phylmd/Interface_surf/interfsurf_hq.f

module interfsurf_hq_m

  implicit none

contains

  SUBROUTINE interfsurf_hq(dtime, julien, rmu0, nisurf, knindex, debut, &
       tsoil, qsol, u1_lay, v1_lay, temp_air, spechum, tq_cdrag, petAcoef, &
       peqAcoef, petBcoef, peqBcoef, precip_rain, precip_snow, rugos, rugoro, &
       snow, qsurf, ts, p1lay, ps, radsol, evap, flux_t, fluxlat, dflux_l, &
       dflux_s, tsurf_new, albedo, z0_new, pctsrf_new_sic, agesno, fqcalving, &
       ffonte, run_off_lic_0)

    ! Cette routine sert d'aiguillage entre l'atmosph\`ere et la surface
    ! en g\'en\'eral (sols continentaux, oc\'eans, glaces) pour les flux de
    ! chaleur et d'humidit\'e.

    ! Laurent Fairhead, February 2000

    USE abort_gcm_m, ONLY: abort_gcm
    use alboc_cd_m, only: alboc_cd
    USE albsno_m, ONLY: albsno
    use calbeta_m, only: calbeta
    USE calcul_fluxs_m, ONLY: calcul_fluxs
    USE dimphy, ONLY: klon
    USE fonte_neige_m, ONLY: fonte_neige
    USE indicesol, ONLY: epsfra, is_lic, is_oce, is_sic, is_ter
    USE interface_surf, ONLY: conf_interface
    USE interfsur_lim_m, ONLY: interfsur_lim
    use read_sst_m, only: read_sst
    use soil_m, only: soil
    USE suphec_m, ONLY: rcpd, rtt

    real, intent(IN):: dtime ! pas de temps de la physique (en s)
    integer, intent(IN):: julien ! jour dans l'annee en cours
    real, intent(IN):: rmu0(klon) ! cosinus de l'angle solaire zenithal
    integer, intent(IN):: nisurf ! index de la surface a traiter

    integer, intent(in):: knindex(:) ! (knon)
    ! index des points de la surface a traiter

    logical, intent(IN):: debut ! 1er appel a la physique
    ! (si false calcul simplifie des fluxs sur les continents)

    REAL, intent(inout):: tsoil(:, :) ! (knon, nsoilmx)

    REAL, intent(INOUT):: qsol(:) ! (knon)
    ! column-density of water in soil, in kg m-2

    real, intent(IN):: u1_lay(:), v1_lay(:) ! (knon) vitesse 1ere couche

    real, dimension(klon), intent(IN):: temp_air, spechum
    ! temp_air temperature de l'air 1ere couche
    ! spechum humidite specifique 1ere couche
    real, intent(IN):: tq_cdrag(:) ! (knon) coefficient d'echange

    real, dimension(klon), intent(IN):: petAcoef, peqAcoef
    ! coefficients A de la r\'esolution de la couche limite pour t et q

    real, dimension(klon), intent(IN):: petBcoef, peqBcoef
    ! coefficients B de la r\'esolution de la couche limite pour t et q

    real, intent(IN):: precip_rain(klon)
    ! precipitation, liquid water mass flux (kg / m2 / s), positive down

    real, intent(IN):: precip_snow(klon)
    ! precipitation, solid water mass flux (kg / m2 / s), positive down

    real, intent(IN):: rugos(klon) ! rugosite
    real, intent(IN):: rugoro(klon) ! rugosite orographique
    real, intent(INOUT):: snow(:) ! (knon)
    real, intent(INOUT):: qsurf(klon)
    real, intent(IN):: ts(:) ! (knon) temp\'erature de surface
    real, intent(IN):: p1lay(klon) ! pression 1er niveau (milieu de couche)
    real, dimension(klon), intent(IN):: ps ! pression au sol
    REAL, INTENT(IN):: radsol(:) ! (knon) rayonnement net au sol (LW + SW)
    real, intent(OUT):: evap(:) ! (knon) evaporation totale

    real, intent(OUT):: flux_t(:) ! (knon) flux de chaleur sensible
    ! (Cp T) à la surface, positif vers le bas, W / m2

    real, intent(OUT):: fluxlat(:) ! (knon) flux de chaleur latente
    real, intent(OUT):: dflux_l(:), dflux_s(:) ! (knon)
    real, intent(OUT):: tsurf_new(:) ! (knon) temp\'erature au sol
    real, intent(OUT):: albedo(:) ! (knon) albedo
    real, intent(OUT):: z0_new(klon) ! surface roughness

    real, intent(in):: pctsrf_new_sic(:) ! (klon) 
    ! nouvelle repartition des surfaces

    real, intent(INOUT):: agesno(:) ! (knon)

