| 1 | ! |
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| 2 | MODULE calcul_fluxs_mod |
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| 3 | |
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| 4 | |
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| 5 | CONTAINS |
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| 6 | SUBROUTINE calcul_fluxs( knon, nisurf, dtime, & |
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| 7 | tsurf, p1lay, cal, beta, coef1lay, ps, & |
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| 8 | precip_rain, precip_snow, snow, qsurf, & |
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| 9 | radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, & |
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| 10 | petAcoef, peqAcoef, petBcoef, peqBcoef, & |
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| 11 | tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
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| 12 | |
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| 13 | USE dimphy, ONLY : klon |
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| 14 | USE indice_sol_mod |
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| 15 | |
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| 16 | ! Cette routine calcule les fluxs en h et q a l'interface et eventuellement |
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| 17 | ! une temperature de surface (au cas ou ok_veget = false) |
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| 18 | ! |
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| 19 | ! L. Fairhead 4/2000 |
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| 20 | ! |
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| 21 | ! input: |
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| 22 | ! knon nombre de points a traiter |
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| 23 | ! nisurf surface a traiter |
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| 24 | ! tsurf temperature de surface |
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| 25 | ! p1lay pression 1er niveau (milieu de couche) |
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| 26 | ! cal capacite calorifique du sol |
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| 27 | ! beta evap reelle |
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| 28 | ! coef1lay coefficient d'echange |
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| 29 | ! ps pression au sol |
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| 30 | ! precip_rain precipitations liquides |
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| 31 | ! precip_snow precipitations solides |
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| 32 | ! snow champs hauteur de neige |
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| 33 | ! runoff runoff en cas de trop plein |
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| 34 | ! petAcoef coeff. A de la resolution de la CL pour t |
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| 35 | ! peqAcoef coeff. A de la resolution de la CL pour q |
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| 36 | ! petBcoef coeff. B de la resolution de la CL pour t |
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| 37 | ! peqBcoef coeff. B de la resolution de la CL pour q |
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| 38 | ! radsol rayonnement net aus sol (LW + SW) |
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| 39 | ! dif_grnd coeff. diffusion vers le sol profond |
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| 40 | ! |
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| 41 | ! output: |
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| 42 | ! tsurf_new temperature au sol |
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| 43 | ! qsurf humidite de l'air au dessus du sol |
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| 44 | ! fluxsens flux de chaleur sensible |
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| 45 | ! fluxlat flux de chaleur latente |
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| 46 | ! dflux_s derivee du flux de chaleur sensible / Ts |
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| 47 | ! dflux_l derivee du flux de chaleur latente / Ts |
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| 48 | ! |
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| 49 | |
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| 50 | INCLUDE "YOETHF.h" |
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| 51 | INCLUDE "FCTTRE.h" |
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| 52 | INCLUDE "YOMCST.h" |
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| 53 | |
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| 54 | ! Parametres d'entree |
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| 55 | !**************************************************************************************** |
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| 56 | INTEGER, INTENT(IN) :: knon, nisurf |
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| 57 | REAL , INTENT(IN) :: dtime |
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| 58 | REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef |
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| 59 | REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef |
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| 60 | REAL, DIMENSION(klon), INTENT(IN) :: ps, q1lay |
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| 61 | REAL, DIMENSION(klon), INTENT(IN) :: tsurf, p1lay, cal, beta, coef1lay |
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| 62 | REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow ! pas utiles |
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| 63 | REAL, DIMENSION(klon), INTENT(IN) :: radsol, dif_grnd |
