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! $Header: /home/cvsroot/LMDZ4/libf/phylmd/fisrtilp.F,v 1.2 2004/11/09 16:55:40 lmdzadmin Exp $ |
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SUBROUTINE fisrtilp(dtime,paprs,pplay,t,q,ptconv,ratqs, |
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s d_t, d_q, d_ql, rneb, radliq, rain, snow, |
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s pfrac_impa, pfrac_nucl, pfrac_1nucl, |
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s frac_impa, frac_nucl, |
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s prfl, psfl, rhcl) |
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c |
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use dimens_m |
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use dimphy |
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use tracstoke |
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use YOMCST |
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use yoethf |
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use fcttre |
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use comfisrtilp |
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IMPLICIT none |
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c====================================================================== |
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c Auteur(s): Z.X. Li (LMD/CNRS) |
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c Date: le 20 mars 1995 |
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c Objet: condensation et precipitation stratiforme. |
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c schema de nuage |
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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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guez |
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REAL, intent(in):: dtime ! intervalle du temps (s) |
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guez |
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REAL, intent(in):: paprs(klon,klev+1) ! pression a inter-couche |
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guez |
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REAL, intent(in):: pplay(klon,klev) ! pression au milieu de couche |
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guez |
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REAL t(klon,klev) ! temperature (K) |
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REAL q(klon,klev) ! humidite specifique (kg/kg) |
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REAL d_t(klon,klev) ! incrementation de la temperature (K) |
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REAL d_q(klon,klev) ! incrementation de la vapeur d'eau |
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REAL d_ql(klon,klev) ! incrementation de l'eau liquide |
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REAL rneb(klon,klev) ! fraction nuageuse |
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REAL radliq(klon,klev) ! eau liquide utilisee dans rayonnements |
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REAL rhcl(klon,klev) ! humidite relative en ciel clair |
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REAL rain(klon) ! pluies (mm/s) |
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REAL snow(klon) ! neige (mm/s) |
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REAL prfl(klon,klev+1) ! flux d'eau precipitante aux interfaces (kg/m2/s) |
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REAL psfl(klon,klev+1) ! flux d'eau precipitante aux interfaces (kg/m2/s) |
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cAA |
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c Coeffients de fraction lessivee : pour OFF-LINE |
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c |
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REAL pfrac_nucl(klon,klev) |
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REAL pfrac_1nucl(klon,klev) |
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REAL pfrac_impa(klon,klev) |
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c |
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c Fraction d'aerosols lessivee par impaction et par nucleation |
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c POur ON-LINE |
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c |
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REAL frac_impa(klon,klev) |
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REAL frac_nucl(klon,klev) |
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real zct(klon),zcl(klon) |
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cAA |
