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C $Header: /u/gcmpack/models/MITgcmUV/pkg/generic_advdiff/gad_calc_rhs.F,v 1.2 2001/07/12 00:26:30 jmc Exp $ |
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C $Name: $ |
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|
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#include "GAD_OPTIONS.h" |
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|
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SUBROUTINE GAD_CALC_RHS( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
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I xA,yA,uTrans,vTrans,rTrans,maskUp, |
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I diffKh, diffK4, KappaRT, Tracer, |
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I tracerIdentity, advectionScheme, |
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U fVerT, gTracer, |
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I myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE GAD_CALC_RHS | |
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C |==========================================================| |
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C \==========================================================/ |
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IMPLICIT NONE |
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|
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C == GLobal variables == |
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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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#include "DYNVARS.h" |
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#include "GAD.h" |
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|
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C == Routine arguments == |
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INTEGER k,kUp,kDown,kM1 |
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INTEGER bi,bj,iMin,iMax,jMin,jMax |
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_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS maskUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL diffKh, diffK4 |
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_RL KappaRT(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL Tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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INTEGER tracerIdentity |
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INTEGER advectionScheme |
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_RL fVerT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RL gTracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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INTEGER myThid |
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|
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C == Local variables == |
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C I, J, K - Loop counters |
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INTEGER i,j |
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LOGICAL TOP_LAYER |
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_RL afFacT, dfFacT |
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_RL df4 (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fZon (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL fMer (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL af (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL localT(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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|
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#ifdef ALLOW_AUTODIFF_TAMC |
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C-- only the kUp part of fverT is set in this subroutine |
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C-- the kDown is still required |
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fVerT(1,1,kDown) = fVerT(1,1,kDown) |
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#endif |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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fZon(i,j) = 0.0 |
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fMer(i,j) = 0.0 |
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fVerT(i,j,kUp) = 0.0 |
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ENDDO |
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ENDDO |
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|
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afFacT = 1. _d 0 |
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dfFacT = 1. _d 0 |
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TOP_LAYER = K .EQ. 1 |
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|
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C-- Make local copy of tracer array |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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localT(i,j)=tracer(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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|
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C-- Pre-calculate del^2 T if bi-harmonic coefficient is non-zero |
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IF (diffK4 .NE. 0.) THEN |
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CALL GAD_GRAD_X(bi,bj,k,xA,localT,fZon,myThid) |
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CALL GAD_GRAD_Y(bi,bj,k,yA,localT,fMer,myThid) |
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CALL GAD_DEL2(bi,bj,k,fZon,fMer,df4,myThid) |
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ENDIF |
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|
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C-- Initialize net flux in X direction |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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fZon(i,j) = 0. |
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ENDDO |
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ENDDO |
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|
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C- Advective flux in X |
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IF (advectionScheme.EQ.ENUM_CENTERED_2ND) THEN |
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CALL GAD_C2_ADV_X(bi,bj,k,uTrans,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_FLUX_LIMIT) THEN |
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CALL GAD_FLUXLIMIT_ADV_X( |
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& bi,bj,k,deltaTtracer,uTrans,uVel,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_UPWIND_3RD ) THEN |
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CALL GAD_U3_ADV_X(bi,bj,k,uTrans,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_CENTERED_4TH) THEN |
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CALL GAD_C4_ADV_X(bi,bj,k,uTrans,localT,af,myThid) |
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ELSE |
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STOP 'GAD_CALC_RHS: Bad advectionScheme (X)' |
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ENDIF |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fZon(i,j) = fZon(i,j) + af(i,j) |
