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C $Header: /u/gcmpack/MITgcm/model/src/external_forcing_surf.F,v 1.56 2012/06/30 01:24:35 gforget Exp $ |
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C $Name: $ |
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|
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#include "PACKAGES_CONFIG.h" |
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#include "CPP_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: FORCING_SURF_RELAX |
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C !INTERFACE: |
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SUBROUTINE FORCING_SURF_RELAX( |
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I iMin, iMax, jMin, jMax, |
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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 FORCING_SURF_RELAX |
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C | o Calculate relaxation surface forcing terms |
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C | for temperature and salinity |
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C *==========================================================* |
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C \ev |
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|
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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 "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "FFIELDS.h" |
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#include "DYNVARS.h" |
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#include "GRID.h" |
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#include "SURFACE.h" |
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#ifdef ALLOW_SEAICE |
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# include "SEAICE_SIZE.h" |
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# include "SEAICE_PARAMS.h" |
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# include "SEAICE.h" |
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#endif /* ALLOW_SEAICE */ |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C iMin,iMax, jMin,jMax :: Range of points for calculation |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number in simulation |
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C myThid :: Thread no. that called this routine. |
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INTEGER iMin, iMax |
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INTEGER jMin, jMax |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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|
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C !LOCAL VARIABLES: |
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C === Local variables === |
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C bi,bj :: tile indices |
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C i,j :: loop indices |
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C ks :: index of surface interface layer |
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INTEGER bi,bj |
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INTEGER i,j |
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INTEGER ks |
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CEOP |
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#ifdef ALLOW_DIAGNOSTICS |
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_RL tmpFac |
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#endif /* ALLOW_DIAGNOSTICS */ |
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#ifdef ALLOW_BALANCE_RELAX |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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_RL sumTile(nSx,nSy), sumGlob, globAver |
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#endif /* ALLOW_BALANCE_RELAX */ |
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|
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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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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#ifdef ALLOW_SEAICE |
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IF ( useSEAICE .AND. (.NOT. SEAICErestoreUnderIce) ) THEN |
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C Do not restore under sea-ice |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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C Heat Flux (restoring term) : |
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surfaceForcingT(i,j,bi,bj) = |
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& -lambdaThetaClimRelax(i,j,bi,bj)*(1.-AREA(i,j,bi,bj)) |
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& *(theta(i,j,ks,bi,bj)-SST(i,j,bi,bj)) |
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& *drF(ks)*_hFacC(i,j,ks,bi,bj) |
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C Salt Flux (restoring term) : |
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surfaceForcingS(i,j,bi,bj) = |
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& -lambdaSaltClimRelax(i,j,bi,bj) *(1.-AREA(i,j,bi,bj)) |
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& *(salt(i,j,ks,bi,bj)-SSS(i,j,bi,bj)) |
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& *drF(ks)*_hFacC(i,j,ks,bi,bj) |
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ENDDO |
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ENDDO |
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ELSE |
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#endif /* ALLOW_SEAICE */ |
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DO j = jMin, jMax |
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DO i = iMin, iMax |
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C Heat Flux (restoring term) : |
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surfaceForcingT(i,j,bi,bj) = |
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& -lambdaThetaClimRelax(i,j,bi,bj) |
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& *(theta(i,j,ks,bi,bj)-SST(i,j,bi,bj)) |
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& *drF(ks)*_hFacC(i,j,ks,bi,bj) |
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C Salt Flux (restoring term) : |
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surfaceForcingS(i,j,bi,bj) = |
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& -lambdaSaltClimRelax(i,j,bi,bj) |
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& *(salt(i,j,ks,bi,bj)-SSS(i,j,bi,bj)) |
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& *drF(ks)*_hFacC(i,j,ks,bi,bj) |
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ENDDO |
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ENDDO |
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#ifdef ALLOW_SEAICE |
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ENDIF |
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#endif /* ALLOW_SEAICE */ |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#ifdef NONLIN_FRSURF |
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C- T,S surface forcing will be applied (thermodynamics) after the update |
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C of surf.thickness (hFac): account for change in surf.thickness |
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IF (staggerTimeStep.AND.nonlinFreeSurf.GT.0) THEN |
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IF ( select_rStar.GT.0 ) THEN |
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# ifndef DISABLE_RSTAR_CODE |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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surfaceForcingT(i,j,bi,bj) = surfaceForcingT(i,j,bi,bj) |
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& * rStarExpC(i,j,bi,bj) |
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surfaceForcingS(i,j,bi,bj) = surfaceForcingS(i,j,bi,bj) |
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& * rStarExpC(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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# endif /* DISABLE_RSTAR_CODE */ |
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ELSEIF ( selectSigmaCoord.NE.0 ) THEN |
