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C $Header: /u/gcmpack/MITgcm_contrib/verification_other/shelfice_remeshing/code/ini_masks_etc.F,v 1.3 2017/04/10 23:55:33 jmc Exp $ |
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C $Name: $ |
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|
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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#ifdef ALLOW_SHELFICE |
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# include "SHELFICE_OPTIONS.h" |
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#endif /* ALLOW_SHELFICE */ |
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|
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CBOP |
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C !ROUTINE: INI_MASKS_ETC |
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C !INTERFACE: |
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SUBROUTINE INI_MASKS_ETC( myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE INI_MASKS_ETC |
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C | o Initialise masks and topography factors |
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C *==========================================================* |
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C | These arrays are used throughout the code and describe |
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C | the topography of the domain through masks (0s and 1s) |
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C | and fractional height factors (0<hFac<1). The latter |
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C | distinguish between the lopped-cell and full-step |
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C | topographic representations. |
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C *==========================================================* |
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C \ev |
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|
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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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#include "GRID.h" |
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#ifdef NONLIN_FRSURF |
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# include "SURFACE.h" |
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#endif /* NONLIN_FRSURF */ |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C myThid :: Number of this instance of INI_MASKS_ETC |
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INTEGER myThid |
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|
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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 tmpFld :: Temporary array used to compute & write Total Depth |
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_RS tmpFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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INTEGER bi, bj |
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INTEGER i, j, k |
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_RL hFacCtmp |
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_RL hFacMnSz |
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CEOP |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#ifdef ALLOW_SHELFICE |
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IF ( useShelfIce ) THEN |
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C-- Modify ocean upper boundary position according to ice-shelf topography |
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CALL SHELFICE_INIT_DEPTHS( |
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U R_low, Ro_surf, |
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I myThid ) |
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ENDIF |
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#endif /* ALLOW_SHELFICE */ |
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|
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IF ( selectSigmaCoord.EQ.0 ) THEN |
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C--- r-coordinate with partial-cell or full cell mask |
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|
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C-- Calculate lopping factor hFacC : over-estimate the part inside of the domain |
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C taking into account the lower_R Boundary (Bathymetrie / Top of Atmos) |
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DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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DO k=1, Nr |
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hFacMnSz = MAX( hFacMin, MIN(hFacMinDr*recip_drF(k),oneRL) ) |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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C o Non-dimensional distance between grid bound. and domain lower_R bound. |
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hFacCtmp = (rF(k)-R_low(i,j,bi,bj))*recip_drF(k) |
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C o Select between, closed, open or partial (0,1,0-1) |
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hFacCtmp = MIN( MAX( hFacCtmp, zeroRL ) , oneRL ) |
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C o Impose minimum fraction and/or size (dimensional) |
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IF ( hFacCtmp.LT.hFacMnSz ) THEN |
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IF ( hFacCtmp.LT.hFacMnSz*0.5 ) THEN |
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hFacC(i,j,k,bi,bj) = 0. |
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ELSE |
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hFacC(i,j,k,bi,bj) = hFacMnSz |
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ENDIF |
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ELSE |
