| 1 |
guez |
104 |
module stdlevvar_m |
| 2 |
|
|
|
| 3 |
|
|
IMPLICIT NONE |
| 4 |
|
|
|
| 5 |
|
|
contains |
| 6 |
|
|
|
| 7 |
|
|
SUBROUTINE stdlevvar(klon, knon, nsrf, zxli, u1, v1, t1, q1, z1, ts1, & |
| 8 |
|
|
qsurf, rugos, psol, pat1, t_2m, q_2m, t_10m, q_10m, u_10m, ustar) |
| 9 |
|
|
|
| 10 |
|
|
! From LMDZ4/libf/phylmd/stdlevvar.F90, version 1.3 2005/05/25 13:10:09 |
| 11 |
|
|
|
| 12 |
guez |
108 |
use coefcdrag_m, only: coefcdrag |
| 13 |
guez |
104 |
USE suphec_m, ONLY: rg, rkappa |
| 14 |
|
|
|
| 15 |
|
|
! Objet : calcul de la température et de l'humidité relative à 2 m |
| 16 |
|
|
! et du module du vent à 10 m à partir des relations de |
| 17 |
|
|
! Dyer-Businger et des équations de Louis. |
| 18 |
|
|
|
| 19 |
|
|
! Reference: Hess, Colman and McAvaney (1995) |
| 20 |
|
|
|
| 21 |
|
|
! Author: I. Musat, 01.07.2002 |
| 22 |
|
|
|
| 23 |
|
|
INTEGER, intent(in):: klon |
| 24 |
|
|
! dimension de la grille physique (= nb_pts_latitude X nb_pts_longitude) |
| 25 |
|
|
|
| 26 |
guez |
106 |
INTEGER, intent(in):: knon |
| 27 |
guez |
104 |
! knon----input-I- nombre de points pour un type de surface |
| 28 |
guez |
106 |
INTEGER, intent(in):: nsrf |
| 29 |
guez |
104 |
! nsrf----input-I- indice pour le type de surface; voir indicesol.inc |
| 30 |
|
|
LOGICAL, intent(in):: zxli |
| 31 |
|
|
! zxli----input-L- TRUE si calcul des cdrags selon Laurent Li |
| 32 |
guez |
106 |
REAL, dimension(klon), intent(in):: u1 |
| 33 |
guez |
104 |
! u1------input-R- vent zonal au 1er niveau du modele |
| 34 |
guez |
106 |
REAL, dimension(klon), intent(in):: v1 |
| 35 |
guez |
104 |
! v1------input-R- vent meridien au 1er niveau du modele |
| 36 |
guez |
106 |
REAL, dimension(klon), intent(in):: t1 |
| 37 |
guez |
104 |
! t1------input-R- temperature de l'air au 1er niveau du modele |
| 38 |
guez |
106 |
REAL, dimension(klon), intent(in):: q1 |
| 39 |
guez |
104 |
! q1------input-R- humidite relative au 1er niveau du modele |
| 40 |
guez |
106 |
REAL, dimension(klon), intent(in):: z1 |
| 41 |
guez |
104 |
! z1------input-R- geopotentiel au 1er niveau du modele |
| 42 |
guez |
106 |
REAL, dimension(klon), intent(in):: ts1 |
| 43 |
guez |
104 |
! ts1-----input-R- temperature de l'air a la surface |
| 44 |
guez |
106 |
REAL, dimension(klon), intent(in):: qsurf |
| 45 |
guez |
104 |
! qsurf---input-R- humidite relative a la surface |
| 46 |
guez |
106 |
REAL, dimension(klon), intent(in):: rugos |
| 47 |
guez |
104 |
! rugos---input-R- rugosite |
| 48 |
guez |
