/[MITgcm]/MITgcm/model/src/cycle_tracer.F
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revision 1.1 by adcroft, Thu Jan 4 21:38:31 2001 UTC revision 1.2 by adcroft, Fri Feb 2 21:04:48 2001 UTC
# Line 0  Line 1 
1    C $Header$
2    
3    #include "CPP_OPTIONS.h"
4    
5    C     /==========================================================\
6    C     | S/R CYCLE_TRACER                                         |
7    C     |==========================================================|
8    C     | o Cycles the time-stepping arrays for a tracer field     |
9    C     \==========================================================/
10          SUBROUTINE CYCLE_TRACER(
11         I                   bi, bj, iMin, iMax, jMin, jMax, K,
12         U                   tracer, gTracer, gTrNm1,
13         I                   myTime, myThid )
14          IMPLICIT NONE
15    C Common
16    #include "SIZE.h"
17    #include "EEPARAMS.h"
18    #include "PARAMS.h"
19    C     == Routine Arguments ==
20    C     bi,bj,iMin,iMax,jMin,jMax, K - Loop counters
21    C     tracer, gTracer, gTrNm1      - Tracer field, with tendencies
22    C     myThid                       - Instance number for
23    C                                    this call to S/R CORRECTION_STEP
24    C     myTime                       - Current simulation time for this instance.
25          INTEGER bi,bj,iMin,iMax,jMin,jMax,K
26          _RL tracer (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
27          _RL gTracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
28          _RL gTrNm1 (1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy)
29          INTEGER myThid
30          _RL myTime
31    
32    C     == Local variables ==
33          INTEGER i,j
34    
35    C     Rotate tracer/gTracer/gTrNm1
36          DO j=jMin,jMax
37           DO i=iMin,iMax
38            tracer(i,j,k,bi,bj)=gTrNm1(i,j,k,bi,bj)
39            gTrNm1(i,j,k,bi,bj)=gTracer(i,j,k,bi,bj)
40           ENDDO
41          ENDDO
42    
43          RETURN
44          END
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