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revision 1.1375 by gforget, Wed Feb 9 12:38:57 2011 UTC revision 1.1489 by dimitri, Sun Aug 7 07:08:14 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:  o adding package bbl (Bottom Boundary Layer)
8      description in MITgcm/pkg/bbl/bbl_description.tex
9      example/test experiment in MITgcm_contrib/bbl
10    
11    o adjoint verifications
12      - changed 5 experiments to multi-threaded
13        * global_ocean.90x40x15
14        * obcs_ctrl
15        * offline_exf_seaice
16        * tutorial_dic_adjoffline
17        * tutorial_tracer_adjsens
18        changed reference output for those that crossed tile boundaries
19        (changed choices of gradient check positions)
20      - temporary bug fix in grdchk_loc.F for obcs
21    
22    o genmake2 & testreport
23      - add target "obj" (just for OBJFILES files) to Makefile;
24      - add option to specify FEXTRAFLAGS on command line.
25    o pkg/mypackage:
26      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
27    
28    checkpoint63a (2011/08/02)
29    o pkg/diagnostics (velocity potential):
30      - fix velocity-potential calculation when using OBCS: balance net inflow
31        at each level (new S/R OBCS_DIAG_BALANCE).
32      - fix some of the problems with OBCS in stream-function calculation.
33    o pkg/exf/exf_readparms.F
34      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
35        EXF_NML_OBCS) more consistent, so that you need not have these lists
36        in data.exf when they are not used.
37    o optim/optim_readdata.F:
38      - add some output about obcs variables that might help debugging
39      - add a check about nvarlength
40    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
41    o pkg/diagnostics (velocity potential):
42      - fix mask for OBCS (still problems in stream-function with OBCS);
43      - add specific parameter (default = main code CG2D params) for solver;
44      - in case of poor convergence, use solution corresponding to lowest residual.
45    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
46      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
47      and should be avoided where possible.
48    o model/src (rStar):
49      - include r* effect on reference-state (PhiRef) in totPhiHyd
50        (so that it's really the potential anomaly at the cell center);
51        affect solution only if z* with full pressure in EOS.
52      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
53        update output (because of z* in totPhiHyd and viscA4 changes);
54      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
55        @ constant r) until interpolation at constant r is implemented.
56    o pkg/diagnostics
57      - fix RCENTER diagnostics in case cell center is not at interface middle
58    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
59      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
60      that THETA and SALT are "conservative temperature" and "absolute
61      salinity"
62    o pkg/ctrl
63      - fix computation of endrec in s/r ctrl_init_rec
64      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
65    o pkg/seaice/seaice_growth.F
66      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
67        remove then obsolete STORE directives
68      - fix STORE directives for tice and tices, so that only the
69        appropriate part of the fields are stored (and not the entire
70        field); update global_ocean.cs32x15.seaice AD output.
71      - cosmetic changes: adjust CPP flags and indentation for better
72        legibilty
73    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
74      Chris Wilson)
75    o pkg/gmredi:
76       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
77       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
78    
79    checkpoint63  (2011/07/11)
80    o pkg/exch2:
81     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
82     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
83       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
84       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
85    o pkg/diagnostics:
86     - deal with pairs of post-processed diags which are computed together; in
87       particular, re-order list of diags within 1 file to save 2nd computation.
88     - add S/R to compute velocity stream-function (called after velocity-potential
89       calculation) from divergence free transport -> new diagnostics "PsiVEL".
90     - add parameter to select grid-point location where PsiVEL == 0.
91    o eesupp/src:
92       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
93       (specific S/R needed with exch2 topology - for now, just print an error msg)
94    o pkg/shelfice
95     - Implement friction velocity-dependent transfer coefficients following
96       Holland and Jenkins, JPO, 1999
97       Original code by M. Losch with small modifs.
98       Enable with CPP option SHI_ALLOW_GAMMAFRICT
99       and runtime flag SHELFICEuseGammaFrict
100    o verification lab_sea & global_ocean.cs32x15:
101     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
102       does not miss some dependencies (but is slower) and also works with many files
103       (default makedepend limitation for AD built).
104     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
105    o pkg/diagnostics:
106     - add run-time parameter "useMissingValue" (def=False) to fill land-point
107        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
108       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
109     - Extend the use of "missing_value" setting from data.diagnostics for the case
110       of counter-diagnostics (where fraction-weight is zero). This applies both to
111       MNC and MDS output files.
112    o pkg/seaice/seaice_growth.F:
113      - add 'a priori' cap of latent heat flux based on actual mass considerations
114        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
115        non-legacy seaice_solve4temp.