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c |
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c Options du programme: |
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c |
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REAL seuil_neb ! un nuage existe vraiment au-dela |
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PARAMETER (seuil_neb=0.001) |
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INTEGER ninter ! sous-intervals pour la precipitation |
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PARAMETER (ninter=5) |
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LOGICAL evap_prec ! evaporation de la pluie |
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PARAMETER (evap_prec=.TRUE.) |
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REAL ratqs(klon,klev) ! determine la largeur de distribution de vapeur |
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logical ptconv(klon,klev) ! determine la largeur de distribution de vapeur |
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real zpdf_sig(klon),zpdf_k(klon),zpdf_delta(klon) |
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real Zpdf_a(klon),zpdf_b(klon),zpdf_e1(klon),zpdf_e2(klon) |
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real erf |
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c |
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LOGICAL cpartiel ! condensation partielle |
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PARAMETER (cpartiel=.TRUE.) |
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REAL t_coup |
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PARAMETER (t_coup=234.0) |
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c |
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c Variables locales: |
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c |
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INTEGER i, k, n, kk |
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REAL zqs(klon), zdqs(klon), zdelta, zcor, zcvm5 |
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REAL zrfl(klon), zrfln(klon), zqev, zqevt |
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REAL zoliq(klon), zcond(klon), zq(klon), zqn(klon), zdelq |
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REAL ztglace, zt(klon) |
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INTEGER nexpo ! exponentiel pour glace/eau |
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REAL zdz(klon),zrho(klon),ztot(klon), zrhol(klon) |
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REAL zchau(klon),zfroi(klon),zfice(klon),zneb(klon) |
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c |
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LOGICAL appel1er |
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SAVE appel1er |
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c |
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c--------------------------------------------------------------- |
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c |
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cAA Variables traceurs: |
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cAA Provisoire !!! Parametres alpha du lessivage |
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guez |
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cAA A priori on a 4 scavenging numbers possibles |
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guez |
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c |
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REAL a_tr_sca(4) |
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save a_tr_sca |
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c |
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c Variables intermediaires |
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c |
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REAL zalpha_tr |
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REAL zfrac_lessi |
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REAL zprec_cond(klon) |
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cAA |
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REAL zmair, zcpair, zcpeau |
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C Pour la conversion eau-neige |
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REAL zlh_solid(klon), zm_solid |
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cIM |
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INTEGER klevm1 |
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c--------------------------------------------------------------- |
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c |
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c Fonctions en ligne: |
