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C $Header: /u/gcmpack/MITgcm/pkg/obcs/obcs_apply_r_star.F,v 1.5 2011/05/20 01:09:07 jmc Exp $ |
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C $Name: $ |
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|
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#include "OBCS_OPTIONS.h" |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP |
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C !ROUTINE: OBCS_APPLY_R_STAR |
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|
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C !INTERFACE: |
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SUBROUTINE OBCS_APPLY_R_STAR( |
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I bi, bj, etaFld, |
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U rStarFldC, rStarFldW, rStarFldS, |
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I myTime, myIter, myThid ) |
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|
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C !DESCRIPTION: |
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C *==========================================================* |
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C | S/R OBCS_APPLY_R_STAR |
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C *==========================================================* |
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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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#include "OBCS_GRID.h" |
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#include "OBCS_FIELDS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C bi, bj :: tile indices |
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C etaFld :: current eta field used to update the hFactor |
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C rStarFldC :: r* thickness-factor (grid-cell center) |
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C hFac_FldW :: r* thickness-factor (grid-cell Western -Edge) |
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C hFac_FldS :: r* thickness-factor (grid-cell Southern-Edge) |
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C myTime :: current time in simlation |
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C myIter :: current time-step number |
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C myThid :: my Thread Id number |
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INTEGER bi, bj |
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_RL etaFld (1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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_RL rStarFldC(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL rStarFldW(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL rStarFldS(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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_RL myTime |
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INTEGER myIter, myThid |
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CEOP |
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|
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#ifdef NONLIN_FRSURF |
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#ifndef DISABLE_RSTAR_CODE |
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|
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C !LOCAL VARIABLES: |
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INTEGER i,j |
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LOGICAL useOBeta |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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C-- Eta OB values corresponding to previous iteration are not available when |
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C calc_r_star is called for the 1rst time (myIter=-1) form initialise_varia. |
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C Use current "etaFld" values instead, only for this 1rst call (myIter=-1). |
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useOBeta = myIter.NE.-1 |
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|
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C- Set model rStar_Factor to OB values on North/South Boundaries |
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IF ( tileHasOBN(bi,bj) ) THEN |
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C Northern boundary |
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DO i=1-Olx,sNx+Olx |
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j = OB_Jn(i,bi,bj) |
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IF (j.NE.0) THEN |
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IF (kSurfS(i,j,bi,bj).LE.Nr) THEN |
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IF ( useOBeta ) THEN |
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rStarFldS(i,j,bi,bj) = 1. _d 0 |
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& + OBNeta( j,bi,bj) / (rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj)) |
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ELSE |
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rStarFldS(i,j,bi,bj) = 1. _d 0 |
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& + etaFld(i,j,bi,bj) / (rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj)) |
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ENDIF |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDIF |
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IF ( tileHasOBS(bi,bj) ) THEN |
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C Southern boundary |
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DO i=1-Olx,sNx+Olx |
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j = 1+OB_Js(i,bi,bj) |
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IF (j.NE.1) THEN |
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IF (kSurfS(i,j,bi,bj).LE.Nr) THEN |
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IF ( useOBeta ) THEN |
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rStarFldS(i,j,bi,bj) = 1. _d 0 |
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& + OBSeta( j,bi,bj) / (rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj)) |
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ELSE |
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rStarFldS(i,j,bi,bj) = 1. _d 0 |
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& + etaFld(i,j-1,bi,bj)/(rSurfS(i,j,bi,bj)-rLowS(i,j,bi,bj)) |
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ENDIF |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDIF |
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|
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C- Set model rStar_Factor to OB values on East/West Boundaries |
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IF ( tileHasOBE(bi,bj) ) THEN |
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C Eastern boundary |
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DO j=1-Oly,sNy+Oly |
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i = OB_Ie(j,bi,bj) |
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IF (i.NE.0) THEN |
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IF (kSurfW(i,j,bi,bj).LE.Nr) THEN |
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IF ( useOBeta ) THEN |
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rStarFldW(i,j,bi,bj) = 1. _d 0 |
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& + OBEeta( j,bi,bj) / (rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj)) |
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ELSE |
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rStarFldW(i,j,bi,bj) = 1. _d 0 |
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& + etaFld(i,j,bi,bj) / (rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj)) |
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ENDIF |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDIF |
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IF ( tileHasOBW(bi,bj) ) THEN |
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C Western boundary |
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DO j=1-Oly,sNy+Oly |
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i = 1+OB_Iw(j,bi,bj) |
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IF (i.NE.1) THEN |
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IF (kSurfW(i,j,bi,bj).LE.Nr) THEN |
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IF ( useOBeta ) THEN |
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rStarFldW(i,j,bi,bj) = 1. _d 0 |
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& + OBWeta( j,bi,bj) / (rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj)) |
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ELSE |
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rStarFldW(i,j,bi,bj) = 1. _d 0 |
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& + etaFld(i-1,j,bi,bj)/(rSurfW(i,j,bi,bj)-rLowW(i,j,bi,bj)) |
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ENDIF |
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ENDIF |
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ENDIF |
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ENDDO |
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ENDIF |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#endif /* DISABLE_RSTAR_CODE */ |
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#endif /* NONLIN_FRSURF */ |
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|
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RETURN |
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END |
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