116      - add diagnostic of the residual sublimation freshwater flux (the freshwater
117        flux taken from the ocean if the total actual latent heat fluxes exceed
118        the maximum)
119      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
120       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
121      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
122       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
123      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
124      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
125    o verification 1D_ocean_ice_column:
126       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
127       update results
128    o pkg/diagnostics:
129     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
130       which are not filled-up but computed from other diags ; In this case, the mate
131       diag points to the primary (filled-up) diag to used for post processing.
132     - Update Velocity-potential computation using post-processed diag framework.
133     ==> Change the ordering of fields and time-periods in MDS output file
134       when using periodic averaging: now writes one time record with the full set
135       of fields for this time period, then the next time reccord (it used to be
136       one field with the full set of time records then the next field).
137         Note: this is now similar to NetCDF (MNC) output file. <==
138    
139    checkpoint62z (2011/06/21)
140    o adjoint monitor:
141     - Add adjoint monitor output for packages exf, seaice
142       and update relevant testreport output
143    o pkg/seaice:
144     - re-order diags inits so that they appear in order in available_diagnostics.log
145     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
146       area/heff/hsnow preceeding thermodynamic growth/melt.
147     - modified diag: SIdA; output actual effect, as the description states.
148     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
149     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
150       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
151        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
152     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
153     - added diagnostics for seaice generic tracers (SItr*).
154     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
155     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
156     I. Fenty: 18-Jun-2011:
157     Minor changes to seaice package:
158     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
159        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
160       - Differentiated "regularization variables" from "floor variables"
161        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
162        * hiceMin became SEAICE_hice_reg (old hiceMin)
163          (with _reg meaning regularization variable)
164       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
165        so as to ensure energy conservation when going between phases
166      - A22 was not used anywhere
167     2) Changed regularization procedure for heffActual and hsnowActual to ensure
168        well-boundedness and smooth adjoint in seaice_growth.F
169     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
170        because the old regularization always set heffActual >= 0.05 cm
171     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
172        on AREA when HEFF > 0.
173      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
174        requiring that DISABLE_AREA_FLOOR *not* be defined
175     Affected verifications:
176      - 1D_ocean_ice_column (output.txt output_adm.txt)
177      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
178    o pkg/diagnostics:
179      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
180      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
181        (was _RL, now integer) with option = 0 to retrieve all levels.
182      - add pieces of code to compute velocity potential at each level (new diagnostics
183        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
184        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
185      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
186        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
187        and in diagnostics_fract_fill.F (do not need a valid pointer for the
188        diagnostics counter-mate); check that definition of counter-diagnostic
189        includes a valid counter-mate (in diagnostics_set_levels.F).
190    o model/src (rStar):
191      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
192        affect solution only if z* with full pressure in EOS;
193        update output of test-exp global_ocean.90x40x15.
194    o pkg/seaice:
195      - introduce siEps=1e-5 parameter
196      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
197      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
198      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
199        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
200        as well as ice cover age and ridging index (attached to AREA).
201        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
202        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
203        Up to SItrMaxNum=3 tracers can be used simultaneously.
204    o pkg/salt_plume:
205      -introduce SPsalFRAC run time parameter that sets the fraction of the
206       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
207       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
208    o model debug options:
209      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
210        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
211      - Refine debug-msg printing selection (3 new levels):
212        debugMode  : controls printing of debug messages (sequence of S/R calls).
213        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
214         debLevZero =  0 ; /* level of disabled aux. msg printing */
215         debLevA =  1 ; /* level of minimum  aux. msg printing */
216         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
217         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
218         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
219         debLevE =  5 ; /* level of extensive debug printing */
220        New debugLevel default: with default debugMode value (=F),
221          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
222          and if debugMode=T, default debugLevel = 4 (debLevD).
223        Relation with previous settings:
224         debLevB (=2) corresponds to former debLevA (=1)
225         debLevD (=4) corresponds to former debLevB (=2)
226        Note:
227         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
228         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
229            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
230      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
231        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
232    o pkg/obcs:
233      - change OBCSfixTopo default from True to False (should not change the results);
234        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
235    o pkg/thsice:
236      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
237        2nd layer seaice sublimation (unlikely to happen)
238      - use Interior mask for OBCS in thsice_advection.F (similar to what is
239        done in gad_advection & seaice_advection).
