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C $Header: /u/gcmpack/MITgcm_contrib/ocean_inversion_project/code_bombC14/calc_gtr1.F,v 1.1 2006/05/25 06:43:08 dimitri Exp $ |
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C $Name: $ |
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#include "CPP_OPTIONS.h" |
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CBOP |
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C !ROUTINE: CALC_GTR1 |
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C !INTERFACE: |
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SUBROUTINE CALC_GTR1( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
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I xA,yA,uTrans,vTrans,rTrans,maskUp, |
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I KappaRT, |
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U fVerT, |
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I myTime,myIter,myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE CALC_GTR1 |
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C | o Calculate the passive tracer tendency terms for bomb C14 |
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C *==========================================================* |
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C !USES: |
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IMPLICIT NONE |
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C == GLobal variables == |
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#include "SIZE.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 "GAD.h" |
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#ifdef ALLOW_PASSIVE_TRACER |
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#include "TR1.h" |
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#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C fVerT :: Flux of temperature (T) in the vertical |
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C direction at the upper(U) and lower(D) faces of a cell. |
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C maskUp :: Land mask used to denote base of the domain. |
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C xA :: Tracer cell face area normal to X |
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C yA :: Tracer cell face area normal to X |
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C uTrans :: Zonal volume transport through cell face |
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C vTrans :: Meridional volume transport through cell face |
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C rTrans :: Vertical volume transport through cell face |
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C bi, bj, iMin, iMax, jMin, jMax :: Range of points for which calculation |
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C results will be set. |
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C myThid - Instance number for this innvocation of CALC_GT |
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_RL fVerT (1-OLx:sNx+OLx,1-OLy:sNy+OLy,2) |
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_RS xA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS yA (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL uTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL vTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RS maskUp(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL KappaRT(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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INTEGER k,kUp,kDown,kM1 |
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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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CEOP |
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#ifdef ALLOW_PASSIVE_TRACER |
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INTEGER i,j |
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#ifdef ALLOW_AUTODIFF_TAMC |
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C-- only the kUp part of fverT is set in this subroutine |
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C-- the kDown is still required |
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fVerT(1,1,kDown) = fVerT(1,1,kDown) |
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#endif |
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#ifdef INCLUDE_TR_FORCING_CODE |
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C-- External thermal forcing term(s) |
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CALL EXTERNAL_FORCING_TR( |
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I iMin,iMax,jMin,jMax,bi,bj,k, |
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I myTime,myThid) |
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#endif /* INCLUDE_TR_FORCING_CODE */ |
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CALL GAD_CALC_RHS( |
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I bi,bj,iMin,iMax,jMin,jMax,k,kM1,kUp,kDown, |
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I xA,yA,uTrans,vTrans,rTrans,maskUp, |
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I diffKhT, diffK4T, KappaRT, tr1, |
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I GAD_TR1, tracerAdvScheme, |
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U fVerT, gTr1, |
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I myThid ) |
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C-- Surface forcing term |
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IF ( k .EQ. 1 ) THEN |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gTr1(i,j,k,bi,bj) = gTr1(i,j,k,bi,bj) + |
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& surfaceTendencyTr1(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDIF |
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C Add radioactive decay wit k_decay=3.833e-12 per s, |
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C i.e., a 5730 year half life |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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gTr1(i,j,k,bi,bj) = gTr1(i,j,k,bi,bj) - |
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& 3.833e-12 * Tr1(i,j,k,bi,bj) |
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ENDDO |
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ENDDO |
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IF ( tracerAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.tracerAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.tracerAdvScheme.EQ.ENUM_CENTERED_4TH ) THEN |
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CALL ADAMS_BASHFORTH2( |
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I bi, bj, K, |
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U gTr1, gTr1nm1, |
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I myIter, myThid ) |
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ENDIF |
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#ifdef NONLIN_FRSURF |
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IF (nonlinFreeSurf.GT.0) THEN |
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CALL FREESURF_RESCALE_G( |
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I bi, bj, K, |
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U gTr1, |
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I myThid ) |
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ENDIF |
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#endif /* NONLIN_FRSURF */ |
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#endif /* ALLOW_PASSIVE_TRACER */ |
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RETURN |
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END |
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