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C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_calc_rtrans.F,v 1.5 2006/05/03 23:35:11 heimbach Exp $ |
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C $Name: $ |
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edhill |
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#include "MOM_FLUXFORM_OPTIONS.h" |
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CBOP |
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C !ROUTINE: MOM_CALC_RTRANS |
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C !INTERFACE: |
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SUBROUTINE MOM_CALC_RTRANS( |
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I k, bi, bj, |
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O rTransU, rTransV, |
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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 | SUBROUTINE MOM_CALC_RTRANS |
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C | o Calculate vertical transports at interface k |
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C | above U & V points (West & South face) |
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C *==========================================================* |
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C | r coordinate (z or p): |
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C | is simply half of the 2 vert. Transp at Center location |
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C | r* coordinate: less simple since |
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C | d.eta/dt / H has to be evaluated locally at U & V points |
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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 variables == |
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#include "SIZE.h" |
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#include "DYNVARS.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 "SURFACE.h" |
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#include "MOM_FLUXFORM.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C k :: vertical level |
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C bi,bj :: tile indices |
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C rTransU :: vertical transport (above U point) |
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C rTransV :: vertical transport (above V point) |
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C myTime :: current time |
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C myIter :: current iteration number |
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C myThid :: thread number |
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INTEGER k, bi, bj, myIter, myThid |
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_RL myTime |
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_RL rTransU(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTransV(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C !LOCAL VARIABLES: |
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#ifdef NONLIN_FRSURF |
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C == Local variables in common block == |
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C dWtransC :: vertical transp. difference between r & r* coordinates |
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C dWtransU :: same but above u.point location (West face) |
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C dWtransV :: same but above v.point location (South face) |
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heimbach |
1.5 |
cph need this in a header for the adjoint |
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cph COMMON /LOCAL_MOM_CALC_RTRANS/ |
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cph & dWtransC, dWtransU, dWtransV |
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cph _RL dWtransC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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cph _RL dWtransU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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cph _RL dWtransV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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#endif /* NONLIN_FRSURF */ |
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C == Local variables == |
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C I, J :: Loop counters |
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INTEGER i,j |
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CEOP |
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#ifdef NONLIN_FRSURF |
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IF ( k.EQ.Nr+1 .AND. |
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& useRealFreshWaterFlux .AND. usingPCoords ) THEN |
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C note: deep-model not implemented for P-coordinate + realFreshWaterFlux ; |
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C anelastic: always assumes that rhoFacF(1) = 1 |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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rTransU(i,j) = convertEmP2rUnit* |
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& 0.5 _d 0*( PmEpR( i ,j,bi,bj)*rA( i ,j,bi,bj) |
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& +PmEpR(i-1,j,bi,bj)*rA(i-1,j,bi,bj) ) |
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rTransV(i,j) = convertEmP2rUnit* |
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& 0.5 _d 0*( PmEpR(i, j ,bi,bj)*rA(i, j ,bi,bj) |
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& +PmEpR(i,j-1,bi,bj)*rA(i,j-1,bi,bj) ) |
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ENDDO |
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ENDDO |
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ELSEIF ( k.GT.Nr ) THEN |
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#else /* NONLIN_FRSURF */ |
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IF ( k.GT.Nr ) THEN |
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#endif /* NONLIN_FRSURF */ |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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rTransU(i,j) = 0. |
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rTransV(i,j) = 0. |
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ENDDO |
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ENDDO |
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ELSE |
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C- Calculate vertical transports above U & V points (West & South face): |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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rTransU(i,j) = |
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& 0.5 _d 0*( wVel(i-1,j,k,bi,bj)*rA(i-1,j,bi,bj) |
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& +wVel( i ,j,k,bi,bj)*rA( i ,j,bi,bj) |
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& )*deepFac2F(k)*rhoFacF(k) |
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rTransV(i,j) = |
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& 0.5 _d 0*( wVel(i,j-1,k,bi,bj)*rA(i,j-1,bi,bj) |
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& +wVel(i, j ,k,bi,bj)*rA(i, j ,bi,bj) |
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& )*deepFac2F(k)*rhoFacF(k) |
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ENDDO |
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ENDDO |
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ENDIF |
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#ifdef NONLIN_FRSURF |
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C--- Modify rTransU & rTransV when using r* coordinate: |
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C note: not implemented neither for anelastic nor deep-model. |
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IF ( select_rStar.NE.0 ) THEN |
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# ifndef DISABLE_RSTAR_CODE |
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IF ( k.EQ.1) THEN |
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C- Initialise dWtrans : |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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dWtransC(i,j,bi,bj) = rStarDhCDt(i,j,bi,bj) |
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& *(Ro_surf(i,j,bi,bj)-R_low(i,j,bi,bj)) |
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& *rA(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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dWtransU(i,j,bi,bj) = |
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& 0.5 _d 0*(dWtransC(i-1,j,bi,bj)+dWtransC(i,j,bi,bj)) |
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dWtransV(i,j,bi,bj) = |
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& 0.5 _d 0*(dWtransC(i,j-1,bi,bj)+dWtransC(i,j,bi,bj)) |
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ENDDO |
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ENDDO |
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ELSEIF (k.LE.Nr) THEN |
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C- Update dWtrans from previous value (interface k-1): |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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dWtransC(i,j,bi,bj) = dWtransC(i,j,bi,bj) |
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& - rStarDhCDt(i,j,bi,bj)*drF(k-1)*h0FacC(i,j,k-1,bi,bj) |
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& *rA(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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dWtransU(i,j,bi,bj) = dWtransU(i,j,bi,bj) |
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& - rStarDhWDt(i,j,bi,bj)*drF(k-1)*h0FacW(i,j,k-1,bi,bj) |
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& *rAw(i,j,bi,bj) |
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dWtransV(i,j,bi,bj) = dWtransV(i,j,bi,bj) |
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& - rStarDhSDt(i,j,bi,bj)*drF(k-1)*h0FacS(i,j,k-1,bi,bj) |
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& *rAs(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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C- Modify rTransU & rTransV : |
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DO j=1-OLy+1,sNy+OLy |
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DO i=1-OLx+1,sNx+OLx |
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rTransU(i,j) = rTransU(i,j)-dWtransU(i,j,bi,bj) |
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& + (dWtransC(i-1,j,bi,bj)+dWtransC(i,j,bi,bj))*0.5 _d 0 |
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rTransV(i,j) = rTransV(i,j)-dWtransV(i,j,bi,bj) |
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& + (dWtransC(i,j-1,bi,bj)+dWtransC(i,j,bi,bj))*0.5 _d 0 |
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ENDDO |
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ENDDO |
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ENDIF |
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heimbach |
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# endif /* DISABLE_RSTAR_CODE */ |
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ENDIF |
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heimbach |
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#endif /* NONLIN_FRSURF */ |
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RETURN |
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END |
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