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| 64 | REAL, DIMENSION(klon), INTENT(IN) :: t1lay, u1lay, v1lay |
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| 65 | |
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| 66 | ! Parametres entree-sorties |
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| 67 | !**************************************************************************************** |
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| 68 | REAL, DIMENSION(klon), INTENT(INOUT) :: snow ! snow pas utile |
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| 69 | |
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| 70 | ! Parametres sorties |
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| 71 | !**************************************************************************************** |
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| 72 | REAL, DIMENSION(klon), INTENT(OUT) :: qsurf |
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| 73 | REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new, evap, fluxsens, fluxlat |
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| 74 | REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l |
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| 75 | |
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| 76 | ! Variables locales |
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| 77 | !**************************************************************************************** |
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| 78 | INTEGER :: i |
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| 79 | REAL, DIMENSION(klon) :: zx_mh, zx_nh, zx_oh |
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| 80 | REAL, DIMENSION(klon) :: zx_mq, zx_nq, zx_oq |
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| 81 | REAL, DIMENSION(klon) :: zx_pkh, zx_dq_s_dt, zx_qsat, zx_coef |
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| 82 | REAL, DIMENSION(klon) :: zx_sl, zx_k1 |
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| 83 | REAL, DIMENSION(klon) :: d_ts |
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| 84 | REAL :: zdelta, zcvm5, zx_qs, zcor, zx_dq_s_dh |
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| 85 | REAL :: qsat_new, q1_new |
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| 86 | REAL, PARAMETER :: t_grnd = 271.35, t_coup = 273.15 |
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| 87 | REAL, PARAMETER :: max_eau_sol = 150.0 |
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| 88 | CHARACTER (len = 20) :: modname = 'calcul_fluxs' |
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| 89 | LOGICAL :: fonte_neige |
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| 90 | LOGICAL, SAVE :: check = .FALSE. |
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| 91 | !$OMP THREADPRIVATE(check) |
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| 92 | |
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| 93 | ! End definition |
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| 94 | !**************************************************************************************** |
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| 95 | !Lluis |
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| 96 | INTEGER :: lpt |
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| 97 | lpt = 550 |
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| 98 | |
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| 99 | IF (nisurf == 3) THEN |
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| 100 | PRINT *,' Lluis in calcul_fluxs________________________' |
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| 101 | PRINT *,' knon: ',knon,' nisurf:' , nisurf, ' dtime: ',dtime |
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| 102 | PRINT *,' tsurf: ',tsurf(lpt),' p1lay: ', p1lay(lpt),' cal: ',cal(lpt),' beta: ', beta(lpt) |
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| 103 | PRINT *,' coef1lay: ', coef1lay(lpt),' ps: ', ps(lpt) |
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| 104 | PRINT *,' p_rain: ',precip_rain(lpt),' p_snow: ', precip_snow(lpt),' snow: ', snow(lpt) |
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| 105 | PRINT *,' qsurf: ', qsurf(lpt) |
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| 106 | PRINT *,' radsol: ',radsol(lpt),' dif_grnd: ', dif_grnd(lpt),' t1lay: ', t1lay(lpt) |
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| 107 | PRINT *,' q1lay: ', q1lay(lpt),' u1lay: ', u1lay(lpt),' v1lay: ', v1lay(lpt) |
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| 108 | PRINT *,' ptAcoef: ', petAcoef(lpt),' peqAcoef: ', peqAcoef(lpt) |
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| 109 | PRINT *,' pteBcoef: ', petBcoef(lpt),' peqBcoef: ', peqBcoef(lpt) |
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| 110 | PRINT *,' tsurf_new: ', tsurf_new(lpt), ' evap: ',evap(lpt),' fluxlat: ',fluxlat(lpt) |
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| 111 | PRINT *,' fluxsens: ', fluxsens(lpt),' dflux_s: ', dflux_s(lpt),' dflux_l: ', dflux_l(lpt) |
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| 112 | END IF |
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| 113 | |
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| 114 | IF (check) WRITE(*,*)'Entree ', modname,' surface = ',nisurf |
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| 115 | |
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| 116 | IF (check) THEN |
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| 117 | WRITE(*,*)' radsol (min, max)', & |
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| 118 | MINVAL(radsol(1:knon)), MAXVAL(radsol(1:knon)) |
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| 119 | ENDIF |
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| 120 | |
