaryPrec flag for most kinds of output
4574    o eesupp: split EEPARAMS into EESIZE/EEPARAMS and add a vector global sum
4575    o minor change in averaging W (mom_vi_?_vertshear.F) that affects truncation
4576      error; update output from global_ocean.cs32x15(+.thsice) & MLAdjust (all 5).
4577    o add brackets in multi-terms sum to get same truncation, independent of
4578      the face number (manage to get exactly same value of gU,gV at the cs-edge)
4579      affects several test. exp. Update global_ocean.cs32x15 (+.thsice).
4580    o Clean, new version of mom_calc_visc.  Adds a new feature, viscAhRemax
4581      and viscA4Remax, which allow one to limit the minimum viscosity by specifying
4582      a maximum grid-scale Reynolds number.  Also, changes all length calculations
4583      in the case of grid anisotropy to geometric mean of dx**2 and dy**2.
4584      Suggested values of viscosity parameters found in mom_calc_visc.
4585      Many new viscosity diagnostics available.
4586    
4587    checkpoint57s_post (2005/09/20)
4588    o Add clearing-house for viscosity calculations, mom_calc_visc and
4589      correct numerous bugs in LeithD and Smagorinsky discretizations.  
4590      mom_calc_visc now allows for Smagorinsky, Leith and LeithD to be
4591      used simultaneously, and to be used in mom_vecinv and mom_fluxform.
4592      Mom_vecinv can be used with standard viscous calculation (mom_vi_hdissip.F)
4593      and with Strain-Tension viscous term calculation (mom_hdissip.F).  
4594      The Strain-Tension form is now called with useStrainTensonVisc=.true.
4595      ViscAhStrain and viscAhTension are now retired.
4596    o diagnostics "VISCAHD" & "VISCA4D" replace "VISCAH" & "VISCA4".
4597    o In response to JMC's bug report, genmake2 now ignores any soft-links
4598      that it finds in the *current* directory when searching for files.
4599      Soft-links found in any other source directories will still work as
4600      they did before.
4601    o add HAVE_SETRLSTK define and useSETRLSTK flag (eedata) which calls
4602      a C routine to unlimit the stack size
4603    o mnc-ify pkg/aim snapshot vars
4604    o mnc-ify pkg/land as requested by Daniel
4605    o various changes to mnc including:
4606      - all files use the new "BASENAME[[.ITER].{t|f}NUM].nc" format
4607      - output can now be grouped so that all files within a group
4608          change the ITER portion of their names in lock-step together
4609      - can now read ("global") PER-FACE (in addition to PER-TILE) files
4610          and works with both EXCH1 and EXCH2 (but needs more testing)
4611      - writing works for all verification test cases w/ g77 on Linux
4612    
4613    checkpoint57r_post (2005/09/07)
4614    o make MNC variable initialization happen earlier
4615    o add diagnostics for (almost) each term of the momentum Eq.
4616    o remove SST,SSS,UVEL_k2,VVEL_k2 diagnostics.
4617    o move pkg timeave out of pkg-groups "oceanic" & "atmospheric" (pkg/pkg_groups)
4618    o remove MINIMAL_TAVE_OUTPUT option ;
4619      add "dumpInitAndLast" to replace "nodumps" (and MINIMAL_TAVE_OUTPUT).
4620    o move some basic S/R (used elsewhere in the code) from pkg/mdsio to eesupp/src
4621      allows to compile without pkg/mdsio (& test successfully hs94.1x64x5)
4622    o add MNC output for adjoint of EXF (adexf), SEAICE (adseaice)
4623    o add time-dependent SST, SSS control
4624    o cost terms in ecco/ modularized (new cost_generic.F)
4625    o cost_averages routines are modularized (new cost_averagesgeneric.F)
4626    o new infrastructure for seaice model vs. obs misfits in seaice/
4627      * driver from the_main_loop.F is seaice_cost_driver.F
4628      * first term is AREA vs. SMR observation misfit (ALLOW_SEAICE_COST_SMR_AREA)
4629      * gradient check in Exp. 6a of natl_box_adjoint/
4630    o natl_box_adjoint input_seaice for Lab. Sea now available online via wget
4631      (see README file)
4632    
4633    checkpoint57q_post (2005/08/19)
4634    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
4635    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
4636      - bug was reported by Jean-Michel and Ian Fenty
4637    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
4638      update exp. cpl_aim+ocn output.
4639    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
4640      Needed for high-res. runs with large global files
4641      to be able to limit tapelev size
4642    o Changed some tests for adjoint:
4643      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
4644      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
4645      * global_ocean.90x40x15/ back to default 3-level checkpointing
4646    o Modifications to enable scripted COMMON to MODULE conversion
4647      * verification/OpenAD/code/ has necessary scripts and description;
4648      * converts, compiles and runs successfully;
4649    
4650    checkpoint57p_post (2005/08/01)
4651    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
4652    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
4653      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
4654    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
4655    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
4656      (was already the case for dissipation with mom_vecinv,
4657       and also the case for grad.PhiHyd when staggered-timeStep)
4658      This will allow to put dissipation out-off the AB time-stepping.
4659     Unfortunately, affects truncation error. Update output of exp. that "fails"
4660      (cg2d matching number) and leave the others for later: front_relax(10),
4661      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
4662      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
4663    
4664    checkpoint57o_post (2005/07/30)
4665    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
4666      (2) its ready to be documented during the 20050801 DocFest
4667    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
4668      for ideal_2D_oce and lab_sea on linux_ia32_g77
4669    o set to #undef CTRL_SET_OLD_MAXCVARS_30
4670      in global1x1_tot/code_seaice_adj to access indices 32, 33
4671      (worth another tag)
4672    
4673    checkpoint57n_post (2005/07/29)
4674    o adding precip control xx_precip 32
4675    o adding swflux control xx_swflux 33
4676    o Replacing 10 forcing penalty cost routines by 1 generic.
4677    o Implementing partitioning in time-mean and variable adjustment
4678      for atmos. state.
4679    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
4680    o in natl_box_adjoint:
4681      * updated exp 1 to 10
4682        (but does not have time-mean vs. variable split results yet)
4683    o updated global1x1/*_seaice_adj/
4684      to incorporate latest changes
4685    o enable useSingleCpuIO for mdsio vector routines
4686      (applies in particular to tapelev I/O)
4687    o removed inefficient K-loop in all active_file*control*.F
4688    
4689    checkpoint57m_post (2005/07/28)
4690    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
4691      and advect_cs (use EXCH-2 and standard cs-32 grid files).
4692    o pkg/exch2: filling of face-corner halo regions is optional
4693      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
4694    
4695    checkpoint57l_post (2005/07/14)
4696     tag before updating tutorials (pre-release-2)
4697    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
4698       for output and interpolation of input fields onto model grid)
4699    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
4700       Affects results of exp. rotating_tank ; update output.txt.
4701    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
4702          and taking the square quantity and/or using a fraction-weight field.
4703    o fix aim_diagnostics_init.F mate numbers.
4704    o add mnc output capability to diagnostics/diagstat and update
4705      our cvsignore files for the ACSII output generated
4706    
4707    checkpoint57k_post (2005/07/02)
4708    o lab_sea now uses diagnostics package and provides a suite of
4709      new EXF diagnostics output.
4710    
4711    checkpoint57j_post (2005/06/30)
4712    o exf
4713      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
4714        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
4715        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
4716      * extended diagnostics output
4717        - now includes all EXF variables
4718        - hs, hl moved to common block
4719        - separate S/R for diagnostics, called after ctrl vector is added
4720        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
4721        - EXFqnet contains true Qnet (i.e. includes qsw)
4722      * updated verif. lab_sea, global_with_exf
4723      * Rearranging hflux (exf_mapfields -> exf_getforcing)
4724        to ensure that diagnostics sees a true EXFqnet
4725    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
4726    o diagnostics pkg: change pointers so that 1 diagnostic can be used
4727      several times with different frequencies.
4728    o mnc-ify the thsice package as requested by Daniel Enderton
4729      - the monitor--MNC output needs work
4730      - many attributes need to be added (most are currently blank)
4731    o mnc-ify theaim_v23 package as requested by Daniel Enderton
4732      - many attributes need to be added (most are currently blank)
4733    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
4734    o add Sadourny like discretization to the 4th.O vorticity advection scheme
4735    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
4736      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
4737         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
4738    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
4739     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
4740    
4741    checkpoint57i_post (2005/06/19)
4742    o Diagnostics package was changed: diagnostic allocation is now deactivated
4743      by setting an empty file name in the namelist (used to be by setting 0 frequency)
4744    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
4745      add 1rst Order upwind vertical Shear.
4746    o add a quick fix for A/B checkpointing in OFFLINE mode
4747    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
4748      end-run around the C/Fortran linking horror in eesup/src/timers.F
4749    o added pkg/runclock: allows user to terminate run based on wall clock
4750    o added non-hydrostatic scaling parameter: nh_am2
4751    o pkg/my82: futile attempt to make results compiler-independent by adding
4752      some "_d 0", etc. no effect.
4753    o for mnc output, fill the 'T' coordinate var with myTime and create a
4754      separate 'iter' variable for iteration count
4755    o pkg/diagnostics:
4756      add new capability: output of Global/Regional & per-level statistics ;
4757      tested against monitor output (including land & thSIce) on various exp.
4758    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
4759    
4760    checkpoint57h_done (2005/05/19)
4761      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
4762      data.diagnostics, data.gchem, data.ptracers) is done.
4763    
4764    o pkg/diagnostics: prepare for Global/Regional statistics.
4765      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
4766    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
4767      and rename it: DIFFERENT_MULTIPLE
4768    
4769    checkpoint57h_post (2005/05/14)
4770    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
4771    o pkg/diagnostics: change output frequency, now in seconds (instead
4772      of Nb of iterations). This requires to change data.diagnostics.
4773    checkpoint57h_pre (2005/05/12)
4774    
4775    o in mnc, let the user create the output dir if both mnc_outdir_date
4776      and mnc_outdir_num are false
4777    o add fflags() to pkg/diagnostics which allows one to specify, on a
4778      per-file basis, the file precision [default behavior is unchanged]
4779    o added diagnostics to pkg/kpp, including computation of mixed layer
4780      depth based on a temperature/density criterion
4781    o updated verification/natl_box to test the new pkg/kpp diagnostics
4782    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
4783    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
4784    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
4785      not mnc -- this mistake was found by JMC and is now corrected
4786    
4787    checkpoint57g_post (2005/04/15)
4788    o add Adams-Bashforth 3rd Order time stepping:
4789      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
4790      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
4791    checkpoint57g_pre (2005/04/15)
4792    
4793    o make lambda[Theta,Salt]ClimRelax spatially varying
4794      (default remains spatially uniform constant based on tau)
4795    o added new control variables
4796      * init. uVel, vVel, etanN
4797      * lambda[Theta,Salt]ClimRelax
4798    o separate masks used for ctrl_pack/unpack 'from write_grid' output
4799      (suggested by G. Forget)
4800    
4801    checkpoint57f_post (2005/04/06)
4802    o add parameter "baseTime" = model base time = time at iteration zero
4803      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
4804      account for baseTime shift
4805    o move Coriolis arrays from PARAMS.h to GRID.h
4806    checkpoint57f_pre (2005/04/06)
4807    
4808    o mnc-ifying the seaice package
4809    o introduced an alternative length scale calculation for use in the limiting
4810      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
4811    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
4812    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
4813      as well as grad(vort3).  Made it compatible with both approximate form
4814      for the cubed sphere and full form of these gradients.  Added flag
4815      useFullLeith to select between approximate and full form.  
4816    o add "d0" in getcon.F to reduce differences between compilers/platforms
4817      update output.txt of exp. fizhi-gridalt-hs
4818    o change port_rand funtion to allow to set the seed.
4819    o fix obscure MNC bug involving conversion between reals and integers
4820      - it caused no problems with certain (eg. gcc, ifc) compilers but the
4821        new version is now more standards-compliant
4822    o adjoint-related modifications
4823      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
4824      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
4825      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
4826    
4827    checkpoint57e_post (2005/02/28)
4828    o Adding eddy stress controls a la Ferreira et al.
4829    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
4830    
4831    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
4832      update output.txt of exp. fizhi-gridalt-hs
4833    o add more "Z" dimensions and associated coordinate vars to MNC
4834    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
4835    o parameter calendarDumps: when set, approximate months (30-31 days) and years
4836      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
4837      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
4838      months and years.  Requires pkg/cal.
4839    o diagnostics: add pickup functionality
4840      - off by default for backwards compatibility
4841      - current version only uses MDSIO -- MNC will be added
4842    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
4843    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
4844    
4845    checkpoint57d_post (2005/02/11)
4846    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
4847    o modify verification/ideal_2D_oce so that it tests the creation of mnc
4848      output from the diagnostics package
4849    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
4850    o make genmake2 more portable by using ".$FS" instead of ".f" for more
4851      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
4852    o add coordinate variables to the MNC output from the diagnostics package
4853    o change MNC-flags default value: true when useMNC=TRUE
4854    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
4855      the ability (off by default) to read the grid information using MNC
4856    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
4857    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
4858    o do snap-shot diagnostics at the middle of the time-interval (instead of
4859      at the end).
4860    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
4861      new test for AIM with thSIce + slab-ocean
4862    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
4863    o move state variable diagnostics to the beginning of the time step ;
4864      (note: still needs some work specially for snap-shot diagnostics)
4865      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
4866    
4867    checkpoint57c_post (2005/01/27)
4868    o Change testing option (-ieee) to get closer agreement between g77 & ifort
4869    o generate new output.txt files on faulks with g77 & the new -ieee option
4870    checkpoint57c_pre (2005/01/27)
4871    
4872    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
4873      update output.txt of exp. global_ocean.90x40x15
4874    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
4875      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
4876    o add saltFlux(+File) forcing capability with periodicExternalForcing
4877    o allow to use pkg diagnostics for GM-Redi & ThSIce output
4878    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
4879    o improvements for the MNC output from DIAGNOSTICS:
4880      - correct handling of the unlimitied dimension
4881      - all dims now have associated coordinate variables
4882      - variables located at U, V, and Corner ("Z") points are now written
4883        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
4884        *all* data points are output
4885    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
4886    o added pkg/seaice/seaice_monitor.F
4887    o mdsio_readfield.F can now read files visible only to master MPI process.
4888    o pkg/seaice: some test code for ice-modified ocean stress
4889    o exf_getffields interpolation defaults to bilinear for all scalar forcing
4890      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
4891      spurious negative numbers for precipitation and humidity.  Will cause
4892      some small numerical differences for integrations using pkg/exf/exf_interp.F.
