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revision 1.1549 by jmc, Thu Dec 15 22:45:47 2011 UTC revision 1.1569 by jmc, Tue Jan 3 18:11:55 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:
8      - change masking flags definition (no longer "parameter"), put them in
9        common block and set them in S/R EXF_INIT_FIXED.
10      - change recognized masking flag from s,u,v to c,w,s since the mask
11        to use (maskC,W,S) depends on position on model grid and has little to
12        do with scalar/vector difference; fix masking if using P-coordinates.
13      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
14        and update results of exp. global_with_exf (x2).
15      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
16    o pkg/obcs
17      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
18    o pkg/exf (interpolation):
19      - assume periodicity in X only if input field cover full longitude range.
20      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
21        and should vectorise).
22      - fix input lat of the 2 added row (in case we provide N.pole data).
23    
24    checkpoint63h (2011/12/30)
25    o pkg/seaice:
26      - change declaration of UVM from _RL to _RS in order to get B-grid
27        uIce,vIce monitor when _RS = real*4
28    o pkg/offline:
29      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
30      - compute vertical velocity if not read from file (switch on exactConserv
31        & staggerTimeStep);
32      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
33    o verification:
34      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
35        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
36        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
37      - update output of exp. global_ocean.cs32x15.viscA4 after changing
38        grid-file angles (used here for coriolis-3d);
39      - remove (or gzip) few files not needed to run fizhi-cs experiments.
40    o pkg/exf (vector interpolation):
41      - rotate vector component toward local grid-axis orientation using grid-angles
42        (stored in GRID.h) instead of locally computed rotation angle; keep old code
43        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
44    o pkg/seaice:
45      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
46        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
47    o pkg/PKG_OPTIONS.h files:
48      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
49        outside of the #ifdef ALLOW_THISPKG / #endif block.
50      - update verification/*/code/PKG_OPTIONS.h files.
51    o add a verification experiment (offline_exf_seaice/input.seaice) that test
52      the B-grid LSOR solver
53    o pkg/seaice: sort out emissivity and long wave radiation step 2:
54      - add emissivity for snow and ice as new run-time parameters
55        (unfortunately) that default to the corresponding exf values; this
56        changes results in most verification experiments so that for backward
57        compatibility these parameter have to be set explicitly to inconsistent
58        values (ugly);
59      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
60        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
61        until we agree how to handle this bug properly
62    o pkg/exf (interpolation):
63      - add a set of run-time param ({inputfield}_interpMethod), one for
64        each interpolated input field, to select the interpolation method
65        with a value of zero switching off the interpolation;
66      - print interpolation parameters to standard output;
67      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
68        (to use instead runoff_interpMethod=0 in data.exf).
69      - simplify default setting of interpolation parameters (for all fields,
70        set position to match model grid cell-center position, leading to trivial
71        interpolation in case of regular Lat-Lon grid) and fix for the case of
72        non-uniform delY.
73    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
74       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
75       this factor is absolutely required, because the lw exitance (= out-going
76       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
77       where the reflectivity rho = 1-emissivity for conservation reasons. Once
78       this is established, we can remove the CPP-Flag (if we want to).
79    o pkg/seaice:
80      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
81        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
82      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
83        what the name implies (and not emissivity*BoltzmannConstant), this means
84        the old default value of 5.5e-8 now means
85        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
86        S/R exf_readparms
87      - FV-discretization of the B-grid LSOR solver, turn on with
88        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
89        of the calling routine dynsolver, so that B and C-grid code look a
90        little more alike.
91      - fix index bugs in ostres.F (B-grid code)
92    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
93    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
94      default for SEAICE_emissivity, if useEXF; requires setting a wrong
95      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
96      backward compatiblity
97    o model/src: use sigmaR in calc_ivdc
98    
99    checkpoint63g (2011/12/16)
100    o pkg/seaice/seaice_growth.F:
101      fix heat conservation of the coupled ocean-seaice system.
102      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
103      solid vs liquid water treatment is resolved via QNET.
104    o pkg/seaice/seaice_growth.F:
105      add missing term for sublimation in saltFlux, which was breaking conservation.
106    o pkg/seaice/seaice_model.F:
107      Remove this patholigical case treatment in evolution branch,
108      where it is un-necessary and breaks conservation.
109      Update global_ocean.cs32x15/results accordingly for
110      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
111  o model/src:  o model/src:
112    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in    useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
113    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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