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! $Header: /home/cvsroot/LMDZ4/libf/phylmd/conflx.F,v 1.1.1.1 2004/05/19 12:53:08 lmdzadmin Exp $ |
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! |
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SUBROUTINE conflx (dtime,pres_h,pres_f, |
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e t, q, con_t, con_q, pqhfl, w, |
6 |
s d_t, d_q, rain, snow, |
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s pmfu, pmfd, pen_u, pde_u, pen_d, pde_d, |
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s kcbot, kctop, kdtop, pmflxr, pmflxs) |
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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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use yoethf |
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use fcttre |
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IMPLICIT none |
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c====================================================================== |
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c Auteur(s): Z.X. Li (LMD/CNRS) date: 19941014 |
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c Objet: Schema flux de masse pour la convection |
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c (schema de Tiedtke avec qqs modifications mineures) |
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c Dec.97: Prise en compte des modifications introduites par |
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c Olivier Boucher et Alexandre Armengaud pour melange |
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c et lessivage des traceurs passifs. |
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c====================================================================== |
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c Entree: |
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REAL, intent(in):: dtime ! pas d'integration (s) |
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REAL, intent(in):: pres_h(klon,klev+1) ! pression half-level (Pa) |
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REAL, intent(in):: pres_f(klon,klev)! pression full-level (Pa) |
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REAL t(klon,klev) ! temperature (K) |
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REAL q(klon,klev) ! humidite specifique (g/g) |
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REAL w(klon,klev) ! vitesse verticale (Pa/s) |
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REAL con_t(klon,klev) ! convergence de temperature (K/s) |
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REAL con_q(klon,klev) ! convergence de l'eau vapeur (g/g/s) |
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REAL pqhfl(klon) ! evaporation (negative vers haut) mm/s |
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c Sortie: |
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REAL d_t(klon,klev) ! incrementation de temperature |
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REAL d_q(klon,klev) ! incrementation d'humidite |
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REAL pmfu(klon,klev) ! flux masse (kg/m2/s) panache ascendant |
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REAL pmfd(klon,klev) ! flux masse (kg/m2/s) panache descendant |
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REAL pen_u(klon,klev) |
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REAL pen_d(klon,klev) |
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REAL pde_u(klon,klev) |
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REAL pde_d(klon,klev) |
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REAL rain(klon) ! pluie (mm/s) |
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REAL snow(klon) ! neige (mm/s) |
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REAL pmflxr(klon,klev+1) |
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REAL pmflxs(klon,klev+1) |
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INTEGER kcbot(klon) ! niveau du bas de la convection |
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INTEGER kctop(klon) ! niveau du haut de la convection |
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INTEGER kdtop(klon) ! niveau du haut des downdrafts |
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c Local: |
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REAL pt(klon,klev) |
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REAL pq(klon,klev) |
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REAL pqs(klon,klev) |
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REAL pvervel(klon,klev) |
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LOGICAL land(klon) |
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c |
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REAL d_t_bis(klon,klev) |
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REAL d_q_bis(klon,klev) |
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REAL paprs(klon,klev+1) |
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REAL paprsf(klon,klev) |
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REAL zgeom(klon,klev) |
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REAL zcvgq(klon,klev) |
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REAL zcvgt(klon,klev) |
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cAA |
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REAL zmfu(klon,klev) |
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REAL zmfd(klon,klev) |
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REAL zen_u(klon,klev) |
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REAL zen_d(klon,klev) |
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REAL zde_u(klon,klev) |
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REAL zde_d(klon,klev) |
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REAL zmflxr(klon,klev+1) |
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REAL zmflxs(klon,klev+1) |
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cAA |
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|
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c |
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INTEGER i, k |
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REAL zdelta, zqsat |
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c |
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c |
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c initialiser les variables de sortie (pour securite) |
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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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kcbot(i) = 0 |
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kctop(i) = 0 |
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kdtop(i) = 0 |
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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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pmfu(i,k) = 0.0 |
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pmfd(i,k) = 0.0 |
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pen_u(i,k) = 0.0 |
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pde_u(i,k) = 0.0 |
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pen_d(i,k) = 0.0 |
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pde_d(i,k) = 0.0 |
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zmfu(i,k) = 0.0 |
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zmfd(i,k) = 0.0 |
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zen_u(i,k) = 0.0 |
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zde_u(i,k) = 0.0 |
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zen_d(i,k) = 0.0 |
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zde_d(i,k) = 0.0 |
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ENDDO |
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ENDDO |
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DO k = 1, klev+1 |
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DO i = 1, klon |
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zmflxr(i,k) = 0.0 |
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zmflxs(i,k) = 0.0 |
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ENDDO |
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ENDDO |
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c |
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c calculer la nature du sol (pour l'instant, ocean partout) |
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DO i = 1, klon |
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land(i) = .FALSE. |
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ENDDO |
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c |
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c preparer les variables d'entree (attention: l'ordre des niveaux |
