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! $Header: /home/cvsroot/LMDZ4/libf/phylmd/aeropt.F,v 1.1.1.1 2004/05/19 12:53:09 lmdzadmin Exp $ |
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! |
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SUBROUTINE aeropt(pplay, paprs, t_seri, msulfate, RHcl, |
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. tau_ae, piz_ae, cg_ae, ai ) |
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c |
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use dimens_m |
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use dimphy |
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use YOMCST |
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IMPLICIT none |
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c |
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c |
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c |
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c |
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c Arguments: |
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c |
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REAL, intent(in):: paprs(klon,klev+1) |
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REAL, intent(in):: pplay(klon,klev), t_seri(klon,klev) |
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REAL msulfate(klon,klev) ! masse sulfate ug SO4/m3 [ug/m^3] |
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REAL RHcl(klon,klev) ! humidite relative ciel clair |
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REAL tau_ae(klon,klev,2) ! epaisseur optique aerosol |
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REAL piz_ae(klon,klev,2) ! single scattering albedo aerosol |
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REAL cg_ae(klon,klev,2) ! asymmetry parameter aerosol |
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REAL ai(klon) ! POLDER aerosol index |
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c |
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c Local |
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c |
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INTEGER i, k, inu |
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INTEGER RH_num, nbre_RH |
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PARAMETER (nbre_RH=12) |
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REAL RH_tab(nbre_RH) |
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REAL RH_MAX, DELTA, rh |
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PARAMETER (RH_MAX=95.) |
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DATA RH_tab/0.,10.,20.,30.,40.,50.,60.,70.,80.,85.,90.,95./ |
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REAL zrho, zdz |
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REAL taue670(klon) ! epaisseur optique aerosol absorption 550 nm |
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REAL taue865(klon) ! epaisseur optique aerosol extinction 865 nm |
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REAL alpha_aer_sulfate(nbre_RH,5) !--unit m2/g SO4 |
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REAL alphasulfate |
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c |
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c Proprietes optiques |
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c |
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REAL alpha_aer(nbre_RH,2) !--unit m2/g SO4 |
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REAL cg_aer(nbre_RH,2) |
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DATA alpha_aer/.500130E+01, .500130E+01, .500130E+01, |
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. .500130E+01, .500130E+01, .616710E+01, |
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. .826850E+01, .107687E+02, .136976E+02, |
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. .162972E+02, .211690E+02, .354833E+02, |
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. .139460E+01, .139460E+01, .139460E+01, |
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. .139460E+01, .139460E+01, .173910E+01, |
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. .244380E+01, .332320E+01, .440120E+01, |
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. .539570E+01, .734580E+01, .136038E+02 / |
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DATA cg_aer/.619800E+00, .619800E+00, .619800E+00, |
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. .619800E+00, .619800E+00, .662700E+00, |
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. .682100E+00, .698500E+00, .712500E+00, |
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. .721800E+00, .734600E+00, .755800E+00, |
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. .545600E+00, .545600E+00, .545600E+00, |
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. .545600E+00, .545600E+00, .583700E+00, |
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. .607100E+00, .627700E+00, .645800E+00, |
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. .658400E+00, .676500E+00, .708500E+00 / |
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DATA alpha_aer_sulfate/ |
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. 4.910,4.910,4.910,4.910,6.547,7.373, |
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. 8.373,9.788,12.167,14.256,17.924,28.433, |
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. 1.453,1.453,1.453,1.453,2.003,2.321, |
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. 2.711,3.282,4.287,5.210,6.914,12.305, |
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. 4.308,4.308,4.308,4.308,5.753,6.521, |
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. 7.449,8.772,11.014,12.999,16.518,26.772, |
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. 3.265,3.265,3.265,3.265,4.388,5.016, |
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. 5.775,6.868,8.745,10.429,13.457,22.538, |
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. 2.116,2.116,2.116,2.116,2.882,3.330, |
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. 3.876,4.670,6.059,7.327,9.650,16.883/ |
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c |
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DO i=1, klon |
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taue670(i)=0.0 |
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taue865(i)=0.0 |
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ENDDO |
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c |
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DO k=1, klev |
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DO i=1, klon |
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if (t_seri(i,k).eq.0) write (*,*) 'aeropt T ',i,k,t_seri(i,k) |
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if (pplay(i,k).eq.0) write (*,*) 'aeropt p ',i,k,pplay(i,k) |
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zrho=pplay(i,k)/t_seri(i,k)/RD ! kg/m3 |
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zdz=(paprs(i,k)-paprs(i,k+1))/zrho/RG ! m |
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rh=MIN(RHcl(i,k)*100.,RH_MAX) |
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RH_num = INT( rh/10. + 1.) |
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IF (rh.LT.0.) STOP 'aeropt: RH < 0 not possible' |
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IF (rh.gt.85.) RH_num=10 |
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IF (rh.gt.90.) RH_num=11 |
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DELTA=(rh-RH_tab(RH_num))/(RH_tab(RH_num+1)-RH_tab(RH_num)) |
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c |
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inu=1 |
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tau_ae(i,k,inu)=alpha_aer(RH_num,inu) + |
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. DELTA*(alpha_aer(RH_num+1,inu)-alpha_aer(RH_num,inu)) |
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tau_ae(i,k,inu)=tau_ae(i,k,inu)*msulfate(i,k)*zdz*1.e-6 |
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piz_ae(i,k,inu)=1.0 |
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cg_ae(i,k,inu)=cg_aer(RH_num,inu) + |
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. DELTA*(cg_aer(RH_num+1,inu)-cg_aer(RH_num,inu)) |
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c |
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inu=2 |
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tau_ae(i,k,inu)=alpha_aer(RH_num,inu) + |
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. DELTA*(alpha_aer(RH_num+1,inu)-alpha_aer(RH_num,inu)) |
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tau_ae(i,k,inu)=tau_ae(i,k,inu)*msulfate(i,k)*zdz*1.e-6 |
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piz_ae(i,k,inu)=1.0 |
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cg_ae(i,k,inu)=cg_aer(RH_num,inu) + |
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. DELTA*(cg_aer(RH_num+1,inu)-cg_aer(RH_num,inu)) |
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cjq |
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cjq for aerosol index |
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c |
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alphasulfate=alpha_aer_sulfate(RH_num,4) + |
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. DELTA*(alpha_aer_sulfate(RH_num+1,4)- |
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. alpha_aer_sulfate(RH_num,4)) !--m2/g |
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c |
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taue670(i)=taue670(i)+ |
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. alphasulfate*msulfate(i,k)*zdz*1.e-6 |
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c |
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alphasulfate=alpha_aer_sulfate(RH_num,5) + |
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. DELTA*(alpha_aer_sulfate(RH_num+1,5)- |
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. alpha_aer_sulfate(RH_num,5)) !--m2/g |
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c |
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taue865(i)=taue865(i)+ |
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. alphasulfate*msulfate(i,k)*zdz*1.e-6 |
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|
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ENDDO |
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ENDDO |
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c |
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DO i=1, klon |
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ai(i)=(-log(MAX(taue670(i),0.0001)/ |
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. MAX(taue865(i),0.0001))/log(670./865.)) * |
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. taue865(i) |
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ENDDO |
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c |
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RETURN |
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END |