[782] | 1 | ! |
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[2538] | 2 | ! $Id: calcul_fluxs_mod.F90 2538 2016-06-03 14:12:16Z nfevrier $ |
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| 3 | ! |
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[782] | 4 | MODULE calcul_fluxs_mod |
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| 5 | |
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| 6 | |
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| 7 | CONTAINS |
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| 8 | SUBROUTINE calcul_fluxs( knon, nisurf, dtime, & |
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[2254] | 9 | tsurf, p1lay, cal, beta, cdragh, cdragq, ps, & |
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[782] | 10 | precip_rain, precip_snow, snow, qsurf, & |
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[2240] | 11 | radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, gustiness, & |
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[2254] | 12 | fqsat, petAcoef, peqAcoef, petBcoef, peqBcoef, & |
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[2538] | 13 | tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l, & |
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| 14 | sens_prec_liq, sens_prec_sol, lat_prec_liq, lat_prec_sol) |
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| 15 | |
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[782] | 16 | |
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| 17 | USE dimphy, ONLY : klon |
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[1785] | 18 | USE indice_sol_mod |
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[782] | 19 | |
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[2240] | 20 | INCLUDE "clesphys.h" |
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| 21 | |
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[782] | 22 | ! Cette routine calcule les fluxs en h et q a l'interface et eventuellement |
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| 23 | ! une temperature de surface (au cas ou ok_veget = false) |
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| 24 | ! |
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| 25 | ! L. Fairhead 4/2000 |
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| 26 | ! |
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| 27 | ! input: |
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| 28 | ! knon nombre de points a traiter |
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| 29 | ! nisurf surface a traiter |
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| 30 | ! tsurf temperature de surface |
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| 31 | ! p1lay pression 1er niveau (milieu de couche) |
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| 32 | ! cal capacite calorifique du sol |
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| 33 | ! beta evap reelle |
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[2254] | 34 | ! cdragh coefficient d'echange temperature |
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| 35 | ! cdragq coefficient d'echange evaporation |
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[782] | 36 | ! ps pression au sol |
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| 37 | ! precip_rain precipitations liquides |
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| 38 | ! precip_snow precipitations solides |
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| 39 | ! snow champs hauteur de neige |
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| 40 | ! runoff runoff en cas de trop plein |
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| 41 | ! petAcoef coeff. A de la resolution de la CL pour t |
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| 42 | ! peqAcoef coeff. A de la resolution de la CL pour q |
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| 43 | ! petBcoef coeff. B de la resolution de la CL pour t |
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| 44 | ! peqBcoef coeff. B de la resolution de la CL pour q |
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| 45 | ! radsol rayonnement net aus sol (LW + SW) |
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| 46 | ! dif_grnd coeff. diffusion vers le sol profond |
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| 47 | ! |
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| 48 | ! output: |
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| 49 | ! tsurf_new temperature au sol |
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| 50 | ! qsurf humidite de l'air au dessus du sol |
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| 51 | ! fluxsens flux de chaleur sensible |
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| 52 | ! fluxlat flux de chaleur latente |
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| 53 | ! dflux_s derivee du flux de chaleur sensible / Ts |
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| 54 | ! dflux_l derivee du flux de chaleur latente / Ts |
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[2538] | 55 | ! sens_prec_liq flux sensible lié aux echanges de precipitations liquides |
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| 56 | ! sens_prec_sol precipitations solides |
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| 57 | ! lat_prec_liq flux latent lié aux echanges de precipitations liquides |
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| 58 | ! lat_prec_sol precipitations solides |
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[782] | 59 | |
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[793] | 60 | INCLUDE "YOETHF.h" |
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| 61 | INCLUDE "FCTTRE.h" |
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| 62 | INCLUDE "YOMCST.h" |
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[782] | 63 | |
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| 64 | ! Parametres d'entree |
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| 65 | !**************************************************************************************** |
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| 66 | INTEGER, INTENT(IN) :: knon, nisurf |
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| 67 | REAL , INTENT(IN) :: dtime |
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| 68 | REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef |
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| 69 | REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef |
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| 70 | REAL, DIMENSION(klon), INTENT(IN) :: ps, q1lay |
