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revision 1.1335 by jmc, Tue Nov 16 17:53:33 2010 UTC revision 1.1485 by jmc, Tue Aug 2 14:04:56 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint63a (2011/08/02)
8    o pkg/diagnostics (velocity potential):
9      - fix velocity-potential calculation when using OBCS: balance net inflow
10        at each level (new S/R OBCS_DIAG_BALANCE).
11      - fix some of the problems with OBCS in stream-function calculation.
12    o pkg/exf/exf_readparms.F
13      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
14        EXF_NML_OBCS) more consistent, so that you need not have these lists
15        in data.exf when they are not used.
16    o optim/optim_readdata.F:
17      - add some output about obcs variables that might help debugging
18      - add a check about nvarlength
19    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
20    o pkg/diagnostics (velocity potential):
21      - fix mask for OBCS (still problems in stream-function with OBCS);
22      - add specific parameter (default = main code CG2D params) for solver;
23      - in case of poor convergence, use solution corresponding to lowest residual.
24    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
25      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
26      and should be avoided where possible.
27    o model/src (rStar):
28      - include r* effect on reference-state (PhiRef) in totPhiHyd
29        (so that it's really the potential anomaly at the cell center);
30        affect solution only if z* with full pressure in EOS.
31      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
32        update output (because of z* in totPhiHyd and viscA4 changes);
33      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
34        @ constant r) until interpolation at constant r is implemented.
35    o pkg/diagnostics
36      - fix RCENTER diagnostics in case cell center is not at interface middle
37    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
38      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
39      that THETA and SALT are "conservative temperature" and "absolute
40      salinity"
41    o pkg/ctrl
42      - fix computation of endrec in s/r ctrl_init_rec
43      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
44    o pkg/seaice/seaice_growth.F
45      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
46        remove then obsolete STORE directives
47      - fix STORE directives for tice and tices, so that only the
48        appropriate part of the fields are stored (and not the entire
49        field); update global_ocean.cs32x15.seaice AD output.
50      - cosmetic changes: adjust CPP flags and indentation for better
51        legibilty
52    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
53      Chris Wilson)
54    o pkg/gmredi:
55       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
56       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
57    
58    checkpoint63  (2011/07/11)
59    o pkg/exch2:
60     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
61     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
62       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
63       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
64    o pkg/diagnostics:
65     - deal with pairs of post-processed diags which are computed together; in
66       particular, re-order list of diags within 1 file to save 2nd computation.
67     - add S/R to compute velocity stream-function (called after velocity-potential
68       calculation) from divergence free transport -> new diagnostics "PsiVEL".
69     - add parameter to select grid-point location where PsiVEL == 0.
70    o eesupp/src:
71       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
72       (specific S/R needed with exch2 topology - for now, just print an error msg)
73    o pkg/shelfice
74     - Implement friction velocity-dependent transfer coefficients following
75       Holland and Jenkins, JPO, 1999
76       Original code by M. Losch with small modifs.
77       Enable with CPP option SHI_ALLOW_GAMMAFRICT
78       and runtime flag SHELFICEuseGammaFrict
79    o verification lab_sea & global_ocean.cs32x15:
80     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
81       does not miss some dependencies (but is slower) and also works with many files
82       (default makedepend limitation for AD built).
83     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
84    o pkg/diagnostics:
85     - add run-time parameter "useMissingValue" (def=False) to fill land-point
86        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
87       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
88     - Extend the use of "missing_value" setting from data.diagnostics for the case
89       of counter-diagnostics (where fraction-weight is zero). This applies both to
90       MNC and MDS output files.
91    o pkg/seaice/seaice_growth.F:
92      - add 'a priori' cap of latent heat flux based on actual mass considerations
93        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
94        non-legacy seaice_solve4temp.
95      - add diagnostic of the residual sublimation freshwater flux (the freshwater
96        flux taken from the ocean if the total actual latent heat fluxes exceed
97        the maximum)
98      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
99       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
100      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
101       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
102      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
103      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
104    o verification 1D_ocean_ice_column:
105       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
106       update results
107    o pkg/diagnostics:
108     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
109       which are not filled-up but computed from other diags ; In this case, the mate
110       diag points to the primary (filled-up) diag to used for post processing.