4893    o pkg/ctrl/
4894      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
4895        May be enabled via doPackDiag
4896      *  introduce z-scaling of
4897         + gradient (doZscalePack) and
4898         + control (doZscaleUnpack)
4899    o pkg/mdsio/
4900      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
4901      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
4902    
4903    checkpoint57b_post (2004/12/20)
4904    o simplify options in diagnostics_fill arguments (remove weird combinations)
4905    o fix MNC coordinate variables so that they now contain per-face index
4906      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
4907      general, EXCH2 grids are only aligned to a "local" coordinate system
4908    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
4909    o Implement instantaneous output within pkg diagnostics:
4910      setting a negative frequency in data.diagnostics produces
4911     "snap-shot" output (as opposed to time-average if freq > 0)
4912    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
4913      NOTE: change ptracer diagnostics name: use 2 characters to work with
4914            more than 9 tracers. Add also diagnostics of advect & diffus flux.
4915    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
4916      becomes the coordinate variable for the 'T' dimension
4917    o add CF-style coordinate variables to MNC
4918      - just a first cut:  numbers are meaningless on the cubesphere and
4919        missing along the T axis but otherwise it works!
4920    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
4921    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
4922    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
4923      this is based directly on what the model compute, so that the content of
4924      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
4925    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
4926    o clean up build options files for SunOS, in particular
4927      - remove -traditional from xmakedepend
4928      - change -xarch=v9 to -xarch=native for f77
4929      - restore use of make (not gmake)
4930      - add CC=gcc if using g77
4931    o changes per discussion of AM, JMC, & EH3 today:
4932      - move redundant "grid" variables out of "state" -- in preparation of
4933        creating proper CF-style coordinate variables and in recognition
4934        that any/all grid variables can be easily copied (eg. w/NCO) from
4935        the grid files into any of the other NetCDF files
4936      - *always* output grid variables with MDSIO (this will eventually be
4937        changed)
4938      - output MNC grid file if useMNC is true
4939    o every instance of _END_MASTER() has been found and replaced with
4940      _END_MASTER( myThid ) in order to satisfy certain picky Sun
4941      preprocessors
4942    o re-arrange diagnostics pkg initialisation:
4943     - allow each package to extend the available diagnostics list
4944     - add some checking and fix small problems (multi-threaded, ...)
4945     - new S/R diagnostics_fill (replace fill_diagnostics):
4946       look through the short list of active diag. (instead of the long list)
4947       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
4948    
4949    checkpoint57a_post (2004/12/10)
4950    o this set of changes restores TAMC compatibility
4951      tested for global_ocean.90x40x15 adjoint on trough
4952      (what a pain)
4953    
4954    checkpoint57a_pre (2004/12/10)
4955    o some modifs in tools/build_options for sunos
4956    o call ctrl_pack for ctrl at end for optimcycle=0
4957    
4958    checkpoint57 (2004/12/09)
4959    o add horizontal bi-harmonic viscosity for vertical velocity
4960      - new parameter viscA4W (defaults to viscA4)
4961      - affects only non-hydrostatic code
4962      - to be done: no-slip lateral boundary conditions
4963    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
4964    o implement Implicit Vertical advection for pTracers
4965    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
4966      (implemented also for implicit vertical diffusion & advection)
4967    o OBCS: extend application of tracer open boundary conditions
4968      to a strip beyond the boundary of width Olx/Oly
4969    o add call monitor to TAF set of required calls (flow directives)
4970      and include in natl_box_adjoint
4971    o untangle a few ifdefs related to cost, ctrl, autodiff
4972      untangel a few ALLOW_ECCO_OPTIMIZATION
4973    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
4974      (theta2, salt2 in ecco_cost_weights)
4975    
4976    checkpoint56c_post (2004/12/03)
4977    o OBCS as control variables
4978      - update ctrl_ad_diff.list, obcs_ad_diff.list
4979      - remove balance of obcs controls from default
4980      - fix index bug nobcs in ctrl_init
4981      - fix dummy fields filen in ctrl_pack
4982      - add dummy weights for obcs
4983    o lsopt: comment out fort.94 output
4984    o optim:
4985      - remove unnecessary header files
4986      - adjusted namelists
4987      - add xerbla.F to Makefile
4988    o exf:
4989      - multiple modifications of exf_check_range
4990      - unit change in exf_init_runoff from [m/year] to [m/s]
4991    o mdsio:
4992      - i/o-vector change debugLevel from debLevA to debLevB
4993    
4994    checkpoint56b_post (2004/12/01)
4995    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
4996      is called from DO_THE_MODEL_IO
4997      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
4998      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
4999      - clean up PTRACERS_WRITE_TIMEAVE a little
5000    o add another verification experiment that tests both the cfc-pkg and
5001      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
5002      reactive tendencies treated inline with regular timestepping
5003    o testreport previously did a lousy job of comparing small numbers, so
5004      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
5005      implemented in the little c-progam tmp_cmpnum.c which is embedded in
5006      testreport.
5007    o ptracers_monitor: bug fix for MPI
5008    
5009    checkpoint56a_post (2004/11/28)
5010    o GCHEM: finish reorganizating the package
5011      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
5012        (introduces another 3D-array for each passive tracer, but only if
5013        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
5014        gchemTendency is not needed because the timestep is done separately)
5015      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
5016      - GCHEM is now---more or less cleanly---separate from PTRACERS
5017      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
5018        so clear to me how that should be done in a general way.
5019    o CFC: improve formatting of output in CFC_ATMOS
5020    o PTRACERS:
5021      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
5022        that ALL experiments with ptracers enable can be checked. This makes
5023        GCHEM_MONITOR obsolete.
5024      - include a runtime parameter PTRACERS_monitorFreq that defaults to
5025        monitorFreq
5026      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
5027    o add PTRACERS (PTR0[1-5]) to testreport output
5028    o exf_check_range:
5029      * default changed to .TRUE.
5030      * will check values for niter0 if debLevA, every timestep if debLevB
5031      * STOP in exf_check_range if 'out of range'
5032      * range chosen generous to allow for potential extema
5033      TBD: a version with stricter range
5034           permitted range would be runtime parameters
5035    o GMredi:
5036      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
5037      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
5038      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
5039    o GCHEM:
5040      - move call to GCHEM_FORCING_SEP, so that it is now called before
5041        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
5042      - introduced a useGCHEM runtime flag and applied it everywhere.
5043      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
5044        this flag is now only visible within GCHEM-pkg routines.
5045      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
5046        be replaced by a 3D array that is computed before thermodynamics; for
5047        this, the tracer ID iTracer had to be included into the parameter list
5048        of ptracers_forcing
5049      - set up forward_step to call gchem_forcing, that will replace
5050        gchem_forcing_int in ptracers_forcing
5051      - cleaning up
5052    o small cleaning of exch2: remove files that are also in eesupp/src
5053    
5054    checkpoint56 (2004/11/17)
5055    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
5056    o mnc: cleanup "full" files--fixes out-of-memory problem
5057    o ECCO-GODAE
5058      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
5059      * fully merged and updated from SIO code
5060        windstress sign change affects
5061        - exf_inscal_[u/v]stress
5062        - sign of xx_tau[u/v] adjustments
5063        - signs in cost_scat
5064      * ctrl_get_gen: avoid update of tau[u/v] for first few days
5065      * natl_box_adjoint updated and compressed
5066      * 2-level checkpoint switch added
5067        (tested in EXP. 1 of natl_box_adjoint)
5068      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
5069    o SVD
5070      * first complete, non-hacked version for SVD calculations
5071      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
5072        performed via direct access files admtlm_vector.it????
5073        (via ctrl_[un]pack)
5074      * optimcycle is used for ARPACK iteration counter
5075        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
5076      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
5077        and add linear transforms where necessary
5078      * controls are initial/final SST, SSS (can be extended; need to check
5079        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
5080    o mdsio: filename info to both stderr, stdout
5081    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
5082      from sign change
5083    
5084    checkpoint55j_post (2004/11/10)
5085    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
5086      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
5087    o add consistent build directories and .cvsignore files to verification
5088    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
5089    o make all subroutines 30 or less characters in length for certain older
5090      compilers to work (a thorough search only turns up two routines in
5091      pkg/ptracers)
5092    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
5093      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
5094    
5095    checkpoint55i_post (2004/10/28)
5096    o change arrays for total vertical diffusivity (2.D if explicit,
5097      3.D if implicit) ; each ptracer uses its own background value.
5098    o added mnc/NetCDF output capability to ocn_compon_interf
5099      - added bits to verification/cpl_aim+ocn so that it can run on
5100        ITRDA and other clusters without the mpirun "-wd" option
5101    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
5102      configuration
5103    o give MNC the ability to create additional files rather than
5104      exceeding a specified file size limit "MNC_MAX_FILESIZE"
5105      - the default is just less than 2GB which is a practical limit
5106        on many systems
5107    o Compute the non-local term using either KPP vertical diffusivity (=default)
5108       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
5109    
5110    checkpoint55h_post (2004/10/20)
5111    o add verification test "vermix"
5112    o remove all the *_ioinc flags and replace with the single global
5113      outputTypesInclusive flag
5114    o allow to set a vertical profile of vertical diffusivity for T & S
5115    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
5116    o useMNC moved from data.mnc to data.pkg
5117    
5118    checkpoint55g_post (2004/10/14)
5119    o Renaming carbon AD experiments to comply with testreport conventions
5120    o Updating adjoint of Held-Suarez hs94.1x64x5
5121    o Fixing directives for non-ECCO forward_step, after ECCO directives
5122      have been fixed to avoid recomp. of do_oceanic_phys
5123      Works well for global_ocean.90x40x15,
5124      but recomp. issue remains for carbon
5125    o Updating adjoint output for natl_box_adjoint after
5126      pkg/ecco has been modified (see taga c55d_post)
5127    
5128    checkpoint55f_post (2004/10/13)
5129    o rename to timeave_init_fixed
5130    
5131    checkpoint55e_post (2004/10/13)
5132    o some delicate re-shuffle of store directives to avoid one
5133      extra call of do_oceanic_physics
5134      affects ecco_the_main_loop.F, do_oceanic_physics.F
5135      checkpoint_lev1_directives.h
5136    o NB: this may break global_ocean adjoint temporarily,
5137      but it is clear how to fix it. Will do later, need this now.
5138    
5139    checkpoint55d_post (2004/10/11)
5140    o ECCO specific cost function terms (up-to-date with 1x1 runs)
5141    o ecco_cost_weights is modified to 1x1 runs
5142    o modifs to allow observations to be read in as
5143      single file or yearly files
5144    o enable to read exf forcing fields as either
5145      single file or yearly files (flag useExfYearlyFields)
5146    checkpoint55d_pre (2004/10/08)
5147    
5148    o switch between 2-level and 3-level checkpointing
5149    o add ability of MNC to write local and "partial" (eg. 2D slices where
5150      the full 3D field is never actually stored) arrays to NetCDF files
5151      with the correct (that is, the complete multi-dimensional) set of
5152      array indicies
5153      - used in mom_vecinv() to write the diagFreq output
5154      - tested (demonstrated) in verification/aim.5l_cs
5155    o further mnc-ification
5156      - add verification/lab_sea to the list with mnc setups
5157      - fix undefined mnc v-names in cd_code
5158      - add kpp to mnc output (both snapshot and timeave)
5159    o non-hydrostatic code
5160      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
5161        in calc_gw.F
5162      - defaults to viscAh
5163      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
5164        friction or Leith) in non-hydrostatic mode, as long as there is
5165        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
5166    o pkg/cost
5167      extend simple cost functions to treat time mean quantities
5168      (T,U,V) via cost_accumulate_state from cost_tile
5169    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
5170        be 2 times larger than the minimum size the advection scheme requires.
5171        now get a perfect conservation of salt in advect_cs test-exp (updated)
5172    o GGL90 (Gaspar's TKE mixed layer)
5173      - add horizontal diffusion of TKE, requires exchanges in
5174        do_fields_blocking_exchanges, horizontal diffusivity is zero by
5175        default. In OPA there is no horizontal diffusion of TKE but the
5176        mixing coefficients are computed from a horizontal average of TKE of
5177        6 points or so. I think that diffusion has a little more physical
5178        justification.
5179      - clean up ggl90_calc in the hope of reducing memory usage (this hope
5180        was in vain)
5181      - mask tke-variable in ggl90_init
5182    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
5183    o fix biharmonic diffusion on CS-grid.
5184    o more obcs stuff
5185      - added obcs_external_fields_load as an alternative to the EXF-pkg option
5186        for reading boundary values. This routine is called from
5187        obcs_prescribe_read
5188      - updated obcs_check
5189      - changed sponge layer relaxation parameter units for days to seconds
5190      - turned off sponge layer by default
5191      - changed argument list of OBCS_CALC to myTime+deltaTclock
5192      - fixed about 35 bugs in obcs_external_fields_load
5193    
5194    checkpoint55c_post (2004/09/23)
5195    o obcs stuff
5196      - new runtime flags useOBCSprescribe, useOBCSbalance
5197      - re-arranged obcs_calc
5198      - moved exf_getobcs to obcs_prescibe_read
5199        obcs_prescibe_read is called after ORLANSKI stuff
5200        and independent of it (executable can contain all).
5201      - updated obcs_check
5202      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
5203        These may be necessary only if tangential velocities are
5204        prescribed at OB, not sure, needs testing.
5205    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
5206      which simplifies the calls and passes the ifc check-bounds test
5207    
5208    checkpoint55b_post (2004/09/22)
5209    o add a 2D scalar, Z location, exchange_2 routine.
5210    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
5211      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
5212      affects advect_cs results (for the wrong reason): update output.txt
5213    o use a more standard discretization for biharmonic viscosity ;
5214     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
5215      affects results of dome set-up: update output.txt
5216    o fix gad_advection.F (CubedSphere part), back to version 1.23
5217    o fix bug in mom_vi_del2uv.F (CubedSphere part).
5218    
5219    checkpoint55a_post (2004/09/20)
5220    o merged code to
5221      * prescribe/read time-dependent open boundaries
5222        (works in conjunction with exf, cal)
5223      * sponge layer code for open boundaries
5224      * each boundary N/S/E/W now has its own CPP option
5225        (healthy for the adjoint)
5226    
5227    checkpoint55 (2004/09/17)
5228    o up-to-date adjoint of previous breaks
5229      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
5230      - global_ocean_ebm: adjoint still needs fix (TLM ok)
5231      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
5232      - carbon: * remove tr1-related adjoint verification
5233                * add ptracer as control variable
5234    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
5235      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
5236    
5237    checkpoint54f_post (2004/09/16)
5238    o in verification/carbin/ remove experiment related to
5239      ALLOW_PASSIVE_TRACER (array tr1 etc)
5240      code_ad/ input_ad/ results_ad
5241    
5242    o add two new packages
5243      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
5244        + subject to optimization (memory)
5245      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
5246        + subject to reordering (many GOTOs in the original code)
5247        + so far opps is called for every (i,j) point, and then operates in
5248          the vertical; one may want to reorder the scheme in order operate in
5249          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
5250          fields)
5251    o overhaul of IO so that we now have flags for MDSIO and/or MNC
5252      - all verification tests compile and run with linux_ia32_g77
5253      - defaults are compatible with current input files--nothing
5254        should change if you were not previously using MNC
5255      - MNC output has been added in numerous places (eg. timeave)
5256        but there are still a few writes not yet do-able with MNC
5257        (this is in progress)
5258      - flags now allow for either/or/both use of MDSIO and MNC and
5259        documentation will soon follow
5260      - numerous small formatting cleanups for ProTeX
5261    o add version info (via BUILD_INFO.h) to MNC and stdout
5262    
5263    checkpoint54e_post (2004/09/02)
5264    o add two new packages
5265      - pp81 (Packanowski and Philander, 1981), Richardson number and
5266        stratification dependent mixing
5267      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
5268      - these scheme operate in a similar manner as KPP (without ghat, of
5269        course), however there is only one diffusivity that is used for both
5270        temperature and salinity (and passive tracers)
5271    o add offline package
5272    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
5273      provided by Stephanie Dutkiewicz
5274    o genmake2: add ability to search for C compilers and cleanup test output
5275      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
5276    
5277    checkpoint54d_post (2004/07/27)
5278    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
5279    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
5280      leading to additional shift by 5 days each year of integration
5281       (i.e. leading to considerable offset over the years)
5282    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
5283    o start with no AB and no initial filtering (staggerTimeStep):
5284      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
5285    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
5286      (external loading & cpl import/export stay in forward_step.F)
5287    o update coupling interface to work with new staggerTimeStep
5288    o change MDSIO ptracers_pickup.
