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surf_landice_mod.F90 @ 5327

Last change on this file since 5327 was 4506, checked in by evignon, 19 months ago
commit sur des modifications propres aux isotopes pour la neige soufflee
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1	!
2	MODULE surf_landice_mod
3
4	IMPLICIT NONE
5
6	CONTAINS
7	!
8	!****************************************************************************************
9	!
10	SUBROUTINE surf_landice(itime, dtime, knon, knindex, &
11	rlon, rlat, debut, lafin, &
12	rmu0, lwdownm, albedo, pphi1, &
13	swnet, lwnet, tsurf, p1lay, &
14	cdragh, cdragm, precip_rain, precip_snow, precip_bs, temp_air, spechum, &
15	AcoefH, AcoefQ, BcoefH, BcoefQ, &
16	AcoefU, AcoefV, BcoefU, BcoefV, &
17	ps, u1, v1, gustiness, rugoro, pctsrf, &
18	snow, qsurf, qsol, qbs1, agesno, &
19	tsoil, z0m, z0h, SFRWL, alb_dir, alb_dif, evap, fluxsens, fluxlat, fluxbs, &
20	tsurf_new, dflux_s, dflux_l, &
21	alt, slope, cloudf, &
22	snowhgt, qsnow, to_ice, sissnow, &
23	alb3, runoff, &
24	flux_u1, flux_v1 &
25	#ifdef ISO
26	& ,xtprecip_rain, xtprecip_snow,xtspechum,Rland_ice &
27	& ,xtsnow,xtsol,xtevap &
28	#endif
29	& )
30
31	USE dimphy
32	USE surface_data, ONLY : type_ocean, calice, calsno, landice_opt, iflag_albcalc
33	USE fonte_neige_mod, ONLY : fonte_neige,run_off_lic,fqcalving_global,ffonte_global,fqfonte_global,runofflic_global
34	USE cpl_mod, ONLY : cpl_send_landice_fields
35	USE calcul_fluxs_mod
36	USE phys_local_var_mod, ONLY : zxrhoslic, zxustartlic
37	USE phys_output_var_mod, ONLY : snow_o,zfra_o
38	#ifdef ISO
39	USE fonte_neige_mod, ONLY : xtrun_off_lic
40	USE infotrac_phy, ONLY : ntiso,niso
41	USE isotopes_routines_mod, ONLY: calcul_iso_surf_lic_vectall
42	#ifdef ISOVERIF
43	use isotopes_mod, ONLY: iso_eau,ridicule
44	use isotopes_verif_mod
45	#endif
46	#endif
47	USE geometry_mod, ONLY : longitude,latitude
48
49	!FC
50	USE ioipsl_getin_p_mod, ONLY : getin_p
51	USE blowing_snow_ini_mod, ONLY : zeta_bs, pbst_bs, prt_bs
52
53	#ifdef CPP_INLANDSIS
54	USE surf_inlandsis_mod, ONLY : surf_inlandsis
55	#endif
56
57	USE indice_sol_mod
58
59
60	! INCLUDE "indicesol.h"
61	INCLUDE "dimsoil.h"
62	INCLUDE "YOMCST.h"
63	INCLUDE "clesphys.h"
64
65	! Input variables
66	!****************************************************************************************
67	INTEGER, INTENT(IN) :: itime, knon
68	INTEGER, DIMENSION(klon), INTENT(in) :: knindex
69	REAL, INTENT(in) :: dtime
70	REAL, DIMENSION(klon), INTENT(IN) :: swnet ! net shortwave radiance
71	REAL, DIMENSION(klon), INTENT(IN) :: lwnet ! net longwave radiance
72	REAL, DIMENSION(klon), INTENT(IN) :: tsurf
73	REAL, DIMENSION(klon), INTENT(IN) :: p1lay
74	REAL, DIMENSION(klon), INTENT(IN) :: cdragh, cdragm
75	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow, precip_bs
76	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
77	REAL, DIMENSION(klon), INTENT(IN) :: AcoefH, AcoefQ
78	REAL, DIMENSION(klon), INTENT(IN) :: BcoefH, BcoefQ
79	REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV