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[2254] | 71 | REAL, DIMENSION(klon), INTENT(IN) :: tsurf, p1lay, cal, beta, cdragh,cdragq |
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[782] | 72 | REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow ! pas utiles |
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| 73 | REAL, DIMENSION(klon), INTENT(IN) :: radsol, dif_grnd |
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[2240] | 74 | REAL, DIMENSION(klon), INTENT(IN) :: t1lay, u1lay, v1lay,gustiness |
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[2254] | 75 | REAL, INTENT(IN) :: fqsat ! correction factor on qsat (generally 0.98 over salty water, 1 everywhere else) |
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[782] | 76 | |
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| 77 | ! Parametres entree-sorties |
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| 78 | !**************************************************************************************** |
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| 79 | REAL, DIMENSION(klon), INTENT(INOUT) :: snow ! snow pas utile |
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| 80 | |
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| 81 | ! Parametres sorties |
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| 82 | !**************************************************************************************** |
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| 83 | REAL, DIMENSION(klon), INTENT(OUT) :: qsurf |
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| 84 | REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new, evap, fluxsens, fluxlat |
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| 85 | REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l |
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[2538] | 86 | REAL, DIMENSION(klon), OPTIONAL :: sens_prec_liq, sens_prec_sol |
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| 87 | REAL, DIMENSION(klon), OPTIONAL :: lat_prec_liq, lat_prec_sol |
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[782] | 88 | |
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| 89 | ! Variables locales |
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| 90 | !**************************************************************************************** |
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| 91 | INTEGER :: i |
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| 92 | REAL, DIMENSION(klon) :: zx_mh, zx_nh, zx_oh |
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| 93 | REAL, DIMENSION(klon) :: zx_mq, zx_nq, zx_oq |
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[2254] | 94 | REAL, DIMENSION(klon) :: zx_pkh, zx_dq_s_dt, zx_qsat |
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| 95 | REAL, DIMENSION(klon) :: zx_sl, zx_coefh, zx_coefq, zx_wind |
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[782] | 96 | REAL, DIMENSION(klon) :: d_ts |
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| 97 | REAL :: zdelta, zcvm5, zx_qs, zcor, zx_dq_s_dh |
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| 98 | REAL :: qsat_new, q1_new |
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| 99 | REAL, PARAMETER :: t_grnd = 271.35, t_coup = 273.15 |
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| 100 | REAL, PARAMETER :: max_eau_sol = 150.0 |
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| 101 | CHARACTER (len = 20) :: modname = 'calcul_fluxs' |
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| 102 | LOGICAL :: fonte_neige |
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| 103 | LOGICAL, SAVE :: check = .FALSE. |
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| 104 | !$OMP THREADPRIVATE(check) |
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| 105 | |
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| 106 | ! End definition |
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| 107 | !**************************************************************************************** |
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| 108 | |
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| 109 | IF (check) WRITE(*,*)'Entree ', modname,' surface = ',nisurf |
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| 110 | |
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| 111 | IF (check) THEN |
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| 112 | WRITE(*,*)' radsol (min, max)', & |
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| 113 | MINVAL(radsol(1:knon)), MAXVAL(radsol(1:knon)) |
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| 114 | ENDIF |
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| 115 | |
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| 116 | ! Traitement neige et humidite du sol |
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| 117 | !**************************************************************************************** |
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| 118 | ! |
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| 119 | !!$ WRITE(*,*)'test calcul_flux, surface ', nisurf |
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| 120 | !!PB test |
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| 121 | !!$ if (nisurf == is_oce) then |
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| 122 | !!$ snow = 0. |
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| 123 | !!$ qsol = max_eau_sol |
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| 124 | !!$ else |
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| 125 | !!$ where (precip_snow > 0.) snow = snow + (precip_snow * dtime) |
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| 126 | !!$ where (snow > epsilon(snow)) snow = max(0.0, snow - (evap * dtime)) |
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| 127 | !!$! snow = max(0.0, snow + (precip_snow - evap) * dtime) |
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| 128 | !!$ where (precip_rain > 0.) qsol = qsol + (precip_rain - evap) * dtime |
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| 129 | !!$ endif |
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| 130 | !!$ IF (nisurf /= is_ter) qsol = max_eau_sol |
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| 131 | |
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| 132 | |
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| 133 | ! |
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| 134 | ! Initialisation |
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| 135 | !**************************************************************************************** |