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c |
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REAL fallvs,fallvc ! vitesse de chute pour crystaux de glace |
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REAL zzz |
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fallvc (zzz) = 3.29/2.0 * ((zzz)**0.16) * ffallv_con |
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fallvs (zzz) = 3.29/2.0 * ((zzz)**0.16) * ffallv_lsc |
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c |
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DATA appel1er /.TRUE./ |
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cym |
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zdelq=0.0 |
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IF (appel1er) THEN |
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c |
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PRINT*, 'fisrtilp, ninter:', ninter |
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PRINT*, 'fisrtilp, evap_prec:', evap_prec |
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PRINT*, 'fisrtilp, cpartiel:', cpartiel |
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IF (ABS(dtime/FLOAT(ninter)-360.0).GT.0.001) THEN |
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PRINT*, 'fisrtilp: Ce n est pas prevu, voir Z.X.Li', dtime |
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PRINT*, 'Je prefere un sous-intervalle de 6 minutes' |
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c stop 1 |
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ENDIF |
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appel1er = .FALSE. |
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c |
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cAA initialiation provisoire |
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a_tr_sca(1) = -0.5 |
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a_tr_sca(2) = -0.5 |
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a_tr_sca(3) = -0.5 |
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a_tr_sca(4) = -0.5 |
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c |
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cAA Initialisation a 1 des coefs des fractions lessivees |
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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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pfrac_nucl(i,k)=1. |
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pfrac_1nucl(i,k)=1. |
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pfrac_impa(i,k)=1. |
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ENDDO |
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ENDDO |
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ENDIF ! test sur appel1er |
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c |
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cMAf Initialisation a 0 de zoliq |
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DO i = 1, klon |
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zoliq(i)=0. |
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ENDDO |
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c Determiner les nuages froids par leur temperature |
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c nexpo regle la raideur de la transition eau liquide / eau glace. |
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c |
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ztglace = RTT - 15.0 |
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nexpo = 6 |
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ccc nexpo = 1 |
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c |
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c Initialiser les sorties: |
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c |
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DO k = 1, klev+1 |
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DO i = 1, klon |
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prfl(i,k) = 0.0 |
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psfl(i,k) = 0.0 |
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ENDDO |
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ENDDO |
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DO k = 1, klev |
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DO i = 1, klon |
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d_t(i,k) = 0.0 |
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d_q(i,k) = 0.0 |
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d_ql(i,k) = 0.0 |
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rneb(i,k) = 0.0 |
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radliq(i,k) = 0.0 |
