pkg/mom_fluxform/mom_u_yviscflux.F

C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_fluxform/mom_u_yviscflux.F,v 1.2 2001/05/29 14:01:38 adcroft Exp $
C $Name:  $

#include "CPP_OPTIONS.h"

CBOP
C !ROUTINE: MOM_U_YVISCFLUX

C !INTERFACE: ==========================================================
      SUBROUTINE MOM_U_YVISCFLUX(
     I        bi,bj,k,
     I        uFld, del2u, hFacZ,
     O        yViscFluxU,
     I        myThid)

C !DESCRIPTION:
C Calculates the area integrated meridional viscous fluxes of U:
C \begin{equation*}
C F^y = - \frac{ \Delta y_v \Delta r_f h_z }{\Delta y_u}
C  ( A_h \delta_j u - A_4 \delta_j \nabla^2 u )
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  del2u                :: Laplacian of zonal flow
C  myThid               :: thread number
      INTEGER bi,bj,k
      _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      _RL del2u(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      _RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      INTEGER myThid

C !OUTPUT PARAMETERS: ==================================================
C  yViscFluxU           :: viscous fluxes
      _RL yViscFluxU(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+1,sNy+Oly
       DO i=1-Olx,sNx+Olx
        yViscFluxU(i,j) =
     &     _dxV(i,j,bi,bj)*drF(k)*hFacZ(i,j)
     &     *(
     &       -viscAh*(uFld(i,j)-uFld(i,j-1))
#ifdef ISOTROPIC_COS_SCALING
     &       *cosFacV(J,bi,bj)
#endif
     &       +viscA4*(del2u(i,j)       -del2u(i,j-1)       )
#ifdef ISOTROPIC_COS_SCALING
#ifdef COSINEMETH_III
     &      *sqcosFacV(J,bi,bj)
#else
     &      *cosFacV(J,bi,bj)
#endif
#endif
     &      )*_recip_dyU(i,j,bi,bj)
       ENDDO
      ENDDO

      RETURN
      END
1	C $Header: /u/gcmpack/models/MITgcmUV/pkg/mom_fluxform/mom_u_yviscflux.F,v 1.2 2001/05/29 14:01:38 adcroft Exp $
2	C $Name: $
3
4	#include "CPP_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: MOM_U_YVISCFLUX
8
9	C !INTERFACE: ==========================================================
10	SUBROUTINE MOM_U_YVISCFLUX(
11	I bi,bj,k,
12	I uFld, del2u, hFacZ,
13	O yViscFluxU,
14	I myThid)
15
16	C !DESCRIPTION:
17	C Calculates the area integrated meridional viscous fluxes of U:
18	C \begin{equation*}
19	C F^y = - \frac{ \Delta y_v \Delta r_f h_z }{\Delta y_u}
20	C ( A_h \delta_j u - A_4 \delta_j \nabla^2 u )
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 uFld :: zonal flow
34	C del2u :: Laplacian of zonal flow
35	C myThid :: thread number
36	INTEGER bi,bj,k
37	_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
38	_RL del2u(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
39	_RS hFacZ(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
40	INTEGER myThid
41
42	C !OUTPUT PARAMETERS: ==================================================
43	C yViscFluxU :: viscous fluxes
44	_RL yViscFluxU(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
45
46	C !LOCAL VARIABLES: ====================================================
47	C i,j :: loop indices
48	INTEGER I,J
49	CEOP
50
51	C - Laplacian and bi-harmonic terms
52	DO j=1-Oly+1,sNy+Oly
53	DO i=1-Olx,sNx+Olx
54	yViscFluxU(i,j) =
55	& _dxV(i,j,bi,bj)drF(k)hFacZ(i,j)
56	& *(
57	& -viscAh*(uFld(i,j)-uFld(i,j-1))
58	#ifdef ISOTROPIC_COS_SCALING
59	& *cosFacV(J,bi,bj)
60	#endif
61	& +viscA4*(del2u(i,j) -del2u(i,j-1) )
62	#ifdef ISOTROPIC_COS_SCALING
63	#ifdef COSINEMETH_III
64	& *sqcosFacV(J,bi,bj)
65	#else
66	& *cosFacV(J,bi,bj)
67	#endif
68	#endif
69	& )*_recip_dyU(i,j,bi,bj)
70	ENDDO
71	ENDDO
72
73	RETURN
74	END