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| 121 | ! Traitement neige et humidite du sol |
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| 122 | !**************************************************************************************** |
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| 123 | ! |
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| 124 | !!$ WRITE(*,*)'test calcul_flux, surface ', nisurf |
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| 125 | !!PB test |
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| 126 | !!$ if (nisurf == is_oce) then |
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| 127 | !!$ snow = 0. |
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| 128 | !!$ qsol = max_eau_sol |
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| 129 | !!$ else |
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| 130 | !!$ where (precip_snow > 0.) snow = snow + (precip_snow * dtime) |
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| 131 | !!$ where (snow > epsilon(snow)) snow = max(0.0, snow - (evap * dtime)) |
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| 132 | !!$! snow = max(0.0, snow + (precip_snow - evap) * dtime) |
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| 133 | !!$ where (precip_rain > 0.) qsol = qsol + (precip_rain - evap) * dtime |
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| 134 | !!$ endif |
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| 135 | !!$ IF (nisurf /= is_ter) qsol = max_eau_sol |
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| 136 | |
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| 137 | |
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| 138 | ! |
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| 139 | ! Initialisation |
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| 140 | !**************************************************************************************** |
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| 141 | evap = 0. |
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| 142 | fluxsens=0. |
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| 143 | fluxlat=0. |
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| 144 | dflux_s = 0. |
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| 145 | dflux_l = 0. |
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| 146 | ! |
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| 147 | ! zx_qs = qsat en kg/kg |
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| 148 | !**************************************************************************************** |
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| 149 | DO i = 1, knon |
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| 150 | zx_pkh(i) = (ps(i)/ps(i))**RKAPPA |
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| 151 | IF (thermcep) THEN |
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| 152 | zdelta=MAX(0.,SIGN(1.,rtt-tsurf(i))) |
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| 153 | zcvm5 = R5LES*RLVTT*(1.-zdelta) + R5IES*RLSTT*zdelta |
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| 154 | zcvm5 = zcvm5 / RCPD / (1.0+RVTMP2*q1lay(i)) |
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| 155 | zx_qs= r2es * FOEEW(tsurf(i),zdelta)/ps(i) |
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| 156 | zx_qs=MIN(0.5,zx_qs) |
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| 157 | zcor=1./(1.-retv*zx_qs) |
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| 158 | zx_qs=zx_qs*zcor |
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| 159 | zx_dq_s_dh = FOEDE(tsurf(i),zdelta,zcvm5,zx_qs,zcor) & |
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| 160 | /RLVTT / zx_pkh(i) |
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| 161 | ELSE |
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| 162 | IF (tsurf(i).LT.t_coup) THEN |
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| 163 | zx_qs = qsats(tsurf(i)) / ps(i) |
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| 164 | zx_dq_s_dh = dqsats(tsurf(i),zx_qs)/RLVTT & |
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| 165 | / zx_pkh(i) |
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| 166 | ELSE |
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| 167 | zx_qs = qsatl(tsurf(i)) / ps(i) |
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| 168 | zx_dq_s_dh = dqsatl(tsurf(i),zx_qs)/RLVTT & |
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| 169 | / zx_pkh(i) |
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| 170 | ENDIF |
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| 171 | ENDIF |
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| 172 | zx_dq_s_dt(i) = RCPD * zx_pkh(i) * zx_dq_s_dh |
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| 173 | zx_qsat(i) = zx_qs |
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| 174 | zx_coef(i) = coef1lay(i) * & |
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| 175 | (1.0+SQRT(u1lay(i)**2+v1lay(i)**2)) * & |
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| 176 | p1lay(i)/(RD*t1lay(i)) |
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| 177 | |
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| 178 | ENDDO |
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| 179 | |
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| 180 | |
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| 181 | ! === Calcul de la temperature de surface === |
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| 182 | ! zx_sl = chaleur latente d'evaporation ou de sublimation |
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| 183 | !**************************************************************************************** |
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| 184 | |
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| 185 | DO i = 1, knon |
