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MODULE interface_surf |
2 |
|
3 |
! From phylmd/interface_surf.F90, version 1.8 2005/05/25 13:10:09 |
4 |
|
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! Ce module regroupe toutes les routines gérant l'interface entre le modèle |
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! atmosphérique et les modèles de surface (sols continentaux, |
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! océans, glaces). |
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! Les routines sont les suivantes: |
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! interfsurf_hq : routine d'aiguillage vers les interfaces avec les |
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! différents modèles de surface |
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! interfoce_* : routines d'interface proprement dites |
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|
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! L. Fairhead, LMD, 02/2000 |
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|
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IMPLICIT none |
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|
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PRIVATE |
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PUBLIC :: interfsurf_hq |
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|
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! run_off ruissellement total |
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REAL, ALLOCATABLE, DIMENSION(:), SAVE :: run_off, run_off_lic |
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real, allocatable, dimension(:), save :: coastalflow, riverflow |
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|
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REAL, ALLOCATABLE, DIMENSION(:, :), SAVE :: tmp_rriv, tmp_rcoa, tmp_rlic |
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!! pour simuler la fonte des glaciers antarctiques |
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REAL, ALLOCATABLE, DIMENSION(:, :), SAVE :: coeff_iceberg |
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real, save :: surf_maille |
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real, save :: cte_flux_iceberg = 6.3e7 |
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integer, save :: num_antarctic = 1 |
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REAL, save :: tau_calv |
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|
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CONTAINS |
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|
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SUBROUTINE interfsurf_hq(itime, dtime, date0, jour, rmu0, & |
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& klon, iim, jjm, nisurf, knon, knindex, pctsrf, & |
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& rlon, rlat, cufi, cvfi, & |
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& debut, lafin, ok_veget, soil_model, nsoilmx, tsoil, qsol, & |
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& zlev, u1_lay, v1_lay, temp_air, spechum, epot_air, ccanopy, & |
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& tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, & |
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& precip_rain, precip_snow, sollw, sollwdown, swnet, swdown, & |
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& fder, taux, tauy, & |
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& windsp, & |
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& rugos, rugoro, & |
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& albedo, snow, qsurf, & |
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& tsurf, p1lay, ps, radsol, & |
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& ocean, npas, nexca, zmasq, & |
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& evap, fluxsens, fluxlat, dflux_l, dflux_s, & |
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& tsol_rad, tsurf_new, alb_new, alblw, emis_new, & |
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& z0_new, pctsrf_new, agesno, fqcalving, ffonte, run_off_lic_0, & |
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!IM "slab" ocean |
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& flux_o, flux_g, tslab, seaice) |
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|
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! Cette routine sert d'aiguillage entre l'atmosphère et la surface |
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! en général (sols continentaux, océans, glaces) pour les flux de |
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! chaleur et d'humidité. |
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! En pratique l'interface se fait entre la couche limite du modèle |
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! atmosphérique ("clmain.F") et les routines de surface |
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! ("sechiba", "oasis"...). |
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|
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! L.Fairhead 02/2000 |
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|
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use abort_gcm_m, only: abort_gcm |
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use gath_cpl, only: gath2cpl |
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use indicesol |
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use YOMCST |
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use albsno_m, only: albsno |
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|
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! Parametres d'entree |
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! input: |
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! klon nombre total de points de grille |
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! iim, jjm nbres de pts de grille |
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! dtime pas de temps de la physique (en s) |
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! date0 jour initial |
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! jour jour dans l'annee en cours, |
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! rmu0 cosinus de l'angle solaire zenithal |
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! nexca pas de temps couplage |
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! nisurf index de la surface a traiter (1 = sol continental) |
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! knon nombre de points de la surface a traiter |
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! knindex index des points de la surface a traiter |
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! pctsrf tableau des pourcentages de surface de chaque maille |
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! rlon longitudes |
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! rlat latitudes |
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! cufi, cvfi resolution des mailles en x et y (m) |
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! debut logical: 1er appel a la physique |
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! lafin logical: dernier appel a la physique |
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! ok_veget logical: appel ou non au schema de surface continental |
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! (si false calcul simplifie des fluxs sur les continents) |
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! zlev hauteur de la premiere couche |
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! u1_lay vitesse u 1ere couche |
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! v1_lay vitesse v 1ere couche |
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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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! epot_air temp potentielle de l'air |
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! ccanopy concentration CO2 canopee |
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! tq_cdrag cdrag |
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! petAcoef coeff. A de la resolution de la CL pour t |
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! peqAcoef coeff. A de la resolution de la CL pour q |
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! petBcoef coeff. B de la resolution de la CL pour t |
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! peqBcoef coeff. B de la resolution de la CL pour q |
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! precip_rain precipitation liquide |
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! precip_snow precipitation solide |
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! sollw flux IR net a la surface |
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! sollwdown flux IR descendant a la surface |
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! swnet flux solaire net |
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! swdown flux solaire entrant a la surface |
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! albedo albedo de la surface |
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! tsurf temperature de surface |
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! tslab temperature slab ocean |
