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#include "GAD_OPTIONS.h" |
#include "GAD_OPTIONS.h" |
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SUBROUTINE GAD_DST3_ADV_Y( |
CBOP |
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C !ROUTINE: GAD_DST3_ADV_Y |
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C !INTERFACE: ========================================================== |
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SUBROUTINE GAD_DST3_ADV_Y( |
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I bi,bj,k,deltaTloc, |
I bi,bj,k,deltaTloc, |
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I vTrans, vVel, |
I vTrans, vFld, |
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I maskLocS, tracer, |
I maskLocS, tracer, |
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O vT, |
O vT, |
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I myThid ) |
I myThid ) |
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C /==========================================================\ |
C !DESCRIPTION: |
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C | SUBROUTINE GAD_DST3_ADV_Y | |
C Calculates the area integrated Meridional flux due to advection of a |
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C | o Compute Meridional advective Flux of Tracer using | |
C tracer using 3rd-order Direct Space and Time (DST-3) Advection Scheme |
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C | 3rd Order DST Sceheme | |
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C |==========================================================| |
C !USES: =============================================================== |
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IMPLICIT NONE |
IMPLICIT NONE |
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C == GLobal variables == |
C == GLobal variables == |
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#include "GAD.h" |
#include "GAD.h" |
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C == Routine arguments == |
C == Routine arguments == |
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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 deltaTloc :: local time-step (s) |
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C vTrans :: meridional volume transport |
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C vFld :: meridional flow |
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C tracer :: tracer field |
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C myThid :: thread number |
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INTEGER bi,bj,k |
INTEGER bi,bj,k |
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_RL deltaTloc |
_RL deltaTloc |
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_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vVel(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
_RL vFld (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS maskLocS(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RS maskLocS(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vT (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER myThid |
INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C vT :: meridional advective flux |
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_RL vT (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C == Local variables == |
C == Local variables == |
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C vFld :: velocity [m/s], meridional component |
C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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C vLoc :: velocity [m/s], meridional component |
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C vCFL :: Courant-Friedrich-Levy number |
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INTEGER i,j |
INTEGER i,j |
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_RL Rjm,Rj,Rjp,cfl,d0,d1 |
_RL Rjm,Rj,Rjp,vCFL,d0,d1 |
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_RL vLoc |
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#ifdef OLD_DST3_FORMULATION |
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_RL psiP,psiM,thetaP,thetaM |
_RL psiP,psiM,thetaP,thetaM |
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_RL vFld |
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_RL smallNo |
_RL smallNo |
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_RL Rjjm,Rjjp |
c _RL Rjjm,Rjjp |
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IF (inAdMode) THEN |
IF (inAdMode) THEN |
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smallNo = 1.0D-20 |
smallNo = 1.0D-20 |
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ELSE |
ELSE |
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smallNo = 1.0D-20 |
smallNo = 1.0D-20 |
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ENDIF |
ENDIF |
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#endif |
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DO i=1-Olx,sNx+Olx |
DO i=1-Olx,sNx+Olx |
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vT(i,1-Oly)=0. |
vT(i,1-Oly)=0. |
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Rj =(tracer(i, j )-tracer(i,j-1))*maskLocS(i, j ) |
Rj =(tracer(i, j )-tracer(i,j-1))*maskLocS(i, j ) |
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Rjm=(tracer(i,j-1)-tracer(i,j-2))*maskLocS(i,j-1) |
Rjm=(tracer(i,j-1)-tracer(i,j-2))*maskLocS(i,j-1) |
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c vFld = vVel(i,j,k,bi,bj) |
vLoc = vFld(i,j) |
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vFld = vTrans(i,j)*recip_dxG(i,j,bi,bj) |
vCFL = ABS( vLoc*deltaTloc |
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& *recip_drF(k)*recip_hFacS(i,j,k,bi,bj) |
& *recip_dyC(i,j,bi,bj)*recip_deepFacC(k) ) |
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cfl=abs(vFld*deltaTloc*recip_dyC(i,j,bi,bj)) |
d0=(2.-vCFL)*(1.-vCFL)*oneSixth |
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d0=(2.-cfl)*(1.-cfl)*oneSixth |
d1=(1.-vCFL*vCFL)*oneSixth |
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d1=(1.-cfl*cfl)*oneSixth |
#ifdef OLD_DST3_FORMULATION |
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IF ( ABS(Rj).LT.smallNo .OR. |
IF ( ABS(Rj).LT.smallNo .OR. |
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& ABS(Rjm).LT.smallNo ) THEN |
& ABS(Rjm).LT.smallNo ) THEN |
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thetaP=0. |
thetaP=0. |
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psiP=0. |
psiP=0. |
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ELSE |
ELSE |
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thetaP=(Rjm+smallNo)/(smallNo+Rj) |
thetaP=(Rjm+smallNo)/(smallNo+Rj) |
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psiP=d0+d1*thetaP |
psiP=d0+d1*thetaP |
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ENDIF |
ENDIF |
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psiM=d0+d1*thetaM |
psiM=d0+d1*thetaM |
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ENDIF |
ENDIF |
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vT(i,j)= |
vT(i,j)= |
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& 0.5*(vTrans(i,j)+abs(vTrans(i,j))) |
& 0.5*(vTrans(i,j)+ABS(vTrans(i,j))) |
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& *( Tracer(i,j-1) + psiP*Rj ) |
& *( Tracer(i,j-1) + psiP*Rj ) |
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& +0.5*(vTrans(i,j)-abs(vTrans(i,j))) |
& +0.5*(vTrans(i,j)-ABS(vTrans(i,j))) |
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& *( Tracer(i, j ) - psiM*Rj ) |
& *( Tracer(i, j ) - psiM*Rj ) |
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#else /* OLD_DST3_FORMULATION */ |
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vT(i,j)= |
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& 0.5*(vTrans(i,j)+ABS(vTrans(i,j))) |
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& *( Tracer(i,j-1) + (d0*Rj+d1*Rjm) ) |
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& +0.5*(vTrans(i,j)-ABS(vTrans(i,j))) |
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& *( Tracer(i, j ) - (d0*Rj+d1*Rjp) ) |
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#endif /* OLD_DST3_FORMULATION */ |
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ENDDO |
ENDDO |
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ENDDO |
ENDDO |