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c verticaux augmente du haut vers le bas) |
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DO k = 1, klev |
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DO i = 1, klon |
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pt(i,k) = t(i,klev-k+1) |
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pq(i,k) = q(i,klev-k+1) |
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paprsf(i,k) = pres_f(i,klev-k+1) |
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paprs(i,k) = pres_h(i,klev+1-k+1) |
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pvervel(i,k) = w(i,klev+1-k) |
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zcvgt(i,k) = con_t(i,klev-k+1) |
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zcvgq(i,k) = con_q(i,klev-k+1) |
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c |
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zdelta=MAX(0.,SIGN(1.,RTT-pt(i,k))) |
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zqsat=R2ES*FOEEW ( pt(i,k), zdelta ) / paprsf(i,k) |
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zqsat=MIN(0.5,zqsat) |
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zqsat=zqsat/(1.-RETV *zqsat) |
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pqs(i,k) = zqsat |
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ENDDO |
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ENDDO |
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DO i = 1, klon |
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paprs(i,klev+1) = pres_h(i,1) |
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zgeom(i,klev) = RD * pt(i,klev) |
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. / (0.5*(paprs(i,klev+1)+paprsf(i,klev))) |
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. * (paprs(i,klev+1)-paprsf(i,klev)) |
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ENDDO |
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DO k = klev-1, 1, -1 |
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DO i = 1, klon |
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zgeom(i,k) = zgeom(i,k+1) |
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. + RD * 0.5*(pt(i,k+1)+pt(i,k)) / paprs(i,k+1) |
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. * (paprsf(i,k+1)-paprsf(i,k)) |
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ENDDO |
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ENDDO |
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c |
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c appeler la routine principale |
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c |
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CALL flxmain(dtime, pt, pq, pqs, pqhfl, |
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. paprsf, paprs, zgeom, land, zcvgt, zcvgq, pvervel, |
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. rain, snow, kcbot, kctop, kdtop, |
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. zmfu, zmfd, zen_u, zde_u, zen_d, zde_d, |
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. d_t_bis, d_q_bis, zmflxr, zmflxs) |
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C |
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cAA-------------------------------------------------------- |
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cAA rem : De la meme facon que l'on effectue le reindicage |
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cAA pour la temperature t et le champ q |
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cAA on reindice les flux necessaires a la convection |
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cAA des traceurs |
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cAA-------------------------------------------------------- |
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DO k = 1, klev |
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DO i = 1, klon |
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d_q(i,klev+1-k) = dtime*d_q_bis(i,k) |
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d_t(i,klev+1-k) = dtime*d_t_bis(i,k) |
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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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pmfu(i,1)= 0. |
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pmfd(i,1)= 0. |
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pen_d(i,1)= 0. |
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pde_d(i,1)= 0. |
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ENDDO |
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|
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DO k = 2, klev |
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DO i = 1, klon |
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pmfu(i,klev+2-k)= zmfu(i,k) |
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pmfd(i,klev+2-k)= zmfd(i,k) |
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ENDDO |
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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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pen_u(i,klev+1-k)= zen_u(i,k) |
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pde_u(i,klev+1-k)= zde_u(i,k) |
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ENDDO |
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ENDDO |
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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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pen_d(i,klev+1-k)= -zen_d(i,k+1) |
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pde_d(i,klev+1-k)= -zde_d(i,k+1) |
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ENDDO |
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ENDDO |
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|
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DO k = 1, klev+1 |
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DO i = 1, klon |
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pmflxr(i,klev+2-k)= zmflxr(i,k) |
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pmflxs(i,klev+2-k)= zmflxs(i,k) |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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c-------------------------------------------------------------------- |
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SUBROUTINE flxmain(pdtime, pten, pqen, pqsen, pqhfl, pap, paph, |
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. pgeo, ldland, ptte, pqte, pvervel, |
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. prsfc, pssfc, kcbot, kctop, kdtop, |
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c * ldcum, ktype, |
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. pmfu, pmfd, pen_u, pde_u, pen_d, pde_d, |
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. dt_con, dq_con, pmflxr, pmflxs) |
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use dimens_m |
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use dimphy |
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use YOMCST |
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use yoethf |
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use yoecumf |
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IMPLICIT none |
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C ------------------------------------------------------------------ |
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C ---------------------------------------------------------------- |
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REAL pten(klon,klev), pqen(klon,klev), pqsen(klon,klev) |
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REAL ptte(klon,klev) |
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REAL pqte(klon,klev) |
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REAL pvervel(klon,klev) |
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REAL pgeo(klon,klev), pap(klon,klev), paph(klon,klev+1) |
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REAL pqhfl(klon) |
230 |
c |
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REAL ptu(klon,klev), pqu(klon,klev), plu(klon,klev) |
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REAL plude(klon,klev) |
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REAL pmfu(klon,klev) |
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REAL prsfc(klon), pssfc(klon) |
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INTEGER kcbot(klon), kctop(klon), ktype(klon) |
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LOGICAL ldland(klon), ldcum(klon) |
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c |
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REAL ztenh(klon,klev), zqenh(klon,klev), zqsenh(klon,klev) |