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| 186 | zx_sl(i) = RLVTT |
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| 187 | IF (tsurf(i) .LT. RTT) zx_sl(i) = RLSTT |
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| 188 | zx_k1(i) = zx_coef(i) |
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| 189 | ENDDO |
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| 190 | |
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| 191 | |
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| 192 | DO i = 1, knon |
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| 193 | ! Q |
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| 194 | zx_oq(i) = 1. - (beta(i) * zx_k1(i) * peqBcoef(i) * dtime) |
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| 195 | zx_mq(i) = beta(i) * zx_k1(i) * & |
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| 196 | (peqAcoef(i) - zx_qsat(i) + & |
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| 197 | zx_dq_s_dt(i) * tsurf(i)) & |
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| 198 | / zx_oq(i) |
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| 199 | zx_nq(i) = beta(i) * zx_k1(i) * (-1. * zx_dq_s_dt(i)) & |
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| 200 | / zx_oq(i) |
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| 201 | |
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| 202 | ! H |
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| 203 | zx_oh(i) = 1. - (zx_k1(i) * petBcoef(i) * dtime) |
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| 204 | zx_mh(i) = zx_k1(i) * petAcoef(i) / zx_oh(i) |
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| 205 | zx_nh(i) = - (zx_k1(i) * RCPD * zx_pkh(i))/ zx_oh(i) |
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| 206 | |
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| 207 | ! Tsurface |
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| 208 | tsurf_new(i) = (tsurf(i) + cal(i)/(RCPD * zx_pkh(i)) * dtime * & |
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| 209 | (radsol(i) + zx_mh(i) + zx_sl(i) * zx_mq(i)) & |
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| 210 | + dif_grnd(i) * t_grnd * dtime)/ & |
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| 211 | ( 1. - dtime * cal(i)/(RCPD * zx_pkh(i)) * ( & |
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| 212 | zx_nh(i) + zx_sl(i) * zx_nq(i)) & |
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| 213 | + dtime * dif_grnd(i)) |
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| 214 | |
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| 215 | ! |
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| 216 | ! Y'a-t-il fonte de neige? |
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| 217 | ! |
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| 218 | ! fonte_neige = (nisurf /= is_oce) .AND. & |
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| 219 | ! & (snow(i) > epsfra .OR. nisurf == is_sic .OR. nisurf == is_lic) & |
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| 220 | ! & .AND. (tsurf_new(i) >= RTT) |
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| 221 | ! if (fonte_neige) tsurf_new(i) = RTT |
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| 222 | d_ts(i) = tsurf_new(i) - tsurf(i) |
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| 223 | ! zx_h_ts(i) = tsurf_new(i) * RCPD * zx_pkh(i) |
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| 224 | ! zx_q_0(i) = zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
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| 225 | |
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| 226 | !== flux_q est le flux de vapeur d'eau: kg/(m**2 s) positive vers bas |
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| 227 | !== flux_t est le flux de cpt (energie sensible): j/(m**2 s) |
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| 228 | evap(i) = - zx_mq(i) - zx_nq(i) * tsurf_new(i) |
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| 229 | fluxlat(i) = - evap(i) * zx_sl(i) |
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| 230 | fluxsens(i) = zx_mh(i) + zx_nh(i) * tsurf_new(i) |
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| 231 | |
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| 232 | ! Derives des flux dF/dTs (W m-2 K-1): |
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| 233 | dflux_s(i) = zx_nh(i) |
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| 234 | dflux_l(i) = (zx_sl(i) * zx_nq(i)) |
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| 235 | |
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| 236 | ! Nouvelle valeure de l'humidite au dessus du sol |
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| 237 | qsat_new=zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
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| 238 | q1_new = peqAcoef(i) - peqBcoef(i)*evap(i)*dtime |
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| 239 | qsurf(i)=q1_new*(1.-beta(i)) + beta(i)*qsat_new |
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| 240 | ! |
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| 241 | ! en cas de fonte de neige |
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| 242 | ! |
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| 243 | ! if (fonte_neige) then |
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| 244 | ! bilan_f = radsol(i) + fluxsens(i) - (zx_sl(i) * evap (i)) - & |
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| 245 | ! & dif_grnd(i) * (tsurf_new(i) - t_grnd) - & |
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| 246 | ! & RCPD * (zx_pkh(i))/cal(i)/dtime * (tsurf_new(i) - tsurf(i)) |
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| 247 | ! bilan_f = max(0., bilan_f) |
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| 248 | ! fq_fonte = bilan_f / zx_sl(i) |
