pkg/generic_advdiff/gad_diff_r.F

C $Header: $
C $Name: $

#include "GAD_OPTIONS.h"

      SUBROUTINE GAD_DIFF_R( 
     I           bi,bj,k,
     I           KappaR,
     I           tracer,
     O           dfr,
     I           myThid )
      IMPLICIT NONE

C     == GLobal variables ==
#include "SIZE.h"
#include "GRID.h"
#include "EEPARAMS.h"
#include "PARAMS.h"

C     == Routine arguments ==
      INTEGER bi,bj,k
      _RL KappaR(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
      _RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      _RL dfr   (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      INTEGER myThid

C     == Local variables ==
      INTEGER i,j,km1
      LOGICAL TOP_LAYER

      km1=max(1,k-1)

      IF (k.eq.1 .OR. k.gt.Nr) THEN
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
         dfr(i,j) = 0.
        ENDDO
       ENDDO
      ELSE
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
         dfr(i,j) =
     &    -_rA(i,j,bi,bj)
     &     *KappaR(i,j,k)*recip_drC(k)
     &     *(Tracer(i,j,km1,bi,bj)-Tracer(i,j,k,bi,bj))*rkFac
        ENDDO
       ENDDO
      ENDIF

      RETURN
      END
1	C $Header: $
2	C $Name: $
3
4	#include "GAD_OPTIONS.h"
5
6	SUBROUTINE GAD_DIFF_R(
7	I bi,bj,k,
8	I KappaR,
9	I tracer,
10	O dfr,
11	I myThid )
12	IMPLICIT NONE
13
14	C == GLobal variables ==
15	#include "SIZE.h"
16	#include "GRID.h"
17	#include "EEPARAMS.h"
18	#include "PARAMS.h"
19
20	C == Routine arguments ==
21	INTEGER bi,bj,k
22	_RL KappaR(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr)
23	_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
24	_RL dfr (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
25	INTEGER myThid
26
27	C == Local variables ==
28	INTEGER i,j,km1
29	LOGICAL TOP_LAYER
30
31	km1=max(1,k-1)
32
33	IF (k.eq.1 .OR. k.gt.Nr) THEN
34	DO j=1-Oly,sNy+Oly
35	DO i=1-Olx,sNx+Olx
36	dfr(i,j) = 0.
37	ENDDO
38	ENDDO
39	ELSE
40	DO j=1-Oly,sNy+Oly
41	DO i=1-Olx,sNx+Olx
42	dfr(i,j) =
43	& -_rA(i,j,bi,bj)
44	& KappaR(i,j,k)recip_drC(k)
45	& (Tracer(i,j,km1,bi,bj)-Tracer(i,j,k,bi,bj))rkFac
46	ENDDO
47	ENDDO
48	ENDIF
49
50	RETURN
51	END