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revision 1.1374 by jmc, Sun Feb 6 00:24:40 2011 UTC revision 1.1497 by jmc, Mon Aug 29 17:23:24 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63b (2011/08/29)
8    o pkg/ebm:
9      - fix sign of runoff;
10      - update directly forcing fields (Qnet,EmPmR) to use standard
11        external_forcing_surf.F (remove ebm_forcing_surf.F);
12      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
13      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
14        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
15      - update global_ocean_ebm parameters file data and update output (fwd+ad).
16    o verification/matrix_example:
17      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
18        MPI and mutlti-threaded testing.
19    o pkg/matrix:
20      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
21      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
22      - fix for multi-threaded (remove DATA statement);
23      - use standard DIFFERENT_MULTIPLE function;
24      - add MATRIX_OPTIONS.h
25    o verification/matrix_example:
26       To allow to split the domain in several tiles, change the domain size
27        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
28        Western side) of land points.
29    o (*_)write_pickup:
30      - fix few bugs in mypackage_read/write_pickup.F
31      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
32        array of length 1 (was caught by compiler syntax-check).
33    o pkg/diagnostics (velocity potential solver):
34      - fix initialisation of main diagonal matrix (for overlap values)
35    o tools/build_options:
36      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
37        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
38      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
39        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
40        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
41        and use "-devel" testreport option for standard testing on baudelaire.
42    o pkg/grdchk:
43      - Assume that all gradient-check position are within the same tile
44        corresponding to global indices (iGloTile,jGloTile) and that
45        positions (i,j indices or nbeg) are local to this tile;
46      - set tile local-indices and proc. number according to tile global-indices;
47      - remove grdchkwhichproc from namelist (retired param);
48      - send adjoint gradient to all procs so that all procs print it to STDOUT;
49      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
50    o adding package bbl (Bottom Boundary Layer)
51      description in MITgcm/pkg/bbl/bbl_description.tex
52      example/test experiment in MITgcm_contrib/bbl
53    o adjoint verifications
54      - changed 5 experiments to multi-tiles
55        * global_ocean.90x40x15
56        * obcs_ctrl
57        * offline_exf_seaice
58        * tutorial_dic_adjoffline
59        * tutorial_tracer_adjsens
60        changed reference output for those that crossed tile boundaries
61        (changed choices of gradient check positions)
62      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
63      - temporary bug fix in grdchk_loc.F for obcs
64    o genmake2 & testreport
65      - add target "obj" (just for OBJFILES files) to Makefile;
66      - add option to specify FEXTRAFLAGS on command line.
67    o pkg/mypackage:
68      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
69    
70    checkpoint63a (2011/08/02)
71    o pkg/diagnostics (velocity potential):
72      - fix velocity-potential calculation when using OBCS: balance net inflow
73        at each level (new S/R OBCS_DIAG_BALANCE).
74      - fix some of the problems with OBCS in stream-function calculation.
75    o pkg/exf/exf_readparms.F
76      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
77        EXF_NML_OBCS) more consistent, so that you need not have these lists
78        in data.exf when they are not used.
79    o optim/optim_readdata.F:
80      - add some output about obcs variables that might help debugging
81      - add a check about nvarlength
82    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
83    o pkg/diagnostics (velocity potential):
84      - fix mask for OBCS (still problems in stream-function with OBCS);
85      - add specific parameter (default = main code CG2D params) for solver;
86      - in case of poor convergence, use solution corresponding to lowest residual.
87    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
88      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
89      and should be avoided where possible.
90    o model/src (rStar):
91      - include r* effect on reference-state (PhiRef) in totPhiHyd
92        (so that it's really the potential anomaly at the cell center);
93        affect solution only if z* with full pressure in EOS.
94      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
95        update output (because of z* in totPhiHyd and viscA4 changes);
96      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
97        @ constant r) until interpolation at constant r is implemented.
