| 1 |
C $Header: /u/gcmpack/MITgcm/model/inc/FFIELDS.h,v 1.31 2006/01/02 21:17:02 heimbach Exp $ |
| 2 |
C $Name: $ |
| 3 |
CBOP |
| 4 |
C !ROUTINE: FFIELDS.h |
| 5 |
C !INTERFACE: |
| 6 |
C include "FFIELDS.h" |
| 7 |
C !DESCRIPTION: |
| 8 |
C \bv |
| 9 |
C *==========================================================* |
| 10 |
C | FFIELDS.h |
| 11 |
C | o Model forcing fields |
| 12 |
C *==========================================================* |
| 13 |
C | More flexible surface forcing configurations are |
| 14 |
C | available via pkg/exf and pkg/seaice |
| 15 |
C *==========================================================* |
| 16 |
C \ev |
| 17 |
CEOP |
| 18 |
C |
| 19 |
C fu :: Zonal surface wind stress in N/m^2 |
| 20 |
C > 0 for increase in uVel, which is west to |
| 21 |
C east for cartesian and spherical polar grids |
| 22 |
C Typical range: -0.5 < fu < 0.5 |
| 23 |
C Southwest C-grid U point |
| 24 |
C |
| 25 |
C fv :: Meridional surface wind stress in N/m^2 |
| 26 |
C > 0 for increase in vVel, which is south to |
| 27 |
C north for cartesian and spherical polar grids |
| 28 |
C Typical range: -0.5 < fv < 0.5 |
| 29 |
C Southwest C-grid V point |
| 30 |
C |
| 31 |
C EmPmR :: Net upward freshwater flux in m/s |
| 32 |
C EmPmR = Evaporation - precipitation - runoff |
| 33 |
C > 0 for increase in salt (ocean salinity) |
| 34 |
C Typical range: -1e-7 < EmPmR < 1e-7 |
| 35 |
C Southwest C-grid tracer point |
| 36 |
C |
| 37 |
C saltFlux :: Net upward salt flux in psu.kg/m^2/s |
| 38 |
C flux of Salt taken out of the ocean per time unit (second). |
| 39 |
C Note: a) only used when salty sea-ice forms or melts. |
| 40 |
C b) units: when salinity (unit= psu) is expressed |
| 41 |
C in g/kg, saltFlux unit becomes g/m^2/s. |
| 42 |
C > 0 for decrease in SSS. |
| 43 |
C Southwest C-grid tracer point |
| 44 |
C |
| 45 |
C Qnet :: Net upward surface heat flux (including shortwave) in W/m^2 |
| 46 |
C Qnet = latent + sensible + net longwave + net shortwave |
| 47 |
C > 0 for decrease in theta (ocean cooling) |
| 48 |
C Typical range: -250 < Qnet < 600 |
| 49 |
C Southwest C-grid tracer point |
| 50 |
C |
| 51 |
C Qsw :: Net upward shortwave radiation in W/m^2 |
| 52 |
C Qsw = - ( downward - ice and snow absorption - reflected ) |
| 53 |
C > 0 for decrease in theta (ocean cooling) |
| 54 |
C Typical range: -350 < Qsw < 0 |
| 55 |
C Southwest C-grid tracer point |
| 56 |
C |
| 57 |
C dQdT :: Thermal relaxation coefficient in W/m^2/degrees |
| 58 |
C Southwest C-grid tracer point |
| 59 |
C |
| 60 |
C SST :: Sea surface temperature in degrees C for relaxation |
| 61 |
C Southwest C-grid tracer point |
| 62 |
C |
| 63 |
C SSS :: Sea surface salinity in psu for relaxation |
| 64 |
C Southwest C-grid tracer point |
| 65 |
C |
| 66 |
C lambdaThetaClimRelax :: Inverse time scale for relaxation ( 1/s ). |
| 67 |
C |
| 68 |
C lambdaSaltClimRelax :: Inverse time scale for relaxation ( 1/s ). |
| 69 |
|
| 70 |
C pload :: for the ocean: atmospheric pressure at z=eta |
| 71 |
C Units are Pa=N/m^2 |
| 72 |
C for the atmosphere: geopotential of the orography |
| 73 |
C Units are meters (converted) |
| 74 |
C sIceLoad :: sea-ice loading, expressed in Mass of ice+snow / area unit |
| 75 |
C Units are kg/m^2 |
| 76 |
C Note: only used with Sea-Ice & RealFreshWater formulation |
| 77 |
C EddyTaux -Zonal Eddy stress in N/m^2 used in external_forcing.F |
| 78 |
