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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/gchem/gchem_calc_tendency.F,v 1.3 2007/11/05 19:05:01 jmc Exp $ |
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mlosch |
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C $Name: $ |
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#include "GCHEM_OPTIONS.h" |
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CBOP |
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C !ROUTINE: GCHEM_CALC_TENDENCY |
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C !INTERFACE: ========================================================== |
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SUBROUTINE GCHEM_CALC_TENDENCY( |
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I myTime, myIter, myThid ) |
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C !DESCRIPTION: |
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C In the case of GCHEM_SEPARATE_FORCING not defined, |
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C this subroutine computes the tracer tendencies due to a |
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C bio-geogchemistry or ecosystem model and stores them on an array |
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C gchemTendency, that will be incorporated into regular timestepping in |
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C in ptracers_intergrate.F |
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jmc |
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C The current example uses the CFC package, but his is meant to |
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mlosch |
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C be replaced by anything that the user provides. |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "PTRACERS_SIZE.h" |
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jmc |
1.3 |
#include "PTRACERS_PARAMS.h" |
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#include "PTRACERS_FIELDS.h" |
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mlosch |
1.1 |
#include "GCHEM.h" |
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#include "GCHEM_FIELDS.h" |
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C !INPUT PARAMETERS: =================================================== |
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jmc |
1.4 |
C myTime :: current time |
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C myIter :: current timestep |
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mlosch |
1.1 |
C myThid :: thread number |
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_RL myTime |
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jmc |
1.4 |
INTEGER myIter, myThid |
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CEOP |
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mlosch |
1.1 |
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#ifdef ALLOW_GCHEM |
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# ifndef GCHEM_SEPARATE_FORCING |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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C iTracer :: ptracer number |
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C bi,bj :: tile indices |
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C k :: vertical level |
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INTEGER i,j |
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INTEGER iTracer |
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jmc |
1.4 |
INTEGER bi,bj,iMin,iMax,jMin,jMax,k |
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mlosch |
1.1 |
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C gchemTendency is re-initialized here |
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DO iTracer = 1, PTRACERS_numInUse |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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DO k = 1, Nr |
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DO j = 1-OLy, sNy+OLy |
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DO i = 1-OLx, sNx+OLx |
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gchemTendency(i,j,k,bi,bj,iTracer) = 0. _d 0 |
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mlosch |
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ENDDO |
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ENDDO |
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jmc |
1.3 |
ENDDO |
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mlosch |
1.1 |
ENDDO |
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ENDDO |
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ENDDO |
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C |
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C Here is the place for code to compute bio-geochemical |
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C tendency terms (sometimes referred to as source-minus-sink |
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C terms). The tendencies are stored on gchemTendency, as show |
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C in the CFC-example. |
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C |
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C loop over tiles |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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C define horizontal loop ranges |
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iMin = 1 |
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iMax = sNx |
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jMin = 1 |
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jMax = sNy |
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C DO iTracer = 1, PTRACER_numInUse |
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C DO k = 1, Nr |
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C DO j = 1-OLy, sNy+OLy |
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C DO i = 1-OLx, sNx+OLx |
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C gchemTendency(i,j,k,bi,bj,iTracer) = your specific model |
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mlosch |
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C ENDDO |
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C ENDDO |
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C ENDDO |
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mlosch |
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C ENDDO |
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jmc |
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mlosch |
1.1 |
#ifdef ALLOW_CFC |
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ccccccccccccccccccccccccc |
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c chemical forcing c |
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ccccccccccccccccccccccccc |
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ccccccccccccccccccccccccccc CFC cccccccccccccccccccccccccccccccc |
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c |
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k = 1 |
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CALL CFC11_FORCING( pTracer (1-OLx,1-OLy,1,bi,bj,1), |
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& gchemTendency(1-OLx,1-OLy,1,bi,bj,1), |
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& bi, bj, iMin, iMax, jMin, jMax, |
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& myIter, myTime, myThid ) |
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jmc |
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CALL CFC12_FORCING( pTracer (1-OLx,1-OLy,1,bi,bj,2), |
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& gchemTendency(1-OLx,1-OLy,1,bi,bj,2), |
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& bi, bj, iMin, iMax, jMin, jMax, |
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mlosch |
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& myIter, myTime, myThid ) |
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mlosch |
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cccccccccccccccccccccccccc END CFC cccccccccccccccccccccccccccccccccc |
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#endif /* ALLOW_CFC */ |
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C end of tile-loops |
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ENDDO |
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ENDDO |
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# endif /* GCHEM_SEPARATE_FORCING */ |
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#endif /* ALLOW_GCHEM */ |
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RETURN |
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END |
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