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revision 1.1386 by heimbach, Sat Mar 5 17:58:22 2011 UTC revision 1.1505 by jmc, Mon Sep 26 19:00:49 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/seaice (SItracer pickup)
8    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
9      To be done:
10      - thorough testing of missing fields in S/R seaice_read_pickup
11      - thorough matching between generic tracers and specific fields used
12        (e.g. volume-weighted age, area-weighted age, salinity, ...)
13    o pkg/grdchk:
14      - all procs calculate and print finite-difference gradient (for testreport)
15      - change description output used by testreport;
16      - AD testing: also compare and report Finite-difference gradient;
17        => update all output_adm*.txt
18    o test exp. global_ocean_ebm:
19      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
20        and turn on exactConserve; update (fwd) output.
21    o pkg/seaice (LSR):
22      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
23      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
24        * identical results with non-CS topology (but save up to half of EXCH calls)
25        * no much changes in cs-32 verification tests since no ice at face edges
26         (differences due to convergence criteria, since nb of iterations changed)
27        * expect some differences on lat-lon-cap grid.
28        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
29    o pkg/exch2:
30      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
31        many tiles); until alternative coding is added, just add a stop.
32    o pkg/kpp:
33      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
34        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
35    o optfiles:
36      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
37        into corresponding standard one, which now support different build:
38        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
39      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
40    o pkg/obcs (seaice):
41      - add missing EXCH for uIce,vIce after applying OBCS;
42      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
43        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
44        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
45      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
46      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
47        and eedata.mth for MPI and mutlti-threaded testing.
48    o pkg/flt:
49      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
50      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
51      - fix pickup and trajectories + profiles output with multi-threads;
52      - add parameter to select group of fields to write along trajectory and
53        profile (default unchanged);
54      - only call PORT_RAND* function when flt_noise <> 0;
55      - add multi-threaded test for verification exp. flt_example.
56    o eesupp/src:
57      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
58      - USE_OMP_THREADING: check that number of threads (from eedata) matches
59        actual number (from env.var. setting).
60    o pkg/ebm:
61      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
62      - add multi-threaded test for verification exp. global_ocean_ebm
63    
64    checkpoint63b (2011/08/29)
65    o pkg/ebm:
66      - fix sign of runoff;
67      - update directly forcing fields (Qnet,EmPmR) to use standard
68        external_forcing_surf.F (remove ebm_forcing_surf.F);
69      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
70      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
71        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
72      - update global_ocean_ebm parameters file data and update output (fwd+ad).
73    o verification/matrix_example:
74      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
75        MPI and mutlti-threaded testing.
76    o pkg/matrix:
77      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
78      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
79      - fix for multi-threaded (remove DATA statement);
80      - use standard DIFFERENT_MULTIPLE function;
81      - add MATRIX_OPTIONS.h
82    o verification/matrix_example:
83       To allow to split the domain in several tiles, change the domain size
84        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
85        Western side) of land points.
86    o (*_)write_pickup:
87      - fix few bugs in mypackage_read/write_pickup.F
88      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
89        array of length 1 (was caught by compiler syntax-check).
90    o pkg/diagnostics (velocity potential solver):
91      - fix initialisation of main diagonal matrix (for overlap values)
92    o tools/build_options:
93      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
94        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
95      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
96        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
97        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
98        and use "-devel" testreport option for standard testing on baudelaire.
99    o pkg/grdchk:
100      - Assume that all gradient-check position are within the same tile
101        corresponding to global indices (iGloTile,jGloTile) and that
102        positions (i,j indices or nbeg) are local to this tile;
103      - set tile local-indices and proc. number according to tile global-indices;
104      - remove grdchkwhichproc from namelist (retired param);
105      - send adjoint gradient to all procs so that all procs print it to STDOUT;
106      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
107    o adding package bbl (Bottom Boundary Layer)
108      description in MITgcm/pkg/bbl/bbl_description.tex
109      example/test experiment in MITgcm_contrib/bbl
110    o adjoint verifications
111      - changed 5 experiments to multi-tiles
112        * global_ocean.90x40x15
113        * obcs_ctrl
114        * offline_exf_seaice
115        * tutorial_dic_adjoffline
116        * tutorial_tracer_adjsens
117        changed reference output for those that crossed tile boundaries
118        (changed choices of gradient check positions)
119      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
120      - temporary bug fix in grdchk_loc.F for obcs
121    o genmake2 & testreport
122      - add target "obj" (just for OBJFILES files) to Makefile;
123      - add option to specify FEXTRAFLAGS on command line.
