pkg/gmredi/gmredi_rtransport.F

C $Header: /u/gcmpack/MITgcm/pkg/gmredi/gmredi_rtransport.F,v 1.5.2.2 2002/11/07 17:03:41 heimbach Exp $
C $Name:  $

#include "GMREDI_OPTIONS.h"

      subroutine GMREDI_RTRANSPORT(
     I     iMin,iMax,jMin,jMax,bi,bj,K,
     I     Tracer,tracerIdentity,
     U     df,
     I     myThid)
C     /==========================================================\
C     | o SUBROUTINE GMREDI_RTRANSPORT                           |
C     |   Add vertical transport terms from GM/Redi              |
C     |   parameterization.                                      |
C     |==========================================================|
C     \==========================================================/
      IMPLICIT NONE

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

C     == Routine arguments ==
C     iMin,iMax,jMin,  - Range of points for which calculation
C     jMax,bi,bj,k       results will be set.
C     xA               - Area of X face
C     Tracer           - 3D Tracer field
C     df               - Diffusive flux component work array.
      INTEGER iMin,iMax,jMin,jMax,bi,bj,k
      _RL Tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      _RL df    (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      INTEGER tracerIdentity
      INTEGER myThid

#ifdef ALLOW_GMREDI

C     == Local variables ==
C     I, J - Loop counters
      INTEGER I, J
      _RL dTdx,dTdy
      _RL rTrans

C     Surface flux is zero
      IF (useGMRedi .AND. K.GT.1) THEN

      DO j=jMin,jMax
       DO i=iMin,iMax

C-      Horizontal gradients interpolated to W points
        dTdx = 0.5*(
     &   +0.5*(_maskW(i+1,j,k,bi,bj)
     &         *_recip_dxC(i+1,j,bi,bj)*
     &           (Tracer(i+1,j,k,bi,bj)-Tracer(i,j,k,bi,bj))
     &        +_maskW(i,j,k,bi,bj)
     &         *_recip_dxC(i,j,bi,bj)*
     &           (Tracer(i,j,k,bi,bj)-Tracer(i-1,j,k,bi,bj)))
     &   +0.5*(_maskW(i+1,j,k-1,bi,bj)
     &         *_recip_dxC(i+1,j,bi,bj)*
     &           (Tracer(i+1,j,k-1,bi,bj)-Tracer(i,j,k-1,bi,bj))
     &        +_maskW(i,j,k-1,bi,bj)
     &         *_recip_dxC(i,j,bi,bj)*
     &           (Tracer(i,j,k-1,bi,bj)-Tracer(i-1,j,k-1,bi,bj)))
     &       )

        dTdy = 0.5*(
     &   +0.5*(_maskS(i,j,k,bi,bj)
     &         *_recip_dyC(i,j,bi,bj)*
     &           (Tracer(i,j,k,bi,bj)-Tracer(i,j-1,k,bi,bj))
     &        +_maskS(i,j+1,k,bi,bj)
     &         *_recip_dyC(i,j+1,bi,bj)*
     &           (Tracer(i,j+1,k,bi,bj)-Tracer(i,j,k,bi,bj)))
     &   +0.5*(_maskS(i,j,k-1,bi,bj)
     &         *_recip_dyC(i,j,bi,bj)*
     &           (Tracer(i,j,k-1,bi,bj)-Tracer(i,j-1,k-1,bi,bj))
     &        +_maskS(i,j+1,k-1,bi,bj)
     &         *_recip_dyC(i,j+1,bi,bj)*
     &           (Tracer(i,j+1,k-1,bi,bj)-Tracer(i,j,k-1,bi,bj)))
     &       )

C-      Off-diagonal components of vertical flux
        df(i,j) = df(i,j)
     &      - _rA(i,j,bi,bj)
     &        *( Kwx(i,j,k,bi,bj)*dTdx +Kwy(i,j,k,bi,bj)*dTdy )

