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C /==========================================================\ |
C /==========================================================\ |
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C | S/R IMPLDIFF | |
C | S/R IMPLDIFF | |
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C | o Step model fields forward in time | |
C | o Solve implicit diffusion equation for vertical | |
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C | diffusivity. | |
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C \==========================================================/ |
C \==========================================================/ |
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SUBROUTINE IMPLDIFF( bi, bj, iMin, iMax, jMin, jMax, |
SUBROUTINE IMPLDIFF( bi, bj, iMin, iMax, jMin, jMax, |
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I KappaZT,KappaZS, |
I KappaRT,KappaRS, |
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I myThid ) |
I myThid ) |
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implicit none |
IMPLICIT NONE |
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! Common |
C == Global data == |
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#include "SIZE.h" |
#include "SIZE.h" |
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#include "DYNVARS.h" |
#include "DYNVARS.h" |
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#include "EEPARAMS.h" |
#include "EEPARAMS.h" |
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#include "PARAMS.h" |
#include "PARAMS.h" |
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#include "GRID.h" |
#include "GRID.h" |
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C == Routine Arguments == |
C == Routine Arguments == |
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INTEGER bi,bj,iMin,iMax,jMin,jMax |
INTEGER bi,bj,iMin,iMax,jMin,jMax |
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_RL KappaZT(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nz) |
_RL KappaRT(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nz) |
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_RL KappaZS(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nz) |
_RL KappaRS(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nz) |
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INTEGER myThid |
INTEGER myThid |
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C == Local variables == |
C == Local variables == |
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INTEGER i,j,k |
INTEGER i,j,k |
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_RL a(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
_RL a(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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C |
C |
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C The implicit diffusion of SALT currently uses the diffusivity |
C The implicit diffusion of SALT currently uses the diffusivity |
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C of the THETA. |
C of the THETA. |
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C ie. KappaZS is ignored. |
C ie. KappaRS is ignored. |
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C |
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C This is only a temporary situation. We appreciate your |
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C patience and understanding. |
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C |
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C Signed, The Management. |
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C |
C |
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C *************************************************************** |
C *************************************************************** |
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C *************************************************************** |
C *************************************************************** |
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IF (Nz.GT.1) THEN ! Only need do anything if Nz>1 |
IF (Nz.GT.1) THEN ! Only need do anything if Nz>1 |
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C Beginning of forward sweep (top level) |
C-- Beginning of forward sweep (top level) |
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DO j=jMin,jMax |
DO j=jMin,jMax |
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DO i=iMin,iMax |
DO i=iMin,iMax |
53 |
c(i,j)=-deltaTtracer*_rhFacC(i,j,1,bi,bj)*rdzF(1) |
c(i,j)=-deltaTtracer*_rhFacC(i,j,1,bi,bj)*recip_drF(1) |
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& *KappaZT(i,j,2)*rdzC(2) |
& *KappaRT(i,j,2)*recip_drC(2) |
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b(i,j)=1.-c(i,j) |
b(i,j)=1.-c(i,j) |
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bet(i,j)=0. |
bet(i,j)=0. |
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IF (b(i,j).NE.0.) bet(i,j)=1. / b(i,j) |
IF (b(i,j).NE.0.) bet(i,j)=1. / b(i,j) |
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ENDDO |
ENDDO |
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ENDDO |
ENDDO |
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ENDIF |
ENDIF |
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C Middle of forward sweep |
C-- Middle of forward sweep |
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IF (Nz.GT.2) THEN |
IF (Nz.GT.2) THEN |
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DO k=2,Nz-1 |
DO k=2,Nz-1 |
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DO j=jMin,jMax |
DO j=jMin,jMax |
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DO i=iMin,iMax |
DO i=iMin,iMax |
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ckm1(i,j)=c(i,j) |
ckm1(i,j)=c(i,j) |
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a(i,j)=-deltaTtracer*_rhFacC(i,j,k,bi,bj)*rdzF(k) |
a(i,j)=-deltaTtracer*_rhFacC(i,j,k,bi,bj)*recip_drF(k) |
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& *KappaZT(i,j, k )*rdzC( k ) |
& *KappaRT(i,j, k )*recip_drC( k ) |
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c(i,j)=-deltaTtracer*_rhFacC(i,j,k,bi,bj)*rdzF(k) |
c(i,j)=-deltaTtracer*_rhFacC(i,j,k,bi,bj)*recip_drF(k) |
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& *KappaZT(i,j,k+1)*rdzC(k+1) |
& *KappaRT(i,j,k+1)*recip_drC(k+1) |
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b(i,j)=1.-c(i,j)-a(i,j) |
b(i,j)=1.-c(i,j)-a(i,j) |
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ENDDO |
ENDDO |
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ENDDO |
ENDDO |
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ENDDO |
ENDDO |
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ENDIF |
ENDIF |
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IF (Nz.GT.1) THEN |
IF (Nz.GT.1) THEN |
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C End of forward sweep (bottom level) |
C-- End of forward sweep (bottom level) |
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DO j=jMin,jMax |
DO j=jMin,jMax |
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DO i=iMin,iMax |
DO i=iMin,iMax |
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ckm1(i,j)=c(i,j) |
ckm1(i,j)=c(i,j) |
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a(i,j)=-deltaTtracer*_rhFacC(i,j,Nz,bi,bj)*rdzF(Nz) |
a(i,j)=-deltaTtracer*_rhFacC(i,j,Nz,bi,bj)*recip_drF(Nz) |
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& *KappaZT(i,j, Nz )*rdzC( Nz ) |
& *KappaRT(i,j, Nz )*recip_drC( Nz ) |
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b(i,j)=1.-a(i,j) |
b(i,j)=1.-a(i,j) |
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ENDDO |
ENDDO |
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ENDDO |
ENDDO |
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& -a(i,j)*gSnm1(i,j,Nz-1,bi,bj))*bet(i,j) |
& -a(i,j)*gSnm1(i,j,Nz-1,bi,bj))*bet(i,j) |
108 |
ENDDO |
ENDDO |
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ENDDO |
ENDDO |
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C Backward sweep |
C-- Backward sweep |
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DO k=Nz-1,1,-1 |
DO k=Nz-1,1,-1 |
112 |
DO j=jMin,jMax |
DO j=jMin,jMax |
113 |
DO i=iMin,iMax |
DO i=iMin,iMax |