/[MITgcm]/MITgcm/model/src/timestep_tracer.F
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Annotation of /MITgcm/model/src/timestep_tracer.F

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Revision 1.11 - (hide annotations) (download)
Fri Dec 3 15:39:11 2004 UTC (19 years, 6 months ago) by jmc
Branch: MAIN
Changes since 1.10: +1 -4 lines
allow to compile without generic_advdiff pkg.

1 jmc 1.11 C $Header: /u/gcmpack/MITgcm/model/src/timestep_tracer.F,v 1.10 2001/09/28 02:26:57 adcroft Exp $
2 adcroft 1.2 C $Name: $
3 adcroft 1.1
4     #include "CPP_OPTIONS.h"
5    
6 cnh 1.8 CBOP
7     C !ROUTINE: TIMESTEP_TRACER
8     C !INTERFACE:
9 adcroft 1.2 SUBROUTINE TIMESTEP_TRACER(
10 adcroft 1.4 I bi, bj, iMin, iMax, jMin, jMax, K,
11     I advection_scheme,
12     I tracer, gTracer,
13 adcroft 1.2 I myIter, myThid )
14 cnh 1.8 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 adcroft 1.2 IMPLICIT NONE
23     C == Global variables ===
24 adcroft 1.1 #include "SIZE.h"
25     #include "EEPARAMS.h"
26     #include "PARAMS.h"
27 adcroft 1.2
28 cnh 1.8 C !INPUT/OUTPUT PARAMETERS:
29 adcroft 1.1 C == Routine Arguments ==
30     INTEGER bi,bj,iMin,iMax,jMin,jMax,K
31 adcroft 1.4 INTEGER advection_scheme
32 adcroft 1.1 _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 cnh 1.8
36     C !LOCAL VARIABLES:
37 adcroft 1.1 C == Local variables ==
38     INTEGER i,j
39 cnh 1.8 CEOP
40 adcroft 1.1
41 jmc 1.5 C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
42    
43 adcroft 1.10 C- Extrapolate tendancies to mid-time level (n+1/2)
44 jmc 1.5 DO j=jMin,jMax
45     DO i=iMin,iMax
46 adcroft 1.7 gTracer(i,j,k,bi,bj)=tracer(i,j,k,bi,bj)
47     & +deltaTtracer*gTracer(i,j,k,bi,bj)
48 jmc 1.5 ENDDO
49     ENDDO
50 adcroft 1.1
51     RETURN
52     END

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