111     - Update Velocity-potential computation using post-processed diag framework.
112     ==> Change the ordering of fields and time-periods in MDS output file
113       when using periodic averaging: now writes one time record with the full set
114       of fields for this time period, then the next time reccord (it used to be
115       one field with the full set of time records then the next field).
116         Note: this is now similar to NetCDF (MNC) output file. <==
117    
118    checkpoint62z (2011/06/21)
119    o adjoint monitor:
120     - Add adjoint monitor output for packages exf, seaice
121       and update relevant testreport output
122    o pkg/seaice:
123     - re-order diags inits so that they appear in order in available_diagnostics.log
124     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
125       area/heff/hsnow preceeding thermodynamic growth/melt.
126     - modified diag: SIdA; output actual effect, as the description states.
127     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
128     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
129       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
130        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
131     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
132     - added diagnostics for seaice generic tracers (SItr*).
133     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
134     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
135     I. Fenty: 18-Jun-2011:
136     Minor changes to seaice package:
137     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
138        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
139       - Differentiated "regularization variables" from "floor variables"
140        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
141        * hiceMin became SEAICE_hice_reg (old hiceMin)
142          (with _reg meaning regularization variable)
143       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
144        so as to ensure energy conservation when going between phases
145      - A22 was not used anywhere
146     2) Changed regularization procedure for heffActual and hsnowActual to ensure
147        well-boundedness and smooth adjoint in seaice_growth.F
148     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
149        because the old regularization always set heffActual >= 0.05 cm
150     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
151        on AREA when HEFF > 0.
152      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
153        requiring that DISABLE_AREA_FLOOR *not* be defined
154     Affected verifications:
155      - 1D_ocean_ice_column (output.txt output_adm.txt)
156      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
157    o pkg/diagnostics:
158      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
159      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
160        (was _RL, now integer) with option = 0 to retrieve all levels.
161      - add pieces of code to compute velocity potential at each level (new diagnostics
162        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
163        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
164      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
165        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
166        and in diagnostics_fract_fill.F (do not need a valid pointer for the
167        diagnostics counter-mate); check that definition of counter-diagnostic
168        includes a valid counter-mate (in diagnostics_set_levels.F).
169    o model/src (rStar):
170      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
171        affect solution only if z* with full pressure in EOS;
172        update output of test-exp global_ocean.90x40x15.
173    o pkg/seaice:
174      - introduce siEps=1e-5 parameter
175      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
176      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
177      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
178        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
179        as well as ice cover age and ridging index (attached to AREA).
180        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
181        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
182        Up to SItrMaxNum=3 tracers can be used simultaneously.
183    o pkg/salt_plume:
184      -introduce SPsalFRAC run time parameter that sets the fraction of the
185       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
186       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
187    o model debug options:
188      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
189        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
190      - Refine debug-msg printing selection (3 new levels):
191        debugMode  : controls printing of debug messages (sequence of S/R calls).
192        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
193         debLevZero =  0 ; /* level of disabled aux. msg printing */
194         debLevA =  1 ; /* level of minimum  aux. msg printing */
195         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
196         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
197         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
198         debLevE =  5 ; /* level of extensive debug printing */
199        New debugLevel default: with default debugMode value (=F),
200          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
201          and if debugMode=T, default debugLevel = 4 (debLevD).
202        Relation with previous settings:
203         debLevB (=2) corresponds to former debLevA (=1)
204         debLevD (=4) corresponds to former debLevB (=2)
205        Note:
206         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
207         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
208            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
209      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
210        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
211    o pkg/obcs:
212      - change OBCSfixTopo default from True to False (should not change the results);
213        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
214    o pkg/thsice:
215      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
216        2nd layer seaice sublimation (unlikely to happen)
217      - use Interior mask for OBCS in thsice_advection.F (similar to what is
218        done in gad_advection & seaice_advection).
