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revision 1.1418 by jmc, Thu Apr 28 23:26:39 2011 UTC revision 1.1476 by mlosch, Tue Jul 19 12:54:25 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 add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
8      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
9      that THETA and SALT are "conservative temperature" and "absolute
10      salinity"
11    o pkg/ctrl
12      - fix computation of endrec in s/r ctrl_init_rec
13      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
14    o pkg/seaice/seaice_growth.F
15      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
16        remove then obsolete STORE directives
17      - fix STORE directives for tice and tices, so that only the
18        appropriate part of the fields are stored (and not the entire
19        field)
20      - cosmetic changes: adjust CPP flags and indentation for better
21        legibilty
22    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
23      Chris Wilson)
24    o pkg/gmredi:
25       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
26       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
27    
28    checkpoint63 (2011/07/11)
29    o pkg/exch2:
30     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
31     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
32       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
33       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
34    o pkg/diagnostics:
35     - deal with pairs of post-processed diags which are computed together; in
36       particular, re-order list of diags within 1 file to save 2nd computation.
37     - add S/R to compute velocity stream-function (called after velocity-potential
38       calculation) from divergence free transport -> new diagnostics "PsiVEL".
39     - add parameter to select grid-point location where PsiVEL == 0.
40    o eesupp/src:
41       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
42       (specific S/R needed with exch2 topology - for now, just print an error msg)
43    o pkg/shelfice
44     - Implement friction velocity-dependent transfer coefficients following
45       Holland and Jenkins, JPO, 1999
46       Original code by M. Losch with small modifs.
47       Enable with CPP option SHI_ALLOW_GAMMAFRICT
48       and runtime flag SHELFICEuseGammaFrict
49    o verification lab_sea & global_ocean.cs32x15:
50     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
51       does not miss some dependencies (but is slower) and also works with many files
52       (default makedepend limitation for AD built).
53     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
54    o pkg/diagnostics:
55     - add run-time parameter "useMissingValue" (def=False) to fill land-point
56        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
57       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
58     - Extend the use of "missing_value" setting from data.diagnostics for the case
59       of counter-diagnostics (where fraction-weight is zero). This applies both to
60       MNC and MDS output files.
61    o pkg/seaice/seaice_growth.F:
62      - add 'a priori' cap of latent heat flux based on actual mass considerations
63        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
64        non-legacy seaice_solve4temp.
65      - add diagnostic of the residual sublimation freshwater flux (the freshwater
66        flux taken from the ocean if the total actual latent heat fluxes exceed
67        the maximum)
68      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
69       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
70      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
71       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
72      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
73      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
74    o verification 1D_ocean_ice_column:
75       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
76       update results
77    o pkg/diagnostics:
78     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
79       which are not filled-up but computed from other diags ; In this case, the mate
80       diag points to the primary (filled-up) diag to used for post processing.
81     - Update Velocity-potential computation using post-processed diag framework.
82     ==> Change the ordering of fields and time-periods in MDS output file
83       when using periodic averaging: now writes one time record with the full set
84       of fields for this time period, then the next time reccord (it used to be
85       one field with the full set of time records then the next field).
86         Note: this is now similar to NetCDF (MNC) output file. <==
87    
88    checkpoint62z (2011/06/21)
89    o adjoint monitor:
90     - Add adjoint monitor output for packages exf, seaice
91       and update relevant testreport output
92    o pkg/seaice:
93     - re-order diags inits so that they appear in order in available_diagnostics.log
94     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
95       area/heff/hsnow preceeding thermodynamic growth/melt.
96     - modified diag: SIdA; output actual effect, as the description states.
97     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
98     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
99       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
100        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
101     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
102     - added diagnostics for seaice generic tracers (SItr*).
103     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
104     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
105     I. Fenty: 18-Jun-2011:
106     Minor changes to seaice package:
107     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
108        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
109       - Differentiated "regularization variables" from "floor variables"
110        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
111        * hiceMin became SEAICE_hice_reg (old hiceMin)
112          (with _reg meaning regularization variable)
113       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
114        so as to ensure energy conservation when going between phases
115      - A22 was not used anywhere
116     2) Changed regularization procedure for heffActual and hsnowActual to ensure
117        well-boundedness and smooth adjoint in seaice_growth.F
118     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
119        because the old regularization always set heffActual >= 0.05 cm
120     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
121        on AREA when HEFF > 0.