240    o adjoint:
241      bug fix spotted by Gael Forget:
242      seaice_advection and thsice_advection still had
243      legacy CPP options to avoid CS corner updates for adjoint
244    o pkg/seaice:
245      => Change some of the defaults (2011/05/29):
246         - change SEAICEuseFluxForm default (from False to True)
247         - change DIFF1 default (from 0.004 m/s to 0. m/s)
248         And print warnings if DIFF1 is not set in data.seaice and centered
249          avection scheme is used without any diffusion.
250      also:
251      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
252      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
253      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
254        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
255        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
256      update results of test exp.:
257         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
258             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
259             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
260         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
261         seaice_obcs: output (SEAICEuseFluxForm=T)
262      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
263          for standard fwd & AD lab_sea tests (to keep the same output).
264    o pkg/seaice/seaice_growth.F:
265      - use Ian Fenty's capping formulas for actual ice
266      thickness thoughout EVOLUTION branch.
267      - put treatment pathological case #2) in CPP brackets
268      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
269      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
270    o pkg/seaice:
271      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
272      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
273      also pass fac as a param, which can be 1. (to update the tendency
274      field) or the time step (to update the field itself).
275      - seaice_advdiff.F: for multidim, call seaice_diffusion with
276      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
277      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
278      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
279      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
280    o pkg/seaice:
281      diffusion with centered advection scheme (diffus.F & advect.F):
282      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
283        to just compute the laplacian of input-field.
284      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
285      - fix flux-form version in diffus.F to conserve tracer.
286      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
287       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
288    
289    checkpoint62y (2011/05/26)
290    o pkg/seaice:
291     - seaice_growth.F : in EVOLUTION branch, always include
292       a_QSWbyATM_cover in qnet (as it should be).
293     - verification/global_ocean.cs32x15 : update results accordingly
294       (output.seaice.txt output_adm.seaice.txt).
295    o pkg/seaice + obcs:
296     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
297       equivalent of assuming no tracer gradient outside the OB region.
298       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
299     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
300       after changes above);
301     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
302       only at OB location (instead of over a band of OLx width).
303    o pkg/seaice:
304     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
305       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
306    o pkg/obcs:
307      - split header file "OBCS.h" into 4 separated files:
308        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
309       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
310         (contain no conditional statement which depends on OBCS options).
311      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
312        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
313    o ctrl, cost, grdchk & autodiff pkgs:
314      - make options file more standard (like other {PKG}_OPTIONS.h file but
315        with AD_CONFIG.h); clean-up some of the included header files.
316    o pkg/obcs:
317      - do not mask tracer when applying OB (tracer == 0 could generate problems)
318      - apply tracer OB values to tracer field only at OB location (instead of
319        over a band of OLx width)
320      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
321      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
322        obcs_apply_tloc.F & obcs_apply_sloc.F
323    o obcs in model/src:
324      - call OBCS_APPLY_W only if NonHydrostatic.
325      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
326      - reset dEtaHdt and wVel to zero outside OB interior region ;
327      - leave tracer unchanged outside OB interior region: This has no effect
328        on the solution but just to prevent unrealistic tracer value outside OB.
329      - zero out velocity outside OB interior region: This has no effect on
330        the solution but just to prevent unrealistic velocity outside OB.
331    o obcs and non-lin free-surf:
332       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
333       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
334       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
335       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
336       update results of test-exp. exp4(nlfs).
337    o exp4 (nlfs) test-exp:
338       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
339       with NonLin-FreeSurf); update output.nlfs.txt
340    o obcs and 2d/3d solver norm:
341       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
342       and outside OB interior region (will allow to place OB further inside the
343       domain). Depending on the domain, can affects cg2d-Norm (previous
344       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
345       and cg3d-Norm (previous Norm was computed before canceling OB terms),
346       e.g. in tutorial_plume_on_slope.
347      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
348    o pkg rbcs:
349      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
350      - add capability to apply relaxation to horizontal velocity uVel & vVel.
351    o pkg/grdchk: add gradient check for control variable xx_shifwflx
352    o pkg/shelfice/shelfice_init_fixed.F
353      fix CPP-flag combinations
354    o pkg/seaice: Merge iceage code of Pierre Rampal
355      * update/change/correct ice age calculations
356      * add age updates for pathological cases
357      Probably needs more testing...
358    
359    checkpoint62x (2011/05/13)
360    o pkg/mom_vecinv:
361       high-order vorticity scheme: use interior masks (maskInW & S)
362       to zero-out (outside OB) gradient of vorticity.
363    o verification exp.:
364       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
365       hs94.128x64x5 and seaice_obcs ; update results.
