pkg/mom_fluxform/mom_v_yviscflux.F

C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_v_yviscflux.F,v 1.3 2001/09/26 19:05:21 adcroft Exp $
C $Name:  $

#include "MOM_FLUXFORM_OPTIONS.h"

CBOP
C !ROUTINE: MOM_V_YVISCFLUX

C !INTERFACE: ==========================================================
      SUBROUTINE MOM_V_YVISCFLUX(
     I        bi,bj,k,
     I        vFld, del2v,
     O        yViscFluxV,
     I        myThid)

C !DESCRIPTION:
C Calculates the area integrated meridional viscous fluxes of V:
C \begin{equation*}
C F^y = - \frac{ \Delta x_f \Delta r_f h_c }{\Delta y_f}
C  ( A_h \delta_j v - A_4 \delta_j \nabla^2 v )
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  vFld                 :: meridional flow
C  del2v                :: Laplacian of meridional flow
C  myThid               :: thread number
      INTEGER bi,bj,k
      _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      _RL del2v(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      INTEGER myThid

C !OUTPUT PARAMETERS: ==================================================
C  yViscFluxV           :: viscous fluxes
      _RL yViscFluxV(1-OLx:sNx+OLx,1-OLy:sNy+OLy)

C !LOCAL VARIABLES: ====================================================
C  i,j                  :: loop indices
      INTEGER I,J
CEOP

C     - Laplacian  and bi-harmonic terms
      DO j=1-Oly,sNy+Oly-1
       DO i=1-Olx,sNx+Olx-1
        yViscFluxV(i,j) =
     & _dxF(i,j,bi,bj)*drF(k)*_hFacC(i,j,k,bi,bj)
     &     *(
     &       -viscAh*(vFld(i,j+1)-vFld(i,j))
#ifdef ISOTROPIC_COS_SCALING
     &       *cosFacU(J,bi,bj)
#endif
     &       +viscA4*(del2v(i,j+1)       -del2v(i,j)       )
#ifdef ISOTROPIC_COS_SCALING
#ifdef COSINEMETH_III
     &       *sqCosFacU(J,bi,bj)
#else
     &       *cosFacU(J,bi,bj)
#endif
#endif
     &      )*_recip_dyF(i,j,bi,bj)
       ENDDO
      ENDDO

      RETURN
      END
1	C $Header: /u/gcmpack/MITgcm/pkg/mom_fluxform/mom_v_yviscflux.F,v 1.3 2001/09/26 19:05:21 adcroft Exp $
2	C $Name: $
3
4	#include "MOM_FLUXFORM_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: MOM_V_YVISCFLUX
8
9	C !INTERFACE: ==========================================================
10	SUBROUTINE MOM_V_YVISCFLUX(
11	I bi,bj,k,
12	I vFld, del2v,
13	O yViscFluxV,
14	I myThid)
15
16	C !DESCRIPTION:
17	C Calculates the area integrated meridional viscous fluxes of V:
18	C \begin{equation*}
19	C F^y = - \frac{ \Delta x_f \Delta r_f h_c }{\Delta y_f}
20	C ( A_h \delta_j v - A_4 \delta_j \nabla^2 v )
21	C \end{equation*}
22
23	C !USES: ===============================================================
24	IMPLICIT NONE
25	#include "SIZE.h"
26	#include "EEPARAMS.h"
27	#include "PARAMS.h"
28	#include "GRID.h"
29
30	C !INPUT PARAMETERS: ===================================================
31	C bi,bj :: tile indices
32	C k :: vertical level
33	C vFld :: meridional flow
34	C del2v :: Laplacian of meridional flow
35	C myThid :: thread number
36	INTEGER bi,bj,k
37	_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
38	_RL del2v(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
39	INTEGER myThid
40
41	C !OUTPUT PARAMETERS: ==================================================
42	C yViscFluxV :: viscous fluxes
43	_RL yViscFluxV(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
44
45	C !LOCAL VARIABLES: ====================================================
46	C i,j :: loop indices
47	INTEGER I,J
48	CEOP
49
50	C - Laplacian and bi-harmonic terms
51	DO j=1-Oly,sNy+Oly-1
52	DO i=1-Olx,sNx+Olx-1
53	yViscFluxV(i,j) =
54	& _dxF(i,j,bi,bj)drF(k)_hFacC(i,j,k,bi,bj)
55	& *(
56	& -viscAh*(vFld(i,j+1)-vFld(i,j))
57	#ifdef ISOTROPIC_COS_SCALING
58	& *cosFacU(J,bi,bj)
59	#endif
60	& +viscA4*(del2v(i,j+1) -del2v(i,j) )
61	#ifdef ISOTROPIC_COS_SCALING
62	#ifdef COSINEMETH_III
63	& *sqCosFacU(J,bi,bj)
64	#else
65	& *cosFacU(J,bi,bj)
66	#endif
67	#endif
68	& )*_recip_dyF(i,j,bi,bj)
69	ENDDO
70	ENDDO
71
72	RETURN
73	END