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surf_landice_mod.F90 @ 5008

Last change on this file since 5008 was 4368, checked in by lguez, 2 years ago
Sync latest trunk changes to Ocean_skin
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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, temp_air, spechum, &
15	AcoefH, AcoefQ, BcoefH, BcoefQ, &
16	AcoefU, AcoefV, BcoefU, BcoefV, &
17	ps, u1, v1, gustiness, rugoro, pctsrf, &
18	snow, qsurf, qsol, agesno, &
19	tsoil, z0m, z0h, SFRWL, alb_dir, alb_dif, evap, fluxsens, fluxlat, &
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_output_var_mod
37	#ifdef ISO
38	USE fonte_neige_mod, ONLY : xtrun_off_lic
39	USE infotrac_phy, ONLY : ntiso,niso
40	USE isotopes_routines_mod, ONLY: calcul_iso_surf_lic_vectall
41	#ifdef ISOVERIF
42	use isotopes_mod, ONLY: iso_eau,ridicule
43	use isotopes_verif_mod
44	#endif
45	#endif
46	USE geometry_mod, ONLY : longitude,latitude
47
48	!FC
49	USE ioipsl_getin_p_mod, ONLY : getin_p
50
51
52	#ifdef CPP_INLANDSIS
53	USE surf_inlandsis_mod, ONLY : surf_inlandsis
54	#endif
55
56	USE indice_sol_mod
57
58
59	! INCLUDE "indicesol.h"
60	INCLUDE "dimsoil.h"
61	INCLUDE "YOMCST.h"
62	INCLUDE "clesphys.h"
63
64	! Input variables
65	!****************************************************************************************
66	INTEGER, INTENT(IN) :: itime, knon
67	INTEGER, DIMENSION(klon), INTENT(in) :: knindex
68	REAL, INTENT(in) :: dtime
69	REAL, DIMENSION(klon), INTENT(IN) :: swnet ! net shortwave radiance
70	REAL, DIMENSION(klon), INTENT(IN) :: lwnet ! net longwave radiance
71	REAL, DIMENSION(klon), INTENT(IN) :: tsurf
72	REAL, DIMENSION(klon), INTENT(IN) :: p1lay
73	REAL, DIMENSION(klon), INTENT(IN) :: cdragh, cdragm
74	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
75	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
76	REAL, DIMENSION(klon), INTENT(IN) :: AcoefH, AcoefQ
77	REAL, DIMENSION(klon), INTENT(IN) :: BcoefH, BcoefQ
78	REAL, DIMENSION(klon), INTENT(IN) :: AcoefU, AcoefV, BcoefU, BcoefV
79	REAL, DIMENSION(klon), INTENT(IN) :: ps
80	REAL, DIMENSION(klon), INTENT(IN) :: u1, v1, gustiness
81	REAL, DIMENSION(klon), INTENT(IN) :: rugoro
82	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
83	#ifdef ISO
84	REAL, DIMENSION(ntiso,klon), INTENT(IN) :: xtprecip_rain, xtprecip_snow
85	REAL, DIMENSION(ntiso,klon), INTENT(IN) :: xtspechum
86	#endif
87
88	LOGICAL, INTENT(IN) :: debut !true if first step
89	LOGICAL, INTENT(IN) :: lafin !true if last step
90	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
91	REAL, DIMENSION(klon), INTENT(IN) :: rmu0
92	REAL, DIMENSION(klon), INTENT(IN) :: lwdownm !ylwdown
93	REAL, DIMENSION(klon), INTENT(IN) :: albedo !mean albedo
94	REAL, DIMENSION(klon), INTENT(IN) :: pphi1
95	REAL, DIMENSION(klon), INTENT(IN) :: alt !mean altitude of the grid box
96	REAL, DIMENSION(klon), INTENT(IN) :: slope !mean slope in grid box
97	REAL, DIMENSION(klon), INTENT(IN) :: cloudf !total cloud fraction
98
99	! In/Output variables
100	!****************************************************************************************
101	REAL, DIMENSION(klon), INTENT(INOUT) :: snow, qsol
102	REAL, DIMENSION(klon), INTENT(INOUT) :: agesno
103	REAL, DIMENSION(klon, nsoilmx), INTENT(INOUT) :: tsoil
104	#ifdef ISO
105	REAL, DIMENSION(niso,klon), INTENT(INOUT) :: xtsnow, xtsol
106	REAL, DIMENSION(niso,klon), INTENT(INOUT) :: Rland_ice
107	#endif
108
109	! Output variables
