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module interfsurf_hq_m |
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|
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implicit none |
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|
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contains |
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|
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SUBROUTINE interfsurf_hq(dtime, julien, rmu0, nisurf, knindex, debut, & |
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tsoil, qsol, u1_lay, v1_lay, temp_air, spechum, tq_cdrag, petAcoef, & |
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peqAcoef, petBcoef, peqBcoef, precip_rain, precip_snow, rugos, rugoro, & |
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snow, qsurf, ts, p1lay, ps, radsol, evap, flux_t, fluxlat, dflux_l, & |
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dflux_s, tsurf_new, albedo, z0_new, pctsrf_new_sic, agesno, fqcalving, & |
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ffonte, run_off_lic_0) |
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|
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! Cette routine sert d'aiguillage entre l'atmosph\`ere et la surface |
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! en g\'en\'eral (sols continentaux, oc\'eans, glaces) pour les flux de |
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! chaleur et d'humidit\'e. |
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|
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! Laurent Fairhead, February 2000 |
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|
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USE abort_gcm_m, ONLY: abort_gcm |
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use alboc_cd_m, only: alboc_cd |
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USE albsno_m, ONLY: albsno |
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USE calcul_fluxs_m, ONLY: calcul_fluxs |
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USE dimphy, ONLY: klon |
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USE fonte_neige_m, ONLY: fonte_neige |
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USE indicesol, ONLY: epsfra, is_lic, is_oce, is_sic, is_ter |
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USE interface_surf, ONLY: conf_interface |
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USE interfsur_lim_m, ONLY: interfsur_lim |
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use read_sst_m, only: read_sst |
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use soil_m, only: soil |
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USE suphec_m, ONLY: rcpd, rtt |
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|
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real, intent(IN):: dtime ! pas de temps de la physique (en s) |
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integer, intent(IN):: julien ! jour dans l'annee en cours |
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real, intent(IN):: rmu0(klon) ! cosinus de l'angle solaire zenithal |
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integer, intent(IN):: nisurf ! index de la surface a traiter |
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|
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integer, intent(in):: knindex(:) ! (knon) |
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! index des points de la surface a traiter |
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|
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logical, intent(IN):: debut ! 1er appel a la physique |
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! (si false calcul simplifie des fluxs sur les continents) |
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|
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REAL, intent(inout):: tsoil(:, :) ! (knon, nsoilmx) |
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|
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REAL, intent(INOUT):: qsol(:) ! (knon) |
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! column-density of water in soil, in kg m-2 |
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|
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real, intent(IN):: u1_lay(:), v1_lay(:) ! (knon) vitesse 1ere couche |
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|
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real, dimension(klon), intent(IN):: temp_air, spechum |
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! temp_air temperature de l'air 1ere couche |
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! spechum humidite specifique 1ere couche |
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real, intent(IN):: tq_cdrag(:) ! (knon) coefficient d'echange |
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|
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real, dimension(klon), intent(IN):: petAcoef, peqAcoef |
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! coefficients A de la r\'esolution de la couche limite pour t et q |
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|
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real, dimension(klon), intent(IN):: petBcoef, peqBcoef |
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! coefficients B de la r\'esolution de la couche limite pour t et q |
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|
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real, intent(IN):: precip_rain(klon) |
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! precipitation, liquid water mass flux (kg / m2 / s), positive down |
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|
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real, intent(IN):: precip_snow(klon) |
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! precipitation, solid water mass flux (kg / m2 / s), positive down |
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|
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real, intent(IN):: rugos(klon) ! rugosite |
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real, intent(IN):: rugoro(klon) ! rugosite orographique |
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real, intent(INOUT):: snow(:) ! (knon) |
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real, intent(INOUT):: qsurf(klon) |
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real, intent(IN):: ts(:) ! (knon) temp\'erature de surface |
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real, intent(IN):: p1lay(klon) ! pression 1er niveau (milieu de couche) |
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real, dimension(klon), intent(IN):: ps ! pression au sol |
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REAL, INTENT(IN):: radsol(:) ! (knon) rayonnement net au sol (LW + SW) |
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real, intent(OUT):: evap(:) ! (knon) evaporation totale |
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|
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real, intent(OUT):: flux_t(:) ! (knon) flux de chaleur sensible |
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! (Cp T) à la surface, positif vers le bas, W / m2 |
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|
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real, intent(OUT):: fluxlat(:) ! (knon) flux de chaleur latente |
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real, intent(OUT):: dflux_l(:), dflux_s(:) ! (knon) |
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real, intent(OUT):: tsurf_new(:) ! (knon) temp\'erature au sol |
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real, intent(OUT):: albedo(:) ! (knon) albedo |