219    o adjoint:
220      bug fix spotted by Gael Forget:
221      seaice_advection and thsice_advection still had
222      legacy CPP options to avoid CS corner updates for adjoint
223    o pkg/seaice:
224      => Change some of the defaults (2011/05/29):
225         - change SEAICEuseFluxForm default (from False to True)
226         - change DIFF1 default (from 0.004 m/s to 0. m/s)
227         And print warnings if DIFF1 is not set in data.seaice and centered
228          avection scheme is used without any diffusion.
229      also:
230      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
231      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
232      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
233        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
234        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
235      update results of test exp.:
236         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
237             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
238             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
239         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
240         seaice_obcs: output (SEAICEuseFluxForm=T)
241      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
242          for standard fwd & AD lab_sea tests (to keep the same output).
243    o pkg/seaice/seaice_growth.F:
244      - use Ian Fenty's capping formulas for actual ice
245      thickness thoughout EVOLUTION branch.
246      - put treatment pathological case #2) in CPP brackets
247      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
248      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
249    o pkg/seaice:
250      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
251      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
252      also pass fac as a param, which can be 1. (to update the tendency
253      field) or the time step (to update the field itself).
254      - seaice_advdiff.F: for multidim, call seaice_diffusion with
255      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
256      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
257      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
258      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
259    o pkg/seaice:
260      diffusion with centered advection scheme (diffus.F & advect.F):
261      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
262        to just compute the laplacian of input-field.
263      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
264      - fix flux-form version in diffus.F to conserve tracer.
265      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
266       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
267    
268    checkpoint62y (2011/05/26)
269    o pkg/seaice:
270     - seaice_growth.F : in EVOLUTION branch, always include
271       a_QSWbyATM_cover in qnet (as it should be).
272     - verification/global_ocean.cs32x15 : update results accordingly
273       (output.seaice.txt output_adm.seaice.txt).
274    o pkg/seaice + obcs:
275     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
276       equivalent of assuming no tracer gradient outside the OB region.
277       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
278     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
279       after changes above);
280     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
281       only at OB location (instead of over a band of OLx width).
282    o pkg/seaice:
283     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
284       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
285    o pkg/obcs:
286      - split header file "OBCS.h" into 4 separated files:
287        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
288       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
289         (contain no conditional statement which depends on OBCS options).
290      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
291        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
292    o ctrl, cost, grdchk & autodiff pkgs:
293      - make options file more standard (like other {PKG}_OPTIONS.h file but
294        with AD_CONFIG.h); clean-up some of the included header files.
295    o pkg/obcs:
296      - do not mask tracer when applying OB (tracer == 0 could generate problems)
297      - apply tracer OB values to tracer field only at OB location (instead of
298        over a band of OLx width)
299      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
300      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
301        obcs_apply_tloc.F & obcs_apply_sloc.F
302    o obcs in model/src:
303      - call OBCS_APPLY_W only if NonHydrostatic.
304      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
305      - reset dEtaHdt and wVel to zero outside OB interior region ;
306      - leave tracer unchanged outside OB interior region: This has no effect
307        on the solution but just to prevent unrealistic tracer value outside OB.
308      - zero out velocity outside OB interior region: This has no effect on
309        the solution but just to prevent unrealistic velocity outside OB.
310    o obcs and non-lin free-surf:
311       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
312       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
313       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
314       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
315       update results of test-exp. exp4(nlfs).
316    o exp4 (nlfs) test-exp:
317       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
318       with NonLin-FreeSurf); update output.nlfs.txt
319    o obcs and 2d/3d solver norm:
320       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
321       and outside OB interior region (will allow to place OB further inside the
322       domain). Depending on the domain, can affects cg2d-Norm (previous
323       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
324       and cg3d-Norm (previous Norm was computed before canceling OB terms),
325       e.g. in tutorial_plume_on_slope.
326      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
327    o pkg rbcs:
328      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
329      - add capability to apply relaxation to horizontal velocity uVel & vVel.
