pkg/mom_common/mom_w_coriolis_nh.F

C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_w_coriolis_nh.F,v 1.1 2006/03/20 14:40:31 jmc Exp $
C $Name:  $

#include "MOM_COMMON_OPTIONS.h"

CBOP
C !ROUTINE: MOM_W_CORIOLIS_NH

C !INTERFACE: ==========================================================
      SUBROUTINE MOM_W_CORIOLIS_NH(
     I               bi,bj,k,
     I               uFld, vFld,
     U               wCoriolisTerm,
     I               myThid )

C !DESCRIPTION:
C Calculates the Coriolis term in the vertical momentum equation:
C \begin{equation*}
C + f'\overline{u}^{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                 :: horizontal flow, u component
C  vFld                 :: horizontal flow, v component
C  myThid               :: my Thread Id number
      INTEGER bi,bj,k
      _RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      _RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      INTEGER myThid

C !OUTPUT PARAMETERS: ==================================================
C  uCoriolisTerm        :: Coriolis term
      _RL wCoriolisTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy)

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


C Energy conserving discretization of 2*Omega*cos(phi)*u_eastward
      IF ( k.GT.1 .AND. k.LE.Nr ) THEN
        DO j=1-Oly,sNy+Oly-1
         DO i=1-Olx,sNx+Olx-1
           wCoriolisTerm(i,j) =
     &      -gravitySign*fCoriCos(i,j,bi,bj)*
     &       ( angleCosC(i,j,bi,bj)*(
     &                (uFld(i,j,k-1,bi,bj)+uFld(i+1,j,k-1,bi,bj))
     &              + (uFld(i,j, k ,bi,bj)+uFld(i+1,j, k ,bi,bj))
     &                              )*0.25 _d 0
     &        -angleSinC(i,j,bi,bj)*(
     &                (vFld(i,j,k-1,bi,bj)+vFld(i,j+1,k-1,bi,bj))
     &              + (vFld(i,j, k ,bi,bj)+vFld(i,j+1, k ,bi,bj))
     &                              )*0.25 _d 0
     &       )*wUnit2rVel(k)
         ENDDO
        ENDDO
      ELSE
        DO j=1-Oly,sNy+Oly-1
         DO i=1-Olx,sNx+Olx-1
           wCoriolisTerm(i,j) = 0. _d 0
         ENDDO
        ENDDO
      ENDIF

#endif /* ALLOW_NONHYDROSTATIC */

      RETURN
      END
1	C $Header: /u/gcmpack/MITgcm/pkg/mom_common/mom_w_coriolis_nh.F,v 1.1 2006/03/20 14:40:31 jmc Exp $
2	C $Name: $
3
4	#include "MOM_COMMON_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: MOM_W_CORIOLIS_NH
8
9	C !INTERFACE: ==========================================================
10	SUBROUTINE MOM_W_CORIOLIS_NH(
11	I bi,bj,k,
12	I uFld, vFld,
13	U wCoriolisTerm,
14	I myThid )
15
16	C !DESCRIPTION:
17	C Calculates the Coriolis term in the vertical momentum equation:
18	C \begin{equation*}
19	C + f'\overline{u}^{ik}
20	C \end{equation*}
21
22	C !USES: ===============================================================
23	IMPLICIT NONE
24	#include "SIZE.h"
25	#include "EEPARAMS.h"
26	#include "PARAMS.h"
27	#include "GRID.h"
28
29	C !INPUT PARAMETERS: ===================================================
30	C bi,bj :: tile indices
31	C k :: vertical level
32	C uFld :: horizontal flow, u component
33	C vFld :: horizontal flow, v component
34	C myThid :: my Thread Id number
35	INTEGER bi,bj,k
36	_RL uFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
37	_RL vFld(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
38	INTEGER myThid
39
40	C !OUTPUT PARAMETERS: ==================================================
41	C uCoriolisTerm :: Coriolis term
42	_RL wCoriolisTerm(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
43
44	#ifdef ALLOW_NONHYDROSTATIC
45	C !LOCAL VARIABLES: ====================================================
46	C i,j :: loop indices
47	INTEGER i,j
48	CEOP
49
50
51	C Energy conserving discretization of 2Omegacos(phi)*u_eastward
52	IF ( k.GT.1 .AND. k.LE.Nr ) THEN
53	DO j=1-Oly,sNy+Oly-1
54	DO i=1-Olx,sNx+Olx-1
55	wCoriolisTerm(i,j) =
56	& -gravitySignfCoriCos(i,j,bi,bj)
57	& ( angleCosC(i,j,bi,bj)*(
58	& (uFld(i,j,k-1,bi,bj)+uFld(i+1,j,k-1,bi,bj))
59	& + (uFld(i,j, k ,bi,bj)+uFld(i+1,j, k ,bi,bj))
60	& )*0.25 _d 0
61	& -angleSinC(i,j,bi,bj)*(
62	& (vFld(i,j,k-1,bi,bj)+vFld(i,j+1,k-1,bi,bj))
63	& + (vFld(i,j, k ,bi,bj)+vFld(i,j+1, k ,bi,bj))
64	& )*0.25 _d 0
65	& )*wUnit2rVel(k)
66	ENDDO
67	ENDDO
68	ELSE
69	DO j=1-Oly,sNy+Oly-1
70	DO i=1-Olx,sNx+Olx-1
71	wCoriolisTerm(i,j) = 0. _d 0
72	ENDDO
73	ENDDO
74	ENDIF
75
76	#endif /* ALLOW_NONHYDROSTATIC */
77
78	RETURN
79	END