    ! Flux d'eau "perdue" par la surface et n\'ecessaire pour limiter la
    ! hauteur de neige, en kg / m2 / s
    real, dimension(klon), intent(INOUT):: fqcalving

    ! Flux thermique utiliser pour fondre la neige
    real, dimension(klon), intent(INOUT):: ffonte

    real, dimension(klon), intent(INOUT):: run_off_lic_0
    ! run_off_lic_0 runoff glacier du pas de temps precedent

    ! Local:
    integer knon ! nombre de points de la surface a traiter
    REAL soilcap(size(knindex)) ! (knon)
    REAL soilflux(size(knindex)) ! (knon)
    logical:: first_call = .true.
    integer ii
    real cal(size(knindex)) ! (knon)
    real beta(size(knindex)) ! (knon) evap reelle
    real dif_grnd(klon), capsol(klon)
    real tsurf(size(knindex)) ! (knon)
    real alb_neig(size(knindex)) ! (knon)
    real zfra(size(knindex)) ! (knon)
    REAL, PARAMETER:: fmagic = 1. ! facteur magique pour r\'egler l'alb\'edo

    !-------------------------------------------------------------

    knon = size(knindex)

    ! On doit commencer par appeler les schemas de surfaces continentales
    ! car l'ocean a besoin du ruissellement qui est y calcule

    if (first_call) then
       call conf_interface

       if (nisurf /= is_ter .and. klon > 1) then
          print *, ' nisurf = ', nisurf, ' /= is_ter = ', is_ter
          print *, 'or on doit commencer par les surfaces continentales'
          call abort_gcm("interfsurf_hq", &
               'On doit commencer par les surfaces continentales')
       endif

       if (is_oce > is_sic) then
          print *, 'is_oce = ', is_oce, '> is_sic = ', is_sic
          call abort_gcm("interfsurf_hq", &
               "L'ocean doit etre traite avant la banquise")
       endif

       first_call = .false.
    endif

    ! Initialisations diverses

    ffonte(1:knon) = 0.
    fqcalving(1:knon) = 0.
    dif_grnd = 999999.
    capsol = 999999.
    z0_new = 999999.

    ! Aiguillage vers les differents schemas de surface

    select case (nisurf)
    case (is_ter)
       ! Surface "terre", appel \`a l'interface avec les sols continentaux

       ! Calcul age de la neige

       ! Read albedo from the file containing boundary conditions then
       ! add the albedo of snow:

       call interfsur_lim(dtime, julien, knindex, debut, albedo, z0_new)

       ! Calcul de snow et qsurf, hydrologie adapt\'ee
       CALL calbeta(is_ter, snow, qsol, beta, capsol(:knon), dif_grnd(:knon))

       CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux)
       cal = RCPD / soilcap

       CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, &
            ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), &
            temp_air(:knon), spechum(:knon), u1_lay, v1_lay, &
            petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
            peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
       CALL fonte_neige(is_ter, dtime, precip_rain(:knon), &
            precip_snow(:knon), snow, qsol, tsurf_new, evap, &
            fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))

       call albsno(dtime, agesno, alb_neig, precip_snow(:knon))
       where (snow < 0.0001) agesno = 0.
       zfra = max(0., min(1., snow / (snow + 10.)))
       albedo = alb_neig * zfra + albedo * (1. - zfra)
       z0_new = sqrt(z0_new**2 + rugoro**2)
    case (is_oce)
       ! Surface "oc\'ean", appel \`a l'interface avec l'oc\'ean

       call read_sst(julien, knindex, tsurf)
       cal = 0.
       beta = 1.
       dif_grnd = 0.
       call calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
            tq_cdrag, ps(:knon), qsurf(:knon), radsol, &
            dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, &
            v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
            peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
       agesno = 0.
       albedo = alboc_cd(rmu0(knindex)) * fmagic
       z0_new = sqrt(rugos**2 + rugoro**2)
    case (is_sic)
       ! Surface "glace de mer" appel a l'interface avec l'ocean

       DO ii = 1, knon
          IF (pctsrf_new_sic(knindex(ii)) < EPSFRA) then
             snow(ii) = 0.
             tsurf_new(ii) = RTT - 1.8
             tsoil(ii, :) = RTT - 1.8
          else
             tsurf_new(ii) = ts(ii)
          endif
       enddo

       CALL calbeta(is_sic, snow, qsol, beta, capsol(:knon), dif_grnd(:knon))
       CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, soilflux)
       cal = RCPD / soilcap
       dif_grnd = 0.
       tsurf = tsurf_new
       beta = 1.

       CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
            tq_cdrag, ps(:knon), qsurf(:knon), radsol + soilflux, &
            dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, &
            v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
            peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
       CALL fonte_neige(is_sic, dtime, precip_rain(:knon), &
            precip_snow(:knon), snow, qsol, tsurf_new, evap, &
            fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))

       ! Compute the albedo:

       CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
       WHERE (snow < 0.0001) agesno = 0.
       zfra = MAX(0., MIN(1., snow / (snow + 10.)))
       albedo = alb_neig * zfra + 0.6 * (1. - zfra)

       z0_new = SQRT(0.002**2 + rugoro**2)
    case (is_lic)
       ! Surface "glacier continentaux" appel a l'interface avec le sol

       CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux)
       cal = RCPD / soilcap
       beta = 1.
       dif_grnd = 0.

       call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, &
            ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), &
            temp_air(:knon), spechum(:knon), u1_lay, v1_lay, &
            petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
            peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
       call fonte_neige(is_lic, dtime, precip_rain(:knon), &
            precip_snow(:knon), snow, qsol, tsurf_new, evap, &
            fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))

       ! calcul albedo
       CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
       WHERE (snow < 0.0001) agesno = 0.
       albedo = 0.77

       ! Rugosite
       z0_new = rugoro
    case default
       print *, 'Index surface = ', nisurf
       call abort_gcm("interfsurf_hq", 'Index surface non valable')
    end select