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frac_nucl(i,k) = 1. |
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frac_impa(i,k) = 1. |
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ENDDO |
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ENDDO |
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DO i = 1, klon |
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rain(i) = 0.0 |
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snow(i) = 0.0 |
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ENDDO |
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c |
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c Initialiser le flux de precipitation a zero |
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c |
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DO i = 1, klon |
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zrfl(i) = 0.0 |
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zneb(i) = seuil_neb |
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ENDDO |
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c |
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c |
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cAA Pour plus de securite |
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zalpha_tr = 0. |
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zfrac_lessi = 0. |
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cAA---------------------------------------------------------- |
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c |
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c Boucle verticale (du haut vers le bas) |
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c |
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cIM : klevm1 |
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klevm1=klev-1 |
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DO 9999 k = klev, 1, -1 |
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c |
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cAA---------------------------------------------------------- |
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c |
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DO i = 1, klon |
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zt(i)=t(i,k) |
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zq(i)=q(i,k) |
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ENDDO |
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c |
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c Calculer la varition de temp. de l'air du a la chaleur sensible |
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C transporter par la pluie. |
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C Il resterait a rajouter cet effet de la chaleur sensible sur les |
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C flux de surface, du a la diff. de temp. entre le 1er niveau et la |
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C surface. |
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C |
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DO i = 1, klon |
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cIM |
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IF(k.LE.klevm1) THEN |
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zmair=(paprs(i,k)-paprs(i,k+1))/RG |
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zcpair=RCPD*(1.0+RVTMP2*zq(i)) |
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zcpeau=RCPD*RVTMP2 |
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zt(i) = ( (t(i,k+1)+d_t(i,k+1))*zrfl(i)*dtime*zcpeau |
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$ + zmair*zcpair*zt(i) ) |
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$ / (zmair*zcpair + zrfl(i)*dtime*zcpeau) |
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CC WRITE (6,*) 'cppluie ', zt(i)-(t(i,k+1)+d_t(i,k+1)) |
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ENDIF |
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ENDDO |
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c |
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c |
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c Calculer l'evaporation de la precipitation |
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c |
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IF (evap_prec) THEN |
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DO i = 1, klon |
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IF (zrfl(i) .GT.0.) THEN |
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IF (thermcep) THEN |
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zdelta=MAX(0.,SIGN(1.,RTT-zt(i))) |
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zqs(i)= R2ES*FOEEW(zt(i),zdelta)/pplay(i,k) |
