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revision 1.1395 by mlosch, Mon Mar 14 10:25:11 2011 UTC revision 1.1484 by jmc, Mon Aug 1 20:47:39 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/diagnostics (velocity potential):
8      - fix velocity-potential calculation when using OBCS: balance net inflow
9        at each level (new S/R OBCS_DIAG_BALANCE).
10      - fix some of the problems with OBCS in stream-function calculation.
11    o pkg/exf/exf_readparms.F
12      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
13        EXF_NML_OBCS) more consistent, so that you need not have these lists
14        in data.exf when they are not used.
15    o optim/optim_readdata.F:
16      - add some output about obcs variables that might help debugging
17      - add a check about nvarlength
18    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
19    o pkg/diagnostics (velocity potential):
20      - fix mask for OBCS (still problems in stream-function with OBCS);
21      - add specific parameter (default = main code CG2D params) for solver;
22      - in case of poor convergence, use solution corresponding to lowest residual.
23    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
24      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
25      and should be avoided where possible.
26    o model/src (rStar):
27      - include r* effect on reference-state (PhiRef) in totPhiHyd
28        (so that it's really the potential anomaly at the cell center);
29        affect solution only if z* with full pressure in EOS.
30      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
31        update output (because of z* in totPhiHyd and viscA4 changes);
32      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
33        @ constant r) until interpolation at constant r is implemented.
34    o pkg/diagnostics
35      - fix RCENTER diagnostics in case cell center is not at interface middle
36    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
37      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
38      that THETA and SALT are "conservative temperature" and "absolute
39      salinity"
40    o pkg/ctrl
41      - fix computation of endrec in s/r ctrl_init_rec
42      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
43    o pkg/seaice/seaice_growth.F
44      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
45        remove then obsolete STORE directives
46      - fix STORE directives for tice and tices, so that only the
47        appropriate part of the fields are stored (and not the entire
48        field); update global_ocean.cs32x15.seaice AD output.
49      - cosmetic changes: adjust CPP flags and indentation for better
50        legibilty
51    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
52      Chris Wilson)
53    o pkg/gmredi:
54       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
55       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
56    
57    checkpoint63 (2011/07/11)
58    o pkg/exch2:
59     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
60     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
61       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
62       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
63    o pkg/diagnostics:
64     - deal with pairs of post-processed diags which are computed together; in
65       particular, re-order list of diags within 1 file to save 2nd computation.
66     - add S/R to compute velocity stream-function (called after velocity-potential
67       calculation) from divergence free transport -> new diagnostics "PsiVEL".
68     - add parameter to select grid-point location where PsiVEL == 0.
69    o eesupp/src:
70       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
71       (specific S/R needed with exch2 topology - for now, just print an error msg)
72    o pkg/shelfice
73     - Implement friction velocity-dependent transfer coefficients following
74       Holland and Jenkins, JPO, 1999
75       Original code by M. Losch with small modifs.
76       Enable with CPP option SHI_ALLOW_GAMMAFRICT
77       and runtime flag SHELFICEuseGammaFrict
78    o verification lab_sea & global_ocean.cs32x15:
79     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
80       does not miss some dependencies (but is slower) and also works with many files
81       (default makedepend limitation for AD built).
82     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
83    o pkg/diagnostics:
84     - add run-time parameter "useMissingValue" (def=False) to fill land-point
85        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
86       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
87     - Extend the use of "missing_value" setting from data.diagnostics for the case
88       of counter-diagnostics (where fraction-weight is zero). This applies both to
89       MNC and MDS output files.
90    o pkg/seaice/seaice_growth.F:
91      - add 'a priori' cap of latent heat flux based on actual mass considerations
92        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
93        non-legacy seaice_solve4temp.
94      - add diagnostic of the residual sublimation freshwater flux (the freshwater
95        flux taken from the ocean if the total actual latent heat fluxes exceed
96        the maximum)
97      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
98       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
99      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
100       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
101      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
102      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
103    o verification 1D_ocean_ice_column:
104       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
105       update results
106    o pkg/diagnostics:
107     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
108       which are not filled-up but computed from other diags ; In this case, the mate
109       diag points to the primary (filled-up) diag to used for post processing.
110     - Update Velocity-potential computation using post-processed diag framework.
111     ==> Change the ordering of fields and time-periods in MDS output file
112       when using periodic averaging: now writes one time record with the full set
113       of fields for this time period, then the next time reccord (it used to be
114       one field with the full set of time records then the next field).