5289    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
5290    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
5291    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
5292    
5293    checkpoint54c_post (2004/07/18)
5294    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
5295      this affects (truncation error) output.txt of test-exp:
5296       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
5297    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
5298    o change Qnet to always be the net heat flux, (+upward).
5299      affects (truncation error) output of natl_box exp.: updated
5300    o define the max number of passive tracers in PTRACERS_SIZE.h
5301    o start to test mnc routinely in exp0
5302    o add sea-ice loading (sIceLoad) as a new forcing field.
5303    
5304    checkpoint54b_post (2004/07/08)
5305    o add testreport "-j JOBS" option for parallel builds (tested and pretty
5306       impressive on Altix and Opteron systems)
5307    o diagnostics can now write NetCDF files through the mnc package
5308    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
5309    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
5310    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
5311      affects (truncation error) output of lab_sea & natl_box exp.: updated
5312    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
5313    
5314    checkpoint54a_post (2004/07/06)
5315    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
5316    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
5317    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
5318    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
5319      + internal_wave (shift in writing cg2d_ini_res)
5320    checkpoint54a_pre (2004/07/05)
5321    
5322    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
5323      - modified verification/lab_sea and natl_box_adjoint accordingly
5324    
5325    checkpoint54 (2004/07/02)
5326    checkpoint53g_post (2004/07/02)
5327    o prepare splitting of thermodynamics: store convect.counter in common block
5328    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
5329      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
5330    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
5331    o new parameter "nShapS": allow to treat differently S from T (nShapT)
5332    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
5333    o restore adjointability
5334    
5335    checkpoint53f_post (2004/06/25)
5336    o modifications that affect AIM experiment results (update output.txt):
5337      - no advection of S at top interface Nr (pkg/generic_advdiff)
5338      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
5339    o AIM pkg:
5340      - include stability function into surf.Flux derivative relative to Tsurf
5341      - calculate clear-sky radiation & surface temp. change (for diagnostics)
5342    
5343    checkpoint53e_post
5344    o merged cylindrical coord configuration
5345    o added rotating_tank experiment
5346    checkpoint53e_pre
5347    
5348    checkpoint53d_post (2004/06/14)
5349    o faulks upgraded: re-generate output.txt that have changed:
5350       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
5351    o Added Bryan and Lewis, 1979, vertical diffusivity profile
5352    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
5353    o added Sadourny discretization of Coriolis
5354      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
5355      - re-enabled use of omega3 (useAbsVorticity)
5356    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
5357      vector-invariant equations
5358      - note: does *NOT* yet use same variable visc. for no-slip BC's.
5359    o recoded the lateral boundary conditions for non-hydrostatic w, this time
5360      hopefully without new bugs
5361      - still to do: biharmonic friction for non-hydrostatic w
5362    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
5363    o regenerated output for global_ocean_ebm (using -ieee)
5364    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
5365      of mom_common/
5366      - simple re-arrangement of instructions within computing loop
5367    checkpoint53d_pre (2004/05/21)
5368    
5369    checkpoint53c_post (2004/05/21)
5370    o new version of coupler for AIM+thSIce and Ocean models
5371     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
5372     - land: change Evaporation of snow
5373     - aim with thSIce: fix bug in snow-precip.
5374    o changes to calc_gw.F
5375     - bug fix for w^2 term near the bottom boundary
5376     - (hopefully) improve the lateral slip boundary condtions for use with
5377        partial/looped cells
5378      - because the bug fix changes two verification experiments anyway (exp5
5379        and plume on slope), change the lateral boundary condition from half slip
5380        to the value of no_slip_sides
5381    o ebm package wasnt quite up to the parallel task. Fixed that.
5382    o Adjoint of EBM package + verification
5383      * TLM OK
5384      * ADM not sufficient accuracy yet (needs further testing)
5385    
5386    checkpoint53b_post (2004/05/14)
5387    o Commiting new energy balance model to repository
5388      * package is pkg/ebm
5389      * verif. is verification/global_ocean_ebm
5390      * references are in ebm_driver.F
5391    C      * X. Wang, P. Stone and J. Marotzke, 1999:
5392    C        Global thermohaline circulation. Part I:
5393    C        Sensitivity to atmospheric moisture transport.
5394    C        J. Climate 12(1), 71-82
5395    C      * X. Wang, P. Stone and J. Marotzke, 1999:
5396    C        Global thermohaline circulation. Part II:
5397    C        Sensitivity with interactive transport.
5398    C        J. Climate 12(1), 83-91
5399    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
5400    C        Destabilization of the thermohaline circulation
5401    C        by atmospheric eddy transports.
5402    C        J. Climate 7(12), 1870-1882
5403    o Will need long integration testing.
5404    checkpoint53b_pre (2004/05/14)
5405    
5406    o created pkg/mom_common in preparation for variable viscosity code
5407    o renamed and split ini_mnc_io
5408    o pkg/land: only liquid water can diffuse or run-off
5409    o AIM using land: soil wetness availability account for snow
5410    o added printMapIncludesZeros to EEPARMS namelist
5411    
5412    checkpoint53a_post (2004/05/11)
5413    o restore TAMC compatiility for exf_constants.h
5414      (no usage of _d in .h)
5415    o Additional storing in KPP in an attempt to fix
5416      TAMC problem with adjoint of KPP code.
5417      (no success...)
5418      Identical code works fine with TAF.
5419    o Fixed verification/natl_box_adjoint experiments.
5420      Initial conditions for Experiments 4 and 5 are now
5421      set to "SEAICE_initialHEFF=0", which is more reasonable,
5422      and hence gives results closer to that of Experiment 2.
5423      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
5424    
5425    checkpoint53 (2004/05/06)
5426    o stable checkpoint with up to date adjoint
5427      TLM tests only run for 1st grdchk at the moment. Its unclear if
5428      this is a code problem or a problem with resetting code for g_
5429      variables that is being autogenerated wrong.
5430      Otherwise:
5431       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
5432       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
5433         are both still in chaos following their security messes.
5434    
5435    checkpoint52n_post (2004/05/06)
5436    o various build (mostly genmake2) changes including:
5437      - ability to build/run more easily within Cygwin and MacOS X
5438      - more complicated Makefiles with a stronger dependence on Gnu Make
5439    o pkg/seaice modifications
5440      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
5441        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
5442        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
5443      - changed proxy for geostrophic velocity and updated
5444        verification/lab_sea/results/* accordingly
5445      - removed ADI dynamic solver from pkg/seaice
5446      - replaced all occurrences of 1/CSTICE or 1/CSUICE
5447        they caused a segmentation fault under certain circumstances
5448      - removed unused field WATR
5449    o bug fix in exf-package:
5450      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
5451         now reflect that.
5452    o small fixes in the cal-package:
5453      - set reference date to first of January for the 'model'-calendar
5454      - failing of cal_CheckDate in cal_FullDate now actually results in a
5455        warning
5456    o small modifications in exf-package to increase flexibility:
5457      - change climtempfreeze from a constant to a runtime parameter that
5458        is specified in data.exf_clim (default = -1.9)
5459      - introduce runtime parameter windstressmax (default = 2.0) that is
5460        specified in data.exf
5461    o fix in pkg/thsice:
5462      - update Evap (Tsf changes) to be consistent with Latent heat flux
5463      - maintain snow precipitation unchanged (even if Tsf >=0).
5464     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
5465    
5466    checkpoint52m_post (2004/04/18)
5467    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
5468      this does not change any of the results, because myIter=0 in swfrac always
5469      lead to jwtype=2 (the default anyway), but the call makes little sense
5470      as a default
5471    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
5472    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
5473      atmospheric model (AIM) to use it ; add a "slab ocean" component.
5474    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
5475    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
5476    o extending useSingleCpuIO option to work with new exch2 I/O format
5477      - old-style, missing-tile I/O is still accessible by defining CPP
5478        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
5479    o monitor package can write to NetCDF files and/or STDOUT
5480    o fix re-definition bug in MNC_GRID_INIT_ALL()
5481    o doc/api_reference added
5482      - a framework for building an API Reference Manual using all
5483        the "protex" comments embedded in the code
5484      - see pkg/generic_advdiff, pkg/mnc for examples
5485    o MNC:
5486      - make myThid the last argument for all subroutines
5487      - new default for the grid files: NO halos
5488      - add useMNC and other run-time flags
5489      - separate per-file-group handling of the unlimited dimension
5490      - early initialization of MNC w/ flags read at the eeboot stage
5491        and lookup tables set in initialize_fixed
5492      - write all MNC output to a freshly-created directory
5493    o thermodynamics sea-ice (thsice) is now tested with testreport.
5494    o test exp. advect_cs: use the standard cs32 grid ; update output.
5495    o Added functionality to grdchk:
5496      pick global i,j,k position (or nearest wet) where to perform check.
5497    
5498    checkpoint52l_post (2004/03/11)
5499    o new land formulation:
5500      a) use ground enthalpy as prognostic variable to ensure exact
5501         energy conservation.
5502      b) account for water temperature and for latent heat of freezing
5503         in all processes (rain, run-off, ground storage)
5504      c) compute surface and ground temperature implicitly.
5505    o aim_v23 modification for new land model:
5506      a) Treat separately land / ocean / sea-ice surface fluxes
5507         to allow implicit computation of land & sea-ice surface temp.
5508      b) add snow precipitation.
5509    checkpoint52l_pre (2004/03/11)
5510    
5511    o fix problem (when 1 tile is empty) in min/max monitor.
5512    o fix bug in timeAve (u,vZetatave in common block)
5513    o no restoring terms under ice for pkg/seaice
5514    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
5515    o bug fix for pkg/seaice pickups
5516    o change MNC call locations and add coordinate attributes
5517    o mask vorticity at the corner ; affects global_ocean.cs output
5518    o fix ini_curvilinear_grid ; test CS experiments with mpi
5519    o aim.5l_cs: modify sea-ice fraction input file ; update output
5520    o exf: Adding simple range check routine for exf fields after read
5521    
5522    checkpoint52k_post (2004/02/23)
5523    o removed top-level directory "diags"
5524      - we migrated these functions to pkg/timeave a long time ago
5525    o fixed bug introduced in pkg/monitor
5526    o accuracy ctrlprec = 32 insuffient for gradient checks using
5527      averaged fields (I/O via cost_averages)
5528      -> use ctrl.h in active_file*.F to control I/O precision.
5529    o paramter list of CALL ADTHE_MAIN_LOOP
5530    o added initial do_the_model_io to ecco
5531    o set all ...Freq to zero after cost_final
5532      taveFreq, dumpFreq, pChkptFreq
5533    o MAIN and ECCO differentiability restored
5534    
5535    checkpoint52j_post (2004/02/18)
5536    o fix nchklev in tamc.h for global_ocean...
5537    o Bringing flow and store directives up-to-date
5538    o Really weird thing!
5539      call do_the_model_io from the_main_loop with parameters
5540      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
5541      TAF places a faulty re-call of initialise_varia
5542      after cost_final call which should not be there!
5543    checkpoint52j_pre (2004/02/03)
5544    
5545    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
5546      error messages
5547    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
5548    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
5549      debug output
5550    o modfied mdsio_writefield.F to handle non-global files under exch2
5551    o update AIM Cubed-Sphere exp (aim.5l_cs):
5552      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
5553    o update AIM Equatorial Channel exp:
5554      use standard aim_v23 pkg and change the SST fields to be more realistic.
5555    o globalFile now works with exch2
5556    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
5557      mon_vort3.F to make exch2 friendly with >1 tile per cube face
5558    o limit timeave output for hi-res integrations
5559    
5560    checkpoint52i_post (2004/01/21)
5561    o removed CPP_EEOPTIONS.h from verification/*/code
5562    o updated the tiling for global_ocean_pressure
5563    checkpoint52i_pre (2004/01/20)
5564    
5565    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
5566      the old pkg/aim).
5567    
5568    checkpoint52h_pre (2004/01/20)
5569    o shortened offending lines in exch2_send_rx?.template
5570    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
5571    o genmake2: add build & execute test for NetCDF code
5572    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
5573      old grid files, moved CPP_EEMACROS.h to pkg/exch2
5574    o added useSingleCPUIO flag to monitor.F and mon_out.F
5575    o added temporary hack for sea-ice dynamics on the cube:
5576      metric terms are ignored and it is assumed that
5577      there is no sea-ice on cube faces 1, 2, 4, and 5.
5578    
5579    checkpoint52f_post (2004/01/09)
5580    o added exch2 cube routines to pkg/exch2
5581    o modified hs94.cs-32x32x5 to use it
5582    o added new grid files to hs94.cs-32x32x5
5583    checkpoint52f_pre (2004/01/07)
5584    
5585    checkpoint52e_post (2004/01/07)
5586    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
5587      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
5588    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
5589      to work with implicit vertical advection and AB ;
5590    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
5591    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
5592     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
5593    checkpoint52e_pre (2004/01/02)
5594    
5595    o fix bug in impldiff when Nr=1 or Nr=2.
5596    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
5597    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
5598    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
5599      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
5600    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
5601    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
5602    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
5603    
5604    checkpoint52d_post (2003/12/16)
5605    o re-tiled many expts to allow comparison in multi-processor mode
5606      - updated output accordingly
5607      - changed hs94.128x64x5 to use intial T from file rather than use the
5608        random number generator
5609    o add infrastructure in model routines for fizhi and gridalt packages
5610    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
5611    o changes to permit hi-res, cubed-sphere, configuration
5612      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
5613      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
5614      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
5615        of surface winds for the cube
5616      (A verification experiment, based on global_ocean.cs32x15, but with
5617       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
5618       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
5619       complete with example surface forcing files and matlab scripts to look
5620       at the output and compare it with that of global_ocean.cs32x15.)