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hFacC(i,j,k,bi,bj) = hFacCtmp |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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C- Re-calculate lower-R Boundary position, taking into account hFacC |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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R_low(i,j,bi,bj) = rF(1) |
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ENDDO |
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ENDDO |
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DO k=Nr,1,-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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R_low(i,j,bi,bj) = R_low(i,j,bi,bj) |
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& - drF(k)*hFacC(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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C- end bi,bj loops. |
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ENDDO |
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ENDDO |
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|
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C-- Calculate lopping factor hFacC : Remove part outside of the domain |
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C taking into account the Reference (=at rest) Surface Position Ro_surf |
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DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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DO k=1, Nr |
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hFacMnSz = MAX( hFacMin, MIN(hFacMinDr*recip_drF(k),oneRL) ) |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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C o Non-dimensional distance between grid boundary and model surface |
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hFacCtmp = (rF(k)-Ro_surf(i,j,bi,bj))*recip_drF(k) |
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C o Reduce the previous fraction : substract the outside part. |
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hFacCtmp = hFacC(i,j,k,bi,bj) - MAX( hFacCtmp, zeroRL ) |
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C o set to zero if empty Column : |
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hFacCtmp = MAX( hFacCtmp, zeroRL ) |
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C o Impose minimum fraction and/or size (dimensional) |
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IF ( hFacCtmp.LT.hFacMnSz ) THEN |
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IF ( hFacCtmp.LT.hFacMnSz*0.5 ) THEN |
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hFacC(i,j,k,bi,bj) = 0. |
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ELSE |
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hFacC(i,j,k,bi,bj) = hFacMnSz |
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ENDIF |
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ELSE |
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hFacC(i,j,k,bi,bj) = hFacCtmp |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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c#ifdef ALLOW_SHELFICE |
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c IF ( useShelfIce ) THEN |
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C-- Modify lopping factor hFacC : Remove part outside of the domain |
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C taking into account the Reference (=at rest) Surface Position Ro_shelfIce |
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c CALL SHELFICE_UPDATE_MASKS( |
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c I rF, recip_drF, |
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c U hFacC, |
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c I myThid ) |
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c ENDIF |
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c#endif /* ALLOW_SHELFICE */ |
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|
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C- Re-calculate Reference surface position, taking into account hFacC |
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C initialize Total column fluid thickness and surface k index |
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C Note: if no fluid (continent) ==> kSurf = 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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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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tmpFld(i,j,bi,bj) = 0. |
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kSurfC(i,j,bi,bj) = Nr+1 |
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Ro_surf(i,j,bi,bj) = R_low(i,j,bi,bj) |
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DO k=Nr,1,-1 |
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Ro_surf(i,j,bi,bj) = Ro_surf(i,j,bi,bj) |
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& + drF(k)*hFacC(i,j,k,bi,bj) |
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IF ( hFacC(i,j,k,bi,bj).NE.zeroRS ) THEN |
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kSurfC(i,j,bi,bj) = k |
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tmpFld(i,j,bi,bj) = tmpFld(i,j,bi,bj) + 1. |
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ENDIF |
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ENDDO |
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kLowC(i,j,bi,bj) = 0 |
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DO k= 1, Nr |
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IF ( hFacC(i,j,k,bi,bj).NE.zeroRS ) THEN |
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kLowC(i,j,bi,bj) = k |
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ENDIF |
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ENDDO |
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maskInC(i,j,bi,bj) = 0. |
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IF ( kSurfC(i,j,bi,bj).LE.Nr ) maskInC(i,j,bi,bj) = 1. |
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ENDDO |
