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revision 1.1540 by jmc, Thu Dec 1 19:33:51 2011 UTC revision 1.1556 by mlosch, Wed Dec 21 12:59:51 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/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
8       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
9       this factor is absolutely required, because the lw exitance (= out-going
10       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
11       where the reflectivity rho = 1-emissivity for conservation reasons. Once
12       this is established, we can remove the CPP-Flag (if we want to).
13    o pkg/seaice:
14      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
15        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
16      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
17        what the name implies (and not emissivity*BoltzmannConstant), this means
18        the old default value of 5.5e-8 now means
19        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
20        S/R exf_readparms
21      - FV-discretization of the B-grid LSOR solver, turn on with
22        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
23        of the calling routine dynsolver, so that B and C-grid code look a
24        little more alike.
25      - fix index bugs in ostres.F (B-grid code)
26    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
27    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
28      default for SEAICE_emissivity, if useEXF; requires setting a wrong
29      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
30      backward compatiblity
31    o model/src: use sigmaR in calc_ivdc
32    
33    checkpoint63g (2011/12/16)
34    o pkg/seaice/seaice_growth.F:
35      fix heat conservation of the coupled ocean-seaice system.
36      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
37      solid vs liquid water treatment is resolved via QNET.
38    o pkg/seaice/seaice_growth.F:
39      add missing term for sublimation in saltFlux, which was breaking conservation.
40    o pkg/seaice/seaice_model.F:
41      Remove this patholigical case treatment in evolution branch,
42      where it is un-necessary and breaks conservation.
43      Update global_ocean.cs32x15/results accordingly for
44      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
45    o model/src:
46      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
47      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
48    o pkg/obcs:
49      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
50      tendency for temperature and salinity that is then applied to update
51      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
52      horizontal advection and diffusion contributions on the boundary (in
53      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
54      removing the mask in S/R timestep_tracer. The advantage of this approach is
55      that the updated tracer values include contributions from the surface
56      forcing and vertical diffusion.
57      This modification changes exp4.stevens because of vertical diffusion.
58    o model/src:
59      change non-curvilinear grid setting to also work with exch2 + blank tiles:
60      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
61        face dimensions.
62      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
63        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
64        and INI_SPHERICAL_POLAR_GRID.
65      change test-experiment global_ocean.90x40x15:
66      - split the domain in many more tiles (9x4 tiles of 10x10 each);
67      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
68      - update results of both test (std & dwnslp).
69    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
70       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
71    o model/src:
72      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
73        and fix initialisation when using sigma-coords.
74    o model/src:
75     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
76       to their current value at the beginning of forward_step.F": add a new run-time
77       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
78     - set doResetHFactors=T in the following test exp:
79        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
80        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
81        and tutorial_global_oce_in_p (nonLinFS in p)
82    o pkg/ecco
83      - added IES cost term
84    o verification/advect_xz
85      - scale down the depth by 1/100 (from 200 km to just 2.km)
86      - add secondary test using divergent flow, r-star and implicit vertical advection.
87      - add note (check_conserve_TS.txt) and matlab script to check global
88        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
89    o pkg/rbcs:
90      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
91    o pkg/obcs (Stevens BCs):
92      - fix various problems in the phase speed computations of the Stevens
93        boundary conditions:
94        - sign error for western and southern boundaries,
95        - time tendencies were underestimated by factor of dTracerLev and some just
96          zero (for multidim advection schemes) -> now estimate time tendencies
97          from difference between previous (n) time level and the one before (n-1);
98          this requires storing a field per tracer per boundary, also in the pickup
99          files.
100        - replace deltaTmom in cflMer/Zon computation with dTracerLev
101        - set default phase velocity to cflMer/Zon
102      - update verification experiment exp4.stevens
103  o pkg/generic_advdiff (implicit_r):  o pkg/generic_advdiff (implicit_r):
104    - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf    - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
105      (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);      (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
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