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ENDDO |
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ENDDO |
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|
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C- Diffusive flux in X |
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IF (diffKh.NE.0.) THEN |
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CALL GAD_DIFF_X(bi,bj,k,xA,diffKh,localT,df,myThid) |
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ELSE |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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df(i,j) = 0. |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#ifdef ALLOW_GMREDI |
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C- GM/Redi flux in X |
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IF (useGMRedi) THEN |
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C *note* should update GMREDI_XTRANSPORT to use localT and set df *aja* |
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CALL GMREDI_XTRANSPORT( |
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I iMin,iMax,jMin,jMax,bi,bj,K, |
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I xA,Tracer, |
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U df, |
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I myThid) |
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ENDIF |
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#endif |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fZon(i,j) = fZon(i,j) + df(i,j) |
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ENDDO |
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ENDDO |
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|
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C- Bi-harmonic duffusive flux in X |
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IF (diffK4 .NE. 0.) THEN |
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CALL GAD_BIHARM_X(bi,bj,k,xA,df4,diffK4,df,myThid) |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fZon(i,j) = fZon(i,j) + df(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C-- Initialize net flux in Y direction |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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fMer(i,j) = 0. |
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ENDDO |
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ENDDO |
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|
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C- Advective flux in Y |
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IF (advectionScheme.EQ.ENUM_CENTERED_2ND) THEN |
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CALL GAD_C2_ADV_Y(bi,bj,k,vTrans,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_FLUX_LIMIT) THEN |
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CALL GAD_FLUXLIMIT_ADV_Y( |
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& bi,bj,k,deltaTtracer,vTrans,vVel,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_UPWIND_3RD ) THEN |
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CALL GAD_U3_ADV_Y(bi,bj,k,vTrans,localT,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_CENTERED_4TH) THEN |
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CALL GAD_C4_ADV_Y(bi,bj,k,vTrans,localT,af,myThid) |
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ELSE |
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STOP 'GAD_CALC_RHS: Bad advectionScheme (Y)' |
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ENDIF |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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fMer(i,j) = fMer(i,j) + af(i,j) |
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ENDDO |
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ENDDO |
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|
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C- Diffusive flux in Y |
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IF (diffKh.NE.0.) THEN |
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CALL GAD_DIFF_Y(bi,bj,k,yA,diffKh,localT,df,myThid) |
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ELSE |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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df(i,j) = 0. |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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#ifdef ALLOW_GMREDI |
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C- GM/Redi flux in Y |
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IF (useGMRedi) THEN |
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CALL GMREDI_YTRANSPORT( |
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C *note* should update GMREDI_YTRANSPORT to use localT and set df *aja* |
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I iMin,iMax,jMin,jMax,bi,bj,K, |
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I yA,Tracer, |
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U df, |
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I myThid) |
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ENDIF |
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#endif |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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fMer(i,j) = fMer(i,j) + df(i,j) |
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ENDDO |
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ENDDO |
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|
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C- Bi-harmonic flux in Y |
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IF (diffK4 .NE. 0.) THEN |
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CALL GAD_BIHARM_Y(bi,bj,k,yA,df4,diffK4,df,myThid) |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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fMer(i,j) = fMer(i,j) + df(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C-- Initialize net flux in R |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fVerT(i,j,kUp) = 0. |
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ENDDO |
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ENDDO |
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|
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C- Advective flux in R |
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C Note: wVel needs to be masked |
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IF (K.GE.2) THEN |
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C- Compute vertical advective flux in the interior: |
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IF (advectionScheme.EQ.ENUM_CENTERED_2ND) THEN |
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CALL GAD_C2_ADV_R(bi,bj,k,rTrans,tracer,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_FLUX_LIMIT) THEN |
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CALL GAD_FLUXLIMIT_ADV_R( |
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& bi,bj,k,deltaTtracer,rTrans,wVel,tracer,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_UPWIND_3RD ) THEN |
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CALL GAD_U3_ADV_R(bi,bj,k,rTrans,tracer,af,myThid) |
