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 clesphys2, only: soil_model
    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(klon)
    ! column-density of water in soil, in kg m-2

    real, dimension(klon), intent(IN):: u1_lay, v1_lay
    ! u1_lay vitesse u 1ere couche
    ! v1_lay vitesse v 1ere couche
    real, dimension(klon), intent(IN):: temp_air, spechum
    ! temp_air temperature de l'air 1ere couche
    ! spechum humidite specifique 1ere couche
    real, dimension(klon), intent(INOUT):: tq_cdrag ! 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(INOUT):: 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, parameter:: calice = 1. / (5.1444e6 * 0.15), tau_gl = 86400. * 5.
    real, parameter:: calsno = 1. / (2.3867e6 * 0.15)
    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(:knon), beta, capsol(:knon), &
            dif_grnd(:knon))

       IF (soil_model) THEN
          CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux)
          cal = RCPD / soilcap
          radsol = radsol + soilflux
       ELSE
          cal = RCPD * capsol(:knon)
       ENDIF

       CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
            ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
            temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
            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(:knon), 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(:knon), ps(:knon), qsurf(:knon), radsol, &
            dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
            v1_lay(:knon), 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
             IF (soil_model) tsoil(ii, :) = RTT - 1.8
          else
             tsurf_new(ii) = ts(ii)
          endif
       enddo

       CALL calbeta(is_sic, snow, qsol(:knon), beta, capsol(:knon), &
            dif_grnd(:knon))

       IF (soil_model) THEN
          CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, &
               soilflux)
          cal = RCPD / soilcap
          radsol = radsol + soilflux
          dif_grnd = 0.
       ELSE
          dif_grnd = 1. / tau_gl
          cal = RCPD * calice
          WHERE (snow > 0.) cal = RCPD * calsno
       ENDIF
       tsurf = tsurf_new
       beta = 1.

       CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
            tq_cdrag(:knon), ps(:knon), qsurf(:knon), radsol, &
            dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
            v1_lay(:knon), 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(:knon), 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

       IF (soil_model) THEN
          CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux)
          cal = RCPD / soilcap
          radsol = radsol + soilflux
       ELSE
          cal = RCPD * calice
          WHERE (snow > 0.) cal = RCPD * calsno
       ENDIF
       beta = 1.
       dif_grnd = 0.