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! pctsrf_slab pourcentages (0-1) des sous-surfaces dans le slab |
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! tmp_pctsrf_slab = pctsrf_slab |
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! p1lay pression 1er niveau (milieu de couche) |
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! ps pression au sol |
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! radsol rayonnement net aus sol (LW + SW) |
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! ocean type d'ocean utilise ("force" ou "slab" mais pas "couple") |
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! fder derivee des flux (pour le couplage) |
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! taux, tauy tension de vents |
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! windsp module du vent a 10m |
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! rugos rugosite |
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! zmasq masque terre/ocean |
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! rugoro rugosite orographique |
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! run_off_lic_0 runoff glacier du pas de temps precedent |
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integer, intent(IN) :: itime ! numero du pas de temps |
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integer, intent(IN) :: iim, jjm |
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integer, intent(IN) :: klon |
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real, intent(IN) :: dtime |
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real, intent(IN) :: date0 |
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integer, intent(IN) :: jour |
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real, intent(IN) :: rmu0(klon) |
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integer, intent(IN) :: nisurf |
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integer, intent(IN) :: knon |
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integer, dimension(klon), intent(in) :: knindex |
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real, dimension(klon, nbsrf), intent(IN) :: pctsrf |
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logical, intent(IN) :: debut, lafin, ok_veget |
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real, dimension(klon), intent(IN) :: rlon, rlat |
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real, dimension(klon), intent(IN) :: cufi, cvfi |
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real, dimension(klon), intent(INOUT) :: tq_cdrag |
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real, dimension(klon), intent(IN) :: zlev |
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real, dimension(klon), intent(IN) :: u1_lay, v1_lay |
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real, dimension(klon), intent(IN) :: temp_air, spechum |
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real, dimension(klon), intent(IN) :: epot_air, ccanopy |
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real, dimension(klon), intent(IN) :: petAcoef, peqAcoef |
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real, dimension(klon), intent(IN) :: petBcoef, peqBcoef |
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real, dimension(klon), intent(IN) :: precip_rain, precip_snow |
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real, dimension(klon), intent(IN) :: sollw, sollwdown, swnet, swdown |
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real, dimension(klon), intent(IN) :: ps, albedo |
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real, dimension(klon), intent(IN) :: tsurf, p1lay |
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!IM: "slab" ocean |
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real, dimension(klon), intent(INOUT) :: tslab |
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real, allocatable, dimension(:), save :: tmp_tslab |
150 |
real, dimension(klon), intent(OUT) :: flux_o, flux_g |
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real, dimension(klon), intent(INOUT) :: seaice ! glace de mer (kg/m2) |
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REAL, DIMENSION(klon), INTENT(INOUT) :: radsol, fder |
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real, dimension(klon), intent(IN) :: zmasq |
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real, dimension(klon), intent(IN) :: taux, tauy, rugos, rugoro |
155 |
real, dimension(klon), intent(IN) :: windsp |
156 |
character(len=*), intent(IN):: ocean |
157 |
integer :: npas, nexca ! nombre et pas de temps couplage |
158 |
real, dimension(klon), intent(INOUT) :: evap, snow, qsurf |
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!! PB ajout pour soil |
160 |
logical, intent(in):: soil_model |
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integer :: nsoilmx |
162 |
REAL, DIMENSION(klon, nsoilmx) :: tsoil |
163 |
REAL, dimension(klon), intent(INOUT) :: qsol |
164 |
REAL, dimension(klon) :: soilcap |
165 |
REAL, dimension(klon) :: soilflux |
166 |
|
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! Parametres de sortie |
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! output: |
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! evap evaporation totale |
170 |
! fluxsens flux de chaleur sensible |
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! fluxlat flux de chaleur latente |
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! tsol_rad |
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! tsurf_new temperature au sol |
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! alb_new albedo |
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! emis_new emissivite |
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! z0_new surface roughness |
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! pctsrf_new nouvelle repartition des surfaces |
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real, dimension(klon), intent(OUT):: fluxsens, fluxlat |
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real, dimension(klon), intent(OUT):: tsol_rad, tsurf_new, alb_new |
180 |
real, dimension(klon), intent(OUT):: alblw |
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real, dimension(klon), intent(OUT):: emis_new, z0_new |
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real, dimension(klon), intent(OUT):: dflux_l, dflux_s |
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real, dimension(klon, nbsrf), intent(OUT) :: pctsrf_new |
184 |
real, dimension(klon), intent(INOUT):: agesno |
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real, dimension(klon), intent(INOUT):: run_off_lic_0 |
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|
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! Flux thermique utiliser pour fondre la neige |
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!jld a rajouter real, dimension(klon), intent(INOUT):: ffonte |
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real, dimension(klon), intent(INOUT):: ffonte |
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! Flux d'eau "perdue" par la surface et nécessaire pour que limiter la |
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! hauteur de neige, en kg/m2/s |
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!jld a rajouter real, dimension(klon), intent(INOUT):: fqcalving |
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real, dimension(klon), intent(INOUT):: fqcalving |
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!IM: "slab" ocean - Local |
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real, parameter :: t_grnd=271.35 |
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real, dimension(klon) :: zx_sl |
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integer i |
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real, allocatable, dimension(:), save :: tmp_flux_o, tmp_flux_g |
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real, allocatable, dimension(:), save :: tmp_radsol |
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real, allocatable, dimension(:, :), save :: tmp_pctsrf_slab |
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real, allocatable, dimension(:), save :: tmp_seaice |
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|
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! Local |
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character (len = 20), save :: modname = 'interfsurf_hq' |
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character (len = 80) :: abort_message |
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logical, save :: first_call = .true. |
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integer, save :: error |
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integer :: ii |
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logical, save :: check = .false. |
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real, dimension(klon):: cal, beta, dif_grnd, capsol |
211 |
real, parameter :: calice=1.0/(5.1444e+06*0.15), tau_gl=86400.*5. |
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real, parameter :: calsno=1./(2.3867e+06*.15) |
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real, dimension(klon):: tsurf_temp |
214 |
real, dimension(klon):: alb_neig, alb_eau |
