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C $Header: /u/gcmpack/MITgcm/pkg/seaice/SEAICE.h,v 1.62 2012/03/06 16:51:21 jmc Exp $ |
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C $Name: $ |
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CBOP |
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C !ROUTINE: SEAICE.h |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SEAICE.h |
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C | o Basic header for sea ice model. |
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C | Contains most sea ice field declarations. |
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C *==========================================================* |
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C |
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C UICE :: zonal ice velocity in m/s at South-West B-grid |
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C (or C-grid #ifdef SEAICE_CGRID) U point |
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C >0 from West to East |
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C VICE :: meridional ice velocity in m/s at South-West B-grid |
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C (or C-grid #ifdef SEAICE_CGRID) V point |
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C >0 from South to North |
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C note: the South-West B-grid U and V points are on |
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C the lower, left-hand corner of each grid cell |
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C AREA :: fractional ice-covered area in m^2/m^2 |
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C at center of grid, i.e., tracer point |
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C 0 is no cover, 1 is 100% cover |
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C HEFF :: effective ice thickness in m |
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C at center of grid, i.e., tracer point |
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C note: for non-zero AREA, actual ice thickness is HEFF / AREA |
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C HSNOW :: effective snow thickness in m |
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C at center of grid, i.e., tracer point |
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C note: for non-zero AREA, actual snow thickness is HSNOW / AREA |
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C HSALT :: effective sea ice salinity in g/m^2 |
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C at center of grid, i.e., tracer point |
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C \ev |
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CEOP |
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C-- Grid variables for seaice |
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COMMON/ARRAY/HEFFM |
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_RL HEFFM (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifdef SEAICE_CGRID |
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COMMON/ARRAYC/ seaiceMaskU, seaiceMaskV |
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_RL seaiceMaskU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL seaiceMaskV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C k1/2AtZ :: coefficients at C and Z points |
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C k1/2AtC for metric terms in U/V ice equations. |
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COMMON/ARRAYCMETRIC/ k1AtC, k1AtZ, k2AtC, k2AtZ |
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_RS k1AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k1AtZ (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k2AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k2AtZ (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#else |
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COMMON/ARRAYB/ UVM |
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_RS UVM (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C k1/2AtC/U/V :: coefficients at C, U, and V points |
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C for metric terms in U/V ice equations. |
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COMMON/ARRAYBMETRIC/ |
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& k1AtC, k1AtU, k1AtV, k2AtC, k2AtU, k2AtV |
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_RS k1AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k1AtU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k1AtV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k2AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k2AtU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RS k2AtV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* SEAICE_CGRID */ |
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C-- Dynamical variables |
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COMMON/SEAICE_DYNVARS_1/AREA,HEFF,HSNOW,UICE,VICE |
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_RL AREA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL HEFF (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL HSNOW (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL UICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL VICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifdef SEAICE_GROWTH_LEGACY |
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COMMON/SEAICE_DYNVARS_2/ areaNm1, hEffNm1 |
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_RL areaNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL hEffNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* SEAICE_GROWTH_LEGACY */ |
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C uIceC :: average of UICE between last two time steps |
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C vIceC :: average of VICE between last two time steps |
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COMMON/SEAICE_DYNVARS_3/ |
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& ETA,ZETA,PRESS, e11, e22, e12, |
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& DRAGS,DRAGA,FORCEX,FORCEY, |
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& uIceC, vIceC, uIceNm1, vIceNm1 |
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_RL ETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL ZETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C ice strength/pressure term |
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_RL PRESS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C strain rate tensor |
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_RL e11 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL e22 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL e12 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C |
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_RL DRAGS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL DRAGA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL FORCEX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL FORCEY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL uIceC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL vIceC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL uIceNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL vIceNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifndef SEAICE_CGRID |
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COMMON/SEAICE_DYNVARS_BGRID/ AMASS, DAIRN |