80	REAL, DIMENSION(klon), INTENT(IN) :: ps
81	REAL, DIMENSION(klon), INTENT(IN) :: u1, v1, gustiness, qbs1
82	REAL, DIMENSION(klon), INTENT(IN) :: rugoro
83	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
84	#ifdef ISO
85	REAL, DIMENSION(ntiso,klon), INTENT(IN) :: xtprecip_rain, xtprecip_snow
86	REAL, DIMENSION(ntiso,klon), INTENT(IN) :: xtspechum
87	#endif
88
89	LOGICAL, INTENT(IN) :: debut !true if first step
90	LOGICAL, INTENT(IN) :: lafin !true if last step
91	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
92	REAL, DIMENSION(klon), INTENT(IN) :: rmu0
93	REAL, DIMENSION(klon), INTENT(IN) :: lwdownm !ylwdown
94	REAL, DIMENSION(klon), INTENT(IN) :: albedo !mean albedo
95	REAL, DIMENSION(klon), INTENT(IN) :: pphi1
96	REAL, DIMENSION(klon), INTENT(IN) :: alt !mean altitude of the grid box
97	REAL, DIMENSION(klon), INTENT(IN) :: slope !mean slope in grid box
98	REAL, DIMENSION(klon), INTENT(IN) :: cloudf !total cloud fraction
99
100	! In/Output variables
101	!****************************************************************************************
102	REAL, DIMENSION(klon), INTENT(INOUT) :: snow, qsol
103	REAL, DIMENSION(klon), INTENT(INOUT) :: agesno
104	REAL, DIMENSION(klon, nsoilmx), INTENT(INOUT) :: tsoil
105	#ifdef ISO
106	REAL, DIMENSION(niso,klon), INTENT(INOUT) :: xtsnow, xtsol
107	REAL, DIMENSION(niso,klon), INTENT(INOUT) :: Rland_ice
108	#endif
109
110	! Output variables
111	!****************************************************************************************
112	REAL, DIMENSION(klon), INTENT(OUT) :: qsurf
113	REAL, DIMENSION(klon), INTENT(OUT) :: z0m, z0h
114	!albedo SB >>>
115	! REAL, DIMENSION(klon), INTENT(OUT) :: alb1 ! new albedo in visible SW interval
116	! REAL, DIMENSION(klon), INTENT(OUT) :: alb2 ! new albedo in near IR interval
117	REAL, DIMENSION(6), INTENT(IN) :: SFRWL
118	REAL, DIMENSION(klon,nsw), INTENT(OUT) :: alb_dir,alb_dif
119	!albedo SB <<<
120	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat
121	REAL, DIMENSION(klon), INTENT(OUT) :: fluxbs
122	REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new
123	REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l
124	REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1, flux_v1
125
126	REAL, DIMENSION(klon), INTENT(OUT) :: alb3
127	REAL, DIMENSION(klon), INTENT(OUT) :: qsnow !column water in snow [kg/m2]
128	REAL, DIMENSION(klon), INTENT(OUT) :: snowhgt !Snow height (m)
129	REAL, DIMENSION(klon), INTENT(OUT) :: to_ice
130	REAL, DIMENSION(klon), INTENT(OUT) :: sissnow
131	REAL, DIMENSION(klon), INTENT(OUT) :: runoff !Land ice runoff
132	#ifdef ISO
133	REAL, DIMENSION(ntiso,klon), INTENT(OUT) :: xtevap
134	! real, DIMENSION(niso,klon) :: xtrun_off_lic_0_diag ! est une variable globale de
135	! fonte_neige
136	#endif
137
138
139	! Local variables
140	!****************************************************************************************
141	REAL, DIMENSION(klon) :: soilcap, soilflux
142	REAL, DIMENSION(klon) :: cal, beta, dif_grnd
