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module ajsec_m |
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IMPLICIT none |
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contains |
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SUBROUTINE ajsec(paprs, pplay, t, q, d_t, d_q) |
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! From LMDZ4/libf/phylmd/ajsec.F, version 1.1.1.1 2004/05/19 12:53:08 |
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! Author: Z. X. Li (LMD/CNRS) date: 1993/08/18 |
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! Objet : ajustement sec |
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USE dimphy, ONLY : klev, klon |
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USE suphec_m, ONLY : rcpd, rkappa |
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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, intent(in):: t(klon, klev) ! temperature |
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real, intent(in):: q(klon, klev) |
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REAL, intent(out):: d_t(klon, klev) ! incrémentation de la température |
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REAL, intent(out):: d_q(klon, klev) |
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! Local: |
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INTEGER, PARAMETER:: limbas=1, limhau=klev ! les couches à ajuster |
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LOGICAL, PARAMETER:: mixq = .FALSE. |
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REAL, dimension(klon, limbas: limhau):: zh, zq, zpk, zpkdp |
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REAL hm, sm, qm |
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LOGICAL down |
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INTEGER i, k, k1, k2 |
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!-------------------------------------------------------------------- |
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zpk = pplay(:, limbas: limhau)**RKAPPA |
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zh = RCPD * t(:, limbas: limhau) / zpk |
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zq = q(:, limbas: limhau) |
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forall (k = limbas: limhau) & |
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zpkdp(:, k) = zpk(:, k) * (paprs(:, k) - paprs(:, k+1)) |
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! Correction des profils instables : |
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DO i = 1, klon |
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IF (any((/(zh(i, k) < zh(i, k - 1), k = limbas + 1, limhau)/))) THEN |
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! Profil instable, à modifier |
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k2 = limbas |
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do while (k2 <= limhau - 1) |
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k2 = k2 + 1 |
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IF (zh(i, k2) < 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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do |
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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 /= limbas) THEN |
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IF (hm < 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 == limhau) exit |
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IF (zh(i, k2 + 1) >= hm) exit |
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k2 = k2 + 1 |
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k = k2 |
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ENDIF |
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end do |
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! 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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end do |
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ENDIF |
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end DO |
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d_t(:, : limbas - 1) = 0. |
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d_t(:, limbas: limhau) = zh * zpk / RCPD - t(:, limbas: limhau) |
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d_t(:, limhau + 1:) = 0. |
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if (mixq) then |
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d_q(:, : limbas - 1) = 0. |
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d_q(:, limbas: limhau) = zq - q(:, limbas: limhau) |
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d_q(:, limhau + 1:) = 0. |
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else |
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d_q = 0. |
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end if |
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END SUBROUTINE ajsec |
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end module ajsec_m |
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