124    o pkg/mypackage:
125      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
126    
127    checkpoint63a (2011/08/02)
128    o pkg/diagnostics (velocity potential):
129      - fix velocity-potential calculation when using OBCS: balance net inflow
130        at each level (new S/R OBCS_DIAG_BALANCE).
131      - fix some of the problems with OBCS in stream-function calculation.
132    o pkg/exf/exf_readparms.F
133      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
134        EXF_NML_OBCS) more consistent, so that you need not have these lists
135        in data.exf when they are not used.
136    o optim/optim_readdata.F:
137      - add some output about obcs variables that might help debugging
138      - add a check about nvarlength
139    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
140    o pkg/diagnostics (velocity potential):
141      - fix mask for OBCS (still problems in stream-function with OBCS);
142      - add specific parameter (default = main code CG2D params) for solver;
143      - in case of poor convergence, use solution corresponding to lowest residual.
144    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
145      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
146      and should be avoided where possible.
147    o model/src (rStar):
148      - include r* effect on reference-state (PhiRef) in totPhiHyd
149        (so that it's really the potential anomaly at the cell center);
150        affect solution only if z* with full pressure in EOS.
151      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
152        update output (because of z* in totPhiHyd and viscA4 changes);
153      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
154        @ constant r) until interpolation at constant r is implemented.
155    o pkg/diagnostics
156      - fix RCENTER diagnostics in case cell center is not at interface middle
157    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
158      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
159      that THETA and SALT are "conservative temperature" and "absolute
160      salinity"
161    o pkg/ctrl
162      - fix computation of endrec in s/r ctrl_init_rec
163      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
164    o pkg/seaice/seaice_growth.F
165      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
166        remove then obsolete STORE directives
167      - fix STORE directives for tice and tices, so that only the
168        appropriate part of the fields are stored (and not the entire
169        field); update global_ocean.cs32x15.seaice AD output.
170      - cosmetic changes: adjust CPP flags and indentation for better
171        legibilty
172    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
173      Chris Wilson)
174    o pkg/gmredi:
175       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
176       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
177    
178    checkpoint63  (2011/07/11)
179    o pkg/exch2:
180     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
181     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
182       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
183       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
184    o pkg/diagnostics:
185     - deal with pairs of post-processed diags which are computed together; in
186       particular, re-order list of diags within 1 file to save 2nd computation.
187     - add S/R to compute velocity stream-function (called after velocity-potential
188       calculation) from divergence free transport -> new diagnostics "PsiVEL".
189     - add parameter to select grid-point location where PsiVEL == 0.
190    o eesupp/src:
191       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
192       (specific S/R needed with exch2 topology - for now, just print an error msg)
193    o pkg/shelfice
194     - Implement friction velocity-dependent transfer coefficients following
195       Holland and Jenkins, JPO, 1999
196       Original code by M. Losch with small modifs.
197       Enable with CPP option SHI_ALLOW_GAMMAFRICT
198       and runtime flag SHELFICEuseGammaFrict
199    o verification lab_sea & global_ocean.cs32x15:
200     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
201       does not miss some dependencies (but is slower) and also works with many files
202       (default makedepend limitation for AD built).
203     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
204    o pkg/diagnostics:
205     - add run-time parameter "useMissingValue" (def=False) to fill land-point
206        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
207       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
208     - Extend the use of "missing_value" setting from data.diagnostics for the case
209       of counter-diagnostics (where fraction-weight is zero). This applies both to
210       MNC and MDS output files.
211    o pkg/seaice/seaice_growth.F:
212      - add 'a priori' cap of latent heat flux based on actual mass considerations
213        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
214        non-legacy seaice_solve4temp.
