model/src/timestep_tracer.F

C $Header: /u/gcmpack/MITgcm/model/src/timestep_tracer.F,v 1.10 2001/09/28 02:26:57 adcroft Exp $
C $Name:  $

#include "CPP_OPTIONS.h"

CBOP
C     !ROUTINE: TIMESTEP_TRACER
C     !INTERFACE:
      SUBROUTINE TIMESTEP_TRACER(
     I                     bi, bj, iMin, iMax, jMin, jMax, K,
     I                     advection_scheme,
     I                     tracer, gTracer,
     I                     myIter, myThid )
C     !DESCRIPTION: \bv
C     *==========================================================*
C     | S/R TIMESTEP_TRACER                                       
C     | o Step model tracer field forward in time                 
C     *==========================================================*
C     \ev

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

C     !INPUT/OUTPUT PARAMETERS:
C     == Routine Arguments ==
      INTEGER bi,bj,iMin,iMax,jMin,jMax,K
      INTEGER advection_scheme
      _RL  tracer (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      _RL  gTracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
      INTEGER myIter, myThid

C     !LOCAL VARIABLES:
C     == Local variables ==
      INTEGER i,j
CEOP

C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|

C-    Extrapolate tendancies to mid-time level (n+1/2)
      DO j=jMin,jMax
       DO i=iMin,iMax
         gTracer(i,j,k,bi,bj)=tracer(i,j,k,bi,bj)
     &            +deltaTtracer*gTracer(i,j,k,bi,bj)
       ENDDO
      ENDDO

      RETURN
      END
1	C $Header: /u/gcmpack/MITgcm/model/src/timestep_tracer.F,v 1.10 2001/09/28 02:26:57 adcroft Exp $
2	C $Name: $
3
4	#include "CPP_OPTIONS.h"
5
6	CBOP
7	C !ROUTINE: TIMESTEP_TRACER
8	C !INTERFACE:
9	SUBROUTINE TIMESTEP_TRACER(
10	I bi, bj, iMin, iMax, jMin, jMax, K,
11	I advection_scheme,
12	I tracer, gTracer,
13	I myIter, myThid )
14	C !DESCRIPTION: \bv
15	C ==========================================================
16	C \| S/R TIMESTEP_TRACER
17	C \| o Step model tracer field forward in time
18	C ==========================================================
19	C \ev
20
21	C !USES:
22	IMPLICIT NONE
23	C == Global variables ===
24	#include "SIZE.h"
25	#include "EEPARAMS.h"
26	#include "PARAMS.h"
27
28	C !INPUT/OUTPUT PARAMETERS:
29	C == Routine Arguments ==
30	INTEGER bi,bj,iMin,iMax,jMin,jMax,K
31	INTEGER advection_scheme
32	_RL tracer (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
33	_RL gTracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
34	INTEGER myIter, myThid
35
36	C !LOCAL VARIABLES:
37	C == Local variables ==
38	INTEGER i,j
39	CEOP
40
41	C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-\|--+----\|
42
43	C- Extrapolate tendancies to mid-time level (n+1/2)
44	DO j=jMin,jMax
45	DO i=iMin,iMax
46	gTracer(i,j,k,bi,bj)=tracer(i,j,k,bi,bj)
47	& +deltaTtracer*gTracer(i,j,k,bi,bj)
48	ENDDO
49	ENDDO
50
51	RETURN
52	END