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REAL zgeoh(klon,klev) |
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REAL zmfub(klon), zmfub1(klon) |
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REAL zmfus(klon,klev), zmfuq(klon,klev), zmful(klon,klev) |
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REAL zdmfup(klon,klev), zdpmel(klon,klev) |
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REAL zentr(klon), zhcbase(klon) |
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REAL zdqpbl(klon), zdqcv(klon), zdhpbl(klon) |
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REAL zrfl(klon) |
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REAL pmflxr(klon,klev+1) |
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REAL pmflxs(klon,klev+1) |
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INTEGER ilab(klon,klev), ictop0(klon) |
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LOGICAL llo1 |
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REAL dt_con(klon,klev), dq_con(klon,klev) |
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REAL zmfmax, zdh |
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REAL, intent(in):: pdtime |
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real zqumqe, zdqmin, zalvdcp, zhsat, zzz |
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REAL zhhat, zpbmpt, zgam, zeps, zfac |
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INTEGER i, k, ikb, itopm2, kcum |
256 |
c |
257 |
REAL pen_u(klon,klev), pde_u(klon,klev) |
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REAL pen_d(klon,klev), pde_d(klon,klev) |
259 |
c |
260 |
REAL ptd(klon,klev), pqd(klon,klev), pmfd(klon,klev) |
261 |
REAL zmfds(klon,klev), zmfdq(klon,klev), zdmfdp(klon,klev) |
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INTEGER kdtop(klon) |
263 |
LOGICAL lddraf(klon) |
264 |
C--------------------------------------------------------------------- |
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LOGICAL firstcal |
266 |
SAVE firstcal |
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DATA firstcal / .TRUE. / |
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C--------------------------------------------------------------------- |
269 |
IF (firstcal) THEN |
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CALL flxsetup |
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firstcal = .FALSE. |
272 |
ENDIF |
273 |
C--------------------------------------------------------------------- |
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DO i = 1, klon |
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ldcum(i) = .FALSE. |
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ENDDO |
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DO k = 1, klev |
278 |
DO i = 1, klon |
279 |
dt_con(i,k) = 0.0 |
280 |
dq_con(i,k) = 0.0 |
281 |
ENDDO |
282 |
ENDDO |
283 |
c---------------------------------------------------------------------- |
284 |
c initialiser les variables et faire l'interpolation verticale |
285 |
c---------------------------------------------------------------------- |
286 |
CALL flxini(pten, pqen, pqsen, pgeo, |
287 |
. paph, zgeoh, ztenh, zqenh, zqsenh, |
288 |
. ptu, pqu, ptd, pqd, pmfd, zmfds, zmfdq, zdmfdp, |
289 |
. pmfu, zmfus, zmfuq, zdmfup, |
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. zdpmel, plu, plude, ilab, pen_u, pde_u, pen_d, pde_d) |
291 |
c--------------------------------------------------------------------- |
292 |
c determiner les valeurs au niveau de base de la tour convective |
293 |
c--------------------------------------------------------------------- |
294 |
CALL flxbase(ztenh, zqenh, zgeoh, paph, |
295 |
* ptu, pqu, plu, ldcum, kcbot, ilab) |
296 |
c--------------------------------------------------------------------- |
297 |
c calculer la convergence totale de l'humidite et celle en provenance |
298 |
c de la couche limite, plus precisement, la convergence integree entre |
299 |
c le sol et la base de la convection. Cette derniere convergence est |
300 |
c comparee avec l'evaporation obtenue dans la couche limite pour |
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c determiner le type de la convection |
302 |
c--------------------------------------------------------------------- |
303 |
k=1 |
304 |
DO i = 1, klon |
305 |
zdqcv(i) = pqte(i,k)*(paph(i,k+1)-paph(i,k)) |
306 |
zdhpbl(i) = 0.0 |
307 |
zdqpbl(i) = 0.0 |
308 |
ENDDO |
309 |
c |
310 |
DO k=2,klev |
311 |
DO i = 1, klon |
312 |
zdqcv(i)=zdqcv(i)+pqte(i,k)*(paph(i,k+1)-paph(i,k)) |
313 |
IF (k.GE.kcbot(i)) THEN |
314 |
zdqpbl(i)=zdqpbl(i)+pqte(i,k)*(paph(i,k+1)-paph(i,k)) |
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zdhpbl(i)=zdhpbl(i)+(RCPD*ptte(i,k)+RLVTT*pqte(i,k)) |
316 |
. *(paph(i,k+1)-paph(i,k)) |
317 |
ENDIF |
318 |
ENDDO |
319 |
ENDDO |
320 |
c |
321 |
DO i = 1, klon |
322 |
ktype(i) = 2 |
323 |
if (zdqcv(i).GT.MAX(0.,-1.5*pqhfl(i)*RG)) ktype(i) = 1 |
324 |
ccc if (zdqcv(i).GT.MAX(0.,-1.1*pqhfl(i)*RG)) ktype(i) = 1 |
325 |
ENDDO |
326 |
c |
327 |
c--------------------------------------------------------------------- |
328 |
c determiner le flux de masse entrant a travers la base. |
329 |
c on ignore, pour l'instant, l'effet du panache descendant |
330 |
c--------------------------------------------------------------------- |
331 |
DO i = 1, klon |
332 |
ikb=kcbot(i) |
333 |
zqumqe=pqu(i,ikb)+plu(i,ikb)-zqenh(i,ikb) |
334 |
zdqmin=MAX(0.01*zqenh(i,ikb),1.E-10) |
335 |
IF (zdqpbl(i).GT.0..AND.zqumqe.GT.zdqmin.AND.ldcum(i)) THEN |
336 |
zmfub(i) = zdqpbl(i)/(RG*MAX(zqumqe,zdqmin)) |
337 |
ELSE |
338 |
zmfub(i) = 0.01 |
339 |
ldcum(i)=.FALSE. |
340 |
ENDIF |
341 |
IF (ktype(i).EQ.2) THEN |
342 |
zdh = RCPD*(ptu(i,ikb)-ztenh(i,ikb)) + RLVTT*zqumqe |
343 |
zdh = RG * MAX(zdh,1.0E5*zdqmin) |
344 |
IF (zdhpbl(i).GT.0..AND.ldcum(i))zmfub(i)=zdhpbl(i)/zdh |
345 |
ENDIF |
346 |
zmfmax = (paph(i,ikb)-paph(i,ikb-1)) / (RG*pdtime) |
347 |
zmfub(i) = MIN(zmfub(i),zmfmax) |
348 |
zentr(i) = ENTRSCV |
349 |
IF (ktype(i).EQ.1) zentr(i) = ENTRPEN |
350 |
ENDDO |
351 |
C----------------------------------------------------------------------- |
352 |
C DETERMINE CLOUD ASCENT FOR ENTRAINING PLUME |
353 |
C----------------------------------------------------------------------- |
354 |
c (A) calculer d'abord la hauteur "theorique" de la tour convective sans |
355 |
c considerer l'entrainement ni le detrainement du panache, sachant |
356 |
c ces derniers peuvent abaisser la hauteur theorique. |
357 |
c |
358 |
DO i = 1, klon |
359 |
ikb=kcbot(i) |
360 |
zhcbase(i)=RCPD*ptu(i,ikb)+zgeoh(i,ikb)+RLVTT*pqu(i,ikb) |
361 |
ictop0(i)=kcbot(i)-1 |
362 |
ENDDO |
363 |
c |
364 |
zalvdcp=RLVTT/RCPD |
365 |
DO k=klev-1,3,-1 |
366 |
DO i = 1, klon |
367 |
zhsat=RCPD*ztenh(i,k)+zgeoh(i,k)+RLVTT*zqsenh(i,k) |
368 |
zgam=R5LES*zalvdcp*zqsenh(i,k)/ |
369 |
. ((1.-RETV *zqsenh(i,k))*(ztenh(i,k)-R4LES)**2) |
370 |
zzz=RCPD*ztenh(i,k)*0.608 |
371 |
zhhat=zhsat-(zzz+zgam*zzz)/(1.+zgam*zzz/RLVTT)* |
372 |
. MAX(zqsenh(i,k)-zqenh(i,k),0.) |
373 |
IF(k.LT.ictop0(i).AND.zhcbase(i).GT.zhhat) ictop0(i)=k |
374 |
ENDDO |
375 |
ENDDO |
376 |
c |
377 |
c (B) calculer le panache ascendant |
378 |
c |
379 |
CALL flxasc(pdtime,ztenh, zqenh, pten, pqen, pqsen, |
380 |
. pgeo, zgeoh, pap, paph, pqte, pvervel, |
381 |
. ldland, ldcum, ktype, ilab, |
382 |
. ptu, pqu, plu, pmfu, zmfub, zentr, |
383 |
. zmfus, zmfuq, zmful, plude, zdmfup, |
384 |
. kcbot, kctop, ictop0, kcum, pen_u, pde_u) |
385 |
IF (kcum.EQ.0) GO TO 1000 |
386 |
C |
387 |
C verifier l'epaisseur de la convection et changer eventuellement |
388 |
c le taux d'entrainement/detrainement |
389 |
C |
390 |
DO i = 1, klon |
391 |
zpbmpt=paph(i,kcbot(i))-paph(i,kctop(i)) |
392 |
IF(ldcum(i).AND.ktype(i).EQ.1.AND.zpbmpt.LT.2.E4)ktype(i)=2 |
393 |
IF(ldcum(i)) ictop0(i)=kctop(i) |
394 |
IF(ktype(i).EQ.2) zentr(i)=ENTRSCV |
395 |
ENDDO |
396 |
c |
397 |
IF (lmfdd) THEN ! si l'on considere le panache descendant |
398 |
c |
399 |
c calculer la precipitation issue du panache ascendant pour |
400 |
c determiner l'existence du panache descendant dans la convection |
401 |
DO i = 1, klon |
402 |
zrfl(i)=zdmfup(i,1) |
403 |
ENDDO |
404 |
DO k=2,klev |
405 |
DO i = 1, klon |
406 |
zrfl(i)=zrfl(i)+zdmfup(i,k) |
407 |
ENDDO |
408 |
ENDDO |
409 |
c |
410 |
c determiner le LFS (level of free sinking: niveau de plonge libre) |
411 |
CALL flxdlfs(ztenh, zqenh, zgeoh, paph, ptu, pqu, |
412 |
* ldcum, kcbot, kctop, zmfub, zrfl, |
413 |
* ptd, pqd, |
414 |
* pmfd, zmfds, zmfdq, zdmfdp, |
415 |
* kdtop, lddraf) |
416 |
c |
417 |
c calculer le panache descendant |
418 |
CALL flxddraf(ztenh, zqenh, |
419 |
* zgeoh, paph, zrfl, |
420 |
* ptd, pqd, |
421 |
* pmfd, zmfds, zmfdq, zdmfdp, |
422 |
* lddraf, pen_d, pde_d) |
423 |
c |
424 |
c calculer de nouveau le flux de masse entrant a travers la base |
425 |
