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C $Header: /u/gcmpack/MITgcm/model/src/correction_step.F,v 1.24 2006/12/05 05:25:08 jmc Exp $ |
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C $Name: $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: CORRECTION_STEP |
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C !INTERFACE: |
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SUBROUTINE CORRECTION_STEP( bi, bj, iMin, iMax, jMin, jMax, |
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I k, phiSurfX, phiSurfY, |
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I myTime, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | S/R CORRECTION_STEP |
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C | o Corrects the horizontal flow fields with the surface |
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C | pressure (and Non-Hydrostatic pressure). |
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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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#include "DYNVARS.h" |
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#ifdef ALLOW_NONHYDROSTATIC |
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#include "NH_VARS.h" |
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#endif |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine Arguments == |
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C bi, bj :: Tile indices |
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C iMin,iMax,jMin,jMax :: Loop counters range |
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C k :: Level index |
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C phiSurfX, phiSurfY :: Surface Potential gradient |
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C myTime :: Current time in simulation |
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C myThid :: my Thread Id number |
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_RL phiSurfX(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL phiSurfY(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER bi,bj |
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INTEGER iMin,iMax,jMin,jMax |
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INTEGER k |
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_RL myTime |
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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 i,j :: Loop counters |
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C psFac, nhFac :: Scaling parameters for supressing gradients |
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INTEGER i,j |
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_RL psFac, nhFac |
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CEOP |
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|
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C On/off scaling parameters (including anelastic & deep-model factors) |
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psFac = pfFacMom*implicSurfPress |
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& *recip_deepFacC(k)*recip_rhoFacC(k) |
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IF ( use3Dsolver ) THEN |
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nhFac = pfFacMom*implicitNHPress |
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& *recip_deepFacC(k)*recip_rhoFacC(k) |
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ELSE |
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nhFac = 0. |
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ENDIF |
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|
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C Step forward zonal velocity |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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uVel(i,j,k,bi,bj)=( gU(i,j,k,bi,bj) |
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& -deltaTmom*psFac*phiSurfX(i,j) |
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#ifdef ALLOW_NONHYDROSTATIC |
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& -deltaTmom*nhFac*_recip_dxC(i,j,bi,bj) |
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& *(phi_nh(i,j,k,bi,bj)-phi_nh(i-1,j,k,bi,bj)) |
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#endif |
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& )*_maskW(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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C Step forward meridional velocity |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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vVel(i,j,k,bi,bj)=( gV(i,j,k,bi,bj) |
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& -deltaTmom*psFac*phiSurfY(i,j) |
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#ifdef ALLOW_NONHYDROSTATIC |
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& -deltaTmom*nhFac*_recip_dyC(i,j,bi,bj) |
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& *(phi_nh(i,j,k,bi,bj)-phi_nh(i,j-1,k,bi,bj)) |
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#endif |
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& )*_maskS(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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