| 1 |
guez |
3 |
! |
| 2 |
|
|
! $Header: /home/cvsroot/LMDZ4/libf/phylmd/cltrac.F,v 1.1.1.1 2004/05/19 12:53:07 lmdzadmin Exp $ |
| 3 |
|
|
! |
| 4 |
|
|
SUBROUTINE cltrac(dtime,coef,t,tr,flux,paprs,pplay,delp, |
| 5 |
|
|
s d_tr) |
| 6 |
|
|
use dimens_m |
| 7 |
|
|
use dimphy |
| 8 |
guez |
38 |
use SUPHEC_M |
| 9 |
guez |
3 |
IMPLICIT none |
| 10 |
|
|
c====================================================================== |
| 11 |
|
|
c Auteur(s): O. Boucher (LOA/LMD) date: 19961127 |
| 12 |
|
|
c inspire de clvent |
| 13 |
|
|
c Objet: diffusion verticale de traceurs avec flux fixe a la surface |
| 14 |
|
|
c ou/et flux du type c-drag |
| 15 |
|
|
c====================================================================== |
| 16 |
|
|
c Arguments: |
| 17 |
|
|
c dtime----input-R- intervalle du temps (en second) |
| 18 |
|
|
c coef-----input-R- le coefficient d'echange (m**2/s) l>1 |
| 19 |
|
|
c tr-------input-R- la q. de traceurs |
| 20 |
|
|
c flux-----input-R- le flux de traceurs a la surface |
| 21 |
|
|
c paprs----input-R- pression a inter-couche (Pa) |
| 22 |
|
|
c pplay----input-R- pression au milieu de couche (Pa) |
| 23 |
|
|
c delp-----input-R- epaisseur de couche (Pa) |
| 24 |
|
|
c cdrag----input-R- cdrag pour le flux de surface (non active) |
| 25 |
|
|
c tr0------input-R- traceurs a la surface ou dans l'ocean (non active) |
| 26 |
|
|
c d_tr-----output-R- le changement de tr |
| 27 |
|
|
c flux_tr--output-R- flux de tr |
| 28 |
|
|
c====================================================================== |
| 29 |
guez |
7 |
REAL, intent(in):: dtime |
| 30 |
guez |
3 |
REAL coef(klon,klev) |
| 31 |
|
|
REAL, intent(in):: t(klon,klev) ! temperature (K) |
| 32 |
|
|
real tr(klon,klev) |
| 33 |
|
|
REAL, intent(in):: paprs(klon,klev+1) |
| 34 |
guez |
10 |
real, intent(in):: pplay(klon,klev) |
| 35 |
|
|
real delp(klon,klev) |
| 36 |
guez |
3 |
REAL d_tr(klon,klev) |
| 37 |
|
|
REAL flux(klon), cdrag(klon), tr0(klon) |
| 38 |
|
|
c REAL flux_tr(klon,klev) |
| 39 |
|
|
c====================================================================== |
| 40 |
|
|
c====================================================================== |
| 41 |
|
|
INTEGER i, k |
| 42 |
|
|
REAL zx_ctr(klon,2:klev) |
| 43 |
|
|
REAL zx_dtr(klon,2:klev) |
| 44 |
|
|
REAL zx_buf(klon) |
| 45 |
|
|
REAL zx_coef(klon,klev) |
| 46 |
|
|
REAL local_tr(klon,klev) |
| 47 |
|
|
REAL zx_alf1(klon), zx_alf2(klon), zx_flux(klon) |
| 48 |
|
|
c====================================================================== |
| 49 |
|
|
DO k = 1, klev |
| 50 |
|
|
DO i = 1, klon |
| 51 |
|
|
local_tr(i,k) = tr(i,k) |
| 52 |
|
|
ENDDO |
| 53 |
|
|
ENDDO |
| 54 |
|
|
c |
| 55 |
|
|
|
| 56 |
|
|
c====================================================================== |