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real, intent(OUT):: z0_new(klon) ! surface roughness |
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|
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real, intent(in):: pctsrf_new_sic(:) ! (klon) |
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! nouvelle repartition des surfaces |
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|
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real, intent(INOUT):: agesno(:) ! (knon) |
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|
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! Flux d'eau "perdue" par la surface et n\'ecessaire pour limiter la |
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! hauteur de neige, en kg / m2 / s |
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real, dimension(klon), intent(INOUT):: fqcalving |
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|
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! Flux thermique utiliser pour fondre la neige |
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real, dimension(klon), intent(INOUT):: ffonte |
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|
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real, dimension(klon), intent(INOUT):: run_off_lic_0 |
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! run_off_lic_0 runoff glacier du pas de temps precedent |
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|
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! Local: |
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integer knon ! nombre de points de la surface a traiter |
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REAL soilcap(size(knindex)) ! (knon) |
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REAL soilflux(size(knindex)) ! (knon) |
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logical:: first_call = .true. |
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integer ii |
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real cal(size(knindex)) ! (knon) |
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real beta(size(knindex)) ! (knon) evap reelle |
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real dif_grnd(klon) |
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real tsurf(size(knindex)) ! (knon) |
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real alb_neig(size(knindex)) ! (knon) |
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real zfra(size(knindex)) ! (knon) |
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REAL, PARAMETER:: fmagic = 1. ! facteur magique pour r\'egler l'alb\'edo |
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REAL, PARAMETER:: max_eau_sol = 150. ! in kg m-2 |
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REAL, PARAMETER:: tau_gl = 86400. * 5. |
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|
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!------------------------------------------------------------- |
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|
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knon = size(knindex) |
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|
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! On doit commencer par appeler les schemas de surfaces continentales |
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! car l'ocean a besoin du ruissellement qui est y calcule |
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|
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if (first_call) then |
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call conf_interface |
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|
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if (nisurf /= is_ter .and. klon > 1) then |
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print *, ' nisurf = ', nisurf, ' /= is_ter = ', is_ter |
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print *, 'or on doit commencer par les surfaces continentales' |
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call abort_gcm("interfsurf_hq", & |
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'On doit commencer par les surfaces continentales') |
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endif |
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|
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if (is_oce > is_sic) then |
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print *, 'is_oce = ', is_oce, '> is_sic = ', is_sic |
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call abort_gcm("interfsurf_hq", & |
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"L'ocean doit etre traite avant la banquise") |
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endif |
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|
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first_call = .false. |
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endif |
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|
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! Initialisations diverses |
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|
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ffonte(1:knon) = 0. |
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fqcalving(1:knon) = 0. |
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dif_grnd = 999999. |
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z0_new = 999999. |
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|
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! Aiguillage vers les differents schemas de surface |
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|
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select case (nisurf) |
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case (is_ter) |
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! Surface "terre", appel \`a l'interface avec les sols continentaux |
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|
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! Calcul age de la neige |
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|
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! Read albedo from the file containing boundary conditions then |
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! add the albedo of snow: |
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|
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call interfsur_lim(dtime, julien, knindex, debut, albedo, z0_new) |
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|
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beta = min(2. * qsol / max_eau_sol, 1.) |
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dif_grnd(:knon) = 0. |
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CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux) |
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cal = RCPD / soilcap |
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|
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CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, & |
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ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), & |
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temp_air(:knon), spechum(:knon), u1_lay, v1_lay, & |
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petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), & |
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peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l) |
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CALL fonte_neige(is_ter, dtime, precip_rain(:knon), & |
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precip_snow(:knon), snow, qsol, tsurf_new, evap, & |
