| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/seaice/SEAICE.h,v 1.30 2007/04/24 11:23:42 mlosch Exp $ |
| 2 |
C $Name: $ |
| 3 |
|
| 4 |
CBOP |
| 5 |
C !ROUTINE: SEAICE.h |
| 6 |
|
| 7 |
C !DESCRIPTION: \bv |
| 8 |
C /==========================================================\ |
| 9 |
C | SEAICE.h | |
| 10 |
C | o Basic header for sea ice model. | |
| 11 |
C | Contains most sea ice field declarations. | |
| 12 |
C \==========================================================/ |
| 13 |
C |
| 14 |
C UICE - zonal ice velocity in m/s at South-West B-grid |
| 15 |
C (or C-grid #ifdef SEAICE_CGRID) U point |
| 16 |
C >0 from West to East |
| 17 |
C UICEC - average of UICE(1) between last two time steps |
| 18 |
C VICE - meridional ice velocity in m/s at South-West B-grid |
| 19 |
C (or C-grid #ifdef SEAICE_CGRID) V point |
| 20 |
C >0 from South to North |
| 21 |
C note: the South-West B-grid U and V points are on |
| 22 |
C the lower, left-hand corner of each grid cell |
| 23 |
C VICEC - average of VICE(1) between last two time steps |
| 24 |
C AREA - fractional ice-covered area in m^2/m^2 |
| 25 |
C at center of grid, i.e., tracer point |
| 26 |
C 0 is no cover, 1 is 100% cover |
| 27 |
C HEFF - effective ice thickness in m |
| 28 |
C at center of grid, i.e., tracer point |
| 29 |
C note: for non-zero AREA, actual ice |
| 30 |
C thickness is HEFF / AREA |
| 31 |
C HSNOW - effective snow thickness in m |
| 32 |
C at center of grid, i.e., tracer point |
| 33 |
C note: for non-zero AREA, actual snow |
| 34 |
C thickness is HEFF / AREA |
| 35 |
C \ev |
| 36 |
CEOP |
| 37 |
COMMON/SEAICE_DYNVARS_1/AREA |
| 38 |
_RL AREA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,3,nSx,nSy) |
| 39 |
|
| 40 |
COMMON/SEAICE_DYNVARS_2/UICE,VICE |
| 41 |
_RL UICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,3,nSx,nSy) |
| 42 |
_RL VICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,3,nSx,nSy) |
| 43 |
|
| 44 |
COMMON/SEAICE_DYNVARS_3/ |
| 45 |
& ETA,ZETA,DRAGS,DRAGA,FORCEX,FORCEY,UICEC,VICEC |
| 46 |
#ifndef SEAICE_CGRID |
| 47 |
& , AMASS |
| 48 |
#else |
| 49 |
& , seaiceMassC, seaiceMassU, seaiceMassV |
| 50 |
#endif |
| 51 |
_RL ETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 52 |
_RL ZETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 53 |
_RL DRAGS (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 54 |
_RL DRAGA (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 55 |
#ifndef SEAICE_CGRID |
| 56 |
_RL AMASS (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 57 |
#else |
| 58 |
_RL seaiceMassC(1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 59 |
_RL seaiceMassU(1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 60 |
_RL seaiceMassV(1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 61 |
#endif |
| 62 |
_RL FORCEX (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 63 |
_RL FORCEY (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 64 |
_RL UICEC (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 65 |
_RL VICEC (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 66 |
|
| 67 |
COMMON/SEAICE_DYNVARS_4/ |
| 68 |
& DWATN, PRESS0, FORCEX0, FORCEY0, ZMAX, ZMIN |
| 69 |
#ifndef SEAICE_CGRID |
| 70 |
COMMON/SEAICE_DYNVARS_BGRID/ DAIRN |
| 71 |
_RL DAIRN (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 72 |
#endif |
| 73 |
_RL DWATN (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 74 |
_RL PRESS0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 75 |
_RL FORCEX0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 76 |
_RL FORCEY0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 77 |
_RL ZMAX (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 78 |
_RL ZMIN (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 79 |
