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C $Header: /u/gcmpack/MITgcm/pkg/mom_vecinv/mom_vi_coriolis.F,v 1.5 2004/06/02 13:23:55 adcroft Exp $ |
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C $Name: $ |
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|
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#include "MOM_VECINV_OPTIONS.h" |
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|
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SUBROUTINE MOM_VI_CORIOLIS( |
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I bi,bj,K, |
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I uFld,vFld,hFacZ,r_hFacZ, |
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O uCoriolisTerm,vCoriolisTerm, |
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I myThid) |
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IMPLICIT NONE |
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C *==========================================================* |
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C | S/R MOM_VI_CORIOLIS |
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C *==========================================================* |
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C *==========================================================* |
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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 "GRID.h" |
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#include "PARAMS.h" |
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|
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C == Routine arguments == |
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INTEGER bi,bj,K |
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_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS r_hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uCoriolisTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vCoriolisTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER myThid |
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|
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C == Local variables == |
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INTEGER I,J |
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_RL vBarXY,uBarXY,vort3u,vort3v |
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_RS epsil |
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epsil = 1. _d -9 |
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|
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IF (useJamartWetPoints) THEN |
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C- Partial-cell generalization of the Wet-point average method : |
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DO J=1-Oly,sNy+Oly-1 |
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DO I=2-Olx,sNx+Olx |
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vBarXY=( |
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& vFld( i , j )*dxG( i , j ,bi,bj)*hFacS( i , j ,k,bi,bj) |
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& +vFld( i ,j+1)*dxG( i ,j+1,bi,bj)*hFacS( i ,j+1,k,bi,bj) |
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& +vFld(i-1, j )*dxG(i-1, j ,bi,bj)*hFacS(i-1, j ,k,bi,bj) |
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& +vFld(i-1,j+1)*dxG(i-1,j+1,bi,bj)*hFacS(i-1,j+1,k,bi,bj) ) |
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& / MAX( epsil, hFacS( i , j ,k,bi,bj)+hFacS(i-1, j ,k,bi,bj) |
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& +hFacS( i ,j+1,k,bi,bj)+hFacS(i-1,j+1,k,bi,bj) ) |
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uCoriolisTerm(i,j)= |
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& +0.5*( fCoriG(i,j,bi,bj)+fCoriG(i,j+1,bi,bj) |
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& )*vBarXY*recip_dxC(i,j,bi,bj)*_maskW(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- Simple average, no hFac : |
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DO J=1-Oly,sNy+Oly-1 |
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DO I=2-Olx,sNx+Olx |
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vBarXY=0.25*( |
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& vFld( i , j )*dxG( i , j ,bi,bj) |
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& +vFld( i ,j+1)*dxG( i ,j+1,bi,bj) |
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& +vFld(i-1, j )*dxG(i-1, j ,bi,bj) |
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& +vFld(i-1,j+1)*dxG(i-1,j+1,bi,bj) ) |
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uCoriolisTerm(i,j)= |
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& +0.5*( fCoriG(i,j,bi,bj)+fCoriG(i,j+1,bi,bj) |
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& )*vBarXY*recip_dxC(i,j,bi,bj)*_maskW(I,J,K,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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IF (useJamartWetPoints) THEN |
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C- Partial-cell generalization of the Wet-point average method : |
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DO J=2-Oly,sNy+Oly |
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DO I=1-Olx,sNx+Olx-1 |
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uBarXY=( |
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& uFld( i , j )*dyG( i , j ,bi,bj)*hFacW( i , j ,k,bi,bj) |
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& +uFld( i ,j-1)*dyG( i ,j-1,bi,bj)*hFacW( i ,j-1,k,bi,bj) |
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& +uFld(i+1, j )*dyG(i+1, j ,bi,bj)*hFacW(i+1, j ,k,bi,bj) |
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& +uFld(i+1,j-1)*dyG(i+1,j-1,bi,bj)*hFacW(i+1,j-1,k,bi,bj) ) |
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& / MAX( epsil, hFacW( i , j ,k,bi,bj)+hFacW( i ,j-1,k,bi,bj) |
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& +hFacW(i+1, j ,k,bi,bj)+hFacW(i+1,j-1,k,bi,bj) ) |
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vCoriolisTerm(i,j)= |
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& -0.5*( fCoriG(i,j,bi,bj)+fCoriG(i+1,j,bi,bj) |
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& )*uBarXY*recip_dyC(i,j,bi,bj)*_maskS(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- Simple average, no hFac : |
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DO J=2-Oly,sNy+Oly |
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DO I=1-Olx,sNx+Olx-1 |
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uBarXY=0.25*( |
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& uFld( i , j )*dyG( i , j ,bi,bj) |
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& +uFld( i ,j-1)*dyG( i ,j-1,bi,bj) |
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& +uFld(i+1, j )*dyG(i+1, j ,bi,bj) |
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& +uFld(i+1,j-1)*dyG(i+1,j-1,bi,bj) ) |
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vCoriolisTerm(i,j)= |
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& -0.5*( fCoriG(i,j,bi,bj)+fCoriG(i+1,j,bi,bj) |
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& )*uBarXY*recip_dyC(i,j,bi,bj)*_maskS(I,J,K,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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RETURN |
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END |
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