       call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
            ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
            temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
            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(:knon), 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 clesphys2, only: soil_model
26	USE dimphy, ONLY: klon
27	USE fonte_neige_m, ONLY: fonte_neige
28	USE indicesol, ONLY: epsfra, is_lic, is_oce, is_sic, is_ter
29	USE interface_surf, ONLY: conf_interface
30	USE interfsur_lim_m, ONLY: interfsur_lim
31	use read_sst_m, only: read_sst
32	use soil_m, only: soil
33	USE suphec_m, ONLY: rcpd, rtt
34
35	real, intent(IN):: dtime ! pas de temps de la physique (en s)
36	integer, intent(IN):: julien ! jour dans l'annee en cours
37	real, intent(IN):: rmu0(klon) ! cosinus de l'angle solaire zenithal
38	integer, intent(IN):: nisurf ! index de la surface a traiter
39
40	integer, intent(in):: knindex(:) ! (knon)
41	! index des points de la surface a traiter
42
43	logical, intent(IN):: debut ! 1er appel a la physique
44	! (si false calcul simplifie des fluxs sur les continents)
45
46	REAL, intent(inout):: tsoil(:, :) ! (knon, nsoilmx)
47
48	REAL, intent(INOUT):: qsol(klon)
49	! column-density of water in soil, in kg m-2
50
51	real, dimension(klon), intent(IN):: u1_lay, v1_lay
52	! u1_lay vitesse u 1ere couche
53	! v1_lay vitesse v 1ere couche
54	real, dimension(klon), intent(IN):: temp_air, spechum
55	! temp_air temperature de l'air 1ere couche
56	! spechum humidite specifique 1ere couche
57	real, dimension(klon), intent(INOUT):: tq_cdrag ! coefficient d'echange
58
59	real, dimension(klon), intent(IN):: petAcoef, peqAcoef
60	! coefficients A de la r\'esolution de la couche limite pour t et q
61
62	real, dimension(klon), intent(IN):: petBcoef, peqBcoef
63	! coefficients B de la r\'esolution de la couche limite pour t et q
64
65	real, intent(IN):: precip_rain(klon)
66	! precipitation, liquid water mass flux (kg / m2 / s), positive down
67
68	real, intent(IN):: precip_snow(klon)
69	! precipitation, solid water mass flux (kg / m2 / s), positive down
70
71	real, intent(IN):: rugos(klon) ! rugosite
72	real, intent(IN):: rugoro(klon) ! rugosite orographique
73	real, intent(INOUT):: snow(:) ! (knon)
74	real, intent(INOUT):: qsurf(klon)
75	real, intent(IN):: ts(:) ! (knon) temp\'erature de surface
76	real, intent(IN):: p1lay(klon) ! pression 1er niveau (milieu de couche)
77	real, dimension(klon), intent(IN):: ps ! pression au sol
78	REAL, INTENT(INOUT):: radsol(:) ! (knon) rayonnement net au sol (LW + SW)
79	real, intent(OUT):: evap(:) ! (knon) evaporation totale
80
81	real, intent(OUT):: flux_t(:) ! (knon) flux de chaleur sensible
82	! (Cp T) à la surface, positif vers le bas, W / m2
83
84	real, intent(OUT):: fluxlat(:) ! (knon) flux de chaleur latente
85	real, intent(OUT):: dflux_l(:), dflux_s(:) ! (knon)
86	real, intent(OUT):: tsurf_new(:) ! (knon) temp\'erature au sol
87	real, intent(OUT):: albedo(:) ! (knon) albedo
88	real, intent(OUT):: z0_new(klon) ! surface roughness
89
90	real, intent(in):: pctsrf_new_sic(:) ! (klon)
91	! nouvelle repartition des surfaces
92
93	real, intent(INOUT):: agesno(:) ! (knon)
94
95	! Flux d'eau "perdue" par la surface et n\'ecessaire pour limiter la
96	! hauteur de neige, en kg / m2 / s
97	real, dimension(klon), intent(INOUT):: fqcalving
98
99	! Flux thermique utiliser pour fondre la neige
100	real, dimension(klon), intent(INOUT):: ffonte
101
102	real, dimension(klon), intent(INOUT):: run_off_lic_0
103	! run_off_lic_0 runoff glacier du pas de temps precedent
104
105	! Local:
106	integer knon ! nombre de points de la surface a traiter
107	REAL soilcap(size(knindex)) ! (knon)
108	REAL soilflux(size(knindex)) ! (knon)
109	logical:: first_call = .true.
110	integer ii
111	real cal(size(knindex)) ! (knon)
112	real beta(size(knindex)) ! (knon) evap reelle
113	real dif_grnd(klon), capsol(klon)
114	real, parameter:: calice = 1. / (5.1444e6 * 0.15), tau_gl = 86400. * 5.
115	real, parameter:: calsno = 1. / (2.3867e6 * 0.15)
116	real tsurf(size(knindex)) ! (knon)
117	real alb_neig(size(knindex)) ! (knon)
118	real zfra(size(knindex)) ! (knon)
119	REAL, PARAMETER:: fmagic = 1. ! facteur magique pour r\'egler l'alb\'edo
120
121	!-------------------------------------------------------------
122
123	knon = size(knindex)
124
125	! On doit commencer par appeler les schemas de surfaces continentales
126	! car l'ocean a besoin du ruissellement qui est y calcule
127
128	if (first_call) then
129	call conf_interface
130
131	if (nisurf /= is_ter .and. klon > 1) then
132	print *, ' nisurf = ', nisurf, ' /= is_ter = ', is_ter
133	print *, 'or on doit commencer par les surfaces continentales'
134	call abort_gcm("interfsurf_hq", &
135	'On doit commencer par les surfaces continentales')
136	endif
137
138	if (is_oce > is_sic) then
139	print *, 'is_oce = ', is_oce, '> is_sic = ', is_sic
140	call abort_gcm("interfsurf_hq", &