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ENDDO |
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C- end bi,bj loops. |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_SHELFICE |
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#ifdef ALLOW_SHELFICE_REMESHING |
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IF ( useShelfIce ) THEN |
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C-- Modify lopping factor hFacC : Remove part outside of the domain |
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C taking into account the Reference (=at rest) Surface Position Ro_shelfIce |
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CALL SHELFICE_DIG_SHELF( myThid ) |
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ENDIF |
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#endif |
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#endif /* ALLOW_SHELFICE */ |
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|
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IF ( plotLevel.GE.debLevB ) THEN |
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c CALL PLOT_FIELD_XYRS( tmpFld, |
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c & 'Model Depths K Index' , -1, myThid ) |
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CALL PLOT_FIELD_XYRS(R_low, |
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& 'Model R_low (ini_masks_etc)', -1, myThid ) |
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CALL PLOT_FIELD_XYRS(Ro_surf, |
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& 'Model Ro_surf (ini_masks_etc)', -1, myThid ) |
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ENDIF |
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|
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C-- Calculate quantities derived from XY depth map |
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DO bj = myByLo(myThid), myByHi(myThid) |
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DO bi = myBxLo(myThid), myBxHi(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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C Total fluid column thickness (r_unit) : |
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tmpFld(i,j,bi,bj) = Ro_surf(i,j,bi,bj) - R_low(i,j,bi,bj) |
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C Inverse of fluid column thickness (1/r_unit) |
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IF ( tmpFld(i,j,bi,bj) .LE. zeroRS ) THEN |
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recip_Rcol(i,j,bi,bj) = 0. |
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ELSE |
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recip_Rcol(i,j,bi,bj) = 1. _d 0 / tmpFld(i,j,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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|
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C-- rLow & reference rSurf at Western & Southern edges (U and V points) |
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i = 1-OLx |
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DO j=1-OLy,sNy+OLy |
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rLowW (i,j,bi,bj) = rF(1) |
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rSurfW(i,j,bi,bj) = rF(1) |
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ENDDO |
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j = 1-OLy |
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DO i=1-OLx,sNx+OLx |
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rLowS (i,j,bi,bj) = rF(1) |
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rSurfS(i,j,bi,bj) = rF(1) |
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ENDDO |
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DO j=1-OLy,sNy+OLy |
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DO i=2-OLx,sNx+OLx |
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rLowW(i,j,bi,bj) = |
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& MAX( R_low(i-1,j,bi,bj), R_low(i,j,bi,bj) ) |
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rSurfW(i,j,bi,bj) = |
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& MIN( Ro_surf(i-1,j,bi,bj), Ro_surf(i,j,bi,bj) ) |
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rSurfW(i,j,bi,bj) = |
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& MAX( rSurfW(i,j,bi,bj), rLowW(i,j,bi,bj) ) |
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ENDDO |
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ENDDO |
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DO j=2-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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rLowS(i,j,bi,bj) = |
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& MAX( R_low(i,j-1,bi,bj), R_low(i,j,bi,bj) ) |
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rSurfS(i,j,bi,bj) = |
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& MIN( Ro_surf(i,j-1,bi,bj), Ro_surf(i,j,bi,bj) ) |
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rSurfS(i,j,bi,bj) = |
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& MAX( rSurfS(i,j,bi,bj), rLowS(i,j,bi,bj) ) |
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ENDDO |
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ENDDO |
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|
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C-- hFacW and hFacS (at U and V points) |
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DO k=1, Nr |
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DO j=1-OLy,sNy+OLy |
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hFacW(1-OLx,j,k,bi,bj) = 0. |
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DO i=2-OLx,sNx+OLx |
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hFacW(i,j,k,bi,bj) = |
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& MIN( hFacC(i,j,k,bi,bj), hFacC(i-1,j,k,bi,bj) ) |
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ENDDO |
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ENDDO |
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DO i=1-OLx,sNx+OLx |
