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C $Header: /u/gcmpack/MITgcm/pkg/ptracers/ptracers_calc_diff.F,v 1.4 2007/09/27 14:42:59 dimitri Exp $ |
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jmc |
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C $Name: $ |
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#include "PTRACERS_OPTIONS.h" |
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CBOP |
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C !ROUTINE: PTRACERS_CALC_DIFF |
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1.5 |
C !INTERFACE: |
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SUBROUTINE PTRACERS_CALC_DIFF( |
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1.1 |
I bi,bj,iMin,iMax,jMin,jMax,k, |
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I maskUp, |
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O KappaRtr, |
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I myThid) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE PTRACERS_CALC_DIFF |
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C | o Calculate net vertical diffusivity for passive tracers |
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C *==========================================================* |
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C | Combines spatially varying diffusion coefficients from |
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C | KPP and/or GM and/or convective stability test. |
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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 "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "GRID.h" |
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#include "DYNVARS.h" |
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#include "PTRACERS_SIZE.h" |
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#include "PTRACERS_PARAMS.h" |
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c #include "PTRACERS_FIELDS.h" |
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c #include "GAD.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C bi, bj :: tile indices |
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C iMin,iMax :: Range of points for which calculation is performed. |
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C jMin,jMax :: Range of points for which calculation is performed. |
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C maskUp :: land/water mask for Wvel points (above tracer level) |
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C myThid :: Instance number for this innvocation of PTRACERS_CALC_DIFF |
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C KappaRtr :: Net diffusivity for temperature |
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C KappaRS :: Net diffusivity for salinity |
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INTEGER bi,bj,iMin,iMax,jMin,jMax,k |
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_RS maskUp(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL KappaRtr(1-Olx:sNx+Olx,1-Oly:sNy+Oly,PTRACERS_num) |
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INTEGER myThid |
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C I, J :: Loop counters |
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INTEGER i,j,iTr |
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_RL KbryanLewis79 |
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#ifdef ALLOW_BL79_LAT_VARY |
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_RL KbryanLewisEQ |
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#endif |
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CEOP |
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KbryanLewis79=diffKrBL79surf+(diffKrBL79deep-diffKrBL79surf) |
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& *(atan(-(rF(k)-diffKrBL79Ho)/diffKrBL79scl)/PI+0.5 _d 0) |
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#ifdef ALLOW_BL79_LAT_VARY |
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KbryanLewisEQ=diffKrBLEQsurf+(diffKrBLEQdeep-diffKrBLEQsurf) |
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& *(atan(-(rF(k)-diffKrBLEQHo)/diffKrBLEQscl)/PI+0.5 _d 0) |
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#endif |
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C Loop over tracers |
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DO iTr=1,PTRACERS_numInUse |
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IF ( .NOT. PTRACERS_useKPP(iTr) ) THEN |
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DO j = 1-Oly, sNy+Oly |
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DO i = 1-Olx, sNx+Olx |
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KappaRtr(i,j,iTr) = |
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& IVDConvCount(i,j,k,bi,bj)*ivdc_kappa |
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dimitri |
1.3 |
#if (defined ALLOW_3D_DIFFKR || \ |
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(defined (ALLOW_AUTODIFF_TAMC) && defined (ALLOW_DIFFKR_CONTROL))) |
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& + diffKr(i,j,k,bi,bj) |
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#else |
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& + PTRACERS_diffKrNr(k,iTr) |
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#endif |
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& + KbryanLewis79 |
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#ifdef ALLOW_BL79_LAT_VARY |
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& + (KbryanLewisEQ-KbryanLewis79)*BL79LatArray(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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#ifdef ALLOW_KPP |
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IF ( PTRACERS_useKPP(iTr) ) THEN |
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C-- Set vertical diffusivity contribution from KPP |
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CALL KPP_CALC_DIFF_S( |
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I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
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O KappaRtr(1-Olx,1-Oly,iTr), |
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I myThid) |
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ENDIF |
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#endif |
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#ifdef ALLOW_GMREDI |
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IF ( PTRACERS_useGMRedi(iTr) ) THEN |
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CALL GMREDI_CALC_DIFF( |
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I bi,bj,iMin,iMax,jMin,jMax,k,1, |
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U KappaRtr(1-Olx,1-Oly,iTr), |
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I myThid) |
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ENDIF |
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#endif |
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#ifdef ALLOW_PP81 |
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IF (usePP81) THEN |
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CALL PP81_CALC_DIFF( |
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I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
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U KappaRtr(1-Olx,1-Oly,iTr), |
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I myThid) |
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ENDIF |
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#endif |
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#ifdef ALLOW_MY82 |
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IF (useMY82) THEN |
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CALL MY82_CALC_DIFF( |
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I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
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U KappaRtr(1-Olx,1-Oly,iTr), |
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I myThid) |
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ENDIF |
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#endif |
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1.1 |
#ifdef ALLOW_GGL90 |
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IF (useGGL90) THEN |
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CALL GGL90_CALC_DIFF( |
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I bi,bj,iMin+1,iMax,jMin+1,jMax,k,1, |
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U KappaRtr(1-Olx,1-Oly,iTr), |
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I myThid) |
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ENDIF |
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#endif |
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1.5 |
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C- Apply mask to vertical diffusivity |
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C jmc: don't have the impression that masking is needed |
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1.1 |
C but could be removed later if it's the case. |
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DO j = 1-Oly, sNy+Oly |
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DO i = 1-Olx, sNx+Olx |
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KappaRtr(i,j,iTr) = maskUp(i,j)*KappaRtr(i,j,iTr) |
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ENDDO |
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ENDDO |
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C end of tracer loop |
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ENDDO |
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RETURN |
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END |
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