|
| 80 |
COMMON/SEAICE_TRANS/HEFF,HSNOW |
| 81 |
_RL HEFF (1-OLx:sNx+OLx,1-OLy:sNy+OLy,3,nSx,nSy) |
| 82 |
_RL HSNOW (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 83 |
|
| 84 |
COMMON/ARRAY/HEFFM |
| 85 |
#ifdef SEAICE_CGRID |
| 86 |
& , seaiceMaskU, seaiceMaskV |
| 87 |
#else |
| 88 |
& , UVM |
| 89 |
#endif |
| 90 |
COMMON/OFL/YNEG |
| 91 |
COMMON/RIV/RIVER |
| 92 |
_RL HEFFM (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 93 |
#ifdef SEAICE_CGRID |
| 94 |
_RL seaiceMaskU(1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 95 |
_RL seaiceMaskV(1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 96 |
#else |
| 97 |
_RL UVM (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 98 |
#endif /* SEAICE_CGRID */ |
| 99 |
_RL YNEG (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 100 |
_RL RIVER (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 101 |
|
| 102 |
#ifdef SEAICE_MULTICATEGORY |
| 103 |
INTEGER MULTDIM |
| 104 |
PARAMETER (MULTDIM=7) |
| 105 |
COMMON/MULTICATEGORY/TICES |
| 106 |
_RL TICES (1-OLx:sNx+OLx,1-OLy:sNy+OLy,MULTDIM,nSx,nSy) |
| 107 |
#endif |
| 108 |
|
| 109 |
#if (defined (SEAICE_CGRID) && defined (SEAICE_ALLOW_EVP)) |
| 110 |
C |
| 111 |
C additional fields needed by the EVP solver |
| 112 |
C |
| 113 |
C seaice_sigma1 - sigma11+sigma22, defined at C-points |
| 114 |
C seaice_sigma2 - sigma11-sigma22, defined at C-points |
| 115 |
C seaice_sigma12 - off-diagonal term, defined at Z-points |
| 116 |
C stressDivergenceX/Y - divergence of stress tensor |
| 117 |
COMMON /SEAICE_EVP_FIELDS/ |
| 118 |
& stressDivergenceX, stressDivergenceY, |
| 119 |
& seaice_sigma1, seaice_sigma2, seaice_sigma12 |
| 120 |
_RL stressDivergenceX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 121 |
_RL stressDivergenceY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 122 |
_RL seaice_sigma1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 123 |
_RL seaice_sigma2 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 124 |
_RL seaice_sigma12 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 125 |
#endif /* SEAICE_ALLOW_EVP and SEAICE_CGRID */ |
| 126 |
|
| 127 |
COMMON/MIX/TMIX,TICE |
| 128 |
COMMON/GWATXY/GWATX,GWATY |
| 129 |
COMMON/WIND/WINDX,WINDY,TAUX,TAUY |
| 130 |
_RL TMIX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 131 |
_RL TICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 132 |
_RL GWATX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 133 |
_RL GWATY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 134 |
C TAUX - zonal wind stress over ice at U point |
| 135 |
C TAUY - meridional wind stress over ice at V point |
| 136 |
C WINDX - zonal wind stress over water at C points |
| 137 |
C WINDY - meridional wind stress over water at C points |
| 138 |
_RL WINDX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 139 |
_RL WINDY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 140 |
_RL TAUX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 141 |
_RL TAUY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 142 |
|
| 143 |
COMMON/COUNT/ICOUNT |
| 144 |
COMMON/DAY/IDELT |
| 145 |
INTEGER ICOUNT, IDELT |
| 146 |
|
| 147 |
C-- KGEO Level used as a proxy for geostrophic velocity. |
| 148 |
COMMON/SEAICE_KGEO/KGEO |
| 149 |
integer KGEO (1-OLx:sNx+OLx,1-OLy:sNy+OLy, nSx,nSy) |
| 150 |
|
| 151 |
C-- SWFRACB Fraction of SW radiation penetrating the first layer |
| 152 |
COMMON/SEAICE_SWFRACB/SWFRACB |
| 153 |
_RL SWFRACB |
| 154 |
|
| 155 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 156 |
integer iicekey |
| 157 |
integer nEVPstepMax |
| 158 |
parameter ( nEVPstepMax=120 ) |
| 159 |
#endif |
| 160 |
|
| 161 |
CEH3 ;;; Local Variables: *** |
| 162 |
CEH3 ;;; mode:fortran *** |
| 163 |
CEH3 ;;; End: *** |