115         Note: this is now similar to NetCDF (MNC) output file. <==
116    
117    checkpoint62z (2011/06/21)
118    o adjoint monitor:
119     - Add adjoint monitor output for packages exf, seaice
120       and update relevant testreport output
121    o pkg/seaice:
122     - re-order diags inits so that they appear in order in available_diagnostics.log
123     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
124       area/heff/hsnow preceeding thermodynamic growth/melt.
125     - modified diag: SIdA; output actual effect, as the description states.
126     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
127     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
128       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
129        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
130     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
131     - added diagnostics for seaice generic tracers (SItr*).
132     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
133     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
134     I. Fenty: 18-Jun-2011:
135     Minor changes to seaice package:
136     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
137        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
138       - Differentiated "regularization variables" from "floor variables"
139        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
140        * hiceMin became SEAICE_hice_reg (old hiceMin)
141          (with _reg meaning regularization variable)
142       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
143        so as to ensure energy conservation when going between phases
144      - A22 was not used anywhere
145     2) Changed regularization procedure for heffActual and hsnowActual to ensure
146        well-boundedness and smooth adjoint in seaice_growth.F
147     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
148        because the old regularization always set heffActual >= 0.05 cm
149     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
150        on AREA when HEFF > 0.
151      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
152        requiring that DISABLE_AREA_FLOOR *not* be defined
153     Affected verifications:
154      - 1D_ocean_ice_column (output.txt output_adm.txt)
155      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
156    o pkg/diagnostics:
157      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
158      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
159        (was _RL, now integer) with option = 0 to retrieve all levels.
160      - add pieces of code to compute velocity potential at each level (new diagnostics
161        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
162        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
163      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
164        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
165        and in diagnostics_fract_fill.F (do not need a valid pointer for the
166        diagnostics counter-mate); check that definition of counter-diagnostic
167        includes a valid counter-mate (in diagnostics_set_levels.F).
168    o model/src (rStar):
169      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
170        affect solution only if z* with full pressure in EOS;
171        update output of test-exp global_ocean.90x40x15.
172    o pkg/seaice:
173      - introduce siEps=1e-5 parameter
174      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
175      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
176      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
177        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
178        as well as ice cover age and ridging index (attached to AREA).
179        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
180        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
181        Up to SItrMaxNum=3 tracers can be used simultaneously.
182    o pkg/salt_plume:
183      -introduce SPsalFRAC run time parameter that sets the fraction of the
184       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
185       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
186    o model debug options:
187      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
188        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
189      - Refine debug-msg printing selection (3 new levels):
190        debugMode  : controls printing of debug messages (sequence of S/R calls).
191        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
192         debLevZero =  0 ; /* level of disabled aux. msg printing */
193         debLevA =  1 ; /* level of minimum  aux. msg printing */
194         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
195         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
196         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
197         debLevE =  5 ; /* level of extensive debug printing */
198        New debugLevel default: with default debugMode value (=F),
199          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
200          and if debugMode=T, default debugLevel = 4 (debLevD).
201        Relation with previous settings:
202         debLevB (=2) corresponds to former debLevA (=1)
203         debLevD (=4) corresponds to former debLevB (=2)
204        Note:
205         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
206         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
207            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
208      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
209        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
210    o pkg/obcs:
211      - change OBCSfixTopo default from True to False (should not change the results);
212        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
213    o pkg/thsice:
214      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
215        2nd layer seaice sublimation (unlikely to happen)
216      - use Interior mask for OBCS in thsice_advection.F (similar to what is
217        done in gad_advection & seaice_advection).
218    o adjoint:
219      bug fix spotted by Gael Forget:
220      seaice_advection and thsice_advection still had
221      legacy CPP options to avoid CS corner updates for adjoint
222    o pkg/seaice:
223      => Change some of the defaults (2011/05/29):
224         - change SEAICEuseFluxForm default (from False to True)
225         - change DIFF1 default (from 0.004 m/s to 0. m/s)
226         And print warnings if DIFF1 is not set in data.seaice and centered
227          avection scheme is used without any diffusion.
228      also:
229      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
230      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
231      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
232        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
233        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
234      update results of test exp.:
235         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
236             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
237             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
238         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
239         seaice_obcs: output (SEAICEuseFluxForm=T)
240      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
241          for standard fwd & AD lab_sea tests (to keep the same output).
242    o pkg/seaice/seaice_growth.F:
243      - use Ian Fenty's capping formulas for actual ice
244      thickness thoughout EVOLUTION branch.
245      - put treatment pathological case #2) in CPP brackets
246      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
247      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
248    o pkg/seaice:
249      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
250      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
251      also pass fac as a param, which can be 1. (to update the tendency
252      field) or the time step (to update the field itself).
