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revision 1.1407 by jmc, Thu Apr 14 22:23:58 2011 UTC revision 1.1514 by dfer, Wed Oct 19 01:41:20 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/layers:
8      - Include potential density as new coordinate (Thanks to David Munday)
9    o pkg/dic:
10      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
11        carbonate computation/output to CALC_PCO2_APPROX
12    o model/src:
13      - improve vectorization also for adjoint code of
14        solve_tridiagonal and solve_pentadiagonal. As this requires up to
15        5 new 3D-fields, this code is only turned on for the combination of
16        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX.
17      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
18        ALLOW_AUTODIFF. This flag now needs to be set outside of
19        solve_tri/pentadiagonal.F
20    o pkg/exf:
21      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
22        optional namelist EXF_NML_OBCS).
23      - add many debug-print (to trace down where pkg/cal error msg comes from)
24    o pkg/mom_vecinv/mom_vi_hdissip.F
25      - rearrange loops so that vectorization is improved and in particular
26        the adjoint routine vectorizes. The code is a little longer now, but I
27        think easier to read.
28        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
29    o pkg/seaice:
30      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
31    o pkg/exch2:
32      - alternative code (without tile x tile matrix) for cumulated (global) sum;
33        used as default; keep using matrix version in adjustment.cs-32x32x1.
34    o tools/build_options:
35      - after merging some MPI and/or multi-threads specific optfiles so that
36        the modified default optfile support both built (using genmake2 -mpi
37        for the MPI built, using genmake2 -omp for OpenMP built),
38        move now obsolete optfiles to tools/build_options/unsupported/
39       (add copy of email sent to support list in doc/optfiles_changes.txt)
40    
41    checkpoint63c (2011/09/28)
42    o pkg/ebm:
43      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
44        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
45    o pkg/seaice (SItracer pickup)
46    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
47      To be done:
48      - thorough testing of missing fields in S/R seaice_read_pickup
49      - thorough matching between generic tracers and specific fields used
50        (e.g. volume-weighted age, area-weighted age, salinity, ...)
51    o pkg/grdchk:
52      - all procs calculate and print finite-difference gradient (for testreport)
53      - change description output used by testreport;
54      - AD testing: also compare and report Finite-difference gradient;
55        => update all output_adm*.txt
56    o test exp. global_ocean_ebm:
57      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
58        and turn on exactConserve; update (fwd) output.
59    o pkg/seaice (LSR):
60      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
61      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
62        * identical results with non-CS topology (but save up to half of EXCH calls)
63        * no much changes in cs-32 verification tests since no ice at face edges
64         (differences due to convergence criteria, since nb of iterations changed)
65        * expect some differences on lat-lon-cap grid.
66        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
67    o pkg/exch2:
68      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
69        many tiles); until alternative coding is added, just add a stop.
70    o pkg/kpp:
71      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
72        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
73    o optfiles:
74      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
75        into corresponding standard one, which now support different build:
76        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
77      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
78    o pkg/obcs (seaice):
79      - add missing EXCH for uIce,vIce after applying OBCS;
80      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
81        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
82        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
83      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
84      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
85        and eedata.mth for MPI and mutlti-threaded testing.
86    o pkg/flt:
87      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
88      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
89      - fix pickup and trajectories + profiles output with multi-threads;
90      - add parameter to select group of fields to write along trajectory and
91        profile (default unchanged);
92      - only call PORT_RAND* function when flt_noise <> 0;
93      - add multi-threaded test for verification exp. flt_example.
94    o eesupp/src:
95      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
96      - USE_OMP_THREADING: check that number of threads (from eedata) matches
97        actual number (from env.var. setting).
98    o pkg/ebm:
99      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
100      - add multi-threaded test for verification exp. global_ocean_ebm
101    
102    checkpoint63b (2011/08/29)
103    o pkg/ebm:
104      - fix sign of runoff;
105      - update directly forcing fields (Qnet,EmPmR) to use standard
106        external_forcing_surf.F (remove ebm_forcing_surf.F);
107      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
108      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
109        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
110      - update global_ocean_ebm parameters file data and update output (fwd+ad).
111    o verification/matrix_example:
112      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
113        MPI and mutlti-threaded testing.
114    o pkg/matrix:
115      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
116      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
117      - fix for multi-threaded (remove DATA statement);
118      - use standard DIFFERENT_MULTIPLE function;
119      - add MATRIX_OPTIONS.h
120    o verification/matrix_example:
121       To allow to split the domain in several tiles, change the domain size
122        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
123        Western side) of land points.
124    o (*_)write_pickup:
125      - fix few bugs in mypackage_read/write_pickup.F
126      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
127        array of length 1 (was caught by compiler syntax-check).
