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C $Header: /u/gcmpack/MITgcm/pkg/ptracers/ptracers_calc_wsurf_tr.F,v 1.3 2016/08/23 12:25:24 mlosch Exp $ |
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C $Name: $ |
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|
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#include "PTRACERS_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: PTRACERS_CALC_WSURF_TR |
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C !INTERFACE: |
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SUBROUTINE PTRACERS_CALC_WSURF_TR(wVelFld, |
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I myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE CALC_WSURF_TR |
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C | o Compute a correction for the source/sink of tracer |
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C | due to the linear free surface. |
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C | o The source/sink results from W*Tr not summing to |
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C | zero at the free surface. |
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C | o Here, we compute an area-integrated correction |
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C | to be applied in biogeochemistry packages. |
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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 "GRID.h" |
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#include "SURFACE.h" |
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#include "PTRACERS_SIZE.h" |
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#include "PTRACERS_PARAMS.h" |
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#include "PTRACERS_FIELDS.h" |
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|
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C !INPUT PARAMETERS: |
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C wvelFld :: vertical velocity field |
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C myTime :: Current time in simulation |
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C myIter :: Current iteration number in simulation |
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C myThid :: Thread number for this instance of the routine. |
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_RL wVelFld (1-Olx:sNx+Olx,1-Oly:sNy+Oly,Nr,nSx,nSy) |
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_RL myTime |
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INTEGER myIter |
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INTEGER myThid |
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CEOP |
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|
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C !LOCAL VARIABLES: |
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INTEGER i,j,bi,bj,ks,itr |
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_RL wT_Tile(nSx,nSy,PTRACERS_num) |
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_RL wT_Mean(PTRACERS_num) |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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DO itr=1,PTRACERS_numInUse |
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totSurfCorPTr(iTr) = 0.0 _d 0 |
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meanSurfCorPTr(iTr) = 0.0 _d 0 |
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wT_mean(iTr) = 0.0 _d 0 |
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ENDDO |
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|
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C-- compute per-tile sums |
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DO bj=myByLo(myThid), myByHi(myThid) |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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DO itr=1,PTRACERS_numInUse |
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wT_Tile(bi,bj,itr) = 0. |
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DO j=1,sNy |
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DO i=1,sNx |
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ks = ksurfC(i,j,bi,bj) |
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IF (ks.LE.Nr) THEN |
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wT_Tile(bi,bj,itr) = wT_Tile(bi,bj,itr) |
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& + rA(i,j,bi,bj)*wVelFld(i,j,ks,bi,bj) |
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& *ptracer(i,j,ks,bi,bj,iTr) |
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ENDIF |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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C-- sum over tiles |
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DO itr=1,PTRACERS_numInUse |
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CALL GLOBAL_SUM_TILE_RL( wT_Tile(1,1,itr), wT_Mean(iTr), |
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& myThid ) |
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totSurfCorPTr(iTr) = wT_Mean(iTr) |
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ENDDO |
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|
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IF ( globalArea.GT.0. ) THEN |
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_BEGIN_MASTER( myThid ) |
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DO itr=1,PTRACERS_numInUse |
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meanSurfCorPTr(iTr) = wT_Mean(iTr) / globalArea |
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ENDDO |
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_END_MASTER( myThid ) |
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ENDIF |
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|
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_BARRIER |
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|
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RETURN |
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END |
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