  END SUBROUTINE interfsurf_hq

end module interfsurf_hq_m
1	module interfsurf_hq_m
2
3	implicit none
4
5	contains
6
7	SUBROUTINE interfsurf_hq(dtime, julien, rmu0, nisurf, knindex, debut, &
8	tsoil, qsol, u1_lay, v1_lay, temp_air, spechum, tq_cdrag, petAcoef, &
9	peqAcoef, petBcoef, peqBcoef, precip_rain, precip_snow, rugos, rugoro, &
10	snow, qsurf, ts, p1lay, ps, radsol, evap, flux_t, fluxlat, dflux_l, &
11	dflux_s, tsurf_new, albedo, z0_new, pctsrf_new_sic, agesno, fqcalving, &
12	ffonte, run_off_lic_0)
13
14	! Cette routine sert d'aiguillage entre l'atmosph\`ere et la surface
15	! en g\'en\'eral (sols continentaux, oc\'eans, glaces) pour les flux de
16	! chaleur et d'humidit\'e.
17
18	! Laurent Fairhead, February 2000
19
20	USE abort_gcm_m, ONLY: abort_gcm
21	use alboc_cd_m, only: alboc_cd
22	USE albsno_m, ONLY: albsno
23	use calbeta_m, only: calbeta
24	USE calcul_fluxs_m, ONLY: calcul_fluxs
25	USE dimphy, ONLY: klon
26	USE fonte_neige_m, ONLY: fonte_neige
27	USE indicesol, ONLY: epsfra, is_lic, is_oce, is_sic, is_ter
28	USE interface_surf, ONLY: conf_interface
29	USE interfsur_lim_m, ONLY: interfsur_lim
30	use read_sst_m, only: read_sst
31	use soil_m, only: soil
32	USE suphec_m, ONLY: rcpd, rtt
33
34	real, intent(IN):: dtime ! pas de temps de la physique (en s)
35	integer, intent(IN):: julien ! jour dans l'annee en cours
36	real, intent(IN):: rmu0(klon) ! cosinus de l'angle solaire zenithal
37	integer, intent(IN):: nisurf ! index de la surface a traiter
38
39	integer, intent(in):: knindex(:) ! (knon)
40	! index des points de la surface a traiter
41
42	logical, intent(IN):: debut ! 1er appel a la physique
43	! (si false calcul simplifie des fluxs sur les continents)
44
45	REAL, intent(inout):: tsoil(:, :) ! (knon, nsoilmx)
46
47	REAL, intent(INOUT):: qsol(:) ! (knon)
48	! column-density of water in soil, in kg m-2
49
50	real, intent(IN):: u1_lay(:), v1_lay(:) ! (knon) vitesse 1ere couche
51
52	real, dimension(klon), intent(IN):: temp_air, spechum
53	! temp_air temperature de l'air 1ere couche
54	! spechum humidite specifique 1ere couche
55	real, intent(IN):: tq_cdrag(:) ! (knon) coefficient d'echange
56
57	real, dimension(klon), intent(IN):: petAcoef, peqAcoef
58	! coefficients A de la r\'esolution de la couche limite pour t et q
59
60	real, dimension(klon), intent(IN):: petBcoef, peqBcoef
61	! coefficients B de la r\'esolution de la couche limite pour t et q
62
63	real, intent(IN):: precip_rain(klon)
64	! precipitation, liquid water mass flux (kg / m2 / s), positive down
65
66	real, intent(IN):: precip_snow(klon)
67	! precipitation, solid water mass flux (kg / m2 / s), positive down
68
69	real, intent(IN):: rugos(klon) ! rugosite
70	real, intent(IN):: rugoro(klon) ! rugosite orographique
71	real, intent(INOUT):: snow(:) ! (knon)
72	real, intent(INOUT):: qsurf(klon)
73	real, intent(IN):: ts(:) ! (knon) temp\'erature de surface
74	real, intent(IN):: p1lay(klon) ! pression 1er niveau (milieu de couche)
75	real, dimension(klon), intent(IN):: ps ! pression au sol
76	REAL, INTENT(IN):: radsol(:) ! (knon) rayonnement net au sol (LW + SW)
77	real, intent(OUT):: evap(:) ! (knon) evaporation totale
78
79	real, intent(OUT):: flux_t(:) ! (knon) flux de chaleur sensible
80	! (Cp T) à la surface, positif vers le bas, W / m2
81
82	real, intent(OUT):: fluxlat(:) ! (knon) flux de chaleur latente
83	real, intent(OUT):: dflux_l(:), dflux_s(:) ! (knon)
84	real, intent(OUT):: tsurf_new(:) ! (knon) temp\'erature au sol
85	real, intent(OUT):: albedo(:) ! (knon) albedo
86	real, intent(OUT):: z0_new(klon) ! surface roughness
87
88	real, intent(in):: pctsrf_new_sic(:) ! (klon)
89	! nouvelle repartition des surfaces
90
91	real, intent(INOUT):: agesno(:) ! (knon)
92
93	! Flux d'eau "perdue" par la surface et n\'ecessaire pour limiter la
94	! hauteur de neige, en kg / m2 / s
95	real, dimension(klon), intent(INOUT):: fqcalving
96
97	! Flux thermique utiliser pour fondre la neige
98	real, dimension(klon), intent(INOUT):: ffonte
99
100	real, dimension(klon), intent(INOUT):: run_off_lic_0
101	! run_off_lic_0 runoff glacier du pas de temps precedent
102
103	! Local:
104	integer knon ! nombre de points de la surface a traiter
105	REAL soilcap(size(knindex)) ! (knon)
106	REAL soilflux(size(knindex)) ! (knon)
107	logical:: first_call = .true.
108	integer ii
109	real cal(size(knindex)) ! (knon)
110	real beta(size(knindex)) ! (knon) evap reelle
111	real dif_grnd(klon), capsol(klon)
112	real tsurf(size(knindex)) ! (knon)
113	real alb_neig(size(knindex)) ! (knon)
114	real zfra(size(knindex)) ! (knon)
115	REAL, PARAMETER:: fmagic = 1. ! facteur magique pour r\'egler l'alb\'edo
116
117	!-------------------------------------------------------------
118
119	knon = size(knindex)
120
121	! On doit commencer par appeler les schemas de surfaces continentales
122	! car l'ocean a besoin du ruissellement qui est y calcule
123
124	if (first_call) then