5621    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
5622       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
5623       to conform to the common rule.
5624    o check-in the first version of the coupler + interfaces for multi-components
5625       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
5626       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
5627       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
5628       - ocean and atmos. share the same horizontal grid (no interpolation).
5629       - exchanges between component and coupler is done in forward_step
5630    o new verification experiment, cpl_aim+ocn:
5631       coupled ocean - AIM atmosphere on cs32 grid.
5632    
5633    checkpoint52d_pre (2003/12/06)
5634    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
5635    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
5636    
5637    checkpoint52c_post (2003/11/25)
5638    o Fixing OPTIONS files for use of exf:
5639      - ALLOW_ECCO not needed
5640      - ECCO_CPPOPTIONS.h should not be included from
5641        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
5642        as has been the case in the past
5643      - All cal/exf related options are currently set in
5644        single header file. Should remain so until we
5645        agree on a consistent new policy.
5646    o Removed all CPP options for cal package.
5647      cal has no more CPP options.
5648    o modified STOREs in GAD_ADVECTION
5649    o corrected key comp. for passkey
5650    
5651    checkpoint52b_post (2003/11/23)
5652    o new version: "thsice" of thermodynamic sea-ice pkg:
5653     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
5654     - modify fluxes but do not change theta directly;
5655     - light cleaning of bulk_force pkg (still needed with thsice).
5656     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
5657       + output_thsice.txt to test thsice & bulk_force pkgs.
5658    o put back grid & coriolis monitor output.
5659    checkpoint52b_pre (2003/11/23)
5660    
5661    o call "do_the_model_io" at the beginning (=> dump initial state)
5662    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
5663    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
5664      (need info on NUMBER_OF_PTRACERS)
5665    o missing PTRACERS headers in some routines
5666    o default tamc.h in pkg/autodiff supposed to crash
5667      to ensure proper customization
5668    
5669    checkpoint52a_post (2003/11/17)
5670    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
5671      - moved surfaceTendencyTice from pkg/seaice to main code
5672      - subroutine FREEZE_SURFACE now limits only surface temperature
5673        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
5674        => new output.txt for global_ocean.cs32x15 & global_with_exf
5675      - keep the old version of FREEZE for backward compatibility;
5676        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
5677      - corresponding modifs for TAF directives
5678    o added surface flux output variables to TIMEAVE_STATVARS
5679    o time-averaged output for pkg/ptracers
5680    o fix problem with ECCO-related divided adjoint
5681      snapshot file was missing some ad-variables,
5682      but no warning issued by TAF
5683    
5684    checkpoint52a_pre (2003/11/12)
5685    o some bug fixes for #undef REAL4_IS_SLOW
5686    
5687    checkpoint52 = ecco_c52_e35
5688    o after testing adjoints of checkpoint51u_post
5689    
5690    checkpoint51u_post (2003/11/06)
5691    o this is the post-merge tag of the ecco-branch
5692      (needs another clean checkout and re-testing)
5693    o various natl_box_adjoint configs and results
5694      but no input fields
5695    o obcs adjoint not yet merged!
5696    o adding ECCO global 1x1 and 2x2 degree configs
5697    o updated/extended some store directives for seaice
5698    o pkg/ecco now containes ecco-specific part of cost function
5699    o top level routines the_main_loop, forward_step
5700      supersede those in model/src/
5701      previous input data.cost now in data.ecco
5702      (new namelist ecco_cost_nml)
5703    o in ctrl/ cleaned some cross-dependencies and updated CPP options
5704    
5705    checkpoint51t_post (2003/11/04)
5706    o this is the pre-merge tag of the ecco-branch
5707    
5708    checkpoint51s_post (2003/11/04)
5709    o cleanup: removed various obsolete #define-s
5710    o pkg/grdchk
5711      - renamed 'ph-grd 3' to 'grad-res'
5712      - merged from ecco-branch
5713        (remaining bug fixes for obcs gradient checks)
5714      - additional high-precision output for testreport
5715        (grep for 'precision_grdchk_result')
5716    
5717    checkpoint51r_post (2003/11/03)
5718    o cleaned up or removed CPP_OPTIONS.h files
5719    o updated results for some of the tests to reflect the new
5720      optfiles (-ieee: -O0 instead of -O3)
5721    
5722    checkpoint51q_post (2003/10/30)
5723    o cd_code:
5724      - moved cd_scheme.F -> cd_code_scheme.F
5725      - separate read_checkpoint from cd_code_ini_vars.F
5726      - separated cd_code part from write_checkpoint
5727      - updated AD_SOURCE, generated .flow
5728      - added CD_CODE_VARS.h to the_main_loop
5729      - Moving cd_code specific store dir.s to pkg/cd_code
5730    o ctrl package totally restructured
5731      - pack/unpack now optional and decoupled from
5732        xx_/adxx_ I/O
5733      - ctrl_pack/unpack cleaned
5734        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
5735      - confined inclusion of AD_CONFIG.h to where necessary.
5736    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
5737    
5738    checkpoint51p_post (2003/10/30)
5739    o create initial cd_code package
5740      - WARNING: the initialization of fields within packages
5741        is broken because INI_FIELDS (where READ_CHECKPOINT is
5742        called) is called *before* PACKAGES_INIT_VARIABLES.
5743        This seems to be backwards since
5744        1) its important to initially zero the entire field including
5745           the "halo" region
5746        2) zeroing needs to be done *before* reading pickup info
5747           and the pickup call might or might not happen in any
5748           particular run
5749      - this needs an overhaul for R2
5750    o cleanup verification/*/code/GMREDI_OPTIONS.h
5751    o cleanup testreport
5752    
5753    checkpoint51o_post (2003/10/27)
5754    o bringing AD-related verif's up to date with genmake2
5755      - carbon/
5756      - global_ocean.90x40x15/
5757      - hs.94.1x64x5/
5758      - (front_relax/ )
5759    o (more) consistent directory structure for AD-related verif.'s
5760    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
5761    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
5762    o bug fix in find_alpha.F for MDJWF:
5763      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
5764        change rho -> rho-rhoConst
5765      - replace call find_rho to find_rhonum
5766    o initialisation of rFlx extended to full array (required by TAF)
5767      and shifted to thermodynamics
5768    o removed PTRACERS.h in ptracers routine
5769    o added surfacetendencyPtr to S/R parameter list pracers_forcing
5770    o Correcting initialisations for fVerU, fVerV.
5771    o helping TAF to recognize dependency on kUp for
5772      fVerU, fVerV
5773    o Replacing delZ by delR in pkg/ctrl/
5774    checkpoint51o_pre (2003/10/24)
5775    
5776    o undid all of cp51 pending some cleanups and discussion
5777    o added the [#include "AD_CONFIG.h"] statement to all files that need
5778       it for adjoint/tl #defines
5779     o re-worked the build logic in genmake2 to support AD_CONFIG.h
5780     o removed tools/genmake since it no longer works
5781    
5782    checkpoint51n_post (2003/10/23)
5783    o modifications to make FREEZE flux visible to pkg/kpp
5784      - moved surfaceTendencyTice from pkg/seaice to main code
5785      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
5786      - subroutine FREEZE now limits only surface temperature
5787        (this means new output.txt for global_ocean.90x40x15,
5788         global_ocean.cs32x15, and global_with_exf)
5789    o added surface flux output variables to TIMEAVE_STATVARS
5790    
5791    checkpoint51n_pre (2003/10/23)
5792    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
5793    o added [#include "AD_CONFIG.h"] to all files that use the following
5794      defines:
5795      - ALLOW_ADJOINT_RUN
5796      - ALLOW_TANGENTLINEAR_RUN
5797      - ALLOW_ECCO_OPTIMIZATION
5798    
5799    checkpoint51m_post (2003/10/21)
5800  o incorporating changes to get TAMC/TAF working in genmake2  o incorporating changes to get TAMC/TAF working in genmake2
5801    - added new TAMC/TAF targets to the Makefile    - added new TAMC/TAF targets to the Makefile
5802    - various cleanups related to package handling    - various cleanups related to package handling
5803      - these changes should have no impact on the forward model
5804    
5805  checkpoint51l_post  checkpoint51l_post (2003/10/20)
5806  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations  o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
5807   - faster algorithm for cal_addtime.F   - faster algorithm for cal_addtime.F
5808   - higher precision arithmetic, where needed   - higher precision arithmetic, where needed
5809   - pkg/exf *startdate variables changed from calendar date to   - pkg/exf *startdate variables changed from calendar date to
5810     model integration time     model integration time
5811    
5812  checkpoint51l_pre  checkpoint51l_pre (2003/10/17)
5813  o add salt flux to forcing fields (used when salty sea-ice forms or melts)  o add salt flux to forcing fields (used when salty sea-ice forms or melts)
5814  o enable to apply restoring on S & T only in a latitude band.  o enable to apply restoring on S & T only in a latitude band.
5815  o update output (external_forcing_surf modif. change truncation errors)  o update output (external_forcing_surf modif. change truncation errors)
5816     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box     global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
5817    
5818  checkpoint51k_post  checkpoint51k_post (2003/10/16)
5819  o change default to: useNHMTerms=.FALSE.  o change default to: useNHMTerms=.FALSE.
5820   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):   - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
5821     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5     adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
# Line 34  o added an include barrier to the defaul Line 5829  o added an include barrier to the defaul
5829    removed the #include "PACKAGES_CONFIG.h" from it    removed the #include "PACKAGES_CONFIG.h" from it
5830  o fix a bug in mom_fluxform (from chk51j_post)  o fix a bug in mom_fluxform (from chk51j_post)
5831    
5832  checkpoint51j_post  checkpoint51j_post (2003/10/10)
5833  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/  o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
5834  o adjusted some flow directives (dynamics, thermodynamics)  o adjusted some flow directives (dynamics, thermodynamics)
5835  o added cubed-sphere case to test cost function  o added cubed-sphere case to test cost function
# Line 48  o Moving pkg-specific flow directives to Line 5843  o Moving pkg-specific flow directives to
5843         - pkg_ad_diff.list         - pkg_ad_diff.list
5844         - pkg_ad_check_lev?_dir.h         - pkg_ad_check_lev?_dir.h
5845    
5846  checkpoint51i_post  checkpoint51i_post (2003/10/09)
5847  o merge of the branch-genmake2  o merge of the branch-genmake2
5848    - knowingly breaks the older genmake    - knowingly breaks the older genmake
5849    - automatic generation of all ALLOW_${PKG_NAME} defines    - automatic generation of all ALLOW_${PKG_NAME} defines
5850    - new testreport supersedes older testscript    - new testreport supersedes older testscript
5851  o large number of package inclusion and header cleanups  o large number of package inclusion and header cleanups
5852  checkpoint51i_pre  checkpoint51i_pre (2003/10/08)
5853    
5854  o new output for adjoin of global ocean vector invariant  o new output for adjoin of global ocean vector invariant
5855  o fix for checkpoint of thermodynamic seaice and bulk_force  o fix for checkpoint of thermodynamic seaice and bulk_force
# Line 66  o modify gchem pkg to be more versatile Line 5861  o modify gchem pkg to be more versatile
5861  o modifications to clean up dic pkg  o modifications to clean up dic pkg
5862  o add pkg/cfc  o add pkg/cfc
5863    
5864  checkpoint51g_post  checkpoint51g_post (2003/10/02)
5865  o provide links for ARPACK and ADM*TLM  o provide links for ARPACK and ADM*TLM
5866  o start removing verification/vero/  o start removing verification/vero/
5867  o update AD-related stuff  o update AD-related stuff
# Line 74  o update AD-related stuff Line 5869  o update AD-related stuff
5869  o adding to verification/global_ocean.90x40x15/ adjoint of  o adding to verification/global_ocean.90x40x15/ adjoint of
5870    vector invariant setup    vector invariant setup
5871    
5872  checkpoint51f_post  checkpoint51f_post (2003/10/02)
5873  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)  o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
5874  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation  o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
5875    of tracer Green's fucntions for ocean inversion project.    of tracer Green's fucntions for ocean inversion project.
5876    
5877  checkpoint51f_pre  checkpoint51f_pre (2003/08/07)
5878  o Added on-the-fly spatial interpolation capability  o Added on-the-fly spatial interpolation capability
5879      "USE_EXF_INTERPOLATION" to pkg/exf.      "USE_EXF_INTERPOLATION" to pkg/exf.
5880    - This is a temporary Cartesian-grid hack until    - This is a temporary Cartesian-grid hack until
# Line 91  o Bug fix to pkg/ptracers, pkg/generic_a Line 5886  o Bug fix to pkg/ptracers, pkg/generic_a
5886      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer      and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
5887      non-local transport term.      non-local transport term.
5888    
5889  checkpoint51e_post  checkpoint51e_post (2003/08/03)
5890  o pkg/mom_vecinv:  o pkg/mom_vecinv:
5891    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)    - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
5892    - add time-ave diagnostic of vorticity advection.    - add time-ave diagnostic of vorticity advection.
# Line 101  o atmospheric geopotential: - include wa Line 5896  o atmospheric geopotential: - include wa
5896  o land pkg: read initial state from files.  o land pkg: read initial state from files.
5897  o AIM : add stratospheric drag in the upper level  o AIM : add stratospheric drag in the upper level
5898    
5899  checkpoint51d_post  checkpoint51d_post (2003/07/18)
5900  o change function ILNBLNK (=> last non-blank char.) to return zero  o change function ILNBLNK (=> last non-blank char.) to return zero
5901    (instead of the string length) when the string. char is empty    (instead of the string length) when the string. char is empty
5902  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)  o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
# Line 114  o Use cluster local disks for purely loc Line 5909  o Use cluster local disks for purely loc
5909    - new active_file_loc... and mdsio_..._loc routines    - new active_file_loc... and mdsio_..._loc routines
5910    - affected packages: autodiff, ctrl, grdchk, mdsio    - affected packages: autodiff, ctrl, grdchk, mdsio
5911    
5912  checkpoint51c_post  checkpoint51c_post (2003/07/08)
5913  o introducing integer flag debugLevel  o introducing integer flag debugLevel
5914    - debLevZero: suppress all output    - debLevZero: suppress all output
5915    - debLevA: standard    - debLevA: standard
# Line 137  o added verification for adjoint with pt Line 5932  o added verification for adjoint with pt
5932    - checked tapelev/comlev recomputations: OK    - checked tapelev/comlev recomputations: OK
5933  <<<checkpoint51b_pre  <<<checkpoint51b_pre
5934    
5935  checkpoint51a_post  checkpoint51a_post (2003/06/25)
5936  o added code for biogeochemistry package  o added code for biogeochemistry package
5937    - new pkgs: dic, gchem    - new pkgs: dic, gchem
5938    - new subroutine in ptracers    - new subroutine in ptracers
5939  o modify code for biogeo packages  o modify code for biogeo packages
5940    - in model/src and pkg/ptracers    - in model/src and pkg/ptracers
5941    
5942  checkpoint51  checkpoint51 (2003/06/24)
5943  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN  o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
5944    - autodiff, ctrl, exf, grdchk, seaice    - autodiff, ctrl, exf, grdchk, seaice
5945    kept separate packages    kept separate packages
# Line 152  o merged improved packages from ecco-bra Line 5947  o merged improved packages from ecco-bra
5947  o updating verification/internal_wave, verification/lab_sea  o updating verification/internal_wave, verification/lab_sea
5948    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)    (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
5949    
5950  checkpoint50i_post  checkpoint50i_post (2003/06/23)
5951  o Preparing next differentiable checkpoint and sync  o Preparing next differentiable checkpoint and sync
5952    of MAIN vs. ecco-branch    of MAIN vs. ecco-branch
5953    - 1st step: this one is differentiable    - 1st step: this one is differentiable
5954    - 2nd step: next(! not this) checkpoint will have updated packages    - 2nd step: next(! not this) checkpoint will have updated packages
5955                from ecco-branch)                from ecco-branch)
5956    
5957  checkpoint50h_post  checkpoint50h_post (2003/06/20)
5958  o new package "land": provide surface BC for AIM.  o new package "land": provide surface BC for AIM.
