pkg/generic_advdiff/gad_u3_adv_r.F

C $Header:  $
C $Name:  $

#include "GAD_OPTIONS.h"

      SUBROUTINE GAD_U3_ADV_R( 
     I           bi,bj,k,
     I           rTrans,
     I           tracer,
     O           wT,
     I           myThid )
C     /==========================================================\
C     | SUBROUTINE GAD_U3_ADV_R                                  |
C     | o Compute vertical advective Flux of Tracer using        |
C     |   3rd Order Upwind Scheme                                |
C     |==========================================================|
      IMPLICIT NONE

C     == GLobal variables ==
#include "SIZE.h"
#include "GRID.h"
#include "GAD.h"

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

C     == Local variables ==
      INTEGER i,j,kp1,km1,km2
      _RL Cr,Rjm,Rj,Rjp,Rjjm,Rjjp
#include "GAD_FLUX_LIMITER.h"

      km2=MAX(1,k-2)
      km1=MAX(1,k-1)
      kp1=MIN(Nr,k+1)

      IF ( k.EQ.1 .OR. k.GT.Nr ) THEN
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
         wT(i,j) = 0.
        ENDDO
       ENDDO
      ELSE
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
         Rjp=(tracer(i,j,kp1,bi,bj)-tracer(i,j,k,bi,bj))
     &        *maskC(i,j,kp1,bi,bj)
         Rj=(tracer(i,j,k,bi,bj)-tracer(i,j,km1,bi,bj))
         Rjm=(tracer(i,j,km1,bi,bj)-tracer(i,j,km2,bi,bj))
     &        *maskC(i,j,km2,bi,bj)
         Rjjp=Rjp-Rj
         Rjjm=Rj-Rjm
         wT(i,j) = maskC(i,j,km1,bi,bj)*(
     &     rTrans(i,j)*(
     &        (Tracer(i,j,k,bi,bj)+Tracer(i,j,km1,bi,bj))*0.5 _d 0
     &        -oneSixth*(Rjjm+Rjjp)*0.5 _d 0  )
     &    +ABS(rTrans(i,j))*
     &         oneSixth*(Rjjm-Rjjp)*0.5 _d 0
     &                                  )
        ENDDO
       ENDDO
      ENDIF

      RETURN
      END
1	C $Header: $
2	C $Name: $
3
4	#include "GAD_OPTIONS.h"
5
6	SUBROUTINE GAD_U3_ADV_R(
7	I bi,bj,k,
8	I rTrans,
9	I tracer,
10	O wT,
11	I myThid )
12	C /==========================================================\
13	C \| SUBROUTINE GAD_U3_ADV_R \|
14	C \| o Compute vertical advective Flux of Tracer using \|
15	C \| 3rd Order Upwind Scheme \|
16	C \|==========================================================\|
17	IMPLICIT NONE
18
19	C == GLobal variables ==
20	#include "SIZE.h"
21	#include "GRID.h"
22	#include "GAD.h"
23
24	C == Routine arguments ==
25	INTEGER bi,bj,k
26	_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
27	_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
28	_RL wT (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
29	INTEGER myThid
30
31	C == Local variables ==
32	INTEGER i,j,kp1,km1,km2
33	_RL Cr,Rjm,Rj,Rjp,Rjjm,Rjjp
34	#include "GAD_FLUX_LIMITER.h"
35
36	km2=MAX(1,k-2)
37	km1=MAX(1,k-1)
38	kp1=MIN(Nr,k+1)
39
40	IF ( k.EQ.1 .OR. k.GT.Nr ) THEN
41	DO j=1-Oly,sNy+Oly
42	DO i=1-Olx,sNx+Olx
43	wT(i,j) = 0.
44	ENDDO
45	ENDDO
46	ELSE
47	DO j=1-Oly,sNy+Oly
48	DO i=1-Olx,sNx+Olx
49	Rjp=(tracer(i,j,kp1,bi,bj)-tracer(i,j,k,bi,bj))
50	& *maskC(i,j,kp1,bi,bj)
51	Rj=(tracer(i,j,k,bi,bj)-tracer(i,j,km1,bi,bj))
52	Rjm=(tracer(i,j,km1,bi,bj)-tracer(i,j,km2,bi,bj))
53	& *maskC(i,j,km2,bi,bj)
54	Rjjp=Rjp-Rj
55	Rjjm=Rj-Rjm
56	wT(i,j) = maskC(i,j,km1,bi,bj)*(
57	& rTrans(i,j)*(
58	& (Tracer(i,j,k,bi,bj)+Tracer(i,j,km1,bi,bj))*0.5 _d 0
59	& -oneSixth(Rjjm+Rjjp)0.5 _d 0 )
60	& +ABS(rTrans(i,j))*
61	& oneSixth(Rjjm-Rjjp)0.5 _d 0
62	& )
63	ENDDO
64	ENDDO
65	ENDIF
66
67	RETURN
68	END