/[lmdze]/trunk/phylmd/Interface_surf/clvent.f90
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trunk/phylmd/clvent.f revision 254 by guez, Mon Feb 5 10:39:38 2018 UTC trunk/phylmd/Interface_surf/clvent.f90 revision 328 by guez, Thu Jun 13 14:40:06 2019 UTC
# Line 4  module clvent_m Line 4  module clvent_m
4    
5  contains  contains
6    
7    SUBROUTINE clvent(dtime, u1lay, v1lay, coef, cdrag, t, ven, paprs, pplay, &    SUBROUTINE clvent(u1lay, v1lay, coef, cdrag, t, ven, paprs, pplay, delp, &
8         delp, d_ven, flux_v)         d_ven, flux_v)
9    
10      ! Author: Z. X. Li (LMD/CNRS)      ! Author: Z. X. Li (LMD/CNRS)
11      ! Date: 1993/08/18      ! Date: 1993/08/18
12      ! Objet : diffusion verticale de la vitesse      ! Objet : diffusion verticale de la vitesse
13    
14      USE dimphy, ONLY: klev      ! Library:
15      use nr_util, only: assert      use nr_util, only: assert
     USE suphec_m, ONLY: rd, rg  
16    
17      REAL, intent(in):: dtime ! intervalle de temps (en s)      use comconst, only: dtphys
18        USE dimphy, ONLY: klev
19        USE suphec_m, ONLY: rd, rg
20    
21      REAL, intent(in):: u1lay(:), v1lay(:) ! (knon)      REAL, intent(in):: u1lay(:), v1lay(:) ! (knon)
22      ! vent de la premiere couche (m / s)      ! vent de la premiere couche (m / s)
# Line 24  contains Line 25  contains
25      ! Coefficient d'echange (m**2 / s) multiplié par le cisaillement du      ! Coefficient d'echange (m**2 / s) multiplié par le cisaillement du
26      ! vent (dV / dz)      ! vent (dV / dz)
27    
28      REAL, intent(in):: cdrag(:) ! (knon) sans unité      REAL, intent(in):: cdrag(:) ! (knon) sans dimension
29      REAL, intent(in):: t(:, :) ! (knon, klev) ! temperature (K)      REAL, intent(in):: t(:, :) ! (knon, klev) ! temperature (K)
30      REAL, intent(in):: ven(:, :) ! (knon, klev) vitesse horizontale (m / s)      REAL, intent(in):: ven(:, :) ! (knon, klev) vitesse horizontale (m / s)
31      REAL, intent(in):: paprs(:, :) ! (knon, klev + 1) pression a      REAL, intent(in):: paprs(:, :) ! (knon, klev + 1) pression a
# Line 32  contains Line 33  contains
33      real, intent(in):: pplay(:, :) ! (knon, klev) pression au milieu      real, intent(in):: pplay(:, :) ! (knon, klev) pression au milieu
34      ! de couche (Pa)      ! de couche (Pa)
35      real, intent(in):: delp(:, :) ! (knon, klev) epaisseur de couche (Pa)      real, intent(in):: delp(:, :) ! (knon, klev) epaisseur de couche (Pa)
36      REAL, intent(out):: d_ven(:, :) ! (knon, klev) ! le changement de "ven"  
37        REAL, intent(out):: d_ven(:, :) ! (knon, klev)
38        ! le changement de "ven", en m s-1
39    
40      REAL, intent(out):: flux_v(:) ! (knon)      REAL, intent(out):: flux_v(:) ! (knon)
41      ! (diagnostic) flux du vent à la surface, en (kg m / s) / (m**2 s)      ! (diagnostic) stress du vent à la surface, en Pa
42      ! flux_v est le flux de moment angulaire (positif vers bas)      ! flux_v est le flux de quantité de mouvement (positif vers bas)
43    
44      ! Local:      ! Local:
45      INTEGER k      INTEGER k
46      REAL zx_cv(size(u1lay), 2:klev) ! (knon, 2:klev)      REAL zx_cv(size(u1lay), 2:klev) ! (knon, 2:klev)
47      REAL zx_dv(size(u1lay), 2:klev) ! (knon, 2:klev)      REAL zx_dv(size(u1lay), 2:klev) ! (knon, 2:klev)
48      REAL zx_buf(size(u1lay)) ! (knon)      REAL zx_buf(size(u1lay)) ! (knon)
49      REAL zx_coef(size(u1lay), klev) ! (knon, klev)      REAL zx_coef(size(u1lay), klev) ! (knon, klev) in Pa
50      REAL local_ven(size(u1lay), klev) ! (knon, klev)      REAL local_ven(size(u1lay), klev) ! (knon, klev) in m s-1
51    
52      !------------------------------------------------------------------      !------------------------------------------------------------------
53    
# Line 53  contains Line 56  contains
56           size(d_ven, 1), size(flux_v)], "clvent knon")           size(d_ven, 1), size(flux_v)], "clvent knon")
57    
58      zx_coef(:, 1) = cdrag * (1. + SQRT(u1lay**2 + v1lay**2)) * pplay(:, 1) &      zx_coef(:, 1) = cdrag * (1. + SQRT(u1lay**2 + v1lay**2)) * pplay(:, 1) &
59           / (RD * t(:, 1)) * dtime * RG           / (RD * t(:, 1)) * dtphys * RG
60    
61      DO k = 2, klev      forall (k = 2:klev) zx_coef(:, k) = coef(:, k) * RG / (pplay(:, k - 1) &
62         zx_coef(:, k) = coef(:, k) * RG / (pplay(:, k - 1) - pplay(:, k)) &           - pplay(:, k)) * (paprs(:, k) * 2 / (t(:, k) + t(:, k - 1)) / RD)**2 &
63              * (paprs(:, k) * 2 / (t(:, k) + t(:, k - 1)) / RD)**2 * dtime * RG           * dtphys * RG
     ENDDO  
64    
65      zx_buf = delp(:, 1) + zx_coef(:, 1) + zx_coef(:, 2)      zx_buf = delp(:, 1) + zx_coef(:, 1) + zx_coef(:, 2)
66      zx_cv(:, 2) = ven(:, 1) * delp(:, 1) / zx_buf      zx_cv(:, 2) = ven(:, 1) * delp(:, 1) / zx_buf
# Line 81  contains Line 83  contains
83         local_ven(:, k) = zx_cv(:, k + 1) + zx_dv(:, k + 1) * local_ven(:, k + 1)         local_ven(:, k) = zx_cv(:, k + 1) + zx_dv(:, k + 1) * local_ven(:, k + 1)
84      ENDDO      ENDDO
85    
86      flux_v = zx_coef(:, 1) / (RG * dtime) * local_ven(:, 1)      flux_v = zx_coef(:, 1) / (RG * dtphys) * local_ven(:, 1)
87      d_ven = local_ven - ven      d_ven = local_ven - ven
88    
89    END SUBROUTINE clvent    END SUBROUTINE clvent
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