5959  o pkg/ptracers: apply exchange to all tracers after reading a pickup.  o pkg/ptracers: apply exchange to all tracers after reading a pickup.
5960  o AIM: use true log-P extrapolation for near surface temp (= as in  o AIM: use true log-P extrapolation for near surface temp (= as in
# Line 168  o New variable in PARM03 for more flexib Line 5963  o New variable in PARM03 for more flexib
5963  o somewhat cleaned package initialisation sequence for  o somewhat cleaned package initialisation sequence for
5964    ctrl/ cost/ ecco/ in packages_... routines    ctrl/ cost/ ecco/ in packages_... routines
5965    
5966  checkpoint50g_post  checkpoint50g_post (2003/05/23)
5967  o merged with release1_p17 (pkg/seaice and verification/lab_sea)  o merged with release1_p17 (pkg/seaice and verification/lab_sea)
5968    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics    - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
5969    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and    - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
5970      made the default because of faster convergence than ADI      made the default because of faster convergence than ADI
5971    
5972  checkpoint50f_post  checkpoint50f_post (2003/05/23)
5973  o exf totally restructured  o exf totally restructured
5974    - replaced all exf_set_ routines by one generic exf_set_gen.F    - replaced all exf_set_ routines by one generic exf_set_gen.F
5975      and made sure it's still differentiable      and made sure it's still differentiable
# Line 182  o exf totally restructured Line 5977  o exf totally restructured
5977    - exf_inscal_/exf_outscal_ suffixes consistent with field names    - exf_inscal_/exf_outscal_ suffixes consistent with field names
5978    - updated adjoint/makefile and relevant verif. accordingly    - updated adjoint/makefile and relevant verif. accordingly
5979    
5980  checkpoint50f_pre  checkpoint50f_pre (2003/05/23)
5981   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;   o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
5982        + change Evap over land. (update aim.5l_cs output)        + change Evap over land. (update aim.5l_cs output)
5983   o added missing .cvsignores and made uniform across expts   o added missing .cvsignores and made uniform across expts
# Line 192  checkpoint50f_pre Line 5987  checkpoint50f_pre
5987   o new fn in pkg/monitor to stop model if solution grows too big   o new fn in pkg/monitor to stop model if solution grows too big
5988   o removed lots of single quotes from comments   o removed lots of single quotes from comments
5989    
5990  checkpoint50e_post  checkpoint50e_post (2003/05/14)
5991  o make KPP work with PTRACERS  o make KPP work with PTRACERS
5992   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is   - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
5993     nearly a copy of kpp_transport_s     nearly a copy of kpp_transport_s
5994   - there is no analogue to SurfaceTendencyS, so I have to use   - there is no analogue to SurfaceTendencyS, so I have to use
5995     gPtr(of the surface layer) instead     gPtr(of the surface layer) instead
5996  o add a new platform SunFire+mpi (SunFire 15000) to genmake  o add a new platform SunFire+mpi (SunFire 15000) to genmake
5997  checkpoint50e_pre  checkpoint50e_pre (2003/05/13)
5998    
5999  checkpoint50d_post  checkpoint50d_post (2003/05/13)
6000  o change kpp output from multiple-record state files to single-record state  o change kpp output from multiple-record state files to single-record state
6001    files analogous to write_state.F    files analogous to write_state.F
6002  o reduce the output frequency of cg3d-related stuff to the monitor frequency,  o reduce the output frequency of cg3d-related stuff to the monitor frequency,
6003    analogous to the cg2d-related output.    analogous to the cg2d-related output.
6004  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,  o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
6005    so that writing to internal file fn (with length 512) fails.    so that writing to internal file fn (with length 512) fails.
6006  checkpoint50d_pre  checkpoint50d_pre (2003/05/12)
6007    
6008  checkpoint50c_post  checkpoint50c_post (2003/05/12)
6009  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)  o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
6010  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.  o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
6011  o add time-average diagnostic of U*V and vertical diffusive flux for theta.  o add time-average diagnostic of U*V and vertical diffusive flux for theta.
6012  o bug fixed in convective adjustment diagnostic (multi-tile set-up).  o bug fixed in convective adjustment diagnostic (multi-tile set-up).
6013  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.  o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
6014    
6015  checkpoint50c_pre  checkpoint50c_pre (2003/04/30)
6016  Merging from release1_p13:  Merging from release1_p13:
6017  o bug fix for pkg/seaice dynamic solver  o bug fix for pkg/seaice dynamic solver
6018  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
6019    
6020  checkpoint50b_post  checkpoint50b_post (2003/04/17)
6021  o store u*,v* in gU,V instead of in guNm1,gvNm1  o store u*,v* in gU,V instead of in guNm1,gvNm1
6022  o in order to put the momForcing out of the Adams-Bashforth:  o in order to put the momForcing out of the Adams-Bashforth:
6023    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv    move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
# Line 231  o new flag "useCDscheme" (default=F); re Line 6026  o new flag "useCDscheme" (default=F); re
6026  o re-generate output for highly sensitive test-exp:  o re-generate output for highly sensitive test-exp:
6027     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box     global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
6028    
6029  checkpoint50b_pre  checkpoint50b_pre (2003/04/17)
6030  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)  o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
6031  o corrected CPP option mismatch in exf_Bulk... functions for case  o corrected CPP option mismatch in exf_Bulk... functions for case
6032    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP    #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
6033    
6034  checkpoint50a_post  checkpoint50a_post (2003/03/21)
6035  o Bug fix for merging between c50 and KPP.  o Bug fix for merging between c50 and KPP.
6036    ikey was passed from thermodynamics to kpp_calc via    ikey was passed from thermodynamics to kpp_calc via
6037    common block rather than being recomputed in kpp_calc,    common block rather than being recomputed in kpp_calc,
6038    in contradiction with new key itdkey.    in contradiction with new key itdkey.
6039    New key ikppkey created, and tamc.h headers updated.    New key ikppkey created, and tamc.h headers updated.
6040    
6041  checkpoint50  checkpoint50 (2003/03/08)
6042  - 2nd step of merge with ecco-branch:  - 2nd step of merge with ecco-branch:
6043    merge changes in ecco-branch back into main trunk    merge changes in ecco-branch back into main trunk
6044  - bug fix in find_alpha  - bug fix in find_alpha
# Line 251  checkpoint50 Line 6046  checkpoint50
6046  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC  - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
6047  - merged some sliced AD support routines  - merged some sliced AD support routines
6048    
6049  checkpoint49  checkpoint49 (2003/03/06)
6050  merged from ecco-branch:  merged from ecco-branch:
6051  o exf:  o exf:
6052    - Enable initialisation of forcing fields to constant    - Enable initialisation of forcing fields to constant
# Line 289  o DIVA: Line 6084  o DIVA:
6084    (see MITgcm manual).    (see MITgcm manual).
6085  o cal: synchronized between MAIN and ecco-branch  o cal: synchronized between MAIN and ecco-branch
6086    
6087  checkpoint48i_post  checkpoint48i_post (2003/03/05)
6088  o Changes to restore differentiability of code w.r.t. previous tag  o Changes to restore differentiability of code w.r.t. previous tag
6089    (mostly adding new routines to make list and replacing    (mostly adding new routines to make list and replacing
6090    pressure by totPhiHyd).    pressure by totPhiHyd).
# Line 307  o Modif. for DIVA: Line 6102  o Modif. for DIVA:
6102    tbar, sbar, psbar, which should not be reinitialised;    tbar, sbar, psbar, which should not be reinitialised;
6103    only relevant for ecco-branch)    only relevant for ecco-branch)
6104    
6105  checkpoint48h_post  checkpoint48h_post (2003/02/28)
6106  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd  o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
6107  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F  o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
6108  o Added SEAICE_initialHEFF to pkg/seaice  o Added SEAICE_initialHEFF to pkg/seaice
6109  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT  o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
6110    
6111  checkpoint48g_post  checkpoint48g_post (2003/02/18)
6112  --- EOS:  --- EOS:
6113  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF  o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
6114    store total Potential in totPhyHyd for diagnostics & EOS.    store total Potential in totPhyHyd for diagnostics & EOS.
# Line 327  o accurate phiHyd when using interface-W Line 6122  o accurate phiHyd when using interface-W
6122   ( changes results of ideal_2D_oce )   ( changes results of ideal_2D_oce )
6123  o includes r* 2nd term in potential gradient.  o includes r* 2nd term in potential gradient.
6124    
6125  checkpoint48f_post  checkpoint48f_post (2003/02/18)
6126  Merging from release1_p12:  Merging from release1_p12:
6127  o Modifications for using pkg/exf with pkg/seaice  o Modifications for using pkg/exf with pkg/seaice
6128    - improved description of the various forcing configurations    - improved description of the various forcing configurations
# Line 355  o pkg/seaice: Line 6150  o pkg/seaice:
6150    - adjoint-friendly modifications    - adjoint-friendly modifications
6151    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F    - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
6152    
6153  checkpoint48e_post  checkpoint48e_post (2003/02/12)
6154  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)  o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
6155  o dynamics: change definition of computational domain & adapt mom_fluxform  o dynamics: change definition of computational domain & adapt mom_fluxform
6156    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.    accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
# Line 366  o following exp works with Olx=Oly=2 (an Line 6161  o following exp works with Olx=Oly=2 (an
6161      inverted_barometer solid-body.cs-32x32x1      inverted_barometer solid-body.cs-32x32x1
6162    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)    (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
6163    
6164  checkpoint48d_post  checkpoint48d_post (2003/02/09)
6165  o in preparation for r*:  o in preparation for r*:
6166   a) use pre-computed gradient of hydrostatic potential:   a) use pre-computed gradient of hydrostatic potential:
6167      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce      changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
# Line 374  o in preparation for r*: Line 6169  o in preparation for r*:
6169      => affects results of glob_oce_pressure (different truncation error)        => affects results of glob_oce_pressure (different truncation error)  
6170    update output.txt of ideal_2D_oce & global_ocean_pressure    update output.txt of ideal_2D_oce & global_ocean_pressure
6171    
6172  checkpoint48d_pre  checkpoint48d_pre (2003/02/08)
6173  o in preparation for r*:  o in preparation for r*:
6174    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.    new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
6175    pass the 2 comp. of the grad. as arguments to momentum S/R.    pass the 2 comp. of the grad. as arguments to momentum S/R.
6176    but for the moment, only used if it does not change the results.    but for the moment, only used if it does not change the results.
6177  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP  o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
6178    
6179  checkpoint48c_post  checkpoint48c_post (2003/02/06)
6180  Modifications in treatment of initial flux forcing controls  Modifications in treatment of initial flux forcing controls
6181  to avoid extra storing of flux fields.  to avoid extra storing of flux fields.
6182    
6183  checkpoint48c_pre  checkpoint48c_pre (2003/01/21)
6184  o Added tidal_basin_2d experiment (currently 1D!)  o Added tidal_basin_2d experiment (currently 1D!)
6185  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)  o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
6186    
6187  checkpoint48b_post  checkpoint48b_post (2003/01/27)
6188  o r* coordinate added in #ifdef NONLIN_FRSURF block.  o r* coordinate added in #ifdef NONLIN_FRSURF block.
6189   (modification to pressure gradient not yet implemented)   (modification to pressure gradient not yet implemented)
6190  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports  o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
6191    (for U & V) that are used for vertical advection of momentum.    (for U & V) that are used for vertical advection of momentum.
6192    
6193  checkpoint48a_post  checkpoint48a_post (2003/01/24)
6194  o In preparation for r*, use temp. array to compute vertical transport  o In preparation for r*, use temp. array to compute vertical transport
6195     in flux-form momentum pkg. => change results of few test-exp.     in flux-form momentum pkg. => change results of few test-exp.
6196    Update output of: exp4, exp5, front_relax, global_ocean_pressure,    Update output of: exp4, exp5, front_relax, global_ocean_pressure,
6197                      lab_sea, natl_box & plume_on_slope                      lab_sea, natl_box & plume_on_slope
6198    
6199  checkpoint48  checkpoint48 (2003/01/23)
6200  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')  o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
6201    
6202  checkpoint47j_post  checkpoint47j_post (2003/01/21)
6203  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.  o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
6204  o moved adexch from forward_step to addummy_in_stepping  o moved adexch from forward_step to addummy_in_stepping
6205  o added exch in ctrl_map_...  o added exch in ctrl_map_...
# Line 423  o Yet more changes in gmredi: Line 6218  o Yet more changes in gmredi:
6218      re-activated full calculation of taperfct for case 'ac02'      re-activated full calculation of taperfct for case 'ac02'
6219  o updating verification/ adjoints of carbon, global_ocean.90x40x15  o updating verification/ adjoints of carbon, global_ocean.90x40x15
6220    
6221  checkpoint47i_post  checkpoint47i_post (2003/01/13)
6222  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.  o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
6223  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)  o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
6224    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)    default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
# Line 439  o case GM_BOLUS_ADVEC should be cleaned Line 6234  o case GM_BOLUS_ADVEC should be cleaned
6234    S/R gmredi_slope_psi should be cleaned    S/R gmredi_slope_psi should be cleaned
6235  o verification/carbon now has exactConserv=.TRUE.  o verification/carbon now has exactConserv=.TRUE.