98    o pkg/diagnostics
99      - fix RCENTER diagnostics in case cell center is not at interface middle
100    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
101      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
102      that THETA and SALT are "conservative temperature" and "absolute
103      salinity"
104    o pkg/ctrl
105      - fix computation of endrec in s/r ctrl_init_rec
106      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
107    o pkg/seaice/seaice_growth.F
108      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
109        remove then obsolete STORE directives
110      - fix STORE directives for tice and tices, so that only the
111        appropriate part of the fields are stored (and not the entire
112        field); update global_ocean.cs32x15.seaice AD output.
113      - cosmetic changes: adjust CPP flags and indentation for better
114        legibilty
115    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
116      Chris Wilson)
117    o pkg/gmredi:
118       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
119       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
120    
121    checkpoint63  (2011/07/11)
122    o pkg/exch2:
123     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
124     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
125       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
126       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
127    o pkg/diagnostics:
128     - deal with pairs of post-processed diags which are computed together; in
129       particular, re-order list of diags within 1 file to save 2nd computation.
130     - add S/R to compute velocity stream-function (called after velocity-potential
131       calculation) from divergence free transport -> new diagnostics "PsiVEL".
132     - add parameter to select grid-point location where PsiVEL == 0.
133    o eesupp/src:
134       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
135       (specific S/R needed with exch2 topology - for now, just print an error msg)
136    o pkg/shelfice
137     - Implement friction velocity-dependent transfer coefficients following
138       Holland and Jenkins, JPO, 1999
139       Original code by M. Losch with small modifs.
140       Enable with CPP option SHI_ALLOW_GAMMAFRICT
141       and runtime flag SHELFICEuseGammaFrict
142    o verification lab_sea & global_ocean.cs32x15:
143     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
144       does not miss some dependencies (but is slower) and also works with many files
145       (default makedepend limitation for AD built).
146     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
147    o pkg/diagnostics:
148     - add run-time parameter "useMissingValue" (def=False) to fill land-point
149        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
150       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
151     - Extend the use of "missing_value" setting from data.diagnostics for the case
152       of counter-diagnostics (where fraction-weight is zero). This applies both to
153       MNC and MDS output files.
154    o pkg/seaice/seaice_growth.F:
155      - add 'a priori' cap of latent heat flux based on actual mass considerations
156        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
157        non-legacy seaice_solve4temp.
158      - add diagnostic of the residual sublimation freshwater flux (the freshwater
159        flux taken from the ocean if the total actual latent heat fluxes exceed
160        the maximum)
161      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
162       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
163      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
164       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
165      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
166      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
167    o verification 1D_ocean_ice_column:
168       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
169       update results
170    o pkg/diagnostics:
171     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
172       which are not filled-up but computed from other diags ; In this case, the mate
173       diag points to the primary (filled-up) diag to used for post processing.
174     - Update Velocity-potential computation using post-processed diag framework.
175     ==> Change the ordering of fields and time-periods in MDS output file
176       when using periodic averaging: now writes one time record with the full set
177       of fields for this time period, then the next time reccord (it used to be
178       one field with the full set of time records then the next field).
179         Note: this is now similar to NetCDF (MNC) output file. <==
180    
181    checkpoint62z (2011/06/21)
182    o adjoint monitor:
183     - Add adjoint monitor output for packages exf, seaice
184       and update relevant testreport output
185    o pkg/seaice:
186     - re-order diags inits so that they appear in order in available_diagnostics.log
187     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
188       area/heff/hsnow preceeding thermodynamic growth/melt.
189     - modified diag: SIdA; output actual effect, as the description states.
190     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
191     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
192       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
193        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
194     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
195     - added diagnostics for seaice generic tracers (SItr*).
196     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
197     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
198     I. Fenty: 18-Jun-2011:
199     Minor changes to seaice package:
200     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
201        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
202       - Differentiated "regularization variables" from "floor variables"
203        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
204        * hiceMin became SEAICE_hice_reg (old hiceMin)
205          (with _reg meaning regularization variable)
206       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
207        so as to ensure energy conservation when going between phases
208      - A22 was not used anywhere
209     2) Changed regularization procedure for heffActual and hsnowActual to ensure
210        well-boundedness and smooth adjoint in seaice_growth.F
211     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
212        because the old regularization always set heffActual >= 0.05 cm
213     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
214        on AREA when HEFF > 0.