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real, DIMENSION(klon):: zfra |
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logical :: cumul = .false. |
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INTEGER, dimension(1) :: iloc |
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real, dimension(klon):: fder_prev |
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REAL, dimension(klon) :: bidule |
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|
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!------------------------------------------------------------- |
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|
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if (check) write(*, *) 'Entree ', modname |
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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(tau_calv) |
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if (nisurf /= is_ter .and. klon > 1) then |
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write(*, *)' *** Warning ***' |
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write(*, *)' nisurf = ', nisurf, ' /= is_ter = ', is_ter |
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write(*, *)'or on doit commencer par les surfaces continentales' |
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abort_message='voir ci-dessus' |
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call abort_gcm(modname, abort_message, 1) |
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endif |
237 |
if (ocean /= 'slab' .and. ocean /= 'force') then |
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write(*, *)' *** Warning ***' |
239 |
write(*, *)'Option couplage pour l''ocean = ', ocean |
240 |
abort_message='option pour l''ocean non valable' |
241 |
call abort_gcm(modname, abort_message, 1) |
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endif |
243 |
if ( is_oce > is_sic ) then |
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write(*, *)' *** Warning ***' |
245 |
write(*, *)' Pour des raisons de sequencement dans le code' |
246 |
write(*, *)' l''ocean doit etre traite avant la banquise' |
247 |
write(*, *)' or is_oce = ', is_oce, '> is_sic = ', is_sic |
248 |
abort_message='voir ci-dessus' |
249 |
call abort_gcm(modname, abort_message, 1) |
250 |
endif |
251 |
endif |
252 |
first_call = .false. |
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|
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! Initialisations diverses |
255 |
|
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ffonte(1:knon)=0. |
257 |
fqcalving(1:knon)=0. |
258 |
|
259 |
cal = 999999. ; beta = 999999. ; dif_grnd = 999999. ; capsol = 999999. |
260 |
alb_new = 999999. ; z0_new = 999999. ; alb_neig = 999999. |
261 |
tsurf_new = 999999. |
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alblw = 999999. |
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|
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!IM: "slab" ocean; initialisations |
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flux_o = 0. |
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flux_g = 0. |
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|
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if (.not. allocated(tmp_flux_o)) then |
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allocate(tmp_flux_o(klon), stat = error) |
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DO i=1, knon |
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tmp_flux_o(knindex(i))=flux_o(i) |
272 |
ENDDO |
273 |
if (error /= 0) then |
274 |
abort_message='Pb allocation tmp_flux_o' |
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call abort_gcm(modname, abort_message, 1) |
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endif |
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endif |
278 |
if (.not. allocated(tmp_flux_g)) then |
279 |
allocate(tmp_flux_g(klon), stat = error) |
280 |
DO i=1, knon |
281 |
tmp_flux_g(knindex(i))=flux_g(i) |
282 |
ENDDO |
283 |
if (error /= 0) then |
284 |
abort_message='Pb allocation tmp_flux_g' |
285 |
call abort_gcm(modname, abort_message, 1) |
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endif |
287 |
endif |
288 |
if (.not. allocated(tmp_radsol)) then |
289 |
allocate(tmp_radsol(klon), stat = error) |
290 |
if (error /= 0) then |
291 |
abort_message='Pb allocation tmp_radsol' |
292 |
call abort_gcm(modname, abort_message, 1) |
293 |
endif |
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endif |
295 |
DO i=1, knon |
296 |
tmp_radsol(knindex(i))=radsol(i) |
297 |
ENDDO |
298 |
if (.not. allocated(tmp_pctsrf_slab)) then |
299 |
allocate(tmp_pctsrf_slab(klon, nbsrf), stat = error) |
300 |
if (error /= 0) then |
301 |
abort_message='Pb allocation tmp_pctsrf_slab' |
302 |
call abort_gcm(modname, abort_message, 1) |
303 |
endif |
304 |
DO i=1, klon |
305 |
tmp_pctsrf_slab(i, 1:nbsrf)=pctsrf(i, 1:nbsrf) |
306 |
ENDDO |
307 |
endif |
308 |
|
309 |
if (.not. allocated(tmp_seaice)) then |
310 |
allocate(tmp_seaice(klon), stat = error) |
311 |
if (error /= 0) then |
312 |
abort_message='Pb allocation tmp_seaice' |
313 |
call abort_gcm(modname, abort_message, 1) |
314 |
endif |
315 |
DO i=1, klon |
316 |
tmp_seaice(i)=seaice(i) |
317 |
ENDDO |
318 |
endif |
319 |
|
320 |
if (.not. allocated(tmp_tslab)) then |
321 |
allocate(tmp_tslab(klon), stat = error) |
322 |
if (error /= 0) then |
323 |
abort_message='Pb allocation tmp_tslab' |
324 |
call abort_gcm(modname, abort_message, 1) |
325 |
endif |
326 |
endif |
327 |
DO i=1, klon |
328 |
tmp_tslab(i)=tslab(i) |
329 |
ENDDO |
330 |
|
331 |
! Aiguillage vers les differents schemas de surface |
332 |
|
333 |
if (nisurf == is_ter) then |
334 |
|
335 |
! Surface "terre" appel a l'interface avec les sols continentaux |
336 |
|
337 |
! allocation du run-off |
338 |
if (.not. allocated(coastalflow)) then |
339 |
allocate(coastalflow(knon), stat = error) |
340 |
if (error /= 0) then |
341 |
abort_message='Pb allocation coastalflow' |
342 |
call abort_gcm(modname, abort_message, 1) |
343 |
endif |
344 |
allocate(riverflow(knon), stat = error) |
345 |
if (error /= 0) then |
346 |
abort_message='Pb allocation riverflow' |
347 |
call abort_gcm(modname, abort_message, 1) |
348 |
endif |
349 |
allocate(run_off(knon), stat = error) |
350 |
if (error /= 0) then |
351 |
abort_message='Pb allocation run_off' |
352 |
call abort_gcm(modname, abort_message, 1) |
353 |
endif |
354 |
!cym |
355 |
run_off=0.0 |
356 |
!cym |
357 |
|
358 |
!!$PB |
359 |
ALLOCATE (tmp_rriv(iim, jjm+1), stat=error) |
360 |
if (error /= 0) then |
361 |
abort_message='Pb allocation tmp_rriv' |
362 |
call abort_gcm(modname, abort_message, 1) |
363 |
endif |
364 |
ALLOCATE (tmp_rcoa(iim, jjm+1), stat=error) |
365 |
if (error /= 0) then |
366 |
abort_message='Pb allocation tmp_rcoa' |
367 |
call abort_gcm(modname, abort_message, 1) |
368 |
endif |
369 |
ALLOCATE (tmp_rlic(iim, jjm+1), stat=error) |
370 |
if (error /= 0) then |
371 |
abort_message='Pb allocation tmp_rlic' |
372 |
call abort_gcm(modname, abort_message, 1) |
373 |
endif |
374 |
tmp_rriv = 0.0 |
375 |
tmp_rcoa = 0.0 |
376 |
tmp_rlic = 0.0 |
377 |
|
378 |
!!$ |
379 |
else if (size(coastalflow) /= knon) then |
380 |
write(*, *)'Bizarre, le nombre de points continentaux' |
381 |
write(*, *)'a change entre deux appels. J''arrete ...' |
382 |
abort_message='voir ci-dessus' |
383 |
call abort_gcm(modname, abort_message, 1) |
384 |
endif |
385 |
coastalflow = 0. |
386 |
riverflow = 0. |
387 |
|
388 |
! Calcul age de la neige |
389 |
|
390 |
if (.not. ok_veget) then |
391 |
! calcul albedo: lecture albedo fichier boundary conditions |
392 |
! puis ajout albedo neige |
393 |
call interfsur_lim(itime, dtime, jour, klon, nisurf, knon, knindex, & |
394 |
debut, alb_new, z0_new) |
395 |
|
396 |
! calcul snow et qsurf, hydrol adapté |
397 |
CALL calbeta(dtime, nisurf, knon, snow, qsol, beta, capsol, dif_grnd) |
398 |
|
399 |
IF (soil_model) THEN |
400 |
CALL soil(dtime, nisurf, knon, snow, tsurf, tsoil, soilcap, & |
401 |
soilflux) |
402 |
cal(1:knon) = RCPD / soilcap(1:knon) |
403 |
radsol(1:knon) = radsol(1:knon) + soilflux(1:knon) |
404 |
ELSE |
405 |
cal = RCPD * capsol |
406 |
ENDIF |
407 |
CALL calcul_fluxs( klon, knon, nisurf, dtime, & |
408 |
& tsurf, p1lay, cal, beta, tq_cdrag, ps, & |
409 |
& precip_rain, precip_snow, snow, qsurf, & |
410 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
411 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
412 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
413 |
|
414 |
CALL fonte_neige( klon, knon, nisurf, dtime, & |
415 |
& tsurf, p1lay, cal, beta, tq_cdrag, ps, & |
416 |
& precip_rain, precip_snow, snow, qsol, & |
417 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
418 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
419 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l, & |
420 |
& fqcalving, ffonte, run_off_lic_0) |
421 |
|
422 |
call albsno(klon, knon, dtime, agesno, alb_neig, precip_snow) |
423 |
where (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0. |
424 |
zfra(1:knon) = max(0.0, min(1.0, snow(1:knon)/(snow(1:knon)+10.0))) |
425 |
alb_new(1 : knon) = alb_neig(1 : knon) *zfra(1:knon) + & |
426 |
alb_new(1 : knon)*(1.0-zfra(1:knon)) |
427 |
z0_new = sqrt(z0_new**2+rugoro**2) |
428 |
alblw(1 : knon) = alb_new(1 : knon) |
429 |
endif |
430 |
|
431 |
! Remplissage des pourcentages de surface |
432 |
pctsrf_new(:, nisurf) = pctsrf(:, nisurf) |