6236    
6237  checkpoint47g_post  checkpoint47g_post (2003/01/10)
6238  o time-average AIM output: becomes independent from statvars time-average  o time-average AIM output: becomes independent from statvars time-average
6239    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)    (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
6240  o After TAF bug fix:  o After TAF bug fix:
# Line 465  Gradient checks OK for Line 6260  Gradient checks OK for
6260  in conjunction with data.gmredi parameters to be checked in  in conjunction with data.gmredi parameters to be checked in
6261  in a few minutes under verification/carbon/code/  in a few minutes under verification/carbon/code/
6262    
6263  checkpoint47f_post  checkpoint47f_post (2002/12/28)
6264  Merging from release1_p10:  Merging from release1_p10:
6265  o modifications for using pkg/exf with pkg/seaice  o modifications for using pkg/exf with pkg/seaice
6266    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING    - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
# Line 477  o modifications for using pkg/exf with p Line 6272  o modifications for using pkg/exf with p
6272    - verification/lab_sea default experiment now uses    - verification/lab_sea default experiment now uses
6273      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf      pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
6274    
6275  checkpoint47e_post  checkpoint47e_post (2002/12/27)
6276  o created a tag prior to creating a branch  o created a tag prior to creating a branch
6277    
6278  checkpoint47d_post  checkpoint47d_post (2002/12/16)
6279  o fixed bug in the oceanic pressure coordinates code: vertical viscosity  o fixed bug in the oceanic pressure coordinates code: vertical viscosity
6280    at the bottom boundary had an erroneous half slip boundary condition    at the bottom boundary had an erroneous half slip boundary condition
6281  o added bottom drag and no slip boundary condition capabilities to  o added bottom drag and no slip boundary condition capabilities to
6282    oceanic pressure coordinates code    oceanic pressure coordinates code
6283  o added new verification experiment global_ocean_pressure, this experiment is  o added new verification experiment global_ocean_pressure, this experiment is
6284    also described in the tutorial section of the manual    also described in the tutorial section of the manual
6285  checkpoint47d_pre  checkpoint47d_pre (2002/12/16)
6286    
6287  checkpoint47c_post  checkpoint47c_post (2002/12/16)
6288  o Added a verification experiment for a global cubed-sphere ocean run  o Added a verification experiment for a global cubed-sphere ocean run
6289    -  verification/global_ocean.cubed32x32x30    -  verification/global_ocean.cubed32x32x30
6290    -  uses pkg/therm_seaice and pkg/bulk_forcing    -  uses pkg/therm_seaice and pkg/bulk_forcing
# Line 501  o OCEANICP & realFreshWater: include P-E Line 6296  o OCEANICP & realFreshWater: include P-E
6296    NOTES: requires option NONLIN_FRSURF to be "#define".    NOTES: requires option NONLIN_FRSURF to be "#define".
6297  o update advect_xz/results/output.txt (left from checkpoint44g_post)  o update advect_xz/results/output.txt (left from checkpoint44g_post)
6298    
6299  checkpoint47b_post  checkpoint47b_post (2002/12/05)
6300  Merging from release1_p9:  Merging from release1_p9:
6301  o pkg/seaice  o pkg/seaice
6302    - removed GOTO's and added taf directives    - removed GOTO's and added taf directives
# Line 518  o verification/lab_sea Line 6313  o verification/lab_sea
6313    - added missing matlab routines    - added missing matlab routines
6314    - added test of thermodynamics parallelization    - added test of thermodynamics parallelization
6315    
6316  checkpoint47a_post  checkpoint47a_post (2002/11/23)
6317  o new pkg: aim_v23  o new pkg: aim_v23
6318   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.   = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
6319     for now, keep the same surface forcing as before.     for now, keep the same surface forcing as before.
# Line 535  o bulk_force and therm_seaice Line 6330  o bulk_force and therm_seaice
6330  - Two ifdef statements for compile time,  - Two ifdef statements for compile time,
6331     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE     ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
6332    
6333  checkpoint47  checkpoint47 (2002/11/15)
6334  differentiable version of checkpoint46n_post  differentiable version of checkpoint46n_post
6335  o bug fix in quasihydrostaticterms  o bug fix in quasihydrostaticterms
6336  o * "clean" adjoint code (in terms of extensive recomputations)  o * "clean" adjoint code (in terms of extensive recomputations)
# Line 564  o Updated verification/carbon/ Line 6359  o Updated verification/carbon/
6359    - #define GM_VISBECK_VARIABLE_K    - #define GM_VISBECK_VARIABLE_K
6360    - GM_taper_scheme    = 'ldd97'        - GM_taper_scheme    = 'ldd97'    
6361    
6362  checkpoint46n_post  checkpoint46n_post (2002/11/12)
6363  Merging from release1_p8:  Merging from release1_p8:
6364  o verification/natl_box:  o verification/natl_box:
6365    updating new external_fields_load routine    updating new external_fields_load routine
# Line 618  o Adding new verification experiment glo Line 6413  o Adding new verification experiment glo
6413    the exf (and cal) package instead of the    the exf (and cal) package instead of the
6414    external_fields_load routine (cf README file).    external_fields_load routine (cf README file).
6415    
6416  checkpoint46m_post  checkpoint46m_post (2002/11/07)
6417  o modified testscript to return -- when there are no lines of "%MON" output  o modified testscript to return -- when there are no lines of "%MON" output
6418  o added new flag "quasiHydrostatic" for QH mode  o added new flag "quasiHydrostatic" for QH mode
6419    and new routine quasihydrostaticterms()    and new routine quasihydrostaticterms()
# Line 631  o introduced flag for controllin non-hyd Line 6426  o introduced flag for controllin non-hyd
6426  o removed gravitySign from PARM04  o removed gravitySign from PARM04
6427  o switched to g77/ifc from pgf77 in aim experiments  o switched to g77/ifc from pgf77 in aim experiments
6428    
6429  checkpoint46l_post  checkpoint46l_post (2002/11/01)
6430  o made convective adjustment work with pressure coordinates:  o made convective adjustment work with pressure coordinates:
6431   - changed the direction of k-loop in convective_adjustment.F for the   - changed the direction of k-loop in convective_adjustment.F for the
6432     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)     case of pressure coordinates (OCEANICP,ATMOSPHERIC buoyancyRelation)
# Line 644  o made convective adjustment work with p Line 6439  o made convective adjustment work with p
6439     at the beginning of find_rho, find_alpha, and find_beta, does a     at the beginning of find_rho, find_alpha, and find_beta, does a
6440     check of the entire slice, if CPP-option     check of the entire slice, if CPP-option
6441     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined     CHECK_SALINITY_FOR_NEGATIVE_VALUES is defined
6442  checkpoint46l_pre  checkpoint46l_pre (2002/10/23)
6443    
6444  checkpoint46k_post  checkpoint46k_post (2002/10/23)
6445  o fixed the verification/global_ocean.90x40x15 experiment:  o fixed the verification/global_ocean.90x40x15 experiment:
6446   - new bathymetry (the world according to A., JMC, and M.)   - new bathymetry (the world according to A., JMC, and M.)
6447   - new initial fields and forcing fields (*.bin files)   - new initial fields and forcing fields (*.bin files)
# Line 660  o S/R aim_initialise.F replace S/R aim_i Line 6455  o S/R aim_initialise.F replace S/R aim_i
6455   - read AIM physics parameters from a file (data.aimphys)   - read AIM physics parameters from a file (data.aimphys)
6456   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)   - set defaults values = F.Molteni paper (Clim.Dyn., 2002)
6457    
6458  checkpoint46j_post  checkpoint46j_post (2002/10/07)
6459  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH  o split calc_exact_eta in 2 S/R : integr_continuity & update_etaH
6460  o move wVel computation at the end of the time step, in S/R integr_continuity  o move wVel computation at the end of the time step, in S/R integr_continuity
6461  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)  o create specific S/R to exchange T,S before DYNAMICS (for stagger time step)
6462  o update timeave pkg for wVel diagnostic.  o update timeave pkg for wVel diagnostic.
6463  checkpoint46j_pre  checkpoint46j_pre (2002/09/27)
6464    
6465  checkpoint46i_post  checkpoint46i_post (2002/09/25)
6466  o Clean up AIM package (and keep the results unchanged):  o Clean up AIM package (and keep the results unchanged):
6467    include CPP_OPTION and use IMPLICT NONE in all routines ;    include CPP_OPTION and use IMPLICT NONE in all routines ;
6468    declare all the variables _RL ; use _d 0 for all numerical constants.    declare all the variables _RL ; use _d 0 for all numerical constants.
6469    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !    use ifdef ALLOW_AIM everywhere. And now AIM can be used with g77 !
6470    
6471  checkpoint46h_post  checkpoint46h_post (2002/09/25)
6472  o cleaned up the use of rhoNil and rhoConst.  o cleaned up the use of rhoNil and rhoConst.
6473    - rhoNil should only appear in the LINEAR equation of state, everywhere    - rhoNil should only appear in the LINEAR equation of state, everywhere
6474      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst      else rhoNil is replaced by rhoConst, e.g. find_rho computes rho-rhoConst
# Line 683  o introduced new parameter rhoConstFresh Line 6478  o introduced new parameter rhoConstFresh
6478    value is 999.8 kg/m^3    value is 999.8 kg/m^3
6479  o cleanup up external_forcing.F and external_forcing_surf.F  o cleanup up external_forcing.F and external_forcing_surf.F
6480    - can now be used by both OCEANIC and OCEANICP    - can now be used by both OCEANIC and OCEANICP
6481  checkpoint46h_pre  checkpoint46h_pre (2002/09/18)
6482    
6483   Added code to convert surface volume flux (fresh water) into   Added code to convert surface volume flux (fresh water) into
6484   a mass flux when using P coordinates in the ocean (OCEANICP).   a mass flux when using P coordinates in the ocean (OCEANICP).
6485   Note: It assumes you have set rho0=rhoConst=density of fresh water.   Note: It assumes you have set rho0=rhoConst=density of fresh water.
6486    
6487  checkpoint46g_post  checkpoint46g_post (2002/09/18)
6488  o Include a new diagnostic variable phiHydLow for the ocean model  o Include a new diagnostic variable phiHydLow for the ocean model
6489    - in z-coordinates, it is the bottom pressure anomaly    - in z-coordinates, it is the bottom pressure anomaly
6490    - in p-coordinates, it is the sea surface elevation    - in p-coordinates, it is the sea surface elevation
# Line 707  o cleaned up find_rho Line 6502  o cleaned up find_rho
6502    - removed obsolete 'eqn' from the parameter list.    - removed obsolete 'eqn' from the parameter list.
6503  o added two new verification experiments: gop and goz  o added two new verification experiments: gop and goz
6504    (4x4 degree global ocean, 15 layers in pressure and height coordinates)    (4x4 degree global ocean, 15 layers in pressure and height coordinates)
6505  checkpoint46g_pre  checkpoint46g_pre (2002/09/16)
6506    
6507  checkpoint46f_post  checkpoint46f_post (2002/09/16)
6508  o Enable tangent linear (forward mode) gradient checks:  o Enable tangent linear (forward mode) gradient checks:
6509    - extended active file handling to g_... files    - extended active file handling to g_... files
6510    - added TANGENT_SIMULATION to theSimulationMode    - added TANGENT_SIMULATION to theSimulationMode
# Line 717  o Enable tangent linear (forward mode) g Line 6512  o Enable tangent linear (forward mode) g
6512  o added tangent linear setup in verification/carbon/code_ftl  o added tangent linear setup in verification/carbon/code_ftl
6513  o added adjoint setup in verification/front_relax/code_ad  o added adjoint setup in verification/front_relax/code_ad
6514    
6515  checkpoint46e_post  checkpoint46e_post (2002/09/05)
6516  o Added new equation of state -> MDJWF  o Added new equation of state -> MDJWF
6517    - EOS of McDougall et al., 2002, JAOT, submitted    - EOS of McDougall et al., 2002, JAOT, submitted
6518    - caveat: the equation of state is only valid for a smaller (more    - caveat: the equation of state is only valid for a smaller (more
# Line 726  o Added new equation of state -> MDJWF Line 6521  o Added new equation of state -> MDJWF
6521    - added more check values for density in check_eos (ini_eos.F), some of    - added more check values for density in check_eos (ini_eos.F), some of
6522      the old check values are out of the range of the MDJWF-eos, so don't      the old check values are out of the range of the MDJWF-eos, so don't
6523      expect perfect matches for those      expect perfect matches for those
6524  checkpoint46e_pre  checkpoint46e_pre (2002/08/19)
6525    
6526  checkpoint46d_post  checkpoint46d_post (2002/08/19)
6527  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and  o fixed store_pressure to work with both buoyancy relation = 'OCEANIC' and
6528    'OCEANICP', also initialised field pressure correctly in ini_eos in the    'OCEANICP', also initialised field pressure correctly in ini_eos in the
6529    case of pressure coordinates. eosType='JMD95Z' in    case of pressure coordinates. eosType='JMD95Z' in
6530    combination with buoyancyRelation='OCEANICP' now causes an error.    combination with buoyancyRelation='OCEANICP' now causes an error.
6531  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
6532    in find_alpha/beta.    in find_alpha/beta.
6533  checkpoint46d_pre  checkpoint46d_pre (2002/08/15)
6534    
6535  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)  o Changed p = pressure(i,j,k,bi,bj)  to  p = pressure(i,j,kRef,bi,bj)
6536    so that JMD95Z and JMD95P give approptiate static stability in find_rho.    so that JMD95Z and JMD95P give approptiate static stability in find_rho.
6537    
6538  checkpoint46c_post  checkpoint46c_post (2002/08/15)
6539  o Changes necessary for ocean in p-coordinates  o Changes necessary for ocean in p-coordinates
6540   -  Added new buoyancy relation = 'OCEANICP'   -  Added new buoyancy relation = 'OCEANICP'
6541   -  Added new parameters = gravitySign (this used to be contained inside   -  Added new parameters = gravitySign (this used to be contained inside
6542      the factor dRdZ which I added when we first switched to R coordinates).      the factor dRdZ which I added when we first switched to R coordinates).
6543   X GM/Redi is not compatible (yet)   X GM/Redi is not compatible (yet)
6544   X bottom drag and no-slip need to be debugged.   X bottom drag and no-slip need to be debugged.
6545  checkpoint46c_pre  checkpoint46c_pre (2002/08/07)
6546    
6547  checkpoint46b_post  checkpoint46b_post (2002/08/07)
6548  o Added new equation of state -> JMD95Z and JMD95P  o Added new equation of state -> JMD95Z and JMD95P
6549    - EOS of Jackett and McDougall, 1995, JAOT    - EOS of Jackett and McDougall, 1995, JAOT
6550    - moved all EOS parameters into EOS.h    - moved all EOS parameters into EOS.h
# Line 758  o Added UNESCO EOS, but not recommended Line 6553  o Added UNESCO EOS, but not recommended
6553    in-situ temperature (see JMD95)    in-situ temperature (see JMD95)
6554  o Modified formatting for knudsen2.f in utils/knudsen2 and added  o Modified formatting for knudsen2.f in utils/knudsen2 and added
6555    unesco.f to be used with POLY3    unesco.f to be used with POLY3
6556  checkpoint46b_pre  checkpoint46b_pre (2002/07/31)
6557    
6558  checkpoint46a_post  checkpoint46a_post (2002/07/31)
6559  o Added (atmospheric) pressure loading  o Added (atmospheric) pressure loading
6560    - new field in FFIELDS.h, etc...    - new field in FFIELDS.h, etc...
