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contains |
contains |
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SUBROUTINE nuage (paprs, pplay, t, pqlwp, pclc, pcltau, pclemi, pch, pcl, & |
SUBROUTINE nuage (paprs, pplay, t, pqlwp, pclc, pcltau, pclemi, pch, pcl, & |
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pcm, pct, pctlwp, ok_aie, sulfate, sulfate_pi, bl95_b0, bl95_b1, & |
pcm, pct, pctlwp) |
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cldtaupi, re, fl) |
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! From LMDZ4/libf/phylmd/nuage.F, version 1.1.1.1, 2004/05/19 12:53:07 |
! From LMDZ4/libf/phylmd/nuage.F, version 1.1.1.1, 2004/05/19 12:53:07 |
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use dimphy, only: klon, klev |
use dimphy, only: klon, klev |
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use nr_util, only: pi |
use SUPHEC_M, only: rg |
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use SUPHEC_M, only: rd, rg |
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! Author: Z. X. Li (LMD/CNRS) |
! Author: Z. X. Li (LMD/CNRS) |
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! Date: 1993/09/10 |
! Date: 1993/09/10 |
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REAL, intent(inout):: pclc(klon, klev) |
REAL, intent(inout):: pclc(klon, klev) |
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! couverture nuageuse pour le rayonnement (0 \`a 1) |
! couverture nuageuse pour le rayonnement (0 \`a 1) |
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REAL pcltau(klon, klev), pclemi(klon, klev) |
REAL, intent(out):: pcltau(klon, klev) ! \'epaisseur optique des nuages |
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! pcltau--output-R-epaisseur optique des nuages |
real, intent(out):: pclemi(klon, klev) ! \'emissivit\'e des nuages (0 \`a 1) |
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! pclemi--output-R-emissivite des nuages (0 a 1) |
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REAL pch(klon), pcl(klon), pcm(klon), pct(klon), pctlwp(klon) |
REAL pch(klon), pcl(klon), pcm(klon), pct(klon), pctlwp(klon) |
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!jq for the aerosol indirect effect |
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!jq introduced by Johannes Quaas (quaas@lmd.jussieu.fr), 27/11/2003 |
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!jq |
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LOGICAL ok_aie ! Apply AIE or not? |
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! ok_aie--input-L-apply aerosol indirect effect or not |
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REAL sulfate(klon, klev) ! sulfate aerosol mass concentration [ug m-3] |
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! sulfate-input-R-sulfate aerosol mass concentration [um/m^3] |
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REAL, intent(in):: sulfate_pi(klon, klev) ! sulfate aerosol mass concentration [ug m-3] (pre-industrial value) |
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! sulfate_pi-input-R-dito, pre-industrial value |
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REAL bl95_b0, bl95_b1 ! Parameter in B&L 95-Formula |
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! bl95_b0-input-R-a parameter, may be varied for tests (s-sea, l-land) |
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! bl95_b1-input-R-a parameter, may be varied for tests (-"-) |
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REAL cldtaupi(klon, klev) ! pre-industrial cloud opt thickness for diag |
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! cldtaupi-output-R-pre-industrial value of cloud optical thickness, |
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! needed for the diagnostics of the aerosol indirect |
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! radiative forcing (see radlwsw) |
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REAL re(klon, klev) ! cloud droplet effective radius [um] |
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! re------output-R-Cloud droplet effective radius multiplied by fl [um] |
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REAL fl(klon, klev) ! xliq * rneb (denominator to re ; fraction of liquid water clouds within the grid cell) |
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! fl------output-R-Denominator to re, introduced to avoid problems in |
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! the averaging of the output. fl is the fraction of liquid |
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! water clouds within a grid cell |
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! Local: |
! Local: |
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LOGICAL lo |
LOGICAL lo |
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REAL radius, rad_froid, rad_chaud, rad_chau1, rad_chau2 |
REAL radius, rad_froid, rad_chaud, rad_chau1, rad_chau2 |
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PARAMETER (rad_chau1=13.0, rad_chau2=9.0, rad_froid=35.0) |
PARAMETER (rad_chau1=13.0, rad_chau2=9.0, rad_froid=35.0) |
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!cc PARAMETER (rad_chaud=15.0, rad_froid=35.0) |
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! sintex initial PARAMETER (rad_chaud=10.0, rad_froid=30.0) |
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REAL coef, coef_froi, coef_chau |
REAL coef, coef_froi, coef_chau |
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PARAMETER (coef_chau=0.13, coef_froi=0.09) |
PARAMETER (coef_chau=0.13, coef_froi=0.09) |
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REAL seuil_neb, t_glace |