| 57 |
|
|
DO i = 1, klon |
| 58 |
|
|
zx_alf1(i) = (paprs(i,1)-pplay(i,2))/(pplay(i,1)-pplay(i,2)) |
| 59 |
|
|
zx_alf2(i) = 1.0 - zx_alf1(i) |
| 60 |
|
|
zx_flux(i) = -flux(i)*dtime*RG |
| 61 |
|
|
c--pour le moment le flux est prescrit |
| 62 |
|
|
c--cdrag et zx_coef(1) vaut 0 |
| 63 |
|
|
cdrag(i) = 0.0 |
| 64 |
|
|
tr0(i) = 0.0 |
| 65 |
|
|
zx_coef(i,1) = cdrag(i)*dtime*RG |
| 66 |
|
|
ENDDO |
| 67 |
|
|
c====================================================================== |
| 68 |
|
|
DO k = 2, klev |
| 69 |
|
|
DO i = 1, klon |
| 70 |
|
|
zx_coef(i,k) = coef(i,k)*RG/(pplay(i,k-1)-pplay(i,k)) |
| 71 |
|
|
. *(paprs(i,k)*2/(t(i,k)+t(i,k-1))/RD)**2 |
| 72 |
|
|
zx_coef(i,k) = zx_coef(i,k)*dtime*RG |
| 73 |
|
|
ENDDO |
| 74 |
|
|
ENDDO |
| 75 |
|
|
c====================================================================== |
| 76 |
|
|
DO i = 1, klon |
| 77 |
|
|
zx_buf(i) = delp(i,1) + zx_coef(i,1)*zx_alf1(i) + zx_coef(i,2) |
| 78 |
|
|
zx_ctr(i,2) = (local_tr(i,1)*delp(i,1)+ |
| 79 |
|
|
. zx_coef(i,1)*tr0(i)-zx_flux(i))/zx_buf(i) |
| 80 |
|
|
zx_dtr(i,2) = (zx_coef(i,2)-zx_alf2(i)*zx_coef(i,1)) / |
| 81 |
|
|
. zx_buf(i) |
| 82 |
|
|
ENDDO |
| 83 |
|
|
c |
| 84 |
|
|
DO k = 3, klev |
| 85 |
|
|
DO i = 1, klon |
| 86 |
|
|
zx_buf(i) = delp(i,k-1) + zx_coef(i,k) |
| 87 |
|
|
. + zx_coef(i,k-1)*(1.-zx_dtr(i,k-1)) |
| 88 |
|
|
zx_ctr(i,k) = (local_tr(i,k-1)*delp(i,k-1) |
| 89 |
|
|
. +zx_coef(i,k-1)*zx_ctr(i,k-1) )/zx_buf(i) |
| 90 |
|
|
zx_dtr(i,k) = zx_coef(i,k)/zx_buf(i) |
| 91 |
|
|
ENDDO |
| 92 |
|
|
ENDDO |
| 93 |
|
|
DO i = 1, klon |
| 94 |
|
|
local_tr(i,klev) = ( local_tr(i,klev)*delp(i,klev) |
| 95 |
|
|
. +zx_coef(i,klev)*zx_ctr(i,klev) ) |
| 96 |
|
|
. / ( delp(i,klev) + zx_coef(i,klev) |
| 97 |
|
|
. -zx_coef(i,klev)*zx_dtr(i,klev) ) |
| 98 |
|
|
ENDDO |
| 99 |
|
|
DO k = klev-1, 1, -1 |
| 100 |
|
|
DO i = 1, klon |
| 101 |
|
|
local_tr(i,k) = zx_ctr(i,k+1) + zx_dtr(i,k+1)*local_tr(i,k+1) |
| 102 |
|
|
ENDDO |
| 103 |
|
|
ENDDO |
| 104 |
|
|
c====================================================================== |
| 105 |
|
|
c== flux_tr est le flux de traceur (positif vers bas) |
| 106 |
|
|
c DO i = 1, klon |
| 107 |
|
|
c flux_tr(i,1) = zx_coef(i,1)/(RG*dtime) |
| 108 |
|
|
c ENDDO |
| 109 |
|
|
c DO k = 2, klev |
| 110 |
|
|
c DO i = 1, klon |
| 111 |
|
|
c flux_tr(i,k) = zx_coef(i,k)/(RG*dtime) |
| 112 |
|
|
c . * (local_tr(i,k)-local_tr(i,k-1)) |
| 113 |
|
|
c ENDDO |
| 114 |
|
|
c ENDDO |
| 115 |
|
|
c====================================================================== |
| 116 |
|
|
DO k = 1, klev |
| 117 |
|
|
DO i = 1, klon |
| 118 |
|
|
d_tr(i,k) = local_tr(i,k) - tr(i,k) |
| 119 |
|
|
ENDDO |
| 120 |
|
|
ENDDO |
| 121 |
|
|
c |
| 122 |
|
|
RETURN |
| 123 |
|
|
END |
Parent Directory
| 
Revision Log