C Eddytauy -Meridional Eddy stress in N/m^2 used in external_forcing.F |
| 79 |
C EfluxY - y-component of Eliassen-Palm flux vector |
| 80 |
C EfluxP - p-component of Eliassen-Palm flux vector |
| 81 |
|
| 82 |
COMMON /FFIELDS_fu/ fu |
| 83 |
COMMON /FFIELDS_fv/ fv |
| 84 |
COMMON /FFIELDS_Qnet/ Qnet |
| 85 |
COMMON /FFIELDS_Qsw/ Qsw |
| 86 |
COMMON /FFIELDS_dQdT/ dQdT |
| 87 |
COMMON /FFIELDS_EmPmR/ EmPmR |
| 88 |
COMMON /FFIELDS_saltFlux/ saltFlux |
| 89 |
COMMON /FFIELDS_SST/ SST |
| 90 |
COMMON /FFIELDS_SSS/ SSS |
| 91 |
COMMON /FFIELDS_lambdaThetaClimRelax/ lambdaThetaClimRelax |
| 92 |
COMMON /FFIELDS_lambdaSaltClimRelax/ lambdaSaltClimRelax |
| 93 |
#ifdef ATMOSPHERIC_LOADING |
| 94 |
COMMON /FFIELDS_pload/ pload |
| 95 |
COMMON /FFIELDS_sIceLoad/ sIceLoad |
| 96 |
#endif |
| 97 |
|
| 98 |
_RS fu (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 99 |
_RS fv (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 100 |
_RS Qnet (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 101 |
_RS Qsw (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 102 |
_RS dQdT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 103 |
_RS EmPmR (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 104 |
_RS saltFlux (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 105 |
_RS SST (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 106 |
_RS SSS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 107 |
_RS lambdaThetaClimRelax(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 108 |
_RS lambdaSaltClimRelax(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 109 |
#ifdef ATMOSPHERIC_LOADING |
| 110 |
_RS pload (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 111 |
_RS sIceLoad (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 112 |
#endif |
| 113 |
|
| 114 |
#ifdef ALLOW_EP_FLUX |
| 115 |
COMMON /efluxFFIELDS/ EfluxY,EfluxP |
| 116 |
_RL EfluxY (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 117 |
_RL EfluxP (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 118 |
#endif |
| 119 |
|
| 120 |
#ifdef ALLOW_TAU_EDDY |
| 121 |
COMMON /edtauFFIELDS/ EddyTaux,EddyTauy |
| 122 |
_RS EddyTaux (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 123 |
_RS EddyTauy (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
| 124 |
#endif |
| 125 |
|
| 126 |
#ifndef ALLOW_EXF |
| 127 |
C taux[0,1] :: Temp. for zonal wind stress |
| 128 |
C tauy[0,1] :: Temp. for merid. wind stress |
| 129 |
C Qnet[0,1] :: Temp. for heat flux |
| 130 |
C EmPmR[0,1] :: Temp. for fresh water flux |
| 131 |
C saltFlux[0,1] :: Temp. for isurface salt flux |
| 132 |
C SST[0,1] :: Temp. for theta climatalogy |
| 133 |
C SSS[0,1] :: Temp. for theta climatalogy |
| 134 |
C Qsw[0,1] :: Temp. for short wave component of heat flux |
| 135 |
C pload[0,1] :: Temp. for atmospheric pressure at z=eta |
| 136 |
C [0,1] :: End points for interpolation |
| 137 |
C Above use static heap storage to allow exchange. |
| 138 |
|
| 139 |
COMMON /TDFIELDS/ |
| 140 |
& taux0, tauy0, Qnet0, EmPmR0, SST0, SSS0, |
| 141 |
& taux1, tauy1, Qnet1, EmPmR1, SST1, SSS1, |
| 142 |
& saltFlux0, saltFlux1 |
| 143 |
#ifdef SHORTWAVE_HEATING |
| 144 |
& , Qsw0, Qsw1 |
| 145 |
#endif |
| 146 |
#ifdef ATMOSPHERIC_LOADING |
| 147 |
& , pload0, pload1 |
| 148 |
#endif |
| 149 |
|
| 150 |
_RS taux0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 151 |
_RS tauy0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 152 |