215      - add diagnostic of the residual sublimation freshwater flux (the freshwater
216        flux taken from the ocean if the total actual latent heat fluxes exceed
217        the maximum)
218      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
219       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
220      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
221       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
222      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
223      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
224    o verification 1D_ocean_ice_column:
225       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
226       update results
227    o pkg/diagnostics:
228     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
229       which are not filled-up but computed from other diags ; In this case, the mate
230       diag points to the primary (filled-up) diag to used for post processing.
231     - Update Velocity-potential computation using post-processed diag framework.
232     ==> Change the ordering of fields and time-periods in MDS output file
233       when using periodic averaging: now writes one time record with the full set
234       of fields for this time period, then the next time reccord (it used to be
235       one field with the full set of time records then the next field).
236         Note: this is now similar to NetCDF (MNC) output file. <==
237    
238    checkpoint62z (2011/06/21)
239    o adjoint monitor:
240     - Add adjoint monitor output for packages exf, seaice
241       and update relevant testreport output
242    o pkg/seaice:
243     - re-order diags inits so that they appear in order in available_diagnostics.log
244     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
245       area/heff/hsnow preceeding thermodynamic growth/melt.
246     - modified diag: SIdA; output actual effect, as the description states.
247     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
248     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
249       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
250        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
251     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
252     - added diagnostics for seaice generic tracers (SItr*).
253     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
254     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
255     I. Fenty: 18-Jun-2011:
256     Minor changes to seaice package:
257     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
258        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
259       - Differentiated "regularization variables" from "floor variables"
260        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
261        * hiceMin became SEAICE_hice_reg (old hiceMin)
262          (with _reg meaning regularization variable)
263       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
264        so as to ensure energy conservation when going between phases
265      - A22 was not used anywhere
266     2) Changed regularization procedure for heffActual and hsnowActual to ensure
267        well-boundedness and smooth adjoint in seaice_growth.F
268     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
269        because the old regularization always set heffActual >= 0.05 cm
270     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
271        on AREA when HEFF > 0.
272      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
273        requiring that DISABLE_AREA_FLOOR *not* be defined
274     Affected verifications:
275      - 1D_ocean_ice_column (output.txt output_adm.txt)
276      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
277    o pkg/diagnostics:
278      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
279      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
280        (was _RL, now integer) with option = 0 to retrieve all levels.
281      - add pieces of code to compute velocity potential at each level (new diagnostics
282        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
283        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
284      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
285        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
286        and in diagnostics_fract_fill.F (do not need a valid pointer for the
287        diagnostics counter-mate); check that definition of counter-diagnostic
288        includes a valid counter-mate (in diagnostics_set_levels.F).
289    o model/src (rStar):
290      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
291        affect solution only if z* with full pressure in EOS;
292        update output of test-exp global_ocean.90x40x15.
293    o pkg/seaice:
294      - introduce siEps=1e-5 parameter
295      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
296      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
297      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
298        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
299        as well as ice cover age and ridging index (attached to AREA).
300        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
301        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
302        Up to SItrMaxNum=3 tracers can be used simultaneously.
303    o pkg/salt_plume:
304      -introduce SPsalFRAC run time parameter that sets the fraction of the
305       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
306       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
307    o model debug options:
308      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
309        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
310      - Refine debug-msg printing selection (3 new levels):
311        debugMode  : controls printing of debug messages (sequence of S/R calls).
312        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
313         debLevZero =  0 ; /* level of disabled aux. msg printing */
314         debLevA =  1 ; /* level of minimum  aux. msg printing */
315         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
316         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
317         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
318         debLevE =  5 ; /* level of extensive debug printing */
319        New debugLevel default: with default debugMode value (=F),
320          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
321          and if debugMode=T, default debugLevel = 4 (debLevD).
322        Relation with previous settings:
323         debLevB (=2) corresponds to former debLevA (=1)
324         debLevD (=4) corresponds to former debLevB (=2)
325        Note:
326         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
327         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
328            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
329      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
330        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
331    o pkg/obcs:
332      - change OBCSfixTopo default from True to False (should not change the results);
333        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
334    o pkg/thsice:
335      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
336        2nd layer seaice sublimation (unlikely to happen)
337      - use Interior mask for OBCS in thsice_advection.F (similar to what is
338        done in gad_advection & seaice_advection).
