| 1 |
mlosch |
1.7 |
C $Header: /u/gcmpack/models/MITgcmUV/model/src/external_forcing_surf.F,v 1.6 2002/02/10 00:39:22 jmc Exp $ |
| 2 |
cnh |
1.5 |
C $Name: $ |
| 3 |
heimbach |
1.1 |
|
| 4 |
|
|
#include "CPP_OPTIONS.h" |
| 5 |
|
|
|
| 6 |
cnh |
1.5 |
CBOP |
| 7 |
|
|
C !ROUTINE: EXTERNAL_FORCING_SURF |
| 8 |
|
|
C !INTERFACE: |
| 9 |
heimbach |
1.2 |
SUBROUTINE EXTERNAL_FORCING_SURF( |
| 10 |
|
|
I bi, bj, iMin, iMax, jMin, jMax, |
| 11 |
|
|
I myThid ) |
| 12 |
cnh |
1.5 |
C !DESCRIPTION: \bv |
| 13 |
|
|
C *==========================================================* |
| 14 |
|
|
C | SUBROUTINE EXTERNAL_FORCING_SURF |
| 15 |
|
|
C | o Determines forcing terms based on external fields |
| 16 |
|
|
C | relaxation terms etc. |
| 17 |
|
|
C *==========================================================* |
| 18 |
|
|
C \ev |
| 19 |
|
|
|
| 20 |
|
|
C !USES: |
| 21 |
heimbach |
1.1 |
IMPLICIT NONE |
| 22 |
|
|
C === Global variables === |
| 23 |
|
|
#include "SIZE.h" |
| 24 |
|
|
#include "EEPARAMS.h" |
| 25 |
|
|
#include "PARAMS.h" |
| 26 |
|
|
#include "FFIELDS.h" |
| 27 |
|
|
#include "DYNVARS.h" |
| 28 |
|
|
#include "GRID.h" |
| 29 |
jmc |
1.6 |
#ifdef NONLIN_FRSURF |
| 30 |
|
|
#include "SURFACE.h" |
| 31 |
|
|
#endif |
| 32 |
heimbach |
1.1 |
|
| 33 |
cnh |
1.5 |
C !INPUT/OUTPUT PARAMETERS: |
| 34 |
heimbach |
1.1 |
C === Routine arguments === |
| 35 |
cnh |
1.5 |
C myThid :: Thread no. that called this routine. |
| 36 |
heimbach |
1.1 |
INTEGER myThid |
| 37 |
cnh |
1.5 |
INTEGER bi,bj |
| 38 |
|
|
INTEGER iMin, iMax |
| 39 |
|
|
INTEGER jMin, jMax |
| 40 |
heimbach |
1.1 |
|
| 41 |
cnh |
1.5 |
C !LOCAL VARIABLES: |
| 42 |
heimbach |
1.1 |
C === Local variables === |
| 43 |
cnh |
1.5 |
INTEGER i,j |
| 44 |
mlosch |
1.7 |
C number of surface interface layer |
| 45 |
|
|
INTEGER kSurface |
| 46 |
|
|
_RL convertVol2Mass |
| 47 |
cnh |
1.5 |
CEOP |
| 48 |
heimbach |
1.2 |
|
| 49 |
mlosch |
1.7 |
if ( buoyancyRelation .eq. 'OCEANICP' ) then |
| 50 |
|
|
kSurface = Nr |
| 51 |
|
|
convertVol2Mass = horiVertRatio |
| 52 |
|
|
else |
| 53 |
|
|
kSurface = 1 |
| 54 |
|
|
convertVol2Mass = 1. _d 0 |
| 55 |
|
|
endif |
| 56 |
|
|
|
| 57 |
heimbach |
1.2 |
DO j = jMin, jMax |
| 58 |
|
|
DO i = iMin, iMax |
| 59 |
heimbach |
1.1 |
|
| 60 |
|
|
c Zonal wind stress fu: |
| 61 |
jmc |
1.6 |
surfaceTendencyU(i,j,bi,bj) = |
| 62 |
mlosch |
1.7 |
& fu(i,j,bi,bj)*horiVertRatio*recip_rhoConst |
| 63 |
|
|
& *recip_drF(kSurface)*recip_hFacW(i,j,kSurface,bi,bj) |
| 64 |
heimbach |
1.2 |