110	!****************************************************************************************
111	REAL, DIMENSION(klon), INTENT(OUT) :: qsurf
112	REAL, DIMENSION(klon), INTENT(OUT) :: z0m, z0h
113	!albedo SB >>>
114	! REAL, DIMENSION(klon), INTENT(OUT) :: alb1 ! new albedo in visible SW interval
115	! REAL, DIMENSION(klon), INTENT(OUT) :: alb2 ! new albedo in near IR interval
116	REAL, DIMENSION(6), INTENT(IN) :: SFRWL
117	REAL, DIMENSION(klon,nsw), INTENT(OUT) :: alb_dir,alb_dif
118	!albedo SB <<<
119	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat
120	REAL, DIMENSION(klon), INTENT(OUT) :: tsurf_new
121	REAL, DIMENSION(klon), INTENT(OUT) :: dflux_s, dflux_l
122	REAL, DIMENSION(klon), INTENT(OUT) :: flux_u1, flux_v1
123
124	REAL, DIMENSION(klon), INTENT(OUT) :: alb3
125	REAL, DIMENSION(klon), INTENT(OUT) :: qsnow !column water in snow [kg/m2]
126	REAL, DIMENSION(klon), INTENT(OUT) :: snowhgt !Snow height (m)
127	REAL, DIMENSION(klon), INTENT(OUT) :: to_ice
128	REAL, DIMENSION(klon), INTENT(OUT) :: sissnow
129	REAL, DIMENSION(klon), INTENT(OUT) :: runoff !Land ice runoff
130	#ifdef ISO
131	REAL, DIMENSION(ntiso,klon), INTENT(OUT) :: xtevap
132	! real, DIMENSION(niso,klon) :: xtrun_off_lic_0_diag ! est une variable globale de
133	! fonte_neige
134	#endif
135
136
137	! Local variables
138	!****************************************************************************************
139	REAL, DIMENSION(klon) :: soilcap, soilflux
140	REAL, DIMENSION(klon) :: cal, beta, dif_grnd
141	REAL, DIMENSION(klon) :: zfra, alb_neig
142	REAL, DIMENSION(klon) :: radsol
143	REAL, DIMENSION(klon) :: u0, v0, u1_lay, v1_lay, ustar
144	INTEGER :: i,j,nt
145	REAL, DIMENSION(klon) :: fqfonte,ffonte
146	REAL, DIMENSION(klon) :: run_off_lic_frac
147	#ifdef ISO
148	real, parameter :: t_coup = 273.15
149	real, dimension(klon) :: fqfonte_diag
150	real, dimension(klon) :: fq_fonte_diag
151	real, dimension(klon) :: snow_evap_diag
152	real, dimension(klon) :: fqcalving_diag
153	real max_eau_sol_diag
154	real, dimension(klon) :: runoff_diag
155	real, dimension(klon) :: run_off_lic_diag
156	real :: coeff_rel_diag
157	integer ixt
158	REAL, DIMENSION(niso,klon) :: xtsnow_prec,xtsol_prec
159	REAL, DIMENSION(klon) :: snow_prec,qsol_prec
160	! real, DIMENSION(klon) :: run_off_lic_0_diag
161	#endif
162
163	REAL, DIMENSION(klon) :: emis_new !Emissivity
164	REAL, DIMENSION(klon) :: swdown,lwdown
165	REAL, DIMENSION(klon) :: precip_snow_adv, snow_adv !Snow Drift precip./advection (not used in inlandsis)
166	REAL, DIMENSION(klon) :: erod !erosion of surface snow (flux, kg/m2/s like evap)
167	REAL, DIMENSION(klon) :: zsl_height, wind_velo !surface layer height, wind spd
168	REAL, DIMENSION(klon) :: dens_air, snow_cont_air !air density; snow content air
169	REAL, DIMENSION(klon) :: alb_soil !albedo of underlying ice
170	REAL, DIMENSION(klon) :: pexner !Exner potential
171	REAL :: pref
172	REAL, DIMENSION(klon,nsoilmx) :: tsoil0 !modif
173	REAL :: dtis ! subtimestep
174	LOGICAL :: debut_is, lafin_is ! debut and lafin for inlandsis
175
176	CHARACTER (len = 20) :: modname = 'surf_landice'
177	CHARACTER (len = 80) :: abort_message
178
179
180	REAL,DIMENSION(klon) :: alb1,alb2
181	REAL, DIMENSION (klon,6) :: alb6
182	! End definition
183	!****************************************************************************************
184	!FC
185	!FC
186	REAL,SAVE :: alb_vis_sno_lic
187	!$OMP THREADPRIVATE(alb_vis_sno_lic)
188	REAL,SAVE :: alb_nir_sno_lic
189	!$OMP THREADPRIVATE(alb_nir_sno_lic)
