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guez |
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SUBROUTINE drag_noro(nlon,nlev,dtime,paprs,pplay,pmea,pstd,psig,pgam,pthe, & |
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ppic,pval,kgwd,kdx,ktest,t,u,v,pulow,pvlow,pustr,pvstr,d_t,d_u,d_v) |
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! $Header: /home/cvsroot/LMDZ4/libf/phylmd/orografi.F,v 1.4 2005/12/01 11:27:29 |
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USE dimens_m |
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USE dimphy |
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USE yomcst |
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IMPLICIT NONE |
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!====================================================================== |
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! Auteur(s): F.Lott (LMD/CNRS) date: 19950201 |
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! Objet: Frottement de la montagne Interface |
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!====================================================================== |
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! Arguments: |
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! dtime---input-R- pas d'integration (s) |
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! paprs---input-R-pression pour chaque inter-couche (en Pa) |
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! pplay---input-R-pression pour le mileu de chaque couche (en Pa) |
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! t-------input-R-temperature (K) |
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! u-------input-R-vitesse horizontale (m/s) |
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! v-------input-R-vitesse horizontale (m/s) |
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! d_t-----output-R-increment de la temperature |
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! d_u-----output-R-increment de la vitesse u |
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! d_v-----output-R-increment de la vitesse v |
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!====================================================================== |
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! ARGUMENTS |
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INTEGER nlon, nlev |
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REAL, INTENT (IN) :: dtime |
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REAL, INTENT (IN) :: paprs(klon,klev+1) |
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REAL, INTENT (IN) :: pplay(klon,klev) |
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REAL pmea(nlon) |
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REAL, INTENT (IN) :: pstd(nlon), psig(nlon) |
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REAL pgam(nlon), pthe(nlon) |
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REAL ppic(nlon), pval(nlon) |
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REAL pulow(nlon), pvlow(nlon), pustr(nlon), pvstr(nlon) |
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REAL t(nlon,nlev), u(nlon,nlev), v(nlon,nlev) |
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REAL d_t(nlon,nlev), d_u(nlon,nlev), d_v(nlon,nlev) |
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INTEGER i, k, kgwd, kdx(nlon), ktest(nlon) |
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! Variables locales: |
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REAL zgeom(klon,klev) |
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REAL pdtdt(klon,klev), pdudt(klon,klev), pdvdt(klon,klev) |
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REAL pt(klon,klev), pu(klon,klev), pv(klon,klev) |
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REAL papmf(klon,klev), papmh(klon,klev+1) |
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! initialiser les variables de sortie (pour securite) |
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DO i = 1, klon |
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pulow(i) = 0.0 |
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pvlow(i) = 0.0 |
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pustr(i) = 0.0 |
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pvstr(i) = 0.0 |
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END DO |
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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_u(i,k) = 0.0 |
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d_v(i,k) = 0.0 |
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pdudt(i,k) = 0.0 |
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pdvdt(i,k) = 0.0 |
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pdtdt(i,k) = 0.0 |
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END DO |
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END DO |
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! preparer les variables d'entree (attention: l'ordre des niveaux |
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! 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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pu(i,k) = u(i,klev-k+1) |
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pv(i,k) = v(i,klev-k+1) |
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papmf(i,k) = pplay(i,klev-k+1) |
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END DO |
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END DO |
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DO k = 1, klev + 1 |
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DO i = 1, klon |
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papmh(i,k) = paprs(i,klev-k+2) |
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END DO |
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END DO |
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DO i = 1, klon |
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zgeom(i,klev) = rd*pt(i,klev)*log(papmh(i,klev+1)/papmf(i,klev)) |
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END DO |
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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) + rd*(pt(i,k)+pt(i,k+1))/2.0*log(papmf(i,k & |
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+1)/papmf(i,k)) |
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END DO |
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END DO |
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! appeler la routine principale |
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CALL orodrag(klon,klev,kgwd,kdx,ktest,dtime,papmh,papmf,zgeom,pt,pu,pv, & |
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pmea,pstd,psig,pgam,pthe,ppic,pval,pulow,pvlow,pdudt,pdvdt,pdtdt) |
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DO k = 1, klev |
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DO i = 1, klon |
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d_u(i,klev+1-k) = dtime*pdudt(i,k) |
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d_v(i,klev+1-k) = dtime*pdvdt(i,k) |
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d_t(i,klev+1-k) = dtime*pdtdt(i,k) |
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pustr(i) = pustr(i) & |
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+ pdudt(i,k)*(papmh(i,k+1)-papmh(i,k))/rg |
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pvstr(i) = pvstr(i) & |
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+ pdvdt(i,k)*(papmh(i,k+1)-papmh(i,k))/rg |
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END DO |
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END DO |
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RETURN |
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END |
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