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, fder, 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(INOUT):: fder(:) ! (knon) derivee des flux (pour le couplage)
    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.
       fder = fder + dflux_s + dflux_l
       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)

       fder = fder + dflux_s + dflux_l
       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, fder, rugos, &
10	rugoro, snow, qsurf, ts, p1lay, ps, radsol, evap, flux_t, fluxlat, &
11	dflux_l, dflux_s, tsurf_new, albedo, z0_new, pctsrf_new_sic, agesno, &
12	fqcalving, 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(INOUT):: fder(:) ! (knon) derivee des flux (pour le couplage)
72	real, intent(IN):: rugos(klon) ! rugosite
73	real, intent(IN):: rugoro(klon) ! rugosite orographique
74	real, intent(INOUT):: snow(:) ! (knon)
75	real, intent(INOUT):: qsurf(klon)
76	real, intent(IN):: ts(:) ! (knon) temp\'erature de surface
77	real, intent(IN):: p1lay(klon) ! pression 1er niveau (milieu de couche)
78	real, dimension(klon), intent(IN):: ps ! pression au sol
79	REAL, INTENT(INOUT):: radsol(:) ! (knon) rayonnement net au sol (LW + SW)
80	real, intent(OUT):: evap(:) ! (knon) evaporation totale
81
82	real, intent(OUT):: flux_t(:) ! (knon) flux de chaleur sensible
83	! (Cp T) à la surface, positif vers le bas, W / m2
84
85	real, intent(OUT):: fluxlat(:) ! (knon) flux de chaleur latente
86	real, intent(OUT):: dflux_l(:), dflux_s(:) ! (knon)
87	real, intent(OUT):: tsurf_new(:) ! (knon) temp\'erature au sol
88	real, intent(OUT):: albedo(:) ! (knon) albedo
89	real, intent(OUT):: z0_new(klon) ! surface roughness
90
91	real, intent(in):: pctsrf_new_sic(:) ! (klon)
92	! nouvelle repartition des surfaces
93
94	real, intent(INOUT):: agesno(:) ! (knon)
95
96	! Flux d'eau "perdue" par la surface et n\'ecessaire pour limiter la
97	! hauteur de neige, en kg / m2 / s
98	real, dimension(klon), intent(INOUT):: fqcalving
99
100	! Flux thermique utiliser pour fondre la neige
101	real, dimension(klon), intent(INOUT):: ffonte
102
103	real, dimension(klon), intent(INOUT):: run_off_lic_0
104	! run_off_lic_0 runoff glacier du pas de temps precedent
105
106	! Local:
107	integer knon ! nombre de points de la surface a traiter
108	REAL soilcap(size(knindex)) ! (knon)
109	REAL soilflux(size(knindex)) ! (knon)
110	logical:: first_call = .true.
111	integer ii
112	real cal(size(knindex)) ! (knon)
113	real beta(size(knindex)) ! (knon) evap reelle
114	real dif_grnd(klon), capsol(klon)
115	real, parameter:: calice = 1. / (5.1444e6 * 0.15), tau_gl = 86400. * 5.
116	real, parameter:: calsno = 1. / (2.3867e6 * 0.15)
117	real tsurf(size(knindex)) ! (knon)
118	real alb_neig(size(knindex)) ! (knon)
119	real zfra(size(knindex)) ! (knon)
120	REAL, PARAMETER:: fmagic = 1. ! facteur magique pour r\'egler l'alb\'edo
121
122	!-------------------------------------------------------------
123
124	knon = size(knindex)
125
126	! On doit commencer par appeler les schemas de surfaces continentales
127	! car l'ocean a besoin du ruissellement qui est y calcule
128
129	if (first_call) then
130	call conf_interface
131
132	if (nisurf /= is_ter .and. klon > 1) then
133	print *, ' nisurf = ', nisurf, ' /= is_ter = ', is_ter
134	print *, 'or on doit commencer par les surfaces continentales'
135	call abort_gcm("interfsurf_hq", &
136	'On doit commencer par les surfaces continentales')
137	endif
138
139	if (is_oce > is_sic) then
140	print *, 'is_oce = ', is_oce, '> is_sic = ', is_sic
141	call abort_gcm("interfsurf_hq", &
142	"L'ocean doit etre traite avant la banquise")
143	endif
144
145	first_call = .false.
146	endif
147
148	! Initialisations diverses
149
150	ffonte(1:knon) = 0.
151	fqcalving(1:knon) = 0.
152	dif_grnd = 999999.
153	capsol = 999999.
154	z0_new = 999999.
155
156	! Aiguillage vers les differents schemas de surface
157
158	select case (nisurf)
159	case (is_ter)
160	! Surface "terre", appel \`a l'interface avec les sols continentaux
161
162	! Calcul age de la neige
163
164	! Read albedo from the file containing boundary conditions then
165	! add the albedo of snow:
166
167	call interfsur_lim(dtime, julien, knindex, debut, albedo, z0_new)
168
169	! Calcul de snow et qsurf, hydrologie adapt\'ee
170	CALL calbeta(is_ter, snow, qsol(:knon), beta, capsol(:knon), &
171	dif_grnd(:knon))
172
173	IF (soil_model) THEN
174	CALL soil(dtime, is_ter, snow, ts, tsoil, soilcap, soilflux)
175	cal = RCPD / soilcap
176	radsol = radsol + soilflux
177	ELSE
178	cal = RCPD * capsol(:knon)
179	ENDIF
180
181	CALL calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
182	ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
183	temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
184	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
185	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
186	CALL fonte_neige(is_ter, dtime, precip_rain(:knon), &
187	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
188	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
189
190	call albsno(dtime, agesno, alb_neig, precip_snow(:knon))
191	where (snow < 0.0001) agesno = 0.