143	REAL, DIMENSION(klon) :: zfra, alb_neig
144	REAL, DIMENSION(klon) :: radsol
145	REAL, DIMENSION(klon) :: u0, v0, u1_lay, v1_lay, ustar
146	INTEGER :: i,j,nt
147	REAL, DIMENSION(klon) :: fqfonte,ffonte
148	REAL, DIMENSION(klon) :: run_off_lic_frac
149	#ifdef ISO
150	real, parameter :: t_coup = 273.15
151	real, dimension(klon) :: fqfonte_diag
152	real, dimension(klon) :: fq_fonte_diag
153	real, dimension(klon) :: snow_evap_diag
154	real, dimension(klon) :: fqcalving_diag
155	real max_eau_sol_diag
156	real, dimension(klon) :: runoff_diag
157	real, dimension(klon) :: run_off_lic_diag
158	real :: coeff_rel_diag
159	integer ixt
160	REAL, DIMENSION(niso,klon) :: xtsnow_prec,xtsol_prec
161	REAL, DIMENSION(klon) :: snow_prec,qsol_prec
162	! real, DIMENSION(klon) :: run_off_lic_0_diag
163	#endif
164
165	REAL, DIMENSION(klon) :: emis_new !Emissivity
166	REAL, DIMENSION(klon) :: swdown,lwdown
167	REAL, DIMENSION(klon) :: precip_snow_adv, snow_adv !Snow Drift precip./advection (not used in inlandsis)
168	REAL, DIMENSION(klon) :: erod !erosion of surface snow (flux, kg/m2/s like evap)
169	REAL, DIMENSION(klon) :: zsl_height, wind_velo !surface layer height, wind spd
170	REAL, DIMENSION(klon) :: dens_air, snow_cont_air !air density; snow content air
171	REAL, DIMENSION(klon) :: alb_soil !albedo of underlying ice
172	REAL, DIMENSION(klon) :: pexner !Exner potential
173	REAL :: pref
174	REAL, DIMENSION(klon,nsoilmx) :: tsoil0 !modif
175	REAL :: dtis ! subtimestep
176	LOGICAL :: debut_is, lafin_is ! debut and lafin for inlandsis
177
178	CHARACTER (len = 20) :: modname = 'surf_landice'
179	CHARACTER (len = 80) :: abort_message
180
181
182	REAL,DIMENSION(klon) :: alb1,alb2
183	REAL,DIMENSION(klon) :: precip_totsnow, evap_totsnow
184	REAL, DIMENSION (klon,6) :: alb6
185	REAL :: rho0, rhoice, ustart0, hsalt, esalt, qsalt
186	REAL :: tau_dens, tau_dens0, tau_densmin, rhomax, rhohard
187	REAL, DIMENSION(klon) :: ws1, rhos, ustart
188	! End definition
189	!****************************************************************************************
190	!FC
191	!FC
192	REAL,SAVE :: alb_vis_sno_lic
193	!$OMP THREADPRIVATE(alb_vis_sno_lic)
194	REAL,SAVE :: alb_nir_sno_lic
195	!$OMP THREADPRIVATE(alb_nir_sno_lic)
196	LOGICAL, SAVE :: firstcall = .TRUE.
197	!$OMP THREADPRIVATE(firstcall)
198
199
200	!FC firtscall initializations
201	!******************************************************************************************
202	#ifdef ISO
203	#ifdef ISOVERIF
204	! write(,) 'surf_land_ice 1499'
205	do i=1,knon
206	if (iso_eau.gt.0) then
207	call iso_verif_egalite_choix(xtsnow(iso_eau,i),snow(i), &
208	& 'surf_land_ice 126',errmax,errmaxrel)
209	endif !if (iso_eau.gt.0) then
210	enddo !do i=1,knon
211	#endif
212	#endif
213
214	IF (firstcall) THEN
215	alb_vis_sno_lic=0.77
216	CALL getin_p('alb_vis_sno_lic',alb_vis_sno_lic)
217	PRINT*, 'alb_vis_sno_lic',alb_vis_sno_lic
218	alb_nir_sno_lic=0.77
219	CALL getin_p('alb_nir_sno_lic',alb_nir_sno_lic)
220	PRINT*, 'alb_nir_sno_lic',alb_nir_sno_lic
221
222	firstcall=.false.