253      - seaice_advdiff.F: for multidim, call seaice_diffusion with
254      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
255      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
256      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
257      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
258    o pkg/seaice:
259      diffusion with centered advection scheme (diffus.F & advect.F):
260      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
261        to just compute the laplacian of input-field.
262      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
263      - fix flux-form version in diffus.F to conserve tracer.
264      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
265       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
266    
267    checkpoint62y (2011/05/26)
268    o pkg/seaice:
269     - seaice_growth.F : in EVOLUTION branch, always include
270       a_QSWbyATM_cover in qnet (as it should be).
271     - verification/global_ocean.cs32x15 : update results accordingly
272       (output.seaice.txt output_adm.seaice.txt).
273    o pkg/seaice + obcs:
274     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
275       equivalent of assuming no tracer gradient outside the OB region.
276       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
277     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
278       after changes above);
279     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
280       only at OB location (instead of over a band of OLx width).
281    o pkg/seaice:
282     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
283       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
284    o pkg/obcs:
285      - split header file "OBCS.h" into 4 separated files:
286        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
287       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
288         (contain no conditional statement which depends on OBCS options).
289      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
290        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
291    o ctrl, cost, grdchk & autodiff pkgs:
292      - make options file more standard (like other {PKG}_OPTIONS.h file but
293        with AD_CONFIG.h); clean-up some of the included header files.
294    o pkg/obcs:
295      - do not mask tracer when applying OB (tracer == 0 could generate problems)
296      - apply tracer OB values to tracer field only at OB location (instead of
297        over a band of OLx width)
298      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
299      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
300        obcs_apply_tloc.F & obcs_apply_sloc.F
301    o obcs in model/src:
302      - call OBCS_APPLY_W only if NonHydrostatic.
303      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
304      - reset dEtaHdt and wVel to zero outside OB interior region ;
305      - leave tracer unchanged outside OB interior region: This has no effect
306        on the solution but just to prevent unrealistic tracer value outside OB.
307      - zero out velocity outside OB interior region: This has no effect on
308        the solution but just to prevent unrealistic velocity outside OB.
309    o obcs and non-lin free-surf:
310       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
311       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
312       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
313       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
314       update results of test-exp. exp4(nlfs).
315    o exp4 (nlfs) test-exp:
316       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
317       with NonLin-FreeSurf); update output.nlfs.txt
318    o obcs and 2d/3d solver norm:
319       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
320       and outside OB interior region (will allow to place OB further inside the
321       domain). Depending on the domain, can affects cg2d-Norm (previous
322       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
323       and cg3d-Norm (previous Norm was computed before canceling OB terms),
324       e.g. in tutorial_plume_on_slope.
325      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
326    o pkg rbcs:
327      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
328      - add capability to apply relaxation to horizontal velocity uVel & vVel.
329    o pkg/grdchk: add gradient check for control variable xx_shifwflx
330    o pkg/shelfice/shelfice_init_fixed.F
331      fix CPP-flag combinations
332    o pkg/seaice: Merge iceage code of Pierre Rampal
333      * update/change/correct ice age calculations
334      * add age updates for pathological cases
335      Probably needs more testing...
336    
337    checkpoint62x (2011/05/13)
338    o pkg/mom_vecinv:
339       high-order vorticity scheme: use interior masks (maskInW & S)
340       to zero-out (outside OB) gradient of vorticity.
341    o verification exp.:
342       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
343       hs94.128x64x5 and seaice_obcs ; update results.
344    o pkg/obcs:
345      fix bug in OBeta for YZ sections in obcs_exf_load.F
346    o pkg/ctrl, pkg/shelfice, and optim:
347      - add new control variable xx_shifwflx (fresh water flux underneath ice
348        shelves). This is almost as tedious as obcs-ctrl, because the
349        variables needs its own mask.
350      - add a cost function term that penalizes the deviation of xx_shifwflx
351        from the first guess (zero) in analogy to other control variables
352    o pkg/shelfice:
353      - start basic adjoint
354    o pkg/ctrl:
355      - remove extra 2D field "for good measure" when initializing in
356        ctrl_set_globfld_[xy/xz/yz].F
357      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
358      - improve error messages in ctrl_set_unpack_*
359    o OBC implementation in momentum:
360       use interior masks (maskInC,W & S) in momentum S/R:
361       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
362       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
363       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
364       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
365       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
366        (and also with Leith/Smagorinsky harmonic-viscosity).
367       Update output of experiment dome and exp4 (+nlfs).
368    o exp4 test-exp:
369      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
370        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
371        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
372        time-varying OB at Western-side for wVel (NonHyd); update output.
373      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
374        and biharmonic-viscosity ; also use prescribed time varying OB.