215      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
216        requiring that DISABLE_AREA_FLOOR *not* be defined
217     Affected verifications:
218      - 1D_ocean_ice_column (output.txt output_adm.txt)
219      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
220    o pkg/diagnostics:
221      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
222      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
223        (was _RL, now integer) with option = 0 to retrieve all levels.
224      - add pieces of code to compute velocity potential at each level (new diagnostics
225        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
226        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
227      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
228        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
229        and in diagnostics_fract_fill.F (do not need a valid pointer for the
230        diagnostics counter-mate); check that definition of counter-diagnostic
231        includes a valid counter-mate (in diagnostics_set_levels.F).
232    o model/src (rStar):
233      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
234        affect solution only if z* with full pressure in EOS;
235        update output of test-exp global_ocean.90x40x15.
236    o pkg/seaice:
237      - introduce siEps=1e-5 parameter
238      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
239      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
240      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
241        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
242        as well as ice cover age and ridging index (attached to AREA).
243        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
244        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
245        Up to SItrMaxNum=3 tracers can be used simultaneously.
246    o pkg/salt_plume:
247      -introduce SPsalFRAC run time parameter that sets the fraction of the
248       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
249       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
250    o model debug options:
251      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
252        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
253      - Refine debug-msg printing selection (3 new levels):
254        debugMode  : controls printing of debug messages (sequence of S/R calls).
255        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
256         debLevZero =  0 ; /* level of disabled aux. msg printing */
257         debLevA =  1 ; /* level of minimum  aux. msg printing */
258         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
259         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
260         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
261         debLevE =  5 ; /* level of extensive debug printing */
262        New debugLevel default: with default debugMode value (=F),
263          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
264          and if debugMode=T, default debugLevel = 4 (debLevD).
265        Relation with previous settings:
266         debLevB (=2) corresponds to former debLevA (=1)
267         debLevD (=4) corresponds to former debLevB (=2)
268        Note:
269         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
270         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
271            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
272      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
273        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
274    o pkg/obcs:
275      - change OBCSfixTopo default from True to False (should not change the results);
276        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
277    o pkg/thsice:
278      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
279        2nd layer seaice sublimation (unlikely to happen)
280      - use Interior mask for OBCS in thsice_advection.F (similar to what is
281        done in gad_advection & seaice_advection).
282    o adjoint:
283      bug fix spotted by Gael Forget:
284      seaice_advection and thsice_advection still had
285      legacy CPP options to avoid CS corner updates for adjoint
286    o pkg/seaice:
287      => Change some of the defaults (2011/05/29):
288         - change SEAICEuseFluxForm default (from False to True)
289         - change DIFF1 default (from 0.004 m/s to 0. m/s)
290         And print warnings if DIFF1 is not set in data.seaice and centered
291          avection scheme is used without any diffusion.
292      also:
293      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
294      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
295      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
296        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
297        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
298      update results of test exp.:
299         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
300             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
301             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
302         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
303         seaice_obcs: output (SEAICEuseFluxForm=T)
304      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
305          for standard fwd & AD lab_sea tests (to keep the same output).
306    o pkg/seaice/seaice_growth.F:
307      - use Ian Fenty's capping formulas for actual ice
308      thickness thoughout EVOLUTION branch.
309      - put treatment pathological case #2) in CPP brackets
310      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
311      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
312    o pkg/seaice:
313      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
314      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
315      also pass fac as a param, which can be 1. (to update the tendency
316      field) or the time step (to update the field itself).
317      - seaice_advdiff.F: for multidim, call seaice_diffusion with
318      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
319      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
320      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
321      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
322    o pkg/seaice:
323      diffusion with centered advection scheme (diffus.F & advect.F):
324      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
325        to just compute the laplacian of input-field.
326      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
327      - fix flux-form version in diffus.F to conserve tracer.