128    o pkg/diagnostics (velocity potential solver):
129      - fix initialisation of main diagonal matrix (for overlap values)
130    o tools/build_options:
131      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
132        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
133      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
134        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
135        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
136        and use "-devel" testreport option for standard testing on baudelaire.
137    o pkg/grdchk:
138      - Assume that all gradient-check position are within the same tile
139        corresponding to global indices (iGloTile,jGloTile) and that
140        positions (i,j indices or nbeg) are local to this tile;
141      - set tile local-indices and proc. number according to tile global-indices;
142      - remove grdchkwhichproc from namelist (retired param);
143      - send adjoint gradient to all procs so that all procs print it to STDOUT;
144      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
145    o adding package bbl (Bottom Boundary Layer)
146      description in MITgcm/pkg/bbl/bbl_description.tex
147      example/test experiment in MITgcm_contrib/bbl
148    o adjoint verifications
149      - changed 5 experiments to multi-tiles
150        * global_ocean.90x40x15
151        * obcs_ctrl
152        * offline_exf_seaice
153        * tutorial_dic_adjoffline
154        * tutorial_tracer_adjsens
155        changed reference output for those that crossed tile boundaries
156        (changed choices of gradient check positions)
157      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
158      - temporary bug fix in grdchk_loc.F for obcs
159    o genmake2 & testreport
160      - add target "obj" (just for OBJFILES files) to Makefile;
161      - add option to specify FEXTRAFLAGS on command line.
162    o pkg/mypackage:
163      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
164    
165    checkpoint63a (2011/08/02)
166    o pkg/diagnostics (velocity potential):
167      - fix velocity-potential calculation when using OBCS: balance net inflow
168        at each level (new S/R OBCS_DIAG_BALANCE).
169      - fix some of the problems with OBCS in stream-function calculation.
170    o pkg/exf/exf_readparms.F
171      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
172        EXF_NML_OBCS) more consistent, so that you need not have these lists
173        in data.exf when they are not used.
174    o optim/optim_readdata.F:
175      - add some output about obcs variables that might help debugging
176      - add a check about nvarlength
177    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
178    o pkg/diagnostics (velocity potential):
179      - fix mask for OBCS (still problems in stream-function with OBCS);
180      - add specific parameter (default = main code CG2D params) for solver;
181      - in case of poor convergence, use solution corresponding to lowest residual.
182    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
183      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
184      and should be avoided where possible.
185    o model/src (rStar):
186      - include r* effect on reference-state (PhiRef) in totPhiHyd
187        (so that it's really the potential anomaly at the cell center);
188        affect solution only if z* with full pressure in EOS.
189      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
190        update output (because of z* in totPhiHyd and viscA4 changes);
191      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
192        @ constant r) until interpolation at constant r is implemented.
193    o pkg/diagnostics
194      - fix RCENTER diagnostics in case cell center is not at interface middle
195    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
196      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
197      that THETA and SALT are "conservative temperature" and "absolute
198      salinity"
199    o pkg/ctrl
200      - fix computation of endrec in s/r ctrl_init_rec
201      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
202    o pkg/seaice/seaice_growth.F
203      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
204        remove then obsolete STORE directives
205      - fix STORE directives for tice and tices, so that only the
206        appropriate part of the fields are stored (and not the entire
207        field); update global_ocean.cs32x15.seaice AD output.
208      - cosmetic changes: adjust CPP flags and indentation for better
209        legibilty
210    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
211      Chris Wilson)
212    o pkg/gmredi:
213       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
214       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
215    
216    checkpoint63  (2011/07/11)
217    o pkg/exch2:
218     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
219     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
220       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
221       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
222    o pkg/diagnostics:
223     - deal with pairs of post-processed diags which are computed together; in
224       particular, re-order list of diags within 1 file to save 2nd computation.
225     - add S/R to compute velocity stream-function (called after velocity-potential
226       calculation) from divergence free transport -> new diagnostics "PsiVEL".
227     - add parameter to select grid-point location where PsiVEL == 0.