REAL seuil_neb, t_glace |
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INTEGER nexpo ! exponentiel pour glace/eau |
INTEGER nexpo ! exponentiel pour glace/eau |
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PARAMETER (nexpo=6) |
PARAMETER (nexpo=6) |
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REAL cdnc(klon, klev) ! cloud droplet number concentration [m-3] |
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REAL cdnc_pi(klon, klev) ! cloud droplet number concentration [m-3] (pi value) |
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!-------------------------------------------------------------------- |
!-------------------------------------------------------------------- |
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! Calculer l'epaisseur optique et l'emmissivite des nuages |
! Calculer l'epaisseur optique et l'emmissivite des nuages |
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zfice = MIN(MAX(zfice, 0.0), 1.0) |
zfice = MIN(MAX(zfice, 0.0), 1.0) |
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zfice = zfice**nexpo |
zfice = zfice**nexpo |
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IF (ok_aie) THEN |
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! Formula "D" of Boucher and Lohmann, Tellus, 1995 |
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cdnc(i, k) = 10.**(bl95_b0+bl95_b1* & |
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log(MAX(sulfate(i, k), 1.e-4))/log(10.))*1.e6 !-m-3 |
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! Cloud droplet number concentration (CDNC) is restricted |
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! to be within [20, 1000 cm^3] |
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cdnc(i, k)=MIN(1000.e6, MAX(20.e6, cdnc(i, k))) |
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cdnc_pi(i, k) = 10.**(bl95_b0+bl95_b1* & |
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log(MAX(sulfate_pi(i, k), 1.e-4))/log(10.))*1.e6 !-m-3 |
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cdnc_pi(i, k)=MIN(1000.e6, MAX(20.e6, cdnc_pi(i, k))) |
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! air density: pplay(i, k) / (RD * zT(i, k)) |
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! factor 1.1: derive effective radius from volume-mean radius |
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! factor 1000 is the water density |
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! _chaud means that this is the CDR for liquid water clouds |
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rad_chaud = & |
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1.1 * ((pqlwp(i, k) * pplay(i, k) / (RD * T(i, k))) & |
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/ (4./3. * PI * 1000. * cdnc(i, k)))**(1./3.) |
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! Convert to um. CDR shall be at least 3 um. |
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rad_chaud = MAX(rad_chaud*1.e6, 3.) |
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! For output diagnostics |
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! Cloud droplet effective radius [um] |
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! we multiply here with f * xl (fraction of liquid water |
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! clouds in the grid cell) to avoid problems in the |
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! averaging of the output. |
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! In the output of IOIPSL, derive the real cloud droplet |
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! effective radius as re/fl |
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fl(i, k) = pclc(i, k)*(1.-zfice) |
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re(i, k) = rad_chaud*fl(i, k) |
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! Pre-industrial cloud opt thickness |
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! "radius" is calculated as rad_chaud above (plus the |
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! ice cloud contribution) but using cdnc_pi instead of |
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! cdnc. |
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radius = MAX(1.1e6 * ((pqlwp(i, k)*pplay(i, k)/(RD*T(i, k))) & |
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/ (4./3.*PI*1000.*cdnc_pi(i, k)))**(1./3.), & |
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3.) * (1.-zfice) + rad_froid * zfice |
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cldtaupi(i, k) = 3.0/2.0 * zflwp / radius |
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END IF ! ok_aie |
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radius = rad_chaud * (1.-zfice) + rad_froid * zfice |
radius = rad_chaud * (1.-zfice) + rad_froid * zfice |
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coef = coef_chau * (1.-zfice) + coef_froi * zfice |
coef = coef_chau * (1.-zfice) + coef_froi * zfice |
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pcltau(i, k) = 3.0/2.0 * zflwp / radius |
pcltau(i, k) = 3.0/2.0 * zflwp / radius |
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IF (lo) pclc(i, k) = 0.0 |
IF (lo) pclc(i, k) = 0.0 |
76 |
IF (lo) pcltau(i, k) = 0.0 |
IF (lo) pcltau(i, k) = 0.0 |
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IF (lo) pclemi(i, k) = 0.0 |
IF (lo) pclemi(i, k) = 0.0 |
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IF (.NOT.ok_aie) cldtaupi(i, k)=pcltau(i, k) |
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78 |
END DO |
END DO |
79 |
END DO |
END DO |
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