| 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | SUBROUTINE stdlevvar(klon, knon, nsrf, zxli, & |
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| 5 | u1, v1, t1, q1, z1, & |
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| 6 | ts1, qsurf, z0m, z0h, psol, pat1, & |
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| 7 | t_2m, q_2m, t_10m, q_10m, u_10m, ustar) |
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| 8 | IMPLICIT NONE |
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| 9 | !------------------------------------------------------------------------- |
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| 10 | ! |
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| 11 | ! Objet : calcul de la temperature et l'humidite relative a 2m et du |
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| 12 | ! module du vent a 10m a partir des relations de Dyer-Businger et |
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| 13 | ! des equations de Louis. |
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| 14 | ! |
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| 15 | ! Reference : Hess, Colman et McAvaney (1995) |
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| 16 | ! |
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| 17 | ! I. Musat, 01.07.2002 |
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| 18 | ! |
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| 19 | !AM On rajoute en sortie t et q a 10m pr le calcule d'hbtm2 dans clmain |
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| 20 | ! |
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| 21 | !------------------------------------------------------------------------- |
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| 22 | ! |
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| 23 | ! klon----input-I- dimension de la grille physique (= nb_pts_latitude X nb_pts_longitude) |
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| 24 | ! knon----input-I- nombre de points pour un type de surface |
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| 25 | ! nsrf----input-I- indice pour le type de surface; voir indice_sol_mod.F90 |
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| 26 | ! zxli----input-L- TRUE si calcul des cdrags selon Laurent Li |
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| 27 | ! u1------input-R- vent zonal au 1er niveau du modele |
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| 28 | ! v1------input-R- vent meridien au 1er niveau du modele |
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| 29 | ! t1------input-R- temperature de l'air au 1er niveau du modele |
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| 30 | ! q1------input-R- humidite relative au 1er niveau du modele |
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| 31 | ! z1------input-R- geopotentiel au 1er niveau du modele |
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| 32 | ! ts1-----input-R- temperature de l'air a la surface |
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| 33 | ! qsurf---input-R- humidite relative a la surface |
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| 34 | ! z0m, z0h---input-R- rugosite |
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| 35 | ! psol----input-R- pression au sol |
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| 36 | ! pat1----input-R- pression au 1er niveau du modele |
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| 37 | ! |
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| 38 | ! t_2m---output-R- temperature de l'air a 2m |
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| 39 | ! q_2m---output-R- humidite relative a 2m |
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| 40 | ! u_10m--output-R- vitesse du vent a 10m |
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| 41 | !AM |
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| 42 | ! t_10m--output-R- temperature de l'air a 10m |
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| 43 | ! q_10m--output-R- humidite specifique a 10m |
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| 44 | ! ustar--output-R- u* |
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| 45 | ! |
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| 46 | INTEGER, intent(in) :: klon, knon, nsrf |
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| 47 | LOGICAL, intent(in) :: zxli |
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| 48 | REAL, dimension(klon), intent(in) :: u1, v1, t1, q1, z1, ts1 |
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| 49 | REAL, dimension(klon), intent(in) :: qsurf, z0m, z0h |
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| 50 | REAL, dimension(klon), intent(in) :: psol, pat1 |
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| 51 | ! |
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| 52 | REAL, dimension(klon), intent(out) :: t_2m, q_2m, ustar |
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| 53 | REAL, dimension(klon), intent(out) :: u_10m, t_10m, q_10m |
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| 54 | !------------------------------------------------------------------------- |
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| 55 | include "flux_arp.h" |
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| 56 | include "YOMCST.h" |
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| 57 | !IM PLUS |
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| 58 | include "YOETHF.h" |
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| 59 | ! |
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| 60 | ! Quelques constantes et options: |
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| 61 | ! |
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| 62 | ! RKAR : constante de von Karman |
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| 63 | REAL, PARAMETER :: RKAR=0.40 |
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| 64 | ! niter : nombre iterations calcul "corrector" |
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| 65 | ! INTEGER, parameter :: niter=6, ncon=niter-1 |
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| 66 | INTEGER, parameter :: niter=2, ncon=niter-1 |
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| 67 | ! |
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| 68 | ! Variables locales |
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| 69 | INTEGER :: i, n |
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| 70 | REAL :: zref |
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| 71 | REAL, dimension(klon) :: speed |