       ENDDO
      ENDDO

#ifdef GM_BOLUS_ADVEC
      IF (GM_AdvForm .AND. GM_AdvSeparate) THEN
       DO j=jMin,jMax
        DO i=iMin,iMax
         rTrans = 
     &      dyG(i+1,j,bi,bj)*GM_PsiX(i+1,j,k,bi,bj)
     &     -dyG( i ,j,bi,bj)*GM_PsiX( i ,j,k,bi,bj)
     &     +dxG(i,j+1,bi,bj)*GM_PsiY(i,j+1,k,bi,bj)
     &     -dxG(i, j ,bi,bj)*GM_PsiY(i, j ,k,bi,bj)
         df(i,j) = df(i,j)
     &    +rTrans*0.5
     &           *(Tracer(i,j,k,bi,bj)+Tracer(i,j,k-1,bi,bj))
        ENDDO
       ENDDO
      ENDIF
#endif /* GM_BOLUS_ADVEC */  

c     IF (.NOT.implicitDiffusion) THEN
c
c This vertical diffusion term is currently implemented
c by adding the VisbeckK*Kwz diffusivity to KappaRT/S
c See calc_diffusivity.F and calc_gt.F (calc_gs.F)
c
c      DO j=jMin,jMax
c       DO i=iMin,iMax
c        df(i,j) = df(i,j) - _rA(i,j,bi,bj)
c    &    *maskUp(i,j)*VisbeckK(i,j,bi,bj)*Kwz(i,j,k,bi,bj)
c    &    *recip_drC(k)*rkfac
c    &    *(Tracer(i,j,k-1,bi,bj)-Tracer(i,j,k,bi,bj))
c       ENDDO
c      ENDDO
c     ENDIF

