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C modified for external_forcing_DIC.F August 1999 |
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CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
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c |
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c modified swd Oct 01 and Feb 02, for use as package for c40_patch1 |
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c modified to use with c44 and ptracers: swd May 2002 |
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c modified to have carbonate and biological influences: swd June 2002 |
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c modified for cfc: swd Sep 2003 |
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C |
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|
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#include "CPP_OPTIONS.h" |
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#include "GCHEM_OPTIONS.h" |
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|
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CStartOfInterFace |
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SUBROUTINE CFC11_FORCING( PTR_CFC11, GCFC11, |
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& bi,bj,imin,imax,jmin,jmax, |
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& myIter,myTime,myThid) |
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|
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C /==========================================================\ |
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C | SUBROUTINE CFC11_FORCING | |
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C | o Calculate the changes to CFC11 through air-sea fluxes | |
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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 "DYNVARS.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 "CFC.h" |
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|
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C == Routine arguments == |
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INTEGER myIter |
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_RL myTime |
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INTEGER myThid |
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_RL PTR_CFC11(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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_RL GCFC11(1-OLx:sNx+OLx,1-OLy:sNy+OLy,Nr) |
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INTEGER bi, bj, imin, imax, jmin, jmax |
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|
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#ifdef ALLOW_PTRACERS |
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#ifdef ALLOW_CFC |
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C == Local variables == |
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_RL SURCFC11(1-OLx:sNx+OLx,1-OLy:sNy+OLy) |
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_RL xintp(1-OLy:sNy+OLy) |
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INTEGER I,J |
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INTEGER myYear, lastYear, thisYear |
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_RL dtinc, aWght, bWght |
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_RL ACFC11north, ACFC11south |
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_RL maxYear |
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_RL a1, a2 |
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_RL yNorth, ySouth |
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|
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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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SURCFC11(i,j)=0.d0 |
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ENDDO |
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ENDDO |
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|
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c find atmospheric CFC |
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myYear=float(myIter-nIter0)*deltaTclock |
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& /(360.d0*24.d0*3600.d0) |
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lastYear=1+int(myYear+0.5) |
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thisYear=lastYear+1 |
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maxYear=cfc_yearend-cfc_yearbeg |
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if (thisYear.lt.maxYear) then |
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dtinc=myYear-float(lastYear-1) |
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aWght=0.5d0+dtinc |
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bWght=1.d0-aWght |
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c IF (bi*bj.eq.1) |
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c &write(0,*) 'myYear = ',myYear,lastYear,dtinc,aWght |
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ACFC11north = ACFC11(lastYear,1)*bWght |
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& + ACFC11(thisYear,1)*aWght |
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ACFC11south = ACFC11(lastYear,2)*bWght |
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& + ACFC11(thisYear,2)*aWght |
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else |
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ACFC11north = ACFC11(thisYear,1) |
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ACFC11south = ACFC11(thisYear,1) |
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endif |
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c print*,'ACFC11north,ACFC11south', ACFC11north,ACFC11south, |
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c & lastYear,thisYear |
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c provide gradient between N and S values |
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#define OCMIP_GRAD |
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#undef STEPH_GRAD |
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c STEPH'S INITIAL VERSION |
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#ifdef STEPH_GRAD |
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DO j=1-OLy,sNy+OLy |
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DO i=1-OLx,sNx+OLx |
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if ((j.gt.int(sNy/2)+3.and.j.le.sNy).or.j.lt.1) then |
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ATMOSCFC11(i,j,bi,bj)=ACFC11north |
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endif |
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if (j.ge.int(sNy/2)-3.and.j.le.int(sNy/2)+3) then |
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a1=(float(j-int(sNy/2)+3)+.5)/7 |
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a2=1.d0-a1 |
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ATMOSCFC11(i,j,bi,bj)=a1*ACFC11south + |
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& a2*ACFC11north |
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endif |
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if ((j.lt.int(sNy/2)-3.and.j.gt.0).or.j.gt.sNy) then |
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ATMOSCFC11(i,j,bi,bj)=ACFC11south |
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endif |
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ENDDO |
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ENDDO |
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#endif |
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c OCMIP VERSION |
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#ifdef OCMIP_GRAD |
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yNorth = 10.0 |
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ySouth = -10.0 |
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DO j=1-OLy,sNy+OLy |
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i=1 |
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IF(yC(i,j,bi,bj) .GE. yNorth) THEN |
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xintp(j) = 1.0 |
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ELSE IF(yC(i,j,bi,bj) .LE. ySouth) THEN |
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xintp(j) = 0.0 |
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ELSE |
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xintp(j) = (yC(i,j,bi,bj) - ySouth)/ |
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& (yNorth - ySouth) |
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ENDIF |
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DO i=1-OLx,sNx+OLx |
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ATMOSCFC11(i,j,bi,bj)= xintp(j) * ACFC11north |
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& + (1.0 - xintp(j))*ACFC11south |
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|
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ENDDO |
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c print*,'QQ cfc11', j, ATMOSCFC11(1,j,bi,bj) |
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ENDDO |
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#endif |
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c cfc11 air-sea interaction |
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CALL CFC11_SURFFORCING( PTR_CFC11, SURCFC11, |
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& bi,bj,imin,imax,jmin,jmax, |
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& myIter,myTime,myThid) |
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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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GCFC11(i,j,1)=GCFC11(i,j,1)+SURCFC11(i,j) |
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ENDDO |
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ENDDO |
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|
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#endif |
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#endif |
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|
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c |
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RETURN |
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END |
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