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cnh |
1.1 |
C $Header: /u/u0/gcmpack/MITgcm/model/src/external_forcing.F,v 1.19 2003/06/19 15:00:45 heimbach Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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#ifdef ALLOW_OBCS |
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# include "OBCS_OPTIONS.h" |
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#endif |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_U |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_U |
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C | o Contains problem specific forcing for zonal velocity. |
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C *==========================================================* |
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C | Adds terms to gU for forcing by external sources |
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C | e.g. wind stress, bottom friction etc.................. |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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C number of surface interface layer |
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INTEGER kSurface |
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C Cheap sponge layer |
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_RS recip_tauSp(5) |
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INTEGER spWidth |
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_RS curRecipTau |
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INTEGER jFromNBndy, jFromSBndy, |
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& jNorthBndy, jSouthBndy, jG |
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CEOP |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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C-- Forcing term |
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C Add windstress momentum impulse into the top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gU(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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& +foFacMom*surfaceTendencyU(i,j,bi,bj)*0.0100D0 |
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& *_maskW(i,j,kLev,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
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C Damping time scale decreases away from boundary so that |
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C tau = 1 day, 5days, 10days, 20days, 60days |
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spWidth = 5 |
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recip_tauSp(1) = 1./(86400.*1. ) |
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recip_tauSp(2) = 1./(86400.*5. ) |
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recip_tauSp(3) = 1./(86400.*10.) |
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recip_tauSp(4) = 1./(86400.*20.) |
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recip_tauSp(5) = 1./(86400.*60.) |
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jSouthBndy = 5 |
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jNorthBndy = ny-5+1 |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
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jFromNBndy = jNorthBndy-jG |
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jFromSBndy = jSouthBndy-jG |
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curRecipTau=0. |
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IF ( jFromNBndy .LE. 0 ) THEN |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
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ENDIF |
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IF ( jFromSBndy .GE. 0 ) THEN |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
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ENDIF |
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gu(i,j,kLev,bi,bj) = gU(i,j,kLev,bi,bj) |
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& -curRecipTau*uVel(i,j,Klev,bi,bj) |
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ENDDO |
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ENDDO |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_U( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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ENDIF |
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#endif |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_V |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_V( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
| 123 |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_V |
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C | o Contains problem specific forcing for merid velocity. |
| 126 |
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C *==========================================================* |
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C | Adds terms to gV for forcing by external sources |
| 128 |
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C | e.g. wind stress, bottom friction etc.................. |
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C *==========================================================* |
| 130 |
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C \ev |
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| 132 |
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C !USES: |
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IMPLICIT NONE |
| 134 |
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C == Global data == |
| 135 |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
| 137 |
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#include "PARAMS.h" |
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#include "GRID.h" |
| 139 |
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#include "DYNVARS.h" |
| 140 |
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#include "FFIELDS.h" |
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| 142 |
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C !INPUT/OUTPUT PARAMETERS: |
| 143 |
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C == Routine arguments == |
| 144 |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
| 146 |
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C jMin |
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C jMax |
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C kLev |
| 149 |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
| 150 |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
| 154 |
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C == Local variables == |
| 155 |
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C Loop counters |
| 156 |
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INTEGER I, J |
| 157 |
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C number of surface interface layer |
| 158 |
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INTEGER kSurface |
| 159 |
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| 160 |
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C == Cheap sponge layer == |
| 161 |
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_RS recip_tauSp(5) |