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zqs(i)=MIN(0.5,zqs(i)) |
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zcor=1./(1.-RETV*zqs(i)) |
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zqs(i)=zqs(i)*zcor |
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ELSE |
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IF (zt(i) .LT. t_coup) THEN |
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zqs(i) = qsats(zt(i)) / pplay(i,k) |
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ELSE |
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zqs(i) = qsatl(zt(i)) / pplay(i,k) |
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ENDIF |
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ENDIF |
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zqev = MAX (0.0, (zqs(i)-zq(i))*zneb(i) ) |
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zqevt = coef_eva * (1.0-zq(i)/zqs(i)) * SQRT(zrfl(i)) |
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. * (paprs(i,k)-paprs(i,k+1))/pplay(i,k)*zt(i)*RD/RG |
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zqevt = MAX(0.0,MIN(zqevt,zrfl(i))) |
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. * RG*dtime/(paprs(i,k)-paprs(i,k+1)) |
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zqev = MIN (zqev, zqevt) |
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zrfln(i) = zrfl(i) - zqev*(paprs(i,k)-paprs(i,k+1)) |
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. /RG/dtime |
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c pour la glace, on réévapore toute la précip dans la couche du dessous |
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c la glace venant de la couche du dessus est simplement dans la couche |
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c du dessous. |
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IF (zt(i) .LT. t_coup.and.reevap_ice) zrfln(i)=0. |
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zq(i) = zq(i) - (zrfln(i)-zrfl(i)) |
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. * (RG/(paprs(i,k)-paprs(i,k+1)))*dtime |
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zt(i) = zt(i) + (zrfln(i)-zrfl(i)) |
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. * (RG/(paprs(i,k)-paprs(i,k+1)))*dtime |
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. * RLVTT/RCPD/(1.0+RVTMP2*zq(i)) |
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zrfl(i) = zrfln(i) |
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ENDIF |
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ENDDO |
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ENDIF |
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c |
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c Calculer Qs et L/Cp*dQs/dT: |
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c |
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IF (thermcep) THEN |
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DO i = 1, klon |
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zdelta = MAX(0.,SIGN(1.,RTT-zt(i))) |
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zcvm5 = R5LES*RLVTT*(1.-zdelta) + R5IES*RLSTT*zdelta |
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zcvm5 = zcvm5 /RCPD/(1.0+RVTMP2*zq(i)) |
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zqs(i) = R2ES*FOEEW(zt(i),zdelta)/pplay(i,k) |
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zqs(i) = MIN(0.5,zqs(i)) |
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zcor = 1./(1.-RETV*zqs(i)) |
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zqs(i) = zqs(i)*zcor |
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zdqs(i) = FOEDE(zt(i),zdelta,zcvm5,zqs(i),zcor) |
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ENDDO |
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ELSE |
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DO i = 1, klon |
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IF (zt(i).LT.t_coup) THEN |
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zqs(i) = qsats(zt(i))/pplay(i,k) |
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zdqs(i) = dqsats(zt(i),zqs(i)) |
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ELSE |
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zqs(i) = qsatl(zt(i))/pplay(i,k) |
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zdqs(i) = dqsatl(zt(i),zqs(i)) |
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ENDIF |
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ENDDO |
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ENDIF |
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c |
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c Determiner la condensation partielle et calculer la quantite |
