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C $Header: /u/gcmpack/MITgcm/model/src/calc_viscosity.F,v 1.11 2014/12/24 19:09:33 jmc 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: CALC_VISCOSITY |
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C !INTERFACE: |
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SUBROUTINE CALC_VISCOSITY( |
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I bi,bj, iMin,iMax,jMin,jMax, |
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O kappaRU, kappaRV, |
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I myThid ) |
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|
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE CALC_VISCOSITY |
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C | o Calculate net vertical viscosity |
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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 "DYNVARS.h" |
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#include "GRID.h" |
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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 which calculation |
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C bi,bj :: current tile indices |
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C kappaRU :: Total vertical viscosity for zonal flow. |
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C kappaRV :: Total vertical viscosity for meridional flow. |
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C myThid :: my Thread Id number |
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INTEGER iMin,iMax,jMin,jMax |
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INTEGER bi,bj |
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_RL kappaRU(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr+1) |
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_RL kappaRV(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr+1) |
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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 i, j, k :: Loop counters |
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INTEGER i,j,k |
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INTEGER ki |
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#ifndef EXCLUDE_PCELL_MIX_CODE |
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INTEGER km, mixSurf, mixBott |
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_RL pC_kFac |
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_RL tmpFac(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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#endif |
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CEOP |
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|
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DO k = 1,Nr+1 |
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ki = MIN(k,Nr) |
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|
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DO j = 1-OLy, sNy+OLy |
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DO i = 1-OLx, sNx+OLx |
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kappaRU(i,j,k) = viscArNr(ki) |
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kappaRV(i,j,k) = viscArNr(ki) |
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ENDDO |
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ENDDO |
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|
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#ifdef ALLOW_KPP |
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IF ( useKPP .AND. k.LE.Nr ) THEN |
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CALL KPP_CALC_VISC( |
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I bi,bj, iMin,iMax,jMin,jMax, k, |
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O kappaRU, kappaRV, |
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I myThid) |
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ENDIF |
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#endif |
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|
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#ifdef ALLOW_PP81 |
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IF ( usePP81 .AND. k.LE.Nr ) THEN |
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CALL PP81_CALC_VISC( |
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I bi,bj, iMin,iMax,jMin,jMax, k, |
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O kappaRU, kappaRV, |
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I myThid) |
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ENDIF |
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#endif |
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|
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#ifdef ALLOW_KL10 |
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IF ( useKL10 .AND. k.LE.Nr ) THEN |
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CALL KL10_CALC_VISC( |
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I bi,bj, iMin,iMax,jMin,jMax, k, |
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O kappaRU, kappaRV, |
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I myThid) |
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ENDIF |
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#endif |
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|
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#ifdef ALLOW_MY82 |
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IF ( useMY82 .AND. k.LE.Nr ) THEN |
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CALL MY82_CALC_VISC( |
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I bi,bj, iMin,iMax,jMin,jMax, k, |
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O kappaRU, kappaRV, |
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I myThid) |
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ENDIF |
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#endif |
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|
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#ifdef ALLOW_GGL90 |
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IF ( useGGL90 .AND. k.LE.Nr ) THEN |
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CALL GGL90_CALC_VISC( |
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I bi,bj, iMin,iMax,jMin,jMax, k, |
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O kappaRU, kappaRV, |
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I myThid) |
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ENDIF |
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#endif |
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|
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IF ( k.EQ.Nr+1 .AND. |
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& ( usePP81 .OR. useKL10 .OR. useMY82 .OR. useGGL90 ) |
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& ) 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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kappaRU(i,j,k) = kappaRU(i,j,ki) |
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kappaRV(i,j,k) = kappaRV(i,j,ki) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C-- end of k loop |
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ENDDO |
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|
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#ifndef EXCLUDE_PCELL_MIX_CODE |
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IF ( interViscAr_pCell ) THEN |
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C-- This is a hack: alter vertical viscosity (instead of changing many S/R) |
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C in order to account for missing hFac in viscous term |
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DO k = 2,Nr |
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km = k - 1 |
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C- account for true distance (including hFac) in vertical gradient |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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IF ( k.GT.kSurfW(i,j,bi,bj) .AND. |
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& k.LE.MIN( kLowC(i,j,bi,bj), kLowC(i-1,j,bi,bj) ) |
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& ) THEN |
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kappaRU(i,j,k) = kappaRU(i,j,k) |
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& *twoRL/(hFacW(i,j,km,bi,bj)+hFacW(i,j,k,bi,bj)) |
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ENDIF |