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| 136 | evap = 0. |
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| 137 | fluxsens=0. |
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| 138 | fluxlat=0. |
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| 139 | dflux_s = 0. |
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[2254] | 140 | dflux_l = 0. |
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[2538] | 141 | if (PRESENT(sens_prec_liq)) sens_prec_liq = 0. |
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| 142 | if (PRESENT(sens_prec_sol)) sens_prec_sol = 0. |
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| 143 | if (PRESENT(lat_prec_liq)) lat_prec_liq = 0. |
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| 144 | if (PRESENT(lat_prec_sol)) lat_prec_sol = 0. |
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[782] | 145 | ! |
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| 146 | ! zx_qs = qsat en kg/kg |
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| 147 | !**************************************************************************************** |
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| 148 | DO i = 1, knon |
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| 149 | zx_pkh(i) = (ps(i)/ps(i))**RKAPPA |
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| 150 | IF (thermcep) THEN |
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| 151 | zdelta=MAX(0.,SIGN(1.,rtt-tsurf(i))) |
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| 152 | zcvm5 = R5LES*RLVTT*(1.-zdelta) + R5IES*RLSTT*zdelta |
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| 153 | zcvm5 = zcvm5 / RCPD / (1.0+RVTMP2*q1lay(i)) |
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| 154 | zx_qs= r2es * FOEEW(tsurf(i),zdelta)/ps(i) |
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| 155 | zx_qs=MIN(0.5,zx_qs) |
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| 156 | zcor=1./(1.-retv*zx_qs) |
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| 157 | zx_qs=zx_qs*zcor |
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| 158 | zx_dq_s_dh = FOEDE(tsurf(i),zdelta,zcvm5,zx_qs,zcor) & |
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| 159 | /RLVTT / zx_pkh(i) |
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| 160 | ELSE |
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| 161 | IF (tsurf(i).LT.t_coup) THEN |
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| 162 | zx_qs = qsats(tsurf(i)) / ps(i) |
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| 163 | zx_dq_s_dh = dqsats(tsurf(i),zx_qs)/RLVTT & |
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| 164 | / zx_pkh(i) |
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| 165 | ELSE |
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| 166 | zx_qs = qsatl(tsurf(i)) / ps(i) |
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| 167 | zx_dq_s_dh = dqsatl(tsurf(i),zx_qs)/RLVTT & |
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| 168 | / zx_pkh(i) |
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| 169 | ENDIF |
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| 170 | ENDIF |
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| 171 | zx_dq_s_dt(i) = RCPD * zx_pkh(i) * zx_dq_s_dh |
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| 172 | zx_qsat(i) = zx_qs |
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[2254] | 173 | zx_wind(i)=min_wind_speed+SQRT(gustiness(i)+u1lay(i)**2+v1lay(i)**2) |
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| 174 | zx_coefh(i) = cdragh(i) * zx_wind(i) * p1lay(i)/(RD*t1lay(i)) |
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| 175 | zx_coefq(i) = cdragq(i) * zx_wind(i) * p1lay(i)/(RD*t1lay(i)) |
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| 176 | ! zx_wind(i)=min_wind_speed+SQRT(gustiness(i)+u1lay(i)**2+v1lay(i)**2) & |
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| 177 | ! * p1lay(i)/(RD*t1lay(i)) |
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| 178 | ! zx_coefh(i) = cdragh(i) * zx_wind(i) |
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| 179 | ! zx_coefq(i) = cdragq(i) * zx_wind(i) |
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[782] | 180 | ENDDO |
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| 181 | |
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| 182 | |
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| 183 | ! === Calcul de la temperature de surface === |
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| 184 | ! zx_sl = chaleur latente d'evaporation ou de sublimation |
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| 185 | !**************************************************************************************** |
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| 186 | |
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| 187 | DO i = 1, knon |
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| 188 | zx_sl(i) = RLVTT |
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| 189 | IF (tsurf(i) .LT. RTT) zx_sl(i) = RLSTT |
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| 190 | ENDDO |
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| 191 | |
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| 192 | |
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| 193 | DO i = 1, knon |
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| 194 | ! Q |
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[2254] | 195 | zx_oq(i) = 1. - (beta(i) * zx_coefq(i) * peqBcoef(i) * dtime) |
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| 196 | zx_mq(i) = beta(i) * zx_coefq(i) * & |
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| 197 | (peqAcoef(i) - & |
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| 198 | ! conv num avec precedente version |
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| 199 | fqsat * zx_qsat(i) + fqsat * zx_dq_s_dt(i) * tsurf(i)) & |
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| 200 | ! fqsat * ( zx_qsat(i) - zx_dq_s_dt(i) * tsurf(i)) ) & |
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[782] | 201 | / zx_oq(i) |
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[2254] | 202 | zx_nq(i) = beta(i) * zx_coefq(i) * (- fqsat * zx_dq_s_dt(i)) & |
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[782] | 203 | / zx_oq(i) |
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| 204 | |
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| 205 | ! H |
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[2254] | 206 | zx_oh(i) = 1. - (zx_coefh(i) * petBcoef(i) * dtime) |
