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revision 1.1443 by jmc, Thu May 26 13:55:50 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)  checkpoint62y (2011/05/26)
268  o pkg/seaice:  o pkg/seaice:
269   - seaice_growth.F : in EVOLUTION branch, always include   - seaice_growth.F : in EVOLUTION branch, always include

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