433 |
else if (nisurf == is_oce) then |
434 |
! Surface "ocean" appel a l'interface avec l'ocean |
435 |
if (ocean == 'slab') then |
436 |
tsurf_new = tsurf |
437 |
pctsrf_new = tmp_pctsrf_slab |
438 |
else |
439 |
! lecture conditions limites |
440 |
call interfoce_lim(itime, dtime, jour, klon, nisurf, knon, knindex, & |
441 |
debut, tsurf_new, pctsrf_new) |
442 |
endif |
443 |
|
444 |
tsurf_temp = tsurf_new |
445 |
cal = 0. |
446 |
beta = 1. |
447 |
dif_grnd = 0. |
448 |
alb_neig = 0. |
449 |
agesno = 0. |
450 |
|
451 |
call calcul_fluxs( klon, knon, nisurf, dtime, & |
452 |
& tsurf_temp, p1lay, cal, beta, tq_cdrag, ps, & |
453 |
& precip_rain, precip_snow, snow, qsurf, & |
454 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
455 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
456 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
457 |
|
458 |
fder_prev = fder |
459 |
fder = fder_prev + dflux_s + dflux_l |
460 |
|
461 |
iloc = maxloc(fder(1:klon)) |
462 |
if (check.and.fder(iloc(1))> 0.) then |
463 |
WRITE(*, *)'**** Debug fder****' |
464 |
WRITE(*, *)'max fder(', iloc(1), ') = ', fder(iloc(1)) |
465 |
WRITE(*, *)'fder_prev, dflux_s, dflux_l', fder_prev(iloc(1)), & |
466 |
& dflux_s(iloc(1)), dflux_l(iloc(1)) |
467 |
endif |
468 |
|
469 |
!IM: flux ocean-atmosphere utile pour le "slab" ocean |
470 |
DO i=1, knon |
471 |
zx_sl(i) = RLVTT |
472 |
if (tsurf_new(i) .LT. RTT) zx_sl(i) = RLSTT |
473 |
flux_o(i) = fluxsens(i)-evap(i)*zx_sl(i) |
474 |
tmp_flux_o(knindex(i)) = flux_o(i) |
475 |
tmp_radsol(knindex(i))=radsol(i) |
476 |
ENDDO |
477 |
|
478 |
! 2eme appel a interfoce pour le cumul des champs (en particulier |
479 |
! fluxsens et fluxlat calcules dans calcul_fluxs) |
480 |
|
481 |
if (ocean == 'slab ') then |
482 |
seaice=tmp_seaice |
483 |
cumul = .true. |
484 |
call interfoce_slab(klon, debut, itime, dtime, jour, & |
485 |
& tmp_radsol, tmp_flux_o, tmp_flux_g, pctsrf, & |
486 |
& tslab, seaice, pctsrf_new) |
487 |
|
488 |
tmp_pctsrf_slab=pctsrf_new |
489 |
DO i=1, knon |
490 |
tsurf_new(i)=tslab(knindex(i)) |
491 |
ENDDO |
492 |
endif |
493 |
|
494 |
! calcul albedo |
495 |
if ( minval(rmu0) == maxval(rmu0) .and. minval(rmu0) == -999.999 ) then |
496 |
CALL alboc(FLOAT(jour), rlat, alb_eau) |
497 |
else ! cycle diurne |
498 |
CALL alboc_cd(rmu0, alb_eau) |
499 |
endif |
500 |
DO ii =1, knon |
501 |
alb_new(ii) = alb_eau(knindex(ii)) |
502 |
enddo |
503 |
|
504 |
z0_new = sqrt(rugos**2 + rugoro**2) |
505 |
alblw(1:knon) = alb_new(1:knon) |
506 |
else if (nisurf == is_sic) then |
507 |
if (check) write(*, *)'sea ice, nisurf = ', nisurf |
508 |
|
509 |
! Surface "glace de mer" appel a l'interface avec l'ocean |
510 |
|
511 |
|
512 |
if (ocean == 'slab ') then |
513 |
pctsrf_new=tmp_pctsrf_slab |
514 |
|
515 |
DO ii = 1, knon |
516 |
tsurf_new(ii) = tsurf(ii) |
517 |
IF (pctsrf_new(knindex(ii), nisurf) < EPSFRA) then |
518 |
snow(ii) = 0.0 |
519 |
tsurf_new(ii) = RTT - 1.8 |
520 |
IF (soil_model) tsoil(ii, :) = RTT -1.8 |
521 |
ENDIF |
522 |
ENDDO |
523 |
|
524 |
CALL calbeta(dtime, nisurf, knon, snow, qsol, beta, capsol, dif_grnd) |
525 |
|
526 |
IF (soil_model) THEN |
527 |
CALL soil(dtime, nisurf, knon, snow, tsurf_new, tsoil, soilcap, soilflux) |
528 |
cal(1:knon) = RCPD / soilcap(1:knon) |
529 |
radsol(1:knon) = radsol(1:knon) + soilflux(1:knon) |
530 |
ELSE |
531 |
dif_grnd = 1.0 / tau_gl |
532 |
cal = RCPD * calice |
533 |
WHERE (snow > 0.0) cal = RCPD * calsno |
534 |
ENDIF |
535 |
tsurf_temp = tsurf_new |
536 |
beta = 1.0 |
537 |
|
538 |
ELSE |
539 |
! ! lecture conditions limites |
540 |
CALL interfoce_lim(itime, dtime, jour, & |
541 |
& klon, nisurf, knon, knindex, & |
542 |
& debut, & |
543 |
& tsurf_new, pctsrf_new) |
544 |
|
545 |
!IM cf LF |
546 |
DO ii = 1, knon |
547 |
tsurf_new(ii) = tsurf(ii) |
548 |
!IMbad IF (pctsrf_new(ii, nisurf) < EPSFRA) then |
549 |
IF (pctsrf_new(knindex(ii), nisurf) < EPSFRA) then |
550 |
snow(ii) = 0.0 |
551 |
!IM cf LF/JLD tsurf(ii) = RTT - 1.8 |
552 |
tsurf_new(ii) = RTT - 1.8 |
553 |
IF (soil_model) tsoil(ii, :) = RTT -1.8 |
554 |
endif |
555 |
enddo |
556 |
|
557 |
CALL calbeta(dtime, nisurf, knon, snow, qsol, beta, capsol, dif_grnd) |
558 |
|
559 |
IF (soil_model) THEN |
560 |
!IM cf LF/JLD CALL soil(dtime, nisurf, knon, snow, tsurf, tsoil, soilcap, soilflux) |
561 |
CALL soil(dtime, nisurf, knon, snow, tsurf_new, tsoil, soilcap, soilflux) |
562 |
cal(1:knon) = RCPD / soilcap(1:knon) |
563 |
radsol(1:knon) = radsol(1:knon) + soilflux(1:knon) |
564 |
dif_grnd = 0. |
565 |
ELSE |
566 |
dif_grnd = 1.0 / tau_gl |
567 |
cal = RCPD * calice |
568 |
WHERE (snow > 0.0) cal = RCPD * calsno |
569 |
ENDIF |
570 |
!IMbadtsurf_temp = tsurf |
571 |
tsurf_temp = tsurf_new |
572 |
beta = 1.0 |
573 |
ENDIF |
574 |
|
575 |
CALL calcul_fluxs( klon, knon, nisurf, dtime, & |
576 |
& tsurf_temp, p1lay, cal, beta, tq_cdrag, ps, & |
577 |
& precip_rain, precip_snow, snow, qsurf, & |
578 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
579 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
580 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
581 |
|
582 |
!IM: flux entre l'ocean et la glace de mer pour le "slab" ocean |
583 |
DO i = 1, knon |
584 |
flux_g(i) = 0.0 |
585 |
|
586 |
!IM: faire dependre le coefficient de conduction de la glace de mer |
587 |
! de l'epaisseur de la glace de mer, dans l'hypothese ou le coeff. |
588 |
! actuel correspond a 3m de glace de mer, cf. L.Li |
589 |
|
590 |
! IF(1.EQ.0) THEN |
591 |
! IF(siceh(i).GT.0.) THEN |
592 |
! new_dif_grnd(i) = dif_grnd(i)*3./siceh(i) |
593 |
! ELSE |
594 |
! new_dif_grnd(i) = 0. |
595 |
! ENDIF |
596 |
! ENDIF !(1.EQ.0) THEN |
597 |
|
598 |
IF (cal(i).GT.1.0e-15) flux_g(i)=(tsurf_new(i)-t_grnd) & |
599 |
& * dif_grnd(i) *RCPD/cal(i) |
600 |
! & * new_dif_grnd(i) *RCPD/cal(i) |
601 |
tmp_flux_g(knindex(i))=flux_g(i) |
602 |
tmp_radsol(knindex(i))=radsol(i) |
603 |
ENDDO |
604 |
|
605 |
CALL fonte_neige( klon, knon, nisurf, dtime, & |
606 |
& tsurf_temp, p1lay, cal, beta, tq_cdrag, ps, & |
607 |
& precip_rain, precip_snow, snow, qsol, & |
608 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
609 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
610 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l, & |
611 |
& fqcalving, ffonte, run_off_lic_0) |
612 |
|
613 |
! calcul albedo |
614 |
|
615 |
CALL albsno(klon, knon, dtime, agesno, alb_neig, precip_snow) |
616 |
WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0. |
617 |
zfra(1:knon) = MAX(0.0, MIN(1.0, snow(1:knon)/(snow(1:knon)+10.0))) |
618 |
alb_new(1 : knon) = alb_neig(1 : knon) *zfra(1:knon) + & |
619 |
0.6 * (1.0-zfra(1:knon)) |
620 |
|
621 |
fder_prev = fder |
622 |
fder = fder_prev + dflux_s + dflux_l |
623 |
|
624 |
iloc = maxloc(fder(1:klon)) |
625 |
if (check.and.fder(iloc(1))> 0.) then |
626 |
WRITE(*, *)'**** Debug fder ****' |
627 |
WRITE(*, *)'max fder(', iloc(1), ') = ', fder(iloc(1)) |
628 |
WRITE(*, *)'fder_prev, dflux_s, dflux_l', fder_prev(iloc(1)), & |
629 |
& dflux_s(iloc(1)), dflux_l(iloc(1)) |
630 |
endif |
631 |
|
632 |
|
633 |
! 2eme appel a interfoce pour le cumul et le passage des flux a l'ocean |
634 |
|
635 |
z0_new = 0.002 |
636 |
z0_new = SQRT(z0_new**2+rugoro**2) |
637 |
alblw(1:knon) = alb_new(1:knon) |
638 |
|
639 |
else if (nisurf == is_lic) then |
640 |
|
641 |
if (check) write(*, *)'glacier, nisurf = ', nisurf |
642 |
|
643 |
if (.not. allocated(run_off_lic)) then |
644 |
allocate(run_off_lic(knon), stat = error) |
645 |
if (error /= 0) then |
646 |
abort_message='Pb allocation run_off_lic' |
647 |
call abort_gcm(modname, abort_message, 1) |
648 |
endif |
649 |
run_off_lic = 0. |
650 |
endif |
651 |
|
652 |
! Surface "glacier continentaux" appel a l'interface avec le sol |
653 |
|
654 |
IF (soil_model) THEN |
655 |
CALL soil(dtime, nisurf, knon, snow, tsurf, tsoil, soilcap, soilflux) |
656 |
cal(1:knon) = RCPD / soilcap(1:knon) |
657 |
radsol(1:knon) = radsol(1:knon) + soilflux(1:knon) |
658 |
ELSE |
659 |
cal = RCPD * calice |
660 |
WHERE (snow > 0.0) cal = RCPD * calsno |
661 |
ENDIF |
662 |
beta = 1.0 |
663 |
dif_grnd = 0.0 |
664 |
|
665 |
call calcul_fluxs( klon, knon, nisurf, dtime, & |
666 |
& tsurf, p1lay, cal, beta, tq_cdrag, ps, & |
667 |
& precip_rain, precip_snow, snow, qsurf, & |
668 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
669 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
670 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
671 |
|
672 |
call fonte_neige( klon, knon, nisurf, dtime, & |
673 |
& tsurf, p1lay, cal, beta, tq_cdrag, ps, & |
674 |
& precip_rain, precip_snow, snow, qsol, & |
675 |
& radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, & |
676 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
677 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l, & |
678 |
& fqcalving, ffonte, run_off_lic_0) |
679 |
|
680 |
! passage du run-off des glaciers calcule dans fonte_neige au coupleur |
681 |
bidule=0. |
682 |
bidule(1:knon)= run_off_lic(1:knon) |
683 |
call gath2cpl(bidule, tmp_rlic, klon, knon, iim, jjm, knindex) |
684 |
|
685 |
! calcul albedo |
686 |
|
687 |
CALL albsno(klon, knon, dtime, agesno, alb_neig, precip_snow) |
688 |
WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0. |
689 |
zfra(1:knon) = MAX(0.0, MIN(1.0, snow(1:knon)/(snow(1:knon)+10.0))) |
690 |
alb_new(1 : knon) = alb_neig(1 : knon)*zfra(1:knon) + & |
691 |
& 0.6 * (1.0-zfra(1:knon)) |
692 |
|
