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C $Header: /u/gcmpack/MITgcm/model/src/update_sigma.F,v 1.1 2010/09/11 21:27:13 jmc Exp $ |
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C $Name: $ |
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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c#ifdef ALLOW_AUTODIFF |
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c# include "AUTODIFF_OPTIONS.h" |
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c#endif |
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CBOP |
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C !ROUTINE: UPDATE_SIGMA |
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C !INTERFACE: |
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SUBROUTINE UPDATE_SIGMA( etaHc, myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE UPDATE_SIGMA |
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C | o Update the thickness fractions (hFacC,W,S) |
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C | according to the surface r-position = Non-Linear FrSurf |
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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 "EEPARAMS.h" |
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#include "PARAMS.h" |
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c #include "DYNVARS.h" |
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#include "GRID.h" |
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#include "SURFACE.h" |
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c#ifdef ALLOW_AUTODIFF_TAMC |
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c# include "tamc.h" |
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c# include "tamc_keys.h" |
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c#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C etaHc :: surface r-anomaly at grid cell center |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number in simulation |
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C myThid :: my Thread Id. number |
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_RL etaHc(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef NONLIN_FRSURF |
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c#ifndef DISABLE_SIGMA_CODE |
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C !LOCAL VARIABLES: |
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C Local variables |
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C bi, bj :: tile indices |
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C i, j, k :: Loop counters |
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C rEmpty :: empty column r-position |
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C rFullDepth :: maximum depth of a full column |
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C tmpFld :: Temporary array used to compute & write Total Depth |
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C msgBuf :: Informational/error message buffer |
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INTEGER bi, bj |
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INTEGER i, j, k |
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_RL rFullDepth |
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_RL tmpFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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c _RL hFactmp |
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c CHARACTER*(MAX_LEN_MBUF) msgBuf |
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CEOP |
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rFullDepth = rF(1)-rF(Nr+1) |
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DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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c#ifdef ALLOW_AUTODIFF_TAMC |
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c act1 = bi - myBxLo(myThid) |
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c max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
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c act2 = bj - myByLo(myThid) |
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c max2 = myByHi(myThid) - myByLo(myThid) + 1 |
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c act3 = myThid - 1 |
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c max3 = nTx*nTy |
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c act4 = ikey_dynamics - 1 |
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c idynkey = (act1 + 1) + act2*max1 |
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c & + act3*max1*max2 |
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c & + act4*max1*max2*max3 |
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c#endif /* ALLOW_AUTODIFF_TAMC */ |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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c#ifdef ALLOW_OBCS |
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c# ifdef ALLOW_AUTODIFF_TAMC |
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cCADJ STORE rStarFacC(:,:,bi,bj) = |
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cCADJ & comlev1_bibj, key = idynkey, byte = isbyte |
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cCADJ STORE rStarFacS(:,:,bi,bj) = |
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cCADJ & comlev1_bibj, key = idynkey, byte = isbyte |
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cCADJ STORE rStarFacW(:,:,bi,bj) = |
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cCADJ & comlev1_bibj, key = idynkey, byte = isbyte |
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c# endif /* ALLOW_AUTODIFF_TAMC */ |
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cC-- Apply OBC to rStar_Factor_W,S before updating hFacW,S |
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c IF (useOBCS) THEN |
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c CALL OBCS_APPLY_R_STAR( |
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c I bi, bj, |
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c U rStarFacC, rStarFacW, rStarFacS, |
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c I myTime, myIter, myThid ) |
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c ENDIF |
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c#endif /* ALLOW_OBCS */ |
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C-- Update the fractional thickness hFacC (& "recip_hFac") : |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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IF ( kSurfC(i,j,bi,bj).LE.Nr ) THEN |
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tmpFld(i,j) = etaHc(i,j,bi,bj) |
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& + ( Ro_surf(i,j,bi,bj)-R_low(i,j,bi,bj) ) |
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ELSE |
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tmpFld(i,j) = rFullDepth |
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ENDIF |
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ENDDO |
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ENDDO |
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DO k=1,Nr |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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hFacC(i,j,k,bi,bj) = maskC(i,j,k,bi,bj) |
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& *( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& )*recip_drF(k) |
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recip_hFacC(i,j,k,bi,bj) = maskC(i,j,k,bi,bj)*drF(k) |
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& /( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& ) |
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ENDDO |
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ENDDO |
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ENDDO |
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C-- Update the fractional thickness hFacW (& "recip_hFac") : |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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IF ( kSurfW(i,j,bi,bj).LE.Nr ) THEN |
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tmpFld(i,j) = etaHw(i,j,bi,bj) |
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& + ( rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj) ) |
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ELSE |
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tmpFld(i,j) = rFullDepth |
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ENDIF |
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ENDDO |
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ENDDO |
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DO k=1,Nr |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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hFacW(i,j,k,bi,bj) = maskW(i,j,k,bi,bj) |
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& *( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& )*recip_drF(k) |
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recip_hFacW(i,j,k,bi,bj) = maskW(i,j,k,bi,bj)*drF(k) |
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& /( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& ) |
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ENDDO |
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ENDDO |
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ENDDO |
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C-- Update the fractional thickness hFacS (& "recip_hFac") : |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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IF ( kSurfS(i,j,bi,bj).LE.Nr ) THEN |
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tmpFld(i,j) = etaHs(i,j,bi,bj) |
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& + ( rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj) ) |
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ELSE |
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tmpFld(i,j) = rFullDepth |
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ENDIF |
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ENDDO |
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ENDDO |
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DO k=1,Nr |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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hFacS(i,j,k,bi,bj) = maskS(i,j,k,bi,bj) |
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& *( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& )*recip_drF(k) |
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recip_hFacS(i,j,k,bi,bj) = maskS(i,j,k,bi,bj)*drF(k) |
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& /( dAHybSigF(k)*rFullDepth |
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& +dBHybSigF(k)*tmpFld(i,j) |
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& ) |
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ENDDO |
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ENDDO |
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ENDDO |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C- end bi,bj loop |
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ENDDO |
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ENDDO |
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c _EXCH_XYZ_RS( hFacC, myThid ) |
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c _EXCH_XYZ_RS( recip_hFacC, myThid ) |
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c CALL EXCH_UV_XYZ_RS(hFacW,hFacS,.FALSE.,myThid) |
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c CALL EXCH_UV_XYZ_RS(recip_hFacW,recip_hFacS,.FALSE.,myThid) |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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c#endif /* ndef DISABLE_SIGMA_CODE */ |
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#endif /* NONLIN_FRSURF */ |
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RETURN |
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END |
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