122      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
123        requiring that DISABLE_AREA_FLOOR *not* be defined
124     Affected verifications:
125      - 1D_ocean_ice_column (output.txt output_adm.txt)
126      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
127    o pkg/diagnostics:
128      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
129      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
130        (was _RL, now integer) with option = 0 to retrieve all levels.
131      - add pieces of code to compute velocity potential at each level (new diagnostics
132        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
133        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
134      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
135        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
136        and in diagnostics_fract_fill.F (do not need a valid pointer for the
137        diagnostics counter-mate); check that definition of counter-diagnostic
138        includes a valid counter-mate (in diagnostics_set_levels.F).
139    o model/src (rStar):
140      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
141        affect solution only if z* with full pressure in EOS;
142        update output of test-exp global_ocean.90x40x15.
143    o pkg/seaice:
144      - introduce siEps=1e-5 parameter
145      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
146      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
147      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
148        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
149        as well as ice cover age and ridging index (attached to AREA).
150        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
151        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
152        Up to SItrMaxNum=3 tracers can be used simultaneously.
153    o pkg/salt_plume:
154      -introduce SPsalFRAC run time parameter that sets the fraction of the
155       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
156       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
157    o model debug options:
158      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
159        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
160      - Refine debug-msg printing selection (3 new levels):
161        debugMode  : controls printing of debug messages (sequence of S/R calls).
162        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
163         debLevZero =  0 ; /* level of disabled aux. msg printing */
164         debLevA =  1 ; /* level of minimum  aux. msg printing */
165         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
166         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
167         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
168         debLevE =  5 ; /* level of extensive debug printing */
169        New debugLevel default: with default debugMode value (=F),
170          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
171          and if debugMode=T, default debugLevel = 4 (debLevD).
172        Relation with previous settings:
173         debLevB (=2) corresponds to former debLevA (=1)
174         debLevD (=4) corresponds to former debLevB (=2)
175        Note:
176         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
177         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
178            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
179      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
180        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
181    o pkg/obcs:
182      - change OBCSfixTopo default from True to False (should not change the results);
183        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
184    o pkg/thsice:
185      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
186        2nd layer seaice sublimation (unlikely to happen)
187      - use Interior mask for OBCS in thsice_advection.F (similar to what is
188        done in gad_advection & seaice_advection).
189    o adjoint:
190      bug fix spotted by Gael Forget:
191      seaice_advection and thsice_advection still had
192      legacy CPP options to avoid CS corner updates for adjoint
193    o pkg/seaice:
194      => Change some of the defaults (2011/05/29):
195         - change SEAICEuseFluxForm default (from False to True)
196         - change DIFF1 default (from 0.004 m/s to 0. m/s)
197         And print warnings if DIFF1 is not set in data.seaice and centered
198          avection scheme is used without any diffusion.
199      also:
200      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
201      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
202      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
203        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
204        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
205      update results of test exp.:
206         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
207             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
208             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
209         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
210         seaice_obcs: output (SEAICEuseFluxForm=T)
211      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
212          for standard fwd & AD lab_sea tests (to keep the same output).
213    o pkg/seaice/seaice_growth.F:
214      - use Ian Fenty's capping formulas for actual ice
215      thickness thoughout EVOLUTION branch.
216      - put treatment pathological case #2) in CPP brackets
217      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
218      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
219    o pkg/seaice:
220      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
221      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
222      also pass fac as a param, which can be 1. (to update the tendency
223      field) or the time step (to update the field itself).
224      - seaice_advdiff.F: for multidim, call seaice_diffusion with
225      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
226      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
227      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
228      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
229    o pkg/seaice:
230      diffusion with centered advection scheme (diffus.F & advect.F):
231      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
232        to just compute the laplacian of input-field.
233      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
234      - fix flux-form version in diffus.F to conserve tracer.
235      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
236       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
237    
238    checkpoint62y (2011/05/26)
239    o pkg/seaice:
240     - seaice_growth.F : in EVOLUTION branch, always include
241       a_QSWbyATM_cover in qnet (as it should be).
242     - verification/global_ocean.cs32x15 : update results accordingly
243       (output.seaice.txt output_adm.seaice.txt).
244    o pkg/seaice + obcs:
245     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
246       equivalent of assuming no tracer gradient outside the OB region.