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| 72 | ! tpot : temperature potentielle |
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| 73 | REAL, dimension(klon) :: tpot |
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| 74 | REAL, dimension(klon) :: zri1, cdran |
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| 75 | REAL, dimension(klon) :: cdram, cdrah |
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| 76 | ! ri1 : nb. de Richardson entre la surface --> la 1ere couche |
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| 77 | REAL, dimension(klon) :: ri1 |
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| 78 | REAL, dimension(klon) :: testar, qstar |
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| 79 | REAL, dimension(klon) :: zdte, zdq |
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| 80 | ! lmon : longueur de Monin-Obukhov selon Hess, Colman and McAvaney |
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| 81 | DOUBLE PRECISION, dimension(klon) :: lmon |
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| 82 | DOUBLE PRECISION, parameter :: eps=1.0D-20 |
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| 83 | REAL, dimension(klon) :: delu, delte, delq |
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| 84 | REAL, dimension(klon) :: u_zref, te_zref, q_zref |
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| 85 | REAL, dimension(klon) :: temp, pref |
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| 86 | LOGICAL :: okri |
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| 87 | REAL, dimension(klon) :: u_zref_p, te_zref_p, temp_p, q_zref_p |
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| 88 | !convertgence |
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| 89 | REAL, dimension(klon) :: te_zref_con, q_zref_con |
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| 90 | REAL, dimension(klon) :: u_zref_c, te_zref_c, temp_c, q_zref_c |
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| 91 | REAL, dimension(klon) :: ok_pred, ok_corr |
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| 92 | ! REAL, dimension(klon) :: conv_te, conv_q |
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| 93 | !------------------------------------------------------------------------- |
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| 94 | DO i=1, knon |
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| 95 | speed(i)=SQRT(u1(i)**2+v1(i)**2) |
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| 96 | ri1(i) = 0.0 |
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| 97 | ENDDO |
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| 98 | ! |
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| 99 | okri=.FALSE. |
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| 100 | ! CALL coefcdrag(klon, knon, nsrf, zxli, & |
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| 101 | ! & speed, t1, q1, z1, psol, & |
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| 102 | ! & ts1, qsurf, rugos, okri, ri1, & |
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| 103 | ! & cdram, cdrah, cdran, zri1, pref) |
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| 104 | ! Fuxing WANG, 04/03/2015, replace the coefcdrag by the merged version: cdrag |
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| 105 | |
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| 106 | CALL cdrag(knon, nsrf, & |
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| 107 | & speed, t1, q1, z1, & |
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| 108 | & psol, ts1, qsurf, z0m, z0h, & |
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| 109 | & cdram, cdrah, zri1, pref) |
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| 110 | |
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| 111 | ! --- special Dice: on force cdragm ( a defaut de forcer ustar) MPL 05082013 |
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| 112 | IF (ok_prescr_ust) then |
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| 113 | DO i = 1, knon |
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| 114 | print *,'cdram avant=',cdram(i) |
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| 115 | cdram(i) = ust*ust/speed(i)/speed(i) |
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| 116 | print *,'cdram ust speed apres=',cdram(i),ust,speed |
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| 117 | ENDDO |
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| 118 | ENDIF |
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| 119 | ! |
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| 120 | !---------Star variables---------------------------------------------------- |
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| 121 | ! |
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| 122 | DO i = 1, knon |
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| 123 | ri1(i) = zri1(i) |
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| 124 | tpot(i) = t1(i)* (psol(i)/pat1(i))**RKAPPA |
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| 125 | ustar(i) = sqrt(cdram(i) * speed(i) * speed(i)) |
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| 126 | zdte(i) = tpot(i) - ts1(i) |
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| 127 | zdq(i) = max(q1(i),0.0) - max(qsurf(i),0.0) |
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| 128 | ! |
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| 129 | ! |
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| 130 | !IM BUG BUG BUG zdte(i) = max(zdte(i),1.e-10) |
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| 131 | zdte(i) = sign(max(abs(zdte(i)),1.e-10),zdte(i)) |
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| 132 | ! |
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| 133 | testar(i) = (cdrah(i) * zdte(i) * speed(i))/ustar(i) |
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| 134 | qstar(i) = (cdrah(i) * zdq(i) * speed(i))/ustar(i) |
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| 135 | lmon(i) = (ustar(i) * ustar(i) * tpot(i))/ & |
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| 136 | & (RKAR * RG * testar(i)) |
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| 137 | ENDDO |
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| 138 | ! |
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| 139 | !----------First aproximation of variables at zref -------------------------- |
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| 140 | zref = 2.0 |