6561    - new cpp flag ATMOSPHERIC_LOADING    - new cpp flag ATMOSPHERIC_LOADING
6562  o Changed hFacC to _hFacC in calc_phi_hyd.F  o Changed hFacC to _hFacC in calc_phi_hyd.F
6563  o Added SHORTWAVE_HEATING to some files for consistency  o Added SHORTWAVE_HEATING to some files for consistency
6564  checkpoint46a_pre  checkpoint46a_pre (2002/07/13)
6565    
6566  checkpoint46  checkpoint46 (2002/07/13)
6567  further merges from release1_p5  further merges from release1_p5
6568  o new ctrl package  o new ctrl package
6569    - adopted from ECCO environment to enable optimization    - adopted from ECCO environment to enable optimization
# Line 795  o added hooks for Eliassen Palm fluxes ( Line 6590  o added hooks for Eliassen Palm fluxes (
6590  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)  o cleaned TAF keys iikey, idkey (dynamics.F, thermodynamics.F)
6591  o incorporated hooks for sponge layer code (external_forcing.F)  o incorporated hooks for sponge layer code (external_forcing.F)
6592    
6593  checkpoint45d_post  checkpoint45d_post (2002/07/12)
6594  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)  o import 2 fixes from release1_p5 (CG2D.h & packages_readparms.F)
6595  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S  o use recip_dx*,recip_dy* instead of /dx*,/dy* in orlanski_E,W,N,S
6596    (affects plume_on_slope "cg2d" output)    (affects plume_on_slope "cg2d" output)
# Line 809  o add new flags: Line 6604  o add new flags:
6604   - for each tracer, define internal flag for multiDimAdvection & A-B   - for each tracer, define internal flag for multiDimAdvection & A-B
6605  o monitor: change definition of KE to check conservation of Energy  o monitor: change definition of KE to check conservation of Energy
6606    
6607  checkpoint45c_post  checkpoint45c_post (2002/05/30)
6608  o Removed f90 comments ("!")  o Removed f90 comments ("!")
6609  o Modified initialisations to enable exf package for MITgcm  o Modified initialisations to enable exf package for MITgcm
6610    (without invoking ECCO_PACKAGE).    (without invoking ECCO_PACKAGE).
# Line 817  o modifications to gradient check packag Line 6612  o modifications to gradient check packag
6612    - enable centered differences    - enable centered differences
6613    - modified format of standard output    - modified format of standard output
6614    
6615  checkpoint45b_post  checkpoint45b_post (2002/05/30)
6616  o cleaned exchange calls in cg2d  o cleaned exchange calls in cg2d
6617  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step  o Included CPP option ALLOW_AUTODIFF_MONITOR in forward_step
6618  o included CPP option SINGLE_LAYER_MODE in thermodynamics  o included CPP option SINGLE_LAYER_MODE in thermodynamics
# Line 829  o in initialise_varia, moved call packag Line 6624  o in initialise_varia, moved call packag
6624    (corresponding adjustment of TAF tape initialisation).    (corresponding adjustment of TAF tape initialisation).
6625  o in calc_diffusivity/calc_viscosity extended domain to full overlap.  o in calc_diffusivity/calc_viscosity extended domain to full overlap.
6626    
6627  checkpoint45a_post  checkpoint45a_post (2002/05/01)
6628  o compute Rho over the whole domain (extend iMin,jMin indices)  o compute Rho over the whole domain (extend iMin,jMin indices)
6629  o specific exchange for X-slice domain (case Ny=1)  o specific exchange for X-slice domain (case Ny=1)
6630  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code  o argument futureIter of S/R obcs_calc missing in exp4 & internal_wave /code
# Line 849  o errorMessageUnit set non-equal zero in Line 6644  o errorMessageUnit set non-equal zero in
6644    (conflict on some platforms, e.g. IBM SP3)    (conflict on some platforms, e.g. IBM SP3)
6645  o modified carbon verif.  o modified carbon verif.
6646    
6647  checkpoint44h_pre  checkpoint44h_pre (2002/03/14)
6648  o vertical grid option: allow to put the Interface at the middle between  o vertical grid option: allow to put the Interface at the middle between
6649    2 cell-centers ; replace delZ in pkg/kpp by drF.    2 cell-centers ; replace delZ in pkg/kpp by drF.
6650  o GM Advective form: Tracers are advected using the residual transport (=  o GM Advective form: Tracers are advected using the residual transport (=
6651    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.    Euler+GM-bolus); set param GM_AdvSeparate=T to return to previous form.
6652    
6653  checkpoint44g_post  checkpoint44g_post (2002/03/05)
6654  o fix surface correction term in multiDimAdvection (affects plume_on_slope  o fix surface correction term in multiDimAdvection (affects plume_on_slope
6655    results) ; ifdef missing in thermodynamics.F    results) ; ifdef missing in thermodynamics.F
6656    
# Line 920  o merge of relevant stuff from the ecco- Line 6715  o merge of relevant stuff from the ecco-
6715  o check parameters & config (chkpt44a_pre,post)  o check parameters & config (chkpt44a_pre,post)
6716  o OBC and NonLin_FrSurf.  o OBC and NonLin_FrSurf.
6717    
6718  checkpoint44  checkpoint44 (2002/01/18)
6719  o fix bug in mom_vi_del2uv  o fix bug in mom_vi_del2uv
6720  o select when filters are applied ; add options to zonal_filter (data.zonfilt)  o select when filters are applied ; add options to zonal_filter (data.zonfilt)
6721  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)  o gmredi: fix Pb in the adiabatic form ; add options (.e.g. Bolus advection)
# Line 928  o update AIM experiments (NCEP input fil Line 6723  o update AIM experiments (NCEP input fil
6723  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)  o improve and extend diagnostics (Monitor, TimeAve with NonLin-FrSurf)
6724  o added some stuff for AD  o added some stuff for AD
6725    
6726  checkpoint43  checkpoint43 (2001/09/28)
6727  o added two new advection tests  o added two new advection tests
6728  o added global 4x4 degree ocean test  o added global 4x4 degree ocean test
6729  o added test of H&S94 with free surface on cube  o added test of H&S94 with free surface on cube
6730  o some final mods for gradient check, adjoint,...  o some final mods for gradient check, adjoint,...
6731    
6732  checkpoint42  checkpoint42 (2001/09/27)
6733    Fixed AD-related problems:    Fixed AD-related problems:
6734  o Store directives up-to-date with re-arranged Adams-Bashforth  o Store directives up-to-date with re-arranged Adams-Bashforth
6735    (mainly thermodynamics.F)    (mainly thermodynamics.F)
# Line 946  o Modified store directives for split of Line 6741  o Modified store directives for split of
6741    for the case ALLOW_KPP    for the case ALLOW_KPP
6742  o Cleaned argument list for timestep_tracer.F  o Cleaned argument list for timestep_tracer.F
6743    
6744  checkpoint41  checkpoint41 (2001/09/27)
6745  o re-formatted/added comments in prologues of key subroutines  o re-formatted/added comments in prologues of key subroutines
6746    to work with protex    to work with protex
6747    
6748  checkpoint40  checkpoint40 (2001/09/27)
6749  o moved calc_gs, calc_gt and calc_tr1 back to model/src  o moved calc_gs, calc_gt and calc_tr1 back to model/src
6750  o added FLT (floats) package from Arne along with demo. experiment  o added FLT (floats) package from Arne along with demo. experiment
6751  o re-arranged Adams-Bashforth scheme for tracers to allow easier  o re-arranged Adams-Bashforth scheme for tracers to allow easier
# Line 959  o more mods for non-linear free-surface Line 6754  o more mods for non-linear free-surface
6754  o modified multi-dim method to work on cube  o modified multi-dim method to work on cube
6755  o bug fix in KPP (from DM)  o bug fix in KPP (from DM)
6756    
6757  checkpoint40pre9  checkpoint40pre9 (2001/09/27)
6758  o added DST advection schemes  o added DST advection schemes
6759  o fix MPI bug on SGI's  o fix MPI bug on SGI's
6760  o modifications for non-linear free-surface  o modifications for non-linear free-surface
# Line 969  o changes to commenting of arguments for Line 6764  o changes to commenting of arguments for
6764  o added/updated many matlab scripts  o added/updated many matlab scripts
6765  o added multi-dimensional advection method for tracers  o added multi-dimensional advection method for tracers
6766        
6767  checkpoint40pre8  checkpoint40pre8 (2001/09/05)
6768  o new package rw/  o new package rw/
6769    Added method for dumping intermediate local arrays:    Added method for dumping intermediate local arrays:
6770    mdsio_writetile - same as mdsio_writefield except works from inside    mdsio_writetile - same as mdsio_writefield except works from inside
# Line 988  o TAMC-related update to cope with mom_f Line 6783  o TAMC-related update to cope with mom_f
6783    currently nothing implemented to switch this storing off    currently nothing implemented to switch this storing off
6784    in case fluxform is used since no CPP flag available).    in case fluxform is used since no CPP flag available).
6785    
6786  checkpoint40pre7  checkpoint40pre7 (2001/08/14)
6787  o bug fix in dynamics.F  o bug fix in dynamics.F
6788    calc_viscosity called before k=1,Nr loop.    calc_viscosity called before k=1,Nr loop.
6789  o added some #ifdef's ALLOW_PASSIVE_TRACER  o added some #ifdef's ALLOW_PASSIVE_TRACER
6790  o cleaned initialisations in ctrl_map_ini  o cleaned initialisations in ctrl_map_ini
6791    related to TAF    related to TAF
6792    
6793  checkpoint40pre6  checkpoint40pre6 (2001/08/13)
6794  o split dynamics into thermodynamics & dynamics  o split dynamics into thermodynamics & dynamics
6795  o corresponding split of calc_diffusivity into  o corresponding split of calc_diffusivity into
6796    calc_diffusivity, calc_viscosity    calc_diffusivity, calc_viscosity
# Line 1003  o corresponding split of calc_diffusivit Line 6798  o corresponding split of calc_diffusivit
6798  o Added diffkr, kapgm to control variables  o Added diffkr, kapgm to control variables
6799  o bug fix in gmredi_slope_limit for ldd97  o bug fix in gmredi_slope_limit for ldd97
6800    
6801  checkpoint40pre5  checkpoint40pre5 (2001/07/31)
6802  o proper initialization of Adams-Bashforth time stepping  o proper initialization of Adams-Bashforth time stepping
6803    + uses forward step for very first step of model (iter=0)    + uses forward step for very first step of model (iter=0)
6804  o re-generated *all* output since almost all output is modified by this  o re-generated *all* output since almost all output is modified by this
# Line 1017  o added new expt "solid-body.cs-32x32x1" Line 6812  o added new expt "solid-body.cs-32x32x1"
6812    + this uses an alternative form of ini_curvilinear_grid.F which    + this uses an alternative form of ini_curvilinear_grid.F which
6813      is not necessarily any better than the current one...      is not necessarily any better than the current one...
6814    
6815  checkpoint40pre4  checkpoint40pre4 (2001/07/30)
6816  o added re-initialisations of utrans,vtrans,rtrans in  o added re-initialisations of utrans,vtrans,rtrans in
6817    calc_common_factors which are crucial for TAF.    calc_common_factors which are crucial for TAF.
6818  o extended iMin,jMin range for calc_common_factors,  o extended iMin,jMin range for calc_common_factors,
# Line 1025  o extended iMin,jMin range for calc_comm Line 6820  o extended iMin,jMin range for calc_comm
6820  o added option ALLOW_PASSIVE_TRACER  o added option ALLOW_PASSIVE_TRACER
6821  o a few minor updates and fixes  o a few minor updates and fixes
6822    
6823  checkpoint40pre3  checkpoint40pre3 (2001/07/13)
6824  o created calc_gtr1.F for gad package  o created calc_gtr1.F for gad package
6825  o split the_main_loop and re-introduced forward_step  o split the_main_loop and re-introduced forward_step
6826  o some recomputations of nIter0 for TAMC  o some recomputations of nIter0 for TAMC
6827    
6828  checkpoint40pre2  checkpoint40pre2 (2001/07/13)
6829  o Updated to latest branch of AJA, JMC  o Updated to latest branch of AJA, JMC
6830  o Added gradient check package  o Added gradient check package
6831  o Added routines for passive tracer handling  o Added routines for passive tracer handling
6832  o Added carbon sequestration sensitivity experiment  o Added carbon sequestration sensitivity experiment
6833    
6834  checkpoint39  checkpoint39 (2001/05/14)
6835   o Modifications and fixes to support TAMC   o Modifications and fixes to support TAMC
6836     (mainly missing or wrong directives)     (mainly missing or wrong directives)
6837   o Corrected common blocks when fooling TAMC to produce adjoint I/O   o Corrected common blocks when fooling TAMC to produce adjoint I/O
# Line 1050  checkpoint39 Line 6845  checkpoint39
6845           (NB: this is not the full ECCO environment)           (NB: this is not the full ECCO environment)
6846   o disabled some packages by default in genmake   o disabled some packages by default in genmake
6847    
6848  checkpoint38  checkpoint38 (2001/04/10)
6849   o see notes_c37_adj.txt   o see notes_c37_adj.txt
6850   o corrected wrong layer index in external_forcing_t   o corrected wrong layer index in external_forcing_t
6851   o replaced the_main_loop/forward_step by the_main_loop   o replaced the_main_loop/forward_step by the_main_loop
# Line 1058  checkpoint38 Line 6853  checkpoint38
6853     (replaced criteria for initial/final state)     (replaced criteria for initial/final state)
6854   o added runtime flag for pre-C35 pickups: usePickupBeforeC35   o added runtime flag for pre-C35 pickups: usePickupBeforeC35
6855    
6856  checkpoint37  checkpoint37 (2001/03/13)
6857   o mdsio.F routine split and packaged in pkg/mdsio   o mdsio.F routine split and packaged in pkg/mdsio
6858     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not     (mdsio.F and mdsio_gl.F still exist in eesupp/src but are not
6859      used unless genmake -disable=mdsio)      used unless genmake -disable=mdsio)
# Line 1075  checkpoint37 Line 6870  checkpoint37
6870   o Non-Hydrostatic pickup file Pb fixed.   o Non-Hydrostatic pickup file Pb fixed.
6871   o bug with Rigid-lid version (since c35) fixed.     o bug with Rigid-lid version (since c35) fixed.  
6872    
6873  checkpoint36  checkpoint36 (2001/02/20)
6874   o implement Crank-Nickelson barotropic time-stepping   o implement Crank-Nickelson barotropic time-stepping
6875   o recover Time-Average diagnostics   o recover Time-Average diagnostics
6876   o fix Pb in checkpoint (PR#19)   o fix Pb in checkpoint (PR#19)
6877   o AIM become a standard package ; clean unused CPP_kees   o AIM become a standard package ; clean unused CPP_kees
6878    
6879  checkpoint35  checkpoint35 (2001/02/08)
6880   o subtantial rewrite of dynamics.f   o subtantial rewrite of dynamics.f
6881   o allows staggered time-stepping   o allows staggered time-stepping
6882   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt   o packaged obcs, aim (Atmospheric Physics), zonal_filt, shap_filt
6883   o added bottom drag (linear + quadratic)   o added bottom drag (linear + quadratic)
6884    
6885  checkpoint34  checkpoint34 (2001/01/30)
6886   o Modified exchange routines for correct reverse simulation.   o Modified exchange routines for correct reverse simulation.