693 |
!IM: plusieurs choix/tests sur l'albedo des "glaciers continentaux" |
694 |
! alb_new(1 : knon) = 0.6 !IM cf FH/GK |
695 |
! alb_new(1 : knon) = 0.82 |
696 |
! alb_new(1 : knon) = 0.77 !211003 Ksta0.77 |
697 |
! alb_new(1 : knon) = 0.8 !KstaTER0.8 & LMD_ARMIP5 |
698 |
!IM: KstaTER0.77 & LMD_ARMIP6 |
699 |
alb_new(1 : knon) = 0.77 |
700 |
|
701 |
|
702 |
! Rugosite |
703 |
|
704 |
z0_new = rugoro |
705 |
|
706 |
! Remplissage des pourcentages de surface |
707 |
|
708 |
pctsrf_new(:, nisurf) = pctsrf(:, nisurf) |
709 |
|
710 |
alblw(1:knon) = alb_new(1:knon) |
711 |
else |
712 |
write(*, *)'Index surface = ', nisurf |
713 |
abort_message = 'Index surface non valable' |
714 |
call abort_gcm(modname, abort_message, 1) |
715 |
endif |
716 |
|
717 |
END SUBROUTINE interfsurf_hq |
718 |
|
719 |
!************************ |
720 |
|
721 |
SUBROUTINE interfoce_slab(klon, debut, itap, dtime, ijour, & |
722 |
& radsol, fluxo, fluxg, pctsrf, & |
723 |
& tslab, seaice, pctsrf_slab) |
724 |
|
725 |
! Cette routine calcule la temperature d'un slab ocean, la glace de mer |
726 |
! et les pourcentages de la maille couverte par l'ocean libre et/ou |
727 |
! la glace de mer pour un "slab" ocean de 50m |
728 |
|
729 |
! I. Musat 04.02.2005 |
730 |
|
731 |
! input: |
732 |
! klon nombre total de points de grille |
733 |
! debut logical: 1er appel a la physique |
734 |
! itap numero du pas de temps |
735 |
! dtime pas de temps de la physique (en s) |
736 |
! ijour jour dans l'annee en cours |
737 |
! radsol rayonnement net au sol (LW + SW) |
738 |
! fluxo flux turbulent (sensible + latent) sur les mailles oceaniques |
739 |
! fluxg flux de conduction entre la surface de la glace de mer et l'ocean |
740 |
! pctsrf tableau des pourcentages de surface de chaque maille |
741 |
! output: |
742 |
! tslab temperature de l'ocean libre |
743 |
! seaice glace de mer (kg/m2) |
744 |
! pctsrf_slab "pourcentages" (valeurs entre 0. et 1.) surfaces issus du slab |
745 |
|
746 |
use indicesol |
747 |
use clesphys |
748 |
use abort_gcm_m, only: abort_gcm |
749 |
use YOMCST |
750 |
|
751 |
! Parametres d'entree |
752 |
integer, intent(IN) :: klon |
753 |
logical, intent(IN) :: debut |
754 |
INTEGER, intent(IN) :: itap |
755 |
REAL, intent(IN) :: dtime |
756 |
INTEGER, intent(IN) :: ijour |
757 |
REAL, dimension(klon), intent(IN) :: radsol |
758 |
REAL, dimension(klon), intent(IN) :: fluxo |
759 |
REAL, dimension(klon), intent(IN) :: fluxg |
760 |
real, dimension(klon, nbsrf), intent(IN) :: pctsrf |
761 |
! Parametres de sortie |
762 |
real, dimension(klon), intent(INOUT) :: tslab |
763 |
real, dimension(klon), intent(INOUT) :: seaice ! glace de mer (kg/m2) |
764 |
real, dimension(klon, nbsrf), intent(OUT) :: pctsrf_slab |
765 |
|
766 |
! Variables locales : |
767 |
INTEGER, save :: lmt_pas, julien, idayvrai |
768 |
REAL, parameter :: unjour=86400. |
769 |
real, allocatable, dimension(:), save :: tmp_tslab, tmp_seaice |
770 |
REAL, allocatable, dimension(:), save :: slab_bils |
771 |
REAL, allocatable, dimension(:), save :: lmt_bils |
772 |
logical, save :: check = .false. |
773 |
|
774 |
REAL, parameter :: cyang=50.0 * 4.228e+06 ! capacite calorifique volumetrique de l'eau J/(m2 K) |
775 |
REAL, parameter :: cbing=0.334e+05 ! J/kg |
776 |
real, dimension(klon) :: siceh !hauteur de la glace de mer (m) |
777 |
INTEGER :: i |
778 |
integer :: sum_error, error |
779 |
REAL :: zz, za, zb |
780 |
|
781 |
character (len = 80) :: abort_message |
782 |
character (len = 20) :: modname = 'interfoce_slab' |
783 |
|
784 |
julien = MOD(ijour, 360) |
785 |
sum_error = 0 |
786 |
IF (debut) THEN |
787 |
allocate(slab_bils(klon), stat = error); sum_error = sum_error + error |
788 |
allocate(lmt_bils(klon), stat = error); sum_error = sum_error + error |
789 |
allocate(tmp_tslab(klon), stat = error); sum_error = sum_error + error |
790 |
allocate(tmp_seaice(klon), stat = error); sum_error = sum_error + error |
791 |
if (sum_error /= 0) then |
792 |
abort_message='Pb allocation var. slab_bils, lmt_bils, tmp_tslab, tmp_seaice' |
793 |
call abort_gcm(modname, abort_message, 1) |
794 |
endif |
795 |
tmp_tslab=tslab |
796 |
tmp_seaice=seaice |
797 |
lmt_pas = nint(86400./dtime * 1.0) ! pour une lecture une fois par jour |
798 |
|
799 |
IF (check) THEN |
800 |
PRINT*, 'interfoce_slab klon, debut, itap, dtime, ijour, & |
801 |
& lmt_pas ', klon, debut, itap, dtime, ijour, & |
802 |
& lmt_pas |
803 |
ENDIF !check |
804 |
|
805 |
PRINT*, '************************' |
806 |
PRINT*, 'SLAB OCEAN est actif, prenez precautions !' |
807 |
PRINT*, '************************' |
808 |
|
809 |
! a mettre un slab_bils aussi en force !!! |
810 |
|
811 |
DO i = 1, klon |
812 |
slab_bils(i) = 0.0 |
813 |
ENDDO |
814 |
|
815 |
ENDIF !debut |
816 |
pctsrf_slab(1:klon, 1:nbsrf) = pctsrf(1:klon, 1:nbsrf) |
817 |
|
818 |
! lecture du bilan au sol lmt_bils issu d'une simulation forcee en debut de journee |
819 |
|
820 |
IF (MOD(itap, lmt_pas) .EQ. 1) THEN !1er pas de temps de la journee |
821 |
idayvrai = ijour |
822 |
CALL condsurf(julien, idayvrai, lmt_bils) |
823 |
ENDIF !(MOD(itap-1, lmt_pas) .EQ. 0) THEN |
824 |
|
825 |
DO i = 1, klon |
826 |
IF((pctsrf_slab(i, is_oce).GT.epsfra).OR. & |
827 |
& (pctsrf_slab(i, is_sic).GT.epsfra)) THEN |
828 |
|
829 |
! fabriquer de la glace si congelation atteinte: |
830 |
|
831 |
IF (tmp_tslab(i).LT.(RTT-1.8)) THEN |
832 |
zz = (RTT-1.8)-tmp_tslab(i) |
833 |
tmp_seaice(i) = tmp_seaice(i) + cyang/cbing * zz |
834 |
seaice(i) = tmp_seaice(i) |
835 |
tmp_tslab(i) = RTT-1.8 |
836 |
ENDIF |
837 |
|
838 |
! faire fondre de la glace si temperature est superieure a 0: |
839 |
|
840 |
IF ((tmp_tslab(i).GT.RTT) .AND. (tmp_seaice(i).GT.0.0)) THEN |
841 |
zz = cyang/cbing * (tmp_tslab(i)-RTT) |
842 |
zz = MIN(zz, tmp_seaice(i)) |
843 |
tmp_seaice(i) = tmp_seaice(i) - zz |
844 |
seaice(i) = tmp_seaice(i) |
845 |
tmp_tslab(i) = tmp_tslab(i) - zz*cbing/cyang |
846 |
ENDIF |
847 |
|
848 |
! limiter la glace de mer a 10 metres (10000 kg/m2) |
849 |
|
850 |
IF(tmp_seaice(i).GT.45.) THEN |
851 |
tmp_seaice(i) = MIN(tmp_seaice(i), 10000.0) |
852 |
ELSE |
853 |
tmp_seaice(i) = 0. |
854 |
ENDIF |
855 |
seaice(i) = tmp_seaice(i) |
856 |
siceh(i)=tmp_seaice(i)/1000. !en metres |
857 |
|
858 |
! determiner la nature du sol (glace de mer ou ocean libre): |
859 |
|
860 |
! on fait dependre la fraction de seaice "pctsrf(i, is_sic)" |
861 |
! de l'epaisseur de seaice : |
862 |
! pctsrf(i, is_sic)=1. si l'epaisseur de la glace de mer est >= a 20cm |
863 |
! et pctsrf(i, is_sic) croit lineairement avec seaice de 0. a 20cm d'epaisseur |
864 |
|
865 |
pctsrf_slab(i, is_sic)=MIN(siceh(i)/0.20, & |
866 |
& 1.-(pctsrf_slab(i, is_ter)+pctsrf_slab(i, is_lic))) |
867 |
pctsrf_slab(i, is_oce)=1.0 - & |
868 |
& (pctsrf_slab(i, is_ter)+pctsrf_slab(i, is_lic)+pctsrf_slab(i, is_sic)) |
869 |
ENDIF !pctsrf |
870 |
ENDDO |
871 |
|
872 |
! Calculer le bilan du flux de chaleur au sol : |
873 |
|
874 |
DO i = 1, klon |
875 |
za = radsol(i) + fluxo(i) |
876 |
zb = fluxg(i) |
877 |
IF((pctsrf_slab(i, is_oce).GT.epsfra).OR. & |
878 |
& (pctsrf_slab(i, is_sic).GT.epsfra)) THEN |
879 |
slab_bils(i)=slab_bils(i)+(za*pctsrf_slab(i, is_oce) & |
880 |
& +zb*pctsrf_slab(i, is_sic))/ FLOAT(lmt_pas) |
881 |
ENDIF |
882 |
ENDDO !klon |
883 |
|
884 |
! calcul tslab |
885 |
|
886 |
IF (MOD(itap, lmt_pas).EQ.0) THEN !fin de journee |
887 |
DO i = 1, klon |
888 |
IF ((pctsrf_slab(i, is_oce).GT.epsfra).OR. & |
889 |
& (pctsrf_slab(i, is_sic).GT.epsfra)) THEN |
890 |
tmp_tslab(i) = tmp_tslab(i) + & |
891 |
& (slab_bils(i)-lmt_bils(i)) & |
892 |
& /cyang*unjour |
893 |
! on remet l'accumulation a 0 |
894 |
slab_bils(i) = 0. |
895 |
ENDIF !pctsrf |
896 |
ENDDO !klon |
897 |
ENDIF !(MOD(itap, lmt_pas).EQ.0) THEN |
898 |
|
899 |
tslab = tmp_tslab |
900 |
seaice = tmp_seaice |
901 |
END SUBROUTINE interfoce_slab |
902 |
|
903 |
!************************ |
904 |
|
905 |
SUBROUTINE interfoce_lim(itime, dtime, jour, & |
906 |
& klon, nisurf, knon, knindex, & |
907 |
& debut, & |
908 |
& lmt_sst, pctsrf_new) |
909 |
|
910 |
! Cette routine sert d'interface entre le modele atmospherique et |
911 |
! un fichier de conditions aux limites |
912 |
|
913 |
! L. Fairhead 02/2000 |
914 |
|
915 |
use abort_gcm_m, only: abort_gcm |
916 |
use indicesol |
917 |
|
918 |
integer, intent(IN) :: itime ! numero du pas de temps courant |
919 |
real , intent(IN) :: dtime ! pas de temps de la physique (en s) |
920 |
integer, intent(IN) :: jour ! jour a lire dans l'annee |
921 |
integer, intent(IN) :: nisurf ! index de la surface a traiter (1 = sol continental) |
922 |
integer, intent(IN) :: knon ! nombre de points dans le domaine a traiter |
923 |
integer, intent(IN) :: klon ! taille de la grille |
924 |
integer, dimension(klon), intent(in) :: knindex ! index des points de la surface a traiter |
925 |
logical, intent(IN) :: debut ! logical: 1er appel a la physique (initialisation) |
926 |
|
927 |
! Parametres de sortie |
928 |
! output: |
929 |
! lmt_sst SST lues dans le fichier de CL |
930 |
! pctsrf_new sous-maille fractionnelle |
931 |
real, intent(out), dimension(klon) :: lmt_sst |
932 |
real, intent(out), dimension(klon, nbsrf) :: pctsrf_new |
933 |
|
934 |
! Variables locales |
935 |
integer :: ii |
936 |
INTEGER, save :: lmt_pas ! frequence de lecture des conditions limites |
937 |
! (en pas de physique) |
938 |
logical, save :: deja_lu ! pour indiquer que le jour a lire a deja |
939 |