c de la convection, sachant qu'il a ete modifie par le panache |
426 |
c descendant |
427 |
DO i = 1, klon |
428 |
IF (lddraf(i)) THEN |
429 |
ikb = kcbot(i) |
430 |
llo1 = PMFD(i,ikb).LT.0. |
431 |
zeps = 0. |
432 |
IF ( llo1 ) zeps = CMFDEPS |
433 |
zqumqe = pqu(i,ikb)+plu(i,ikb)- |
434 |
. zeps*pqd(i,ikb)-(1.-zeps)*zqenh(i,ikb) |
435 |
zdqmin = MAX(0.01*zqenh(i,ikb),1.E-10) |
436 |
zmfmax = (paph(i,ikb)-paph(i,ikb-1)) / (RG*pdtime) |
437 |
IF (zdqpbl(i).GT.0..AND.zqumqe.GT.zdqmin.AND.ldcum(i) |
438 |
. .AND.zmfub(i).LT.zmfmax) THEN |
439 |
zmfub1(i) = zdqpbl(i) / (RG*MAX(zqumqe,zdqmin)) |
440 |
ELSE |
441 |
zmfub1(i) = zmfub(i) |
442 |
ENDIF |
443 |
IF (ktype(i).EQ.2) THEN |
444 |
zdh = RCPD*(ptu(i,ikb)-zeps*ptd(i,ikb)- |
445 |
. (1.-zeps)*ztenh(i,ikb))+RLVTT*zqumqe |
446 |
zdh = RG * MAX(zdh,1.0E5*zdqmin) |
447 |
IF (zdhpbl(i).GT.0..AND.ldcum(i))zmfub1(i)=zdhpbl(i)/zdh |
448 |
ENDIF |
449 |
IF ( .NOT.((ktype(i).EQ.1.OR.ktype(i).EQ.2).AND. |
450 |
. ABS(zmfub1(i)-zmfub(i)).LT.0.2*zmfub(i)) ) |
451 |
. zmfub1(i) = zmfub(i) |
452 |
ENDIF |
453 |
ENDDO |
454 |
DO k = 1, klev |
455 |
DO i = 1, klon |
456 |
IF (lddraf(i)) THEN |
457 |
zfac = zmfub1(i)/MAX(zmfub(i),1.E-10) |
458 |
pmfd(i,k) = pmfd(i,k)*zfac |
459 |
zmfds(i,k) = zmfds(i,k)*zfac |
460 |
zmfdq(i,k) = zmfdq(i,k)*zfac |
461 |
zdmfdp(i,k) = zdmfdp(i,k)*zfac |
462 |
pen_d(i,k) = pen_d(i,k)*zfac |
463 |
pde_d(i,k) = pde_d(i,k)*zfac |
464 |
ENDIF |
465 |
ENDDO |
466 |
ENDDO |
467 |
DO i = 1, klon |
468 |
IF (lddraf(i)) zmfub(i)=zmfub1(i) |
469 |
ENDDO |
470 |
c |
471 |
ENDIF ! fin de test sur lmfdd |
472 |
c |
473 |
c----------------------------------------------------------------------- |
474 |
c calculer de nouveau le panache ascendant |
475 |
c----------------------------------------------------------------------- |
476 |
CALL flxasc(pdtime,ztenh, zqenh, pten, pqen, pqsen, |
477 |
. pgeo, zgeoh, pap, paph, pqte, pvervel, |
478 |
. ldland, ldcum, ktype, ilab, |
479 |
. ptu, pqu, plu, pmfu, zmfub, zentr, |
480 |
. zmfus, zmfuq, zmful, plude, zdmfup, |
481 |
. kcbot, kctop, ictop0, kcum, pen_u, pde_u) |
482 |
c |
483 |
c----------------------------------------------------------------------- |
484 |
c determiner les flux convectifs en forme finale, ainsi que |
485 |
c la quantite des precipitations |
486 |
c----------------------------------------------------------------------- |
487 |
CALL flxflux(pdtime, pqen, pqsen, ztenh, zqenh, pap, paph, |
488 |
. ldland, zgeoh, kcbot, kctop, lddraf, kdtop, ktype, ldcum, |
489 |
. pmfu, pmfd, zmfus, zmfds, zmfuq, zmfdq, zmful, plude, |
490 |
. zdmfup, zdmfdp, pten, prsfc, pssfc, zdpmel, itopm2, |
491 |
. pmflxr, pmflxs) |
492 |
c |
493 |
c---------------------------------------------------------------------- |
494 |
c calculer les tendances pour T et Q |
495 |
c---------------------------------------------------------------------- |
496 |
CALL flxdtdq(itopm2, paph, ldcum, pten, |
497 |
e zmfus, zmfds, zmfuq, zmfdq, zmful, zdmfup, zdmfdp, zdpmel, |
498 |
s dt_con,dq_con) |
499 |
c |
500 |
1000 CONTINUE |
501 |
RETURN |
502 |
END |
503 |
SUBROUTINE flxini(pten, pqen, pqsen, pgeo, paph, pgeoh, ptenh, |
504 |
. pqenh, pqsenh, ptu, pqu, ptd, pqd, pmfd, pmfds, pmfdq, |
505 |
. pdmfdp, pmfu, pmfus, pmfuq, pdmfup, pdpmel, plu, plude, |
506 |
. klab,pen_u, pde_u, pen_d, pde_d) |
507 |
use dimens_m |
508 |
use dimphy |
509 |
use YOMCST |
510 |
use yoethf |
511 |
IMPLICIT none |
512 |
C---------------------------------------------------------------------- |
513 |
C THIS ROUTINE INTERPOLATES LARGE-SCALE FIELDS OF T,Q ETC. |
514 |
C TO HALF LEVELS (I.E. GRID FOR MASSFLUX SCHEME), |
515 |
C AND INITIALIZES VALUES FOR UPDRAFTS |
516 |
C---------------------------------------------------------------------- |
517 |
C |
518 |
REAL pten(klon,klev) ! temperature (environnement) |
519 |
REAL pqen(klon,klev) ! humidite (environnement) |
520 |
REAL pqsen(klon,klev) ! humidite saturante (environnement) |
521 |
REAL pgeo(klon,klev) ! geopotentiel (g * metre) |
522 |
REAL pgeoh(klon,klev) ! geopotentiel aux demi-niveaux |
523 |
REAL paph(klon,klev+1) ! pression aux demi-niveaux |
524 |
REAL ptenh(klon,klev) ! temperature aux demi-niveaux |
525 |
REAL pqenh(klon,klev) ! humidite aux demi-niveaux |
526 |
REAL pqsenh(klon,klev) ! humidite saturante aux demi-niveaux |
527 |
C |
528 |
REAL ptu(klon,klev) ! temperature du panache ascendant (p-a) |
529 |
REAL pqu(klon,klev) ! humidite du p-a |
530 |
REAL plu(klon,klev) ! eau liquide du p-a |
531 |
REAL pmfu(klon,klev) ! flux de masse du p-a |
532 |
REAL pmfus(klon,klev) ! flux de l'energie seche dans le p-a |
533 |
REAL pmfuq(klon,klev) ! flux de l'humidite dans le p-a |
534 |
REAL pdmfup(klon,klev) ! quantite de l'eau precipitee dans p-a |
535 |
REAL plude(klon,klev) ! quantite de l'eau liquide jetee du |
536 |
c p-a a l'environnement |
537 |
REAL pdpmel(klon,klev) ! quantite de neige fondue |
538 |
c |
539 |
REAL ptd(klon,klev) ! temperature du panache descendant (p-d) |
540 |
REAL pqd(klon,klev) ! humidite du p-d |
541 |
REAL pmfd(klon,klev) ! flux de masse du p-d |
542 |
REAL pmfds(klon,klev) ! flux de l'energie seche dans le p-d |
543 |
REAL pmfdq(klon,klev) ! flux de l'humidite dans le p-d |
544 |
REAL pdmfdp(klon,klev) ! quantite de precipitation dans p-d |
545 |
c |
546 |
REAL pen_u(klon,klev) ! quantite de masse entrainee pour p-a |
547 |
REAL pde_u(klon,klev) ! quantite de masse detrainee pour p-a |
548 |
REAL pen_d(klon,klev) ! quantite de masse entrainee pour p-d |
549 |
REAL pde_d(klon,klev) ! quantite de masse detrainee pour p-d |
550 |
C |
551 |
INTEGER klab(klon,klev) |
552 |
LOGICAL llflag(klon) |
553 |
INTEGER k, i, icall |
554 |
REAL zzs |
555 |
C---------------------------------------------------------------------- |
556 |
C SPECIFY LARGE SCALE PARAMETERS AT HALF LEVELS |
557 |
C ADJUST TEMPERATURE FIELDS IF STATICLY UNSTABLE |
558 |
C---------------------------------------------------------------------- |
559 |
DO 130 k = 2, klev |
560 |
c |
561 |
DO i = 1, klon |
562 |
pgeoh(i,k)=pgeo(i,k)+(pgeo(i,k-1)-pgeo(i,k))*0.5 |
563 |
ptenh(i,k)=(MAX(RCPD*pten(i,k-1)+pgeo(i,k-1), |
564 |
. RCPD*pten(i,k)+pgeo(i,k))-pgeoh(i,k))/RCPD |
565 |
pqsenh(i,k)=pqsen(i,k-1) |
566 |
llflag(i)=.TRUE. |
567 |
ENDDO |
568 |
c |
569 |
icall=0 |
570 |
CALL flxadjtq(paph(1,k),ptenh(1,k),pqsenh(1,k),llflag,icall) |
571 |
c |
572 |
DO i = 1, klon |
573 |
pqenh(i,k)=MIN(pqen(i,k-1),pqsen(i,k-1)) |
574 |
. +(pqsenh(i,k)-pqsen(i,k-1)) |
575 |
pqenh(i,k)=MAX(pqenh(i,k),0.) |
576 |
ENDDO |
577 |
c |
578 |
130 CONTINUE |
579 |
C |
580 |
DO 140 i = 1, klon |
581 |
ptenh(i,klev)=(RCPD*pten(i,klev)+pgeo(i,klev)- |
582 |
1 pgeoh(i,klev))/RCPD |
583 |
pqenh(i,klev)=pqen(i,klev) |
584 |
ptenh(i,1)=pten(i,1) |
585 |
pqenh(i,1)=pqen(i,1) |
586 |
pgeoh(i,1)=pgeo(i,1) |
587 |
140 CONTINUE |
588 |
c |
589 |
DO 160 k = klev-1, 2, -1 |
590 |
DO 150 i = 1, klon |
591 |
zzs = MAX(RCPD*ptenh(i,k)+pgeoh(i,k), |
592 |
. RCPD*ptenh(i,k+1)+pgeoh(i,k+1)) |
593 |
ptenh(i,k) = (zzs-pgeoh(i,k))/RCPD |
594 |
150 CONTINUE |
595 |
160 CONTINUE |
596 |
C |
597 |
C----------------------------------------------------------------------- |
598 |
C INITIALIZE VALUES FOR UPDRAFTS AND DOWNDRAFTS |
599 |
C----------------------------------------------------------------------- |
600 |
DO k = 1, klev |
601 |
DO i = 1, klon |
602 |
ptu(i,k) = ptenh(i,k) |
603 |
pqu(i,k) = pqenh(i,k) |
604 |
plu(i,k) = 0. |
605 |
pmfu(i,k) = 0. |
606 |
pmfus(i,k) = 0. |
607 |
pmfuq(i,k) = 0. |
608 |
pdmfup(i,k) = 0. |
609 |
pdpmel(i,k) = 0. |
610 |
plude(i,k) = 0. |
611 |
c |
612 |
klab(i,k) = 0 |
613 |
c |
614 |
ptd(i,k) = ptenh(i,k) |
615 |
pqd(i,k) = pqenh(i,k) |
616 |
pmfd(i,k) = 0.0 |
617 |
pmfds(i,k) = 0.0 |
618 |
pmfdq(i,k) = 0.0 |
619 |
pdmfdp(i,k) = 0.0 |
620 |
c |
621 |
pen_u(i,k) = 0.0 |
622 |
pde_u(i,k) = 0.0 |
623 |
pen_d(i,k) = 0.0 |
624 |
pde_d(i,k) = 0.0 |
625 |
ENDDO |
626 |
ENDDO |
627 |
C |
628 |
RETURN |
629 |
END |
630 |
SUBROUTINE flxbase(ptenh, pqenh, pgeoh, paph, |
631 |
* ptu, pqu, plu, ldcum, kcbot, klab) |
632 |
use dimens_m |
633 |
use dimphy |
634 |
use YOMCST |
635 |
use yoethf |
636 |
IMPLICIT none |
637 |
C---------------------------------------------------------------------- |
638 |
C THIS ROUTINE CALCULATES CLOUD BASE VALUES (T AND Q) |
639 |
C |
640 |
C INPUT ARE ENVIRONM. VALUES OF T,Q,P,PHI AT HALF LEVELS. |
641 |
C IT RETURNS CLOUD BASE VALUES AND FLAGS AS FOLLOWS; |
642 |
C klab=1 FOR SUBCLOUD LEVELS |
643 |
C klab=2 FOR CONDENSATION LEVEL |
644 |
C |
645 |
C LIFT SURFACE AIR DRY-ADIABATICALLY TO CLOUD BASE |
646 |
C (NON ENTRAINING PLUME,I.E.CONSTANT MASSFLUX) |
647 |
C---------------------------------------------------------------------- |
648 |
C ---------------------------------------------------------------- |
649 |
REAL ptenh(klon,klev), pqenh(klon,klev) |
650 |
REAL pgeoh(klon,klev), paph(klon,klev+1) |
651 |
C |
652 |
REAL ptu(klon,klev), pqu(klon,klev), plu(klon,klev) |