223	ENDIF
224	!******************************************************************************************
225
226	! Initialize output variables
227	alb3(:) = 999999.
228	alb2(:) = 999999.
229	alb1(:) = 999999.
230	fluxbs(:)=0.
231	runoff(:) = 0.
232	!****************************************************************************************
233	! Calculate total absorbed radiance at surface
234	!
235	!****************************************************************************************
236	radsol(:) = 0.0
237	radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
238
239	!****************************************************************************************
240
241	!****************************************************************************************
242	! landice_opt = 0 : soil_model, calcul_flux, fonte_neige, ...
243	! landice_opt = 1 : prepare and call INterace Lmdz SISvat (INLANDSIS)
244	!****************************************************************************************
245
246
247	IF (landice_opt .EQ. 1) THEN
248
249	!****************************************************************************************
250	! CALL to INLANDSIS interface
251	!****************************************************************************************
252	#ifdef CPP_INLANDSIS
253
254	#ifdef ISO
255	CALL abort_gcm('surf_landice 235','isotopes pas dans INLANDSIS',1)
256	#endif
257
258	debut_is=debut
259	lafin_is=.false.
260	! Suppose zero surface speed
261	u0(:) = 0.0
262	v0(:) = 0.0
263
264
265	CALL calcul_flux_wind(knon, dtime, &
266	u0, v0, u1, v1, gustiness, cdragm, &
267	AcoefU, AcoefV, BcoefU, BcoefV, &
268	p1lay, temp_air, &
269	flux_u1, flux_v1)
270
271
272	! Set constants and compute some input for SISVAT
273	! = 1000 hPa
274	! and calculate incoming flux for SW and LW interval: swdown, lwdown
275	swdown(:) = 0.0
276	lwdown(:) = 0.0
277	snow_cont_air(:) = 0. ! the snow content in air is not a prognostic variable of the model
278	alb_soil(:) = 0.4 ! before albedo(:) but here it is the ice albedo that we have to set
279	ustar(:) = 0.
280	pref = 100000.
281	DO i = 1, knon
282	swdown(i) = swnet(i)/(1-albedo(i))
283	lwdown(i) = lwdownm(i)
284	wind_velo(i) = u1(i)2 + v1(i)2
285	wind_velo(i) = wind_velo(i)**0.5
286	pexner(i) = (p1lay(i)/pref)**(RD/RCPD)
287	dens_air(i) = p1lay(i)/RD/temp_air(i) ! dry air density
288	zsl_height(i) = pphi1(i)/RG
289	tsoil0(i,:) = tsoil(i,:)
290	ustar(i)= (cdragm(i)(wind_velo(i)2))*0.5
291	END DO
292
293
294
295	dtis=dtime
296
297	IF (lafin) THEN
298	lafin_is=.true.
299	END IF
300
301	CALL surf_inlandsis(knon, rlon, rlat, knindex, itime, dtis, debut_is, lafin_is,&
302	rmu0, swdown, lwdown, albedo, pexner, ps, p1lay, precip_rain, precip_snow, &
303	zsl_height, wind_velo, ustar, temp_air, dens_air, spechum, tsurf,&
304	rugoro, snow_cont_air, alb_soil, alt, slope, cloudf, &
305	radsol, qsol, tsoil0, snow, zfra, snowhgt, qsnow, to_ice, sissnow,agesno, &
306	AcoefH, AcoefQ, BcoefH, BcoefQ, cdragm, cdragh, &
307	run_off_lic, fqfonte, ffonte, evap, erod, fluxsens, fluxlat,dflux_s, dflux_l, &
308	tsurf_new, alb1, alb2, alb3, alb6, &
309	emis_new, z0m, z0h, qsurf)
310
311	debut_is=.false.