! lu pour une surface precedente |
940 |
integer, save :: jour_lu |
941 |
integer :: ierr |
942 |
character (len = 20) :: modname = 'interfoce_lim' |
943 |
character (len = 80) :: abort_message |
944 |
logical, save :: newlmt = .TRUE. |
945 |
logical, save :: check = .FALSE. |
946 |
! Champs lus dans le fichier de CL |
947 |
real, allocatable , save, dimension(:) :: sst_lu, rug_lu, nat_lu |
948 |
real, allocatable , save, dimension(:, :) :: pct_tmp |
949 |
|
950 |
! quelques variables pour netcdf |
951 |
|
952 |
include "netcdf.inc" |
953 |
integer :: nid, nvarid |
954 |
integer, dimension(2) :: start, epais |
955 |
|
956 |
! -------------------------------------------------- |
957 |
|
958 |
if (debut .and. .not. allocated(sst_lu)) then |
959 |
lmt_pas = nint(86400./dtime * 1.0) ! pour une lecture une fois par jour |
960 |
jour_lu = jour - 1 |
961 |
allocate(sst_lu(klon)) |
962 |
allocate(nat_lu(klon)) |
963 |
allocate(pct_tmp(klon, nbsrf)) |
964 |
endif |
965 |
|
966 |
if ((jour - jour_lu) /= 0) deja_lu = .false. |
967 |
|
968 |
if (check) write(*, *)modname, ' :: jour, jour_lu, deja_lu', jour, jour_lu, & |
969 |
deja_lu |
970 |
if (check) write(*, *)modname, ' :: itime, lmt_pas ', itime, lmt_pas, dtime |
971 |
|
972 |
! Tester d'abord si c'est le moment de lire le fichier |
973 |
if (mod(itime-1, lmt_pas) == 0 .and. .not. deja_lu) then |
974 |
|
975 |
! Ouverture du fichier |
976 |
|
977 |
ierr = NF_OPEN ('limit.nc', NF_NOWRITE, nid) |
978 |
if (ierr.NE.NF_NOERR) then |
979 |
abort_message & |
980 |
= 'Pb d''ouverture du fichier de conditions aux limites' |
981 |
call abort_gcm(modname, abort_message, 1) |
982 |
endif |
983 |
|
984 |
! La tranche de donnees a lire: |
985 |
|
986 |
start(1) = 1 |
987 |
start(2) = jour |
988 |
epais(1) = klon |
989 |
epais(2) = 1 |
990 |
|
991 |
if (newlmt) then |
992 |
|
993 |
! Fraction "ocean" |
994 |
|
995 |
ierr = NF_INQ_VARID(nid, 'FOCE', nvarid) |
996 |
if (ierr /= NF_NOERR) then |
997 |
abort_message = 'Le champ <FOCE> est absent' |
998 |
call abort_gcm(modname, abort_message, 1) |
999 |
endif |
1000 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, pct_tmp(1, is_oce)) |
1001 |
if (ierr /= NF_NOERR) then |
1002 |
abort_message = 'Lecture echouee pour <FOCE>' |
1003 |
call abort_gcm(modname, abort_message, 1) |
1004 |
endif |
1005 |
|
1006 |
! Fraction "glace de mer" |
1007 |
|
1008 |
ierr = NF_INQ_VARID(nid, 'FSIC', nvarid) |
1009 |
if (ierr /= NF_NOERR) then |
1010 |
abort_message = 'Le champ <FSIC> est absent' |
1011 |
call abort_gcm(modname, abort_message, 1) |
1012 |
endif |
1013 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, pct_tmp(1, is_sic)) |
1014 |
if (ierr /= NF_NOERR) then |
1015 |
abort_message = 'Lecture echouee pour <FSIC>' |
1016 |
call abort_gcm(modname, abort_message, 1) |
1017 |
endif |
1018 |
|
1019 |
! Fraction "terre" |
1020 |
|
1021 |
ierr = NF_INQ_VARID(nid, 'FTER', nvarid) |
1022 |
if (ierr /= NF_NOERR) then |
1023 |
abort_message = 'Le champ <FTER> est absent' |
1024 |
call abort_gcm(modname, abort_message, 1) |
1025 |
endif |
1026 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, pct_tmp(1, is_ter)) |
1027 |
if (ierr /= NF_NOERR) then |
1028 |
abort_message = 'Lecture echouee pour <FTER>' |
1029 |
call abort_gcm(modname, abort_message, 1) |
1030 |
endif |
1031 |
|
1032 |
! Fraction "glacier terre" |
1033 |
|
1034 |
ierr = NF_INQ_VARID(nid, 'FLIC', nvarid) |
1035 |
if (ierr /= NF_NOERR) then |
1036 |
abort_message = 'Le champ <FLIC> est absent' |
1037 |
call abort_gcm(modname, abort_message, 1) |
1038 |
endif |
1039 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, pct_tmp(1, is_lic)) |
1040 |
if (ierr /= NF_NOERR) then |
1041 |
abort_message = 'Lecture echouee pour <FLIC>' |
1042 |
call abort_gcm(modname, abort_message, 1) |
1043 |
endif |
1044 |
|
1045 |
else ! on en est toujours a rnatur |
1046 |
|
1047 |
ierr = NF_INQ_VARID(nid, 'NAT', nvarid) |
1048 |
if (ierr /= NF_NOERR) then |
1049 |
abort_message = 'Le champ <NAT> est absent' |
1050 |
call abort_gcm(modname, abort_message, 1) |
1051 |
endif |
1052 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, nat_lu) |
1053 |
if (ierr /= NF_NOERR) then |
1054 |
abort_message = 'Lecture echouee pour <NAT>' |
1055 |
call abort_gcm(modname, abort_message, 1) |
1056 |
endif |
1057 |
|
1058 |
! Remplissage des fractions de surface |
1059 |
! nat = 0, 1, 2, 3 pour ocean, terre, glacier, seaice |
1060 |
|
1061 |
pct_tmp = 0.0 |
1062 |
do ii = 1, klon |
1063 |
pct_tmp(ii, nint(nat_lu(ii)) + 1) = 1. |
1064 |
enddo |
1065 |
|
1066 |
|
1067 |
! On se retrouve avec ocean en 1 et terre en 2 alors qu'on veut le contraire |
1068 |
|
1069 |
pctsrf_new = pct_tmp |
1070 |
pctsrf_new (:, 2)= pct_tmp (:, 1) |
1071 |
pctsrf_new (:, 1)= pct_tmp (:, 2) |
1072 |
pct_tmp = pctsrf_new |
1073 |
endif ! fin test sur newlmt |
1074 |
|
1075 |
! Lecture SST |
1076 |
|
1077 |
ierr = NF_INQ_VARID(nid, 'SST', nvarid) |
1078 |
if (ierr /= NF_NOERR) then |
1079 |
abort_message = 'Le champ <SST> est absent' |
1080 |
call abort_gcm(modname, abort_message, 1) |
1081 |
endif |
1082 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, sst_lu) |
1083 |
if (ierr /= NF_NOERR) then |
1084 |
abort_message = 'Lecture echouee pour <SST>' |
1085 |
call abort_gcm(modname, abort_message, 1) |
1086 |
endif |
1087 |
|
1088 |
|
1089 |
! Fin de lecture |
1090 |
|
1091 |
ierr = NF_CLOSE(nid) |
1092 |
deja_lu = .true. |
1093 |
jour_lu = jour |
1094 |
endif |
1095 |
|
1096 |
! Recopie des variables dans les champs de sortie |
1097 |
|
1098 |
lmt_sst = 999999999. |
1099 |
do ii = 1, knon |
1100 |
lmt_sst(ii) = sst_lu(knindex(ii)) |
1101 |
enddo |
1102 |
|
1103 |
pctsrf_new(:, is_oce) = pct_tmp(:, is_oce) |
1104 |
pctsrf_new(:, is_sic) = pct_tmp(:, is_sic) |
1105 |
|
1106 |
END SUBROUTINE interfoce_lim |
1107 |
|
1108 |
!************************ |
1109 |
|
1110 |
SUBROUTINE interfsur_lim(itime, dtime, jour, & |
1111 |
& klon, nisurf, knon, knindex, & |
1112 |
& debut, & |
1113 |
& lmt_alb, lmt_rug) |
1114 |
|
1115 |
! Cette routine sert d'interface entre le modèle atmosphérique et |
1116 |
! un fichier de conditions aux limites. |
1117 |
|
1118 |
! L. Fairhead 02/2000 |
1119 |
|
1120 |
use abort_gcm_m, only: abort_gcm |
1121 |
|
1122 |
! Parametres d'entree |
1123 |
! input: |
1124 |
! itime numero du pas de temps courant |
1125 |
! dtime pas de temps de la physique (en s) |
1126 |
! jour jour a lire dans l'annee |
1127 |
! nisurf index de la surface a traiter (1 = sol continental) |
1128 |
! knon nombre de points dans le domaine a traiter |
1129 |
! knindex index des points de la surface a traiter |
1130 |
! klon taille de la grille |
1131 |
! debut logical: 1er appel a la physique (initialisation) |
1132 |
integer, intent(IN) :: itime |
1133 |
real , intent(IN) :: dtime |
1134 |
integer, intent(IN) :: jour |
1135 |
integer, intent(IN) :: nisurf |
1136 |
integer, intent(IN) :: knon |
1137 |
integer, intent(IN) :: klon |
1138 |
integer, dimension(klon), intent(in) :: knindex |
1139 |
logical, intent(IN) :: debut |
1140 |
|
1141 |
! Parametres de sortie |
1142 |
! output: |
1143 |
! lmt_sst SST lues dans le fichier de CL |
1144 |
! lmt_alb Albedo lu |
1145 |
! lmt_rug longueur de rugosité lue |
1146 |
! pctsrf_new sous-maille fractionnelle |
1147 |
real, intent(out), dimension(klon) :: lmt_alb |
1148 |
real, intent(out), dimension(klon) :: lmt_rug |
1149 |
|
1150 |
! Variables locales |
1151 |
integer :: ii |
1152 |
integer, save :: lmt_pas ! frequence de lecture des conditions limites |
1153 |
! (en pas de physique) |
1154 |
logical, save :: deja_lu_sur! pour indiquer que le jour a lire a deja |
1155 |
! lu pour une surface precedente |
1156 |
integer, save :: jour_lu_sur |
1157 |
integer :: ierr |
1158 |
character (len = 20) :: modname = 'interfsur_lim' |
1159 |
character (len = 80) :: abort_message |
1160 |
logical, save :: newlmt = .false. |
1161 |
logical, save :: check = .false. |
1162 |
! Champs lus dans le fichier de CL |
1163 |
real, allocatable , save, dimension(:) :: alb_lu, rug_lu |
1164 |
|
1165 |
! quelques variables pour netcdf |
1166 |
|
1167 |
include "netcdf.inc" |
1168 |
integer , save :: nid, nvarid |
1169 |
integer, dimension(2), save :: start, epais |
1170 |
|
1171 |
!------------------------------------------------------------ |
1172 |
|
1173 |
if (debut) then |
1174 |
lmt_pas = nint(86400./dtime * 1.0) ! pour une lecture une fois par jour |
1175 |
jour_lu_sur = jour - 1 |
1176 |
allocate(alb_lu(klon)) |
1177 |
allocate(rug_lu(klon)) |
1178 |
endif |
1179 |
|
1180 |
if ((jour - jour_lu_sur) /= 0) deja_lu_sur = .false. |
1181 |
|
1182 |
if (check) write(*, *)modname, ':: jour_lu_sur, deja_lu_sur', jour_lu_sur, & |
1183 |
deja_lu_sur |
1184 |
if (check) write(*, *)modname, ':: itime, lmt_pas', itime, lmt_pas |
1185 |
|
1186 |
! Tester d'abord si c'est le moment de lire le fichier |
1187 |
if (mod(itime-1, lmt_pas) == 0 .and. .not. deja_lu_sur) then |
1188 |
|
1189 |
! Ouverture du fichier |
1190 |
|
1191 |
ierr = NF_OPEN ('limit.nc', NF_NOWRITE, nid) |
1192 |
if (ierr.NE.NF_NOERR) then |
1193 |
abort_message & |
1194 |
= 'Pb d''ouverture du fichier de conditions aux limites' |
1195 |
call abort_gcm(modname, abort_message, 1) |
1196 |
endif |
1197 |
|
1198 |
! La tranche de donnees a lire: |
1199 |
|
1200 |
start(1) = 1 |
1201 |
start(2) = jour |
1202 |
epais(1) = klon |
1203 |
epais(2) = 1 |
1204 |
|
1205 |
! Lecture Albedo |
1206 |
|
1207 |
ierr = NF_INQ_VARID(nid, 'ALB', nvarid) |
