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! |
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! $Header: /home/cvsroot/LMDZ4/libf/phylmd/ajsec.F,v 1.1.1.1 2004/05/19 12:53:08 lmdzadmin Exp $ |
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! |
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SUBROUTINE ajsec(paprs, pplay, t,q, d_t,d_q) |
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use dimens_m |
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use dimphy |
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use SUPHEC_M |
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IMPLICIT none |
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c====================================================================== |
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c Auteur(s): Z.X. Li (LMD/CNRS) date: 19930818 |
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c Objet: ajustement sec (adaptation du GCM du LMD) |
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c====================================================================== |
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c Arguments: |
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c t-------input-R- Temperature |
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c |
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c d_t-----output-R-Incrementation de la temperature |
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c====================================================================== |
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REAL, intent(in):: paprs(klon,klev+1) |
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real, intent(in):: pplay(klon,klev) |
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REAL t(klon,klev), q(klon,klev) |
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REAL d_t(klon,klev), d_q(klon,klev) |
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c |
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INTEGER limbas, limhau ! les couches a ajuster |
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ccc PARAMETER (limbas=klev-3, limhau=klev) |
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PARAMETER (limbas=1, limhau=klev) |
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c |
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LOGICAL mixq |
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ccc PARAMETER (mixq=.TRUE.) |
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PARAMETER (mixq=.FALSE.) |
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c |
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REAL zh(klon,klev) |
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REAL zq(klon,klev) |
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REAL zpk(klon,klev) |
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REAL zpkdp(klon,klev) |
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REAL hm, sm, qm |
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LOGICAL modif(klon), down |
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INTEGER i, k, k1, k2 |
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c |
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c Initialisation: |
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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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d_t(i,k) = 0.0 |
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d_q(i,k) = 0.0 |
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ENDDO |
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ENDDO |
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c------------------------------------- detection des profils a modifier |
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DO k = limbas, limhau |
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DO i = 1, klon |
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zpk(i,k) = pplay(i,k)**RKAPPA |
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zh(i,k) = RCPD * t(i,k)/ zpk(i,k) |
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zq(i,k) = q(i,k) |
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ENDDO |
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ENDDO |
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c |
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DO k = limbas, limhau |
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DO i = 1, klon |
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zpkdp(i,k) = zpk(i,k) * (paprs(i,k)-paprs(i,k+1)) |
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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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modif(i) = .FALSE. |
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ENDDO |
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DO k = limbas+1, limhau |
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DO i = 1, klon |
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IF (.NOT.modif(i)) THEN |
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IF ( zh(i,k).LT.zh(i,k-1) ) modif(i) = .TRUE. |
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ENDIF |
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ENDDO |
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ENDDO |
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c------------------------------------- correction des profils instables |
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DO 1080 i = 1, klon |
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IF (modif(i)) THEN |
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k2 = limbas |
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8000 CONTINUE |
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k2 = k2 + 1 |
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IF (k2 .GT. limhau) goto 8001 |
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IF (zh(i,k2) .LT. zh(i,k2-1)) THEN |
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k1 = k2 - 1 |
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k = k1 |
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sm = zpkdp(i,k2) |
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hm = zh(i,k2) |
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qm = zq(i,k2) |
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8020 CONTINUE |
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sm = sm +zpkdp(i,k) |
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hm = hm +zpkdp(i,k) * (zh(i,k)-hm) / sm |
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qm = qm +zpkdp(i,k) * (zq(i,k)-qm) / sm |
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down = .FALSE. |
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IF (k1 .ne. limbas) THEN |
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IF (hm .LT. zh(i,k1-1)) down = .TRUE. |
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ENDIF |
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IF (down) THEN |
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k1 = k1 - 1 |
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k = k1 |
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ELSE |
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IF ((k2 .EQ. limhau)) GOTO 8021 |
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IF ((zh(i,k2+1).GE.hm)) GOTO 8021 |
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k2 = k2 + 1 |
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k = k2 |
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ENDIF |
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GOTO 8020 |
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8021 CONTINUE |
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c------------ nouveau profil : constant (valeur moyenne) |
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DO k = k1, k2 |
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zh(i,k) = hm |
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zq(i,k) = qm |
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ENDDO |
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k2 = k2 + 1 |
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ENDIF |
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GOTO 8000 |
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8001 CONTINUE |
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ENDIF |
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1080 CONTINUE |
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c |
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DO k = limbas, limhau |
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DO i = 1, klon |
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d_t(i,k) = zh(i,k)*zpk(i,k)/RCPD - t(i,k) |
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d_q(i,k) = zq(i,k) - q(i,k) |
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ENDDO |
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ENDDO |
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c |
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IF (limbas.GT.1) THEN |
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DO k = 1, limbas-1 |
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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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ENDDO |
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ENDDO |
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ENDIF |
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c |
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IF (limhau.LT.klev) THEN |
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DO k = limhau+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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ENDDO |
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ENDDO |
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ENDIF |
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c |
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IF (.NOT.mixq) THEN |
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DO k = 1, klev |
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DO i = 1, klon |
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d_q(i,k) = 0.0 |
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ENDDO |
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ENDDO |
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ENDIF |
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c |
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RETURN |
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END |
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