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c de l'eau condensee: |
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c |
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IF (cpartiel) THEN |
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c print*,'Dans partiel k=',k |
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c |
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c Calcul de l'eau condensee et de la fraction nuageuse et de l'eau |
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c nuageuse a partir des PDF de Sandrine Bony. |
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c rneb : fraction nuageuse |
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c zqn : eau totale dans le nuage |
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c zcond : eau condensee moyenne dans la maille. |
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c on prend en compte le réchauffement qui diminue la partie condensee |
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c |
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c Version avec les raqts |
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if (iflag_pdf.eq.0) then |
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do i=1,klon |
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zdelq = min(ratqs(i,k),0.99) * zq(i) |
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rneb(i,k) = (zq(i)+zdelq-zqs(i)) / (2.0*zdelq) |
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zqn(i) = (zq(i)+zdelq+zqs(i))/2.0 |
| 334 |
|
|
enddo |
| 335 |
|
|
|
| 336 |
|
|
else |
| 337 |
|
|
c |
| 338 |
|
|
c Version avec les nouvelles PDFs. |
| 339 |
|
|
do i=1,klon |
| 340 |
|
|
if(zq(i).lt.1.e-15) then |
| 341 |
|
|
CC Lionel GUEZ print*,'ZQ(',i,',',k,')=',zq(i) |
| 342 |
|
|
zq(i)=1.e-15 |
| 343 |
|
|
endif |
| 344 |
|
|
enddo |
| 345 |
|
|
do i=1,klon |
| 346 |
|
|
zpdf_sig(i)=ratqs(i,k)*zq(i) |
| 347 |
|
|
zpdf_k(i)=-sqrt(log(1.+(zpdf_sig(i)/zq(i))**2)) |
| 348 |
|
|
zpdf_delta(i)=log(zq(i)/zqs(i)) |
| 349 |
|
|
zpdf_a(i)=zpdf_delta(i)/(zpdf_k(i)*sqrt(2.)) |
| 350 |
|
|
zpdf_b(i)=zpdf_k(i)/(2.*sqrt(2.)) |
| 351 |
|
|
zpdf_e1(i)=zpdf_a(i)-zpdf_b(i) |
| 352 |
|
|
zpdf_e1(i)=sign(min(abs(zpdf_e1(i)),5.),zpdf_e1(i)) |
| 353 |
|
|
zpdf_e1(i)=1.-erf(zpdf_e1(i)) |
| 354 |
|
|
zpdf_e2(i)=zpdf_a(i)+zpdf_b(i) |
| 355 |
|
|
zpdf_e2(i)=sign(min(abs(zpdf_e2(i)),5.),zpdf_e2(i)) |
| 356 |
|
|
zpdf_e2(i)=1.-erf(zpdf_e2(i)) |
| 357 |
|
|
if (zpdf_e1(i).lt.1.e-10) then |
| 358 |
|
|
rneb(i,k)=0. |
| 359 |
|
|
zqn(i)=zqs(i) |
| 360 |
|
|
else |
| 361 |
|
|
rneb(i,k)=0.5*zpdf_e1(i) |
| 362 |
|
|
zqn(i)=zq(i)*zpdf_e2(i)/zpdf_e1(i) |
| 363 |
|
|
endif |
| 364 |
|
|
|
| 365 |
|
|
enddo |
| 366 |
|
|
|
| 367 |
|
|
endif ! iflag_pdf |
| 368 |
|
|
|
| 369 |
|
|
do i=1,klon |
| 370 |
|
|
IF (rneb(i,k) .LE. 0.0) zqn(i) = 0.0 |
| 371 |
|
|
IF (rneb(i,k) .GE. 1.0) zqn(i) = zq(i) |
| 372 |
|
|
rneb(i,k) = MAX(0.0,MIN(1.0,rneb(i,k))) |
| 373 |
|
|
c zcond(i) = MAX(0.0,zqn(i)-zqs(i))*rneb(i,k)/(1.+zdqs(i)) |
| 374 |
|
|
c On ne divise pas par 1+zdqs pour forcer a avoir l'eau predite par |
| 375 |
|
|
c la convection. |
| 376 |
|
|
c ATTENTION !!! Il va falloir verifier tout ca. |
| 377 |
|
|
zcond(i) = MAX(0.0,zqn(i)-zqs(i))*rneb(i,k) |
| 378 |
|
|
c print*,'ZDQS ',zdqs(i) |
| 379 |
|
|
c--Olivier |
| 380 |
|
|
rhcl(i,k)=(zqs(i)+zq(i)-zdelq)/2./zqs(i) |
| 381 |
|
|
IF (rneb(i,k) .LE. 0.0) rhcl(i,k)=zq(i)/zqs(i) |
| 382 |
|
|
IF (rneb(i,k) .GE. 1.0) rhcl(i,k)=1.0 |
| 383 |
|
|
c--fin |
| 384 |
|
|
ENDDO |
| 385 |
|
|
ELSE |
| 386 |
|
|
DO i = 1, klon |
| 387 |
|
|
IF (zq(i).GT.zqs(i)) THEN |
| 388 |
|
|
rneb(i,k) = 1.0 |
| 389 |
|
|
ELSE |
| 390 |
|
|
rneb(i,k) = 0.0 |
| 391 |
|
|
ENDIF |
| 392 |
|
|
zcond(i) = MAX(0.0,zq(i)-zqs(i))/(1.+zdqs(i)) |
| 393 |
|
|
ENDDO |
| 394 |
|
|
ENDIF |
| 395 |
|
|
c |
| 396 |
|
|
DO i = 1, klon |
| 397 |
|
|
zq(i) = zq(i) - zcond(i) |
| 398 |
|
|
c zt(i) = zt(i) + zcond(i) * RLVTT/RCPD |
| 399 |
|
|
zt(i) = zt(i) + zcond(i) * RLVTT/RCPD/(1.0+RVTMP2*zq(i)) |
| 400 |
|
|
ENDDO |
| 401 |
|
|
c |
| 402 |
|
|
c Partager l'eau condensee en precipitation et eau liquide nuageuse |
| 403 |
|
|
c |
| 404 |
|
|
DO i = 1, klon |
| 405 |
|
|
IF (rneb(i,k).GT.0.0) THEN |
| 406 |
|
|
zoliq(i) = zcond(i) |
| 407 |
|
|
zrho(i) = pplay(i,k) / zt(i) / RD |
| 408 |
|
|
zdz(i) = (paprs(i,k)-paprs(i,k+1)) / (zrho(i)*RG) |
| 409 |
|
|
zfice(i) = 1.0 - (zt(i)-ztglace) / (273.13-ztglace) |
| 410 |
|
|
zfice(i) = MIN(MAX(zfice(i),0.0),1.0) |
| 411 |
|
|
zfice(i) = zfice(i)**nexpo |
| 412 |
|
|
zneb(i) = MAX(rneb(i,k), seuil_neb) |
| 413 |
|
|
radliq(i,k) = zoliq(i)/FLOAT(ninter+1) |
| 414 |
|
|
ENDIF |
| 415 |
|
|
ENDDO |
| 416 |
|
|
c |
| 417 |
|
|