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| 207 | zx_mh(i) = zx_coefh(i) * petAcoef(i) / zx_oh(i) |
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| 208 | zx_nh(i) = - (zx_coefh(i) * RCPD * zx_pkh(i))/ zx_oh(i) |
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[782] | 209 | |
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| 210 | ! Tsurface |
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| 211 | tsurf_new(i) = (tsurf(i) + cal(i)/(RCPD * zx_pkh(i)) * dtime * & |
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| 212 | (radsol(i) + zx_mh(i) + zx_sl(i) * zx_mq(i)) & |
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| 213 | + dif_grnd(i) * t_grnd * dtime)/ & |
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| 214 | ( 1. - dtime * cal(i)/(RCPD * zx_pkh(i)) * ( & |
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| 215 | zx_nh(i) + zx_sl(i) * zx_nq(i)) & |
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| 216 | + dtime * dif_grnd(i)) |
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| 217 | |
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| 218 | ! |
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| 219 | ! Y'a-t-il fonte de neige? |
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| 220 | ! |
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| 221 | ! fonte_neige = (nisurf /= is_oce) .AND. & |
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| 222 | ! & (snow(i) > epsfra .OR. nisurf == is_sic .OR. nisurf == is_lic) & |
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| 223 | ! & .AND. (tsurf_new(i) >= RTT) |
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| 224 | ! if (fonte_neige) tsurf_new(i) = RTT |
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| 225 | d_ts(i) = tsurf_new(i) - tsurf(i) |
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| 226 | ! zx_h_ts(i) = tsurf_new(i) * RCPD * zx_pkh(i) |
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| 227 | ! zx_q_0(i) = zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
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| 228 | |
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| 229 | !== flux_q est le flux de vapeur d'eau: kg/(m**2 s) positive vers bas |
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| 230 | !== flux_t est le flux de cpt (energie sensible): j/(m**2 s) |
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| 231 | evap(i) = - zx_mq(i) - zx_nq(i) * tsurf_new(i) |
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| 232 | fluxlat(i) = - evap(i) * zx_sl(i) |
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| 233 | fluxsens(i) = zx_mh(i) + zx_nh(i) * tsurf_new(i) |
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| 234 | |
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| 235 | ! Derives des flux dF/dTs (W m-2 K-1): |
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| 236 | dflux_s(i) = zx_nh(i) |
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| 237 | dflux_l(i) = (zx_sl(i) * zx_nq(i)) |
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| 238 | |
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| 239 | ! Nouvelle valeure de l'humidite au dessus du sol |
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| 240 | qsat_new=zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
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| 241 | q1_new = peqAcoef(i) - peqBcoef(i)*evap(i)*dtime |
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| 242 | qsurf(i)=q1_new*(1.-beta(i)) + beta(i)*qsat_new |
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| 243 | ! |
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| 244 | ! en cas de fonte de neige |
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| 245 | ! |
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| 246 | ! if (fonte_neige) then |
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| 247 | ! bilan_f = radsol(i) + fluxsens(i) - (zx_sl(i) * evap (i)) - & |
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| 248 | ! & dif_grnd(i) * (tsurf_new(i) - t_grnd) - & |
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| 249 | ! & RCPD * (zx_pkh(i))/cal(i)/dtime * (tsurf_new(i) - tsurf(i)) |
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| 250 | ! bilan_f = max(0., bilan_f) |
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| 251 | ! fq_fonte = bilan_f / zx_sl(i) |
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| 252 | ! snow(i) = max(0., snow(i) - fq_fonte * dtime) |
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| 253 | ! qsol(i) = qsol(i) + (fq_fonte * dtime) |
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| 254 | ! endif |
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| 255 | !!$ if (nisurf == is_ter) & |
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| 256 | !!$ & run_off(i) = run_off(i) + max(qsol(i) - max_eau_sol, 0.0) |
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| 257 | !!$ qsol(i) = min(qsol(i), max_eau_sol) |
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[2538] | 258 | ! |
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| 259 | ! calcul de l'enthalpie des precipitations liquides et solides |
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| 260 | ! |
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| 261 | ! if (PRESENT(enth_prec_liq)) & |
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| 262 | ! enth_prec_liq(i) = rcw * (t1lay(i) - tsurf(i)) * & |
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| 263 | ! precip_rain(i) |
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| 264 | ! if (PRESENT(enth_prec_sol)) & |
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| 265 | ! enth_prec_sol(i) = rcs * (t1lay(i) - tsurf(i)) * & |
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| 266 | ! precip_snow(i) |
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| 267 | ! On calcule par rapport a T=0 |
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| 268 | if (PRESENT(sens_prec_liq)) & |
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| 269 | sens_prec_liq(i) = rcw * (t1lay(i) - RTT) * & |
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| 270 | precip_rain(i) |
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| 271 | if (PRESENT(sens_prec_sol)) & |
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| 272 | sens_prec_sol(i) = rcs * (t1lay(i) - RTT) * & |
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| 273 | precip_snow(i) |
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| 274 | if (PRESENT(lat_prec_liq)) & |