| 162 |
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INTEGER spWidth |
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_RS curRecipTau |
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INTEGER jFromNBndy, jFromSBndy, |
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& jNorthBndy, jSouthBndy, jG |
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| 168 |
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CEOP |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
| 173 |
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kSurface = 1 |
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endif |
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| 176 |
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C-- Forcing term |
| 177 |
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C Add windstress momentum impulse into the top-layer |
| 178 |
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IF ( kLev .EQ. kSurface ) THEN |
| 179 |
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DO j=jMin,jMax |
| 180 |
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DO i=iMin,iMax |
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gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) |
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& +foFacMom*surfaceTendencyV(i,j,bi,bj)*0.0100D0 |
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& *_maskS(i,j,kLev,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
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IF (useOBCS) THEN |
| 190 |
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CALL OBCS_SPONGE_V( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
| 193 |
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ENDIF |
| 194 |
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#endif |
| 195 |
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| 196 |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
| 197 |
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C Damping time scale decreases away from boundary so that |
| 198 |
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C tau = 1 day, 5days, 10days, 20days, 60days |
| 199 |
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spWidth = 5 |
| 200 |
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recip_tauSp(1) = 1./(86400.*1. ) |
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recip_tauSp(2) = 1./(86400.*5. ) |
| 202 |
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recip_tauSp(3) = 1./(86400.*10.) |
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recip_tauSp(4) = 1./(86400.*20.) |
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recip_tauSp(5) = 1./(86400.*60.) |
| 205 |
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jSouthBndy = 5 |
| 206 |
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jNorthBndy = ny-5+1 |
| 207 |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
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jFromNBndy = jNorthBndy-jG |
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jFromSBndy = jSouthBndy-jG |
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curRecipTau=0. |
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IF ( jFromNBndy .LE. 0 ) THEN |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
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ENDIF |
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IF ( jFromSBndy .GE. 0 ) THEN |
| 217 |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
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ENDIF |
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gV(i,j,kLev,bi,bj) = gV(i,j,kLev,bi,bj) |
| 220 |
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& -curRecipTau*vVel(i,j,Klev,bi,bj) |
| 221 |
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ENDDO |
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ENDDO |
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RETURN |
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END |
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CBOP |
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C !ROUTINE: EXTERNAL_FORCING_T |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_T( |
| 230 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
| 231 |
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I myCurrentTime,myThid) |
| 232 |
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C !DESCRIPTION: \bv |
| 233 |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_T |
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C | o Contains problem specific forcing for temperature. |
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C *==========================================================* |
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C | Adds terms to gT for forcing by external sources |
| 238 |
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C | e.g. heat flux, climatalogical relaxation.............. |
| 239 |
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C *==========================================================* |
| 240 |
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C \ev |
| 241 |
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| 242 |
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C !USES: |
| 243 |
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IMPLICIT NONE |
| 244 |
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C == Global data == |
| 245 |
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#include "SIZE.h" |
| 246 |
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#include "EEPARAMS.h" |
| 247 |
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#include "PARAMS.h" |
| 248 |
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#include "GRID.h" |
| 249 |
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#include "DYNVARS.h" |
| 250 |
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#include "FFIELDS.h" |
| 251 |
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#ifdef SHORTWAVE_HEATING |
| 252 |
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integer two |
| 253 |
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_RL minusone |
| 254 |
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parameter (two=2,minusone=-1.) |
| 255 |
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_RL swfracb(two) |
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#endif |
| 257 |
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| 258 |
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C !INPUT/OUTPUT PARAMETERS: |
| 259 |
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C == Routine arguments == |
| 260 |
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C iMin - Working range of tile for applying forcing. |
| 261 |
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C iMax |
| 262 |
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C jMin |
| 263 |
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C jMax |
| 264 |
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C kLev |
| 265 |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
| 266 |
