pkg/generic_advdiff/gad_c2_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_ADV_X

C !INTERFACE: ==========================================================
      SUBROUTINE GAD_C2_ADV_X( 
     I           bi,bj,k,
     I           uTrans,
     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  k                    :: vertical level
C  uTrans               :: zonal volume transport
C  tracer               :: tracer field
C  myThid               :: thread number
      INTEGER bi,bj,k
      _RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
      _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.
      ENDDO
      DO j=1-Oly,sNy+Oly
       DO i=1-Olx+1,sNx+Olx
        uT(i,j) = 
     &   uTrans(i,j)*(Tracer(i,j)+Tracer(i-1,j))*0.5 _d 0
       ENDDO
      ENDDO

      RETURN
      END
1	mlosch	1.4	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	adcroft	1.2	C $Name: $
3	adcroft	1.1
4			#include "GAD_OPTIONS.h"
5
6	adcroft	1.2	CBOP
7			C !ROUTINE: GAD_C2_ADV_X
8
9			C !INTERFACE: ==========================================================
10	adcroft	1.1	SUBROUTINE GAD_C2_ADV_X(
11			I bi,bj,k,
12			I uTrans,
13			I tracer,
14			O uT,
15			I myThid )
16	adcroft	1.2
17			C !DESCRIPTION:
18	adcroft	1.3	C Calculates the area integrated zonal flux due to advection of a tracer using
19	adcroft	1.2	C centered second-order interpolation:
20			C \begin{equation*}
21	adcroft	1.3	C F^x_{adv} = U \overline{\theta}^i
22	adcroft	1.2	C \end{equation*}
23
24			C !USES: ===============================================================
25	adcroft	1.1	IMPLICIT NONE
26			#include "SIZE.h"
27			#include "GRID.h"
28
29	adcroft	1.2	C !INPUT PARAMETERS: ===================================================
30			C bi,bj :: tile indices
31			C k :: vertical level
32			C uTrans :: zonal volume transport
33			C tracer :: tracer field
34			C myThid :: thread number
35	adcroft	1.1	INTEGER bi,bj,k
36			_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
37			_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy)
38	adcroft	1.2	INTEGER myThid
39
40			C !OUTPUT PARAMETERS: ==================================================
41			C uT :: zonal advective flux
42	adcroft	1.1	_RL uT (1-OLx:sNx+OLx,1-OLy:sNy+OLy)
43
44	adcroft	1.2	C !LOCAL VARIABLES: ====================================================
45			C i,j :: loop indices
46	adcroft	1.1	INTEGER i,j
47	adcroft	1.2	CEOP
48	adcroft	1.1
49			DO j=1-Oly,sNy+Oly
50			uT(1-Olx,j)=0.
51	mlosch	1.4	ENDDO
52			DO j=1-Oly,sNy+Oly
53	adcroft	1.1	DO i=1-Olx+1,sNx+Olx
54			uT(i,j) =
55			& uTrans(i,j)(Tracer(i,j)+Tracer(i-1,j))0.5 _d 0
56			ENDDO
57			ENDDO
58
59			RETURN
60			END