339    o adjoint:
340      bug fix spotted by Gael Forget:
341      seaice_advection and thsice_advection still had
342      legacy CPP options to avoid CS corner updates for adjoint
343    o pkg/seaice:
344      => Change some of the defaults (2011/05/29):
345         - change SEAICEuseFluxForm default (from False to True)
346         - change DIFF1 default (from 0.004 m/s to 0. m/s)
347         And print warnings if DIFF1 is not set in data.seaice and centered
348          avection scheme is used without any diffusion.
349      also:
350      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
351      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
352      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
353        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
354        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
355      update results of test exp.:
356         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
357             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
358             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
359         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
360         seaice_obcs: output (SEAICEuseFluxForm=T)
361      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
362          for standard fwd & AD lab_sea tests (to keep the same output).
363    o pkg/seaice/seaice_growth.F:
364      - use Ian Fenty's capping formulas for actual ice
365      thickness thoughout EVOLUTION branch.
366      - put treatment pathological case #2) in CPP brackets
367      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
368      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
369    o pkg/seaice:
370      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
371      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
372      also pass fac as a param, which can be 1. (to update the tendency
373      field) or the time step (to update the field itself).
374      - seaice_advdiff.F: for multidim, call seaice_diffusion with
375      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
376      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
377      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
378      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
379    o pkg/seaice:
380      diffusion with centered advection scheme (diffus.F & advect.F):
381      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
382        to just compute the laplacian of input-field.
383      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
384      - fix flux-form version in diffus.F to conserve tracer.
385      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
386       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
387    
388    checkpoint62y (2011/05/26)
389    o pkg/seaice:
390     - seaice_growth.F : in EVOLUTION branch, always include
391       a_QSWbyATM_cover in qnet (as it should be).
392     - verification/global_ocean.cs32x15 : update results accordingly
393       (output.seaice.txt output_adm.seaice.txt).
394    o pkg/seaice + obcs:
395     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
396       equivalent of assuming no tracer gradient outside the OB region.
397       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
398     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
399       after changes above);
400     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
401       only at OB location (instead of over a band of OLx width).
402    o pkg/seaice:
403     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
404       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
405    o pkg/obcs:
406      - split header file "OBCS.h" into 4 separated files:
407        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
408       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
409         (contain no conditional statement which depends on OBCS options).
410      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
411        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
412    o ctrl, cost, grdchk & autodiff pkgs:
413      - make options file more standard (like other {PKG}_OPTIONS.h file but
414        with AD_CONFIG.h); clean-up some of the included header files.
415    o pkg/obcs:
416      - do not mask tracer when applying OB (tracer == 0 could generate problems)
417      - apply tracer OB values to tracer field only at OB location (instead of
418        over a band of OLx width)
419      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
420      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
421        obcs_apply_tloc.F & obcs_apply_sloc.F
422    o obcs in model/src:
423      - call OBCS_APPLY_W only if NonHydrostatic.
424      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
425      - reset dEtaHdt and wVel to zero outside OB interior region ;
426      - leave tracer unchanged outside OB interior region: This has no effect
427        on the solution but just to prevent unrealistic tracer value outside OB.
428      - zero out velocity outside OB interior region: This has no effect on
429        the solution but just to prevent unrealistic velocity outside OB.
430    o obcs and non-lin free-surf:
431       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
432       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
433       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
434       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
435       update results of test-exp. exp4(nlfs).
436    o exp4 (nlfs) test-exp:
437       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
438       with NonLin-FreeSurf); update output.nlfs.txt
439    o obcs and 2d/3d solver norm:
440       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
441       and outside OB interior region (will allow to place OB further inside the
442       domain). Depending on the domain, can affects cg2d-Norm (previous
443       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
444       and cg3d-Norm (previous Norm was computed before canceling OB terms),
445       e.g. in tutorial_plume_on_slope.