      ENDIF
#endif /* ALLOW_GMREDI */

      RETURN
      END
1	heimbach	1.8	C $Header: /u/gcmpack/MITgcm/pkg/gmredi/gmredi_rtransport.F,v 1.5.2.2 2002/11/07 17:03:41 heimbach Exp $
2	adcroft	1.5	C $Name: $
3	adcroft	1.1
4			#include "GMREDI_OPTIONS.h"
5
6			subroutine GMREDI_RTRANSPORT(
7			I iMin,iMax,jMin,jMax,bi,bj,K,
8	heimbach	1.8	I Tracer,tracerIdentity,
9	adcroft	1.1	U df,
10			I myThid)
11			C /==========================================================\
12			C \| o SUBROUTINE GMREDI_RTRANSPORT \|
13			C \| Add vertical transport terms from GM/Redi \|
14			C \| parameterization. \|
15			C \|==========================================================\|
16			C \==========================================================/
17			IMPLICIT NONE
18
19			C == GLobal variables ==
20			#include "SIZE.h"
21			#include "EEPARAMS.h"
22			#include "PARAMS.h"
23			#include "GRID.h"
24			#include "GMREDI.h"
25
26			C == Routine arguments ==
27			C iMin,iMax,jMin, - Range of points for which calculation
28			C jMax,bi,bj,k results will be set.
29			C xA - Area of X face
30			C Tracer - 3D Tracer field
31			C df - Diffusive flux component work array.
32			INTEGER iMin,iMax,jMin,jMax,bi,bj,k
33			_RL Tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
34			_RL df (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
35	heimbach	1.8	INTEGER tracerIdentity
36	adcroft	1.1	INTEGER myThid
37
38			#ifdef ALLOW_GMREDI
39
40			C == Local variables ==
41			C I, J - Loop counters
42			INTEGER I, J
43			_RL dTdx,dTdy
44	jmc	1.6	_RL rTrans
45	adcroft	1.1
46			C Surface flux is zero
47	heimbach	1.2	IF (useGMRedi .AND. K.GT.1) THEN
48	adcroft	1.1
49			DO j=jMin,jMax
50			DO i=iMin,iMax
51
52			C- Horizontal gradients interpolated to W points
53			dTdx = 0.5*(
54			& +0.5*(_maskW(i+1,j,k,bi,bj)
55			& _recip_dxC(i+1,j,bi,bj)
56			& (Tracer(i+1,j,k,bi,bj)-Tracer(i,j,k,bi,bj))
57			& +_maskW(i,j,k,bi,bj)
58			& _recip_dxC(i,j,bi,bj)
59			& (Tracer(i,j,k,bi,bj)-Tracer(i-1,j,k,bi,bj)))
60			& +0.5*(_maskW(i+1,j,k-1,bi,bj)
61			& _recip_dxC(i+1,j,bi,bj)
62			& (Tracer(i+1,j,k-1,bi,bj)-Tracer(i,j,k-1,bi,bj))
63			& +_maskW(i,j,k-1,bi,bj)
64			& _recip_dxC(i,j,bi,bj)
65			& (Tracer(i,j,k-1,bi,bj)-Tracer(i-1,j,k-1,bi,bj)))
66			& )
67
68			dTdy = 0.5*(
69			& +0.5*(_maskS(i,j,k,bi,bj)
70			& _recip_dyC(i,j,bi,bj)
71			& (Tracer(i,j,k,bi,bj)-Tracer(i,j-1,k,bi,bj))
72			& +_maskS(i,j+1,k,bi,bj)
73			& _recip_dyC(i,j+1,bi,bj)
74			& (Tracer(i,j+1,k,bi,bj)-Tracer(i,j,k,bi,bj)))
75			& +0.5*(_maskS(i,j,k-1,bi,bj)
76			& _recip_dyC(i,j,bi,bj)
77			& (Tracer(i,j,k-1,bi,bj)-Tracer(i,j-1,k-1,bi,bj))
78			& +_maskS(i,j+1,k-1,bi,bj)
79			& _recip_dyC(i,j+1,bi,bj)
80			& (Tracer(i,j+1,k-1,bi,bj)-Tracer(i,j,k-1,bi,bj)))
81			& )
82
83			C- Off-diagonal components of vertical flux
84			df(i,j) = df(i,j)
85			& - _rA(i,j,bi,bj)
86	jmc	1.6	& ( Kwx(i,j,k,bi,bj)dTdx +Kwy(i,j,k,bi,bj)*dTdy )
87	adcroft	1.1
88			ENDDO
89			ENDDO
90	jmc	1.6
91			#ifdef GM_BOLUS_ADVEC
92	jmc	1.7	IF (GM_AdvForm .AND. GM_AdvSeparate) THEN
93	jmc	1.6	DO j=jMin,jMax
94			DO i=iMin,iMax
95			rTrans =
96			& dyG(i+1,j,bi,bj)*GM_PsiX(i+1,j,k,bi,bj)
97			& -dyG( i ,j,bi,bj)*GM_PsiX( i ,j,k,bi,bj)
98			& +dxG(i,j+1,bi,bj)*GM_PsiY(i,j+1,k,bi,bj)
99			& -dxG(i, j ,bi,bj)*GM_PsiY(i, j ,k,bi,bj)
100			df(i,j) = df(i,j)
101			& +rTrans*0.5
102			& *(Tracer(i,j,k,bi,bj)+Tracer(i,j,k-1,bi,bj))
103			ENDDO
104			ENDDO
105			ENDIF
106			#endif /* GM_BOLUS_ADVEC */
107	adcroft	1.1
108			c IF (.NOT.implicitDiffusion) THEN
109			c
110			c This vertical diffusion term is currently implemented
111			c by adding the VisbeckK*Kwz diffusivity to KappaRT/S
112			c See calc_diffusivity.F and calc_gt.F (calc_gs.F)
113			c
114			c DO j=jMin,jMax
115			c DO i=iMin,iMax
116			c df(i,j) = df(i,j) - _rA(i,j,bi,bj)
117	heimbach	1.3	c & maskUp(i,j)VisbeckK(i,j,bi,bj)*Kwz(i,j,k,bi,bj)
118	adcroft	1.1	c & recip_drC(k)rkfac
119			c & *(Tracer(i,j,k-1,bi,bj)-Tracer(i,j,k,bi,bj))
120			c ENDDO
121			c ENDDO
122			c ENDIF
123
124			ENDIF
125			#endif /* ALLOW_GMREDI */
126
127			RETURN
128			END