190	LOGICAL, SAVE :: firstcall = .TRUE.
191	!$OMP THREADPRIVATE(firstcall)
192
193
194	!FC firtscall initializations
195	!******************************************************************************************
196	#ifdef ISO
197	#ifdef ISOVERIF
198	! write(,) 'surf_land_ice 1499'
199	do i=1,knon
200	if (iso_eau.gt.0) then
201	call iso_verif_egalite_choix(xtsnow(iso_eau,i),snow(i), &
202	& 'surf_land_ice 126',errmax,errmaxrel)
203	endif !if (iso_eau.gt.0) then
204	enddo !do i=1,knon
205	#endif
206	#endif
207
208	IF (firstcall) THEN
209	alb_vis_sno_lic=0.77
210	CALL getin_p('alb_vis_sno_lic',alb_vis_sno_lic)
211	PRINT*, 'alb_vis_sno_lic',alb_vis_sno_lic
212	alb_nir_sno_lic=0.77
213	CALL getin_p('alb_nir_sno_lic',alb_nir_sno_lic)
214	PRINT*, 'alb_nir_sno_lic',alb_nir_sno_lic
215
216	! z0m=1.e-3
217	! z0h = z0m
218	firstcall=.false.
219	ENDIF
220	!******************************************************************************************
221	!
222	! Initialize output variables
223	alb3(:) = 999999.
224	alb2(:) = 999999.
225	alb1(:) = 999999.
226
227	runoff(:) = 0.
228	!****************************************************************************************
229	! Calculate total absorbed radiance at surface
230	!
231	!****************************************************************************************
232	radsol(:) = 0.0
233	radsol(1:knon) = swnet(1:knon) + lwnet(1:knon)
234
235	!****************************************************************************************
236	! landice_opt = 0 : soil_model, calcul_flux, fonte_neige, ...
237	! landice_opt = 1 : prepare and call INterace Lmdz SISvat (INLANDSIS)
238	!****************************************************************************************
239
240
241	IF (landice_opt .EQ. 1) THEN
242
243	!****************************************************************************************
244	! CALL to INLANDSIS interface
245	!****************************************************************************************
246	#ifdef CPP_INLANDSIS
247
248	#ifdef ISO
249	CALL abort_gcm('surf_landice 235','isotopes pas dans INLANDSIS',1)
250	#endif
251
252	debut_is=debut
253	lafin_is=.false.
254	! Suppose zero surface speed
255	u0(:) = 0.0
256	v0(:) = 0.0
257
258
259	CALL calcul_flux_wind(knon, dtime, &
260	u0, v0, u1, v1, gustiness, cdragm, &
261	AcoefU, AcoefV, BcoefU, BcoefV, &
262	p1lay, temp_air, &
263	flux_u1, flux_v1)
264
265
266	! Set constants and compute some input for SISVAT
267	! = 1000 hPa
268	! and calculate incoming flux for SW and LW interval: swdown, lwdown
269	swdown(:) = 0.0
270	lwdown(:) = 0.0
271	snow_cont_air(:) = 0. ! the snow content in air is not a prognostic variable of the model
272	alb_soil(:) = 0.4 ! before albedo(:) but here it is the ice albedo that we have to set
273	ustar(:) = 0.