328      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
329       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
330    
331    checkpoint62y (2011/05/26)
332    o pkg/seaice:
333     - seaice_growth.F : in EVOLUTION branch, always include
334       a_QSWbyATM_cover in qnet (as it should be).
335     - verification/global_ocean.cs32x15 : update results accordingly
336       (output.seaice.txt output_adm.seaice.txt).
337    o pkg/seaice + obcs:
338     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
339       equivalent of assuming no tracer gradient outside the OB region.
340       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
341     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
342       after changes above);
343     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
344       only at OB location (instead of over a band of OLx width).
345    o pkg/seaice:
346     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
347       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
348    o pkg/obcs:
349      - split header file "OBCS.h" into 4 separated files:
350        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
351       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
352         (contain no conditional statement which depends on OBCS options).
353      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
354        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
355    o ctrl, cost, grdchk & autodiff pkgs:
356      - make options file more standard (like other {PKG}_OPTIONS.h file but
357        with AD_CONFIG.h); clean-up some of the included header files.
358    o pkg/obcs:
359      - do not mask tracer when applying OB (tracer == 0 could generate problems)
360      - apply tracer OB values to tracer field only at OB location (instead of
361        over a band of OLx width)
362      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
363      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
364        obcs_apply_tloc.F & obcs_apply_sloc.F
365    o obcs in model/src:
366      - call OBCS_APPLY_W only if NonHydrostatic.
367      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
368      - reset dEtaHdt and wVel to zero outside OB interior region ;
369      - leave tracer unchanged outside OB interior region: This has no effect
370        on the solution but just to prevent unrealistic tracer value outside OB.
371      - zero out velocity outside OB interior region: This has no effect on
372        the solution but just to prevent unrealistic velocity outside OB.
373    o obcs and non-lin free-surf:
374       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
375       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
376       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
377       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
378       update results of test-exp. exp4(nlfs).
379    o exp4 (nlfs) test-exp:
380       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
381       with NonLin-FreeSurf); update output.nlfs.txt
382    o obcs and 2d/3d solver norm:
383       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
384       and outside OB interior region (will allow to place OB further inside the
385       domain). Depending on the domain, can affects cg2d-Norm (previous
386       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
387       and cg3d-Norm (previous Norm was computed before canceling OB terms),
388       e.g. in tutorial_plume_on_slope.
389      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
390    o pkg rbcs:
391      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
392      - add capability to apply relaxation to horizontal velocity uVel & vVel.
393    o pkg/grdchk: add gradient check for control variable xx_shifwflx
394    o pkg/shelfice/shelfice_init_fixed.F
395      fix CPP-flag combinations
396    o pkg/seaice: Merge iceage code of Pierre Rampal
397      * update/change/correct ice age calculations
398      * add age updates for pathological cases
399      Probably needs more testing...
400    
401    checkpoint62x (2011/05/13)
402    o pkg/mom_vecinv:
403       high-order vorticity scheme: use interior masks (maskInW & S)
404       to zero-out (outside OB) gradient of vorticity.
405    o verification exp.:
406       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
407       hs94.128x64x5 and seaice_obcs ; update results.
408    o pkg/obcs:
409      fix bug in OBeta for YZ sections in obcs_exf_load.F
410    o pkg/ctrl, pkg/shelfice, and optim:
411      - add new control variable xx_shifwflx (fresh water flux underneath ice
412        shelves). This is almost as tedious as obcs-ctrl, because the
413        variables needs its own mask.
414      - add a cost function term that penalizes the deviation of xx_shifwflx
415        from the first guess (zero) in analogy to other control variables
416    o pkg/shelfice:
417      - start basic adjoint
418    o pkg/ctrl:
419      - remove extra 2D field "for good measure" when initializing in
420        ctrl_set_globfld_[xy/xz/yz].F
421      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
422      - improve error messages in ctrl_set_unpack_*
423    o OBC implementation in momentum:
424       use interior masks (maskInC,W & S) in momentum S/R:
425       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
426       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
427       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
428       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
429       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
430        (and also with Leith/Smagorinsky harmonic-viscosity).