141	"L'ocean doit etre traite avant la banquise")
142	endif
143
144	first_call = .false.
145	endif
146
147	! Initialisations diverses
148
149	ffonte(1:knon) = 0.
150	fqcalving(1:knon) = 0.
151	dif_grnd = 999999.
152	capsol = 999999.
153	z0_new = 999999.
154
155	! Aiguillage vers les differents schemas de surface
156
157	select case (nisurf)
158	case (is_ter)
159	! Surface "terre", appel \`a l'interface avec les sols continentaux
160
161	! Calcul age de la neige
162
163	! Read albedo from the file containing boundary conditions then
164	! add the albedo of snow:
165
166	call interfsur_lim(dtime, julien, knindex, debut, albedo, z0_new)
167
168	! Calcul de snow et qsurf, hydrologie adapt\'ee
169	CALL calbeta(is_ter, snow, qsol(:knon), beta, capsol(:knon), &
170	dif_grnd(:knon))
171
172	IF (soil_model) THEN
173	CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux)
174	cal = RCPD / soilcap
175	radsol = radsol + soilflux
176	ELSE
177	cal = RCPD * capsol(:knon)
178	ENDIF
179
180	CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
181	ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
182	temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
183	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
184	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
185	CALL fonte_neige(is_ter, dtime, precip_rain(:knon), &
186	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
187	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
188
189	call albsno(dtime, agesno, alb_neig, precip_snow(:knon))
190	where (snow < 0.0001) agesno = 0.
191	zfra = max(0., min(1., snow / (snow + 10.)))
192	albedo = alb_neig * zfra + albedo * (1. - zfra)
193	z0_new = sqrt(z0_new2 + rugoro2)
194	case (is_oce)
195	! Surface "oc\'ean", appel \`a l'interface avec l'oc\'ean
196
197	call read_sst(julien, knindex, tsurf)
198	cal = 0.
199	beta = 1.
200	dif_grnd = 0.
201	call calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
202	tq_cdrag(:knon), ps(:knon), qsurf(:knon), radsol, &
203	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
204	v1_lay(:knon), petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
205	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
206	agesno = 0.
207	albedo = alboc_cd(rmu0(knindex)) * fmagic
208	z0_new = sqrt(rugos2 + rugoro2)
209	case (is_sic)
210	! Surface "glace de mer" appel a l'interface avec l'ocean
211
212	DO ii = 1, knon
213	IF (pctsrf_new_sic(knindex(ii)) < EPSFRA) then
214	snow(ii) = 0.
215	tsurf_new(ii) = RTT - 1.8
216	IF (soil_model) tsoil(ii, :) = RTT - 1.8
217	else
218	tsurf_new(ii) = ts(ii)
219	endif
220	enddo
221
222	CALL calbeta(is_sic, snow, qsol(:knon), beta, capsol(:knon), &
223	dif_grnd(:knon))
224
225	IF (soil_model) THEN
226	CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, &
227	soilflux)
228	cal = RCPD / soilcap
229	radsol = radsol + soilflux
230	dif_grnd = 0.
231	ELSE
232	dif_grnd = 1. / tau_gl
233	cal = RCPD * calice
234	WHERE (snow > 0.) cal = RCPD * calsno
235	ENDIF
236	tsurf = tsurf_new
237	beta = 1.
238
239	CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
240	tq_cdrag(:knon), ps(:knon), qsurf(:knon), radsol, &
241	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
242	v1_lay(:knon), petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
243	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
244	CALL fonte_neige(is_sic, dtime, precip_rain(:knon), &
245	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
246	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
247
248	! Compute the albedo:
249
250	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
251	WHERE (snow < 0.0001) agesno = 0.
252	zfra = MAX(0., MIN(1., snow / (snow + 10.)))
253	albedo = alb_neig * zfra + 0.6 * (1. - zfra)
254
255	z0_new = SQRT(0.0022 + rugoro2)
256	case (is_lic)
257	! Surface "glacier continentaux" appel a l'interface avec le sol
258
259	IF (soil_model) THEN
260	CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux)
261	cal = RCPD / soilcap
262	radsol = radsol + soilflux
263	ELSE
264	cal = RCPD * calice
265	WHERE (snow > 0.) cal = RCPD * calsno
266	ENDIF
267	beta = 1.
268	dif_grnd = 0.
269
270	call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
271	ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
272	temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
273	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
274	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
275	call fonte_neige(is_lic, dtime, precip_rain(:knon), &
276	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
277	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
278
279	! calcul albedo
280	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
281	WHERE (snow < 0.0001) agesno = 0.
282	albedo = 0.77
283
284	! Rugosite
285	z0_new = rugoro
286	case default
287	print *, 'Index surface = ', nisurf
288	call abort_gcm("interfsurf_hq", 'Index surface non valable')
289	end select
290
291	END SUBROUTINE interfsurf_hq
292
293	end module interfsurf_hq_m