274	pref = 100000.
275	DO i = 1, knon
276	swdown(i) = swnet(i)/(1-albedo(i))
277	lwdown(i) = lwdownm(i)
278	wind_velo(i) = u1(i)2 + v1(i)2
279	wind_velo(i) = wind_velo(i)**0.5
280	pexner(i) = (p1lay(i)/pref)**(RD/RCPD)
281	dens_air(i) = p1lay(i)/RD/temp_air(i) ! dry air density
282	zsl_height(i) = pphi1(i)/RG
283	tsoil0(i,:) = tsoil(i,:)
284	ustar(i)= (cdragm(i)(wind_velo(i)2))*0.5
285	END DO
286
287
288
289	dtis=dtime
290
291	IF (lafin) THEN
292	lafin_is=.true.
293	END IF
294
295	CALL surf_inlandsis(knon, rlon, rlat, knindex, itime, dtis, debut_is, lafin_is,&
296	rmu0, swdown, lwdown, albedo, pexner, ps, p1lay, precip_rain, precip_snow, &
297	zsl_height, wind_velo, ustar, temp_air, dens_air, spechum, tsurf,&
298	rugoro, snow_cont_air, alb_soil, alt, slope, cloudf, &
299	radsol, qsol, tsoil0, snow, zfra, snowhgt, qsnow, to_ice, sissnow,agesno, &
300	AcoefH, AcoefQ, BcoefH, BcoefQ, cdragm, cdragh, &
301	run_off_lic, fqfonte, ffonte, evap, erod, fluxsens, fluxlat,dflux_s, dflux_l, &
302	tsurf_new, alb1, alb2, alb3, alb6, &
303	emis_new, z0m, z0h, qsurf)
304
305	debut_is=.false.
306
307
308	! Treatment of snow melting and calving
309
310	! for consistency with standard LMDZ, add calving to run_off_lic
311	run_off_lic(:)=run_off_lic(:) + to_ice(:)
312
313	DO i = 1, knon
314	ffonte_global(knindex(i),is_lic) = ffonte(i)
315	fqfonte_global(knindex(i),is_lic) = fqfonte(i)! net melting= melting - refreezing
316	fqcalving_global(knindex(i),is_lic) = to_ice(i) ! flux
317	runofflic_global(knindex(i)) = run_off_lic(i)
318	ENDDO
319	! Here, we assume that the calving term is equal to the to_ice term
320	! (no ice accumulation)
321
322
323	#else
324	abort_message='Pb de coherence: landice_opt = 1 mais CPP_INLANDSIS = .false.'
325	CALL abort_physic(modname,abort_message,1)
326	#endif
327
328
329
330	ELSE
331
332	!****************************************************************************************
333	! Soil calculations
334	!
335	!****************************************************************************************
336
337	! EV: use calbeta
338	CALL calbeta(dtime, is_lic, knon, snow, qsol, beta, cal, dif_grnd)
339
340
341	! use soil model and recalculate properly cal
342	IF (soil_model) THEN
343	CALL soil(dtime, is_lic, knon, snow, tsurf, qsol, &
344	& longitude(knindex(1:knon)), latitude(knindex(1:knon)), tsoil, soilcap, soilflux)
345
346	cal(1:knon) = RCPD / soilcap(1:knon)
347	radsol(1:knon) = radsol(1:knon) + soilflux(1:knon)
348	ELSE
349	cal = RCPD * calice
350	WHERE (snow > 0.0) cal = RCPD * calsno
351	ENDIF
352
353
354	!****************************************************************************************
355	! Calulate fluxes
356	!
