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C $Header: /u/gcmpack/models/MITgcmUV/model/src/calc_gt.F,v 1.36 2001/09/26 18:09:14 cnh 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_GT |
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C !INTERFACE: |
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SUBROUTINE CALC_GT( |
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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_GT |
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C | o Calculate the temperature tendency terms. |
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C *==========================================================* |
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C | A procedure called EXTERNAL_FORCING_T is called from |
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C | here. These procedures can be used to add per problem |
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C | heat flux source terms. |
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C | Note: Although it is slightly counter-intuitive the |
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C | EXTERNAL_FORCING routine is not the place to put |
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C | file I/O. Instead files that are required to |
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C | calculate the external source terms are generally |
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C | read during the model main loop. This makes the |
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C | logisitics of multi-processing simpler and also |
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C | makes the adjoint generation simpler. It also |
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C | allows for I/O to overlap computation where that |
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C | is supported by hardware. |
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C | Aside from the problem specific term the code here |
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C | forms the tendency terms due to advection and mixing |
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C | The baseline implementation here uses a centered |
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C | difference form for the advection term and a tensorial |
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C | divergence of a flux form for the diffusive term. The |
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C | diffusive term is formulated so that isopycnal mixing and |
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C | GM-style subgrid-scale terms can be incorporated b simply |
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C | setting the diffusion tensor terms appropriately. |
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C *==========================================================* |
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C \ev |
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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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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_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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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, theta, |
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I GAD_TEMPERATURE, tempAdvScheme, |
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U fVerT, gT, |
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I myThid ) |
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#ifdef INCLUDE_T_FORCING_CODE |
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C-- External thermal forcing term(s) |
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c CALL EXTERNAL_FORCING_T( |
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c I iMin,iMax,jMin,jMax,bi,bj,k, |
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c I myTime,myThid) |
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#endif /* INCLUDE_T_FORCING_CODE */ |
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IF ( tempAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.tempAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.tempAdvScheme.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 gT, gTnm1, |
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I myIter, myThid ) |
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ENDIF |
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#ifdef INCLUDE_T_FORCING_CODE |
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C-- External thermal forcing term(s) |
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CALL EXTERNAL_FORCING_T( |
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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_T_FORCING_CODE */ |
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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 gT, |
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I myThid ) |
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ENDIF |
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#endif /* NONLIN_FRSURF */ |
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RETURN |
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END |
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