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C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_calc_hfacz.F,v 1.1 2004/05/14 17:43:11 adcroft Exp $ |
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C $Name: $ |
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|
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#include "MOM_COMMON_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: MOM_CALC_HFACZ |
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|
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C !INTERFACE: ========================================================== |
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SUBROUTINE MOM_CALC_HFACZ( |
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I bi,bj,k, |
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O hFacZ,r_hFacZ, |
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I myThid) |
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|
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C !DESCRIPTION: |
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C Calculates the fractional thickness at vorticity points |
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|
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "GRID.h" |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "EEPARAMS.h" |
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# include "tamc.h" |
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# include "tamc_keys.h" |
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#endif |
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|
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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C k :: vertical level |
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C myThid :: thread number |
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INTEGER bi,bj,k |
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INTEGER myThid |
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|
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C !OUTPUT PARAMETERS: ================================================== |
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C hFacZ :: fractional thickness at vorticity points |
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C r_hFacZ :: reciprocal |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS r_hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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|
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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INTEGER I,J |
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#ifdef ALLOW_DEPTH_CONTROL |
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_RL hFacZOpen(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL hFacZOpenI(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL hFacZOpenJ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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# ifdef USE_SMOOTH_MIN |
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_RS smoothMin_R4 |
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EXTERNAL smoothMin_R4 |
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# endif /* USE_SMOOTH_MIN */ |
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#else |
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_RL hFacZOpen |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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CEOP |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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act1 = bi - myBxLo(myThid) |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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act2 = bj - myByLo(myThid) |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
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act4 = ikey_dynamics - 1 |
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ikey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
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& + act4*max1*max2*max3 |
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kkey = (ikey-1)*Nr + k |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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C-- Calculate open water fraction at vorticity points |
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|
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#ifdef ALLOW_DEPTH_CONTROL |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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hFacZ(i,j) =0. |
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r_hFacZ(i,j) =0. |
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hFacZOpen(i,j) =0. |
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hFacZOpenJ(i,j)=0. |
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hFacZOpenJ(i,j)=0. |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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CADJ STORE hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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CADJ STORE r_hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO j=2-Oly,sNy+Oly |
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DO i=2-Olx,sNx+Olx |
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hFacZOpenJ(i,j)= |
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#ifdef USE_SMOOTH_MIN |
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& smoothMin_R4(_hFacW(i ,j ,k,bi,bj), |
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#else |
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& MIN(_hFacW(i ,j ,k,bi,bj), |
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#endif /* USE_SMOOTH_MIN */ |
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& _hFacW(i ,j-1,k,bi,bj)) |
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& *maskW(i,j,k,bi,bj)*maskW(i,j-1,k,bi,bj) |
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hFacZOpenI(i,j)= |
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#ifdef USE_SMOOTH_MIN |
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& smoothMin_R4(_hFacS(i ,j ,k,bi,bj), |
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#else |
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& MIN(_hFacS(i ,j ,k,bi,bj), |
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#endif /* USE_SMOOTH_MIN */ |
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& _hFacS(i-1,j ,k,bi,bj)) |
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& *maskS(i,j,k,bi,bj)*maskS(i-1,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE hFacZOpenI(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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CADJ STORE hFacZOpenJ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO j=2-Oly,sNy+Oly |
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DO i=2-Olx,sNx+Olx |
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hFacZ(i,j) = |
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#ifdef USE_SMOOTH_MIN |
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& smoothMin_R4(hFacZOpenI(i,j),hFacZOpenJ(i,j)) |
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#else |
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& MIN(hFacZOpenI(i,j),hFacZOpenJ(i,j)) |
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#endif /* USE_SMOOTH_MIN */ |
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& *maskW(i,j,k,bi,bj)*maskW(i,j-1,k,bi,bj) |
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& *maskS(i,j,k,bi,bj)*maskS(i-1,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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DO j=2-Oly,sNy+Oly |
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DO i=2-Olx,sNx+Olx |
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IF (hFacZ(i,j).EQ.0.) THEN |
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r_hFacZ(i,j)=0. |
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ELSE |
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r_hFacZ(i,j)=1./hFacZ(i,j) |
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ENDIF |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_AUTODIFF_TAMC |
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#ifdef ALLOW_DEPTH_CONTROL |
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CADJ STORE r_hFacZ(:,:) = comlev1_bibj_k , key=kkey, byte=isbyte |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
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|
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#else /* not ALLOW_DEPTH_CONTROL */ |
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|
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DO i=1-Olx,sNx+Olx |
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hFacZ(i,1-Oly)=0. |
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r_hFacZ(i,1-Oly)=0. |
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ENDDO |
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|
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DO j=2-Oly,sNy+Oly |
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hFacZ(1-Olx,j)=0. |
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r_hFacZ(1-Olx,j)=0. |
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DO i=2-Olx,sNx+Olx |
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hFacZOpen=min(_hFacW(i,j,k,bi,bj), |
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& _hFacW(i,j-1,k,bi,bj)) |
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hFacZOpen=min(_hFacS(i,j,k,bi,bj),hFacZOpen) |
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hFacZOpen=min(_hFacS(i-1,j,k,bi,bj),hFacZOpen) |
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hFacZ(i,j)=hFacZOpen |
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IF (hFacZ(i,j).EQ.0.) THEN |
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r_hFacZ(i,j)=0. |
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ELSE |
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r_hFacZ(i,j)=1./hFacZ(i,j) |
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ENDIF |
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ENDDO |
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ENDDO |
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#endif /* ALLOW_DEPTH_CONTROL */ |
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|
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RETURN |
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END |
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