366    o pkg/obcs:
367      fix bug in OBeta for YZ sections in obcs_exf_load.F
368    o pkg/ctrl, pkg/shelfice, and optim:
369      - add new control variable xx_shifwflx (fresh water flux underneath ice
370        shelves). This is almost as tedious as obcs-ctrl, because the
371        variables needs its own mask.
372      - add a cost function term that penalizes the deviation of xx_shifwflx
373        from the first guess (zero) in analogy to other control variables
374    o pkg/shelfice:
375      - start basic adjoint
376    o pkg/ctrl:
377      - remove extra 2D field "for good measure" when initializing in
378        ctrl_set_globfld_[xy/xz/yz].F
379      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
380      - improve error messages in ctrl_set_unpack_*
381    o OBC implementation in momentum:
382       use interior masks (maskInC,W & S) in momentum S/R:
383       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
384       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
385       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
386       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
387       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
388        (and also with Leith/Smagorinsky harmonic-viscosity).
389       Update output of experiment dome and exp4 (+nlfs).
390    o exp4 test-exp:
391      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
392        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
393        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
394        time-varying OB at Western-side for wVel (NonHyd); update output.
395      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
396        and biharmonic-viscosity ; also use prescribed time varying OB.
397    o pkg/obcs:
398      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
399    o model/src:
400      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
401      - initialise startTime & nIter0 with unlikely values: allows to set one
402        from the other without ambiguity.
403    o seaice_obcs test-exp.:
404      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
405    o pkg/obcs:
406      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
407        no longer needed with maskInC,W,S in pkg/generic_advdiff.
408    o pkg/seaice:
409      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
410        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
411      - fixed bug in the initialization of sea ice salinity variable HSALT
412        in seaice_init_varia.F  (removed dependence on ICE2WATR)
413    o fizhi-cs test exp.:
414       switch reference output convention for these 2 non-standard test-exp,
415        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
416          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
417       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
418    o model/inc:
419      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
420        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
421    o pkg/seaice:
422      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
423    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
424      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
425        and initial HSALT
426    
427    checkpoint62w (2011/04/26)
428    o pkg/mom_fluxform:
429      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
430      - use parameter "sideDragFactor" in no-slip BC side-drag part.
431      - update output of exp. global_ocean.90x40x15
432    o pkg/mom_vecinv:
433      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
434    o update seaice exp.:
435      use more consistent parameter values (remove "backward compatability only":
436       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
437      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
438       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
439    o update test-exp global_ocean.90x40x15:
440      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
441      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
442      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
443      o turn on zStar & viscA4 in standard set-up (dir input/)
444        and update output files: output.txt & output.dwnslp.txt
445    o new AD-test experiment: obcs_ctrl
446      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
447    o pkg/dic:
448      fix two bugs in handling water vapour pressure in carbonate chemistry
449      and air-sea fluxes. Found by Val Bennington and Galen McKinley
450      (add DIC Option = WATERVAP_BUG to recover old results)
451      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
452    o adding allowInteriorFreezing option to check for water below freezing point
453      at depth and bring the negative heat anomaly to the surface level
454    o pkgs _fields_load:
455      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
456      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
457        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
458        rbcs to get interpolation weights and time reccord number.
459      - fix multi-threading in aim_fields_load.F
460      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
461    o external_fields_load:
462      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
463       interpolation weights) to use in a periodic time-series ; do not divide by
464       time-step to convert to integer:
465       - this fixes case where externForcingPeriod is not multiple of time-step
466          (Thanks to Christopher L. Wolfe)
467       - this fixes case where externForcingPeriod is an odd multiple of time-step
468         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
469      store index of time-record which is currently loaded:
470       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
471       - needed for the adjoint but not yet used because of extensive recomputations;
472         (to be fixed soon)
473    
474    checkpoint62v (2011/04/02)
475    o verification/1D_ocean_ice_column added to test Ian Fenty's
476      pkg/seaice_growth.F modifications for improving sea ice code differentiability
477    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
478      (new velocity statistics after changing maskInW & maskInS definition)
479    o pkg/generic_advdiff with OBCS:
480      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
481      equivalent to assumption of no tracer gradient outside the OB region.
482      This will affect the results if using obcs+biharmonic diffusion.
483      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
484    o pkg/obcs:
485      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
486      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
487      in Interior region. No impact on solution but affects Velocity monitor stats.
488    o pkg/ptracers (adjoint)
489      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
490      tape file for each tracer
491    o model/inc/src and pkg/autodiff: add parameters that allow to turn
492      of parts of the adjoint code at run time. For now, there are only
493      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
494      parameters are set in data.pkg.