106 |
REAL, dimension(klon), intent(in):: psol |
| 49 |
guez |
104 |
! psol----input-R- pression au sol |
| 50 |
guez |
106 |
REAL, dimension(klon), intent(in):: pat1 |
| 51 |
guez |
104 |
! pat1----input-R- pression au 1er niveau du modele |
| 52 |
|
|
|
| 53 |
guez |
106 |
REAL, dimension(klon), intent(out):: t_2m |
| 54 |
guez |
104 |
! t_2m---output-R- temperature de l'air a 2m |
| 55 |
guez |
106 |
REAL, dimension(klon), intent(out):: q_2m |
| 56 |
guez |
104 |
! q_2m---output-R- humidite relative a 2m |
| 57 |
guez |
106 |
REAL, dimension(klon), intent(out):: t_10m |
| 58 |
guez |
104 |
! t_10m--output-R- temperature de l'air a 10m |
| 59 |
guez |
106 |
REAL, dimension(klon), intent(out):: q_10m |
| 60 |
guez |
104 |
! q_10m--output-R- humidite specifique a 10m |
| 61 |
|
|
REAL, dimension(klon), intent(out):: u_10m |
| 62 |
|
|
! u_10m--output-R- vitesse du vent a 10m |
| 63 |
|
|
REAL, intent(out):: ustar(klon) ! u* |
| 64 |
|
|
|
| 65 |
|
|
! Local: |
| 66 |
|
|
|
| 67 |
|
|
! RKAR : constante de von Karman |
| 68 |
|
|
REAL, PARAMETER:: RKAR=0.40 |
| 69 |
|
|
! niter : nombre iterations calcul "corrector" |
| 70 |
|
|
INTEGER, parameter:: niter=2, ncon=niter-1 |
| 71 |
|
|
|
| 72 |
|
|
! Variables locales |
| 73 |
|
|
INTEGER i, n |
| 74 |
|
|
REAL zref |
| 75 |
|
|
REAL, dimension(klon):: speed |
| 76 |
|
|
! tpot : temperature potentielle |
| 77 |
|
|
REAL, dimension(klon):: tpot |
| 78 |
|
|
REAL, dimension(klon):: zri1, cdran |
| 79 |
|
|
REAL cdram(klon), cdrah(klon) |
| 80 |
|
|
! ri1 : nb. de Richardson entre la surface --> la 1ere couche |
| 81 |
|
|
REAL, dimension(klon):: ri1 |
| 82 |
|
|
REAL, dimension(klon):: testar, qstar |
| 83 |
|
|
REAL, dimension(klon):: zdte, zdq |
| 84 |
|
|
! lmon : longueur de Monin-Obukhov selon Hess, Colman and McAvaney |
| 85 |
|
|
DOUBLE PRECISION, dimension(klon):: lmon |
| 86 |
|
|
DOUBLE PRECISION, parameter:: eps=1.0D-20 |
| 87 |
|
|
REAL, dimension(klon):: delu, delte, delq |
| 88 |
|
|
REAL, dimension(klon):: u_zref, te_zref, q_zref |
| 89 |
|
|
REAL, dimension(klon):: temp, pref |
| 90 |
|
|
LOGICAL okri |
| 91 |
|
|
REAL, dimension(klon):: u_zref_p, temp_p, q_zref_p |
| 92 |
|
|
!convertgence |
| 93 |
|
|
REAL, dimension(klon):: te_zref_con, q_zref_con |
| 94 |
|
|
REAL, dimension(klon):: u_zref_c, temp_c, q_zref_c |
| 95 |
|
|
REAL, dimension(klon):: ok_pred, ok_corr |
| 96 |
|
|
|
| 97 |
|
|
!------------------------------------------------------------------------- |
| 98 |
|
|
|
| 99 |
|
|
