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C $Header: /u/gcmpack/models/MITgcmUV/model/src/calc_diffusivity.F,v 1.8 1999/05/18 18:01:12 adcroft Exp $ |
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#include "CPP_OPTIONS.h" |
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|
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CStartOfInterFace |
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SUBROUTINE CALC_DIFFUSIVITY( |
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I bi,bj,iMin,iMax,jMin,jMax,K, |
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I maskC,maskUp,KapGM,K33, |
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O KappaRT,KappaRS,KappaRU,KappaRV, |
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I myThid) |
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|
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C /==========================================================\ |
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C | SUBROUTINE CALC_DIFFUSIVITY | |
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C | o Calculate net diffusivity | |
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C \==========================================================/ |
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IMPLICIT NONE |
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|
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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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#ifdef ALLOW_KPP |
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#include "KPPMIX.h" |
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#endif |
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|
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C == Routine arguments == |
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C bi, bj, iMin, iMax, jMin, jMax - Range of points for which calculation |
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C maskC - land/water mask for tracer points |
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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 CALC_COMMON_FACTORS |
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C |
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INTEGER bi,bj,iMin,iMax,jMin,jMax,K |
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_RS maskC(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RS maskUp(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL KapGM(1-Olx:sNx+Olx,1-Oly:sNy+Oly) |
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_RL K33(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRT(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRS(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRU(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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_RL KappaRV(1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr) |
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INTEGER myThid |
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CEndOfInterface |
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|
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C == Local variables == |
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C I, J, K - Loop counters |
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INTEGER i,j |
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|
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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KappaRT(i,j,k) = maskC(i,j)*maskUp(i,j)* |
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& ( |
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& KappaRT(i,j,k) |
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#ifdef ALLOW_KPP |
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& + KPPdiffKzT(i,j,k,bi,bj) |
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#else |
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& + diffKrT |
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#endif |
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& + KapGM(i,j)*K33(i,j,k) |
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& ) |
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ENDDO |
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ENDDO |
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|
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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KappaRS(i,j,k) = maskC(i,j)*maskUp(i,j)* |
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& ( |
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& KappaRS(i,j,k) |
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#ifdef ALLOW_KPP |
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& + KPPdiffKzS(i,j,k,bi,bj) |
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#else |
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& + diffKrS |
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#endif |
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& + KapGM(i,j)*K33(i,j,k) |
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& ) |
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ENDDO |
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ENDDO |
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|
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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#ifdef ALLOW_KPP |
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Ckpp interpolate KPPviscAz from "t-grid" to "u-grid" |
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KappaRU(i,j,k) = |
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& _maskW(i,j,k,bi,bj)*maskUp(i,j)*maskUp(i-1,j)* |
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& ( KPPviscAz(i,j,k,bi,bj) + KPPviscAz(i-1,j,k,bi,bj) )*0.5 |
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#else |
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KappaRU(i,j,k) = viscAr |
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#endif |
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ENDDO |
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ENDDO |
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|
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DO j=jMin,jMax |
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DO i=iMin,iMax |
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#ifdef ALLOW_KPP |
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Ckpp interpolate KPPviscAz from "t-grid" to "v-grid" |
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KappaRV(i,j,k) = |
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& _maskS(i,j,k,bi,bj)*maskUp(i,j)*maskUp(i,j-1)* |
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& ( KPPviscAz(i,j,k,bi,bj)+KPPviscAz(i,j-1,k,bi,bj) )*0.5 |
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#else |
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KappaRV(i,j,k) = viscAr |
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#endif |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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