495      This is the lazy coward's version of doing this, but still useful for
496      debugging. In order to do it right, everything needs to be moved to
497      pkg/autodiff.
498    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
499      the end; this fixes the adjoint balancing code for open boundaries.
500    o pkg/ctrl:
501      - change behavior of xx_${varname}period to be analogous to exf-conventions:
502        xx_${varname}period =   0.,  means time-independent control part
503        xx_${varname}period = -12., means one-year-periodic monthly control part
504      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
505        clean up ctrl_init a little, remove unused variables
506      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
507      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
508    
509    checkpoint62u (2011/03/15)
510    o model/src:
511      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
512        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
513      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
514        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
515    o pkg/ctrl/obcs/ecco:
516      - remove obsolete, unused, and partially broken code:
517        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
518        ALLOW_CTRL_OBCS_BALANCE
519      - put a stop statement into ecco/cost_obcsvol.F, but also add
520        cost_obcsvol to ecco_ad_diff.list
521    o pkg/ecco: fix counting cost function contributions for obcs (code
522      by Matt M.) and diffkr for diagnostics
523    o pkg/ecco, pkg/ctrl, pkg/grdchk:
524      add cost penalty terms for initial uvel, vvel, eta controls
525      and I/O for prior error files
526    o pkg/mdsio:
527       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
528       (new argument) to check for tiled file in mdsioLocalDir : this fix the
529       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
530    o pkg/ctrl:
531     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
532       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
533       unused and superfluous variables
534     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
535    o pkg/ecco
536     - enable adjoint of Stevens OB
537    o pkg/ctrl/ecco/grdchk:
538      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
539        Fortunately, we do not have any tests for the numerous cpp-flagged
540        option of "obcs as control parameters" so we will never know
541        if this is an improvement (but at least now things compile).
542      - remove an obsolete initialization from ecco_cost_init_barfiles.F
543      - fix some problems within never used ifdefs to make the code compile
544    o pkg/obcs:
545     - Refine Interior mask definition to work with more complex OB (e.g.
546       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
547       read in Interior mask from file. Check if Interior mask is consistent
548       with OB list of indices.
549    o pkg/seaice
550     - beginning code for a seaice tracer package,
551       but currently only used for seaice age: SEAICE_AGE
552       SEAICE_num = 4
553       iTracer = 1: area-weighted ice age
554               = 2: volume-weighted ice age
555               = 3, 4: template for one-year vs. multi-year ice
556       data.seaice has new namelist SEAICE_PARM03 for arrays related to
557       SEAICE_num
558    
559    checkpoint62t (2011/03/05)
560    o pkg/obcs:
561     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
562       then normal component. This ensures that the normal component is set
563       correctly even when it conficts with tangential setting from an other OB.
564       Affects results of test-experiment seaice_obcs: update the output.txt
565    o pkg/obcs:
566     - add code to monitor statistics of dynamical fields at OB.
567     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
568       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
569       - change default: balance the Net inflow through all OB (instead of balancing
570         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
571     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
572       to match Nortern OB inflow (OBCS_balanceFacN=0).
573    o pkg/seaice:
574     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
575    o pkg/seaice (seaice_growth v 1.113):
576     - reverting seaice_growth to v 1.111 in order to have code with exact bit
577       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
578       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
579       runtime flag SEAICEareaFormula is kept but is inactive
580    o model/src:
581     - add new param to scale curvilinear grid distance and area when using
582       a different sphere radius from the grid-files.
583     - test/check multi-threads EXCH applied to local variable (cg2d_x)
584    o adjoint:
585     - enable adjoint of Stevens OB
586     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
587       (a bit delicate because of potentially modified adj. common block structure;
588       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
589    
590    checkpoint62s (2011/02/15)
591    o pkg/seaice (seaice_growth v 1.112):
592     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
593       computing the ice cover tendency from effective thickness tendencies. Include
594       Ian Fenty's formula.
595     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
596       SEAICEareaFormula.
597     - simplify notations for the various d_HEFF/d_AREA terms.
598    o pkg/gmredi:
599     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
600       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
601       add a verification test-run (front_relax.bvp) to test GM_useBVP.
602    o pkg/seaice (seaice_growth v 1.111):
603     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
604     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
605       also melt ice.
606    o pkg/seaice:
607   - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).   - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
608   - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h   - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
609  o pkg/cheapaml:  o pkg/cheapaml:

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