653 |
INTEGER klab(klon,klev), kcbot(klon) |
654 |
C |
655 |
LOGICAL llflag(klon), ldcum(klon) |
656 |
INTEGER i, k, icall, is |
657 |
REAL zbuo, zqold(klon) |
658 |
C---------------------------------------------------------------------- |
659 |
C INITIALIZE VALUES AT LIFTING LEVEL |
660 |
C---------------------------------------------------------------------- |
661 |
DO i = 1, klon |
662 |
klab(i,klev)=1 |
663 |
kcbot(i)=klev-1 |
664 |
ldcum(i)=.FALSE. |
665 |
ENDDO |
666 |
C---------------------------------------------------------------------- |
667 |
C DO ASCENT IN SUBCLOUD LAYER, |
668 |
C CHECK FOR EXISTENCE OF CONDENSATION LEVEL, |
669 |
C ADJUST T,Q AND L ACCORDINGLY |
670 |
C CHECK FOR BUOYANCY AND SET FLAGS |
671 |
C---------------------------------------------------------------------- |
672 |
DO 290 k = klev-1, 2, -1 |
673 |
c |
674 |
is = 0 |
675 |
DO i = 1, klon |
676 |
IF (klab(i,k+1).EQ.1) is = is + 1 |
677 |
llflag(i) = .FALSE. |
678 |
IF (klab(i,k+1).EQ.1) llflag(i) = .TRUE. |
679 |
ENDDO |
680 |
IF (is.EQ.0) GOTO 290 |
681 |
c |
682 |
DO i = 1, klon |
683 |
IF(llflag(i)) THEN |
684 |
pqu(i,k) = pqu(i,k+1) |
685 |
ptu(i,k) = ptu(i,k+1)+(pgeoh(i,k+1)-pgeoh(i,k))/RCPD |
686 |
zbuo = ptu(i,k)*(1.+RETV*pqu(i,k))- |
687 |
. ptenh(i,k)*(1.+RETV*pqenh(i,k))+0.5 |
688 |
IF (zbuo.GT.0.) klab(i,k) = 1 |
689 |
zqold(i) = pqu(i,k) |
690 |
ENDIF |
691 |
ENDDO |
692 |
c |
693 |
icall=1 |
694 |
CALL flxadjtq(paph(1,k), ptu(1,k), pqu(1,k), llflag, icall) |
695 |
c |
696 |
DO i = 1, klon |
697 |
IF (llflag(i).AND.pqu(i,k).NE.zqold(i)) THEN |
698 |
klab(i,k) = 2 |
699 |
plu(i,k) = plu(i,k) + zqold(i)-pqu(i,k) |
700 |
zbuo = ptu(i,k)*(1.+RETV*pqu(i,k))- |
701 |
. ptenh(i,k)*(1.+RETV*pqenh(i,k))+0.5 |
702 |
IF (zbuo.GT.0.) kcbot(i) = k |
703 |
IF (zbuo.GT.0.) ldcum(i) = .TRUE. |
704 |
ENDIF |
705 |
ENDDO |
706 |
c |
707 |
290 CONTINUE |
708 |
c |
709 |
RETURN |
710 |
END |
711 |
SUBROUTINE flxasc(pdtime, ptenh, pqenh, pten, pqen, pqsen, |
712 |
. pgeo, pgeoh, pap, paph, pqte, pvervel, |
713 |
. ldland, ldcum, ktype, klab, ptu, pqu, plu, |
714 |
. pmfu, pmfub, pentr, pmfus, pmfuq, |
715 |
. pmful, plude, pdmfup, kcbot, kctop, kctop0, kcum, |
716 |
. pen_u, pde_u) |
717 |
use dimens_m |
718 |
use dimphy |
719 |
use YOMCST |
720 |
use yoethf |
721 |
use yoecumf |
722 |
IMPLICIT none |
723 |
C---------------------------------------------------------------------- |
724 |
C THIS ROUTINE DOES THE CALCULATIONS FOR CLOUD ASCENTS |
725 |
C FOR CUMULUS PARAMETERIZATION |
726 |
C---------------------------------------------------------------------- |
727 |
C |
728 |
REAL, intent(in):: pdtime |
729 |
REAL pten(klon,klev), ptenh(klon,klev) |
730 |
REAL pqen(klon,klev), pqenh(klon,klev), pqsen(klon,klev) |
731 |
REAL pgeo(klon,klev), pgeoh(klon,klev) |
732 |
REAL pap(klon,klev), paph(klon,klev+1) |
733 |
REAL pqte(klon,klev) |
734 |
REAL pvervel(klon,klev) ! vitesse verticale en Pa/s |
735 |
C |
736 |
REAL pmfub(klon), pentr(klon) |
737 |
REAL ptu(klon,klev), pqu(klon,klev), plu(klon,klev) |
738 |
REAL plude(klon,klev) |
739 |
REAL pmfu(klon,klev), pmfus(klon,klev) |
740 |
REAL pmfuq(klon,klev), pmful(klon,klev) |
741 |
REAL pdmfup(klon,klev) |
742 |
INTEGER ktype(klon), klab(klon,klev), kcbot(klon), kctop(klon) |
743 |
INTEGER kctop0(klon) |
744 |
LOGICAL ldland(klon), ldcum(klon) |
745 |
C |
746 |
REAL pen_u(klon,klev), pde_u(klon,klev) |
747 |
REAL zqold(klon) |
748 |
REAL zdland(klon) |
749 |
LOGICAL llflag(klon) |
750 |
INTEGER k, i, is, icall, kcum |
751 |
REAL ztglace, zdphi, zqeen, zseen, zscde, zqude |
752 |
REAL zmfusk, zmfuqk, zmfulk, zbuo, zdnoprc, zprcon, zlnew |
753 |
c |
754 |
REAL zpbot(klon), zptop(klon), zrho(klon) |
755 |
REAL zdprho, zentr, zpmid, zmftest, zmfmax |
756 |
LOGICAL llo1, llo2 |
757 |
c |
758 |
REAL zwmax(klon), zzzmb |
759 |
INTEGER klwmin(klon) ! level of maximum vertical velocity |
760 |
C---------------------------------------------------------------------- |
761 |
ztglace = RTT - 13. |
762 |
c |
763 |
c Chercher le niveau ou la vitesse verticale est maximale: |
764 |
DO i = 1, klon |
765 |
klwmin(i) = klev |
766 |
zwmax(i) = 0.0 |
767 |
ENDDO |
768 |
DO k = klev, 3, -1 |
769 |
DO i = 1, klon |
770 |
IF (pvervel(i,k).LT.zwmax(i)) THEN |
771 |
zwmax(i) = pvervel(i,k) |
772 |
klwmin(i) = k |
773 |
ENDIF |
774 |
ENDDO |
775 |
ENDDO |
776 |
C---------------------------------------------------------------------- |
777 |
C SET DEFAULT VALUES |
778 |
C---------------------------------------------------------------------- |
779 |
DO i = 1, klon |
780 |
IF (.NOT.ldcum(i)) ktype(i)=0 |
781 |
ENDDO |
782 |
c |
783 |
DO k=1,klev |
784 |
DO i = 1, klon |
785 |
plu(i,k)=0. |
786 |
pmfu(i,k)=0. |
787 |
pmfus(i,k)=0. |
788 |
pmfuq(i,k)=0. |
789 |
pmful(i,k)=0. |
790 |
plude(i,k)=0. |
791 |
pdmfup(i,k)=0. |
792 |
IF(.NOT.ldcum(i).OR.ktype(i).EQ.3) klab(i,k)=0 |
793 |
IF(.NOT.ldcum(i).AND.paph(i,k).LT.4.E4) kctop0(i)=k |
794 |
ENDDO |
795 |
ENDDO |
796 |
c |
797 |
DO i = 1, klon |
798 |
IF (ldland(i)) THEN |
799 |
zdland(i)=3.0E4 |
800 |
zdphi=pgeoh(i,kctop0(i))-pgeoh(i,kcbot(i)) |
801 |
IF (ptu(i,kctop0(i)).GE.ztglace) zdland(i)=zdphi |
802 |
zdland(i)=MAX(3.0E4,zdland(i)) |
803 |
zdland(i)=MIN(5.0E4,zdland(i)) |
804 |
ENDIF |
805 |
ENDDO |
806 |
C |
807 |
C Initialiser les valeurs au niveau d'ascendance |
808 |
C |
809 |
DO i = 1, klon |
810 |
kctop(i) = klev-1 |
811 |
IF (.NOT.ldcum(i)) THEN |
812 |
kcbot(i) = klev-1 |
813 |
pmfub(i) = 0. |
814 |
pqu(i,klev) = 0. |
815 |
ENDIF |
816 |
pmfu(i,klev) = pmfub(i) |
817 |
pmfus(i,klev) = pmfub(i)*(RCPD*ptu(i,klev)+pgeoh(i,klev)) |
818 |
pmfuq(i,klev) = pmfub(i)*pqu(i,klev) |
819 |
ENDDO |
820 |
c |
821 |
DO i = 1, klon |
822 |
ldcum(i) = .FALSE. |
823 |
ENDDO |
824 |
C---------------------------------------------------------------------- |
825 |
C DO ASCENT: SUBCLOUD LAYER (klab=1) ,CLOUDS (klab=2) |
826 |
C BY DOING FIRST DRY-ADIABATIC ASCENT AND THEN |
827 |
C BY ADJUSTING T,Q AND L ACCORDINGLY IN *flxadjtq*, |
828 |
C THEN CHECK FOR BUOYANCY AND SET FLAGS ACCORDINGLY |
829 |
C---------------------------------------------------------------------- |
830 |
DO 480 k = klev-1,3,-1 |
831 |
c |
832 |
IF (LMFMID .AND. k.LT.klev-1 .AND. k.GT.klev/2) THEN |
833 |
DO i = 1, klon |
834 |
IF (.NOT.ldcum(i) .AND. klab(i,k+1).EQ.0 .AND. |
835 |
. pqen(i,k).GT.0.9*pqsen(i,k)) THEN |
836 |
ptu(i,k+1) = pten(i,k) +(pgeo(i,k)-pgeoh(i,k+1))/RCPD |
837 |
pqu(i,k+1) = pqen(i,k) |
838 |
plu(i,k+1) = 0.0 |
839 |
zzzmb = MAX(CMFCMIN, -pvervel(i,k)/RG) |
840 |
zmfmax = (paph(i,k)-paph(i,k-1))/(RG*pdtime) |
841 |
pmfub(i) = MIN(zzzmb,zmfmax) |
842 |
pmfu(i,k+1) = pmfub(i) |
843 |
pmfus(i,k+1) = pmfub(i)*(RCPD*ptu(i,k+1)+pgeoh(i,k+1)) |
844 |
pmfuq(i,k+1) = pmfub(i)*pqu(i,k+1) |
845 |
pmful(i,k+1) = 0.0 |
846 |
pdmfup(i,k+1) = 0.0 |
847 |
kcbot(i) = k |
848 |
klab(i,k+1) = 1 |
849 |
ktype(i) = 3 |
850 |
pentr(i) = ENTRMID |
851 |
ENDIF |
852 |
ENDDO |
853 |
ENDIF |
854 |
c |
855 |
is = 0 |
856 |
DO i = 1, klon |
857 |
is = is + klab(i,k+1) |
858 |
IF (klab(i,k+1) .EQ. 0) klab(i,k) = 0 |
859 |
llflag(i) = .FALSE. |
860 |
IF (klab(i,k+1) .GT. 0) llflag(i) = .TRUE. |
861 |
ENDDO |
862 |
IF (is .EQ. 0) GOTO 480 |
863 |
c |
864 |
c calculer le taux d'entrainement et de detrainement |
865 |
c |
866 |
DO i = 1, klon |
867 |
pen_u(i,k) = 0.0 |
868 |
pde_u(i,k) = 0.0 |
869 |
zrho(i)=paph(i,k+1)/(RD*ptenh(i,k+1)) |
870 |
zpbot(i)=paph(i,kcbot(i)) |
871 |
zptop(i)=paph(i,kctop0(i)) |
872 |
ENDDO |
873 |
c |
874 |
DO 125 i = 1, klon |
875 |
IF(ldcum(i)) THEN |
876 |
zdprho=(paph(i,k+1)-paph(i,k))/(RG*zrho(i)) |
877 |
zentr=pentr(i)*pmfu(i,k+1)*zdprho |
878 |
llo1=k.LT.kcbot(i) |
879 |
IF(llo1) pde_u(i,k)=zentr |
880 |
zpmid=0.5*(zpbot(i)+zptop(i)) |
881 |
llo2=llo1.AND.ktype(i).EQ.2.AND. |
882 |
. (zpbot(i)-paph(i,k).LT.0.2E5.OR. |
883 |
. paph(i,k).GT.zpmid) |
884 |
IF(llo2) pen_u(i,k)=zentr |
885 |
llo2=llo1.AND.(ktype(i).EQ.1.OR.ktype(i).EQ.3).AND. |
886 |
. (k.GE.MAX(klwmin(i),kctop0(i)+2).OR.pap(i,k).GT.zpmid) |
887 |
IF(llo2) pen_u(i,k)=zentr |
888 |
llo1=pen_u(i,k).GT.0..AND.(ktype(i).EQ.1.OR.ktype(i).EQ.2) |
889 |
IF(llo1) THEN |
890 |
zentr=zentr*(1.+3.*(1.-MIN(1.,(zpbot(i)-pap(i,k))/1.5E4))) |
891 |
pen_u(i,k)=pen_u(i,k)*(1.+3.*(1.-MIN(1., |
892 |
. (zpbot(i)-pap(i,k))/1.5E4))) |
893 |
pde_u(i,k)=pde_u(i,k)*(1.+3.*(1.-MIN(1., |
894 |
. (zpbot(i)-pap(i,k))/1.5E4))) |
895 |
ENDIF |
896 |
IF(llo2.AND.pqenh(i,k+1).GT.1.E-5) |
897 |
. pen_u(i,k)=zentr+MAX(pqte(i,k),0.)/pqenh(i,k+1)* |
898 |
. zrho(i)*zdprho |
899 |
ENDIF |
900 |
125 CONTINUE |
901 |
c |
902 |
C---------------------------------------------------------------------- |
903 |
c DO ADIABATIC ASCENT FOR ENTRAINING/DETRAINING PLUME |
904 |
C---------------------------------------------------------------------- |
905 |
c |
906 |
DO 420 i = 1, klon |
907 |
IF (llflag(i)) THEN |
908 |
IF (k.LT.kcbot(i)) THEN |
909 |