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# ifndef DISABLE_SIGMA_CODE |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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surfaceForcingT(i,j,bi,bj) = surfaceForcingT(i,j,bi,bj) |
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& *( 1. _d 0 + dEtaHdt(i,j,bi,bj)*deltaTFreeSurf |
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& *dBHybSigF(ks)*recip_drF(ks) |
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& *recip_hFacC(i,j,ks,bi,bj) |
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& ) |
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surfaceForcingS(i,j,bi,bj) = surfaceForcingS(i,j,bi,bj) |
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& *( 1. _d 0 + dEtaHdt(i,j,bi,bj)*deltaTFreeSurf |
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& *dBHybSigF(ks)*recip_drF(ks) |
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& *recip_hFacC(i,j,ks,bi,bj) |
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& ) |
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ENDDO |
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ENDDO |
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# endif /* DISABLE_SIGMA_CODE */ |
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ELSE |
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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IF (ks.EQ.kSurfC(i,j,bi,bj)) THEN |
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surfaceForcingT(i,j,bi,bj) = surfaceForcingT(i,j,bi,bj) |
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& *_recip_hFacC(i,j,ks,bi,bj)*hFac_surfC(i,j,bi,bj) |
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surfaceForcingS(i,j,bi,bj) = surfaceForcingS(i,j,bi,bj) |
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& *_recip_hFacC(i,j,ks,bi,bj)*hFac_surfC(i,j,bi,bj) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDIF |
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ENDIF |
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#endif /* NONLIN_FRSURF */ |
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|
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C-- end bi,bj loops. |
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ENDDO |
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ENDDO |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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#ifdef ALLOW_BALANCE_RELAX |
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|
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IF ( balanceThetaClimRelax ) THEN |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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sumTile(bi,bj) = 0. _d 0 |
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DO j=1,sNy |
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DO i=1,sNx |
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sumTile(bi,bj) = sumTile(bi,bj) |
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& + surfaceForcingT(i,j,bi,bj) |
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& *rA(i,j,bi,bj)*maskInC(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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CALL GLOBAL_SUM_TILE_RL( sumTile, sumGlob, myThid ) |
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globAver = sumGlob |
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IF ( globalArea.GT.zeroRL ) globAver = globAver / globalArea |
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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 j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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surfaceForcingT(i,j,bi,bj) = surfaceForcingT(i,j,bi,bj) |
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& - globAver |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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IF ( balancePrintMean ) THEN |
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_BEGIN_MASTER( myThid ) |
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WRITE(msgBuf,'(A,E24.17)') |
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& 'rm Global mean of SSTrelax =', globAver |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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_END_MASTER( myThid ) |
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ENDIF |
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ENDIF |
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|
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IF ( balanceSaltClimRelax ) THEN |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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sumTile(bi,bj) = 0. _d 0 |
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DO j=1,sNy |
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DO i=1,sNx |
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sumTile(bi,bj) = sumTile(bi,bj) |
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& + surfaceForcingS(i,j,bi,bj) |
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& *rA(i,j,bi,bj)*maskInC(i,j,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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CALL GLOBAL_SUM_TILE_RL( sumTile, sumGlob, myThid ) |
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globAver = sumGlob |
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IF ( globalArea.GT.zeroRL ) globAver = globAver / globalArea |
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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 j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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surfaceForcingS(i,j,bi,bj) = surfaceForcingS(i,j,bi,bj) |
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& - globAver |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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IF ( balancePrintMean ) THEN |
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_BEGIN_MASTER( myThid ) |
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WRITE(msgBuf,'(A,E24.17)') |
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& 'rm Global mean of SSSrelax =', globAver |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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_END_MASTER( myThid ) |
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ENDIF |
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ENDIF |
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|
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#endif /* ALLOW_BALANCE_RELAX */ |
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|
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#ifdef ALLOW_DIAGNOSTICS |
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IF ( useDiagnostics ) THEN |
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|
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C tRelax (temperature relaxation [W/m2], positive <-> increasing Theta) |
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tmpFac = HeatCapacity_Cp*rUnit2mass |
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CALL DIAGNOSTICS_SCALE_FILL( surfaceForcingT, tmpFac, 1, |
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& 'TRELAX ', 0, 1, 0,1,1, myThid ) |
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|
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C sRelax (salt relaxation [g/m2/s], positive <-> increasing Salt) |
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tmpFac = rUnit2mass |
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CALL DIAGNOSTICS_SCALE_FILL( surfaceForcingS, tmpFac, 1, |
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& 'SRELAX ', 0, 1, 0,1,1, myThid ) |
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|
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ENDIF |
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#endif /* ALLOW_DIAGNOSTICS */ |
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|
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RETURN |
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END |