DO i=1, knon |
| 100 |
guez |
3 |
speed(i)=SQRT(u1(i)**2+v1(i)**2) |
| 101 |
|
|
ri1(i) = 0.0 |
| 102 |
guez |
104 |
ENDDO |
| 103 |
|
|
|
| 104 |
|
|
okri=.FALSE. |
| 105 |
|
|
CALL coefcdrag(klon, knon, nsrf, zxli, speed, t1, q1, z1, psol, ts1, & |
| 106 |
|
|
qsurf, rugos, okri, ri1, cdram, cdrah, cdran, zri1, pref) |
| 107 |
|
|
|
| 108 |
|
|
! Star variables |
| 109 |
|
|
|
| 110 |
|
|
DO i = 1, knon |
| 111 |
|
|
ri1(i) = zri1(i) |
| 112 |
|
|
tpot(i) = t1(i)* (psol(i)/pat1(i))**RKAPPA |
| 113 |
|
|
ustar(i) = sqrt(cdram(i) * speed(i) * speed(i)) |
| 114 |
|
|
zdte(i) = tpot(i) - ts1(i) |
| 115 |
|
|
zdq(i) = max(q1(i), 0.0) - max(qsurf(i), 0.0) |
| 116 |
|
|
|
| 117 |
|
|
zdte(i) = sign(max(abs(zdte(i)), 1.e-10), zdte(i)) |
| 118 |
|
|
|
| 119 |
|
|
testar(i) = (cdrah(i) * zdte(i) * speed(i))/ustar(i) |
| 120 |
|
|
qstar(i) = (cdrah(i) * zdq(i) * speed(i))/ustar(i) |
| 121 |
|
|
lmon(i) = (ustar(i) * ustar(i) * tpot(i))/ & |
| 122 |
|
|
(RKAR * RG * testar(i)) |
| 123 |
|
|
ENDDO |
| 124 |
|
|
|
| 125 |
|
|
! First aproximation of variables at zref |
| 126 |
|
|
zref = 2.0 |
| 127 |
|
|
CALL screenp(klon, knon, nsrf, speed, tpot, q1, & |
| 128 |
|
|
ts1, qsurf, rugos, lmon, & |
| 129 |
|
|
ustar, testar, qstar, zref, & |
| 130 |
|
|
delu, delte, delq) |
| 131 |
|
|
|
| 132 |
|
|
DO i = 1, knon |
| 133 |
|
|
u_zref(i) = delu(i) |
| 134 |
|
|
q_zref(i) = max(qsurf(i), 0.0) + delq(i) |
| 135 |
|
|
te_zref(i) = ts1(i) + delte(i) |
| 136 |
|
|
temp(i) = te_zref(i) * (psol(i)/pat1(i))**(-RKAPPA) |
| 137 |
|
|
q_zref_p(i) = q_zref(i) |
| 138 |
|
|
temp_p(i) = temp(i) |
| 139 |
|
|
ENDDO |
| 140 |
|
|
|
| 141 |
|
|
! Iteration of the variables at the reference level zref : |
| 142 |
|
|
! corrector calculation ; see Hess & McAvaney, 1995 |
| 143 |
|
|
|
| 144 |
|
|
DO n = 1, niter |
| 145 |
|
|
okri=.TRUE. |
| 146 |
|
|
CALL screenc(klon, knon, nsrf, zxli, & |
| 147 |
|
|
u_zref, temp, q_zref, zref, & |
| 148 |
|
|
ts1, qsurf, rugos, psol, & |
| 149 |
|
|
ustar, testar, qstar, okri, ri1, & |
| 150 |
|
|
pref, delu, delte, delq) |
| 151 |
|
|
|
| 152 |
|
|
DO i = 1, knon |
| 153 |
guez |
3 |
u_zref(i) = delu(i) |
| 154 |
guez |
104 |
q_zref(i) = delq(i) + max(qsurf(i), 0.0) |
| 155 |
guez |
3 |
te_zref(i) = delte(i) + ts1(i) |
| 156 |
guez |
104 |
|
| 157 |
|
|
! return to normal temperature |
| 158 |
|
|
|
| 159 |
guez |
3 |
temp(i) = te_zref(i) * (psol(i)/pref(i))**(-RKAPPA) |
| 160 |
guez |
104 |
|
| 161 |
|
|
IF(n == ncon) THEN |
| 162 |
|
|