DO n = 1, ninter |
| 418 |
|
|
DO i = 1, klon |
| 419 |
|
|
IF (rneb(i,k).GT.0.0) THEN |
| 420 |
|
|
zrhol(i) = zrho(i) * zoliq(i) / zneb(i) |
| 421 |
|
|
|
| 422 |
|
|
if (ptconv(i,k)) then |
| 423 |
|
|
zcl(i)=cld_lc_con |
| 424 |
|
|
zct(i)=1./cld_tau_con |
| 425 |
|
|
else |
| 426 |
|
|
zcl(i)=cld_lc_lsc |
| 427 |
|
|
zct(i)=1./cld_tau_lsc |
| 428 |
|
|
endif |
| 429 |
|
|
c quantité d'eau à élminier. |
| 430 |
|
|
zchau(i) = zct(i)*dtime/FLOAT(ninter) * zoliq(i) |
| 431 |
|
|
. *(1.0-EXP(-(zoliq(i)/zneb(i)/zcl(i))**2)) *(1.-zfice(i)) |
| 432 |
|
|
c meme chose pour la glace. |
| 433 |
|
|
if (ptconv(i,k)) then |
| 434 |
|
|
zfroi(i) = dtime/FLOAT(ninter)/zdz(i)*zoliq(i) |
| 435 |
|
|
. *fallvc(zrhol(i)) * zfice(i) |
| 436 |
|
|
else |
| 437 |
|
|
zfroi(i) = dtime/FLOAT(ninter)/zdz(i)*zoliq(i) |
| 438 |
|
|
. *fallvs(zrhol(i)) * zfice(i) |
| 439 |
|
|
endif |
| 440 |
|
|
ztot(i) = zchau(i) + zfroi(i) |
| 441 |
|
|
IF (zneb(i).EQ.seuil_neb) ztot(i) = 0.0 |
| 442 |
|
|
ztot(i) = MIN(MAX(ztot(i),0.0),zoliq(i)) |
| 443 |
|
|
zoliq(i) = MAX(zoliq(i)-ztot(i), 0.0) |
| 444 |
|
|
radliq(i,k) = radliq(i,k) + zoliq(i)/FLOAT(ninter+1) |
| 445 |
|
|
ENDIF |
| 446 |
|
|
ENDDO |
| 447 |
|
|
ENDDO |
| 448 |
|
|
c |
| 449 |
|
|
DO i = 1, klon |
| 450 |
|
|
IF (rneb(i,k).GT.0.0) THEN |
| 451 |
|
|
d_ql(i,k) = zoliq(i) |
| 452 |
|
|
zrfl(i) = zrfl(i)+ MAX(zcond(i)-zoliq(i),0.0) |
| 453 |
|
|
. * (paprs(i,k)-paprs(i,k+1))/(RG*dtime) |
| 454 |
|
|
ENDIF |
| 455 |
|
|
IF (zt(i).LT.RTT) THEN |
| 456 |
|
|
psfl(i,k)=zrfl(i) |
| 457 |
|
|
ELSE |
| 458 |
|
|
prfl(i,k)=zrfl(i) |
| 459 |
|
|
ENDIF |
| 460 |
|
|
ENDDO |
| 461 |
|
|
c |
| 462 |
|
|
c Calculer les tendances de q et de t: |
| 463 |
|
|
c |
| 464 |
|
|
DO i = 1, klon |
| 465 |
|
|
d_q(i,k) = zq(i) - q(i,k) |
| 466 |
|
|
d_t(i,k) = zt(i) - t(i,k) |
| 467 |
|
|
ENDDO |
| 468 |
|
|
c |
| 469 |
|
|
cAA--------------- Calcul du lessivage stratiforme ------------- |
| 470 |
|
|
|
| 471 |
|
|
DO i = 1,klon |
| 472 |
|
|
c |
| 473 |
|
|
zprec_cond(i) = MAX(zcond(i)-zoliq(i),0.0) |
| 474 |
|
|
. * (paprs(i,k)-paprs(i,k+1))/RG |
| 475 |
|
|
IF (rneb(i,k).GT.0.0.and.zprec_cond(i).gt.0.) THEN |
| 476 |
|
|
cAA lessivage nucleation LMD5 dans la couche elle-meme |
| 477 |
|
|
if (t(i,k) .GE. ztglace) THEN |
| 478 |
|
|
zalpha_tr = a_tr_sca(3) |
| 479 |
|
|
else |
| 480 |
|
|
zalpha_tr = a_tr_sca(4) |
| 481 |
|
|
endif |
| 482 |
|
|
zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/zneb(i)) |
| 483 |
|
|
pfrac_nucl(i,k)=pfrac_nucl(i,k)*(1.-zneb(i)*zfrac_lessi) |
| 484 |
|
|
frac_nucl(i,k)= 1.-zneb(i)*zfrac_lessi |
| 485 |
|
|
c |
| 486 |
|
|
c nucleation avec un facteur -1 au lieu de -0.5 |
| 487 |
|
|
zfrac_lessi = 1. - EXP(-zprec_cond(i)/zneb(i)) |
| 488 |
|
|
pfrac_1nucl(i,k)=pfrac_1nucl(i,k)*(1.-zneb(i)*zfrac_lessi) |
| 489 |
|
|
ENDIF |
| 490 |
|
|
c |
| 491 |
|
|
ENDDO ! boucle sur i |
| 492 |
|
|
c |
| 493 |
|
|
cAA Lessivage par impaction dans les couches en-dessous |
| 494 |
|
|
DO kk = k-1, 1, -1 |
| 495 |
|
|
DO i = 1, klon |
| 496 |
|
|
IF (rneb(i,k).GT.0.0.and.zprec_cond(i).gt.0.) THEN |
| 497 |
|
|
if (t(i,kk) .GE. ztglace) THEN |
| 498 |
|
|
zalpha_tr = a_tr_sca(1) |
| 499 |
|
|
else |
| 500 |
|
|
zalpha_tr = a_tr_sca(2) |
| 501 |
|
|
endif |
| 502 |
|
|
zfrac_lessi = 1. - EXP(zalpha_tr*zprec_cond(i)/zneb(i)) |
| 503 |
|
|
pfrac_impa(i,kk)=pfrac_impa(i,kk)*(1.-zneb(i)*zfrac_lessi) |
| 504 |
|
|
frac_impa(i,kk)= 1.-zneb(i)*zfrac_lessi |
| 505 |
|
|
ENDIF |
| 506 |
|
|
ENDDO |
| 507 |
|
|
ENDDO |
| 508 |
|
|
c |
| 509 |
|
|
cAA---------------------------------------------------------- |
| 510 |
|
|
c FIN DE BOUCLE SUR K |
| 511 |
|
|
9999 CONTINUE |
| 512 |
|
|
c |
| 513 |
|
|
cAA----------------------------------------------------------- |
| 514 |
|
|
c |
| 515 |
|
|
c Pluie ou neige au sol selon la temperature de la 1ere couche |
| 516 |
|
|
c |
| 517 |
|
|
DO i = 1, klon |
| 518 |
|
|
IF ((t(i,1)+d_t(i,1)) .LT. RTT) THEN |
| 519 |
|
|
snow(i) = zrfl(i) |
| 520 |
|
|
zlh_solid(i) = RLSTT-RLVTT |
| 521 |
|
|
ELSE |
| 522 |
|
|
rain(i) = zrfl(i) |
| 523 |
|
|
zlh_solid(i) = 0. |
| 524 |
|
|
ENDIF |
| 525 |
|
|
ENDDO |
| 526 |
|
|
C |
| 527 |
|
|
C For energy conservation : when snow is present, the solification |
| 528 |
|
|
c latent heat is considered. |
| 529 |
|
|
DO k = 1, klev |
| 530 |
|
|
DO i = 1, klon |
| 531 |
|
|
zcpair=RCPD*(1.0+RVTMP2*(q(i,k)+d_q(i,k))) |
| 532 |
|
|
zmair=(paprs(i,k)-paprs(i,k+1))/RG |
| 533 |
|
|
zm_solid = (prfl(i,k)-prfl(i,k+1)+psfl(i,k)-psfl(i,k+1))*dtime |
| 534 |
|
|
d_t(i,k) = d_t(i,k) + zlh_solid(i) *zm_solid / (zcpair*zmair) |
| 535 |
|
|
END DO |
| 536 |
|
|
END DO |
| 537 |
|
|
c |
| 538 |
|
|
RETURN |
| 539 |
|
|
END |
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