357	!****************************************************************************************
358	! beta(:) = 1.0
359	! dif_grnd(:) = 0.0
360
361	! Suppose zero surface speed
362	u0(:)=0.0
363	v0(:)=0.0
364	u1_lay(:) = u1(:) - u0(:)
365	v1_lay(:) = v1(:) - v0(:)
366
367	CALL calcul_fluxs(knon, is_lic, dtime, &
368	tsurf, p1lay, cal, beta, cdragh, cdragh, ps, &
369	precip_rain, precip_snow, snow, qsurf, &
370	radsol, dif_grnd, temp_air, spechum, u1_lay, v1_lay, gustiness, &
371	1.,AcoefH, AcoefQ, BcoefH, BcoefQ, &
372	tsurf_new, evap, fluxlat, fluxsens, dflux_s, dflux_l)
373
374
375	#ifdef ISO
376	! verif
377	#ifdef ISOVERIF
378	!write(,) 'surf_land_ice 1499'
379	do i=1,knon
380	if (iso_eau.gt.0) then
381	if (snow(i).gt.ridicule) then
382	call iso_verif_egalite_choix(xtsnow(iso_eau,i),snow(i), &
383	& 'surf_land_ice 1151',errmax,errmaxrel)
384	endif !if ((snow(i).gt.ridicule)) then
385	endif !if (iso_eau.gt.0) then
386	enddo !do i=1,knon
387	#endif
388	!#ifdef ISOVERIF
389
390	do i=1,knon
391	snow_prec(i)=snow(i)
392	do ixt=1,niso
393	xtsnow_prec(ixt,i)=xtsnow(ixt,i)
394	enddo !do ixt=1,niso
395	! initialisation:
396	fq_fonte_diag(i)=0.0
397	fqfonte_diag(i)=0.0
398	snow_evap_diag(i)=0.0
399	enddo !do i=1,knon
400	#endif
401	!#ifdef ISO
402	CALL calcul_flux_wind(knon, dtime, &
403	u0, v0, u1, v1, gustiness, cdragm, &
404	AcoefU, AcoefV, BcoefU, BcoefV, &
405	p1lay, temp_air, &
406	flux_u1, flux_v1)
407
408	!****************************************************************************************
409	! Calculate snow height, age, run-off,..
410	!
411	!****************************************************************************************
412	CALL fonte_neige(knon, is_lic, knindex, dtime, &
413	tsurf, precip_rain, precip_snow, &
414	snow, qsol, tsurf_new, evap &
415	#ifdef ISO
416	& ,fq_fonte_diag,fqfonte_diag,snow_evap_diag,fqcalving_diag &
417	& ,max_eau_sol_diag,runoff_diag,run_off_lic_diag,coeff_rel_diag &
418	#endif
419	& )
420
421
422	#ifdef ISO
423	#ifdef ISOVERIF
424	do i=1,knon
425	if (iso_eau.gt.0) then
426	call iso_verif_egalite_choix(Rland_ice(iso_eau,i),1.0, &
427	& 'surf_landice_mod 217',errmax,errmaxrel)
428	endif !if (iso_eau.gt.0) then
429	enddo !do i=1,knon
430	#endif
431	!#ifdef ISOVERIF
432
433	call calcul_iso_surf_lic_vectall(klon,knon, &
434	& evap,snow_evap_diag,Tsurf_new,snow, &
435	& fq_fonte_diag,fqfonte_diag,dtime,t_coup, &
436	& precip_snow,xtprecip_snow,precip_rain,xtprecip_rain, snow_prec,xtsnow_prec, &
437	& xtspechum,spechum,ps,Rland_ice, &
438	& xtevap,xtsnow,fqcalving_diag, &
439	& knindex,is_lic,run_off_lic_diag,coeff_rel_diag &
440	& )
441
442	! call fonte_neige_export_xtrun_off_lic_0(knon,xtrun_off_lic_0_diag)
443
444	#endif
445	!#ifdef ISO
446
447
448	!****************************************************************************************
449	! Calculate albedo
450	!
451	!****************************************************************************************
452	CALL albsno(klon,knon,dtime,agesno(:),alb_neig(:), precip_snow(:))
453
454	WHERE (snow(1 : knon) .LT. 0.0001) agesno(1 : knon) = 0.
455	zfra(1:knon) = MAX(0.0,MIN(1.0,snow(1:knon)/(snow(1:knon)+10.0)))
456	alb1(1:knon) = alb_neig(1:knon)*zfra(1:knon) + &
457	0.6 * (1.0-zfra(1:knon))
458	!
