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mom_u_metric_nh.F
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mom_u_metric_nh.F
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#include "MOM_COMMON_OPTIONS.h"
CBOP
C !ROUTINE: MOM_U_METRIC_NH
C !INTERFACE: ==========================================================
SUBROUTINE MOM_U_METRIC_NH(
I bi,bj,k,
I uFld, wFld,
O uMetricTerms,
I myThid )
C !DESCRIPTION:
C Calculates the zonal metric term due to non-hydrostaticity on the sphere:
C \begin{equation}
C -\frac{u}{a} \overline{w}^{ik}
C \end{equation}
C !USES: ===============================================================
IMPLICIT NONE
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "GRID.h"
C !INPUT PARAMETERS: ===================================================
C bi,bj :: tile indices
C k :: vertical level
C uFld :: zonal flow
C wFld :: vertical flow
C myThid :: thread number
INTEGER bi,bj,k
_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
_RL wFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
INTEGER myThid
C !OUTPUT PARAMETERS: ==================================================
C uMetricTerms :: metric term
_RL uMetricTerms(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
C !LOCAL VARIABLES: ====================================================
C i,j :: loop indices
INTEGER i,j,kp1
_RL wVelBottomOverride
CEOP
kp1=min(k+1,Nr)
wVelBottomOverride=1.
IF (k.EQ.Nr) wVelBottomOverride=0.
DO j=1-Olx,sNy+Oly
DO i=1-Olx+1,sNx+Olx
uMetricTerms(i,j) = uFld(i,j)*recip_rSphere*recip_deepFacC(k)
& *0.25*( (wFld(i-1,j,kp1,bi,bj)+wFld(i,j,kp1,bi,bj))
& *rVel2wUnit(kp1)*wVelBottomOverride
& + (wFld(i-1,j, k ,bi,bj)+wFld(i,j, k ,bi,bj))
& *rVel2wUnit( k )
& )*gravitySign
ENDDO
ENDDO
RETURN
END