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fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon)) |
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|
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call albsno(dtime, agesno, alb_neig, precip_snow(:knon)) |
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where (snow < 0.0001) agesno = 0. |
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zfra = max(0., min(1., snow / (snow + 10.))) |
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albedo = alb_neig * zfra + albedo * (1. - zfra) |
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z0_new = sqrt(z0_new**2 + rugoro**2) |
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case (is_oce) |
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! Surface "oc\'ean", appel \`a l'interface avec l'oc\'ean |
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|
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call read_sst(julien, knindex, tsurf) |
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cal = 0. |
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beta = 1. |
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dif_grnd = 0. |
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call calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, & |
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tq_cdrag, ps(:knon), qsurf(:knon), radsol, & |
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dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, & |
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v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), & |
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peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l) |
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agesno = 0. |
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albedo = alboc_cd(rmu0(knindex)) * fmagic |
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z0_new = sqrt(rugos**2 + rugoro**2) |
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case (is_sic) |
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! Surface "glace de mer" appel a l'interface avec l'ocean |
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|
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DO ii = 1, knon |
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IF (pctsrf_new_sic(knindex(ii)) < EPSFRA) then |
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snow(ii) = 0. |
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tsurf_new(ii) = RTT - 1.8 |
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tsoil(ii, :) = RTT - 1.8 |
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else |
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tsurf_new(ii) = ts(ii) |
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endif |
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enddo |
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|
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CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, soilflux) |
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cal = RCPD / soilcap |
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dif_grnd = 1. / tau_gl |
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tsurf = tsurf_new |
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beta = 1. |
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|
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CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, & |
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tq_cdrag, ps(:knon), qsurf(:knon), radsol + soilflux, & |
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dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, & |
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v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), & |
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peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l) |
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CALL fonte_neige(is_sic, dtime, precip_rain(:knon), & |
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precip_snow(:knon), snow, qsol, tsurf_new, evap, & |
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fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon)) |
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|
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! Compute the albedo: |
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|
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CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon)) |
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WHERE (snow < 0.0001) agesno = 0. |
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zfra = MAX(0., MIN(1., snow / (snow + 10.))) |
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albedo = alb_neig * zfra + 0.6 * (1. - zfra) |
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|
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z0_new = SQRT(0.002**2 + rugoro**2) |
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case (is_lic) |
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! Surface "glacier continentaux" appel a l'interface avec le sol |
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|
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CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux) |
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cal = RCPD / soilcap |
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beta = 1. |
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dif_grnd = 0. |
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|
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call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, & |
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ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), & |
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temp_air(:knon), spechum(:knon), u1_lay, v1_lay, & |
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petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), & |
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peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l) |
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call fonte_neige(is_lic, dtime, precip_rain(:knon), & |
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precip_snow(:knon), snow, qsol, tsurf_new, evap, & |
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fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon)) |
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|
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! calcul albedo |
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CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon)) |
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WHERE (snow < 0.0001) agesno = 0. |
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albedo = 0.77 |
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|
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! Rugosite |
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z0_new = rugoro |
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case default |
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print *, 'Index surface = ', nisurf |
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call abort_gcm("interfsurf_hq", 'Index surface non valable') |
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end select |
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|
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END SUBROUTINE interfsurf_hq |
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|
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end module interfsurf_hq_m |
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