330    o pkg/grdchk: add gradient check for control variable xx_shifwflx
331    o pkg/shelfice/shelfice_init_fixed.F
332      fix CPP-flag combinations
333    o pkg/seaice: Merge iceage code of Pierre Rampal
334      * update/change/correct ice age calculations
335      * add age updates for pathological cases
336      Probably needs more testing...
337    
338    checkpoint62x (2011/05/13)
339    o pkg/mom_vecinv:
340       high-order vorticity scheme: use interior masks (maskInW & S)
341       to zero-out (outside OB) gradient of vorticity.
342    o verification exp.:
343       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
344       hs94.128x64x5 and seaice_obcs ; update results.
345    o pkg/obcs:
346      fix bug in OBeta for YZ sections in obcs_exf_load.F
347    o pkg/ctrl, pkg/shelfice, and optim:
348      - add new control variable xx_shifwflx (fresh water flux underneath ice
349        shelves). This is almost as tedious as obcs-ctrl, because the
350        variables needs its own mask.
351      - add a cost function term that penalizes the deviation of xx_shifwflx
352        from the first guess (zero) in analogy to other control variables
353    o pkg/shelfice:
354      - start basic adjoint
355    o pkg/ctrl:
356      - remove extra 2D field "for good measure" when initializing in
357        ctrl_set_globfld_[xy/xz/yz].F
358      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
359      - improve error messages in ctrl_set_unpack_*
360    o OBC implementation in momentum:
361       use interior masks (maskInC,W & S) in momentum S/R:
362       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
363       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
364       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
365       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
366       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
367        (and also with Leith/Smagorinsky harmonic-viscosity).
368       Update output of experiment dome and exp4 (+nlfs).
369    o exp4 test-exp:
370      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
371        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
372        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
373        time-varying OB at Western-side for wVel (NonHyd); update output.
374      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
375        and biharmonic-viscosity ; also use prescribed time varying OB.
376    o pkg/obcs:
377      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
378    o model/src:
379      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
380      - initialise startTime & nIter0 with unlikely values: allows to set one
381        from the other without ambiguity.
382    o seaice_obcs test-exp.:
383      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
384    o pkg/obcs:
385      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
386        no longer needed with maskInC,W,S in pkg/generic_advdiff.
387    o pkg/seaice:
388      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
389        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
390      - fixed bug in the initialization of sea ice salinity variable HSALT
391        in seaice_init_varia.F  (removed dependence on ICE2WATR)
392    o fizhi-cs test exp.:
393       switch reference output convention for these 2 non-standard test-exp,
394        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
395          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
396       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
397    o model/inc:
398      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
399        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
400    o pkg/seaice:
401      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
402    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
403      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
404        and initial HSALT
405    
406    checkpoint62w (2011/04/26)
407    o pkg/mom_fluxform:
408      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
409      - use parameter "sideDragFactor" in no-slip BC side-drag part.
410      - update output of exp. global_ocean.90x40x15
411    o pkg/mom_vecinv:
412      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
413    o update seaice exp.:
414      use more consistent parameter values (remove "backward compatability only":
415       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
416      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
417       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
418    o update test-exp global_ocean.90x40x15:
419      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
420      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
421      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
422      o turn on zStar & viscA4 in standard set-up (dir input/)
423        and update output files: output.txt & output.dwnslp.txt
424    o new AD-test experiment: obcs_ctrl
425      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
426    o pkg/dic:
427      fix two bugs in handling water vapour pressure in carbonate chemistry
428      and air-sea fluxes. Found by Val Bennington and Galen McKinley
429      (add DIC Option = WATERVAP_BUG to recover old results)
430      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
431    o adding allowInteriorFreezing option to check for water below freezing point
432      at depth and bring the negative heat anomaly to the surface level
433    o pkgs _fields_load:
434      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
435      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
436        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
437        rbcs to get interpolation weights and time reccord number.