192	zfra = max(0., min(1., snow / (snow + 10.)))
193	albedo = alb_neig * zfra + albedo * (1. - zfra)
194	z0_new = sqrt(z0_new2 + rugoro2)
195	case (is_oce)
196	! Surface "oc\'ean", appel \`a l'interface avec l'oc\'ean
197
198	call read_sst(julien, knindex, tsurf)
199	cal = 0.
200	beta = 1.
201	dif_grnd = 0.
202	call calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
203	tq_cdrag(:knon), ps(:knon), qsurf(:knon), radsol, &
204	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
205	v1_lay(:knon), petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
206	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
207	agesno = 0.
208	fder = fder + dflux_s + dflux_l
209	albedo = alboc_cd(rmu0(knindex)) * fmagic
210	z0_new = sqrt(rugos2 + rugoro2)
211	case (is_sic)
212	! Surface "glace de mer" appel a l'interface avec l'ocean
213
214	DO ii = 1, knon
215	IF (pctsrf_new_sic(knindex(ii)) < EPSFRA) then
216	snow(ii) = 0.
217	tsurf_new(ii) = RTT - 1.8
218	IF (soil_model) tsoil(ii, :) = RTT - 1.8
219	else
220	tsurf_new(ii) = ts(ii)
221	endif
222	enddo
223
224	CALL calbeta(is_sic, snow, qsol(:knon), beta, capsol(:knon), &
225	dif_grnd(:knon))
226
227	IF (soil_model) THEN
228	CALL soil(dtime, is_sic, snow, tsurf_new, tsoil, soilcap, &
229	soilflux)
230	cal = RCPD / soilcap
231	radsol = radsol + soilflux
232	dif_grnd = 0.
233	ELSE
234	dif_grnd = 1. / tau_gl
235	cal = RCPD * calice
236	WHERE (snow > 0.) cal = RCPD * calsno
237	ENDIF
238	tsurf = tsurf_new
239	beta = 1.
240
241	CALL calcul_fluxs(dtime, tsurf, p1lay(:knon), cal, beta, &
242	tq_cdrag(:knon), ps(:knon), qsurf(:knon), radsol, &
243	dif_grnd(:knon), temp_air(:knon), spechum(:knon), u1_lay(:knon), &
244	v1_lay(:knon), petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
245	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
246	CALL fonte_neige(is_sic, dtime, precip_rain(:knon), &
247	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
248	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
249
250	! Compute the albedo:
251
252	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
253	WHERE (snow < 0.0001) agesno = 0.
254	zfra = MAX(0., MIN(1., snow / (snow + 10.)))
255	albedo = alb_neig * zfra + 0.6 * (1. - zfra)
256
257	fder = fder + dflux_s + dflux_l
258	z0_new = SQRT(0.0022 + rugoro2)
259	case (is_lic)
260	! Surface "glacier continentaux" appel a l'interface avec le sol
261
262	IF (soil_model) THEN
263	CALL soil(dtime, is_lic, snow, ts, tsoil, soilcap, soilflux)
264	cal = RCPD / soilcap
265	radsol = radsol + soilflux
266	ELSE
267	cal = RCPD * calice
268	WHERE (snow > 0.) cal = RCPD * calsno
269	ENDIF
270	beta = 1.
271	dif_grnd = 0.
272
273	call calcul_fluxs(dtime, ts, p1lay(:knon), cal, beta, tq_cdrag(:knon), &
274	ps(:knon), qsurf(:knon), radsol, dif_grnd(:knon), &
275	temp_air(:knon), spechum(:knon), u1_lay(:knon), v1_lay(:knon), &
276	petAcoef(:knon), peqAcoef(:knon), petBcoef(:knon), &
277	peqBcoef(:knon), tsurf_new, evap, fluxlat, flux_t, dflux_s, dflux_l)
278	call fonte_neige(is_lic, dtime, precip_rain(:knon), &
279	precip_snow(:knon), snow, qsol(:knon), tsurf_new, evap, &
280	fqcalving(:knon), ffonte(:knon), run_off_lic_0(:knon))
281
282	! calcul albedo
283	CALL albsno(dtime, agesno, alb_neig, precip_snow(:knon))
284	WHERE (snow < 0.0001) agesno = 0.
285	albedo = 0.77
286
287	! Rugosite
288	z0_new = rugoro
289	case default
290	print *, 'Index surface = ', nisurf
291	call abort_gcm("interfsurf_hq", 'Index surface non valable')
292	end select
293
294	END SUBROUTINE interfsurf_hq
295
296	end module interfsurf_hq_m