1208 |
if (ierr /= NF_NOERR) then |
1209 |
abort_message = 'Le champ <ALB> est absent' |
1210 |
call abort_gcm(modname, abort_message, 1) |
1211 |
endif |
1212 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, alb_lu) |
1213 |
if (ierr /= NF_NOERR) then |
1214 |
abort_message = 'Lecture echouee pour <ALB>' |
1215 |
call abort_gcm(modname, abort_message, 1) |
1216 |
endif |
1217 |
|
1218 |
! Lecture rugosité |
1219 |
|
1220 |
ierr = NF_INQ_VARID(nid, 'RUG', nvarid) |
1221 |
if (ierr /= NF_NOERR) then |
1222 |
abort_message = 'Le champ <RUG> est absent' |
1223 |
call abort_gcm(modname, abort_message, 1) |
1224 |
endif |
1225 |
ierr = NF_GET_VARA_REAL(nid, nvarid, start, epais, rug_lu) |
1226 |
if (ierr /= NF_NOERR) then |
1227 |
abort_message = 'Lecture echouee pour <RUG>' |
1228 |
call abort_gcm(modname, abort_message, 1) |
1229 |
endif |
1230 |
|
1231 |
|
1232 |
! Fin de lecture |
1233 |
|
1234 |
ierr = NF_CLOSE(nid) |
1235 |
deja_lu_sur = .true. |
1236 |
jour_lu_sur = jour |
1237 |
endif |
1238 |
|
1239 |
! Recopie des variables dans les champs de sortie |
1240 |
|
1241 |
!!$ lmt_alb = 0.0 |
1242 |
!!$ lmt_rug = 0.0 |
1243 |
lmt_alb = 999999. |
1244 |
lmt_rug = 999999. |
1245 |
DO ii = 1, knon |
1246 |
lmt_alb(ii) = alb_lu(knindex(ii)) |
1247 |
lmt_rug(ii) = rug_lu(knindex(ii)) |
1248 |
enddo |
1249 |
|
1250 |
END SUBROUTINE interfsur_lim |
1251 |
|
1252 |
!************************ |
1253 |
|
1254 |
SUBROUTINE calcul_fluxs( klon, knon, nisurf, dtime, & |
1255 |
& tsurf, p1lay, cal, beta, coef1lay, ps, & |
1256 |
& precip_rain, precip_snow, snow, qsurf, & |
1257 |
& radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, & |
1258 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
1259 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l) |
1260 |
|
1261 |
! Cette routine calcule les fluxs en h et q a l'interface et eventuellement |
1262 |
! une temperature de surface (au cas ou ok_veget = false) |
1263 |
|
1264 |
! L. Fairhead 4/2000 |
1265 |
|
1266 |
! input: |
1267 |
! knon nombre de points a traiter |
1268 |
! nisurf surface a traiter |
1269 |
! tsurf temperature de surface |
1270 |
! p1lay pression 1er niveau (milieu de couche) |
1271 |
! cal capacite calorifique du sol |
1272 |
! beta evap reelle |
1273 |
! coef1lay coefficient d'echange |
1274 |
! ps pression au sol |
1275 |
! precip_rain precipitations liquides |
1276 |
! precip_snow precipitations solides |
1277 |
! snow champs hauteur de neige |
1278 |
! runoff runoff en cas de trop plein |
1279 |
! petAcoef coeff. A de la resolution de la CL pour t |
1280 |
! peqAcoef coeff. A de la resolution de la CL pour q |
1281 |
! petBcoef coeff. B de la resolution de la CL pour t |
1282 |
! peqBcoef coeff. B de la resolution de la CL pour q |
1283 |
! radsol rayonnement net aus sol (LW + SW) |
1284 |
! dif_grnd coeff. diffusion vers le sol profond |
1285 |
|
1286 |
! output: |
1287 |
! tsurf_new temperature au sol |
1288 |
! qsurf humidite de l'air au dessus du sol |
1289 |
! fluxsens flux de chaleur sensible |
1290 |
! fluxlat flux de chaleur latente |
1291 |
! dflux_s derivee du flux de chaleur sensible / Ts |
1292 |
! dflux_l derivee du flux de chaleur latente / Ts |
1293 |
|
1294 |
|
1295 |
use indicesol |
1296 |
use abort_gcm_m, only: abort_gcm |
1297 |
use yoethf |
1298 |
use fcttre, only: thermcep, foeew, qsats, qsatl, foede, dqsats, dqsatl |
1299 |
use YOMCST |
1300 |
|
1301 |
! Parametres d'entree |
1302 |
integer, intent(IN) :: knon, nisurf, klon |
1303 |
real , intent(IN) :: dtime |
1304 |
real, dimension(klon), intent(IN) :: petAcoef, peqAcoef |
1305 |
real, dimension(klon), intent(IN) :: petBcoef, peqBcoef |
1306 |
real, dimension(klon), intent(IN) :: ps, q1lay |
1307 |
real, dimension(klon), intent(IN) :: tsurf, p1lay, cal, beta, coef1lay |
1308 |
real, dimension(klon), intent(IN) :: precip_rain, precip_snow |
1309 |
real, dimension(klon), intent(IN) :: radsol, dif_grnd |
1310 |
real, dimension(klon), intent(IN) :: t1lay, u1lay, v1lay |
1311 |
real, dimension(klon), intent(INOUT) :: snow, qsurf |
1312 |
|
1313 |
! Parametres sorties |
1314 |
real, dimension(klon), intent(OUT):: tsurf_new, evap, fluxsens, fluxlat |
1315 |
real, dimension(klon), intent(OUT):: dflux_s, dflux_l |
1316 |
|
1317 |
! Variables locales |
1318 |
integer :: i |
1319 |
real, dimension(klon) :: zx_mh, zx_nh, zx_oh |
1320 |
real, dimension(klon) :: zx_mq, zx_nq, zx_oq |
1321 |
real, dimension(klon) :: zx_pkh, zx_dq_s_dt, zx_qsat, zx_coef |
1322 |
real, dimension(klon) :: zx_sl, zx_k1 |
1323 |
real, dimension(klon) :: zx_q_0 , d_ts |
1324 |
real :: zdelta, zcvm5, zx_qs, zcor, zx_dq_s_dh |
1325 |
real :: bilan_f, fq_fonte |
1326 |
REAL :: subli, fsno |
1327 |
REAL :: qsat_new, q1_new |
1328 |
real, parameter :: t_grnd = 271.35, t_coup = 273.15 |
1329 |
!! PB temporaire en attendant mieux pour le modele de neige |
1330 |
REAL, parameter :: chasno = 3.334E+05/(2.3867E+06*0.15) |
1331 |
|
1332 |
logical, save :: check = .false. |
1333 |
character (len = 20) :: modname = 'calcul_fluxs' |
1334 |
logical, save :: fonte_neige = .false. |
1335 |
real, save :: max_eau_sol = 150.0 |
1336 |
character (len = 80) :: abort_message |
1337 |
logical, save :: first = .true., second=.false. |
1338 |
|
1339 |
if (check) write(*, *)'Entree ', modname, ' surface = ', nisurf |
1340 |
|
1341 |
IF (check) THEN |
1342 |
WRITE(*, *)' radsol (min, max)' & |
1343 |
& , MINVAL(radsol(1:knon)), MAXVAL(radsol(1:knon)) |
1344 |
!!CALL flush(6) |
1345 |
ENDIF |
1346 |
|
1347 |
if (size(coastalflow) /= knon .AND. nisurf == is_ter) then |
1348 |
write(*, *)'Bizarre, le nombre de points continentaux' |
1349 |
write(*, *)'a change entre deux appels. J''arrete ...' |
1350 |
abort_message='Pb run_off' |
1351 |
call abort_gcm(modname, abort_message, 1) |
1352 |
endif |
1353 |
|
1354 |
! Traitement neige et humidite du sol |
1355 |
|
1356 |
!!$ WRITE(*, *)'test calcul_flux, surface ', nisurf |
1357 |
!!PB test |
1358 |
!!$ if (nisurf == is_oce) then |
1359 |
!!$ snow = 0. |
1360 |
!!$ qsol = max_eau_sol |
1361 |
!!$ else |
1362 |
!!$ where (precip_snow > 0.) snow = snow + (precip_snow * dtime) |
1363 |
!!$ where (snow > epsilon(snow)) snow = max(0.0, snow - (evap * dtime)) |
1364 |
!!$! snow = max(0.0, snow + (precip_snow - evap) * dtime) |
1365 |
!!$ where (precip_rain > 0.) qsol = qsol + (precip_rain - evap) * dtime |
1366 |
!!$ endif |
1367 |
!!$ IF (nisurf /= is_ter) qsol = max_eau_sol |
1368 |
|
1369 |
|
1370 |
! Initialisation |
1371 |
|
1372 |
evap = 0. |
1373 |
fluxsens=0. |
1374 |
fluxlat=0. |
1375 |
dflux_s = 0. |
1376 |
dflux_l = 0. |
1377 |
|
1378 |
! zx_qs = qsat en kg/kg |
1379 |
|
1380 |
DO i = 1, knon |
1381 |
zx_pkh(i) = (ps(i)/ps(i))**RKAPPA |
1382 |
IF (thermcep) THEN |
1383 |
zdelta=MAX(0., SIGN(1., rtt-tsurf(i))) |
1384 |
zcvm5 = R5LES*RLVTT*(1.-zdelta) + R5IES*RLSTT*zdelta |
1385 |
zcvm5 = zcvm5 / RCPD / (1.0+RVTMP2*q1lay(i)) |
1386 |
zx_qs= r2es * FOEEW(tsurf(i), zdelta)/ps(i) |
1387 |
zx_qs=MIN(0.5, zx_qs) |
1388 |
zcor=1./(1.-retv*zx_qs) |
1389 |
zx_qs=zx_qs*zcor |
1390 |
zx_dq_s_dh = FOEDE(tsurf(i), zdelta, zcvm5, zx_qs, zcor) & |
1391 |
& /RLVTT / zx_pkh(i) |
1392 |
ELSE |
1393 |
IF (tsurf(i).LT.t_coup) THEN |
1394 |
zx_qs = qsats(tsurf(i)) / ps(i) |
1395 |
zx_dq_s_dh = dqsats(tsurf(i), zx_qs)/RLVTT & |
1396 |
& / zx_pkh(i) |
1397 |
ELSE |
1398 |
zx_qs = qsatl(tsurf(i)) / ps(i) |
1399 |
zx_dq_s_dh = dqsatl(tsurf(i), zx_qs)/RLVTT & |
1400 |
& / zx_pkh(i) |
1401 |
ENDIF |
1402 |
ENDIF |
1403 |
zx_dq_s_dt(i) = RCPD * zx_pkh(i) * zx_dq_s_dh |
1404 |
zx_qsat(i) = zx_qs |
1405 |
zx_coef(i) = coef1lay(i) & |
1406 |
& * (1.0+SQRT(u1lay(i)**2+v1lay(i)**2)) & |
1407 |
& * p1lay(i)/(RD*t1lay(i)) |
1408 |
|
1409 |
ENDDO |
1410 |
|
1411 |
! === Calcul de la temperature de surface === |
1412 |
|
1413 |
! zx_sl = chaleur latente d'evaporation ou de sublimation |
1414 |
|
1415 |
do i = 1, knon |
1416 |
zx_sl(i) = RLVTT |
1417 |
if (tsurf(i) .LT. RTT) zx_sl(i) = RLSTT |
1418 |
zx_k1(i) = zx_coef(i) |
1419 |
enddo |
1420 |
|
1421 |
do i = 1, knon |
1422 |
! Q |
1423 |
zx_oq(i) = 1. - (beta(i) * zx_k1(i) * peqBcoef(i) * dtime) |
1424 |
zx_mq(i) = beta(i) * zx_k1(i) * & |
1425 |
& (peqAcoef(i) - zx_qsat(i) & |
1426 |
& + zx_dq_s_dt(i) * tsurf(i)) & |
1427 |
& / zx_oq(i) |
1428 |
zx_nq(i) = beta(i) * zx_k1(i) * (-1. * zx_dq_s_dt(i)) & |
1429 |
& / zx_oq(i) |
1430 |
|
1431 |
! H |
1432 |
zx_oh(i) = 1. - (zx_k1(i) * petBcoef(i) * dtime) |
1433 |
zx_mh(i) = zx_k1(i) * petAcoef(i) / zx_oh(i) |
1434 |
zx_nh(i) = - (zx_k1(i) * RCPD * zx_pkh(i))/ zx_oh(i) |
1435 |
|
1436 |
! Tsurface |
1437 |
tsurf_new(i) = (tsurf(i) + cal(i)/(RCPD * zx_pkh(i)) * dtime * & |
1438 |
& (radsol(i) + zx_mh(i) + zx_sl(i) * zx_mq(i)) & |
1439 |
& + dif_grnd(i) * t_grnd * dtime)/ & |
1440 |
& ( 1. - dtime * cal(i)/(RCPD * zx_pkh(i)) * ( & |
1441 |
& zx_nh(i) + zx_sl(i) * zx_nq(i)) & |
1442 |
& + dtime * dif_grnd(i)) |
1443 |
|
1444 |
|
1445 |
! Y'a-t-il fonte de neige? |
1446 |
|
1447 |
! fonte_neige = (nisurf /= is_oce) .AND. & |
1448 |
! & (snow(i) > epsfra .OR. nisurf == is_sic .OR. nisurf == is_lic) & |
1449 |
! & .AND. (tsurf_new(i) >= RTT) |
1450 |
! if (fonte_neige) tsurf_new(i) = RTT |
1451 |
d_ts(i) = tsurf_new(i) - tsurf(i) |
1452 |
! zx_h_ts(i) = tsurf_new(i) * RCPD * zx_pkh(i) |
1453 |
! zx_q_0(i) = zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
1454 |
!== flux_q est le flux de vapeur d'eau: kg/(m**2 s) positive vers bas |
1455 |
