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jahn |
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C $Header$ |
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C $Name$ |
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#include "LONGSTEP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: LONGSTEP_FORCING_SURF |
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C !INTERFACE: ========================================================== |
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SUBROUTINE LONGSTEP_FORCING_SURF( |
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I bi, bj, iMin, iMax, jMin, jMax, |
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I myTime,myIter,myThid ) |
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C !DESCRIPTION: |
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C Precomputes surface forcing term for pkg/ptracers. |
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C Precomputation is needed because of non-local KPP transport term, |
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C routine KPP_TRANSPORT_PTR. |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "SURFACE.h" |
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#include "FFIELDS.h" |
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c #include "DYNVARS.h" |
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#include "PTRACERS_SIZE.h" |
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#include "PTRACERS_PARAMS.h" |
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#include "PTRACERS_FIELDS.h" |
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#include "LONGSTEP.h" |
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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C myTime :: model time |
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C myIter :: time-step number |
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C myThid :: thread number |
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INTEGER bi, bj, iMin, iMax, jMin, jMax |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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#ifdef ALLOW_LONGSTEP |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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C iTrc :: tracer index |
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C ks :: surface level index |
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INTEGER i, j |
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INTEGER iTrc, ks |
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CEOP |
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IF ( usingPCoords ) THEN |
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ks = Nr |
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ELSE |
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ks = 1 |
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ENDIF |
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C Example of how to add forcing at the surface |
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DO iTrc=1,PTRACERS_numInUse |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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surfaceForcingPTr(i,j,bi,bj,iTrc) = |
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& 0. _d 0 |
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c & surfaceForcingS(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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#ifdef EXACT_CONSERV |
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IF ( (nonlinFreeSurf.GT.0 .OR. usingPCoords) |
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& .AND. useRealFreshWaterFlux ) THEN |
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DO iTrc=1,PTRACERS_numInUse |
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c- NonLin_FrSurf and RealFreshWaterFlux : PmEpR effectively changes |
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c the water column height ; temp., salt, (tracer) flux associated |
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c with this input/output of water is added here to the surface tendency. |
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c |
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c NB: LS_fwflux is PmEpR |
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c |
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IF (PTRACERS_EvPrRn(iTrc).NE.UNSET_RL) THEN |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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surfaceForcingPTr(i,j,bi,bj,iTrc) = |
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& surfaceForcingPTr(i,j,bi,bj,iTrc) |
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& + LS_fwFlux(i,j,bi,bj) |
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& *( PTRACERS_EvPrRn(iTrc) - pTracer(i,j,ks,bi,bj,iTrc) ) |
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& *mass2rUnit |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDDO |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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ELSE |
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#else /* EXACT_CONSERV */ |
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IF (.TRUE.) THEN |
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#endif /* EXACT_CONSERV */ |
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C-- EmPmR does not really affect the water column height (for tracer budget) |
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C and is converted to a salt tendency. |
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IF (convertFW2Salt .EQ. -1.) THEN |
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C- use local surface tracer field to calculate forcing term: |
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DO iTrc=1,PTRACERS_numInUse |
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IF (PTRACERS_EvPrRn(iTrc).NE.UNSET_RL) THEN |
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C account for Rain/Evap tracer content (PTRACERS_EvPrRn) using |
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C local surface tracer |
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c |
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c NB: LS_fwflux is EmPmR |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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surfaceForcingPTr(i,j,bi,bj,iTrc) = |
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& surfaceForcingPTr(i,j,bi,bj,iTrc) |
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& + LS_fwFlux(i,j,bi,bj) |
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& *( pTracer(i,j,ks,bi,bj,iTrc) - PTRACERS_EvPrRn(iTrc) ) |
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& *mass2rUnit |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDDO |
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ELSE |
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C- use uniform tracer value to calculate forcing term: |
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DO iTrc=1,PTRACERS_numInUse |
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IF (PTRACERS_EvPrRn(iTrc).NE.UNSET_RL) THEN |
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C account for Rain/Evap tracer content (PTRACERS_EvPrRn) assuming uniform |
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C surface tracer (=PTRACERS_ref) |
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c |
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c NB: LS_fwflux is EmPmR |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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surfaceForcingPTr(i,j,bi,bj,iTrc) = |
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& surfaceForcingPTr(i,j,bi,bj,iTrc) |
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& + LS_fwFlux(i,j,bi,bj) |
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& *( PTRACERS_ref(ks,iTrc) - PTRACERS_EvPrRn(iTrc) ) |
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& *mass2rUnit |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDDO |
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C- end local-surface-tracer / uniform-value distinction |
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ENDIF |
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ENDIF |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#endif /* ALLOW_LONGSTEP */ |
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RETURN |
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END |
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