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revision 1.1438 by jmc, Fri May 20 21:48:43 2011 UTC revision 1.1455 by gforget, Wed Jun 15 01:31:34 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8     - re-order diags inits so that they appear in order in available_diagnostics.log
9     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
10       area/heff/hsnow preceeding thermodynamic growth/melt.
11     - modified diag: SIdA; output actual effect, as the description states.
12     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
13     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
14       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
15        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
16     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
17     - added diagnostics for seaice genereic tracers (SItr*).
18     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
19     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
20    o pkg/diagnostics:
21      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
22      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
23        (was _RL, now integer) with option = 0 to retrieve all levels.
24      - add pieces of code to compute velocity potential at each level (new diagnostics
25        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
26        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
27    o model/src (rStar):
28      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
29        affect solution only if z* with full pressure in EOS;
30        update output of test-exp global_ocean.90x40x15.
31    o pkg/seaice:
32      - introduce siEps=1e-5 parameter
33      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
34      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
35      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
36        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
37        as well as ice cover age and ridging index (attached to AREA).
38        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
39        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
40        Up to SItrMaxNum=3 tracers can be used simultaneously.
41    o pkg/salt_plume:
42      -introduce SPsalFRAC run time parameter that sets the fraction of the
43       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
44       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
45    o model debug options:
46      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
47        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
48      - Refine debug-msg printing selection (3 new levels):
49        debugMode  : controls printing of debug messages (sequence of S/R calls).
50        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
51         debLevZero =  0 ; /* level of disabled aux. msg printing */
52         debLevA =  1 ; /* level of minimum  aux. msg printing */
53         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
54         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
55         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
56         debLevE =  5 ; /* level of extensive debug printing */
57        New debugLevel default: with default debugMode value (=F),
58          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
59          and if debugMode=T, default debugLevel = 4 (debLevD).
60        Relation with previous settings:
61         debLevB (=2) corresponds to former debLevA (=1)
62         debLevD (=4) corresponds to former debLevB (=2)
63        Note:
64         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
65         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
66            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
67      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
68        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
69    o pkg/obcs:
70      - change OBCSfixTopo default from True to False (should not change the results);
71        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
72    o pkg/thsice:
73      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
74        2nd layer seaice sublimation (unlikely to happen)
75      - use Interior mask for OBCS in thsice_advection.F (similar to what is
76        done in gad_advection & seaice_advection).
77    o adjoint:
78      bug fix spotted by Gael Forget:
79      seaice_advection and thsice_advection still had
80      legacy CPP options to avoid CS corner updates for adjoint
81    o pkg/seaice:
82      => Change some of the defaults (2011/05/29):
83         - change SEAICEuseFluxForm default (from False to True)
84         - change DIFF1 default (from 0.004 m/s to 0. m/s)
85         And print warnings if DIFF1 is not set in data.seaice and centered
86          avection scheme is used without any diffusion.
87      also:
88      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
89      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
90      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
91        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
92        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
93      update results of test exp.:
94         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
95             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
96             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
97         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
98         seaice_obcs: output (SEAICEuseFluxForm=T)
99      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
100          for standard fwd & AD lab_sea tests (to keep the same output).
101    o pkg/seaice/seaice_growth.F:
102      - use Ian Fenty's capping formulas for actual ice
103      thickness thoughout EVOLUTION branch.
104      - put treatment pathological case #2) in CPP brackets
105      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
106      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
107    o pkg/seaice:
108      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
109      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
110      also pass fac as a param, which can be 1. (to update the tendency
111      field) or the time step (to update the field itself).
112      - seaice_advdiff.F: for multidim, call seaice_diffusion with
113      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
114      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
115      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
116      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
117    o pkg/seaice:
118      diffusion with centered advection scheme (diffus.F & advect.F):
119      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
120        to just compute the laplacian of input-field.
121      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
122      - fix flux-form version in diffus.F to conserve tracer.
123      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
124       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
125    
126    checkpoint62y (2011/05/26)
127    o pkg/seaice:
128     - seaice_growth.F : in EVOLUTION branch, always include
129       a_QSWbyATM_cover in qnet (as it should be).
130     - verification/global_ocean.cs32x15 : update results accordingly
131       (output.seaice.txt output_adm.seaice.txt).
132    o pkg/seaice + obcs:
133     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
134       equivalent of assuming no tracer gradient outside the OB region.
135       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
136     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
137       after changes above);
138     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
139       only at OB location (instead of over a band of OLx width).
140    o pkg/seaice:
141     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
142       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
143    o pkg/obcs:
144      - split header file "OBCS.h" into 4 separated files:
145        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
146       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
147         (contain no conditional statement which depends on OBCS options).
148      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
149        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
150    o ctrl, cost, grdchk & autodiff pkgs:
151      - make options file more standard (like other {PKG}_OPTIONS.h file but
152        with AD_CONFIG.h); clean-up some of the included header files.
153  o pkg/obcs:  o pkg/obcs:
154    - do not mask tracer when applying OB (tracer == 0 could generate problems)    - do not mask tracer when applying OB (tracer == 0 could generate problems)
155    - apply tracer OB values to tracer field only at OB location (instead of    - apply tracer OB values to tracer field only at OB location (instead of
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