zmftest = pmfu(i,k+1)+pen_u(i,k)-pde_u(i,k) |
910 |
zmfmax = MIN(zmftest,(paph(i,k)-paph(i,k-1))/(RG*pdtime)) |
911 |
pen_u(i,k)=MAX(pen_u(i,k)-MAX(0.0,zmftest-zmfmax),0.0) |
912 |
ENDIF |
913 |
pde_u(i,k)=MIN(pde_u(i,k),0.75*pmfu(i,k+1)) |
914 |
c calculer le flux de masse du niveau k a partir de celui du k+1 |
915 |
pmfu(i,k)=pmfu(i,k+1)+pen_u(i,k)-pde_u(i,k) |
916 |
c calculer les valeurs Su, Qu et l du niveau k dans le panache montant |
917 |
zqeen=pqenh(i,k+1)*pen_u(i,k) |
918 |
zseen=(RCPD*ptenh(i,k+1)+pgeoh(i,k+1))*pen_u(i,k) |
919 |
zscde=(RCPD*ptu(i,k+1)+pgeoh(i,k+1))*pde_u(i,k) |
920 |
zqude=pqu(i,k+1)*pde_u(i,k) |
921 |
plude(i,k)=plu(i,k+1)*pde_u(i,k) |
922 |
zmfusk=pmfus(i,k+1)+zseen-zscde |
923 |
zmfuqk=pmfuq(i,k+1)+zqeen-zqude |
924 |
zmfulk=pmful(i,k+1) -plude(i,k) |
925 |
plu(i,k)=zmfulk*(1./MAX(CMFCMIN,pmfu(i,k))) |
926 |
pqu(i,k)=zmfuqk*(1./MAX(CMFCMIN,pmfu(i,k))) |
927 |
ptu(i,k)=(zmfusk*(1./MAX(CMFCMIN,pmfu(i,k)))- |
928 |
1 pgeoh(i,k))/RCPD |
929 |
ptu(i,k)=MAX(100.,ptu(i,k)) |
930 |
ptu(i,k)=MIN(400.,ptu(i,k)) |
931 |
zqold(i)=pqu(i,k) |
932 |
ELSE |
933 |
zqold(i)=0.0 |
934 |
ENDIF |
935 |
420 CONTINUE |
936 |
c |
937 |
C---------------------------------------------------------------------- |
938 |
c DO CORRECTIONS FOR MOIST ASCENT BY ADJUSTING T,Q AND L |
939 |
C---------------------------------------------------------------------- |
940 |
c |
941 |
icall = 1 |
942 |
CALL flxadjtq(paph(1,k), ptu(1,k), pqu(1,k), llflag, icall) |
943 |
C |
944 |
DO 440 i = 1, klon |
945 |
IF(llflag(i).AND.pqu(i,k).NE.zqold(i)) THEN |
946 |
klab(i,k) = 2 |
947 |
plu(i,k) = plu(i,k)+zqold(i)-pqu(i,k) |
948 |
zbuo = ptu(i,k)*(1.+RETV*pqu(i,k))- |
949 |
. ptenh(i,k)*(1.+RETV*pqenh(i,k)) |
950 |
IF (klab(i,k+1).EQ.1) zbuo=zbuo+0.5 |
951 |
IF (zbuo.GT.0..AND.pmfu(i,k).GE.0.1*pmfub(i)) THEN |
952 |
kctop(i) = k |
953 |
ldcum(i) = .TRUE. |
954 |
zdnoprc = 1.5E4 |
955 |
IF (ldland(i)) zdnoprc = zdland(i) |
956 |
zprcon = CPRCON |
957 |
IF ((zpbot(i)-paph(i,k)).LT.zdnoprc) zprcon = 0.0 |
958 |
zlnew=plu(i,k)/(1.+zprcon*(pgeoh(i,k)-pgeoh(i,k+1))) |
959 |
pdmfup(i,k)=MAX(0.,(plu(i,k)-zlnew)*pmfu(i,k)) |
960 |
plu(i,k)=zlnew |
961 |
ELSE |
962 |
klab(i,k)=0 |
963 |
pmfu(i,k)=0. |
964 |
ENDIF |
965 |
ENDIF |
966 |
440 CONTINUE |
967 |
DO 455 i = 1, klon |
968 |
IF (llflag(i)) THEN |
969 |
pmful(i,k)=plu(i,k)*pmfu(i,k) |
970 |
pmfus(i,k)=(RCPD*ptu(i,k)+pgeoh(i,k))*pmfu(i,k) |
971 |
pmfuq(i,k)=pqu(i,k)*pmfu(i,k) |
972 |
ENDIF |
973 |
455 CONTINUE |
974 |
C |
975 |
480 CONTINUE |
976 |
C---------------------------------------------------------------------- |
977 |
C DETERMINE CONVECTIVE FLUXES ABOVE NON-BUOYANCY LEVEL |
978 |
C (NOTE: CLOUD VARIABLES LIKE T,Q AND L ARE NOT |
979 |
C AFFECTED BY DETRAINMENT AND ARE ALREADY KNOWN |
980 |
C FROM PREVIOUS CALCULATIONS ABOVE) |
981 |
C---------------------------------------------------------------------- |
982 |
DO i = 1, klon |
983 |
IF (kctop(i).EQ.klev-1) ldcum(i) = .FALSE. |
984 |
kcbot(i) = MAX(kcbot(i),kctop(i)) |
985 |
ENDDO |
986 |
c |
987 |
ldcum(1)=ldcum(1) |
988 |
c |
989 |
is = 0 |
990 |
DO i = 1, klon |
991 |
if (ldcum(i)) is = is + 1 |
992 |
ENDDO |
993 |
kcum = is |
994 |
IF (is.EQ.0) GOTO 800 |
995 |
c |
996 |
DO 530 i = 1, klon |
997 |
IF (ldcum(i)) THEN |
998 |
k=kctop(i)-1 |
999 |
pde_u(i,k)=(1.-CMFCTOP)*pmfu(i,k+1) |
1000 |
plude(i,k)=pde_u(i,k)*plu(i,k+1) |
1001 |
pmfu(i,k)=pmfu(i,k+1)-pde_u(i,k) |
1002 |
zlnew=plu(i,k) |
1003 |
pdmfup(i,k)=MAX(0.,(plu(i,k)-zlnew)*pmfu(i,k)) |
1004 |
plu(i,k)=zlnew |
1005 |
pmfus(i,k)=(RCPD*ptu(i,k)+pgeoh(i,k))*pmfu(i,k) |
1006 |
pmfuq(i,k)=pqu(i,k)*pmfu(i,k) |
1007 |
pmful(i,k)=plu(i,k)*pmfu(i,k) |
1008 |
plude(i,k-1)=pmful(i,k) |
1009 |
ENDIF |
1010 |
530 CONTINUE |
1011 |
C |
1012 |
800 CONTINUE |
1013 |
RETURN |
1014 |
END |
1015 |
SUBROUTINE flxflux(pdtime, pqen, pqsen, ptenh, pqenh, pap |
1016 |
. , paph, ldland, pgeoh, kcbot, kctop, lddraf, kdtop |
1017 |
. , ktype, ldcum, pmfu, pmfd, pmfus, pmfds |
1018 |
. , pmfuq, pmfdq, pmful, plude, pdmfup, pdmfdp |
1019 |
. , pten, prfl, psfl, pdpmel, ktopm2 |
1020 |
. , pmflxr, pmflxs) |
1021 |
use dimens_m |
1022 |
use dimphy |
1023 |
use YOMCST |
1024 |
use yoethf |
1025 |
use fcttre |
1026 |
use yoecumf |
1027 |
IMPLICIT none |
1028 |
C---------------------------------------------------------------------- |
1029 |
C THIS ROUTINE DOES THE FINAL CALCULATION OF CONVECTIVE |
1030 |
C FLUXES IN THE CLOUD LAYER AND IN THE SUBCLOUD LAYER |
1031 |
C---------------------------------------------------------------------- |
1032 |
C |
1033 |
REAL cevapcu(klev) |
1034 |
C ----------------------------------------------------------------- |
1035 |
REAL pqen(klon,klev), pqenh(klon,klev), pqsen(klon,klev) |
1036 |
REAL pten(klon,klev), ptenh(klon,klev) |
1037 |
REAL paph(klon,klev+1), pgeoh(klon,klev) |
1038 |
c |
1039 |
REAL pap(klon,klev) |
1040 |
REAL ztmsmlt, zdelta, zqsat |
1041 |
C |
1042 |
REAL pmfu(klon,klev), pmfus(klon,klev) |
1043 |
REAL pmfd(klon,klev), pmfds(klon,klev) |
1044 |
REAL pmfuq(klon,klev), pmful(klon,klev) |
1045 |
REAL pmfdq(klon,klev) |
1046 |
REAL plude(klon,klev) |
1047 |
REAL pdmfup(klon,klev), pdpmel(klon,klev) |
1048 |
cjq The variable maxpdmfdp(klon) has been introduced by Olivier Boucher |
1049 |
cjq 14/11/00 to fix the problem with the negative precipitation. |
1050 |
REAL pdmfdp(klon,klev), maxpdmfdp(klon,klev) |
1051 |
REAL prfl(klon), psfl(klon) |
1052 |
REAL pmflxr(klon,klev+1), pmflxs(klon,klev+1) |
1053 |
INTEGER kcbot(klon), kctop(klon), ktype(klon) |
1054 |
LOGICAL ldland(klon), ldcum(klon) |
1055 |
INTEGER k, kp, i |
1056 |
REAL zcons1, zcons2, zcucov, ztmelp2 |
1057 |
REAL, intent(in):: pdtime |
1058 |
real zdp, zzp, zfac, zsnmlt, zrfl, zrnew |
1059 |
REAL zrmin, zrfln, zdrfl |
1060 |
REAL zpds, zpdr, zdenom |
1061 |
INTEGER ktopm2, itop, ikb |
1062 |
c |
1063 |
LOGICAL lddraf(klon) |
1064 |
INTEGER kdtop(klon) |
1065 |
c |
1066 |
c |
1067 |
DO 101 k=1,klev |
1068 |
CEVAPCU(k)=1.93E-6*261.*SQRT(1.E3/(38.3*0.293) |
1069 |
1 *SQRT(0.5*(paph(1,k)+paph(1,k+1))/paph(1,klev+1)) ) * 0.5/RG |
1070 |
101 CONTINUE |
1071 |
c |
1072 |
c SPECIFY CONSTANTS |
1073 |
c |
1074 |
zcons1 = RCPD/(RLMLT*RG*pdtime) |
1075 |
zcons2 = 1./(RG*pdtime) |
1076 |
zcucov = 0.05 |
1077 |
ztmelp2 = RTT + 2. |
1078 |
c |
1079 |
c DETERMINE FINAL CONVECTIVE FLUXES |
1080 |
c |
1081 |
itop=klev |
1082 |
DO 110 i = 1, klon |
1083 |
itop=MIN(itop,kctop(i)) |
1084 |
IF (.NOT.ldcum(i) .OR. kdtop(i).LT.kctop(i)) lddraf(i)=.FALSE. |
1085 |
IF(.NOT.ldcum(i)) ktype(i)=0 |
1086 |
110 CONTINUE |
1087 |
c |
1088 |
ktopm2=itop-2 |
1089 |
DO 120 k=ktopm2,klev |
1090 |
DO 115 i = 1, klon |
1091 |
IF(ldcum(i).AND.k.GE.kctop(i)-1) THEN |
1092 |
pmfus(i,k)=pmfus(i,k)-pmfu(i,k)* |
1093 |
. (RCPD*ptenh(i,k)+pgeoh(i,k)) |
1094 |
pmfuq(i,k)=pmfuq(i,k)-pmfu(i,k)*pqenh(i,k) |
1095 |
zdp = 1.5E4 |
1096 |
IF ( ldland(i) ) zdp = 3.E4 |
1097 |
c |
1098 |
c l'eau liquide detrainee est precipitee quand certaines |
1099 |
c conditions sont reunies (sinon, elle est consideree |
1100 |
c evaporee dans l'environnement) |
1101 |
c |
1102 |
IF(paph(i,kcbot(i))-paph(i,kctop(i)).GE.zdp.AND. |
1103 |
. pqen(i,k-1).GT.0.8*pqsen(i,k-1)) |
1104 |
. pdmfup(i,k-1)=pdmfup(i,k-1)+plude(i,k-1) |
1105 |
c |
1106 |
IF(lddraf(i).AND.k.GE.kdtop(i)) THEN |
1107 |
pmfds(i,k)=pmfds(i,k)-pmfd(i,k)* |
1108 |
. (RCPD*ptenh(i,k)+pgeoh(i,k)) |
1109 |
pmfdq(i,k)=pmfdq(i,k)-pmfd(i,k)*pqenh(i,k) |
1110 |
ELSE |
1111 |
pmfd(i,k)=0. |
1112 |
pmfds(i,k)=0. |
1113 |
pmfdq(i,k)=0. |
1114 |
pdmfdp(i,k-1)=0. |
1115 |
END IF |
1116 |
ELSE |
1117 |
pmfu(i,k)=0. |
1118 |
pmfus(i,k)=0. |
1119 |
pmfuq(i,k)=0. |
1120 |
pmful(i,k)=0. |
1121 |
pdmfup(i,k-1)=0. |
1122 |
plude(i,k-1)=0. |
1123 |
pmfd(i,k)=0. |
1124 |
pmfds(i,k)=0. |
1125 |
pmfdq(i,k)=0. |
1126 |
pdmfdp(i,k-1)=0. |
1127 |
ENDIF |
1128 |
115 CONTINUE |
1129 |
120 CONTINUE |
1130 |
c |
1131 |
DO 130 k=ktopm2,klev |
1132 |
DO 125 i = 1, klon |
1133 |
IF(ldcum(i).AND.k.GT.kcbot(i)) THEN |
1134 |
ikb=kcbot(i) |
1135 |
zzp=((paph(i,klev+1)-paph(i,k))/ |
1136 |
. (paph(i,klev+1)-paph(i,ikb))) |
1137 |
IF (ktype(i).EQ.3) zzp = zzp**2 |
1138 |
pmfu(i,k)=pmfu(i,ikb)*zzp |
1139 |
pmfus(i,k)=pmfus(i,ikb)*zzp |
1140 |
pmfuq(i,k)=pmfuq(i,ikb)*zzp |
1141 |
pmful(i,k)=pmful(i,ikb)*zzp |
1142 |
ENDIF |
1143 |
125 CONTINUE |
1144 |
130 CONTINUE |
1145 |
c |
1146 |
c CALCULATE RAIN/SNOW FALL RATES |
1147 |
c CALCULATE MELTING OF SNOW |
1148 |
c CALCULATE EVAPORATION OF PRECIP |
1149 |
c |
1150 |
DO k = 1, klev+1 |
1151 |
DO i = 1, klon |
1152 |
pmflxr(i,k) = 0.0 |
1153 |
pmflxs(i,k) = 0.0 |
1154 |
ENDDO |
1155 |
ENDDO |
1156 |
DO k = ktopm2, klev |
1157 |
DO i = 1, klon |
1158 |
IF (ldcum(i)) THEN |
1159 |
IF (pmflxs(i,k).GT.0.0 .AND. pten(i,k).GT.ztmelp2) THEN |
1160 |
zfac=zcons1*(paph(i,k+1)-paph(i,k)) |
1161 |
zsnmlt=MIN(pmflxs(i,k),zfac*(pten(i,k)-ztmelp2)) |
1162 |
pdpmel(i,k)=zsnmlt |
1163 |
