model/src/timestep_tracer.F

C $Header: /u/gcmpack/MITgcm/model/src/timestep_tracer.F,v 1.15 2011/05/20 16:34:19 jmc Exp $
C $Name:  $

#include "PACKAGES_CONFIG.h"
#include "CPP_OPTIONS.h"

CBOP
C     !ROUTINE: TIMESTEP_TRACER
C     !INTERFACE:
      SUBROUTINE TIMESTEP_TRACER(
     I                     bi, bj, k, deltaTloc,
     I                     tracer,
     U                     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"
#include "GRID.h"

C     !INPUT/OUTPUT PARAMETERS:
C     == Routine Arguments ==
      INTEGER bi, bj, k
      _RL     deltaTloc
      _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-    Step tracer forward in time and store provisional value in gTracer array
      DO j=1-Oly,sNy+Oly
       DO i=1-Olx,sNx+Olx
         gTracer(i,j,k,bi,bj)=tracer(i,j,k,bi,bj)
     &            +deltaTloc*gTracer(i,j,k,bi,bj)
#ifdef ALLOW_OBCS
     &                      *maskInC(i,j,bi,bj)
#endif
       ENDDO
      ENDDO

      RETURN
      END
1	jmc	1.16	C $Header: /u/gcmpack/MITgcm/model/src/timestep_tracer.F,v 1.15 2011/05/20 16:34:19 jmc Exp $
2	adcroft	1.2	C $Name: $
3	adcroft	1.1
4	jmc	1.15	#include "PACKAGES_CONFIG.h"
5	adcroft	1.1	#include "CPP_OPTIONS.h"
6
7	cnh	1.8	CBOP
8			C !ROUTINE: TIMESTEP_TRACER
9			C !INTERFACE:
10	adcroft	1.2	SUBROUTINE TIMESTEP_TRACER(
11	jmc	1.16	I bi, bj, k, deltaTloc,
12			I tracer,
13			U gTracer,
14	adcroft	1.2	I myIter, myThid )
15	cnh	1.8	C !DESCRIPTION: \bv
16			C ==========================================================
17	jmc	1.15	C \| S/R TIMESTEP_TRACER
18			C \| o Step model tracer field forward in time
19	cnh	1.8	C ==========================================================
20			C \ev
21
22			C !USES:
23	adcroft	1.2	IMPLICIT NONE
24			C == Global variables ===
25	adcroft	1.1	#include "SIZE.h"
26			#include "EEPARAMS.h"
27			#include "PARAMS.h"
28	jmc	1.15	#include "GRID.h"
29	adcroft	1.2
30	cnh	1.8	C !INPUT/OUTPUT PARAMETERS:
31	adcroft	1.1	C == Routine Arguments ==
32	jmc	1.16	INTEGER bi, bj, k
33	jahn	1.14	_RL deltaTloc
34	adcroft	1.1	_RL tracer (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
35			_RL gTracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
36			INTEGER myIter, myThid
37	cnh	1.8
38			C !LOCAL VARIABLES:
39	adcroft	1.1	C == Local variables ==
40			INTEGER i,j
41	cnh	1.8	CEOP
42	adcroft	1.1
43	jmc	1.5	C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-\|--+----\|
44
45	jmc	1.15	C- Step tracer forward in time and store provisional value in gTracer array
46			DO j=1-Oly,sNy+Oly
47			DO i=1-Olx,sNx+Olx
48	adcroft	1.7	gTracer(i,j,k,bi,bj)=tracer(i,j,k,bi,bj)
49	jahn	1.14	& +deltaTloc*gTracer(i,j,k,bi,bj)
50	jmc	1.15	#ifdef ALLOW_OBCS
51			& *maskInC(i,j,bi,bj)
52			#endif
53	jmc	1.5	ENDDO
54			ENDDO
55	adcroft	1.1
56			RETURN
57			END