228    o eesupp/src:
229       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
230       (specific S/R needed with exch2 topology - for now, just print an error msg)
231    o pkg/shelfice
232     - Implement friction velocity-dependent transfer coefficients following
233       Holland and Jenkins, JPO, 1999
234       Original code by M. Losch with small modifs.
235       Enable with CPP option SHI_ALLOW_GAMMAFRICT
236       and runtime flag SHELFICEuseGammaFrict
237    o verification lab_sea & global_ocean.cs32x15:
238     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
239       does not miss some dependencies (but is slower) and also works with many files
240       (default makedepend limitation for AD built).
241     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
242    o pkg/diagnostics:
243     - add run-time parameter "useMissingValue" (def=False) to fill land-point
244        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
245       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
246     - Extend the use of "missing_value" setting from data.diagnostics for the case
247       of counter-diagnostics (where fraction-weight is zero). This applies both to
248       MNC and MDS output files.
249    o pkg/seaice/seaice_growth.F:
250      - add 'a priori' cap of latent heat flux based on actual mass considerations
251        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
252        non-legacy seaice_solve4temp.
253      - add diagnostic of the residual sublimation freshwater flux (the freshwater
254        flux taken from the ocean if the total actual latent heat fluxes exceed
255        the maximum)
256      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
257       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
258      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
259       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
260      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
261      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
262    o verification 1D_ocean_ice_column:
263       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
264       update results
265    o pkg/diagnostics:
266     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
267       which are not filled-up but computed from other diags ; In this case, the mate
268       diag points to the primary (filled-up) diag to used for post processing.
269     - Update Velocity-potential computation using post-processed diag framework.
270     ==> Change the ordering of fields and time-periods in MDS output file
271       when using periodic averaging: now writes one time record with the full set
272       of fields for this time period, then the next time reccord (it used to be
273       one field with the full set of time records then the next field).
274         Note: this is now similar to NetCDF (MNC) output file. <==
275    
276    checkpoint62z (2011/06/21)
277    o adjoint monitor:
278     - Add adjoint monitor output for packages exf, seaice
279       and update relevant testreport output
280    o pkg/seaice:
281     - re-order diags inits so that they appear in order in available_diagnostics.log
282     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
283       area/heff/hsnow preceeding thermodynamic growth/melt.
284     - modified diag: SIdA; output actual effect, as the description states.
285     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
286     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
287       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
288        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
289     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
290     - added diagnostics for seaice generic tracers (SItr*).
291     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
292     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
293     I. Fenty: 18-Jun-2011:
294     Minor changes to seaice package:
295     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
296        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
297       - Differentiated "regularization variables" from "floor variables"
298        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
299        * hiceMin became SEAICE_hice_reg (old hiceMin)
300          (with _reg meaning regularization variable)
301       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
302        so as to ensure energy conservation when going between phases
303      - A22 was not used anywhere
304     2) Changed regularization procedure for heffActual and hsnowActual to ensure
305        well-boundedness and smooth adjoint in seaice_growth.F
306     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
307        because the old regularization always set heffActual >= 0.05 cm
308     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
309        on AREA when HEFF > 0.
310      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
311        requiring that DISABLE_AREA_FLOOR *not* be defined
312     Affected verifications:
313      - 1D_ocean_ice_column (output.txt output_adm.txt)
314      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
315    o pkg/diagnostics:
316      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
317      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
318        (was _RL, now integer) with option = 0 to retrieve all levels.
319      - add pieces of code to compute velocity potential at each level (new diagnostics
320        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
321        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
322      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
323        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
324        and in diagnostics_fract_fill.F (do not need a valid pointer for the
325        diagnostics counter-mate); check that definition of counter-diagnostic
326        includes a valid counter-mate (in diagnostics_set_levels.F).
327    o model/src (rStar):
328      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
329        affect solution only if z* with full pressure in EOS;
330        update output of test-exp global_ocean.90x40x15.
331    o pkg/seaice:
332      - introduce siEps=1e-5 parameter
333      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
334      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
335      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
336        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
337        as well as ice cover age and ridging index (attached to AREA).
338        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
339        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
340        Up to SItrMaxNum=3 tracers can be used simultaneously.
341    o pkg/salt_plume:
342      -introduce SPsalFRAC run time parameter that sets the fraction of the
343       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
344       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
345    o model debug options:
346      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
347        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
348      - Refine debug-msg printing selection (3 new levels):
349        debugMode  : controls printing of debug messages (sequence of S/R calls).