375    o pkg/obcs:
376      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
377    o model/src:
378      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
379      - initialise startTime & nIter0 with unlikely values: allows to set one
380        from the other without ambiguity.
381    o seaice_obcs test-exp.:
382      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
383    o pkg/obcs:
384      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
385        no longer needed with maskInC,W,S in pkg/generic_advdiff.
386    o pkg/seaice:
387      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
388        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
389      - fixed bug in the initialization of sea ice salinity variable HSALT
390        in seaice_init_varia.F  (removed dependence on ICE2WATR)
391    o fizhi-cs test exp.:
392       switch reference output convention for these 2 non-standard test-exp,
393        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
394          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
395       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
396    o model/inc:
397      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
398        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
399    o pkg/seaice:
400      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
401    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
402      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
403        and initial HSALT
404    
405    checkpoint62w (2011/04/26)
406    o pkg/mom_fluxform:
407      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
408      - use parameter "sideDragFactor" in no-slip BC side-drag part.
409      - update output of exp. global_ocean.90x40x15
410    o pkg/mom_vecinv:
411      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
412    o update seaice exp.:
413      use more consistent parameter values (remove "backward compatability only":
414       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
415      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
416       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
417    o update test-exp global_ocean.90x40x15:
418      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
419      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
420      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
421      o turn on zStar & viscA4 in standard set-up (dir input/)
422        and update output files: output.txt & output.dwnslp.txt
423    o new AD-test experiment: obcs_ctrl
424      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
425    o pkg/dic:
426      fix two bugs in handling water vapour pressure in carbonate chemistry
427      and air-sea fluxes. Found by Val Bennington and Galen McKinley
428      (add DIC Option = WATERVAP_BUG to recover old results)
429      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
430    o adding allowInteriorFreezing option to check for water below freezing point
431      at depth and bring the negative heat anomaly to the surface level
432    o pkgs _fields_load:
433      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
434      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
435        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
436        rbcs to get interpolation weights and time reccord number.
437      - fix multi-threading in aim_fields_load.F
438      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
439    o external_fields_load:
440      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
441       interpolation weights) to use in a periodic time-series ; do not divide by
442       time-step to convert to integer:
443       - this fixes case where externForcingPeriod is not multiple of time-step
444          (Thanks to Christopher L. Wolfe)
445       - this fixes case where externForcingPeriod is an odd multiple of time-step
446         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
447      store index of time-record which is currently loaded:
448       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
449       - needed for the adjoint but not yet used because of extensive recomputations;
450         (to be fixed soon)
451    
452    checkpoint62v (2011/04/02)
453    o verification/1D_ocean_ice_column added to test Ian Fenty's
454      pkg/seaice_growth.F modifications for improving sea ice code differentiability
455    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
456      (new velocity statistics after changing maskInW & maskInS definition)
457    o pkg/generic_advdiff with OBCS:
458      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
459      equivalent to assumption of no tracer gradient outside the OB region.
460      This will affect the results if using obcs+biharmonic diffusion.
461      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
462    o pkg/obcs:
463      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
464      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
465      in Interior region. No impact on solution but affects Velocity monitor stats.
466    o pkg/ptracers (adjoint)
467      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
468      tape file for each tracer
469    o model/inc/src and pkg/autodiff: add parameters that allow to turn
470      of parts of the adjoint code at run time. For now, there are only
471      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
472      parameters are set in data.pkg.
473      This is the lazy coward's version of doing this, but still useful for
474      debugging. In order to do it right, everything needs to be moved to
475      pkg/autodiff.
476    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
477      the end; this fixes the adjoint balancing code for open boundaries.
478    o pkg/ctrl:
479      - change behavior of xx_${varname}period to be analogous to exf-conventions:
480        xx_${varname}period =   0.,  means time-independent control part
481        xx_${varname}period = -12., means one-year-periodic monthly control part
482      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
483        clean up ctrl_init a little, remove unused variables
484      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
485      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
486    
487    checkpoint62u (2011/03/15)
488    o model/src:
489      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
490        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
491      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
492        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
493    o pkg/ctrl/obcs/ecco:
494      - remove obsolete, unused, and partially broken code:
495        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
496        ALLOW_CTRL_OBCS_BALANCE
497      - put a stop statement into ecco/cost_obcsvol.F, but also add
498        cost_obcsvol to ecco_ad_diff.list
499  o pkg/ecco: fix counting cost function contributions for obcs (code  o pkg/ecco: fix counting cost function contributions for obcs (code
500    by Matt M.) and diffkr for diagnostics    by Matt M.) and diffkr for diagnostics
501  o pkg/ecco, pkg/ctrl, pkg/grdchk:  o pkg/ecco, pkg/ctrl, pkg/grdchk:

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