312
313
314	! Treatment of snow melting and calving
315
316	! for consistency with standard LMDZ, add calving to run_off_lic
317	run_off_lic(:)=run_off_lic(:) + to_ice(:)
318
319	DO i = 1, knon
320	ffonte_global(knindex(i),is_lic) = ffonte(i)
321	fqfonte_global(knindex(i),is_lic) = fqfonte(i)! net melting= melting - refreezing
322	fqcalving_global(knindex(i),is_lic) = to_ice(i) ! flux
323	runofflic_global(knindex(i)) = run_off_lic(i)
324	ENDDO
325	! Here, we assume that the calving term is equal to the to_ice term
326	! (no ice accumulation)
327
328
329	#else
330	abort_message='Pb de coherence: landice_opt = 1 mais CPP_INLANDSIS = .false.'
331	CALL abort_physic(modname,abort_message,1)
332	#endif
333
334
335	ELSE
336
337	!****************************************************************************************
338	! Soil calculations
339	!
340	!****************************************************************************************
341
342	! EV: use calbeta
343	CALL calbeta(dtime, is_lic, knon, snow, qsol, beta, cal, dif_grnd)
344
345
346	! use soil model and recalculate properly cal
347	IF (soil_model) THEN
348	CALL soil(dtime, is_lic, knon, snow, tsurf, qsol, &
349	& longitude(knindex(1:knon)), latitude(knindex(1:knon)), tsoil, soilcap, soilflux)
350	cal(1:knon) = RCPD / soilcap(1:knon)
351	radsol(1:knon) = radsol(1:knon) + soilflux(1:knon)
352	ELSE
353	cal = RCPD * calice
354	WHERE (snow > 0.0) cal = RCPD * calsno
355	ENDIF
356
357
358	!****************************************************************************************
359	! Calulate fluxes
360	!
361	!****************************************************************************************
362	! beta(:) = 1.0
363	! dif_grnd(:) = 0.0
364
365	! Suppose zero surface speed
366	u0(:)=0.0
367	v0(:)=0.0
368	u1_lay(:) = u1(:) - u0(:)
369	v1_lay(:) = v1(:) - v0(:)
370
371	CALL calcul_fluxs(knon, is_lic, dtime, &
372	tsurf, p1lay, cal, beta, cdragh, cdragh, ps, &
373	precip_rain, precip_snow, snow, qsurf, &
374	radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, gustiness, &
375	1.,AcoefH, AcoefQ, BcoefH, BcoefQ, &
376	tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l)
377
378
379	#ifdef ISO
380	! verif
381	#ifdef ISOVERIF
382	!write(,) 'surf_land_ice 1499'
383	do i=1,knon
384	if (iso_eau.gt.0) then
385	if (snow(i).gt.ridicule) then
386	call iso_verif_egalite_choix(xtsnow(iso_eau,i),snow(i), &
387	& 'surf_land_ice 1151',errmax,errmaxrel)
388	endif !if ((snow(i).gt.ridicule)) then
389	endif !if (iso_eau.gt.0) then
390	enddo !do i=1,knon
391	#endif
392	!#ifdef ISOVERIF
393
394	do i=1,knon
395	snow_prec(i)=snow(i)
396	do ixt=1,niso
397	xtsnow_prec(ixt,i)=xtsnow(ixt,i)
398	enddo !do ixt=1,niso
399	! initialisation:
400	fq_fonte_diag(i)=0.0
401	fqfonte_diag(i)=0.0
402	snow_evap_diag(i)=0.0
403	enddo !do i=1,knon
404	#endif
405	!#ifdef ISO
406	CALL calcul_flux_wind(knon, dtime, &
407	u0, v0, u1, v1, gustiness, cdragm, &
408	AcoefU, AcoefV, BcoefU, BcoefV, &
409	p1lay, temp_air, &
410	flux_u1, flux_v1)
411
412
413	!****************************************************************************************
414	! Calculate albedo
415	!
416	!****************************************************************************************
417
418	CALL albsno(klon,knon,dtime,agesno(:),alb_neig(:), precip_snow(:))
419
420
421	! EV: following lines are obsolete since we set alb1 and alb2 to constant values
422	! I therefore comment them
423	! alb1(1:knon) = alb_neig(1:knon)*zfra(1:knon) + &
424	! 0.6 * (1.0-zfra(1:knon))
425	!