c Meridional wind stress fv: |
| 65 |
jmc |
1.6 |
surfaceTendencyV(i,j,bi,bj) = |
| 66 |
mlosch |
1.7 |
& fv(i,j,bi,bj)*horiVertRatio*recip_rhoConst |
| 67 |
|
|
& *recip_drF(kSurface)*recip_hFacS(i,j,kSurface,bi,bj) |
| 68 |
heimbach |
1.1 |
c Net heat flux Qnet: |
| 69 |
jmc |
1.6 |
surfaceTendencyT(i,j,bi,bj) = |
| 70 |
mlosch |
1.7 |
& -Qnet(i,j,bi,bj)*recip_Cp*horiVertRatio*recip_rhoConst |
| 71 |
|
|
& *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 72 |
|
|
& -lambdaThetaClimRelax |
| 73 |
|
|
& *(theta(i,j,kSurface,bi,bj)-SST(i,j,bi,bj)) |
| 74 |
jmc |
1.6 |
C Salt Flux (restoring term) : |
| 75 |
|
|
C surfaceTendencyS(i,j,bi,bj) = |
| 76 |
mlosch |
1.7 |
C & -lambdaSaltClimRelax*(salt(i,j,kSurface,bi,bj)-SSS(i,j,bi,bj)) |
| 77 |
jmc |
1.6 |
C notes : because truncation is different when this tendency is splitted |
| 78 |
|
|
C in 2 parts, keep this salt flux with freshwater flux (see below) |
| 79 |
|
|
|
| 80 |
|
|
#ifdef ALLOW_PASSIVE_TRACER |
| 81 |
|
|
c *** define the tracer surface tendency here *** |
| 82 |
|
|
#endif /* ALLOW_PASSIVE_TRACER */ |
| 83 |
heimbach |
1.2 |
|
| 84 |
|
|
ENDDO |
| 85 |
|
|
ENDDO |
| 86 |
jmc |
1.6 |
|
| 87 |
|
|
c---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 88 |
|
|
C Surface salinity tendency and freshwater flux EmPmR: |
| 89 |
|
|
|
| 90 |
|
|
IF (.NOT.useRealFreshWaterFlux .OR. nonlinFreeSurf .LE. 0 ) THEN |
| 91 |
|
|
|
| 92 |
|
|
c- EmPmR does not really affect the water column height (for tracer budget) |
| 93 |
|
|
c and is converted to a salt tendency. |
| 94 |
|
|
|
| 95 |
|
|
IF (convertFW2Salt .EQ. -1.) THEN |
| 96 |
|
|
c- converts EmPmR to salinity tendency using surface local salinity |
| 97 |
|
|
DO j = jMin, jMax |
| 98 |
|
|
DO i = iMin, iMax |
| 99 |
|
|
surfaceTendencyS(i,j,bi,bj) = |
| 100 |
mlosch |
1.7 |
& + EmPmR(i,j,bi,bj)*salt(i,j,kSurface,bi,bj) |
| 101 |
|
|
& *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 102 |
|
|
& *convertVol2Mass |
| 103 |
|
|
& -lambdaSaltClimRelax |
| 104 |
|
|
& *(salt(i,j,kSurface,bi,bj)-SSS(i,j,bi,bj)) |
| 105 |
jmc |
1.6 |
ENDDO |
| 106 |
|
|
ENDDO |
| 107 |
|
|
ELSE |
| 108 |
|
|
c- converts EmPmR to virtual salt flux using uniform salinity (default=35) |
| 109 |
|
|
DO j = jMin, jMax |
| 110 |
|
|
DO i = iMin, iMax |
| 111 |
|
|
surfaceTendencyS(i,j,bi,bj) = |
| 112 |
|
|
& + EmPmR(i,j,bi,bj)*convertFW2Salt |
| 113 |
mlosch |
1.7 |
& *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 114 |
|
|
& *convertVol2Mass |
| 115 |
|
|
& -lambdaSaltClimRelax*(salt(i,j,kSurface,bi,bj)-SSS(i,j,bi,bj)) |