ztmsmlt=pten(i,k)-zsnmlt/zfac |
1164 |
zdelta=MAX(0.,SIGN(1.,RTT-ztmsmlt)) |
1165 |
zqsat=R2ES*FOEEW(ztmsmlt, zdelta) / pap(i,k) |
1166 |
zqsat=MIN(0.5,zqsat) |
1167 |
zqsat=zqsat/(1.-RETV *zqsat) |
1168 |
pqsen(i,k) = zqsat |
1169 |
ENDIF |
1170 |
IF (pten(i,k).GT.RTT) THEN |
1171 |
pmflxr(i,k+1)=pmflxr(i,k)+pdmfup(i,k)+pdmfdp(i,k)+pdpmel(i,k) |
1172 |
pmflxs(i,k+1)=pmflxs(i,k)-pdpmel(i,k) |
1173 |
ELSE |
1174 |
pmflxs(i,k+1)=pmflxs(i,k)+pdmfup(i,k)+pdmfdp(i,k) |
1175 |
pmflxr(i,k+1)=pmflxr(i,k) |
1176 |
ENDIF |
1177 |
c si la precipitation est negative, on ajuste le plux du |
1178 |
c panache descendant pour eliminer la negativite |
1179 |
IF ((pmflxr(i,k+1)+pmflxs(i,k+1)).LT.0.0) THEN |
1180 |
pdmfdp(i,k) = -pmflxr(i,k)-pmflxs(i,k)-pdmfup(i,k) |
1181 |
pmflxr(i,k+1) = 0.0 |
1182 |
pmflxs(i,k+1) = 0.0 |
1183 |
pdpmel(i,k) = 0.0 |
1184 |
ENDIF |
1185 |
ENDIF |
1186 |
ENDDO |
1187 |
ENDDO |
1188 |
c |
1189 |
cjq The new variable is initialized here. |
1190 |
cjq It contains the humidity which is fed to the downdraft |
1191 |
cjq by evaporation of precipitation in the column below the base |
1192 |
cjq of convection. |
1193 |
cjq |
1194 |
cjq In the former version, this term has been subtracted from precip |
1195 |
cjq as well as the evaporation. |
1196 |
cjq |
1197 |
DO k = 1, klev |
1198 |
DO i = 1, klon |
1199 |
maxpdmfdp(i,k)=0.0 |
1200 |
ENDDO |
1201 |
ENDDO |
1202 |
DO k = 1, klev |
1203 |
DO kp = k, klev |
1204 |
DO i = 1, klon |
1205 |
maxpdmfdp(i,k)=maxpdmfdp(i,k)+pdmfdp(i,kp) |
1206 |
ENDDO |
1207 |
ENDDO |
1208 |
ENDDO |
1209 |
cjq End of initialization |
1210 |
c |
1211 |
DO k = ktopm2, klev |
1212 |
DO i = 1, klon |
1213 |
IF (ldcum(i) .AND. k.GE.kcbot(i)) THEN |
1214 |
zrfl = pmflxr(i,k) + pmflxs(i,k) |
1215 |
IF (zrfl.GT.1.0E-20) THEN |
1216 |
zrnew=(MAX(0.,SQRT(zrfl/zcucov)- |
1217 |
. CEVAPCU(k)*(paph(i,k+1)-paph(i,k))* |
1218 |
. MAX(0.,pqsen(i,k)-pqen(i,k))))**2*zcucov |
1219 |
zrmin=zrfl-zcucov*MAX(0.,0.8*pqsen(i,k)-pqen(i,k)) |
1220 |
. *zcons2*(paph(i,k+1)-paph(i,k)) |
1221 |
zrnew=MAX(zrnew,zrmin) |
1222 |
zrfln=MAX(zrnew,0.) |
1223 |
zdrfl=MIN(0.,zrfln-zrfl) |
1224 |
cjq At least the amount of precipiation needed to feed the downdraft |
1225 |
cjq with humidity below the base of convection has to be left and can't |
1226 |
cjq be evaporated (surely the evaporation can't be positive): |
1227 |
zdrfl=MAX(zdrfl, |
1228 |
. MIN(-pmflxr(i,k)-pmflxs(i,k)-maxpdmfdp(i,k),0.0)) |
1229 |
cjq End of insertion |
1230 |
c |
1231 |
zdenom=1.0/MAX(1.0E-20,pmflxr(i,k)+pmflxs(i,k)) |
1232 |
IF (pten(i,k).GT.RTT) THEN |
1233 |
zpdr = pdmfdp(i,k) |
1234 |
zpds = 0.0 |
1235 |
ELSE |
1236 |
zpdr = 0.0 |
1237 |
zpds = pdmfdp(i,k) |
1238 |
ENDIF |
1239 |
pmflxr(i,k+1) = pmflxr(i,k) + zpdr + pdpmel(i,k) |
1240 |
. + zdrfl*pmflxr(i,k)*zdenom |
1241 |
pmflxs(i,k+1) = pmflxs(i,k) + zpds - pdpmel(i,k) |
1242 |
. + zdrfl*pmflxs(i,k)*zdenom |
1243 |
pdmfup(i,k) = pdmfup(i,k) + zdrfl |
1244 |
ELSE |
1245 |
pmflxr(i,k+1) = 0.0 |
1246 |
pmflxs(i,k+1) = 0.0 |
1247 |
pdmfdp(i,k) = 0.0 |
1248 |
pdpmel(i,k) = 0.0 |
1249 |
ENDIF |
1250 |
if (pmflxr(i,k) + pmflxs(i,k).lt.-1.e-26) |
1251 |
. write(*,*) 'precip. < 1e-16 ',pmflxr(i,k) + pmflxs(i,k) |
1252 |
ENDIF |
1253 |
ENDDO |
1254 |
ENDDO |
1255 |
c |
1256 |
DO 210 i = 1, klon |
1257 |
prfl(i) = pmflxr(i,klev+1) |
1258 |
psfl(i) = pmflxs(i,klev+1) |
1259 |
210 CONTINUE |
1260 |
c |
1261 |
RETURN |
1262 |
END |
1263 |
SUBROUTINE flxdtdq(ktopm2, paph, ldcum, pten |
1264 |
. , pmfus, pmfds, pmfuq, pmfdq, pmful, pdmfup, pdmfdp |
1265 |
. , pdpmel, dt_con, dq_con) |
1266 |
use dimens_m |
1267 |
use dimphy |
1268 |
use YOMCST |
1269 |
use yoethf |
1270 |
use yoecumf |
1271 |
IMPLICIT none |
1272 |
c---------------------------------------------------------------------- |
1273 |
c calculer les tendances T et Q |
1274 |
c---------------------------------------------------------------------- |
1275 |
C ----------------------------------------------------------------- |
1276 |
LOGICAL llo1 |
1277 |
C |
1278 |
REAL pten(klon,klev), paph(klon,klev+1) |
1279 |
REAL pmfus(klon,klev), pmfuq(klon,klev), pmful(klon,klev) |
1280 |
REAL pmfds(klon,klev), pmfdq(klon,klev) |
1281 |
REAL pdmfup(klon,klev) |
1282 |
REAL pdmfdp(klon,klev) |
1283 |
REAL pdpmel(klon,klev) |
1284 |
LOGICAL ldcum(klon) |
1285 |
REAL dt_con(klon,klev), dq_con(klon,klev) |
1286 |
c |
1287 |
INTEGER ktopm2 |
1288 |
c |
1289 |
INTEGER i, k |
1290 |
REAL zalv, zdtdt, zdqdt |
1291 |
c |
1292 |
DO 210 k=ktopm2,klev-1 |
1293 |
DO 220 i = 1, klon |
1294 |
IF (ldcum(i)) THEN |
1295 |
llo1 = (pten(i,k)-RTT).GT.0. |
1296 |
zalv = RLSTT |
1297 |
IF (llo1) zalv = RLVTT |
1298 |
zdtdt=RG/(paph(i,k+1)-paph(i,k))/RCPD |
1299 |
. *(pmfus(i,k+1)-pmfus(i,k) |
1300 |
. +pmfds(i,k+1)-pmfds(i,k) |
1301 |
. -RLMLT*pdpmel(i,k) |
1302 |
. -zalv*(pmful(i,k+1)-pmful(i,k)-pdmfup(i,k)-pdmfdp(i,k)) |
1303 |
. ) |
1304 |
dt_con(i,k)=zdtdt |
1305 |
zdqdt=RG/(paph(i,k+1)-paph(i,k)) |
1306 |
. *(pmfuq(i,k+1)-pmfuq(i,k) |
1307 |
. +pmfdq(i,k+1)-pmfdq(i,k) |
1308 |
. +pmful(i,k+1)-pmful(i,k)-pdmfup(i,k)-pdmfdp(i,k)) |
1309 |
dq_con(i,k)=zdqdt |
1310 |
ENDIF |
1311 |
220 CONTINUE |
1312 |
210 CONTINUE |
1313 |
C |
1314 |
k = klev |
1315 |
DO 230 i = 1, klon |
1316 |
IF (ldcum(i)) THEN |
1317 |
llo1 = (pten(i,k)-RTT).GT.0. |
1318 |
zalv = RLSTT |
1319 |
IF (llo1) zalv = RLVTT |
1320 |
zdtdt=-RG/(paph(i,k+1)-paph(i,k))/RCPD |
1321 |
. *(pmfus(i,k)+pmfds(i,k)+RLMLT*pdpmel(i,k) |
1322 |
. -zalv*(pmful(i,k)+pdmfup(i,k)+pdmfdp(i,k))) |
1323 |
dt_con(i,k)=zdtdt |
1324 |
zdqdt=-RG/(paph(i,k+1)-paph(i,k)) |
1325 |
. *(pmfuq(i,k)+pmfdq(i,k)+pmful(i,k) |
1326 |
. +pdmfup(i,k)+pdmfdp(i,k)) |
1327 |
dq_con(i,k)=zdqdt |
1328 |
ENDIF |
1329 |
230 CONTINUE |
1330 |
C |
1331 |
RETURN |
1332 |
END |
1333 |
SUBROUTINE flxdlfs(ptenh, pqenh, pgeoh, paph, ptu, pqu, |
1334 |
. ldcum, kcbot, kctop, pmfub, prfl, ptd, pqd, |
1335 |
. pmfd, pmfds, pmfdq, pdmfdp, kdtop, lddraf) |
1336 |
use dimens_m |
1337 |
use dimphy |
1338 |
use YOMCST |
1339 |
use yoethf |
1340 |
use yoecumf |
1341 |
IMPLICIT none |
1342 |
C |
1343 |
C---------------------------------------------------------------------- |
1344 |
C THIS ROUTINE CALCULATES LEVEL OF FREE SINKING FOR |
1345 |
C CUMULUS DOWNDRAFTS AND SPECIFIES T,Q,U AND V VALUES |
1346 |
C |
1347 |
C TO PRODUCE LFS-VALUES FOR CUMULUS DOWNDRAFTS |
1348 |
C FOR MASSFLUX CUMULUS PARAMETERIZATION |
1349 |
C |
1350 |
C INPUT ARE ENVIRONMENTAL VALUES OF T,Q,U,V,P,PHI |
1351 |
C AND UPDRAFT VALUES T,Q,U AND V AND ALSO |
1352 |
C CLOUD BASE MASSFLUX AND CU-PRECIPITATION RATE. |
1353 |
C IT RETURNS T,Q,U AND V VALUES AND MASSFLUX AT LFS. |
1354 |
C |
1355 |
C CHECK FOR NEGATIVE BUOYANCY OF AIR OF EQUAL PARTS OF |
1356 |
C MOIST ENVIRONMENTAL AIR AND CLOUD AIR. |
1357 |
C---------------------------------------------------------------------- |
1358 |
C |
1359 |
REAL ptenh(klon,klev) |
1360 |
REAL pqenh(klon,klev) |
1361 |
REAL pgeoh(klon,klev), paph(klon,klev+1) |
1362 |
REAL ptu(klon,klev), pqu(klon,klev) |
1363 |
REAL pmfub(klon) |
1364 |
REAL prfl(klon) |
1365 |
C |
1366 |
REAL ptd(klon,klev), pqd(klon,klev) |
1367 |
REAL pmfd(klon,klev), pmfds(klon,klev), pmfdq(klon,klev) |
1368 |
REAL pdmfdp(klon,klev) |
1369 |
INTEGER kcbot(klon), kctop(klon), kdtop(klon) |
1370 |
LOGICAL ldcum(klon), lddraf(klon) |
1371 |
C |
1372 |
REAL ztenwb(klon,klev), zqenwb(klon,klev), zcond(klon) |
1373 |
REAL zttest, zqtest, zbuo, zmftop |
1374 |
LOGICAL llo2(klon) |
1375 |
INTEGER i, k, is, icall |
1376 |
C---------------------------------------------------------------------- |
1377 |
DO i= 1, klon |
1378 |
lddraf(i)=.FALSE. |
1379 |
kdtop(i)=klev+1 |
1380 |
ENDDO |
1381 |
C |
1382 |
C---------------------------------------------------------------------- |
1383 |
C DETERMINE LEVEL OF FREE SINKING BY |
1384 |
C DOING A SCAN FROM TOP TO BASE OF CUMULUS CLOUDS |
1385 |
C |
1386 |
C FOR EVERY POINT AND PROCEED AS FOLLOWS: |
1387 |
C (1) DETEMINE WET BULB ENVIRONMENTAL T AND Q |
1388 |
C (2) DO MIXING WITH CUMULUS CLOUD AIR |
1389 |
C (3) CHECK FOR NEGATIVE BUOYANCY |
1390 |
C |
1391 |
C THE ASSUMPTION IS THAT AIR OF DOWNDRAFTS IS MIXTURE |
1392 |
C OF 50% CLOUD AIR + 50% ENVIRONMENTAL AIR AT WET BULB |
1393 |
C TEMPERATURE (I.E. WHICH BECAME SATURATED DUE TO |
1394 |
C EVAPORATION OF RAIN AND CLOUD WATER) |
1395 |
C---------------------------------------------------------------------- |
1396 |
C |
1397 |
DO 290 k = 3, klev-3 |
1398 |
C |
1399 |
is=0 |
1400 |
DO 212 i= 1, klon |
1401 |
ztenwb(i,k)=ptenh(i,k) |
1402 |
zqenwb(i,k)=pqenh(i,k) |
1403 |
llo2(i) = ldcum(i).AND.prfl(i).GT.0. |
1404 |
. .AND..NOT.lddraf(i) |
1405 |
. .AND.(k.LT.kcbot(i).AND.k.GT.kctop(i)) |
1406 |
IF ( llo2(i) ) is = is + 1 |
1407 |
212 CONTINUE |
1408 |
IF(is.EQ.0) GO TO 290 |
1409 |
C |
1410 |
icall=2 |
1411 |
CALL flxadjtq(paph(1,k), ztenwb(1,k), zqenwb(1,k), llo2, icall) |
1412 |
C |
1413 |