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ENDDO |
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ENDDO |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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IF ( k.GT.kSurfS(i,j,bi,bj) .AND. |
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& k.LE.MIN( kLowC(i,j,bi,bj), kLowC(i,j-1,bi,bj) ) |
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& ) THEN |
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kappaRV(i,j,k) = kappaRV(i,j,k) |
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& *twoRL/(hFacS(i,j,km,bi,bj)+hFacS(i,j,k,bi,bj)) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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IF ( pCellMix_select.GT.0 ) THEN |
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C-- This is a hack: alter vertical viscosity (instead of changing many S/R) |
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C in order to to increase mixing for too thin surface/bottom partial cell |
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mixSurf = pCellMix_select/10 |
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mixBott = MOD(pCellMix_select,10) |
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DO k = 2,Nr |
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km = k - 1 |
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pC_kFac = 1. |
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IF ( pCellMix_delR.LT.drF(k) ) |
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& pC_kFac = pCellMix_delR*recip_drF(k) |
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|
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C- Increase KappaRU above bottom level: |
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IF ( mixBott.GE.1 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = 0. _d 0 |
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IF ( k.EQ.MIN( kLowC(i,j,bi,bj), kLowC(i-1,j,bi,bj) ) |
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& .AND. k.GT.kSurfW(i,j,bi,bj) ) THEN |
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tmpFac(i,j) = pC_kFac*_recip_hFacW(i,j,k,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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IF ( mixBott.EQ.2 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixBott.EQ.3 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixBott.EQ.4 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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& *tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( mixBott.GE.1 ) THEN |
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C- increase mixing above bottom (by ~(1/hFac)^mixBott) if too thin p-cell |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = MIN( tmpFac(i,j), pCellMix_maxFac ) |
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kappaRU(i,j,k) = MAX( kappaRU(i,j,k), |
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& pCellMix_viscAr(k)*tmpFac(i,j) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C- Increase KappaRV above bottom level: |
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IF ( mixBott.GE.1 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = 0. _d 0 |
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IF ( k.EQ.MIN( kLowC(i,j,bi,bj), kLowC(i,j-1,bi,bj) ) |
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& .AND. k.GT.kSurfS(i,j,bi,bj) ) THEN |
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tmpFac(i,j) = pC_kFac*_recip_hFacS(i,j,k,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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IF ( mixBott.EQ.2 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixBott.EQ.3 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixBott.EQ.4 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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& *tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( mixBott.GE.1 ) THEN |
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C- increase mixing above bottom (by ~(1/hFac)^mixBott) if too thin p-cell |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = MIN( tmpFac(i,j), pCellMix_maxFac ) |
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kappaRV(i,j,k) = MAX( kappaRV(i,j,k), |
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& pCellMix_viscAr(k)*tmpFac(i,j) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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pC_kFac = 1. |
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IF ( pCellMix_delR.LT.drF(km) ) |
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& pC_kFac = pCellMix_delR*recip_drF(km) |
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|
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C- Increase KappaRU below surface level: |
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IF ( mixSurf.GE.1 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = 0. _d 0 |
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IF ( km.EQ.kSurfW(i,j,bi,bj) .AND. |
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& km.LT.MIN( kLowC(i,j,bi,bj), kLowC(i-1,j,bi,bj) ) |
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& ) THEN |
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tmpFac(i,j) = pC_kFac*_recip_hFacW(i,j,km,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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IF ( mixSurf.EQ.2 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixSurf.EQ.3 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixSurf.EQ.4 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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& *tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( mixSurf.GE.1 ) THEN |
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C- increase mixing below surface (by ~(1/hFac)^mixSurf) if too thin p-cell |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = MIN( tmpFac(i,j), pCellMix_maxFac ) |
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kappaRU(i,j,k) = MAX( kappaRU(i,j,k), |
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& pCellMix_viscAr(k)*tmpFac(i,j) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C- Increase KappaRV below surface level: |
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IF ( mixSurf.GE.1 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = 0. _d 0 |
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IF ( km.EQ.kSurfS(i,j,bi,bj) .AND. |
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& km.LT.MIN( kLowC(i,j,bi,bj), kLowC(i,j-1,bi,bj) ) |
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& ) THEN |
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tmpFac(i,j) = pC_kFac*_recip_hFacS(i,j,km,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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IF ( mixSurf.EQ.2 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixSurf.EQ.3 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ELSEIF ( mixSurf.EQ.4 ) THEN |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = tmpFac(i,j)*tmpFac(i,j) |
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& *tmpFac(i,j)*tmpFac(i,j) |
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ENDDO |
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ENDDO |
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ENDIF |
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IF ( mixSurf.GE.1 ) THEN |
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C- increase mixing below surface (by ~(1/hFac)^mixSurf) if too thin p-cell |
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DO j = 2-OLy, sNy+OLy |
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DO i = 2-OLx, sNx+OLx |
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tmpFac(i,j) = MIN( tmpFac(i,j), pCellMix_maxFac ) |
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kappaRV(i,j,k) = MAX( kappaRV(i,j,k), |
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& pCellMix_viscAr(k)*tmpFac(i,j) ) |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C-- end of k loop |
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ENDDO |
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ENDIF |
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#endif /* ndef EXCLUDE_PCELL_MIX_CODE */ |
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|
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RETURN |
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END |
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