438      - fix multi-threading in aim_fields_load.F
439      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
440    o external_fields_load:
441      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
442       interpolation weights) to use in a periodic time-series ; do not divide by
443       time-step to convert to integer:
444       - this fixes case where externForcingPeriod is not multiple of time-step
445          (Thanks to Christopher L. Wolfe)
446       - this fixes case where externForcingPeriod is an odd multiple of time-step
447         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
448      store index of time-record which is currently loaded:
449       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
450       - needed for the adjoint but not yet used because of extensive recomputations;
451         (to be fixed soon)
452    
453    checkpoint62v (2011/04/02)
454    o verification/1D_ocean_ice_column added to test Ian Fenty's
455      pkg/seaice_growth.F modifications for improving sea ice code differentiability
456    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
457      (new velocity statistics after changing maskInW & maskInS definition)
458    o pkg/generic_advdiff with OBCS:
459      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
460      equivalent to assumption of no tracer gradient outside the OB region.
461      This will affect the results if using obcs+biharmonic diffusion.
462      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
463    o pkg/obcs:
464      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
465      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
466      in Interior region. No impact on solution but affects Velocity monitor stats.
467    o pkg/ptracers (adjoint)
468      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
469      tape file for each tracer
470    o model/inc/src and pkg/autodiff: add parameters that allow to turn
471      of parts of the adjoint code at run time. For now, there are only
472      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
473      parameters are set in data.pkg.
474      This is the lazy coward's version of doing this, but still useful for
475      debugging. In order to do it right, everything needs to be moved to
476      pkg/autodiff.
477    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
478      the end; this fixes the adjoint balancing code for open boundaries.
479    o pkg/ctrl:
480      - change behavior of xx_${varname}period to be analogous to exf-conventions:
481        xx_${varname}period =   0.,  means time-independent control part
482        xx_${varname}period = -12., means one-year-periodic monthly control part
483      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
484        clean up ctrl_init a little, remove unused variables
485      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
486      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
487    
488    checkpoint62u (2011/03/15)
489    o model/src:
490      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
491        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
492      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
493        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
494    o pkg/ctrl/obcs/ecco:
495      - remove obsolete, unused, and partially broken code:
496        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
497        ALLOW_CTRL_OBCS_BALANCE
498      - put a stop statement into ecco/cost_obcsvol.F, but also add
499        cost_obcsvol to ecco_ad_diff.list
500    o pkg/ecco: fix counting cost function contributions for obcs (code
501      by Matt M.) and diffkr for diagnostics
502    o pkg/ecco, pkg/ctrl, pkg/grdchk:
503      add cost penalty terms for initial uvel, vvel, eta controls
504      and I/O for prior error files
505    o pkg/mdsio:
506       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
507       (new argument) to check for tiled file in mdsioLocalDir : this fix the
508       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
509    o pkg/ctrl:
510     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
511       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
512       unused and superfluous variables
513     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
514    o pkg/ecco
515     - enable adjoint of Stevens OB
516    o pkg/ctrl/ecco/grdchk:
517      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
518        Fortunately, we do not have any tests for the numerous cpp-flagged
519        option of "obcs as control parameters" so we will never know
520        if this is an improvement (but at least now things compile).
521      - remove an obsolete initialization from ecco_cost_init_barfiles.F
522      - fix some problems within never used ifdefs to make the code compile
523    o pkg/obcs:
524     - Refine Interior mask definition to work with more complex OB (e.g.
525       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
526       read in Interior mask from file. Check if Interior mask is consistent
527       with OB list of indices.
528    o pkg/seaice
529     - beginning code for a seaice tracer package,
530       but currently only used for seaice age: SEAICE_AGE
531       SEAICE_num = 4
532       iTracer = 1: area-weighted ice age
533               = 2: volume-weighted ice age
534               = 3, 4: template for one-year vs. multi-year ice
535       data.seaice has new namelist SEAICE_PARM03 for arrays related to
536       SEAICE_num
537    
538    checkpoint62t (2011/03/05)
539    o pkg/obcs:
540     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
541       then normal component. This ensures that the normal component is set
542       correctly even when it conficts with tangential setting from an other OB.