_RS Qnet0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 153 |
_RS EmPmR0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 154 |
_RS saltFlux0(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 155 |
_RS SST0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 156 |
_RS SSS0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 157 |
_RS taux1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 158 |
_RS tauy1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 159 |
_RS Qnet1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 160 |
_RS EmPmR1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 161 |
_RS saltFlux1(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 162 |
_RS SST1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 163 |
_RS SSS1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 164 |
#ifdef ATMOSPHERIC_LOADING |
| 165 |
_RS pload0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 166 |
_RS pload1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 167 |
#endif |
| 168 |
#ifdef SHORTWAVE_HEATING |
| 169 |
_RS Qsw1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 170 |
_RS Qsw0 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 171 |
#endif |
| 172 |
#endif /* ALLOW_EXF */ |
| 173 |
|
| 174 |
C surfaceForcingU units are r_unit.m/s^2 (=m^2/s^2 if r=z) |
| 175 |
C -> usage in gU: gU = gU + surfaceForcingU/drF [m/s^2] |
| 176 |
C surfaceForcingV units are r_unit.m/s^2 (=m^2/s^-2 if r=z) |
| 177 |
C -> usage in gU: gV = gV + surfaceForcingV/drF [m/s^2] |
| 178 |
C |
| 179 |
C surfaceForcingS units are r_unit.psu/s (=psu.m/s if r=z) |
| 180 |
C - EmPmR * S_surf plus salinity relaxation*drF(1) |
| 181 |
C -> usage in gS: gS = gS + surfaceForcingS/drF [psu/s] |
| 182 |
C |
| 183 |
C surfaceForcingT units are r_unit.Kelvin/s (=Kelvin.m/s if r=z) |
| 184 |
C - Qnet (+Qsw) plus temp. relaxation*drF(1) |
| 185 |
C -> calculate -lambda*(T(model)-T(clim)) |
| 186 |
C Qnet assumed to be net heat flux including ShortWave rad. |
| 187 |
C -> usage in gT: gT = gT + surfaceforcingT/drF [K/s] |
| 188 |
C surfaceForcingTice |
| 189 |
C - equivalent Temperature flux in the top level that corresponds |
| 190 |
C to the melting or freezing of sea-ice. |
| 191 |
C Note that the surface level temperature is modified |
| 192 |
C directly by the sea-ice model in order to maintain |
| 193 |
C water temperature under sea-ice at the freezing |
| 194 |
C point. But we need to keep track of the |
| 195 |
C equivalent amount of heat that this surface-level |
| 196 |
C temperature change implies because it is used by |
| 197 |
C the KPP package (kpp_calc.F and kpp_transport_t.F). |
| 198 |
C Units are r_unit.K/s (=Kelvin.m/s if r=z) (>0 for ocean warming). |
| 199 |
|
| 200 |
COMMON /SURFACE_FORCING/ |
| 201 |
& surfaceForcingU, |
| 202 |
& surfaceForcingV, |
| 203 |
& surfaceForcingT, |
| 204 |
& surfaceForcingS, |
| 205 |
& surfaceForcingTice |
| 206 |
_RL surfaceForcingU (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 207 |
_RL surfaceForcingV (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 208 |
_RL surfaceForcingT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 209 |
_RL surfaceForcingS (1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
| 210 |
_RL surfaceForcingTice(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
Parent Directory
| 
Revision Log
| 
Revision Graph