| 1 |
C $Header: /u/gcmpack/MITgcm_contrib/torge/itd/code/SEAICE.h,v 1.2 2012/04/27 22:25:23 dimitri 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 VICE :: meridional ice velocity in m/s at South-West B-grid |
| 18 |
C (or C-grid #ifdef SEAICE_CGRID) V point |
| 19 |
C >0 from South to North |
| 20 |
C note: the South-West B-grid U and V points are on |
| 21 |
C the lower, left-hand corner of each grid cell |
| 22 |
C AREA :: fractional ice-covered area in m^2/m^2 |
| 23 |
C at center of grid, i.e., tracer point |
| 24 |
C 0 is no cover, 1 is 100% cover |
| 25 |
C HEFF :: effective ice thickness in m |
| 26 |
C at center of grid, i.e., tracer point |
| 27 |
C note: for non-zero AREA, actual ice thickness is HEFF / AREA |
| 28 |
C HSNOW :: effective snow thickness in m |
| 29 |
C at center of grid, i.e., tracer point |
| 30 |
C note: for non-zero AREA, actual snow thickness is HSNOW / AREA |
| 31 |
C HSALT :: effective sea ice salinity in g/m^2 |
| 32 |
C at center of grid, i.e., tracer point |
| 33 |
C \ev |
| 34 |
CEOP |
| 35 |
|
| 36 |
C-- Grid variables for seaice |
| 37 |
COMMON/ARRAY/HEFFM |
| 38 |
_RL HEFFM (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 39 |
#ifdef SEAICE_CGRID |
| 40 |
COMMON/ARRAYC/ seaiceMaskU, seaiceMaskV |
| 41 |
_RL seaiceMaskU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 42 |
_RL seaiceMaskV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 43 |
C k1/2AtZ :: coefficients at C and Z points |
| 44 |
C k1/2AtC for metric terms in U/V ice equations. |
| 45 |
COMMON/ARRAYCMETRIC/ k1AtC, k1AtZ, k2AtC, k2AtZ |
| 46 |
_RS k1AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 47 |
_RS k1AtZ (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 48 |
_RS k2AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 49 |
_RS k2AtZ (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 50 |
#else |
| 51 |
COMMON/ARRAYB/ UVM |
| 52 |
_RS UVM (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 53 |
C k1/2AtC/U/V :: coefficients at C, U, and V points |
| 54 |
C for metric terms in U/V ice equations. |
| 55 |
COMMON/ARRAYBMETRIC/ |
| 56 |
& k1AtC, k1AtU, k1AtV, k2AtC, k2AtU, k2AtV |
| 57 |
_RS k1AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 58 |
_RS k1AtU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 59 |
_RS k1AtV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 60 |
_RS k2AtC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 61 |
_RS k2AtU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 62 |
_RS k2AtV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 63 |
#endif /* SEAICE_CGRID */ |
| 64 |
|
| 65 |
C-- Dynamical variables |
| 66 |
CToM<<< |
| 67 |
#ifdef SEAICE_ITD |
| 68 |
COMMON/SEAICE_DYNVARS_1/AREA,HEFF,HSNOW,UICE,VICE, |
| 69 |
& AREAITD,HEFFITD,HSNOWITD |
| 70 |
#else |
| 71 |
COMMON/SEAICE_DYNVARS_1/AREA,HEFF,HSNOW,UICE,VICE |
| 72 |
#endif |
| 73 |
C>>>ToM |
| 74 |
_RL AREA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 75 |
_RL HEFF (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 76 |
_RL HSNOW (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 77 |
_RL UICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 78 |
_RL VICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 79 |
CToM<<< |
| 80 |
#ifdef SEAICE_ITD |
| 81 |
_RL AREAITD (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nITD,nSx,nSy) |
| 82 |
_RL HEFFITD (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nITD,nSx,nSy) |
| 83 |
_RL HSNOWITD (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nITD,nSx,nSy) |
| 84 |
