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mom_v_coriolis_nh.F
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mom_v_coriolis_nh.F
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C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_v_coriolis_nh.F,v 1.3 2010/03/16 00:20:14 jmc Exp $
C $Name: $
#include "MOM_COMMON_OPTIONS.h"
CBOP
C !ROUTINE: MOM_V_CORIOLIS_NH
C !INTERFACE: ==========================================================
SUBROUTINE MOM_V_CORIOLIS_NH(
I bi,bj,k,wFld,
O vCoriolisTerm,
I myThid )
C !DESCRIPTION:
C Calculates the 3.D Coriolis term in the meridional momentum equation:
C \begin{equation*}
C - \overline{ f_prime \overline{w}^{k} }^{i}
C \end{equation*}
C consistent with Non-Hydrostatic (or quasi-hydrostatic) formulation
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 wFld :: vertical flow
C myThid :: thread number
INTEGER bi,bj,k
_RL wFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
INTEGER myThid
C !OUTPUT PARAMETERS: ==================================================
C vCoriolisTerm :: Coriolis term
_RL vCoriolisTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
C !LOCAL VARIABLES: ====================================================
C i,j :: loop indices
INTEGER i,j,kp1
_RL wMsk
CEOP
kp1=min(k+1,Nr)
wMsk=1.
IF (k.EQ.Nr) wMsk=0.
C Energy conserving discretization of 2*Omega*cos(phi)*w
DO j=2-Oly,sNy+Oly
DO i=1-Olx,sNx+Olx
vCoriolisTerm(i,j) =
& -0.5*( fCoriCos( i ,j,bi,bj)*angleSinC(i, j ,bi,bj)
& *0.5*( wFld( i ,j, k ,bi,bj)*rVel2wUnit( k )
& +wFld( i ,j,kp1,bi,bj)*rVel2wUnit(kp1)*wMsk )
& + fCoriCos(i,j-1,bi,bj)*angleSinC(i,j-1,bi,bj)
& *0.5*( wFld(i,j-1, k ,bi,bj)*rVel2wUnit( k )
& +wFld(i,j-1,kp1,bi,bj)*rVel2wUnit(kp1)*wMsk )
& )*gravitySign
ENDDO
ENDDO
RETURN
END