te_zref_con(i) = te_zref(i) |
| 163 |
|
|
q_zref_con(i) = q_zref(i) |
| 164 |
|
|
ENDIF |
| 165 |
|
|
ENDDO |
| 166 |
|
|
ENDDO |
| 167 |
|
|
|
| 168 |
|
|
! verifier le critere de convergence : 0.25% pour te_zref et 5% pour qe_zref |
| 169 |
|
|
|
| 170 |
|
|
DO i = 1, knon |
| 171 |
|
|
q_zref_c(i) = q_zref(i) |
| 172 |
|
|
temp_c(i) = temp(i) |
| 173 |
|
|
|
| 174 |
|
|
ok_pred(i)=0. |
| 175 |
|
|
ok_corr(i)=1. |
| 176 |
|
|
|
| 177 |
|
|
t_2m(i) = temp_p(i) * ok_pred(i) + temp_c(i) * ok_corr(i) |
| 178 |
|
|
q_2m(i) = q_zref_p(i) * ok_pred(i) + q_zref_c(i) * ok_corr(i) |
| 179 |
|
|
ENDDO |
| 180 |
|
|
|
| 181 |
|
|
! First aproximation of variables at zref |
| 182 |
|
|
|
| 183 |
|
|
zref = 10.0 |
| 184 |
|
|
CALL screenp(klon, knon, nsrf, speed, tpot, q1, & |
| 185 |
|
|
ts1, qsurf, rugos, lmon, & |
| 186 |
|
|
ustar, testar, qstar, zref, & |
| 187 |
|
|
delu, delte, delq) |
| 188 |
|
|
|
| 189 |
|
|
DO i = 1, knon |
| 190 |
|
|
u_zref(i) = delu(i) |
| 191 |
|
|
q_zref(i) = max(qsurf(i), 0.0) + delq(i) |
| 192 |
|
|
te_zref(i) = ts1(i) + delte(i) |
| 193 |
|
|
temp(i) = te_zref(i) * (psol(i)/pat1(i))**(-RKAPPA) |
| 194 |
|
|
u_zref_p(i) = u_zref(i) |
| 195 |
|
|
ENDDO |
| 196 |
|
|
|
| 197 |
|
|
! Iteration of the variables at the reference level zref: |
| 198 |
|
|
! corrector ; see Hess & McAvaney, 1995 |
| 199 |
|
|
|
| 200 |
|
|
DO n = 1, niter |
| 201 |
|
|
okri=.TRUE. |
| 202 |
|
|
CALL screenc(klon, knon, nsrf, zxli, & |
| 203 |
|
|
u_zref, temp, q_zref, zref, & |
| 204 |
|
|
ts1, qsurf, rugos, psol, & |
| 205 |
|
|
ustar, testar, qstar, okri, ri1, & |
| 206 |
|
|
pref, delu, delte, delq) |
| 207 |
|
|
|
| 208 |
|
|
DO i = 1, knon |
| 209 |
guez |
3 |
u_zref(i) = delu(i) |
| 210 |
guez |
104 |
q_zref(i) = delq(i) + max(qsurf(i), 0.0) |
| 211 |
guez |
3 |
te_zref(i) = delte(i) + ts1(i) |
| 212 |
|
|
temp(i) = te_zref(i) * (psol(i)/pref(i))**(-RKAPPA) |
| 213 |
guez |
104 |
ENDDO |
| 214 |
|
|
ENDDO |
| 215 |
|
|
|
| 216 |
|
|
DO i = 1, knon |
| 217 |
|
|
u_zref_c(i) = u_zref(i) |
| 218 |
|
|
|
| 219 |
|
|
u_10m(i) = u_zref_p(i) * ok_pred(i) + u_zref_c(i) * ok_corr(i) |
| 220 |
|
|
|
| 221 |
|
|
q_zref_c(i) = q_zref(i) |
| 222 |
|
|
temp_c(i) = temp(i) |
| 223 |
|
|
t_10m(i) = temp_p(i) * ok_pred(i) + temp_c(i) * ok_corr(i) |
| 224 |
|
|
q_10m(i) = q_zref_p(i) * ok_pred(i) + q_zref_c(i) * ok_corr(i) |
| 225 |
|
|
ENDDO |
| 226 |
|
|
|
| 227 |
|
|
END subroutine stdlevvar |
| 228 |
|
|
|
| 229 |
|
|
end module stdlevvar_m |
Parent Directory
| 
Revision Log