350        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
351         debLevZero =  0 ; /* level of disabled aux. msg printing */
352         debLevA =  1 ; /* level of minimum  aux. msg printing */
353         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
354         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
355         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
356         debLevE =  5 ; /* level of extensive debug printing */
357        New debugLevel default: with default debugMode value (=F),
358          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
359          and if debugMode=T, default debugLevel = 4 (debLevD).
360        Relation with previous settings:
361         debLevB (=2) corresponds to former debLevA (=1)
362         debLevD (=4) corresponds to former debLevB (=2)
363        Note:
364         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
365         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
366            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
367      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
368        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
369    o pkg/obcs:
370      - change OBCSfixTopo default from True to False (should not change the results);
371        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
372    o pkg/thsice:
373      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
374        2nd layer seaice sublimation (unlikely to happen)
375      - use Interior mask for OBCS in thsice_advection.F (similar to what is
376        done in gad_advection & seaice_advection).
377    o adjoint:
378      bug fix spotted by Gael Forget:
379      seaice_advection and thsice_advection still had
380      legacy CPP options to avoid CS corner updates for adjoint
381    o pkg/seaice:
382      => Change some of the defaults (2011/05/29):
383         - change SEAICEuseFluxForm default (from False to True)
384         - change DIFF1 default (from 0.004 m/s to 0. m/s)
385         And print warnings if DIFF1 is not set in data.seaice and centered
386          avection scheme is used without any diffusion.
387      also:
388      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
389      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
390      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
391        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
392        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
393      update results of test exp.:
394         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
395             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
396             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
397         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
398         seaice_obcs: output (SEAICEuseFluxForm=T)
399      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
400          for standard fwd & AD lab_sea tests (to keep the same output).
401    o pkg/seaice/seaice_growth.F:
402      - use Ian Fenty's capping formulas for actual ice
403      thickness thoughout EVOLUTION branch.
404      - put treatment pathological case #2) in CPP brackets
405      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
406      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
407    o pkg/seaice:
408      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
409      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
410      also pass fac as a param, which can be 1. (to update the tendency
411      field) or the time step (to update the field itself).
412      - seaice_advdiff.F: for multidim, call seaice_diffusion with
413      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
414      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
415      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
416      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
417    o pkg/seaice:
418      diffusion with centered advection scheme (diffus.F & advect.F):
419      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
420        to just compute the laplacian of input-field.
421      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
422      - fix flux-form version in diffus.F to conserve tracer.
423      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
424       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
425    
426    checkpoint62y (2011/05/26)
427    o pkg/seaice:
428     - seaice_growth.F : in EVOLUTION branch, always include
429       a_QSWbyATM_cover in qnet (as it should be).
430     - verification/global_ocean.cs32x15 : update results accordingly
431       (output.seaice.txt output_adm.seaice.txt).
432    o pkg/seaice + obcs:
433     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
434       equivalent of assuming no tracer gradient outside the OB region.
435       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
436     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
437       after changes above);
438     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
439       only at OB location (instead of over a band of OLx width).
440    o pkg/seaice:
441     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
442       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
443    o pkg/obcs:
444      - split header file "OBCS.h" into 4 separated files:
445        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
446       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
447         (contain no conditional statement which depends on OBCS options).
448      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
449        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
450    o ctrl, cost, grdchk & autodiff pkgs:
451      - make options file more standard (like other {PKG}_OPTIONS.h file but
452        with AD_CONFIG.h); clean-up some of the included header files.
453    o pkg/obcs:
454      - do not mask tracer when applying OB (tracer == 0 could generate problems)
455      - apply tracer OB values to tracer field only at OB location (instead of
456        over a band of OLx width)
457      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
458      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
459        obcs_apply_tloc.F & obcs_apply_sloc.F
460    o obcs in model/src:
461      - call OBCS_APPLY_W only if NonHydrostatic.
462      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
463      - reset dEtaHdt and wVel to zero outside OB interior region ;
464      - leave tracer unchanged outside OB interior region: This has no effect
465        on the solution but just to prevent unrealistic tracer value outside OB.
466      - zero out velocity outside OB interior region: This has no effect on
467        the solution but just to prevent unrealistic velocity outside OB.
468    o obcs and non-lin free-surf:
469       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
470       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
471       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
472       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
473       update results of test-exp. exp4(nlfs).
474    o exp4 (nlfs) test-exp:
475       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
476       with NonLin-FreeSurf); update output.nlfs.txt
477    o obcs and 2d/3d solver norm:
478       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
479       and outside OB interior region (will allow to place OB further inside the
480       domain). Depending on the domain, can affects cg2d-Norm (previous
481       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
482       and cg3d-Norm (previous Norm was computed before canceling OB terms),
483       e.g. in tutorial_plume_on_slope.