#endif |
| 85 |
C>>>ToM |
| 86 |
|
| 87 |
#ifdef SEAICE_GROWTH_LEGACY |
| 88 |
COMMON/SEAICE_DYNVARS_2/ areaNm1, hEffNm1 |
| 89 |
_RL areaNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 90 |
_RL hEffNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 91 |
#endif /* SEAICE_GROWTH_LEGACY */ |
| 92 |
|
| 93 |
C uIceC :: average of UICE between last two time steps |
| 94 |
C vIceC :: average of VICE between last two time steps |
| 95 |
COMMON/SEAICE_DYNVARS_3/ |
| 96 |
& ETA,ZETA,PRESS, e11, e22, e12, |
| 97 |
& FORCEX,FORCEY, |
| 98 |
& uIceC, vIceC, uIceNm1, vIceNm1 |
| 99 |
_RL ETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 100 |
_RL ZETA (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 101 |
C ice strength/pressure term |
| 102 |
_RL PRESS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 103 |
C strain rate tensor |
| 104 |
_RL e11 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 105 |
_RL e22 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 106 |
_RL e12 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 107 |
C |
| 108 |
_RL FORCEX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 109 |
_RL FORCEY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 110 |
_RL uIceC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 111 |
_RL vIceC (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 112 |
_RL uIceNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 113 |
_RL vIceNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 114 |
|
| 115 |
#if (defined (ALLOW_MEAN_SFLUX_COST_CONTRIBUTION) || defined (ALLOW_SSH_GLOBMEAN_COST_CONTRIBUTION)) |
| 116 |
C-- Dynamical variables |
| 117 |
COMMON/SEAICE_DYNVARS_COST/ AREAforAtmFW, frWtrAtm |
| 118 |
_RL AREAforAtmFW (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 119 |
_RL frWtrAtm (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 120 |
#endif |
| 121 |
|
| 122 |
#ifndef SEAICE_CGRID |
| 123 |
COMMON/SEAICE_DYNVARS_BGRID/ AMASS, DAIRN |
| 124 |
_RL AMASS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 125 |
_RL DAIRN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 126 |
#else |
| 127 |
COMMON/SEAICE_DYNVARS_CGRID/ |
| 128 |
& seaiceMassC, seaiceMassU, seaiceMassV |
| 129 |
_RL seaiceMassC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 130 |
_RL seaiceMassU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 131 |
_RL seaiceMassV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 132 |
#endif |
| 133 |
|
| 134 |
COMMON/SEAICE_DYNVARS_4/ |
| 135 |
& DWATN, PRESS0, FORCEX0, FORCEY0, ZMAX, ZMIN |
| 136 |
_RL DWATN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 137 |
_RL PRESS0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 138 |
_RL FORCEX0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 139 |
_RL FORCEY0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 140 |
_RL ZMAX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 141 |
_RL ZMIN (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 142 |
|
| 143 |
#ifdef SEAICE_VARIABLE_SALINITY |
| 144 |
COMMON/SEAICE_SALINITY_R/HSALT |
| 145 |
_RL HSALT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 146 |
#endif |
| 147 |
|
| 148 |
C saltWtrIce contains m of salty ice melted (<0) or created (>0) |
| 149 |
C frWtrIce contains m of freshwater ice melted (<0) or created (>0) |
| 150 |
C that is, ice due to precipitation or snow |
| 151 |
C frWtrAtm contains freshwater flux from the atmosphere |
| 152 |
COMMON/ICEFLUX/ saltWtrIce, frWtrIce |
| 153 |
_RL saltWtrIce (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 154 |
