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C $Header: /u/gcmpack/MITgcm/model/src/convect.F,v 1.20 2003/10/09 04:19:18 edhill 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: CONVECT |
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C !INTERFACE: |
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SUBROUTINE CONVECT( bi, bj, iMin, iMax, jMin, jMax, K, |
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& rhoKm1, rhoKp1, ConvectCount, |
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& myTime,myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE CONVECT |
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C | o Does vertical mixing of unstable water columns |
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C *==========================================================* |
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C | Uses simple homgenisation scheme between unstable |
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C | layers. |
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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 data == |
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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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#ifdef ALLOW_PASSIVE_TRACER |
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#include "TR1.h" |
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#endif |
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EXTERNAL DIFFERENT_MULTIPLE |
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LOGICAL DIFFERENT_MULTIPLE |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C == Routine arguments == |
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C bi,bj,iMin,iMax,jMin,jMax,K - Loop counters |
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C rhoKm1 - rho in layer above |
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C rhoKp1 - rho in layer below |
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C myTime - Current time in simulation |
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C myIter - Current iteration in simulation |
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C myThid - Thread number of this instance of S/R CONVECT |
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INTEGER bi,bj,iMin,iMax,jMin,jMax,K |
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_RL rhoKm1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL rhoKp1(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL ConvectCount(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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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 i,j :: Loop counter |
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C tMix :: Temp. for calculation of mixed theta. |
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C sMix :: Temp. for calculation of mixed salt. |
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C tr1Mix :: Temp. for calculation of mixed tracer. |
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C dSum :: Temp. for layer thicknesses |
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INTEGER i,j |
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_RL tMix(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL sMix(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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#ifdef ALLOW_PASSIVE_TRACER |
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ceh3 needs an IF ( usePASSIVE_TRACER ) THEN |
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_RL tr1Mix(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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#endif |
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_RL dSum(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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CEOP |
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|
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C-- Check to see if should convect now |
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IF ( DIFFERENT_MULTIPLE(cAdjFreq,myTime,myTime-deltaTClock) ) THEN |
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|
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C-- Calculate heat content of two level column |
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DO j=jMin,jmax |
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DO i=iMin,imax |
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tMix(i,j) = theta(i,j,k-1,bi,bj) |
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& *_hFacC(i,j,k-1,bi,bj)*drF(k-1) |
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& +theta(i,j,k,bi,bj) |
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& *_hFacC(i,j,k,bi,bj)*drF(k) |
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sMix(i,j) = salt (i,j,k-1,bi,bj) |
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& *_hFacC(i,j,k-1,bi,bj)*drF(k-1) |
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& +salt (i,j,k,bi,bj) |
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& *_hFacC(i,j,k,bi,bj)*drF(k) |
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#ifdef ALLOW_PASSIVE_TRACER |
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ceh3 needs an IF ( usePASSIVE_TRACER ) THEN |
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tr1Mix(i,j) = Tr1 (i,j,k-1,bi,bj) |
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& *_hFacC(i,j,k-1,bi,bj)*drF(k-1) |
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& +Tr1 (i,j,k,bi,bj) |
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& *_hFacC(i,j,k,bi,bj)*drF(k) |
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#endif |
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dSum(i,j) = _hFacC(i,j,k-1,bi,bj)*drF(k-1) |
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& +_hFacC(i,j,k,bi,bj)*drF(k) |
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ENDDO |
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ENDDO |
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|
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C-- Where statically unstable, mix the heat and salt |
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DO j=jMin,jmax |
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DO i=iMin,imax |
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IF ( _hFacC(i,j,k,bi,bj) .GT. 0. .AND. |
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& (rhokm1(i,j)-rhokp1(i,j))*rkFac*gravitySign .LT. 0. |
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& ) THEN |
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theta(i,j,k-1,bi,bj) = tMix(i,j)/dSum(i,j) |
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theta(i,j,k ,bi,bj) = tMix(i,j)/dSum(i,j) |
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salt(i,j,k-1,bi,bj) = sMix(i,j)/dSum(i,j) |
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salt(i,j,k ,bi,bj) = sMix(i,j)/dSum(i,j) |
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#ifdef ALLOW_PASSIVE_TRACER |
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ceh3 needs an IF ( usePASSIVE_TRACER ) THEN |
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Tr1(i,j,k-1,bi,bj) = Tr1Mix(i,j)/dSum(i,j) |
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Tr1(i,j,k ,bi,bj) = Tr1Mix(i,j)/dSum(i,j) |
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#endif |
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ConvectCount(i,j,k) = ConvectCount(i,j,k) + 1. |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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ENDIF |
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|
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RETURN |
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END |
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