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dgoldberg |
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C $Header: /u/gcmpack/MITgcm/pkg/shelfice/shelfice_forcing.F,v 1.5 2014/07/09 17:00:50 jmc Exp $ |
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C $Name: $ |
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#include "SHELFICE_OPTIONS.h" |
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C-- File shelfice_forcing.F: |
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C-- Contents |
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C-- o SHELFICE_FORCING_T |
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C-- o SHELFICE_FORCING_S |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: SHELFICE_FORCING_T |
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C !INTERFACE: |
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SUBROUTINE SHELFICE_FORCING_T( |
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U gT_arr, |
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I iMin,iMax,jMin,jMax, kLev, bi, bj, |
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I myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R SHELFICE_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 shelfice sources |
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C | e.g. heat flux |
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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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c#include "DYNVARS.h" |
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c#include "FFIELDS.h" |
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#include "SHELFICE.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C gT_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C kLev :: Current vertical level index |
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C bi,bj :: Current tile indices |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number |
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C myThid :: my Thread Id number |
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_RL gT_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER kLev, bi, bj |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef ALLOW_SHELFICE |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C i,j :: Loop counters |
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C kp1,km1 :: index of next/previous level |
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C gTloc :: local tendency in boundary layer |
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C drLoc :: fractional cell width of boundary layer in (k+/-1)th layer |
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INTEGER i, j |
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INTEGER Kp1, Km1 |
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_RS drLoc |
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_RL gTloc |
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CEOP |
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C-- Forcing term |
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IF ( SHELFICEboundaryLayer ) THEN |
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DO j=1,sNy |
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DO i=1,sNx |
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IF ( kLev .LT. Nr .AND. kLev .EQ. kTopC(I,J,bi,bj) ) THEN |
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kp1 = MIN(kLev+1,Nr) |
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drLoc = drF(kLev)*( 1. _d 0 - _hFacC(I,J,kLev,bi,bj) ) |
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drLoc = MIN( drLoc, drF(Kp1) * _hFacC(I,J,Kp1,bi,bj) ) |
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drLoc = MAX( drLoc, 0. _d 0) |
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gTloc = shelficeForcingT(i,j,bi,bj) |
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& /( drF(kLev)*_hFacC(I,J,kLev,bi,bj)+drLoc ) |
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gT_arr(i,j) = gT_arr(i,j) + gTloc |
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ELSEIF ( kLev .GT. 1 .AND. kLev-1 .EQ. kTopC(I,J,bi,bj) ) THEN |
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km1 = MAX(kLev-1,1) |
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drLoc = drF(km1)*( 1. _d 0 - _hFacC(I,J,km1,bi,bj) ) |
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drLoc = MIN( drLoc, drF(kLev) * _hFacC(I,J,kLev,bi,bj) ) |
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drLoc = MAX( drLoc, 0. _d 0) |
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gTloc = shelficeForcingT(i,j,bi,bj) |
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& /( drF(km1)*_hFacC(I,J,km1,bi,bj)+drLoc ) |
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C The following is shorthand for the averaged tendency: |
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C gT(k+1) = gT(k+1) + { gTloc * [drF(k)*(1-hFacC(k))] |
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C + 0 * [drF(k+1) - drF(k)*(1-hFacC(k))] |
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C }/[drF(k+1)*hFacC(k+1)] |
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gT_arr(i,j) = gT_arr(i,j) + gTloc |
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& * drLoc*recip_drF(kLev)* _recip_hFacC(i,j,kLev,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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#endif /* ALLOW_SHELFICE */ |
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RETURN |
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END |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: SHELFICE_FORCING_S |
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C !INTERFACE: |
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SUBROUTINE SHELFICE_FORCING_S( |
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U gS_arr, |
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I iMin,iMax,jMin,jMax, kLev, bi, bj, |
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I myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R SHELFICE_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 shelfice sources |
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C | e.g. fresh-water flux (virtual salt flux). |
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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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c#include "DYNVARS.h" |
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c#include "FFIELDS.h" |
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#include "SHELFICE.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C gS_arr :: the tendency array |
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C iMin,iMax :: Working range of x-index for applying forcing. |
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C jMin,jMax :: Working range of y-index for applying forcing. |
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C kLev :: Current vertical level index |
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C bi,bj :: Current tile indices |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number |
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C myThid :: my Thread Id number |
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_RL gS_arr(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER iMin, iMax, jMin, jMax |
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INTEGER kLev, bi, bj |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef ALLOW_SHELFICE |
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C !LOCAL VARIABLES: |
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C i,j :: Loop counters |
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C kp/m1 :: index of next/previous level |
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C gTloc :: local tendency in boundary layer |
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C drLoc :: fractional cell width of boundary layer |
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INTEGER i, j |
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INTEGER Kp1, Km1 |
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_RS drLoc |
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_RL gSloc |
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CEOP |
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C-- Forcing term |
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IF ( SHELFICEboundaryLayer ) THEN |
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DO j=1,sNy |
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DO i=1,sNx |
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IF ( kLev .LT. Nr .AND. kLev .EQ. kTopC(I,J,bi,bj) ) THEN |
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kp1 = MIN(kLev+1,Nr) |
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drLoc = drF(kLev)*( 1. _d 0 - _hFacC(I,J,kLev,bi,bj) ) |
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drLoc = MIN( drLoc, drF(Kp1) * _hFacC(I,J,Kp1,bi,bj) ) |
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drLoc = MAX( drLoc, 0. _d 0) |
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gSloc = shelficeForcingS(i,j,bi,bj) |
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& /( drF(kLev)*_hFacC(I,J,kLev,bi,bj)+drLoc ) |
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gS_arr(i,j) = gS_arr(i,j) + gSloc |
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ELSEIF ( kLev .GT. 1 .AND. kLev-1 .EQ. kTopC(I,J,bi,bj) ) THEN |
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km1 = MAX(kLev-1,1) |
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drLoc = drF(km1)*( 1. _d 0 - _hFacC(I,J,km1,bi,bj) ) |
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drLoc = MIN( drLoc, drF(kLev) * _hFacC(I,J,kLev,bi,bj) ) |
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drLoc = MAX( drLoc, 0. _d 0) |
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gSloc = shelficeForcingS(i,j,bi,bj) |
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& /( drF(km1)*_hFacC(I,J,km1,bi,bj)+drLoc ) |
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C The following is shorthand for the averaged tendency: |
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C gS(k+1) = gS(k+1) + { gSloc * [drF(k)*(1-hFacC(k))] |
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C + 0 * [drF(k+1) - drF(k)*(1-hFacC(k))] |
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C }/[drF(k+1)*hFacC(k+1)] |
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gS_arr(i,j) = gS_arr(i,j) + gSloc |
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& * drLoc*recip_drF(kLev)* _recip_hFacC(i,j,kLev,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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#endif /* ALLOW_SHELFICE */ |
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RETURN |
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END |
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