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| 141 | CALL screenp(klon, knon, nsrf, speed, tpot, q1, & |
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| 142 | & ts1, qsurf, z0m, lmon, & |
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| 143 | & ustar, testar, qstar, zref, & |
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| 144 | & delu, delte, delq) |
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| 145 | ! |
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| 146 | DO i = 1, knon |
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| 147 | u_zref(i) = delu(i) |
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| 148 | q_zref(i) = max(qsurf(i),0.0) + delq(i) |
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| 149 | te_zref(i) = ts1(i) + delte(i) |
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| 150 | temp(i) = te_zref(i) * (psol(i)/pat1(i))**(-RKAPPA) |
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| 151 | q_zref_p(i) = q_zref(i) |
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| 152 | ! te_zref_p(i) = te_zref(i) |
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| 153 | temp_p(i) = temp(i) |
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| 154 | ENDDO |
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| 155 | ! |
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| 156 | ! Iteration of the variables at the reference level zref : corrector calculation ; see Hess & McAvaney, 1995 |
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| 157 | ! |
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| 158 | DO n = 1, niter |
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| 159 | ! |
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| 160 | okri=.TRUE. |
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| 161 | CALL screenc(klon, knon, nsrf, zxli, & |
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| 162 | & u_zref, temp, q_zref, zref, & |
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| 163 | & ts1, qsurf, z0m, z0h, psol, & |
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| 164 | & ustar, testar, qstar, okri, ri1, & |
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| 165 | & pref, delu, delte, delq) |
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| 166 | ! |
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| 167 | DO i = 1, knon |
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| 168 | u_zref(i) = delu(i) |
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| 169 | q_zref(i) = delq(i) + max(qsurf(i),0.0) |
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| 170 | te_zref(i) = delte(i) + ts1(i) |
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| 171 | ! |
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| 172 | ! return to normal temperature |
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| 173 | ! |
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| 174 | temp(i) = te_zref(i) * (psol(i)/pref(i))**(-RKAPPA) |
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| 175 | ! temp(i) = te_zref(i) - (zref* RG)/RCPD/ & |
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| 176 | ! (1 + RVTMP2 * max(q_zref(i),0.0)) |
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| 177 | ! |
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| 178 | !IM +++ |
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| 179 | ! IF(temp(i).GT.350.) THEN |
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| 180 | ! WRITE(*,*) 'temp(i) GT 350 K !!',i,nsrf,temp(i) |
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| 181 | ! ENDIF |
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| 182 | !IM --- |
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| 183 | ! |
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| 184 | IF(n.EQ.ncon) THEN |
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| 185 | te_zref_con(i) = te_zref(i) |
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| 186 | q_zref_con(i) = q_zref(i) |
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| 187 | ENDIF |
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| 188 | ! |
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| 189 | ENDDO |
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| 190 | ! |
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| 191 | ENDDO |
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| 192 | ! |
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| 193 | ! verifier le critere de convergence : 0.25% pour te_zref et 5% pour qe_zref |
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| 194 | ! |
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| 195 | ! DO i = 1, knon |
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| 196 | ! conv_te(i) = (te_zref(i) - te_zref_con(i))/te_zref_con(i) |
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| 197 | ! conv_q(i) = (q_zref(i) - q_zref_con(i))/q_zref_con(i) |
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| 198 | !IM +++ |
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| 199 | ! IF(abs(conv_te(i)).GE.0.0025.AND.abs(conv_q(i)).GE.0.05) THEN |
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| 200 | ! PRINT*,'DIV','i=',i,te_zref_con(i),te_zref(i),conv_te(i), & |
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| 201 | ! q_zref_con(i),q_zref(i),conv_q(i) |
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| 202 | ! ENDIF |
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| 203 | !IM --- |
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| 204 | ! ENDDO |
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| 205 | ! |
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| 206 | DO i = 1, knon |
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| 207 | q_zref_c(i) = q_zref(i) |
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| 208 | temp_c(i) = temp(i) |
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| 209 | ! |
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| 210 | ! IF(zri1(i).LT.0.) THEN |
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| 211 | ! IF(nsrf.EQ.1) THEN |
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| 212 | ! ok_pred(i)=1. |
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| 213 | ! ok_corr(i)=0. |
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| 214 | ! ELSE |
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| 215 | ! ok_pred(i)=0. |
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| 216 | ! ok_corr(i)=1. |
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| 217 | ! ENDIF |
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| 218 | ! ELSE |