!== flux_t est le flux de cpt (energie sensible): j/(m**2 s) |
1456 |
evap(i) = - zx_mq(i) - zx_nq(i) * tsurf_new(i) |
1457 |
fluxlat(i) = - evap(i) * zx_sl(i) |
1458 |
fluxsens(i) = zx_mh(i) + zx_nh(i) * tsurf_new(i) |
1459 |
! Derives des flux dF/dTs (W m-2 K-1): |
1460 |
dflux_s(i) = zx_nh(i) |
1461 |
dflux_l(i) = (zx_sl(i) * zx_nq(i)) |
1462 |
! Nouvelle valeure de l'humidite au dessus du sol |
1463 |
qsat_new=zx_qsat(i) + zx_dq_s_dt(i) * d_ts(i) |
1464 |
q1_new = peqAcoef(i) - peqBcoef(i)*evap(i)*dtime |
1465 |
qsurf(i)=q1_new*(1.-beta(i)) + beta(i)*qsat_new |
1466 |
ENDDO |
1467 |
|
1468 |
END SUBROUTINE calcul_fluxs |
1469 |
|
1470 |
!************************ |
1471 |
|
1472 |
SUBROUTINE fonte_neige( klon, knon, nisurf, dtime, & |
1473 |
& tsurf, p1lay, cal, beta, coef1lay, ps, & |
1474 |
& precip_rain, precip_snow, snow, qsol, & |
1475 |
& radsol, dif_grnd, t1lay, q1lay, u1lay, v1lay, & |
1476 |
& petAcoef, peqAcoef, petBcoef, peqBcoef, & |
1477 |
& tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l, & |
1478 |
& fqcalving, ffonte, run_off_lic_0) |
1479 |
|
1480 |
! Routine de traitement de la fonte de la neige dans le cas du traitement |
1481 |
! de sol simplifié |
1482 |
|
1483 |
! LF 03/2001 |
1484 |
! input: |
1485 |
! knon nombre de points a traiter |
1486 |
! nisurf surface a traiter |
1487 |
! tsurf temperature de surface |
1488 |
! p1lay pression 1er niveau (milieu de couche) |
1489 |
! cal capacite calorifique du sol |
1490 |
! beta evap reelle |
1491 |
! coef1lay coefficient d'echange |
1492 |
! ps pression au sol |
1493 |
! precip_rain precipitations liquides |
1494 |
! precip_snow precipitations solides |
1495 |
! snow champs hauteur de neige |
1496 |
! qsol hauteur d'eau contenu dans le sol |
1497 |
! runoff runoff en cas de trop plein |
1498 |
! petAcoef coeff. A de la resolution de la CL pour t |
1499 |
! peqAcoef coeff. A de la resolution de la CL pour q |
1500 |
! petBcoef coeff. B de la resolution de la CL pour t |
1501 |
! peqBcoef coeff. B de la resolution de la CL pour q |
1502 |
! radsol rayonnement net aus sol (LW + SW) |
1503 |
! dif_grnd coeff. diffusion vers le sol profond |
1504 |
|
1505 |
! output: |
1506 |
! tsurf_new temperature au sol |
1507 |
! fluxsens flux de chaleur sensible |
1508 |
! fluxlat flux de chaleur latente |
1509 |
! dflux_s derivee du flux de chaleur sensible / Ts |
1510 |
! dflux_l derivee du flux de chaleur latente / Ts |
1511 |
! in/out: |
1512 |
! run_off_lic_0 run off glacier du pas de temps précedent |
1513 |
|
1514 |
|
1515 |
use indicesol |
1516 |
use YOMCST |
1517 |
use yoethf |
1518 |
use fcttre |
1519 |
!IM cf JLD |
1520 |
|
1521 |
! Parametres d'entree |
1522 |
integer, intent(IN) :: knon, nisurf, klon |
1523 |
real , intent(IN) :: dtime |
1524 |
real, dimension(klon), intent(IN) :: petAcoef, peqAcoef |
1525 |
real, dimension(klon), intent(IN) :: petBcoef, peqBcoef |
1526 |
real, dimension(klon), intent(IN) :: ps, q1lay |
1527 |
real, dimension(klon), intent(IN) :: tsurf, p1lay, cal, beta, coef1lay |
1528 |
real, dimension(klon), intent(IN) :: precip_rain, precip_snow |
1529 |
real, dimension(klon), intent(IN) :: radsol, dif_grnd |
1530 |
real, dimension(klon), intent(IN) :: t1lay, u1lay, v1lay |
1531 |
real, dimension(klon), intent(INOUT) :: snow, qsol |
1532 |
|
1533 |
! Parametres sorties |
1534 |
real, dimension(klon), intent(INOUT):: tsurf_new, evap, fluxsens, fluxlat |
1535 |
real, dimension(klon), intent(INOUT):: dflux_s, dflux_l |
1536 |
! Flux thermique utiliser pour fondre la neige |
1537 |
real, dimension(klon), intent(INOUT):: ffonte |
1538 |
! Flux d'eau "perdue" par la surface et necessaire pour que limiter la |
1539 |
! hauteur de neige, en kg/m2/s |
1540 |
real, dimension(klon), intent(INOUT):: fqcalving |
1541 |
real, dimension(klon), intent(INOUT):: run_off_lic_0 |
1542 |
! Variables locales |
1543 |
! Masse maximum de neige (kg/m2). Au dessus de ce seuil, la neige |
1544 |
! en exces "s'ecoule" (calving) |
1545 |
! real, parameter :: snow_max=1. |
1546 |
!IM cf JLD/GK |
1547 |
real, parameter :: snow_max=3000. |
1548 |
integer :: i |
1549 |
real, dimension(klon) :: zx_mh, zx_nh, zx_oh |
1550 |
real, dimension(klon) :: zx_mq, zx_nq, zx_oq |
1551 |
real, dimension(klon) :: zx_pkh, zx_dq_s_dt, zx_qsat, zx_coef |
1552 |
real, dimension(klon) :: zx_sl, zx_k1 |
1553 |
real, dimension(klon) :: zx_q_0 , d_ts |
1554 |
real :: zdelta, zcvm5, zx_qs, zcor, zx_dq_s_dh |
1555 |
real :: bilan_f, fq_fonte |
1556 |
REAL :: subli, fsno |
1557 |
REAL, DIMENSION(klon) :: bil_eau_s, snow_evap |
1558 |
real, parameter :: t_grnd = 271.35, t_coup = 273.15 |
1559 |
!! PB temporaire en attendant mieux pour le modele de neige |
1560 |
! REAL, parameter :: chasno = RLMLT/(2.3867E+06*0.15) |
1561 |
REAL, parameter :: chasno = 3.334E+05/(2.3867E+06*0.15) |
1562 |
!IM cf JLD/ GKtest |
1563 |
REAL, parameter :: chaice = 3.334E+05/(2.3867E+06*0.15) |
1564 |
! fin GKtest |
1565 |
|
1566 |
logical, save :: check = .FALSE. |
1567 |
character (len = 20) :: modname = 'fonte_neige' |
1568 |
logical, save :: neige_fond = .false. |
1569 |
real, save :: max_eau_sol = 150.0 |
1570 |
character (len = 80) :: abort_message |
1571 |
logical, save :: first = .true., second=.false. |
1572 |
real :: coeff_rel |
1573 |
|
1574 |
if (check) write(*, *)'Entree ', modname, ' surface = ', nisurf |
1575 |
|
1576 |
! Initialisations |
1577 |
coeff_rel = dtime/(tau_calv * rday) |
1578 |
bil_eau_s = 0. |
1579 |
DO i = 1, knon |
1580 |
zx_pkh(i) = (ps(i)/ps(i))**RKAPPA |
1581 |
IF (thermcep) THEN |
1582 |
zdelta=MAX(0., SIGN(1., rtt-tsurf(i))) |
1583 |
zcvm5 = R5LES*RLVTT*(1.-zdelta) + R5IES*RLSTT*zdelta |
1584 |
zcvm5 = zcvm5 / RCPD / (1.0+RVTMP2*q1lay(i)) |
1585 |
zx_qs= r2es * FOEEW(tsurf(i), zdelta)/ps(i) |
1586 |
zx_qs=MIN(0.5, zx_qs) |
1587 |
zcor=1./(1.-retv*zx_qs) |
1588 |
zx_qs=zx_qs*zcor |
1589 |
zx_dq_s_dh = FOEDE(tsurf(i), zdelta, zcvm5, zx_qs, zcor) & |
1590 |
& /RLVTT / zx_pkh(i) |
1591 |
ELSE |
1592 |
IF (tsurf(i).LT.t_coup) THEN |
1593 |
zx_qs = qsats(tsurf(i)) / ps(i) |
1594 |
zx_dq_s_dh = dqsats(tsurf(i), zx_qs)/RLVTT & |
1595 |
& / zx_pkh(i) |
1596 |
ELSE |
1597 |
zx_qs = qsatl(tsurf(i)) / ps(i) |
1598 |
zx_dq_s_dh = dqsatl(tsurf(i), zx_qs)/RLVTT & |
1599 |
& / zx_pkh(i) |
1600 |
ENDIF |
1601 |
ENDIF |
1602 |
zx_dq_s_dt(i) = RCPD * zx_pkh(i) * zx_dq_s_dh |
1603 |
zx_qsat(i) = zx_qs |
1604 |
zx_coef(i) = coef1lay(i) & |
1605 |
& * (1.0+SQRT(u1lay(i)**2+v1lay(i)**2)) & |
1606 |
& * p1lay(i)/(RD*t1lay(i)) |
1607 |
ENDDO |
1608 |
|
1609 |
! === Calcul de la temperature de surface === |
1610 |
|
1611 |
! zx_sl = chaleur latente d'evaporation ou de sublimation |
1612 |
|
1613 |
do i = 1, knon |
1614 |
zx_sl(i) = RLVTT |
1615 |
if (tsurf(i) .LT. RTT) zx_sl(i) = RLSTT |
1616 |
zx_k1(i) = zx_coef(i) |
1617 |
enddo |
1618 |
|
1619 |
do i = 1, knon |
1620 |
! Q |
1621 |
zx_oq(i) = 1. - (beta(i) * zx_k1(i) * peqBcoef(i) * dtime) |
1622 |
zx_mq(i) = beta(i) * zx_k1(i) * & |
1623 |
& (peqAcoef(i) - zx_qsat(i) & |
1624 |
& + zx_dq_s_dt(i) * tsurf(i)) & |
1625 |
& / zx_oq(i) |
1626 |
zx_nq(i) = beta(i) * zx_k1(i) * (-1. * zx_dq_s_dt(i)) & |
1627 |
& / zx_oq(i) |
1628 |
|
1629 |
! H |
1630 |
zx_oh(i) = 1. - (zx_k1(i) * petBcoef(i) * dtime) |
1631 |
zx_mh(i) = zx_k1(i) * petAcoef(i) / zx_oh(i) |
1632 |
zx_nh(i) = - (zx_k1(i) * RCPD * zx_pkh(i))/ zx_oh(i) |
1633 |
enddo |
1634 |
|
1635 |
WHERE (precip_snow > 0.) snow = snow + (precip_snow * dtime) |
1636 |
snow_evap = 0. |
1637 |
WHERE (evap > 0. ) |
1638 |
snow_evap = MIN (snow / dtime, evap) |
1639 |
snow = snow - snow_evap * dtime |
1640 |
snow = MAX(0.0, snow) |
1641 |
end where |
1642 |
|
1643 |
! bil_eau_s = bil_eau_s + (precip_rain * dtime) - (evap - snow_evap) * dtime |
1644 |
bil_eau_s = (precip_rain * dtime) - (evap - snow_evap) * dtime |
1645 |
|
1646 |
|
1647 |
! Y'a-t-il fonte de neige? |
1648 |
|
1649 |
ffonte=0. |
1650 |
do i = 1, knon |
1651 |
neige_fond = ((snow(i) > epsfra .OR. nisurf == is_sic .OR. nisurf == is_lic) & |
1652 |
& .AND. tsurf_new(i) >= RTT) |
1653 |
if (neige_fond) then |
1654 |
fq_fonte = MIN( MAX((tsurf_new(i)-RTT )/chasno, 0.0), snow(i)) |
1655 |
ffonte(i) = fq_fonte * RLMLT/dtime |
1656 |
snow(i) = max(0., snow(i) - fq_fonte) |
1657 |
bil_eau_s(i) = bil_eau_s(i) + fq_fonte |
1658 |
tsurf_new(i) = tsurf_new(i) - fq_fonte * chasno |
1659 |
!IM cf JLD OK |
1660 |
!IM cf JLD/ GKtest fonte aussi pour la glace |
1661 |
IF (nisurf == is_sic .OR. nisurf == is_lic ) THEN |
1662 |
fq_fonte = MAX((tsurf_new(i)-RTT )/chaice, 0.0) |
1663 |
ffonte(i) = ffonte(i) + fq_fonte * RLMLT/dtime |
1664 |
bil_eau_s(i) = bil_eau_s(i) + fq_fonte |
1665 |
tsurf_new(i) = RTT |
1666 |
ENDIF |
1667 |
d_ts(i) = tsurf_new(i) - tsurf(i) |
1668 |
endif |
1669 |
|
1670 |
! s'il y a une hauteur trop importante de neige, elle s'coule |
1671 |
fqcalving(i) = max(0., snow(i) - snow_max)/dtime |
1672 |
snow(i)=min(snow(i), snow_max) |
1673 |
|
1674 |
IF (nisurf == is_ter) then |
1675 |
qsol(i) = qsol(i) + bil_eau_s(i) |
1676 |
run_off(i) = run_off(i) + MAX(qsol(i) - max_eau_sol, 0.0) |
1677 |
qsol(i) = MIN(qsol(i), max_eau_sol) |
1678 |
else if (nisurf == is_lic) then |
1679 |
run_off_lic(i) = (coeff_rel * fqcalving(i)) + & |
1680 |
& (1. - coeff_rel) * run_off_lic_0(i) |
1681 |
run_off_lic_0(i) = run_off_lic(i) |
1682 |
run_off_lic(i) = run_off_lic(i) + bil_eau_s(i)/dtime |
1683 |
endif |
1684 |
enddo |
1685 |
|
1686 |
END SUBROUTINE fonte_neige |
1687 |
|
1688 |
END MODULE interface_surf |