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_RL AMASS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL DAIRN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#else |
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COMMON/SEAICE_DYNVARS_CGRID/ |
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& seaiceMassC, seaiceMassU, seaiceMassV |
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_RL seaiceMassC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL seaiceMassU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL seaiceMassV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif |
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COMMON/SEAICE_DYNVARS_4/ |
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& DWATN, PRESS0, FORCEX0, FORCEY0, ZMAX, ZMIN |
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_RL DWATN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL PRESS0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL FORCEX0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL FORCEY0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL ZMAX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL ZMIN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifdef SEAICE_VARIABLE_SALINITY |
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COMMON/SEAICE_SALINITY_R/HSALT |
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_RL HSALT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif |
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C saltWtrIce contains m of salty ice melted (<0) or created (>0) |
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C frWtrIce contains m of freshwater ice melted (<0) or created (>0) |
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C that is, ice due to precipitation or snow |
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C frWtrAtm contains freshwater flux from the atmosphere |
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COMMON/ICEFLUX/ saltWtrIce, frWtrIce |
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#ifdef ALLOW_MEAN_SFLUX_COST_CONTRIBUTION |
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& , frWtrAtm |
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_RL frWtrAtm (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif |
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_RL saltWtrIce (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL frWtrIce (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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COMMON/MULTICATEGORY/TICES |
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_RL TICES (1-OLx:sNx+OLx,1-OLy:sNy+OLy,MULTDIM,nSx,nSy) |
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C TICE :: Seaice/snow surface temperature |
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COMMON/SEAICE_TEMPERATURE/ TICE |
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_RL TICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#if (defined (SEAICE_CGRID) && defined (SEAICE_ALLOW_FREEDRIFT)) |
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COMMON /SEAICE_FD_FIELDS/ |
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& uice_fd, vice_fd |
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_RL uice_fd (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL vice_fd (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif |
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#if (defined (SEAICE_CGRID) && defined (SEAICE_ALLOW_EVP)) |
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C |
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C additional fields needed by the EVP solver |
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C |
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C seaice_sigma1 - sigma11+sigma22, defined at C-points |
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C seaice_sigma2 - sigma11-sigma22, defined at C-points |
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C seaice_sigma12 - off-diagonal term, defined at Z-points |
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COMMON /SEAICE_EVP_FIELDS/ |
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& seaice_sigma1, seaice_sigma2, seaice_sigma12 |
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_RL seaice_sigma1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL seaice_sigma2 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL seaice_sigma12 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* SEAICE_ALLOW_EVP and SEAICE_CGRID */ |
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#ifdef SEAICE_CGRID |
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C stressDivergenceX/Y - divergence of stress tensor |
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COMMON /SEAICE_STRESSDIV/ |
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& stressDivergenceX, stressDivergenceY |
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_RL stressDivergenceX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL stressDivergenceY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* SEAICE_CGRID */ |
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COMMON/WIND_STRESS_ICE/TAUX,TAUY |
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C TAUX - zonal wind stress over ice at U point |
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C TAUY - meridional wind stress over ice at V point |
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_RL TAUX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL TAUY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#ifndef SEAICE_CGRID |
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COMMON/WIND_STRESS_OCE/WINDX,WINDY |
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C WINDX - zonal wind stress over water at C points |
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C WINDY - meridional wind stress over water at C points |
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_RL WINDX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL WINDY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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COMMON/GWATXY/GWATX,GWATY |
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_RL GWATX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL GWATY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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C-- KGEO Level used as a proxy for geostrophic velocity. |
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COMMON/SEAICE_KGEO/KGEO |
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INTEGER KGEO (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif |
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#ifdef ALLOW_SEAICE_COST_EXPORT |
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_RL uHeffExportCell(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL vHeffExportCell(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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COMMON /SEAICE_COST_EXPORT_R/ |
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& uHeffExportCell, vHeffExportCell |
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#endif |
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C SWFracB :: fraction of surface Short-Wave radiation reaching |
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C the bottom of ocean surface level |
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_RL SWFracB |
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COMMON /SEAICE_SW_R/ |
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& SWFracB |
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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