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C $Header: /u/gcmpack/models/MITgcmUV/pkg/generic_advdiff/gad_c2_adv_r.F,v 1.3 2001/09/20 20:07:06 adcroft Exp $ |
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C $Name: $ |
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#include "GAD_OPTIONS.h" |
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adcroft |
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CBOP |
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C !ROUTINE: GAD_C2_ADV_R |
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C !INTERFACE: ========================================================== |
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SUBROUTINE GAD_C2_ADV_R( |
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I bi,bj,k, |
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I rTrans, |
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I tracer, |
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O wT, |
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I myThid ) |
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C !DESCRIPTION: |
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C Calculates the area integrated vertical flux due to advection of a tracer |
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C using centered second-order interpolation: |
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C \begin{equation*} |
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C F^r_{adv} = W \overline{\theta}^k |
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C \end{equation*} |
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C !USES: =============================================================== |
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IMPLICIT NONE |
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#include "SIZE.h" |
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#include "GRID.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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C !INPUT PARAMETERS: =================================================== |
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C bi,bj :: tile indices |
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C k :: vertical level |
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C rTrans :: vertical volume transport |
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C tracer :: tracer field |
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C myThid :: thread number |
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INTEGER bi,bj,k |
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_RL rTrans(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL tracer(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr,nSx,nSy) |
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INTEGER myThid |
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C !OUTPUT PARAMETERS: ================================================== |
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C wT :: vertical advective flux |
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_RL wT (1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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C !LOCAL VARIABLES: ==================================================== |
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C i,j :: loop indices |
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C km1 :: =k+1 for k<Nr, =Nr for k>=Nr |
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INTEGER i,j,km1 |
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CEOP |
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km1=max(1,k-1) |
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IF ( k.EQ.1 .OR. k.GT.Nr) 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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wT(i,j) = 0. |
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ENDDO |
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ENDDO |
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ELSE |
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DO j=1-Oly,sNy+Oly |
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DO i=1-Olx,sNx+Olx |
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wT(i,j) = maskC(i,j,kM1,bi,bj)* |
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& rTrans(i,j)* |
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& (Tracer(i,j,k,bi,bj)+Tracer(i,j,kM1,bi,bj))*0.5 _d 0 |
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ENDDO |
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ENDDO |
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ENDIF |
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RETURN |
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END |