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| 275 | lat_prec_liq(i) = precip_rain(i) * (RLVTT - RLVTT) |
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| 276 | if (PRESENT(lat_prec_sol)) & |
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| 277 | lat_prec_sol(i) = precip_snow(i) * (RLSTT - RLVTT) |
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[782] | 278 | ENDDO |
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[2538] | 279 | |
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| 280 | |
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| 281 | ! if (PRESENT(sens_prec_liq)) & |
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| 282 | ! WRITE(*,*)' calculs_fluxs sens_prec_liq (min, max)', & |
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| 283 | ! MINVAL(sens_prec_liq(1:knon)), MAXVAL(sens_prec_liq(1:knon)) |
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| 284 | ! if (PRESENT(sens_prec_sol)) & |
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| 285 | ! WRITE(*,*)' calculs_fluxs sens_prec_sol (min, max)', & |
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| 286 | ! MINVAL(sens_prec_sol(1:knon)), MAXVAL(sens_prec_sol(1:knon)) |
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| 287 | |
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[782] | 288 | ! |
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| 289 | !**************************************************************************************** |
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| 290 | ! |
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| 291 | END SUBROUTINE calcul_fluxs |
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[1067] | 292 | ! |
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| 293 | !**************************************************************************************** |
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| 294 | ! |
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| 295 | SUBROUTINE calcul_flux_wind(knon, dtime, & |
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[2240] | 296 | u0, v0, u1, v1, gustiness, cdrag_m, & |
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[1067] | 297 | AcoefU, AcoefV, BcoefU, BcoefV, & |
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| 298 | p1lay, t1lay, & |
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| 299 | flux_u1, flux_v1) |
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[782] | 300 | |
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[1067] | 301 | USE dimphy |
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| 302 | INCLUDE "YOMCST.h" |
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[2240] | 303 | INCLUDE "clesphys.h" |
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[1067] | 304 | |
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| 305 | ! Input arguments |
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| 306 | !**************************************************************************************** |
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| 307 | INTEGER, INTENT(IN) :: knon |
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| 308 | REAL, INTENT(IN) :: dtime |
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| 309 | REAL, DIMENSION(klon), INTENT(IN) :: u0, v0 ! u and v at niveau 0 |
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[2240] | 310 | REAL, DIMENSION(klon), INTENT(IN) :: u1, v1, gustiness ! u and v at niveau 1 |
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[1067] | 311 | REAL, DIMENSION(klon), INTENT(IN) :: cdrag_m ! cdrag pour momentum |
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| 312 | REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV |
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| 313 | REAL, DIMENSION(klon), INTENT(IN) :: p1lay ! pression 1er niveau (milieu de couche) |
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| 314 | REAL, DIMENSION(klon), INTENT(IN) :: t1lay ! temperature |
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| 315 | ! Output arguments |
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| 316 | !**************************************************************************************** |
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| 317 | REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1 |
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| 318 | REAL, DIMENSION(klon), INTENT(OUT) :: flux_v1 |
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| 319 | |
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| 320 | ! Local variables |
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| 321 | !**************************************************************************************** |
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| 322 | INTEGER :: i |
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| 323 | REAL :: mod_wind, buf |
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| 324 | |
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| 325 | !**************************************************************************************** |
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| 326 | ! Calculate the surface flux |
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| 327 | ! |
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| 328 | !**************************************************************************************** |
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| 329 | DO i=1,knon |
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[2240] | 330 | mod_wind = min_wind_speed + SQRT(gustiness(i)+(u1(i) - u0(i))**2 + (v1(i)-v0(i))**2) |
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[1067] | 331 | buf = cdrag_m(i) * mod_wind * p1lay(i)/(RD*t1lay(i)) |
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| 332 | flux_u1(i) = (AcoefU(i) - u0(i)) / (1/buf - BcoefU(i)*dtime ) |
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| 333 | flux_v1(i) = (AcoefV(i) - v0(i)) / (1/buf - BcoefV(i)*dtime ) |
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| 334 | END DO |
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| 335 | |
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| 336 | END SUBROUTINE calcul_flux_wind |
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| 337 | ! |
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| 338 | !**************************************************************************************** |
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| 339 | ! |
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[782] | 340 | END MODULE calcul_fluxs_mod |
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