426	!IM: plusieurs choix/tests sur l'albedo des "glaciers continentaux"
427	! alb1(1 : knon) = 0.6 !IM cf FH/GK
428	! alb1(1 : knon) = 0.82
429	! alb1(1 : knon) = 0.77 !211003 Ksta0.77
430	! alb1(1 : knon) = 0.8 !KstaTER0.8 & LMD_ARMIP5
431	!IM: KstaTER0.77 & LMD_ARMIP6
432
433	! Attantion: alb1 and alb2 are not the same!
434	alb1(1:knon) = alb_vis_sno_lic
435	alb2(1:knon) = alb_nir_sno_lic
436
437
438	!****************************************************************************************
439	! Rugosity
440	!
441	!****************************************************************************************
442	z0m = z0m_landice
443	z0h = z0h_landice
444	!z0m = SQRT(z0m2+rugoro2)
445
446
447
448	! Simple blowing snow param
449	if (ok_bs) then
450	ustart0 = 0.211
451	rhoice = 920.0
452	rho0 = 200.0
453	rhomax=450.0
454	rhohard=400.0
455	tau_dens0=86400.0*10. ! 10 days by default, in s
456	tau_densmin=86400.0 ! 1 days according to in situ obs by C. Amory
457	do i = 1, knon
458	! estimation of snow density
459	! snow density increases with snow age and
460	! increases even faster in case of sedimentation of blowing snow
461	tau_dens=max(tau_densmin, tau_dens0*exp(-abs(precip_bs(i))/pbst_bs-abs(precip_rain(i))/prt_bs))
462	rhos(i)=rho0+(rhohard-rho0)(1.-exp(-agesno(i)86400.0/tau_dens))
463	! blowing snow flux formula used in MAR
464	ws1(i)=(u1(i)2+v1(i)2)**0.5
465	ustar(i)=(cdragm(i)(u1(i)2+v1(i)2))*0.5
466	ustart(i)=ustart0exp(max(rhoice/rho0-rhoice/rhos(i),0.))exp(max(0.,rhos(i)-rhomax))
467	! we have multiplied by exp to prevent erosion when rhos>rhomax (usefull till
468	! rhohard<450)
469	esalt=1./(3.25*max(ustar(i),0.001))
470	hsalt=0.08436ustar(i)*1.27
471	qsalt=(max(ustar(i)2-ustart(i)2,0.))/(RGhsalt)esalt
472	!ep=qsaltcdragm(i)sqrt(u1(i)2+v1(i)2)
473	fluxbs(i)= zeta_bsp1lay(i)/RD/temp_air(i)ws1(i)cdragm(i)(qbs1(i)-qsalt)
474	enddo
475
476	! for outputs
477	do j = 1, knon
478	i = knindex(j)
479	zxustartlic(i) = ustart(j)
480	zxrhoslic(i) = rhos(j)
481	enddo
482
483	endif
484
485
486
487	!****************************************************************************************
488	! Calculate surface snow amount
489	!
490	!****************************************************************************************
491	IF (ok_bs) THEN
492	precip_totsnow=precip_snow+precip_bs
493	evap_totsnow=evap-fluxbs ! flux bs is positive towards the surface (snow erosion)
494	ELSE
495	precip_totsnow=precip_snow
496	evap_totsnow=evap
497	ENDIF
498
499	CALL fonte_neige(knon, is_lic, knindex, dtime, &
500	tsurf, precip_rain, precip_totsnow, &
501	snow, qsol, tsurf_new, evap_totsnow &
502	#ifdef ISO
503	& ,fq_fonte_diag,fqfonte_diag,snow_evap_diag,fqcalving_diag &
504	& ,max_eau_sol_diag,runoff_diag,run_off_lic_diag,coeff_rel_diag &
505	#endif
506	& )
507
508
509	#ifdef ISO
510	#ifdef ISOVERIF
511	do i=1,knon
512	if (iso_eau.gt.0) then
513	call iso_verif_egalite_choix(Rland_ice(iso_eau,i),1.0, &
514	& 'surf_landice_mod 217',errmax,errmaxrel)
515	endif !if (iso_eau.gt.0) then
516	enddo !do i=1,knon
517	#endif
518	!#ifdef ISOVERIF
519
520	call calcul_iso_surf_lic_vectall(klon,knon, &
521	& evap,snow_evap_diag,Tsurf_new,snow, &
522	& fq_fonte_diag,fqfonte_diag,dtime,t_coup, &
523	& precip_snow,xtprecip_snow,precip_rain,xtprecip_rain, snow_prec,xtsnow_prec, &
524	& xtspechum,spechum,ps,Rland_ice, &
525	& xtevap,xtsnow,fqcalving_diag, &
526	& knindex,is_lic,run_off_lic_diag,coeff_rel_diag &
527	& )
528
529	! call fonte_neige_export_xtrun_off_lic_0(knon,xtrun_off_lic_0_diag)