C---------------------------------------------------------------------- |
1414 |
C DO MIXING OF CUMULUS AND ENVIRONMENTAL AIR |
1415 |
C AND CHECK FOR NEGATIVE BUOYANCY. |
1416 |
C THEN SET VALUES FOR DOWNDRAFT AT LFS. |
1417 |
C---------------------------------------------------------------------- |
1418 |
DO 222 i= 1, klon |
1419 |
IF (llo2(i)) THEN |
1420 |
zttest=0.5*(ptu(i,k)+ztenwb(i,k)) |
1421 |
zqtest=0.5*(pqu(i,k)+zqenwb(i,k)) |
1422 |
zbuo=zttest*(1.+RETV*zqtest)- |
1423 |
. ptenh(i,k)*(1.+RETV *pqenh(i,k)) |
1424 |
zcond(i)=pqenh(i,k)-zqenwb(i,k) |
1425 |
zmftop=-CMFDEPS*pmfub(i) |
1426 |
IF (zbuo.LT.0..AND.prfl(i).GT.10.*zmftop*zcond(i)) THEN |
1427 |
kdtop(i)=k |
1428 |
lddraf(i)=.TRUE. |
1429 |
ptd(i,k)=zttest |
1430 |
pqd(i,k)=zqtest |
1431 |
pmfd(i,k)=zmftop |
1432 |
pmfds(i,k)=pmfd(i,k)*(RCPD*ptd(i,k)+pgeoh(i,k)) |
1433 |
pmfdq(i,k)=pmfd(i,k)*pqd(i,k) |
1434 |
pdmfdp(i,k-1)=-0.5*pmfd(i,k)*zcond(i) |
1435 |
prfl(i)=prfl(i)+pdmfdp(i,k-1) |
1436 |
ENDIF |
1437 |
ENDIF |
1438 |
222 CONTINUE |
1439 |
c |
1440 |
290 CONTINUE |
1441 |
C |
1442 |
RETURN |
1443 |
END |
1444 |
SUBROUTINE flxddraf(ptenh, pqenh, pgeoh, paph, prfl, |
1445 |
. ptd, pqd, pmfd, pmfds, pmfdq, pdmfdp, |
1446 |
. lddraf, pen_d, pde_d) |
1447 |
use dimens_m |
1448 |
use dimphy |
1449 |
use YOMCST |
1450 |
use yoethf |
1451 |
use yoecumf |
1452 |
IMPLICIT none |
1453 |
C |
1454 |
C---------------------------------------------------------------------- |
1455 |
C THIS ROUTINE CALCULATES CUMULUS DOWNDRAFT DESCENT |
1456 |
C |
1457 |
C TO PRODUCE THE VERTICAL PROFILES FOR CUMULUS DOWNDRAFTS |
1458 |
C (I.E. T,Q,U AND V AND FLUXES) |
1459 |
C |
1460 |
C INPUT IS T,Q,P,PHI,U,V AT HALF LEVELS. |
1461 |
C IT RETURNS FLUXES OF S,Q AND EVAPORATION RATE |
1462 |
C AND U,V AT LEVELS WHERE DOWNDRAFT OCCURS |
1463 |
C |
1464 |
C CALCULATE MOIST DESCENT FOR ENTRAINING/DETRAINING PLUME BY |
1465 |
C A) MOVING AIR DRY-ADIABATICALLY TO NEXT LEVEL BELOW AND |
1466 |
C B) CORRECTING FOR EVAPORATION TO OBTAIN SATURATED STATE. |
1467 |
C |
1468 |
C---------------------------------------------------------------------- |
1469 |
C |
1470 |
REAL ptenh(klon,klev), pqenh(klon,klev) |
1471 |
REAL pgeoh(klon,klev), paph(klon,klev+1) |
1472 |
C |
1473 |
REAL ptd(klon,klev), pqd(klon,klev) |
1474 |
REAL pmfd(klon,klev), pmfds(klon,klev), pmfdq(klon,klev) |
1475 |
REAL pdmfdp(klon,klev) |
1476 |
REAL prfl(klon) |
1477 |
LOGICAL lddraf(klon) |
1478 |
C |
1479 |
REAL pen_d(klon,klev), pde_d(klon,klev), zcond(klon) |
1480 |
LOGICAL llo2(klon), llo1 |
1481 |
INTEGER i, k, is, icall, itopde |
1482 |
REAL zentr, zseen, zqeen, zsdde, zqdde, zmfdsk, zmfdqk, zdmfdp |
1483 |
REAL zbuo |
1484 |
C---------------------------------------------------------------------- |
1485 |
C CALCULATE MOIST DESCENT FOR CUMULUS DOWNDRAFT BY |
1486 |
C (A) CALCULATING ENTRAINMENT RATES, ASSUMING |
1487 |
C LINEAR DECREASE OF MASSFLUX IN PBL |
1488 |
C (B) DOING MOIST DESCENT - EVAPORATIVE COOLING |
1489 |
C AND MOISTENING IS CALCULATED IN *flxadjtq* |
1490 |
C (C) CHECKING FOR NEGATIVE BUOYANCY AND |
1491 |
C SPECIFYING FINAL T,Q,U,V AND DOWNWARD FLUXES |
1492 |
C |
1493 |
DO 180 k = 3, klev |
1494 |
c |
1495 |
is = 0 |
1496 |
DO i = 1, klon |
1497 |
llo2(i)=lddraf(i).AND.pmfd(i,k-1).LT.0. |
1498 |
IF (llo2(i)) is = is + 1 |
1499 |
ENDDO |
1500 |
IF (is.EQ.0) GOTO 180 |
1501 |
c |
1502 |
DO i = 1, klon |
1503 |
IF (llo2(i)) THEN |
1504 |
zentr = ENTRDD*pmfd(i,k-1)*RD*ptenh(i,k-1)/ |
1505 |
. (RG*paph(i,k-1))*(paph(i,k)-paph(i,k-1)) |
1506 |
pen_d(i,k) = zentr |
1507 |
pde_d(i,k) = zentr |
1508 |
ENDIF |
1509 |
ENDDO |
1510 |
c |
1511 |
itopde = klev-2 |
1512 |
IF (k.GT.itopde) THEN |
1513 |
DO i = 1, klon |
1514 |
IF (llo2(i)) THEN |
1515 |
pen_d(i,k)=0. |
1516 |
pde_d(i,k)=pmfd(i,itopde)* |
1517 |
. (paph(i,k)-paph(i,k-1))/(paph(i,klev+1)-paph(i,itopde)) |
1518 |
ENDIF |
1519 |
ENDDO |
1520 |
ENDIF |
1521 |
C |
1522 |
DO i = 1, klon |
1523 |
IF (llo2(i)) THEN |
1524 |
pmfd(i,k) = pmfd(i,k-1)+pen_d(i,k)-pde_d(i,k) |
1525 |
zseen = (RCPD*ptenh(i,k-1)+pgeoh(i,k-1))*pen_d(i,k) |
1526 |
zqeen = pqenh(i,k-1)*pen_d(i,k) |
1527 |
zsdde = (RCPD*ptd(i,k-1)+pgeoh(i,k-1))*pde_d(i,k) |
1528 |
zqdde = pqd(i,k-1)*pde_d(i,k) |
1529 |
zmfdsk = pmfds(i,k-1)+zseen-zsdde |
1530 |
zmfdqk = pmfdq(i,k-1)+zqeen-zqdde |
1531 |
pqd(i,k) = zmfdqk*(1./MIN(-CMFCMIN,pmfd(i,k))) |
1532 |
ptd(i,k) = (zmfdsk*(1./MIN(-CMFCMIN,pmfd(i,k)))- |
1533 |
. pgeoh(i,k))/RCPD |
1534 |
ptd(i,k) = MIN(400.,ptd(i,k)) |
1535 |
ptd(i,k) = MAX(100.,ptd(i,k)) |
1536 |
zcond(i) = pqd(i,k) |
1537 |
ENDIF |
1538 |
ENDDO |
1539 |
C |
1540 |
icall = 2 |
1541 |
CALL flxadjtq(paph(1,k), ptd(1,k), pqd(1,k), llo2, icall) |
1542 |
C |
1543 |
DO i = 1, klon |
1544 |
IF (llo2(i)) THEN |
1545 |
zcond(i) = zcond(i)-pqd(i,k) |
1546 |
zbuo = ptd(i,k)*(1.+RETV *pqd(i,k))- |
1547 |
. ptenh(i,k)*(1.+RETV *pqenh(i,k)) |
1548 |
llo1 = zbuo.LT.0..AND.(prfl(i)-pmfd(i,k)*zcond(i).GT.0.) |
1549 |
IF (.not.llo1) pmfd(i,k) = 0.0 |
1550 |
pmfds(i,k) = (RCPD*ptd(i,k)+pgeoh(i,k))*pmfd(i,k) |
1551 |
pmfdq(i,k) = pqd(i,k)*pmfd(i,k) |
1552 |
zdmfdp = -pmfd(i,k)*zcond(i) |
1553 |
pdmfdp(i,k-1) = zdmfdp |
1554 |
prfl(i) = prfl(i)+zdmfdp |
1555 |
ENDIF |
1556 |
ENDDO |
1557 |
c |
1558 |
180 CONTINUE |
1559 |
RETURN |
1560 |
END |
1561 |
SUBROUTINE flxadjtq(pp, pt, pq, ldflag, kcall) |
1562 |
use dimens_m |
1563 |
use dimphy |
1564 |
use YOMCST |
1565 |
use yoethf |
1566 |
use fcttre |
1567 |
IMPLICIT none |
1568 |
c====================================================================== |
1569 |
c Objet: ajustement entre T et Q |
1570 |
c====================================================================== |
1571 |
C NOTE: INPUT PARAMETER kcall DEFINES CALCULATION AS |
1572 |
C kcall=0 ENV. T AND QS IN*CUINI* |
1573 |
C kcall=1 CONDENSATION IN UPDRAFTS (E.G. CUBASE, CUASC) |
1574 |
C kcall=2 EVAPORATION IN DOWNDRAFTS (E.G. CUDLFS,CUDDRAF) |
1575 |
C |
1576 |
C |
1577 |
REAL pt(klon), pq(klon), pp(klon) |
1578 |
LOGICAL ldflag(klon) |
1579 |
INTEGER kcall |
1580 |
c |
1581 |
REAL zcond(klon), zcond1 |
1582 |
REAL Z5alvcp, z5alscp, zalvdcp, zalsdcp |
1583 |
REAL zdelta, zcvm5, zldcp, zqsat, zcor |
1584 |
INTEGER is, i |
1585 |
C |
1586 |
z5alvcp = r5les*RLVTT/RCPD |
1587 |
z5alscp = r5ies*RLSTT/RCPD |
1588 |
zalvdcp = rlvtt/RCPD |
1589 |
zalsdcp = rlstt/RCPD |
1590 |
C |
1591 |
|
1592 |
DO i = 1, klon |
1593 |
zcond(i) = 0.0 |
1594 |
ENDDO |
1595 |
|
1596 |
DO 210 i =1, klon |
1597 |
IF (ldflag(i)) THEN |
1598 |
zdelta = MAX(0.,SIGN(1.,RTT-pt(i))) |
1599 |
zcvm5 = z5alvcp*(1.-zdelta) + zdelta*z5alscp |
1600 |
zldcp = zalvdcp*(1.-zdelta) + zdelta*zalsdcp |
1601 |
zqsat = R2ES*FOEEW(pt(i),zdelta) / pp(i) |
1602 |
zqsat = MIN(0.5,zqsat) |
1603 |
zcor = 1./(1.-RETV*zqsat) |
1604 |
zqsat = zqsat*zcor |
1605 |
zcond(i) = (pq(i)-zqsat) |
1606 |
. / (1. + FOEDE(pt(i), zdelta, zcvm5, zqsat, zcor)) |
1607 |
IF (kcall.EQ.1) zcond(i) = MAX(zcond(i),0.) |
1608 |
IF (kcall.EQ.2) zcond(i) = MIN(zcond(i),0.) |
1609 |
pt(i) = pt(i) + zldcp*zcond(i) |
1610 |
pq(i) = pq(i) - zcond(i) |
1611 |
ENDIF |
1612 |
210 CONTINUE |
1613 |
C |
1614 |
is = 0 |
1615 |
DO i =1, klon |
1616 |
IF (zcond(i).NE.0.) is = is + 1 |
1617 |
ENDDO |
1618 |
IF (is.EQ.0) GOTO 230 |
1619 |
C |
1620 |
DO 220 i = 1, klon |
1621 |
IF(ldflag(i).AND.zcond(i).NE.0.) THEN |
1622 |
zdelta = MAX(0.,SIGN(1.,RTT-pt(i))) |
1623 |
zcvm5 = z5alvcp*(1.-zdelta) + zdelta*z5alscp |
1624 |
zldcp = zalvdcp*(1.-zdelta) + zdelta*zalsdcp |
1625 |
zqsat = R2ES* FOEEW(pt(i),zdelta) / pp(i) |
1626 |
zqsat = MIN(0.5,zqsat) |
1627 |
zcor = 1./(1.-RETV*zqsat) |
1628 |
zqsat = zqsat*zcor |
1629 |
zcond1 = (pq(i)-zqsat) |
1630 |
. / (1. + FOEDE(pt(i),zdelta,zcvm5,zqsat,zcor)) |
1631 |
pt(i) = pt(i) + zldcp*zcond1 |
1632 |
pq(i) = pq(i) - zcond1 |
1633 |
ENDIF |
1634 |
220 CONTINUE |
1635 |
C |
1636 |
230 CONTINUE |
1637 |
RETURN |
1638 |
END |
1639 |
SUBROUTINE flxsetup |
1640 |
use yoecumf |
1641 |
IMPLICIT none |
1642 |
C |
1643 |
C THIS ROUTINE DEFINES DISPOSABLE PARAMETERS FOR MASSFLUX SCHEME |
1644 |
C |
1645 |
C |
1646 |
ENTRPEN=1.0E-4 ! ENTRAINMENT RATE FOR PENETRATIVE CONVECTION |
1647 |
ENTRSCV=3.0E-4 ! ENTRAINMENT RATE FOR SHALLOW CONVECTION |
1648 |
ENTRMID=1.0E-4 ! ENTRAINMENT RATE FOR MIDLEVEL CONVECTION |
1649 |
ENTRDD =2.0E-4 ! ENTRAINMENT RATE FOR DOWNDRAFTS |
1650 |
CMFCTOP=0.33 ! RELATIVE CLOUD MASSFLUX AT LEVEL ABOVE NONBUO LEVEL |
1651 |
CMFCMAX=1.0 ! MAXIMUM MASSFLUX VALUE ALLOWED FOR UPDRAFTS ETC |
1652 |
CMFCMIN=1.E-10 ! MINIMUM MASSFLUX VALUE (FOR SAFETY) |
1653 |
CMFDEPS=0.3 ! FRACTIONAL MASSFLUX FOR DOWNDRAFTS AT LFS |
1654 |
CPRCON =2.0E-4 ! CONVERSION FROM CLOUD WATER TO RAIN |
1655 |
RHCDD=1. ! RELATIVE SATURATION IN DOWNDRAFRS (NO LONGER USED) |
1656 |
c (FORMULATION IMPLIES SATURATION) |
1657 |
LMFPEN = .TRUE. |
1658 |
LMFSCV = .TRUE. |
1659 |
LMFMID = .TRUE. |
1660 |
LMFDD = .TRUE. |
1661 |
LMFDUDV = .TRUE. |
1662 |
c |
1663 |
RETURN |
1664 |
END |