446      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
447    o pkg rbcs:
448      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
449      - add capability to apply relaxation to horizontal velocity uVel & vVel.
450    o pkg/grdchk: add gradient check for control variable xx_shifwflx
451    o pkg/shelfice/shelfice_init_fixed.F
452      fix CPP-flag combinations
453    o pkg/seaice: Merge iceage code of Pierre Rampal
454      * update/change/correct ice age calculations
455      * add age updates for pathological cases
456      Probably needs more testing...
457    
458    checkpoint62x (2011/05/13)
459    o pkg/mom_vecinv:
460       high-order vorticity scheme: use interior masks (maskInW & S)
461       to zero-out (outside OB) gradient of vorticity.
462    o verification exp.:
463       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
464       hs94.128x64x5 and seaice_obcs ; update results.
465    o pkg/obcs:
466      fix bug in OBeta for YZ sections in obcs_exf_load.F
467    o pkg/ctrl, pkg/shelfice, and optim:
468      - add new control variable xx_shifwflx (fresh water flux underneath ice
469        shelves). This is almost as tedious as obcs-ctrl, because the
470        variables needs its own mask.
471      - add a cost function term that penalizes the deviation of xx_shifwflx
472        from the first guess (zero) in analogy to other control variables
473    o pkg/shelfice:
474      - start basic adjoint
475    o pkg/ctrl:
476      - remove extra 2D field "for good measure" when initializing in
477        ctrl_set_globfld_[xy/xz/yz].F
478      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
479      - improve error messages in ctrl_set_unpack_*
480    o OBC implementation in momentum:
481       use interior masks (maskInC,W & S) in momentum S/R:
482       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
483       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
484       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
485       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
486       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
487        (and also with Leith/Smagorinsky harmonic-viscosity).
488       Update output of experiment dome and exp4 (+nlfs).
489    o exp4 test-exp:
490      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
491        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
492        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
493        time-varying OB at Western-side for wVel (NonHyd); update output.
494      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
495        and biharmonic-viscosity ; also use prescribed time varying OB.
496    o pkg/obcs:
497      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
498    o model/src:
499      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
500      - initialise startTime & nIter0 with unlikely values: allows to set one
501        from the other without ambiguity.
502    o seaice_obcs test-exp.:
503      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
504    o pkg/obcs:
505      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
506        no longer needed with maskInC,W,S in pkg/generic_advdiff.
507    o pkg/seaice:
508      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
509        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
510      - fixed bug in the initialization of sea ice salinity variable HSALT
511        in seaice_init_varia.F  (removed dependence on ICE2WATR)
512    o fizhi-cs test exp.:
513       switch reference output convention for these 2 non-standard test-exp,
514        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
515          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
516       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
517    o model/inc:
518      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
519        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
520    o pkg/seaice:
521      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
522    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
523      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
524        and initial HSALT
525    
526    checkpoint62w (2011/04/26)
527    o pkg/mom_fluxform:
528      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
529      - use parameter "sideDragFactor" in no-slip BC side-drag part.
530      - update output of exp. global_ocean.90x40x15
531    o pkg/mom_vecinv:
532      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
533    o update seaice exp.:
534      use more consistent parameter values (remove "backward compatability only":
535       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
536      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
537       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
538    o update test-exp global_ocean.90x40x15:
539      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
540      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
541      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
542      o turn on zStar & viscA4 in standard set-up (dir input/)
543        and update output files: output.txt & output.dwnslp.txt
544    o new AD-test experiment: obcs_ctrl
545      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
546    o pkg/dic:
547      fix two bugs in handling water vapour pressure in carbonate chemistry
548      and air-sea fluxes. Found by Val Bennington and Galen McKinley
549      (add DIC Option = WATERVAP_BUG to recover old results)
550      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
551    o adding allowInteriorFreezing option to check for water below freezing point
552      at depth and bring the negative heat anomaly to the surface level
553    o pkgs _fields_load:
554      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
555      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
556        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
557        rbcs to get interpolation weights and time reccord number.
