pkg/cheapaml/gad_c2_2d_adv_x.F

C $Header: /u/gcmpack/MITgcm/pkg/generic_advdiff/gad_c2_adv_x.F,v 1.3 2001/09/21 13:11:43 adcroft Exp $
C $Name:  $

#include "GAD_OPTIONS.h"

CBOP
C !ROUTINE: GAD_C2_2d_ADV_X

C !INTERFACE: ==========================================================
      SUBROUTINE GAD_C2_2d_ADV_X( 
     I           bi,bj,
     I           uVel,
     I           tracer,
     O           uT,
     I           myThid )

C !DESCRIPTION:
C Calculates the area integrated zonal flux due to advection of a tracer using
C centered second-order interpolation:
C \begin{equation*}
C F^x_{adv} = U \overline{\theta}^i
C \end{equation*}

C !USES: ===============================================================
      IMPLICIT NONE
#include "SIZE.h"
#include "GRID.h"

C !INPUT PARAMETERS: ===================================================
C  bi,bj                :: tile indices
C  uvel               :: zonal velocity
C  tracer               :: tracer field
C  myThid               :: thread number
      INTEGER bi,bj
      _RL uvel(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
      _RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      INTEGER myThid

C !OUTPUT PARAMETERS: ==================================================
C  uT                   :: zonal advective flux
      _RL uT    (1-OLx:sNx+OLx,1-OLy:sNy+OLy)

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

      DO j=1-Oly,sNy+Oly
       uT(1-Olx,j)=0.
       DO i=1-Olx+1,sNx+Olx
        uT(i,j) = 
     &   uVel(i,j,bi,bj)*(Tracer(i,j)+Tracer(i-1,j))*0.5 _d 0
       ENDDO
      ENDDO

      RETURN
      END
1	C $Header: /u/gcmpack/MITgcm/pkg/generic_advdiff/gad_c2_adv_x.F,v 1.3 2001/09/21 13:11:43 adcroft Exp $
2	C $Name: $
3
4	#include "GAD_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: GAD_C2_2d_ADV_X
8
9	C !INTERFACE: ==========================================================
10	SUBROUTINE GAD_C2_2d_ADV_X(
11	I bi,bj,
12	I uVel,
13	I tracer,
14	O uT,
15	I myThid )
16
17	C !DESCRIPTION:
18	C Calculates the area integrated zonal flux due to advection of a tracer using
19	C centered second-order interpolation:
20	C \begin{equation*}
21	C F^x_{adv} = U \overline{\theta}^i
22	C \end{equation*}
23
24	C !USES: ===============================================================
25	IMPLICIT NONE
26	#include "SIZE.h"
27	#include "GRID.h"
28
29	C !INPUT PARAMETERS: ===================================================
30	C bi,bj :: tile indices
31	C uvel :: zonal velocity
32	C tracer :: tracer field
33	C myThid :: thread number
34	INTEGER bi,bj
35	_RL uvel(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy)
36	_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
37	INTEGER myThid
38
39	C !OUTPUT PARAMETERS: ==================================================
40	C uT :: zonal advective flux
41	_RL uT (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
42
43	C !LOCAL VARIABLES: ====================================================
44	C i,j :: loop indices
45	INTEGER i,j
46	CEOP
47
48	DO j=1-Oly,sNy+Oly
49	uT(1-Olx,j)=0.
50	DO i=1-Olx+1,sNx+Olx
51	uT(i,j) =
52	& uVel(i,j,bi,bj)(Tracer(i,j)+Tracer(i-1,j))0.5 _d 0
53	ENDDO
54	ENDDO
55
56	RETURN
57	END