431       Update output of experiment dome and exp4 (+nlfs).
432    o exp4 test-exp:
433      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
434        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
435        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
436        time-varying OB at Western-side for wVel (NonHyd); update output.
437      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
438        and biharmonic-viscosity ; also use prescribed time varying OB.
439    o pkg/obcs:
440      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
441    o model/src:
442      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
443      - initialise startTime & nIter0 with unlikely values: allows to set one
444        from the other without ambiguity.
445    o seaice_obcs test-exp.:
446      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
447    o pkg/obcs:
448      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
449        no longer needed with maskInC,W,S in pkg/generic_advdiff.
450    o pkg/seaice:
451      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
452        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
453      - fixed bug in the initialization of sea ice salinity variable HSALT
454        in seaice_init_varia.F  (removed dependence on ICE2WATR)
455    o fizhi-cs test exp.:
456       switch reference output convention for these 2 non-standard test-exp,
457        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
458          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
459       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
460    o model/inc:
461      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
462        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
463    o pkg/seaice:
464      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
465    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
466      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
467        and initial HSALT
468    
469    checkpoint62w (2011/04/26)
470    o pkg/mom_fluxform:
471      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
472      - use parameter "sideDragFactor" in no-slip BC side-drag part.
473      - update output of exp. global_ocean.90x40x15
474    o pkg/mom_vecinv:
475      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
476    o update seaice exp.:
477      use more consistent parameter values (remove "backward compatability only":
478       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
479      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
480       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
481    o update test-exp global_ocean.90x40x15:
482      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
483      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
484      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
485      o turn on zStar & viscA4 in standard set-up (dir input/)
486        and update output files: output.txt & output.dwnslp.txt
487    o new AD-test experiment: obcs_ctrl
488      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
489    o pkg/dic:
490      fix two bugs in handling water vapour pressure in carbonate chemistry
491      and air-sea fluxes. Found by Val Bennington and Galen McKinley
492      (add DIC Option = WATERVAP_BUG to recover old results)
493      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
494    o adding allowInteriorFreezing option to check for water below freezing point
495      at depth and bring the negative heat anomaly to the surface level
496    o pkgs _fields_load:
497      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
498      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
499        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
500        rbcs to get interpolation weights and time reccord number.
501      - fix multi-threading in aim_fields_load.F
502      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
503    o external_fields_load:
504      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
505       interpolation weights) to use in a periodic time-series ; do not divide by
506       time-step to convert to integer:
507       - this fixes case where externForcingPeriod is not multiple of time-step
508          (Thanks to Christopher L. Wolfe)
509       - this fixes case where externForcingPeriod is an odd multiple of time-step
510         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
511      store index of time-record which is currently loaded:
512       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
513       - needed for the adjoint but not yet used because of extensive recomputations;
514         (to be fixed soon)
515    
516    checkpoint62v (2011/04/02)
517    o verification/1D_ocean_ice_column added to test Ian Fenty's
518      pkg/seaice_growth.F modifications for improving sea ice code differentiability
519    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
520      (new velocity statistics after changing maskInW & maskInS definition)
521    o pkg/generic_advdiff with OBCS:
522      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
523      equivalent to assumption of no tracer gradient outside the OB region.
524      This will affect the results if using obcs+biharmonic diffusion.
525      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
526    o pkg/obcs:
527      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
528      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
529      in Interior region. No impact on solution but affects Velocity monitor stats.
530    o pkg/ptracers (adjoint)
531      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
532      tape file for each tracer
533    o model/inc/src and pkg/autodiff: add parameters that allow to turn
534      of parts of the adjoint code at run time. For now, there are only
535      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
536      parameters are set in data.pkg.
537      This is the lazy coward's version of doing this, but still useful for
538      debugging. In order to do it right, everything needs to be moved to
539      pkg/autodiff.
540    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
541      the end; this fixes the adjoint balancing code for open boundaries.