459	!IM: plusieurs choix/tests sur l'albedo des "glaciers continentaux"
460	! alb1(1 : knon) = 0.6 !IM cf FH/GK
461	! alb1(1 : knon) = 0.82
462	! alb1(1 : knon) = 0.77 !211003 Ksta0.77
463	! alb1(1 : knon) = 0.8 !KstaTER0.8 & LMD_ARMIP5
464	!IM: KstaTER0.77 & LMD_ARMIP6
465
466	! Attantion: alb1 and alb2 are not the same!
467	alb1(1:knon) = alb_vis_sno_lic
468	alb2(1:knon) = alb_nir_sno_lic
469
470
471	!****************************************************************************************
472	! Rugosity
473	!
474	!****************************************************************************************
475	z0m=1.e-3
476	z0h = z0m
477	z0m = SQRT(z0m2+rugoro2)
478
479
480
481	END IF ! landice_opt
482
483
484	!****************************************************************************************
485	! Send run-off on land-ice to coupler if coupled ocean.
486	! run_off_lic has been calculated in fonte_neige or surf_inlandsis
487	! If landice_opt>=2, corresponding call is done from surf_land_orchidee
488	!****************************************************************************************
489	IF (type_ocean=='couple' .AND. landice_opt .LT. 2) THEN
490	! Compress fraction where run_off_lic is active (here all pctsrf(is_lic))
491	run_off_lic_frac(:)=0.0
492	DO j = 1, knon
493	i = knindex(j)
494	run_off_lic_frac(j) = pctsrf(i,is_lic)
495	ENDDO
496
497	CALL cpl_send_landice_fields(itime, knon, knindex, run_off_lic, run_off_lic_frac)
498	ENDIF
499
500	! transfer runoff rate [kg/m2/s](!) to physiq for output
501	runoff(1:knon)=run_off_lic(1:knon)/dtime
502
503
504	!****************************************************************************************
505	! Etienne: comment these lines because of duplication just below
506	! snow_o=0.
507	! zfra_o = 0.
508	! DO j = 1, knon
509	! i = knindex(j)
510	! snow_o(i) = snow(j)
511	! zfra_o(i) = zfra(j)
512	! ENDDO
513	!
514	!****************************************************************************************
515	snow_o=0.
516	zfra_o = 0.
517	DO j = 1, knon
518	i = knindex(j)
519	snow_o(i) = snow(j)
520	zfra_o(i) = zfra(j)
521	ENDDO
522
523
524	!albedo SB >>>
525	select case(NSW)
526	case(2)
527	alb_dir(1:knon,1)=alb1(1:knon)
528	alb_dir(1:knon,2)=alb2(1:knon)
529	case(4)
530	alb_dir(1:knon,1)=alb1(1:knon)
531	alb_dir(1:knon,2)=alb2(1:knon)
532	alb_dir(1:knon,3)=alb2(1:knon)
533	alb_dir(1:knon,4)=alb2(1:knon)
534	case(6)
535	alb_dir(1:knon,1)=alb1(1:knon)
536	alb_dir(1:knon,2)=alb1(1:knon)
537	alb_dir(1:knon,3)=alb1(1:knon)
538	alb_dir(1:knon,4)=alb2(1:knon)
539	alb_dir(1:knon,5)=alb2(1:knon)
540	alb_dir(1:knon,6)=alb2(1:knon)
541
542	IF ((landice_opt .EQ. 1) .AND. (iflag_albcalc .EQ. 2)) THEN
543	alb_dir(1:knon,1)=alb6(1:knon,1)
544	alb_dir(1:knon,2)=alb6(1:knon,2)
545	alb_dir(1:knon,3)=alb6(1:knon,3)
546	alb_dir(1:knon,4)=alb6(1:knon,4)
547	alb_dir(1:knon,5)=alb6(1:knon,5)
548	alb_dir(1:knon,6)=alb6(1:knon,6)
549	ENDIF
550
551	end select
552	alb_dif=alb_dir
553	!albedo SB <<<
554
555
556
557
558	END SUBROUTINE surf_landice
559	!
560	!****************************************************************************************
561	!
562	END MODULE surf_landice_mod
563
564
565

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