558      - fix multi-threading in aim_fields_load.F
559      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
560    o external_fields_load:
561      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
562       interpolation weights) to use in a periodic time-series ; do not divide by
563       time-step to convert to integer:
564       - this fixes case where externForcingPeriod is not multiple of time-step
565          (Thanks to Christopher L. Wolfe)
566       - this fixes case where externForcingPeriod is an odd multiple of time-step
567         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
568      store index of time-record which is currently loaded:
569       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
570       - needed for the adjoint but not yet used because of extensive recomputations;
571         (to be fixed soon)
572    
573    checkpoint62v (2011/04/02)
574    o verification/1D_ocean_ice_column added to test Ian Fenty's
575      pkg/seaice_growth.F modifications for improving sea ice code differentiability
576    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
577      (new velocity statistics after changing maskInW & maskInS definition)
578    o pkg/generic_advdiff with OBCS:
579      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
580      equivalent to assumption of no tracer gradient outside the OB region.
581      This will affect the results if using obcs+biharmonic diffusion.
582      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
583    o pkg/obcs:
584      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
585      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
586      in Interior region. No impact on solution but affects Velocity monitor stats.
587    o pkg/ptracers (adjoint)
588      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
589      tape file for each tracer
590    o model/inc/src and pkg/autodiff: add parameters that allow to turn
591      of parts of the adjoint code at run time. For now, there are only
592      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
593      parameters are set in data.pkg.
594      This is the lazy coward's version of doing this, but still useful for
595      debugging. In order to do it right, everything needs to be moved to
596      pkg/autodiff.
597    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
598      the end; this fixes the adjoint balancing code for open boundaries.
599    o pkg/ctrl:
600      - change behavior of xx_${varname}period to be analogous to exf-conventions:
601        xx_${varname}period =   0.,  means time-independent control part
602        xx_${varname}period = -12., means one-year-periodic monthly control part
603      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
604        clean up ctrl_init a little, remove unused variables
605      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
606      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
607    
608    checkpoint62u (2011/03/15)
609    o model/src:
610      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
611        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
612      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
613        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
614    o pkg/ctrl/obcs/ecco:
615      - remove obsolete, unused, and partially broken code:
616        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
617        ALLOW_CTRL_OBCS_BALANCE
618      - put a stop statement into ecco/cost_obcsvol.F, but also add
619        cost_obcsvol to ecco_ad_diff.list
620    o pkg/ecco: fix counting cost function contributions for obcs (code
621      by Matt M.) and diffkr for diagnostics
622    o pkg/ecco, pkg/ctrl, pkg/grdchk:
623      add cost penalty terms for initial uvel, vvel, eta controls
624      and I/O for prior error files
625    o pkg/mdsio:
626       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
627       (new argument) to check for tiled file in mdsioLocalDir : this fix the
628       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
629    o pkg/ctrl:
630     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
631       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
632       unused and superfluous variables
633     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
634    o pkg/ecco
635     - enable adjoint of Stevens OB
636    o pkg/ctrl/ecco/grdchk:
637      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
638        Fortunately, we do not have any tests for the numerous cpp-flagged
639        option of "obcs as control parameters" so we will never know
640        if this is an improvement (but at least now things compile).
641      - remove an obsolete initialization from ecco_cost_init_barfiles.F
642      - fix some problems within never used ifdefs to make the code compile
643    o pkg/obcs:
644     - Refine Interior mask definition to work with more complex OB (e.g.
645       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
646       read in Interior mask from file. Check if Interior mask is consistent
647       with OB list of indices.
648    o pkg/seaice
649     - beginning code for a seaice tracer package,
650       but currently only used for seaice age: SEAICE_AGE
651       SEAICE_num = 4
652       iTracer = 1: area-weighted ice age
653               = 2: volume-weighted ice age
654               = 3, 4: template for one-year vs. multi-year ice
655       data.seaice has new namelist SEAICE_PARM03 for arrays related to
656       SEAICE_num
657    
658  checkpoint62t (2011/03/05)  checkpoint62t (2011/03/05)
659  o pkg/obcs:  o pkg/obcs:
660   - obcs_apply_uv.F: change to a 2 steps method, first tangential component;   - obcs_apply_uv.F: change to a 2 steps method, first tangential component;

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