542    o pkg/ctrl:
543      - change behavior of xx_${varname}period to be analogous to exf-conventions:
544        xx_${varname}period =   0.,  means time-independent control part
545        xx_${varname}period = -12., means one-year-periodic monthly control part
546      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
547        clean up ctrl_init a little, remove unused variables
548      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
549      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
550    
551    checkpoint62u (2011/03/15)
552    o model/src:
553      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
554        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
555      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
556        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
557    o pkg/ctrl/obcs/ecco:
558      - remove obsolete, unused, and partially broken code:
559        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
560        ALLOW_CTRL_OBCS_BALANCE
561      - put a stop statement into ecco/cost_obcsvol.F, but also add
562        cost_obcsvol to ecco_ad_diff.list
563    o pkg/ecco: fix counting cost function contributions for obcs (code
564      by Matt M.) and diffkr for diagnostics
565    o pkg/ecco, pkg/ctrl, pkg/grdchk:
566      add cost penalty terms for initial uvel, vvel, eta controls
567      and I/O for prior error files
568    o pkg/mdsio:
569       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
570       (new argument) to check for tiled file in mdsioLocalDir : this fix the
571       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
572    o pkg/ctrl:
573     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
574       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
575       unused and superfluous variables
576     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
577    o pkg/ecco
578     - enable adjoint of Stevens OB
579    o pkg/ctrl/ecco/grdchk:
580      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
581        Fortunately, we do not have any tests for the numerous cpp-flagged
582        option of "obcs as control parameters" so we will never know
583        if this is an improvement (but at least now things compile).
584      - remove an obsolete initialization from ecco_cost_init_barfiles.F
585      - fix some problems within never used ifdefs to make the code compile
586    o pkg/obcs:
587     - Refine Interior mask definition to work with more complex OB (e.g.
588       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
589       read in Interior mask from file. Check if Interior mask is consistent
590       with OB list of indices.
591    o pkg/seaice
592     - beginning code for a seaice tracer package,
593       but currently only used for seaice age: SEAICE_AGE
594       SEAICE_num = 4
595       iTracer = 1: area-weighted ice age
596               = 2: volume-weighted ice age
597               = 3, 4: template for one-year vs. multi-year ice
598       data.seaice has new namelist SEAICE_PARM03 for arrays related to
599       SEAICE_num
600    
601    checkpoint62t (2011/03/05)
602    o pkg/obcs:
603     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
604       then normal component. This ensures that the normal component is set
605       correctly even when it conficts with tangential setting from an other OB.
606       Affects results of test-experiment seaice_obcs: update the output.txt
607    o pkg/obcs:
608     - add code to monitor statistics of dynamical fields at OB.
609     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
610       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
611       - change default: balance the Net inflow through all OB (instead of balancing
612         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
613     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
614       to match Nortern OB inflow (OBCS_balanceFacN=0).
615    o pkg/seaice:
616     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
617    o pkg/seaice (seaice_growth v 1.113):
618     - reverting seaice_growth to v 1.111 in order to have code with exact bit
619       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
620       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
621       runtime flag SEAICEareaFormula is kept but is inactive
622    o model/src:
623     - add new param to scale curvilinear grid distance and area when using
624       a different sphere radius from the grid-files.
625     - test/check multi-threads EXCH applied to local variable (cg2d_x)
626    o adjoint:
627     - enable adjoint of Stevens OB
628     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
629       (a bit delicate because of potentially modified adj. common block structure;
630       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
631    
632    checkpoint62s (2011/02/15)
633    o pkg/seaice (seaice_growth v 1.112):
634     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
635       computing the ice cover tendency from effective thickness tendencies. Include
636       Ian Fenty's formula.
637     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
638       SEAICEareaFormula.
639     - simplify notations for the various d_HEFF/d_AREA terms.
640    o pkg/gmredi:
641     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
642       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
643       add a verification test-run (front_relax.bvp) to test GM_useBVP.
644    o pkg/seaice (seaice_growth v 1.111):
645     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
646     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
647       also melt ice.
648    o pkg/seaice:
649     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
650     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
651  o pkg/cheapaml:  o pkg/cheapaml:
652   - from Nico Wienders: New version of this package.   - from Nico Wienders: New version of this package.
653  o pkg/flt:  o pkg/flt:

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