pkg/mom_common/mom_v_rviscflux.F

C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_v_rviscflux.F,v 1.3 2005/07/30 22:02:14 jmc Exp $
C $Name:  $

#include "MOM_COMMON_OPTIONS.h"

CBOP
C !ROUTINE: MOM_V_RVISCFLUX

C !INTERFACE: ==========================================================
      SUBROUTINE MOM_V_RVISCFLUX(
     I        bi,bj,k,
     I        vFld, KappaRV,
     O        rViscFluxV,
     I        myThid)

C !DESCRIPTION:
C Calculates the area integrated vertical viscous fluxes of V
C  at vertical interface k (between level k & k-1):
C \begin{equation*}
C F^r = - \frac{ {\cal A}_s }{\Delta r_c} A_r \delta_k 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  KappaRV              :: vertical viscosity
C  myThid               :: thread number
      INTEGER bi,bj,k
      _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      _RL KappaRV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
      INTEGER myThid

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

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

C     - Vertical viscous flux
      IF ( k.LE.1 .OR. k.GT.Nr ) THEN
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
          rViscFluxV(i,j) = 0. _d 0
        ENDDO
       ENDDO
      ELSE
       DO j=1-Oly,sNy+Oly-1
        DO i=1-Olx,sNx+Olx-1
          rViscFluxV(i,j) =
     &     -KappaRV(i,j,k)
     &     *rAs(i,j,bi,bj)*deepFac2F(k)*rhoFacF(k)
     &     *( vFld(i,j,k,bi,bj)-vFld(i,j,k-1,bi,bj)
     &      )*rkSign*recip_drC(k)
     &     *_maskS(i,j,k,bi,bj)
     &     *_maskS(i,j,k-1,bi,bj)
        ENDDO
       ENDDO
      ENDIF

      RETURN
      END
1	C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_v_rviscflux.F,v 1.3 2005/07/30 22:02:14 jmc Exp $
2	C $Name: $
3
4	#include "MOM_COMMON_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: MOM_V_RVISCFLUX
8
9	C !INTERFACE: ==========================================================
10	SUBROUTINE MOM_V_RVISCFLUX(
11	I bi,bj,k,
12	I vFld, KappaRV,
13	O rViscFluxV,
14	I myThid)
15
16	C !DESCRIPTION:
17	C Calculates the area integrated vertical viscous fluxes of V
18	C at vertical interface k (between level k & k-1):
19	C \begin{equation*}
20	C F^r = - \frac{ {\cal A}_s }{\Delta r_c} A_r \delta_k 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 KappaRV :: vertical viscosity
35	C myThid :: thread number
36	INTEGER bi,bj,k
37	_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
38	_RL KappaRV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
39	INTEGER myThid
40
41	C !OUTPUT PARAMETERS: ==================================================
42	C rViscFluxV :: viscous fluxes
43	_RL rViscFluxV(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 - Vertical viscous flux
51	IF ( k.LE.1 .OR. k.GT.Nr ) THEN
52	DO j=1-Oly,sNy+Oly
53	DO i=1-Olx,sNx+Olx
54	rViscFluxV(i,j) = 0. _d 0
55	ENDDO
56	ENDDO
57	ELSE
58	DO j=1-Oly,sNy+Oly-1
59	DO i=1-Olx,sNx+Olx-1
60	rViscFluxV(i,j) =
61	& -KappaRV(i,j,k)
62	& rAs(i,j,bi,bj)deepFac2F(k)*rhoFacF(k)
63	& *( vFld(i,j,k,bi,bj)-vFld(i,j,k-1,bi,bj)
64	& )rkSignrecip_drC(k)
65	& *_maskS(i,j,k,bi,bj)
66	& *_maskS(i,j,k-1,bi,bj)
67	ENDDO
68	ENDDO
69	ENDIF
70
71	RETURN
72	END