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C $Header: /u/gcmpack/models/MITgcmUV/pkg/obcs/obcs_init_fixed.F,v 1.3 2001/05/14 21:36:45 heimbach Exp $ |
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C $Name: $ |
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#include "OBCS_OPTIONS.h" |
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SUBROUTINE OBCS_INIT_FIXED( myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE OBCS_INIT_FIXED | |
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C | o Initialise OBCs fixed arrays | |
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C |==========================================================| |
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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 "OBCS.h" |
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#ifdef NONLIN_FRSURF |
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#include "GRID.h" |
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#include "SURFACE.h" |
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#endif |
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C == Routine arguments == |
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C myThid - Number of this instance of INI_DEPTHS |
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INTEGER myThid |
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#ifdef ALLOW_OBCS |
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C == Local variables == |
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INTEGER iG, jG, iGm, jGm |
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INTEGER bi, bj |
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INTEGER I, J, K |
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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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DO I=1-Olx,sNx+Olx |
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OB_Jn(I,bi,bj)=0 |
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OB_Js(I,bi,bj)=0 |
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ENDDO |
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|
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DO J=1-Oly,sNy+Oly |
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OB_Ie(J,bi,bj)=0 |
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OB_Iw(J,bi,bj)=0 |
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ENDDO |
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|
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DO J=1-Oly,sNy+Oly |
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C convert from local y index J to global y index jG |
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jG = myYGlobalLo-1+(bj-1)*sNy+J |
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C use periodicity to deal with out of range points caused by the overlaps. |
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C they will be excluded by the mask in any case, but this saves array |
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C out-of-bounds errors here. |
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jGm = 1+mod( jG-1+Ny , Ny ) |
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C loop over local x index I |
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DO I=1,sNx |
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iG = myXGlobalLo-1+(bi-1)*sNx+I |
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iGm = 1+mod( iG-1+Nx , Nx ) |
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C OB_Ieast(jGm) allows for the eastern boundary to be at variable x locations |
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IF (iG.EQ.OB_Ieast(jGm)) OB_Ie(J,bi,bj)=I |
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IF (iG.EQ.OB_Iwest(jGm)) OB_Iw(J,bi,bj)=I |
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ENDDO |
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ENDDO |
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DO J=1,sNy |
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jG = myYGlobalLo-1+(bj-1)*sNy+J |
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jGm = 1+mod( jG-1+Ny , Ny ) |
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DO I=1-Olx,sNx+Olx |
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iG = myXGlobalLo-1+(bi-1)*sNx+I |
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iGm = 1+mod( iG-1+Nx , Nx ) |
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C OB_Jnorth(iGm) allows for the northern boundary to be at variable y locations |
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IF (jG.EQ.OB_Jnorth(iGm)) OB_Jn(I,bi,bj)=J |
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IF (jG.EQ.OB_Jsouth(iGm)) OB_Js(I,bi,bj)=J |
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ENDDO |
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ENDDO |
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#ifdef NONLIN_FRSURF |
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C- save the initial hFacS at the N & S boundaries : |
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DO i=1-Olx,sNx+Olx |
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OBNhFac0(i,bi,bj)=0. |
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OBShFac0(i,bi,bj)=0. |
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C Northern boundary |
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IF ( OB_Jn(i,bi,bj).NE.0 ) THEN |
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j = OB_Jn(i,bi,bj) |
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k = ksurfS(i,j,bi,bj) |
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IF (k.LE.Nr) OBNhFac0(i,bi,bj)=hFacS(i,j,k,bi,bj) |
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ENDIF |
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C Southern boundary |
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IF ( OB_Js(i,bi,bj).NE.0 ) THEN |
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j = OB_Js(i,bi,bj)+1 |
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k = ksurfS(i,j,bi,bj) |
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IF (k.LE.Nr) OBShFac0(i,bi,bj)=hFacS(i,j,k,bi,bj) |
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ENDIF |
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ENDDO |
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|
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C- save the initial hFacW at the E & W boundaries : |
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DO j=1-Oly,sNy+Oly |
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OBEhFac0(j,bi,bj)=0. |
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OBWhFac0(j,bi,bj)=0. |
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C Eastern boundary |
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IF ( OB_Ie(j,bi,bj).NE.0 ) THEN |
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i = OB_Ie(j,bi,bj) |
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k = ksurfW(i,j,bi,bj) |
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IF (k.LE.Nr) OBEhFac0(j,bi,bj)=hFacW(i,j,k,bi,bj) |
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ENDIF |
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C Western boundary |
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IF ( OB_Iw(j,bi,bj).NE.0 ) THEN |
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i = OB_Iw(j,bi,bj)+1 |
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k = ksurfW(i,j,bi,bj) |
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IF (k.LE.Nr) OBWhFac0(j,bi,bj)=hFacW(i,j,k,bi,bj) |
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ENDIF |
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ENDDO |
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#endif /* NONLIN_FRSURF */ |
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ENDDO |
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ENDDO |
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#endif /* ALLOW_OBCS */ |
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RETURN |
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END |
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