247       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
248     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
249       after changes above);
250     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
251       only at OB location (instead of over a band of OLx width).
252    o pkg/seaice:
253     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
254       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
255    o pkg/obcs:
256      - split header file "OBCS.h" into 4 separated files:
257        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
258       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
259         (contain no conditional statement which depends on OBCS options).
260      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
261        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
262    o ctrl, cost, grdchk & autodiff pkgs:
263      - make options file more standard (like other {PKG}_OPTIONS.h file but
264        with AD_CONFIG.h); clean-up some of the included header files.
265    o pkg/obcs:
266      - do not mask tracer when applying OB (tracer == 0 could generate problems)
267      - apply tracer OB values to tracer field only at OB location (instead of
268        over a band of OLx width)
269      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
270      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
271        obcs_apply_tloc.F & obcs_apply_sloc.F
272    o obcs in model/src:
273      - call OBCS_APPLY_W only if NonHydrostatic.
274      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
275      - reset dEtaHdt and wVel to zero outside OB interior region ;
276      - leave tracer unchanged outside OB interior region: This has no effect
277        on the solution but just to prevent unrealistic tracer value outside OB.
278      - zero out velocity outside OB interior region: This has no effect on
279        the solution but just to prevent unrealistic velocity outside OB.
280    o obcs and non-lin free-surf:
281       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
282       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
283       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
284       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
285       update results of test-exp. exp4(nlfs).
286    o exp4 (nlfs) test-exp:
287       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
288       with NonLin-FreeSurf); update output.nlfs.txt
289    o obcs and 2d/3d solver norm:
290       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
291       and outside OB interior region (will allow to place OB further inside the
292       domain). Depending on the domain, can affects cg2d-Norm (previous
293       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
294       and cg3d-Norm (previous Norm was computed before canceling OB terms),
295       e.g. in tutorial_plume_on_slope.
296      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
297    o pkg rbcs:
298      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
299      - add capability to apply relaxation to horizontal velocity uVel & vVel.
300    o pkg/grdchk: add gradient check for control variable xx_shifwflx
301    o pkg/shelfice/shelfice_init_fixed.F
302      fix CPP-flag combinations
303    o pkg/seaice: Merge iceage code of Pierre Rampal
304      * update/change/correct ice age calculations
305      * add age updates for pathological cases
306      Probably needs more testing...
307    
308    checkpoint62x (2011/05/13)
309    o pkg/mom_vecinv:
310       high-order vorticity scheme: use interior masks (maskInW & S)
311       to zero-out (outside OB) gradient of vorticity.
312    o verification exp.:
313       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
314       hs94.128x64x5 and seaice_obcs ; update results.
315    o pkg/obcs:
316      fix bug in OBeta for YZ sections in obcs_exf_load.F
317    o pkg/ctrl, pkg/shelfice, and optim:
318      - add new control variable xx_shifwflx (fresh water flux underneath ice
319        shelves). This is almost as tedious as obcs-ctrl, because the
320        variables needs its own mask.
321      - add a cost function term that penalizes the deviation of xx_shifwflx
322        from the first guess (zero) in analogy to other control variables
323    o pkg/shelfice:
324      - start basic adjoint
325    o pkg/ctrl:
326      - remove extra 2D field "for good measure" when initializing in
327        ctrl_set_globfld_[xy/xz/yz].F
328      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
329      - improve error messages in ctrl_set_unpack_*
330    o OBC implementation in momentum:
331       use interior masks (maskInC,W & S) in momentum S/R:
332       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
333       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
334       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
335       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
336       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
337        (and also with Leith/Smagorinsky harmonic-viscosity).
338       Update output of experiment dome and exp4 (+nlfs).
339    o exp4 test-exp:
340      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
341        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
342        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
343        time-varying OB at Western-side for wVel (NonHyd); update output.
344      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
345        and biharmonic-viscosity ; also use prescribed time varying OB.
346    o pkg/obcs:
347      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
348    o model/src:
349      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
350      - initialise startTime & nIter0 with unlikely values: allows to set one
351        from the other without ambiguity.
352    o seaice_obcs test-exp.:
353      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
354  o pkg/obcs:  o pkg/obcs:
355    - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:    - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
356      no longer needed with maskInC,W,S in pkg/generic_advdiff.      no longer needed with maskInC,W,S in pkg/generic_advdiff.

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