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_RL myCurrentTime |
| 267 |
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INTEGER myThid |
| 268 |
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CEndOfInterface |
| 269 |
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| 270 |
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C !LOCAL VARIABLES: |
| 271 |
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C == Local variables == |
| 272 |
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C Loop counters |
| 273 |
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INTEGER I, J |
| 274 |
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C number of surface interface layer |
| 275 |
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INTEGER kSurface |
| 276 |
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C Cheap sponge layer |
| 277 |
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_RS recip_tauSp(5) |
| 278 |
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INTEGER spWidth |
| 279 |
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_RS curRecipTau |
| 280 |
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INTEGER jFromNBndy, jFromSBndy, |
| 281 |
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& jNorthBndy, jSouthBndy, jG |
| 282 |
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| 283 |
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CEOP |
| 284 |
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| 285 |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
| 286 |
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kSurface = Nr |
| 287 |
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else |
| 288 |
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kSurface = 1 |
| 289 |
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endif |
| 290 |
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| 291 |
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C-- Forcing term |
| 292 |
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C Add heat in top-layer |
| 293 |
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IF ( kLev .EQ. kSurface ) THEN |
| 294 |
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DO j=jMin,jMax |
| 295 |
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DO i=iMin,iMax |
| 296 |
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gT(i,j,kLev,bi,bj)=gT(i,j,kLev,bi,bj) |
| 297 |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyT(i,j,bi,bj) |
| 298 |
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ENDDO |
| 299 |
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ENDDO |
| 300 |
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ENDIF |
| 301 |
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| 302 |
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#ifdef SHORTWAVE_HEATING |
| 303 |
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C Penetrating SW radiation |
| 304 |
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swfracb(1)=abs(rF(klev)) |
| 305 |
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swfracb(2)=abs(rF(klev+1)) |
| 306 |
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call SWFRAC( |
| 307 |
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I two,minusone, |
| 308 |
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I myCurrentTime,myThid, |
| 309 |
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U swfracb) |
| 310 |
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DO j=jMin,jMax |
| 311 |
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DO i=iMin,iMax |
| 312 |
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gT(i,j,klev,bi,bj) = gT(i,j,klev,bi,bj) |
| 313 |
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& -maskC(i,j,klev,bi,bj)*Qsw(i,j,bi,bj)*(swfracb(1)-swfracb(2)) |
| 314 |
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& *recip_Cp*recip_rhoConst*recip_drF(klev) |
| 315 |
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ENDDO |
| 316 |
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ENDDO |
| 317 |
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#endif |
| 318 |
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| 319 |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
| 320 |
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IF (useOBCS) THEN |
| 321 |
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CALL OBCS_SPONGE_T( |
| 322 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
| 323 |
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I myCurrentTime,myThid) |
| 324 |
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ENDIF |
| 325 |
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#endif |
| 326 |
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|
| 327 |
|
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C-- Create a sponge layer where flow is linearly damped over entire water column |
| 328 |
|
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C Damping time scale decreases away from boundary so that |
| 329 |
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C tau = 1 day, 5days, 10days, 20days, 60days |
| 330 |
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spWidth = 5 |
| 331 |
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recip_tauSp(1) = 1./(86400.*1. ) |
| 332 |
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recip_tauSp(2) = 1./(86400.*5. ) |
| 333 |
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recip_tauSp(3) = 1./(86400.*10.) |
| 334 |
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recip_tauSp(4) = 1./(86400.*20.) |
| 335 |
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recip_tauSp(5) = 1./(86400.*60.) |
| 336 |
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jSouthBndy = 5 |
| 337 |
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jNorthBndy = ny-5+1 |
| 338 |
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DO j=jMin,jMax |
| 339 |
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DO i=iMin,iMax |
| 340 |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
| 341 |
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jFromNBndy = jNorthBndy-jG |
| 342 |
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jFromSBndy = jSouthBndy-jG |
| 343 |
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curRecipTau=0. |
| 344 |
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IF ( jFromNBndy .LE. 0 ) THEN |
| 345 |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
| 346 |
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ENDIF |
| 347 |
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IF ( jFromSBndy .GE. 0 ) THEN |
| 348 |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
| 349 |
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ENDIF |
| 350 |
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gT(i,j,kLev,bi,bj) = gT(i,j,kLev,bi,bj) |
| 351 |
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& -curRecipTau*(theta(i,j,Klev,bi,bj)-thetaRef(i,j,kLev,bi,bj)) |
| 352 |
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C & *0.0000D0 |
| 353 |
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ENDDO |
| 354 |