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hFacS(i,1-OLy,k,bi,bj) = 0. |
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ENDDO |
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DO j=2-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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hFacS(i,j,k,bi,bj) = |
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& MIN( hFacC(i,j,k,bi,bj), hFacC(i,j-1,k,bi,bj) ) |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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IF ( useShelfIce ) THEN |
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C Adjust reference rSurf at U and V points in order to get consistent |
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C column thickness from Sum_k(hFac*drF) and rSurf-rLow |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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rSurfW(i,j,bi,bj) = rLowW(i,j,bi,bj) |
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rSurfS(i,j,bi,bj) = rLowS(i,j,bi,bj) |
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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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rSurfW(i,j,bi,bj) = rSurfW(i,j,bi,bj) |
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& + hFacW(i,j,k,bi,bj)*drF(k) |
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rSurfS(i,j,bi,bj) = rSurfS(i,j,bi,bj) |
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& + hFacS(i,j,k,bi,bj)*drF(k) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C- end bi,bj loops. |
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ENDDO |
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ENDDO |
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CALL EXCH_UV_XYZ_RS( hFacW, hFacS, .FALSE., myThid ) |
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CALL EXCH_UV_XY_RS( rSurfW, rSurfS, .FALSE., myThid ) |
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CALL EXCH_UV_XY_RS( rLowW, rLowS, .FALSE., myThid ) |
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|
| 306 |
C-- Addtional closing of Western and Southern grid-cell edges: for example, |
| 307 |
C a) might add some "thin walls" in specific location |
| 308 |
C-- b) close non-periodic N & S boundaries of lat-lon grid at the N/S poles. |
| 309 |
CALL ADD_WALLS2MASKS( myThid ) |
| 310 |
|
| 311 |
C-- Calculate surface k index for interface W & S (U & V points) |
| 312 |
DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
| 314 |
DO j=1-OLy,sNy+OLy |
| 315 |
DO i=1-OLx,sNx+OLx |
| 316 |
kSurfW(i,j,bi,bj) = Nr+1 |
| 317 |
kSurfS(i,j,bi,bj) = Nr+1 |
| 318 |
DO k=Nr,1,-1 |
| 319 |
IF (hFacW(i,j,k,bi,bj).NE.zeroRS) kSurfW(i,j,bi,bj) = k |
| 320 |
IF (hFacS(i,j,k,bi,bj).NE.zeroRS) kSurfS(i,j,bi,bj) = k |
| 321 |
ENDDO |
| 322 |
maskInW(i,j,bi,bj)= 0. |
| 323 |
IF ( kSurfW(i,j,bi,bj).LE.Nr ) maskInW(i,j,bi,bj)= 1. |
| 324 |
maskInS(i,j,bi,bj)= 0. |
| 325 |
IF ( kSurfS(i,j,bi,bj).LE.Nr ) maskInS(i,j,bi,bj)= 1. |
| 326 |
ENDDO |
| 327 |
ENDDO |
| 328 |
ENDDO |
| 329 |
ENDDO |
| 330 |
|
| 331 |
ELSE |
| 332 |
#ifndef DISABLE_SIGMA_CODE |
| 333 |
C--- Sigma and Hybrid-Sigma set-up: |
| 334 |
CALL INI_SIGMA_HFAC( myThid ) |
| 335 |
#endif /* DISABLE_SIGMA_CODE */ |
| 336 |
ENDIF |
| 337 |
|
| 338 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 339 |
|
| 340 |
C-- Write to disk: Total Column Thickness & hFac(C,W,S): |
| 341 |
C This I/O is now done in write_grid.F |
| 342 |
c CALL WRITE_FLD_XY_RS( 'Depth',' ',tmpFld,0,myThid) |
| 343 |
c CALL WRITE_FLD_XYZ_RS( 'hFacC',' ',hFacC,0,myThid) |
| 344 |
c CALL WRITE_FLD_XYZ_RS( 'hFacW',' ',hFacW,0,myThid) |
| 345 |
c CALL WRITE_FLD_XYZ_RS( 'hFacS',' ',hFacS,0,myThid) |
| 346 |
|
| 347 |
IF ( plotLevel.GE.debLevB ) THEN |
| 348 |
CALL PLOT_FIELD_XYZRS( hFacC, 'hFacC' , Nr, 0, myThid ) |
| 349 |
CALL PLOT_FIELD_XYZRS( hFacW, 'hFacW' , Nr, 0, myThid ) |
| 350 |
CALL PLOT_FIELD_XYZRS( hFacS, 'hFacS' , Nr, 0, myThid ) |
| 351 |
ENDIF |
| 352 |
|
| 353 |
C-- Masks and reciprocals of hFac[CWS] |
| 354 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 355 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 356 |
DO k=1,Nr |
| 357 |
DO j=1-OLy,sNy+OLy |
| 358 |
DO i=1-OLx,sNx+OLx |
| 359 |
IF ( hFacC(i,j,k,bi,bj).NE.zeroRS ) THEN |
| 360 |
recip_hFacC(i,j,k,bi,bj) = 1. _d 0 / hFacC(i,j,k,bi,bj) |
| 361 |
maskC(i,j,k,bi,bj) = 1. |
| 362 |
ELSE |
| 363 |
recip_hFacC(i,j,k,bi,bj) = 0. |
| 364 |
maskC(i,j,k,bi,bj) = 0. |
| 365 |
ENDIF |
| 366 |
IF ( hFacW(i,j,k,bi,bj).NE.zeroRS ) THEN |
| 367 |
recip_hFacW(i,j,k,bi,bj) = 1. _d 0 / hFacW(i,j,k,bi,bj) |
| 368 |
maskW(i,j,k,bi,bj) = 1. |
| 369 |
ELSE |
| 370 |
recip_hFacW(i,j,k,bi,bj) = 0. |
| 371 |
maskW(i,j,k,bi,bj) = 0. |
| 372 |
ENDIF |
| 373 |
IF ( hFacS(i,j,k,bi,bj).NE.zeroRS ) THEN |
| 374 |
recip_hFacS(i,j,k,bi,bj) = 1. _d 0 / hFacS(i,j,k,bi,bj) |
| 375 |
maskS(i,j,k,bi,bj) = 1. |
| 376 |
ELSE |
| 377 |
recip_hFacS(i,j,k,bi,bj) = 0. |
| 378 |
maskS(i,j,k,bi,bj) = 0. |
| 379 |
ENDIF |
| 380 |
ENDDO |
| 381 |
ENDDO |
| 382 |
ENDDO |
| 383 |
#ifdef NONLIN_FRSURF |
| 384 |
C-- Save initial geometrical hFac factor into h0Fac (fixed in time): |
| 385 |
C Note: In case 1 pkg modifies hFac (from packages_init_fixed, called |
| 386 |
C later in sequence of calls) this pkg would need also to update h0Fac. |
| 387 |
DO k=1,Nr |
| 388 |
DO j=1-OLy,sNy+OLy |
| 389 |
DO i=1-OLx,sNx+OLx |
| 390 |
h0FacC(i,j,k,bi,bj) = _hFacC(i,j,k,bi,bj) |
| 391 |
h0FacW(i,j,k,bi,bj) = _hFacW(i,j,k,bi,bj) |
| 392 |
h0FacS(i,j,k,bi,bj) = _hFacS(i,j,k,bi,bj) |
| 393 |
ENDDO |
| 394 |
ENDDO |
| 395 |
ENDDO |
| 396 |
#endif /* NONLIN_FRSURF */ |
| 397 |
C- end bi,bj loops. |
| 398 |
ENDDO |
| 399 |
ENDDO |
| 400 |
|
| 401 |
c #ifdef ALLOW_NONHYDROSTATIC |
| 402 |
C-- Calculate "recip_hFacU" = reciprocal hfac distance/volume for W cells |
| 403 |
C NOTE: not used ; computed locally in CALC_GW |
| 404 |
c #endif |
| 405 |
|
| 406 |
RETURN |
| 407 |
END |
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