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jahn |
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C $Header: /u/gcmpack/MITgcm/pkg/gchem/gchem_add_tendency.F,v 1.2 2004/11/29 03:34:55 mlosch Exp $ |
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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_ADD_TENDENCY |
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C !INTERFACE: ========================================================== |
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SUBROUTINE GCHEM_ADD_TENDENCY(bi,bj,iMin,iMax,jMin,jMax,k, |
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& iTracer, myTime,myIter, myThid ) |
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C !DESCRIPTION: |
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C In the case of GCHEM_SEPARATE_FORCING undefined, GCHEM_ADD_TENDENCY |
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C will update passive tracer tendencies gPtr with gchemTendency, |
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C the latter having been computed in GCHEM_CALC_TENDENDY, so that |
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C they will be incorporated into regular timestepping in |
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C PTRACERS_INTERGRATE. |
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C IF GCHEM_SEPARATE_FORCING is defined, this routine is empty. |
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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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#include "PTRACERS.h" |
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#include "GCHEM_FIELDS.h" |
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C !INPUT PARAMETERS: =================================================== |
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C myThid :: thread number |
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C myIter :: current timestep |
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C myTime :: current time |
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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 myThid, myIter |
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_RL myTime |
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INTEGER iTracer |
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INTEGER bi,bj,imin,imax,jmin,jmax,k |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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INTEGER i,j |
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INTEGER niter |
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CEOP |
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#ifdef ALLOW_GCHEM |
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# ifndef GCHEM_SEPARATE_FORCING |
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C apply the tendencies computed in GCHEM_CALC_TENDENCY to the passive |
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C tracers tendendy terms. The part of the code could also go into |
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C ptracers_forcing and replace the call to gchem_add_tendency there, |
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C but this way, no gchem-related header files and CPP-flags are required |
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C within ptracers_forcing. |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gPtr(I,J,K,bi,bj,iTracer) = gPtr(I,J,K,bi,bj,iTracer) |
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& + gchemTendency(I,J,K,bi,bj,iTracer) |
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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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