125	call conf_interface
126
127	if (nisurf /= is_ter .and. klon > 1) then
128	print *, ' nisurf = ', nisurf, ' /= is_ter = ', is_ter
129	print *, 'or on doit commencer par les surfaces continentales'
130	call abort_gcm("interfsurf_hq", &
131	'On doit commencer par les surfaces continentales')
132	endif
133
134	if (is_oce > is_sic) then
135	print *, 'is_oce = ', is_oce, '> is_sic = ', is_sic
136	call abort_gcm("interfsurf_hq", &
137	"L'ocean doit etre traite avant la banquise")
138	endif
139
140	first_call = .false.
141	endif
142
143	! Initialisations diverses
144
145	ffonte(1:knon) = 0.
146	fqcalving(1:knon) = 0.
147	dif_grnd = 999999.
148	capsol = 999999.
149	z0_new = 999999.
150
151	! Aiguillage vers les differents schemas de surface
152
153	select case (nisurf)
154	case (is_ter)
155	! Surface "terre", appel \`a l'interface avec les sols continentaux
156
157	! Calcul age de la neige
158
159	! Read albedo from the file containing boundary conditions then
160	! add the albedo of snow:
161
162	call interfsur_lim(dtime, julien, knindex, debut, albedo, z0_new)
163
164	! Calcul de snow et qsurf, hydrologie adapt\'ee
165	CALL calbeta(is_ter, snow, qsol, beta, capsol(:knon), dif_grnd(:knon))
166
167	CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux)
168	cal = RCPD / soilcap
169
170	CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, &
171	ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), &
172	temp_air(:knon), spechum(:knon), u1_lay, v1_lay, &
173	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
174	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
175	CALL fonte_neige(is_ter, dtime, precip_rain(:knon), &
176	precip_snow(:knon), snow, qsol, tsurf_new, evap, &
177	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
178
179	call albsno(dtime, agesno, alb_neig, precip_snow(:knon))
180	where (snow < 0.0001) agesno = 0.
181	zfra = max(0., min(1., snow / (snow + 10.)))
182	albedo = alb_neig * zfra + albedo * (1. - zfra)
183	z0_new = sqrt(z0_new2 + rugoro2)
184	case (is_oce)
185	! Surface "oc\'ean", appel \`a l'interface avec l'oc\'ean
186
187	call read_sst(julien, knindex, tsurf)
188	cal = 0.
189	beta = 1.
190	dif_grnd = 0.
191	call calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
192	tq_cdrag, ps(:knon), qsurf(:knon), radsol, &
193	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, &
194	v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
195	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
196	agesno = 0.
197	albedo = alboc_cd(rmu0(knindex)) * fmagic
198	z0_new = sqrt(rugos2 + rugoro2)
199	case (is_sic)
200	! Surface "glace de mer" appel a l'interface avec l'ocean
201
202	DO ii = 1, knon
203	IF (pctsrf_new_sic(knindex(ii)) < EPSFRA) then
204	snow(ii) = 0.
205	tsurf_new(ii) = RTT - 1.8
206	tsoil(ii, :) = RTT - 1.8
207	else
208	tsurf_new(ii) = ts(ii)
209	endif
210	enddo
211
212	CALL calbeta(is_sic, snow, qsol, beta, capsol(:knon), dif_grnd(:knon))
213	CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, soilflux)
214	cal = RCPD / soilcap
215	dif_grnd = 0.
216	tsurf = tsurf_new
217	beta = 1.
218
219	CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
220	tq_cdrag, ps(:knon), qsurf(:knon), radsol + soilflux, &
221	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay, &
222	v1_lay, petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
223	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
224	CALL fonte_neige(is_sic, dtime, precip_rain(:knon), &
225	precip_snow(:knon), snow, qsol, tsurf_new, evap, &
226	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
227
228	! Compute the albedo:
229
230	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
231	WHERE (snow < 0.0001) agesno = 0.
232	zfra = MAX(0., MIN(1., snow / (snow + 10.)))
233	albedo = alb_neig * zfra + 0.6 * (1. - zfra)
234
235	z0_new = SQRT(0.0022 + rugoro2)
236	case (is_lic)
237	! Surface "glacier continentaux" appel a l'interface avec le sol
238
239	CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux)
240	cal = RCPD / soilcap
241	beta = 1.
242	dif_grnd = 0.
243
244	call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag, &
245	ps(:knon), qsurf(:knon), radsol + soilflux, dif_grnd(:knon), &
246	temp_air(:knon), spechum(:knon), u1_lay, v1_lay, &
247	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
248	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
249	call fonte_neige(is_lic, dtime, precip_rain(:knon), &
250	precip_snow(:knon), snow, qsol, tsurf_new, evap, &
251	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
252
253	! calcul albedo
254	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
255	WHERE (snow < 0.0001) agesno = 0.
256	albedo = 0.77
257
258	! Rugosite
259	z0_new = rugoro
260	case default
261	print *, 'Index surface = ', nisurf
262	call abort_gcm("interfsurf_hq", 'Index surface non valable')
263	end select
264
265	END SUBROUTINE interfsurf_hq
266
267	end module interfsurf_hq_m