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| 249 | ! snow(i) = max(0., snow(i) - fq_fonte * dtime) |
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| 250 | ! qsol(i) = qsol(i) + (fq_fonte * dtime) |
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| 251 | ! endif |
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| 252 | !!$ if (nisurf == is_ter) & |
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| 253 | !!$ & run_off(i) = run_off(i) + max(qsol(i) - max_eau_sol, 0.0) |
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| 254 | !!$ qsol(i) = min(qsol(i), max_eau_sol) |
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| 255 | ENDDO |
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| 256 | ! |
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| 257 | !**************************************************************************************** |
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| 258 | ! |
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| 259 | END SUBROUTINE calcul_fluxs |
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| 260 | ! |
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| 261 | !**************************************************************************************** |
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| 262 | ! |
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| 263 | SUBROUTINE calcul_flux_wind(knon, dtime, & |
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| 264 | u0, v0, u1, v1, cdrag_m, & |
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| 265 | AcoefU, AcoefV, BcoefU, BcoefV, & |
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| 266 | p1lay, t1lay, & |
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| 267 | flux_u1, flux_v1) |
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| 268 | |
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| 269 | USE dimphy |
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| 270 | INCLUDE "YOMCST.h" |
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| 271 | |
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| 272 | ! Input arguments |
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| 273 | !**************************************************************************************** |
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| 274 | INTEGER, INTENT(IN) :: knon |
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| 275 | REAL, INTENT(IN) :: dtime |
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| 276 | REAL, DIMENSION(klon), INTENT(IN) :: u0, v0 ! u and v at niveau 0 |
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| 277 | REAL, DIMENSION(klon), INTENT(IN) :: u1, v1 ! u and v at niveau 1 |
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| 278 | REAL, DIMENSION(klon), INTENT(IN) :: cdrag_m ! cdrag pour momentum |
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| 279 | REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV |
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| 280 | REAL, DIMENSION(klon), INTENT(IN) :: p1lay ! pression 1er niveau (milieu de couche) |
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| 281 | REAL, DIMENSION(klon), INTENT(IN) :: t1lay ! temperature |
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| 282 | ! Output arguments |
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| 283 | !**************************************************************************************** |
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| 284 | REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1 |
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| 285 | REAL, DIMENSION(klon), INTENT(OUT) :: flux_v1 |
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| 286 | |
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| 287 | ! Local variables |
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| 288 | !**************************************************************************************** |
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| 289 | INTEGER :: i |
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| 290 | REAL :: mod_wind, buf |
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| 291 | |
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| 292 | !**************************************************************************************** |
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| 293 | ! Calculate the surface flux |
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| 294 | ! |
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| 295 | !**************************************************************************************** |
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| 296 | DO i=1,knon |
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| 297 | mod_wind = 1.0 + SQRT((u1(i) - u0(i))**2 + (v1(i)-v0(i))**2) |
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| 298 | buf = cdrag_m(i) * mod_wind * p1lay(i)/(RD*t1lay(i)) |
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| 299 | flux_u1(i) = (AcoefU(i) - u0(i)) / (1/buf - BcoefU(i)*dtime ) |
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| 300 | flux_v1(i) = (AcoefV(i) - v0(i)) / (1/buf - BcoefV(i)*dtime ) |
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| 301 | END DO |
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| 302 | |
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| 303 | END SUBROUTINE calcul_flux_wind |
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| 304 | ! |
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| 305 | !**************************************************************************************** |
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| 306 | ! |
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| 307 | END MODULE calcul_fluxs_mod |
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