530
531	#endif
532	!#ifdef ISO
533
534
535	WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0.
536	zfra(1:knon) = MAX(0.0,MIN(1.0,snow(1:knon)/(snow(1:knon)+10.0)))
537
538
539	END IF ! landice_opt
540
541
542	!****************************************************************************************
543	! Send run-off on land-ice to coupler if coupled ocean.
544	! run_off_lic has been calculated in fonte_neige or surf_inlandsis
545	! If landice_opt>=2, corresponding call is done from surf_land_orchidee
546	!****************************************************************************************
547	IF (type_ocean=='couple' .AND. landice_opt .LT. 2) THEN
548	! Compress fraction where run_off_lic is active (here all pctsrf(is_lic))
549	run_off_lic_frac(:)=0.0
550	DO j = 1, knon
551	i = knindex(j)
552	run_off_lic_frac(j) = pctsrf(i,is_lic)
553	ENDDO
554
555	CALL cpl_send_landice_fields(itime, knon, knindex, run_off_lic, run_off_lic_frac)
556	ENDIF
557
558	! transfer runoff rate [kg/m2/s](!) to physiq for output
559	runoff(1:knon)=run_off_lic(1:knon)/dtime
560
561	snow_o=0.
562	zfra_o = 0.
563	DO j = 1, knon
564	i = knindex(j)
565	snow_o(i) = snow(j)
566	zfra_o(i) = zfra(j)
567	ENDDO
568
569
570	!albedo SB >>>
571	select case(NSW)
572	case(2)
573	alb_dir(1:knon,1)=alb1(1:knon)
574	alb_dir(1:knon,2)=alb2(1:knon)
575	case(4)
576	alb_dir(1:knon,1)=alb1(1:knon)
577	alb_dir(1:knon,2)=alb2(1:knon)
578	alb_dir(1:knon,3)=alb2(1:knon)
579	alb_dir(1:knon,4)=alb2(1:knon)
580	case(6)
581	alb_dir(1:knon,1)=alb1(1:knon)
582	alb_dir(1:knon,2)=alb1(1:knon)
583	alb_dir(1:knon,3)=alb1(1:knon)
584	alb_dir(1:knon,4)=alb2(1:knon)
585	alb_dir(1:knon,5)=alb2(1:knon)
586	alb_dir(1:knon,6)=alb2(1:knon)
587
588	IF ((landice_opt .EQ. 1) .AND. (iflag_albcalc .EQ. 2)) THEN
589	alb_dir(1:knon,1)=alb6(1:knon,1)
590	alb_dir(1:knon,2)=alb6(1:knon,2)
591	alb_dir(1:knon,3)=alb6(1:knon,3)
592	alb_dir(1:knon,4)=alb6(1:knon,4)
593	alb_dir(1:knon,5)=alb6(1:knon,5)
594	alb_dir(1:knon,6)=alb6(1:knon,6)
595	ENDIF
596
597	end select
598	alb_dif=alb_dir
599	!albedo SB <<<
600
601
602	END SUBROUTINE surf_landice
603	!
604	!****************************************************************************************
605	!
606	END MODULE surf_landice_mod
607
608
609

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