6887   o Added verification output to comply with bug fix in impldiff.F   o Added verification output to comply with bug fix in impldiff.F
6888     as of c33 (exp2, natl_box).     as of c33 (exp2, natl_box).
# Line 1098  checkpoint34 Line 6893  checkpoint34
6893   o Added routine GLOBAL_SUM_INT to global_sum.F   o Added routine GLOBAL_SUM_INT to global_sum.F
6894   o Added mdsio_gl.F for ECCO purposes.   o Added mdsio_gl.F for ECCO purposes.
6895    
6896  checkpoint33  checkpoint33 (2000/11/30)
6897   o Fixed bug in lower BC in impldiff.F   o Fixed bug in lower BC in impldiff.F
6898   o Fixed confusion about units of forcing arrays in FFIELDS.h   o Fixed confusion about units of forcing arrays in FFIELDS.h
6899     namely Fu,Fv,Qnet,Qsw,EmPmR:     namely Fu,Fv,Qnet,Qsw,EmPmR:
# Line 1116  checkpoint33 Line 6911  checkpoint33
6911       possibly use them.       possibly use them.
6912   o Corrected genmake to delete a temporary file during configuration   o Corrected genmake to delete a temporary file during configuration
6913    
6914  checkpoint32  checkpoint32 (2000/11/13)
6915   o Scaling of forcing fields moved from external_forcing.F to   o Scaling of forcing fields moved from external_forcing.F to
6916     external_fields_scale.F, called directly after loading fields.     external_fields_scale.F, called directly after loading fields.
6917   o Surface relaxation terms added to surface tendency fields in   o Surface relaxation terms added to surface tendency fields in
# Line 1127  checkpoint32 Line 6922  checkpoint32
6922   o Modifications and bug fixes in KPP package.   o Modifications and bug fixes in KPP package.
6923   o Verification experiment for KPP added (verification/nat_box/)   o Verification experiment for KPP added (verification/nat_box/)
6924    
6925  checkpoint31  checkpoint31 (2000/09/11)
6926   o Packages interface brought in line with defined standard   o Packages interface brought in line with defined standard
6927     -> new routines packages_...F     -> new routines packages_...F
6928     -> changes in initialise_fixed.F, initialise_varia.F     -> changes in initialise_fixed.F, initialise_varia.F
# Line 1144  checkpoint31 Line 6939  checkpoint31
6939     - not yet tested for GMRedi.     - not yet tested for GMRedi.
6940     - not yet tested for KPP.     - not yet tested for KPP.
6941    
6942  checkpoint30  checkpoint30 (2000/07/13)
6943   o Updates for OBCs   o Updates for OBCs
6944   o New experiment for test OBCs (internal_wave)   o New experiment for test OBCs (internal_wave)
6945   o New output.txt in verification/exp4/results/   o New output.txt in verification/exp4/results/
# Line 1153  checkpoint30 Line 6948  checkpoint30
6948   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)   o CPP'd calls to system routines for TARGET_CRAY_VECTOR (P.H.)
6949     and entry for T90 in genmake     and entry for T90 in genmake
6950    
6951  checkpoint29  checkpoint29 (2000/06/21)
6952   o packaged KPP and GM/Redi   o packaged KPP and GM/Redi
6953    
6954  checkpoint28  checkpoint28 (2000/06/09)
6955   o Corrected initialization of hFacMin for difference vertical coordinates   o Corrected initialization of hFacMin for difference vertical coordinates
6956   o Modified calculation of partial cell thickness to more robust algorithm   o Modified calculation of partial cell thickness to more robust algorithm
6957   o config_summary.F: replaced write_1D_... by write_0D_...   o config_summary.F: replaced write_1D_... by write_0D_...
# Line 1169  checkpoint28 Line 6964  checkpoint28
6964     included store directives and tape key computations required for TAMC.     included store directives and tape key computations required for TAMC.
6965   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC   o ALL TAMC related changes are between ifdef ALLOW_AUTODIFF_TAMC
6966    
6967  checkpoint27  checkpoint27 (2000/04/10)
6968   o fixed calc_isoslopes() to so that cancellation of terms in tensor   o fixed calc_isoslopes() to so that cancellation of terms in tensor
6969     formulation works properly with variable resolution.     formulation works properly with variable resolution.
6970   o restructured the calling tree between the_model_main() and dynamics()   o restructured the calling tree between the_model_main() and dynamics()
# Line 1177  checkpoint27 Line 6972  checkpoint27
6972   o introduced initialization file pSurfInitFile for free surface (cg2d_x)   o introduced initialization file pSurfInitFile for free surface (cg2d_x)
6973     in new routine ini_psurf()     in new routine ini_psurf()
6974    
6975  checkpoint26  checkpoint26 (2000/04/05)
6976   o moved some #ifdef in optional routines to encompass everything   o moved some #ifdef in optional routines to encompass everything
6977     except the argument declarations. This was using up some memory.     except the argument declarations. This was using up some memory.
6978   o fixed macros like _ADT to work with both versions of Linux cpp   o fixed macros like _ADT to work with both versions of Linux cpp
# Line 1187  checkpoint26 Line 6982  checkpoint26
6982     (macros are now in eesupp/inc/CPP_EEMACROS.h)     (macros are now in eesupp/inc/CPP_EEMACROS.h)
6983   o patch for 2 processor JAM mode   o patch for 2 processor JAM mode
6984    
6985  checkpoint25  checkpoint25 (2000/03/15)
6986   o updates for OBCs and NH   o updates for OBCs and NH
6987   o dramatically reduced memory usage   o dramatically reduced memory usage
6988   o added "JAM" routines for use on Artic network   o added "JAM" routines for use on Artic network
# Line 1198  checkpoint25 Line 6993  checkpoint25
6993      an explicit free-surface option)      an explicit free-surface option)
6994   o initial state input files for U and V   o initial state input files for U and V
6995    
6996  checkpoint24  checkpoint24 (1999/08/02)
6997   o Removed some spurious "REAL"s   o Removed some spurious "REAL"s
6998   o Updated KPP to latest version from JPL   o Updated KPP to latest version from JPL
6999   o Added a COS(latitude) in horizontal viscosity   o Added a COS(latitude) in horizontal viscosity
7000    
7001  checkpoint23  checkpoint23 (1999/05/26)
7002   o Added del^4 diffusion for salt and temperature   o Added del^4 diffusion for salt and temperature
7003   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)   o Multiple minor fixes (implicit none's, arguments to global_sum, etc.)
7004    
7005  checkpoint22  checkpoint22 (1999/05/18)
7006   o Made many small changes: implicit none, format(i5), etc...   o Made many small changes: implicit none, format(i5), etc...
7007   o Introduced KPP mixing scheme (compiles and runs but *not* tested)   o Introduced KPP mixing scheme (compiles and runs but *not* tested)
7008    
7009  checkpoint21  checkpoint21 (1999/05/18)
7010   o Introduced new I/O package that supports direct-access records (mdsio.F)   o Introduced new I/O package that supports direct-access records (mdsio.F)
7011   o Split-up mid-level I/O routines   o Split-up mid-level I/O routines
7012   o Updated input data for experiments 0,1,2,4 and 5   o Updated input data for experiments 0,1,2,4 and 5
7013   o Finally removed the genmake.* scripts (everyone seems happy with genmake)   o Finally removed the genmake.* scripts (everyone seems happy with genmake)
7014    
7015  checkpoint20  checkpoint20 (1999/03/22)
7016   o Tidied up open-boundaries some more   o Tidied up open-boundaries some more
7017   o Added non-hydrostatic code   o Added non-hydrostatic code
7018   o Fixed some input data   o Fixed some input data
7019   o Modified MPI start-up to work in "coupled" context.   o Modified MPI start-up to work in "coupled" context.
7020    
7021  checkpoint19  checkpoint19 (1998/12/15)
7022   o Tidied up directory structure for verification experiments.   o Tidied up directory structure for verification experiments.
7023   o Added new code for open boundaries.   o Added new code for open boundaries.
7024   o Corrected advective terms near boundaries.   o Corrected advective terms near boundaries.
# Line 1231  checkpoint19 Line 7026  checkpoint19
7026   o Implemented free-slip/no-slip BCs and del^4 dissipation.   o Implemented free-slip/no-slip BCs and del^4 dissipation.
7027   o Split default parameters out of ini_parms.F into set_defaults.F.   o Split default parameters out of ini_parms.F into set_defaults.F.
7028    
7029  checkpoint18  checkpoint18 (1998/11/30)
7030   o Further changes for optional code generation with   o Further changes for optional code generation with
7031     CPP - ugh!     CPP - ugh!
7032    
7033  checkpoint17  checkpoint17 (1998/11/03)
7034   o Beginning to incorporating modularity   o Beginning to incorporating modularity
7035     for supporting atmos. and ocean configs.     for supporting atmos. and ocean configs.
7036   o Small changes for TAMC complinace   o Small changes for TAMC complinace
7037   o New ultra simple test case. Barotropic box   o New ultra simple test case. Barotropic box
7038     configuration "exp0".     configuration "exp0".
7039    
7040  checkpoint16  checkpoint16 (1998/10/28)
7041   o Minor changes to exchange routines to support   o Minor changes to exchange routines to support
7042     accumulation in reverse mode. Adjoint of an     accumulation in reverse mode. Adjoint of an
7043     assignment is an addition.     assignment is an addition.
# Line 1250  checkpoint16 Line 7045  checkpoint16
7045     syntax) and by g77 under Linux ( 72 character     syntax) and by g77 under Linux ( 72 character
7046     limit ).     limit ).
7047    
7048  checkpoint15  checkpoint15 (1998/09/29)
7049   Rewrote exchange routines to allow   Rewrote exchange routines to allow
7050   o General tile <-> tile connectivity.   o General tile <-> tile connectivity.
7051   o TAMC reverse mode flag ( is this really needed? )   o TAMC reverse mode flag ( is this really needed? )
# Line 1259  checkpoint15 Line 7054  checkpoint15
7054     shmput/shmget, VIA, SYSV shmem and every other cool     shmput/shmget, VIA, SYSV shmem and every other cool
7055     communication method.     communication method.
7056    
7057  checkpoint14  checkpoint14 (1998/09/09)
7058   Consistent isomorphism chages made. These allow dynamical core   Consistent isomorphism chages made. These allow dynamical core
7059   to support both pressure and meters as a vertical coordinate.   to support both pressure and meters as a vertical coordinate.
7060    
7061  checkpoint13  checkpoint13 (1998/07/17)
7062   Release which corrects global_max problem and a couple   Release which corrects global_max problem and a couple
7063   of KGM time-averaging diagnostic errors. Also contains   of KGM time-averaging diagnostic errors. Also contains
7064   a double-gyre experiment setup as well as the baseline   a double-gyre experiment setup as well as the baseline
# Line 1278  branch-point-rdot Line 7073  branch-point-rdot
7073   I don't want to commit the rDot to the main-trunk until   I don't want to commit the rDot to the main-trunk until
7074   we've actually tested it...   we've actually tested it...
7075    
7076  checkpoint12  checkpoint12 (1998/07/08)
7077   Tidy up and added generic genmake script (formerly   Tidy up and added generic genmake script (formerly
7078   configure script).   configure script).
7079   Released to testers.   Released to testers.
7080    
7081  checkpoint11  checkpoint11 (1998/07/02)
7082   Re-arranged initialise() and introduced ini_vertical_grid()   Re-arranged initialise() and introduced ini_vertical_grid()
7083   and ini_masks_etc().   and ini_masks_etc().
7084    
7085  checkpoint10  checkpoint10 (1998/07/01)
7086   Introduced the configure script.   Introduced the configure script.
7087   Separated out the diags package.   Separated out the diags package.
7088   Added template for writing time-averages of tile/intermediate quantities.   Added template for writing time-averages of tile/intermediate quantities.
7089   Updated SIZE.h in exp2 and made the data big-endian.   Updated SIZE.h in exp2 and made the data big-endian.
7090    
7091  checkpoint9  checkpoint9 (1998/06/22)
7092   MPI fix. Filename changes (meta/data). salbin*y stuff.   MPI fix. Filename changes (meta/data). salbin*y stuff.
7093   General tidy-up.   General tidy-up.
7094   SST.bin SSS.bin added to verification/exp2   SST.bin SSS.bin added to verification/exp2
7095    
7096  checkpoint8  checkpoint8 (1998/06/22)
7097   Inludes time-dependant forcing and time-averaging.   Inludes time-dependant forcing and time-averaging.
7098   Works at 4x4 and 2.8125x2.8125 global   Works at 4x4 and 2.8125x2.8125 global
7099    
# Line 1308  checkpoint7-4degree-ref Line 7103  checkpoint7-4degree-ref
7103   model etc..   model etc..
7104   Configured for verification/exp2 - 4 degree global, two process.   Configured for verification/exp2 - 4 degree global, two process.
7105    
7106  checkpoint7  checkpoint7 (1998/06/15)
7107   Created by cnh   Created by cnh
7108   Simple 4 degree global simulation   Simple 4 degree global simulation
7109   configuration.   configuration.
# Line 1316  checkpoint7 Line 7111  checkpoint7
7111   hydrography, bathymetry etc   hydrography, bathymetry etc
7112   Does not include Heat Flux and E-P   Does not include Heat Flux and E-P
7113    
7114  checkpoint6  checkpoint6 (1998/06/08)
7115   Created by cnh   Created by cnh
7116   merged checkpoint5 with CD and   merged checkpoint5 with CD and
7117   spherical polar code.   spherical polar code.
7118   Still some problems with GM Redi   Still some problems with GM Redi
7119   abd full topography.   abd full topography.
7120    
7121  checkpoint5  checkpoint5 (1998/06/08)
7122   Created by AJA   Created by AJA
7123   contains updates to GM Redi   contains updates to GM Redi
7124   and reordered timestepping loop   and reordered timestepping loop
7125   for Implicit Diffusion.   for Implicit Diffusion.
7126    
7127  checkpoint4  checkpoint4 (1998/05/30)
7128   Created by cnh   Created by cnh
7129   Contains memory saving macros ( _rdxc etc..) for when   Contains memory saving macros ( _rdxc etc..) for when
7130   grid variations are limited.   grid variations are limited.
7131   Contains polynomial coeffs for EOS and knudsen program   Contains polynomial coeffs for EOS and knudsen program
7132   for generation.   for generation.
7133    
7134  checkpoint3  checkpoint3 (1998/05/26)
7135   Created by cnh   Created by cnh
7136   Added extra flags for runtime options   Added extra flags for runtime options
7137   Added this file   Added this file

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