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ELSEIF (advectionScheme.EQ.ENUM_CENTERED_4TH) THEN |
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CALL GAD_C4_ADV_R(bi,bj,k,rTrans,tracer,af,myThid) |
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c CALL GAD_C2_ADV_R(bi,bj,k,rTrans,tracer,af,myThid) |
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ELSE |
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STOP 'GAD_CALC_RHS: Bad advectionScheme (R)' |
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ENDIF |
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C- Surface "correction" term at 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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af(i,j) = af(i,j) |
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& + (maskC(i,j,k,bi,bj)-maskC(i,j,k-1,bi,bj))* |
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& rTrans(i,j)*Tracer(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ELSE |
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C- Surface "correction" term at 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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af(i,j) = rTrans(i,j)*Tracer(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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C- add the advective flux to fVerT |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fVerT(i,j,kUp) = fVerT(i,j,kUp) + afFacT*af(i,j) |
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ENDDO |
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ENDDO |
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|
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C- Diffusive flux in R |
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C Note: For K=1 then KM1=1 and this gives a dT/dr = 0 upper |
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C boundary condition. |
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IF (implicitDiffusion) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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df(i,j) = 0. |
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ENDDO |
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ENDDO |
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ELSE |
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CALL GAD_DIFF_R(bi,bj,k,KappaRT,tracer,df,myThid) |
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ENDIF |
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c DO j=jMin,jMax |
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c DO i=iMin,iMax |
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c fVerT(i,j,kUp) = fVerT(i,j,kUp) + dfFacT*df(i,j)*maskUp(i,j) |
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c ENDDO |
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c ENDDO |
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|
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#ifdef ALLOW_GMREDI |
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C- GM/Redi flux in R |
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IF (useGMRedi) THEN |
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C *note* should update GMREDI_RTRANSPORT to set df *aja* |
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CALL GMREDI_RTRANSPORT( |
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I iMin,iMax,jMin,jMax,bi,bj,K, |
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I maskUp,Tracer, |
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U df, |
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I myThid) |
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c DO j=jMin,jMax |
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c DO i=iMin,iMax |
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c fVerT(i,j,kUp) = fVerT(i,j,kUp) + dfFacT*df(i,j)*maskUp(i,j) |
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c ENDDO |
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c ENDDO |
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ENDIF |
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#endif |
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|
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fVerT(i,j,kUp) = fVerT(i,j,kUp) + dfFacT*df(i,j)*maskUp(i,j) |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_KPP |
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C- Add non local KPP transport term (ghat) to diffusive T flux. |
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IF (useKPP) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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df(i,j) = 0. |
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ENDDO |
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ENDDO |
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IF (tracerIdentity.EQ.GAD_TEMPERATURE) THEN |
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C *note* should update KPP_TRANSPORT_T to set df *aja* |
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CALL KPP_TRANSPORT_T( |
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I iMin,iMax,jMin,jMax,bi,bj,k,km1, |
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I KappaRT, |
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U df ) |
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ELSEIF (tracerIdentity.EQ.GAD_SALINITY) THEN |
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CALL KPP_TRANSPORT_S( |
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I iMin,iMax,jMin,jMax,bi,bj,k,km1, |
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I KappaRT, |
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U df ) |
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ELSE |
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STOP 'GAD_CALC_RHS: Ooops' |
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ENDIF |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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fVerT(i,j,kUp) = fVerT(i,j,kUp) + dfFacT*df(i,j)*maskUp(i,j) |
| 330 |
ENDDO |
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ENDDO |
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ENDIF |
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#endif |
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|
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C-- Divergence of fluxes |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gTracer(i,j,k,bi,bj)= |
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& -_recip_hFacC(i,j,k,bi,bj)*recip_drF(k) |
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& *recip_rA(i,j,bi,bj) |
| 341 |
& *( |
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& +( fZon(i+1,j)-fZon(i,j) ) |
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& +( fMer(i,j+1)-fMer(i,j) ) |
| 344 |
& +( fVerT(i,j,kUp)-fVerT(i,j,kDown) )*rkFac |
| 345 |
& ) |
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ENDDO |
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ENDDO |
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|
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RETURN |
| 350 |
END |
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