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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_u_metric_cylinder.F,v 1.3 2005/07/12 00:38:31 jmc Exp $ |
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C $Name: $ |
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jmc |
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#include "MOM_FLUXFORM_OPTIONS.h" |
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CBOP |
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C !ROUTINE: MOM_U_METRIC_CYLINDER |
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C !INTERFACE: ========================================================== |
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SUBROUTINE MOM_U_METRIC_CYLINDER( |
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I bi,bj,k, |
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I uFld, vFld, |
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O uMetricTerms, |
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I myThid ) |
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C !DESCRIPTION: |
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C Calculates the zonal metric term due to cylinder curvature: |
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C \begin{equation} |
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jmc |
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C +\frac{u v}{r} |
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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 vFld :: meridional flow |
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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) |
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_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C uMetricTerms :: metric term |
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_RL uMetricTerms(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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INTEGER i,j |
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_RL radius |
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CEOP |
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DO j=1-OLy,sNy+OLy-1 |
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DO i=1-OLx+1,sNx+OLx |
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radius = (yG(i,j,bi,bj)+yG(i,j+1,bi,bj))*0.5 _d 0 |
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C- to get the same results as before: |
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c radius = yC(i,j,bi,bj) |
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IF ( radius.GT.0. ) THEN |
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uMetricTerms(i,j) = |
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afe |
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& uFld(i,j) |
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& *0.25*(vFld(i,j) + vFld(i-1,j) + |
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& vFld(i,j+1)+vFld(i-1,j+1))/radius |
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ELSE |
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uMetricTerms(i,j) = 0. |
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ENDIF |
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ENDDO |
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ENDDO |
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RETURN |
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END |
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