pkg/generic_advdiff/gad_c2_adv_r.F

C $Header: /u/gcmpack/models/MITgcmUV/pkg/generic_advdiff/gad_c2_adv_r.F,v 1.2 2001/07/12 00:30:27 jmc Exp $
C $Name:  $

#include "GAD_OPTIONS.h"

CBOP
C !ROUTINE: GAD_C2_ADV_R

C !INTERFACE: ==========================================================
      SUBROUTINE GAD_C2_ADV_R( 
     I           bi,bj,k,
     I           rTrans,
     I           tracer,
     O           wT,
     I           myThid )

C !DESCRIPTION:
C Calculates the vertical flux due to advection of a tracer using
C centered second-order interpolation:
C \begin{equation*}
C F^r_{adv} = w \theta
C \end{equation*}

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

C !INPUT PARAMETERS: ===================================================
C  bi,bj                :: tile indices
C  k                    :: vertical level
C  rTrans               :: vertical volume transport
C  tracer               :: tracer field
C  myThid               :: thread number
      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)
      INTEGER myThid

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

C !LOCAL VARIABLES: ====================================================
C  i,j                  :: loop indices
C  km1                  :: =k+1 for k<Nr, =Nr for k>=Nr
      INTEGER i,j,km1
CEOP

      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
         wT(i,j) = 0.
        ENDDO
       ENDDO
      ELSE
       DO j=1-Oly,sNy+Oly
        DO i=1-Olx,sNx+Olx
         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
        ENDDO
       ENDDO
      ENDIF

      RETURN
      END
1	adcroft	1.3	C $Header: /u/gcmpack/models/MITgcmUV/pkg/generic_advdiff/gad_c2_adv_r.F,v 1.2 2001/07/12 00:30:27 jmc Exp $
2	jmc	1.2	C $Name: $
3	adcroft	1.1
4			#include "GAD_OPTIONS.h"
5
6	adcroft	1.3	CBOP
7			C !ROUTINE: GAD_C2_ADV_R
8
9			C !INTERFACE: ==========================================================
10	adcroft	1.1	SUBROUTINE GAD_C2_ADV_R(
11			I bi,bj,k,
12			I rTrans,
13			I tracer,
14			O wT,
15			I myThid )
16	adcroft	1.3
17			C !DESCRIPTION:
18			C Calculates the vertical flux due to advection of a tracer using
19			C centered second-order interpolation:
20			C \begin{equation*}
21			C F^r_{adv} = w \theta
22			C \end{equation*}
23
24			C !USES: ===============================================================
25	adcroft	1.1	IMPLICIT NONE
26			#include "SIZE.h"
27			#include "GRID.h"
28			#include "EEPARAMS.h"
29			#include "PARAMS.h"
30
31	adcroft	1.3	C !INPUT PARAMETERS: ===================================================
32			C bi,bj :: tile indices
33			C k :: vertical level
34			C rTrans :: vertical volume transport
35			C tracer :: tracer field
36			C myThid :: thread number
37	adcroft	1.1	INTEGER bi,bj,k
38			_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
39			_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
40	adcroft	1.3	INTEGER myThid
41
42			C !OUTPUT PARAMETERS: ==================================================
43			C wT :: vertical advective flux
44	adcroft	1.1	_RL wT (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
45
46	adcroft	1.3	C !LOCAL VARIABLES: ====================================================
47			C i,j :: loop indices
48			C km1 :: =k+1 for k<Nr, =Nr for k>=Nr
49	adcroft	1.1	INTEGER i,j,km1
50	adcroft	1.3	CEOP
51	adcroft	1.1
52			km1=max(1,k-1)
53
54	jmc	1.2	IF ( k.EQ.1 .OR. k.GT.Nr) THEN
55	adcroft	1.1	DO j=1-Oly,sNy+Oly
56			DO i=1-Olx,sNx+Olx
57			wT(i,j) = 0.
58			ENDDO
59			ENDDO
60			ELSE
61			DO j=1-Oly,sNy+Oly
62			DO i=1-Olx,sNx+Olx
63	jmc	1.2	wT(i,j) = maskC(i,j,kM1,bi,bj)*
64			& rTrans(i,j)*
65	adcroft	1.1	& (Tracer(i,j,k,bi,bj)+Tracer(i,j,kM1,bi,bj))*0.5 _d 0
66			ENDDO
67			ENDDO
68			ENDIF
69
70			RETURN
71			END