| 116 |
jmc |
1.6 |
ENDDO |
| 117 |
|
|
ENDDO |
| 118 |
|
|
ENDIF |
| 119 |
|
|
|
| 120 |
|
|
#ifdef NONLIN_FRSURF |
| 121 |
|
|
c---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 122 |
|
|
ELSE |
| 123 |
|
|
|
| 124 |
|
|
c Salt Flux (restoring term) : |
| 125 |
|
|
DO j = jMin, jMax |
| 126 |
|
|
DO i = iMin, iMax |
| 127 |
|
|
surfaceTendencyS(i,j,bi,bj) = |
| 128 |
mlosch |
1.7 |
& -lambdaSaltClimRelax |
| 129 |
|
|
& *(salt(i,j,kSurface,bi,bj)-SSS(i,j,bi,bj)) |
| 130 |
jmc |
1.6 |
ENDDO |
| 131 |
|
|
ENDDO |
| 132 |
|
|
|
| 133 |
|
|
c- NonLin_FrSurf and RealFreshWaterFlux : PmEpR effectively changes |
| 134 |
|
|
c the water column height ; temp., salt, (tracer) flux associated |
| 135 |
|
|
c with this input/output of water is added here to the surface tendency. |
| 136 |
|
|
c |
| 137 |
|
|
c NB: PmEpR lag 1 time step behind EmPmR ( PmEpR_n = - EmPmR_n-1 ) to stay |
| 138 |
|
|
c consitent with volume change (=d/dt etaN). |
| 139 |
|
|
|
| 140 |
|
|
IF (temp_EvPrRn.NE.UNSET_RL) THEN |
| 141 |
|
|
DO j = jMin, jMax |
| 142 |
|
|
DO i = iMin, iMax |
| 143 |
|
|
surfaceTendencyT(i,j,bi,bj) = surfaceTendencyT(i,j,bi,bj) |
| 144 |
mlosch |
1.7 |
& + PmEpR(i,j,bi,bj) |
| 145 |
|
|
& *( temp_EvPrRn - theta(i,j,kSurface,bi,bj) ) |
| 146 |
|
|
& *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 147 |
|
|
& *convertVol2Mass |
| 148 |
jmc |
1.6 |
ENDDO |
| 149 |
|
|
ENDDO |
| 150 |
|
|
ENDIF |
| 151 |
|
|
|
| 152 |
|
|
IF (salt_EvPrRn.NE.UNSET_RL) THEN |
| 153 |
|
|
DO j = jMin, jMax |
| 154 |
|
|
DO i = iMin, iMax |
| 155 |
|
|
surfaceTendencyS(i,j,bi,bj) = surfaceTendencyS(i,j,bi,bj) |
| 156 |
mlosch |
1.7 |
& + PmEpR(i,j,bi,bj) |
| 157 |
|
|
& *( salt_EvPrRn - salt(i,j,kSurface,bi,bj) ) |
| 158 |
|
|
& *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 159 |
|
|
& *convertVol2Mass |
| 160 |
jmc |
1.6 |
ENDDO |
| 161 |
|
|
ENDDO |
| 162 |
|
|
ENDIF |
| 163 |
|
|
|
| 164 |
|
|
#ifdef ALLOW_PASSIVE_TRACER |
| 165 |
|
|
c *** add the tracer flux associated with P-E+R here *** |
| 166 |
|
|
c IF (trac_EvPrRn.NE.UNSET_RL) THEN |
| 167 |
mlosch |
1.7 |
c & + PmEpR(i,j,bi,bj)*( trac_EvPrRn - tr1(i,j,kSurface,bi,bj) ) |
| 168 |
|
|
c & *recip_drF(kSurface)*recip_hFacC(i,j,kSurface,bi,bj) |
| 169 |
jmc |
1.6 |
c ENDIF |
| 170 |
|
|
#endif /* ALLOW_PASSIVE_TRACER */ |
| 171 |
|
|
|
| 172 |
|
|
#endif /* NONLIN_FRSURF */ |
| 173 |
|
|
ENDIF |
| 174 |
heimbach |
1.1 |
|
| 175 |
|
|
RETURN |
| 176 |
|
|
END |
Parent Directory
| 
Revision Log
| 
Revision Graph