543       Affects results of test-experiment seaice_obcs: update the output.txt
544    o pkg/obcs:
545     - add code to monitor statistics of dynamical fields at OB.
546     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
547       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
548       - change default: balance the Net inflow through all OB (instead of balancing
549         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
550     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
551       to match Nortern OB inflow (OBCS_balanceFacN=0).
552    o pkg/seaice:
553     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
554    o pkg/seaice (seaice_growth v 1.113):
555     - reverting seaice_growth to v 1.111 in order to have code with exact bit
556       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
557       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
558       runtime flag SEAICEareaFormula is kept but is inactive
559    o model/src:
560     - add new param to scale curvilinear grid distance and area when using
561       a different sphere radius from the grid-files.
562     - test/check multi-threads EXCH applied to local variable (cg2d_x)
563    o adjoint:
564     - enable adjoint of Stevens OB
565     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
566       (a bit delicate because of potentially modified adj. common block structure;
567       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
568    
569    checkpoint62s (2011/02/15)
570    o pkg/seaice (seaice_growth v 1.112):
571     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
572       computing the ice cover tendency from effective thickness tendencies. Include
573       Ian Fenty's formula.
574     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
575       SEAICEareaFormula.
576     - simplify notations for the various d_HEFF/d_AREA terms.
577    o pkg/gmredi:
578     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
579       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
580       add a verification test-run (front_relax.bvp) to test GM_useBVP.
581    o pkg/seaice (seaice_growth v 1.111):
582     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
583     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
584       also melt ice.
585    o pkg/seaice:
586     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
587     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
588    o pkg/cheapaml:
589     - from Nico Wienders: New version of this package.
590    o pkg/flt:
591     - add CPP options to prevent floats to re-enter the opposite side of
592       a periodic domain (default: keep periodicity)
593    o pkg/gmredi:
594     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
595       (needed for multi-dim advection).
596     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
597    o model/src:
598     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
599    o tutorial_tracer_adjsens
600     - extend to NLFS and replace maskC by hFacC
601       (change reference output accordingly)
602    
603    checkpoint62r (2011/01/24)
604    o testreport:
605     - add option -deloutp (-do) to remove output file after successful run
606     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
607       extract exact list of procs from this file ; adjust COMMAND by
608       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
609    o pkg/ecco: replace old ineffective way of penalizing deviations from
610      first guess (of obcs) with code by Matt Mazloff
611    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
612      exf/cal
613      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
614        and handle case of obcs?period == 0
615        Not affected by these changes: There is still an inconsistency in
616        the computation of start/endrec for the obcs variables for ALLOW_CAL
617        defined (see comment by Menemenlis, 7-Mar-2003)
618      - make S/R ctrl_get_gen_rec return something meaningful even if
619        ALLOW_CAL is not defined
620      - ctrl_getobcs?: simplify code so that it does not need to use
621                       S/R exf_swapfields
622    o testreport:
623       allow to test MPI with different number of processors for each experiment:
624       create file "SIZE.h.mpi" in each build dir.
625       Note: update of "-command" argument not yet implemented.
626    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
627      alleviate the need for additional 3D tapes when using
628      the non-inear free surface in the adjoint. This is done
629      by adding an 'update' of hfacc etc. to their current
630      value at the beginning of forward_step.F.
631    o pkg/seaice
632      seaice_lsr: move stress-divergence computations out of outer pseudo-
633      timestepping loop
634    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
635      up, so that the calls of the ctrl_* subroutines are really at the end
636      of the routine.
637    o pkg/gmredi:
638      allow to specify a 2-D horizontal map and a 1-D vertical profil
639      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
640    o pkg/seaice:
641      move lsr iterations from seaice_dynsolver to seaice_lsr.
642    o pkg/seaice:
643      reduce memory footprint of seaice mutldim advection tapes,
644      by using a 2D tape independent of the generic_advdiff ones,
645      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
646    
647    checkpoint62q (2010/12/29)
648    o model/src:
649      - check horizontal grid-spacing for unset or zero/negative values.