484      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
485    o pkg rbcs:
486      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
487      - add capability to apply relaxation to horizontal velocity uVel & vVel.
488    o pkg/grdchk: add gradient check for control variable xx_shifwflx
489    o pkg/shelfice/shelfice_init_fixed.F
490      fix CPP-flag combinations
491    o pkg/seaice: Merge iceage code of Pierre Rampal
492      * update/change/correct ice age calculations
493      * add age updates for pathological cases
494      Probably needs more testing...
495    
496    checkpoint62x (2011/05/13)
497    o pkg/mom_vecinv:
498       high-order vorticity scheme: use interior masks (maskInW & S)
499       to zero-out (outside OB) gradient of vorticity.
500    o verification exp.:
501       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
502       hs94.128x64x5 and seaice_obcs ; update results.
503    o pkg/obcs:
504      fix bug in OBeta for YZ sections in obcs_exf_load.F
505    o pkg/ctrl, pkg/shelfice, and optim:
506      - add new control variable xx_shifwflx (fresh water flux underneath ice
507        shelves). This is almost as tedious as obcs-ctrl, because the
508        variables needs its own mask.
509      - add a cost function term that penalizes the deviation of xx_shifwflx
510        from the first guess (zero) in analogy to other control variables
511    o pkg/shelfice:
512      - start basic adjoint
513    o pkg/ctrl:
514      - remove extra 2D field "for good measure" when initializing in
515        ctrl_set_globfld_[xy/xz/yz].F
516      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
517      - improve error messages in ctrl_set_unpack_*
518    o OBC implementation in momentum:
519       use interior masks (maskInC,W & S) in momentum S/R:
520       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
521       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
522       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
523       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
524       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
525        (and also with Leith/Smagorinsky harmonic-viscosity).
526       Update output of experiment dome and exp4 (+nlfs).
527    o exp4 test-exp:
528      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
529        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
530        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
531        time-varying OB at Western-side for wVel (NonHyd); update output.
532      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
533        and biharmonic-viscosity ; also use prescribed time varying OB.
534    o pkg/obcs:
535      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
536    o model/src:
537      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
538      - initialise startTime & nIter0 with unlikely values: allows to set one
539        from the other without ambiguity.
540    o seaice_obcs test-exp.:
541      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
542    o pkg/obcs:
543      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
544        no longer needed with maskInC,W,S in pkg/generic_advdiff.
545    o pkg/seaice:
546      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
547        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
548      - fixed bug in the initialization of sea ice salinity variable HSALT
549        in seaice_init_varia.F  (removed dependence on ICE2WATR)
550    o fizhi-cs test exp.:
551       switch reference output convention for these 2 non-standard test-exp,
552        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
553          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
554       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
555    o model/inc:
556      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
557        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
558    o pkg/seaice:
559      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
560    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
561      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
562        and initial HSALT
563    
564    checkpoint62w (2011/04/26)
565    o pkg/mom_fluxform:
566      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
567      - use parameter "sideDragFactor" in no-slip BC side-drag part.
568      - update output of exp. global_ocean.90x40x15
569    o pkg/mom_vecinv:
570      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
571    o update seaice exp.:
572      use more consistent parameter values (remove "backward compatability only":
573       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
574      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
575       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
576    o update test-exp global_ocean.90x40x15:
577      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
578      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
579      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
580      o turn on zStar & viscA4 in standard set-up (dir input/)
581        and update output files: output.txt & output.dwnslp.txt
582    o new AD-test experiment: obcs_ctrl
583      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
584    o pkg/dic:
585      fix two bugs in handling water vapour pressure in carbonate chemistry
586      and air-sea fluxes. Found by Val Bennington and Galen McKinley
587      (add DIC Option = WATERVAP_BUG to recover old results)
588      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
589    o adding allowInteriorFreezing option to check for water below freezing point
590      at depth and bring the negative heat anomaly to the surface level
591    o pkgs _fields_load:
592      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
593      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
594        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
595        rbcs to get interpolation weights and time reccord number.
596      - fix multi-threading in aim_fields_load.F
597      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
598  o external_fields_load:  o external_fields_load:
599    new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear    new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
600     interpolation weights) to use in a periodic time-series ; do not divide by     interpolation weights) to use in a periodic time-series ; do not divide by

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