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revision 1.1430 by jmc, Thu May 12 23:12:54 2011 UTC revision 1.1453 by jmc, Sun Jun 12 19:20:28 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:
8      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
9      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
10        (was _RL, now integer) with option = 0 to retrieve all levels.
11    o model/src (rStar):
12      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
13        affect solution only if z* with full pressure in EOS;
14        update output of test-exp global_ocean.90x40x15.
15    o pkg/seaice:
16      - introduce siEps=1e-5 parameter
17      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
18      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
19      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
20        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
21        as well as ice cover age and ridging index (attached to AREA).
22        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
23        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
24        Up to SItrMaxNum=3 tracers can be used simultaneously.
25    o pkg/salt_plume:
26      -introduce SPsalFRAC run time parameter that sets the fraction of the
27       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
28       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
29    o model debug options:
30      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
31        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
32      - Refine debug-msg printing selection (3 new levels):
33        debugMode  : controls printing of debug messages (sequence of S/R calls).
34        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
35         debLevZero =  0 ; /* level of disabled aux. msg printing */
36         debLevA =  1 ; /* level of minimum  aux. msg printing */
37         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
38         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
39         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
40         debLevE =  5 ; /* level of extensive debug printing */
41        New debugLevel default: with default debugMode value (=F),
42          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
43          and if debugMode=T, default debugLevel = 4 (debLevD).
44        Relation with previous settings:
45         debLevB (=2) corresponds to former debLevA (=1)
46         debLevD (=4) corresponds to former debLevB (=2)
47        Note:
48         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
49         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
50            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
51      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
52        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
53    o pkg/obcs:
54      - change OBCSfixTopo default from True to False (should not change the results);
55        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
56    o pkg/thsice:
57      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
58        2nd layer seaice sublimation (unlikely to happen)
59      - use Interior mask for OBCS in thsice_advection.F (similar to what is
60        done in gad_advection & seaice_advection).
61    o adjoint:
62      bug fix spotted by Gael Forget:
63      seaice_advection and thsice_advection still had
64      legacy CPP options to avoid CS corner updates for adjoint
65    o pkg/seaice:
66      => Change some of the defaults (2011/05/29):
67         - change SEAICEuseFluxForm default (from False to True)
68         - change DIFF1 default (from 0.004 m/s to 0. m/s)
69         And print warnings if DIFF1 is not set in data.seaice and centered
70          avection scheme is used without any diffusion.
71      also:
72      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
73      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
74      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
75        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
76        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
77      update results of test exp.:
78         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
79             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
80             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
81         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
82         seaice_obcs: output (SEAICEuseFluxForm=T)
83      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
84          for standard fwd & AD lab_sea tests (to keep the same output).
85    o pkg/seaice/seaice_growth.F:
86      - use Ian Fenty's capping formulas for actual ice
87      thickness thoughout EVOLUTION branch.
88      - put treatment pathological case #2) in CPP brackets
89      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
90      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
91    o pkg/seaice:
92      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
93      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
94      also pass fac as a param, which can be 1. (to update the tendency
95      field) or the time step (to update the field itself).
96      - seaice_advdiff.F: for multidim, call seaice_diffusion with
97      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
98      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
99      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
100      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
101    o pkg/seaice:
102      diffusion with centered advection scheme (diffus.F & advect.F):
103      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
104        to just compute the laplacian of input-field.
105      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
106      - fix flux-form version in diffus.F to conserve tracer.
107      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
108       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
109    
110    checkpoint62y (2011/05/26)
111    o pkg/seaice:
112     - seaice_growth.F : in EVOLUTION branch, always include
113       a_QSWbyATM_cover in qnet (as it should be).
114     - verification/global_ocean.cs32x15 : update results accordingly
115       (output.seaice.txt output_adm.seaice.txt).
116    o pkg/seaice + obcs:
117     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
118       equivalent of assuming no tracer gradient outside the OB region.
119       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
120     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
121       after changes above);
122     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
123       only at OB location (instead of over a band of OLx width).
124    o pkg/seaice:
125     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
126       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
127    o pkg/obcs:
128      - split header file "OBCS.h" into 4 separated files:
129        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
130       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
131         (contain no conditional statement which depends on OBCS options).
132      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
133        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
134    o ctrl, cost, grdchk & autodiff pkgs:
135      - make options file more standard (like other {PKG}_OPTIONS.h file but
136        with AD_CONFIG.h); clean-up some of the included header files.
137    o pkg/obcs:
138      - do not mask tracer when applying OB (tracer == 0 could generate problems)
139      - apply tracer OB values to tracer field only at OB location (instead of
140        over a band of OLx width)
141      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
142      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
143        obcs_apply_tloc.F & obcs_apply_sloc.F
144    o obcs in model/src:
145      - call OBCS_APPLY_W only if NonHydrostatic.
146      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
147      - reset dEtaHdt and wVel to zero outside OB interior region ;
148      - leave tracer unchanged outside OB interior region: This has no effect
149        on the solution but just to prevent unrealistic tracer value outside OB.
150      - zero out velocity outside OB interior region: This has no effect on
151        the solution but just to prevent unrealistic velocity outside OB.
152    o obcs and non-lin free-surf:
153       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
154       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
155       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
156       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
157       update results of test-exp. exp4(nlfs).
158    o exp4 (nlfs) test-exp:
159       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
160       with NonLin-FreeSurf); update output.nlfs.txt
161    o obcs and 2d/3d solver norm:
162       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
163       and outside OB interior region (will allow to place OB further inside the
164       domain). Depending on the domain, can affects cg2d-Norm (previous
165       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
166       and cg3d-Norm (previous Norm was computed before canceling OB terms),
167       e.g. in tutorial_plume_on_slope.
168      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
169    o pkg rbcs:
170      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
171      - add capability to apply relaxation to horizontal velocity uVel & vVel.
172    o pkg/grdchk: add gradient check for control variable xx_shifwflx
173    o pkg/shelfice/shelfice_init_fixed.F
174      fix CPP-flag combinations
175    o pkg/seaice: Merge iceage code of Pierre Rampal
176      * update/change/correct ice age calculations
177      * add age updates for pathological cases
178      Probably needs more testing...
179    
180    checkpoint62x (2011/05/13)
181    o pkg/mom_vecinv:
182       high-order vorticity scheme: use interior masks (maskInW & S)
183       to zero-out (outside OB) gradient of vorticity.
184  o verification exp.:  o verification exp.:
185     turn on "useEnergyConservingCoriolis" (better discretisation) in exp.     turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
186     hs94.128x64x5 and seaice_obcs ; update results.     hs94.128x64x5 and seaice_obcs ; update results.

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