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ENDDO |
| 355 |
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| 356 |
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| 357 |
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RETURN |
| 358 |
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END |
| 359 |
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CBOP |
| 360 |
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C !ROUTINE: EXTERNAL_FORCING_S |
| 361 |
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C !INTERFACE: |
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SUBROUTINE EXTERNAL_FORCING_S( |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R EXTERNAL_FORCING_S |
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C | o Contains problem specific forcing for merid velocity. |
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C *==========================================================* |
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C | Adds terms to gS for forcing by external sources |
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C | e.g. fresh-water flux, climatalogical relaxation....... |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "FFIELDS.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C iMin - Working range of tile for applying forcing. |
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C iMax |
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C jMin |
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C jMax |
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C kLev |
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INTEGER iMin, iMax, jMin, jMax, kLev, bi, bj |
| 394 |
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_RL myCurrentTime |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C Loop counters |
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INTEGER I, J |
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C number of surface interface layer |
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INTEGER kSurface |
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C Cheap sponge layer |
| 404 |
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_RS recip_tauSp(5) |
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INTEGER spWidth |
| 406 |
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_RS curRecipTau |
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INTEGER jFromNBndy, jFromSBndy, |
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& jNorthBndy, jSouthBndy, jG |
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CEOP |
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if ( buoyancyRelation .eq. 'OCEANICP' ) then |
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kSurface = Nr |
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else |
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kSurface = 1 |
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endif |
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| 418 |
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| 419 |
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C-- Forcing term |
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C Add fresh-water in top-layer |
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IF ( kLev .EQ. kSurface ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gS(i,j,kLev,bi,bj)=gS(i,j,kLev,bi,bj) |
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& +maskC(i,j,kLev,bi,bj)*surfaceTendencyS(i,j,bi,bj) |
| 426 |
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ENDDO |
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ENDDO |
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ENDIF |
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| 430 |
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#if (defined (ALLOW_OBCS) && defined (ALLOW_OBCS_SPONGE)) |
| 431 |
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IF (useOBCS) THEN |
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CALL OBCS_SPONGE_S( |
| 433 |
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I iMin, iMax, jMin, jMax,bi,bj,kLev, |
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I myCurrentTime,myThid) |
| 435 |
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ENDIF |
| 436 |
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#endif |
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| 438 |
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C-- Create a sponge layer where flow is linearly damped over entire water column |
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C Damping time scale decreases away from boundary so that |
| 440 |
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C tau = 1 day, 5days, 10days, 20days, 60days |
| 441 |
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spWidth = 5 |
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recip_tauSp(1) = 1./(86400.*1. ) |
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recip_tauSp(2) = 1./(86400.*5. ) |
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recip_tauSp(3) = 1./(86400.*10.) |
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recip_tauSp(4) = 1./(86400.*20.) |
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recip_tauSp(5) = 1./(86400.*60.) |
| 447 |
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jSouthBndy = 5 |
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jNorthBndy = ny-5+1 |
| 449 |
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DO j=jMin,jMax |
| 450 |
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DO i=iMin,iMax |
| 451 |
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jG = myYGlobalLo+(bj-1)*sNy+j-1 |
| 452 |
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jFromNBndy = jNorthBndy-jG |
| 453 |
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jFromSBndy = jSouthBndy-jG |
| 454 |
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curRecipTau=0. |
| 455 |
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IF ( jFromNBndy .LE. 0 ) THEN |
| 456 |
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curRecipTau = recip_tauSp(jFromNBndy+5) |
| 457 |
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ENDIF |
| 458 |
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IF ( jFromSBndy .GE. 0 ) THEN |
| 459 |
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curRecipTau = recip_tauSp(-(jFromSBndy-5)) |
| 460 |
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ENDIF |
| 461 |
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gS(i,j,kLev,bi,bj) = gS(i,j,kLev,bi,bj) |
| 462 |
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& -curRecipTau*(salt(i,j,Klev,bi,bj)-saltRef(i,j,kLev,bi,bj)) |
| 463 |
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C & *0.0000D0 |
| 464 |
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ENDDO |
| 465 |
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ENDDO |
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| 467 |
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RETURN |
| 468 |
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END |
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