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revision 1.1552 by mlosch, Mon Dec 19 11:51:22 2011 UTC revision 1.1567 by jmc, Sun Jan 1 01:25:54 2012 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/exf (interpolation):
8      - assume periodicity in X only if input field cover full longitude range.
9      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
10        and should vectorise).
11      - fix input lat of the 2 added row (in case we provide N.pole data).
12    
13    checkpoint63h (2011/12/30)
14    o pkg/seaice:
15      - change declaration of UVM from _RL to _RS in order to get B-grid
16        uIce,vIce monitor when _RS = real*4
17    o pkg/offline:
18      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
19      - compute vertical velocity if not read from file (switch on exactConserv
20        & staggerTimeStep);
21      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
22    o verification:
23      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
24        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
25        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
26      - update output of exp. global_ocean.cs32x15.viscA4 after changing
27        grid-file angles (used here for coriolis-3d);
28      - remove (or gzip) few files not needed to run fizhi-cs experiments.
29    o pkg/exf (vector interpolation):
30      - rotate vector component toward local grid-axis orientation using grid-angles
31        (stored in GRID.h) instead of locally computed rotation angle; keep old code
32        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
33    o pkg/seaice:
34      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
35        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
36    o pkg/PKG_OPTIONS.h files:
37      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
38        outside of the #ifdef ALLOW_THISPKG / #endif block.
39      - update verification/*/code/PKG_OPTIONS.h files.
40    o add a verification experiment (offline_exf_seaice/input.seaice) that test
41      the B-grid LSOR solver
42    o pkg/seaice: sort out emissivity and long wave radiation step 2:
43      - add emissivity for snow and ice as new run-time parameters
44        (unfortunately) that default to the corresponding exf values; this
45        changes results in most verification experiments so that for backward
46        compatibility these parameter have to be set explicitly to inconsistent
47        values (ugly);
48      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
49        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
50        until we agree how to handle this bug properly
51    o pkg/exf (interpolation):
52      - add a set of run-time param ({inputfield}_interpMethod), one for
53        each interpolated input field, to select the interpolation method
54        with a value of zero switching off the interpolation;
55      - print interpolation parameters to standard output;
56      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
57        (to use instead runoff_interpMethod=0 in data.exf).
58      - simplify default setting of interpolation parameters (for all fields,
59        set position to match model grid cell-center position, leading to trivial
60        interpolation in case of regular Lat-Lon grid) and fix for the case of
61        non-uniform delY.
62    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
63       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
64       this factor is absolutely required, because the lw exitance (= out-going
65       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
66       where the reflectivity rho = 1-emissivity for conservation reasons. Once
67       this is established, we can remove the CPP-Flag (if we want to).
68    o pkg/seaice:
69      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
70        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
71      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
72        what the name implies (and not emissivity*BoltzmannConstant), this means
73        the old default value of 5.5e-8 now means
74        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
75        S/R exf_readparms
76      - FV-discretization of the B-grid LSOR solver, turn on with
77        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
78        of the calling routine dynsolver, so that B and C-grid code look a
79        little more alike.
80      - fix index bugs in ostres.F (B-grid code)
81    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
82  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the  o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
83    default for SEAICE_emissivity, if useEXF; requires setting a wrong    default for SEAICE_emissivity, if useEXF; requires setting a wrong
84    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for    parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
# Line 20  o pkg/seaice/seaice_growth.F: Line 95  o pkg/seaice/seaice_growth.F:
95  o pkg/seaice/seaice_model.F:  o pkg/seaice/seaice_model.F:
96    Remove this patholigical case treatment in evolution branch,    Remove this patholigical case treatment in evolution branch,
97    where it is un-necessary and breaks conservation.    where it is un-necessary and breaks conservation.
98    Update global_ocean.cs32x15/results accordingly for    Update global_ocean.cs32x15/results accordingly for
99    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt    output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
100  o model/src:  o model/src:
101    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
102    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.    external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
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