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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_u_rviscflux.F,v 1.3 2005/07/30 22:02:14 jmc Exp $ |
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jmc |
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C $Name: $ |
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adcroft |
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#include "MOM_COMMON_OPTIONS.h" |
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CBOP |
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C !ROUTINE: MOM_U_RVISCFLUX |
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C !INTERFACE: ========================================================== |
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SUBROUTINE MOM_U_RVISCFLUX( |
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I bi,bj,k, |
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I uFld, KappaRU, |
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O rViscFluxU, |
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I myThid) |
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C !DESCRIPTION: |
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jmc |
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C Calculates the area integrated vertical viscous fluxes of U |
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C at vertical interface k (between level k & k-1): |
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adcroft |
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C \begin{equation*} |
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jmc |
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C F^r = - \frac{ {\cal A}_w }{\Delta r_c} A_r \delta_k u |
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adcroft |
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C \end{equation*} |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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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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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C k :: vertical level |
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C uFld :: zonal flow |
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C KappaRU :: vertical viscosity |
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C myThid :: thread number |
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INTEGER bi,bj,k |
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_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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_RL KappaRU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C rViscFluxU :: viscous fluxes |
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_RL rViscFluxU(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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jmc |
1.3 |
INTEGER i,j |
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adcroft |
1.1 |
CEOP |
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jmc |
1.3 |
C - Vertical viscous flux |
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IF ( k.LE.1 .OR. k.GT.Nr ) THEN |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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rViscFluxU(i,j) = 0. _d 0 |
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ENDDO |
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ENDDO |
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ELSE |
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DO j=1-Oly,sNy+Oly-1 |
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DO i=1-Olx,sNx+Olx-1 |
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rViscFluxU(i,j) = |
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& -KappaRU(i,j,k) |
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jmc |
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& *rAw(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k) |
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jmc |
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& *( uFld(i,j,k,bi,bj)-uFld(i,j,k-1,bi,bj) |
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& )*rkSign*recip_drC(k) |
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& *_maskW(i,j,k,bi,bj) |
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& *_maskW(i,j,k-1,bi,bj) |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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jmc |
1.3 |
ENDIF |
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adcroft |
1.1 |
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RETURN |
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END |