_RL frWtrIce (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 155 |
|
| 156 |
COMMON/MULTICATEGORY/TICES |
| 157 |
_RL TICES (1-OLx:sNx+OLx,1-OLy:sNy+OLy,MULTDIM,nSx,nSy) |
| 158 |
|
| 159 |
C TICE :: Seaice/snow surface temperature |
| 160 |
COMMON/SEAICE_TEMPERATURE/ TICE |
| 161 |
_RL TICE (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 162 |
|
| 163 |
#if (defined (SEAICE_CGRID) && defined (SEAICE_ALLOW_FREEDRIFT)) |
| 164 |
COMMON /SEAICE_FD_FIELDS/ |
| 165 |
& uice_fd, vice_fd |
| 166 |
_RL uice_fd (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 167 |
_RL vice_fd (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 168 |
#endif |
| 169 |
|
| 170 |
#if (defined (SEAICE_CGRID) && defined (SEAICE_ALLOW_EVP)) |
| 171 |
C |
| 172 |
C additional fields needed by the EVP solver |
| 173 |
C |
| 174 |
C seaice_sigma1 - sigma11+sigma22, defined at C-points |
| 175 |
C seaice_sigma2 - sigma11-sigma22, defined at C-points |
| 176 |
C seaice_sigma12 - off-diagonal term, defined at Z-points |
| 177 |
COMMON /SEAICE_EVP_FIELDS/ |
| 178 |
& seaice_sigma1, seaice_sigma2, seaice_sigma12 |
| 179 |
_RL seaice_sigma1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 180 |
_RL seaice_sigma2 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 181 |
_RL seaice_sigma12 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 182 |
#endif /* SEAICE_ALLOW_EVP and SEAICE_CGRID */ |
| 183 |
|
| 184 |
#ifdef SEAICE_CGRID |
| 185 |
C stressDivergenceX/Y - divergence of stress tensor |
| 186 |
COMMON /SEAICE_STRESSDIV/ |
| 187 |
& stressDivergenceX, stressDivergenceY |
| 188 |
_RL stressDivergenceX(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 189 |
_RL stressDivergenceY(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 190 |
#endif /* SEAICE_CGRID */ |
| 191 |
|
| 192 |
COMMON/WIND_STRESS_ICE/TAUX,TAUY |
| 193 |
C TAUX - zonal wind stress over ice at U point |
| 194 |
C TAUY - meridional wind stress over ice at V point |
| 195 |
_RL TAUX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 196 |
_RL TAUY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 197 |
|
| 198 |
#ifndef SEAICE_CGRID |
| 199 |
COMMON/WIND_STRESS_OCE/WINDX,WINDY |
| 200 |
C WINDX - zonal wind stress over water at C points |
| 201 |
C WINDY - meridional wind stress over water at C points |
| 202 |
_RL WINDX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 203 |
_RL WINDY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 204 |
|
| 205 |
COMMON/GWATXY/GWATX,GWATY |
| 206 |
_RL GWATX (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 207 |
_RL GWATY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 208 |
|
| 209 |
C-- KGEO Level used as a proxy for geostrophic velocity. |
| 210 |
COMMON/SEAICE_KGEO/KGEO |
| 211 |
INTEGER KGEO (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 212 |
#endif |
| 213 |
|
| 214 |
#ifdef ALLOW_SEAICE_COST_EXPORT |
| 215 |
_RL uHeffExportCell(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 216 |
_RL vHeffExportCell(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 217 |
COMMON /SEAICE_COST_EXPORT_R/ |
| 218 |
& uHeffExportCell, vHeffExportCell |
| 219 |
#endif |
| 220 |
|
| 221 |
C SWFracB :: fraction of surface Short-Wave radiation reaching |
| 222 |
C the bottom of ocean surface level |
| 223 |
_RL SWFracB |
| 224 |
COMMON /SEAICE_SW_R/ |
| 225 |
& SWFracB |
| 226 |
|
| 227 |
CEH3 ;;; Local Variables: *** |
| 228 |
CEH3 ;;; mode:fortran *** |
| 229 |
CEH3 ;;; End: *** |
Parent Directory
| 
Revision Log
| 
Revision Graph