650      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
651    o pkg/flt:
652      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
653      - precision of input and output files set according to readBinaryPrec
654        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
655      - initial float position from tiled file was not converted to index space
656        (looks like a bug): fixed to make it similar to initial pos. global file.
657    o global_ocean.cs32x15:
658       change SIZE.h of AD set-up to get same tiling as with MPI.
659       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
660    o model/src:
661       add flag to control printing of domain fields (bathymetry, hFac ...) in
662       ini_mask_etc (call to plot_fieds_xy*).
663    o pkg/thsice:
664       if useEXF, some forcing fields are not valid in overlap: fixed by computing
665       over the interior only + apply EXCH at the end (like with SEAICE advection).
666    o pkg/mdsio:
667      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
668        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
669      - change barrier call for safe multi-threads access to 3-D shared buffer.
670      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
671      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
672        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
673    o pkg/flt:
674      - add fourth-order Runge-Kutta integration
675      - add basic exch2 support (only 1 facet supported so far!)
676    o pkg/mdsio+rw:
677      new S/R to read local (or tile independent) vector (read counterpart of
678       mds_writevec_loc, and front-end write_glvec_rl/rs).
679    o global_ocean.cs32x15: additional input_ad.seaice experiment
680        that uses pkg/seaice rather than pkg/thsice.
681        (using multidim advection for seaice)
682    o towards more F95 syntax for array specification in namelist:
683      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
684        of all verification experiments.
685           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
686          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
687      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
688    o global_ocean.cs32x15: additional input.seaice experiment
689        that uses pkg/seaice rather than pkg/thsice.
690    
691    checkpoint62p (2010/12/17)
692    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
693        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
694    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
695        allow for use of multim. advection in seaice adjoint.
696    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
697      - first attempt to close budgets by taking into account the freshwater
698        flux implied by the sublimation of snow and ice. So far only the
699        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
700        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
701    o eesupp/src:
702      new S/R with new option (NML_EXTENDED_F77) to change array specification
703      from F95 standard to commonly accepted extended F77 form.
704      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
705      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
706      for less tolerant f77 compiler (e.g., pgf77, g77).
707    o globalFiles:
708      commented out in parameter file "data" since it's not safe with MPI
709      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
710      in this case); no longer commented out in restart test (tst_2+2).
711    o add adTapeDir to specify a special directory where adjoint tapes are
712      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
713      and cannot be used together with mdsioLocalDir.
714    o nesting pkgs:
715      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
716      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
717      - add parameter files + utils dir + output from short run on beagle.
718    o pkg/seaice:
719        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
720    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
721      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
722    
723    checkpoint62o (2010/11/25)
724    o pkg/exf:
725      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
726    o pkg/seaice:
727      - seaice_ocean_stress: split a loop for better vectorization of the
728        adjoint code
729      - seaice_growth.F: fix bug in conservation of freshwater connected to
730        capping of heff, put contribution into d_HEFFbyNEG
731      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
732        by something more sensible (parameters that are what their name implies)
733      - change some defaults, so that by default exf-parameters are used for
734        things like rhoAir, cpAir,latent/sensible heat parameters, in order
735        to reproduce the old results, many data.seaice now contain funny values
736        for cpAir and latent heat of sublimation
737    o packages_readparms.F: move exf_readparms up in line so that
738        exf-parameters are visible for other packages (e.g. seaice)
739    o debugMode & debugLevel=2:
740      - differentiate between debugMode & debugLevel=2:
741        debugMode: controls printing of debug messages (sequence of S/R calls).
742        debugLevel: controls printing of algorithm intermediate results and stats.
743      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
744        => allows to print debug-stats without all sequence of call messages.
745      - switch control of debug print from debugLevel to debugMode in many S/R.
746    o pkg/obcs (obcs-sponge):
747        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
748        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
749  o pkg/generic_advdiff:  o pkg/generic_advdiff:
750    - record overlap minimum size for each advection scheme;    - record overlap minimum size for each advection scheme;
751    - refine criteria on overlap minimum size;    - refine criteria on overlap minimum size;

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