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| 219 | ! ok_pred(i)=0. |
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| 220 | ! ok_corr(i)=1. |
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| 221 | ! ENDIF |
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| 222 | ! |
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| 223 | ok_pred(i)=0. |
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| 224 | ok_corr(i)=1. |
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| 225 | ! |
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| 226 | t_2m(i) = temp_p(i) * ok_pred(i) + temp_c(i) * ok_corr(i) |
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| 227 | q_2m(i) = q_zref_p(i) * ok_pred(i) + q_zref_c(i) * ok_corr(i) |
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| 228 | !IM +++ |
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| 229 | ! IF(n.EQ.niter) THEN |
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| 230 | ! IF(t_2m(i).LT.t1(i).AND.t_2m(i).LT.ts1(i)) THEN |
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| 231 | ! PRINT*,' BAD t2m LT ',i,nsrf,t_2m(i),t1(i),ts1(i) |
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| 232 | ! ELSEIF(t_2m(i).GT.t1(i).AND.t_2m(i).GT.ts1(i)) THEN |
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| 233 | ! PRINT*,' BAD t2m GT ',i,nsrf,t_2m(i),t1(i),ts1(i) |
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| 234 | ! ENDIF |
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| 235 | ! ENDIF |
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| 236 | !IM --- |
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| 237 | ENDDO |
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| 238 | ! |
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| 239 | ! |
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| 240 | !----------First aproximation of variables at zref -------------------------- |
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| 241 | ! |
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| 242 | zref = 10.0 |
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| 243 | CALL screenp(klon, knon, nsrf, speed, tpot, q1, & |
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| 244 | & ts1, qsurf, z0m, lmon, & |
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| 245 | & ustar, testar, qstar, zref, & |
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| 246 | & delu, delte, delq) |
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| 247 | ! |
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| 248 | DO i = 1, knon |
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| 249 | u_zref(i) = delu(i) |
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| 250 | q_zref(i) = max(qsurf(i),0.0) + delq(i) |
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| 251 | te_zref(i) = ts1(i) + delte(i) |
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| 252 | temp(i) = te_zref(i) * (psol(i)/pat1(i))**(-RKAPPA) |
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| 253 | ! temp(i) = te_zref(i) - (zref* RG)/RCPD/ & |
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| 254 | ! (1 + RVTMP2 * max(q_zref(i),0.0)) |
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| 255 | u_zref_p(i) = u_zref(i) |
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| 256 | ENDDO |
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| 257 | ! |
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| 258 | ! Iteration of the variables at the reference level zref : corrector ; see Hess & McAvaney, 1995 |
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| 259 | ! |
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| 260 | DO n = 1, niter |
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| 261 | ! |
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| 262 | okri=.TRUE. |
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| 263 | CALL screenc(klon, knon, nsrf, zxli, & |
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| 264 | & u_zref, temp, q_zref, zref, & |
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| 265 | & ts1, qsurf, z0m, z0h, psol, & |
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| 266 | & ustar, testar, qstar, okri, ri1, & |
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| 267 | & pref, delu, delte, delq) |
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| 268 | ! |
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| 269 | DO i = 1, knon |
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| 270 | u_zref(i) = delu(i) |
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| 271 | q_zref(i) = delq(i) + max(qsurf(i),0.0) |
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| 272 | te_zref(i) = delte(i) + ts1(i) |
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| 273 | temp(i) = te_zref(i) * (psol(i)/pref(i))**(-RKAPPA) |
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| 274 | ! temp(i) = te_zref(i) - (zref* RG)/RCPD/ & |
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| 275 | ! (1 + RVTMP2 * max(q_zref(i),0.0)) |
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| 276 | ENDDO |
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| 277 | ! |
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| 278 | ENDDO |
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| 279 | ! |
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| 280 | DO i = 1, knon |
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| 281 | u_zref_c(i) = u_zref(i) |
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| 282 | ! |
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| 283 | u_10m(i) = u_zref_p(i) * ok_pred(i) + u_zref_c(i) * ok_corr(i) |
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| 284 | ! |
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| 285 | !AM |
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| 286 | q_zref_c(i) = q_zref(i) |
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| 287 | temp_c(i) = temp(i) |
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| 288 | t_10m(i) = temp_p(i) * ok_pred(i) + temp_c(i) * ok_corr(i) |
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| 289 | q_10m(i) = q_zref_p(i) * ok_pred(i) + q_zref_c(i) * ok_corr(i) |
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| 290 | !MA |
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| 291 | ENDDO |
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| 292 | ! |
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| 293 | RETURN |
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| 294 | END subroutine stdlevvar |
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