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fonte_neige_mod.F90 @ 4072

Last change on this file since 4072 was 4033, checked in by crisi, 3 years ago
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1	!
2	! $Header$
3	!
4	MODULE fonte_neige_mod
5	!
6	! This module will treat the process of snow, melting, accumulating, calving, in
7	! case of simplified soil model.
8	!
9	!****************************************************************************************
10	USE dimphy, ONLY : klon
11	USE indice_sol_mod
12
13	IMPLICIT NONE
14	SAVE
15
16	! run_off_ter and run_off_lic are the runoff at the compressed grid knon for
17	! land and land-ice respectively
18	! Note: run_off_lic is used in mod_landice and therfore not private
19	REAL, ALLOCATABLE, DIMENSION(:), PRIVATE :: run_off_ter
20	!$OMP THREADPRIVATE(run_off_ter)
21	REAL, ALLOCATABLE, DIMENSION(:) :: run_off_lic
22	!$OMP THREADPRIVATE(run_off_lic)
23
24	! run_off_lic_0 is the runoff at land-ice a time-step earlier, on the global 1D array grid
25	REAL, ALLOCATABLE, DIMENSION(:), PRIVATE :: run_off_lic_0
26	!$OMP THREADPRIVATE(run_off_lic_0)
27
28	REAL, PRIVATE :: tau_calv
29	!$OMP THREADPRIVATE(tau_calv)
30	REAL, ALLOCATABLE, DIMENSION(:,:) :: ffonte_global
31	!$OMP THREADPRIVATE(ffonte_global)
32	REAL, ALLOCATABLE, DIMENSION(:,:) :: fqfonte_global
33	!$OMP THREADPRIVATE(fqfonte_global)
34	REAL, ALLOCATABLE, DIMENSION(:,:) :: fqcalving_global
35	!$OMP THREADPRIVATE(fqcalving_global)
36	REAL, ALLOCATABLE, DIMENSION(:) :: runofflic_global
37	!$OMP THREADPRIVATE(runofflic_global)
38	#ifdef ISO
39	REAL, ALLOCATABLE, DIMENSION(:,:), PRIVATE :: xtrun_off_ter
40	!$OMP THREADPRIVATE(xtrun_off_ter)
41	REAL, ALLOCATABLE, DIMENSION(:,:) :: xtrun_off_lic
42	!$OMP THREADPRIVATE(xtrun_off_lic)
43	REAL, ALLOCATABLE, DIMENSION(:,:), PRIVATE :: xtrun_off_lic_0
44	!$OMP THREADPRIVATE(xtrun_off_lic_0)
45	REAL, ALLOCATABLE, DIMENSION(:,:,:), PRIVATE :: fxtfonte_global
46	!$OMP THREADPRIVATE(fxtfonte_global)
47	REAL, ALLOCATABLE, DIMENSION(:,:,:), PRIVATE :: fxtcalving_global
48	!$OMP THREADPRIVATE(fxtcalving_global)
49	REAL, ALLOCATABLE, DIMENSION(:,:), PRIVATE :: xtrunofflic_global
50	!$OMP THREADPRIVATE(xtrunofflic_global)
51	#endif
52
53	CONTAINS
54	!
55	!****************************************************************************************
56	!
57	SUBROUTINE fonte_neige_init(restart_runoff)
58
59	! This subroutine allocates and initialize variables in the module.
60	! The variable run_off_lic_0 is initialized to the field read from
61	! restart file. The other variables are initialized to zero.
62	!
63	!****************************************************************************************
64	! Input argument
65	REAL, DIMENSION(klon), INTENT(IN) :: restart_runoff
66
67	! Local variables
68	INTEGER :: error
69	CHARACTER (len = 80) :: abort_message
70	CHARACTER (len = 20) :: modname = 'fonte_neige_init'
71
72
73	!****************************************************************************************
74	! Allocate run-off at landice and initilize with field read from restart
75	!
76	!****************************************************************************************
77
78	ALLOCATE(run_off_lic_0(klon), stat = error)
79	IF (error /= 0) THEN
80	abort_message='Pb allocation run_off_lic'
81	CALL abort_physic(modname,abort_message,1)
82	ENDIF
83	run_off_lic_0(:) = restart_runoff(:)
84
85	!****************************************************************************************
86	! Allocate other variables and initilize to zero
87	!
88	!****************************************************************************************
89	ALLOCATE(run_off_ter(klon), stat = error)
90	IF (error /= 0) THEN
91	abort_message='Pb allocation run_off_ter'
92	CALL abort_physic(modname,abort_message,1)
93	ENDIF
94	run_off_ter(:) = 0.
95
96	ALLOCATE(run_off_lic(klon), stat = error)
97	IF (error /= 0) THEN
98	abort_message='Pb allocation run_off_lic'
99	CALL abort_physic(modname,abort_message,1)
100	ENDIF
101	run_off_lic(:) = 0.
102
103	ALLOCATE(ffonte_global(klon,nbsrf))
104	IF (error /= 0) THEN
105	abort_message='Pb allocation ffonte_global'
106	CALL abort_physic(modname,abort_message,1)
107	ENDIF
108	ffonte_global(:,:) = 0.0
109
110	ALLOCATE(fqfonte_global(klon,nbsrf))
111	IF (error /= 0) THEN
112	abort_message='Pb allocation fqfonte_global'
113	CALL abort_physic(modname,abort_message,1)
114	ENDIF
115	fqfonte_global(:,:) = 0.0
116
117	ALLOCATE(fqcalving_global(klon,nbsrf))
118	IF (error /= 0) THEN
119	abort_message='Pb allocation fqcalving_global'
120	CALL abort_physic(modname,abort_message,1)
121	ENDIF
122	fqcalving_global(:,:) = 0.0
123
124	ALLOCATE(runofflic_global(klon))
125	IF (error /= 0) THEN
126	abort_message='Pb allocation runofflic_global'
127	CALL abort_physic(modname,abort_message,1)
128	ENDIF
129	runofflic_global(:) = 0.0
130
131	!****************************************************************************************
132	! Read tau_calv
133	!
134	!****************************************************************************************
135	CALL conf_interface(tau_calv)
136
137
138	END SUBROUTINE fonte_neige_init
139
140	#ifdef ISO
141	SUBROUTINE fonte_neige_init_iso(xtrestart_runoff)
142
143	! This subroutine allocates and initialize variables in the module.
144	! The variable run_off_lic_0 is initialized to the field read from
145	! restart file. The other variables are initialized to zero.
146
147	use infotrac_phy, ONLY: niso
148	#ifdef ISOVERIF
149	USE isotopes_mod, ONLY: iso_eau,iso_HDO
150	USE isotopes_verif_mod
151	#endif
152	!
153	!****************************************************************************************
154	! Input argument
155	REAL, DIMENSION(niso,klon), INTENT(IN) :: xtrestart_runoff
156
157	! Local variables
158	INTEGER :: error
159	CHARACTER (len = 80) :: abort_message
160	CHARACTER (len = 20) :: modname = 'fonte_neige_init'
161	integer i
162
163
164	!****************************************************************************************
165	! Allocate run-off at landice and initilize with field read from restart
166	!
167	!****************************************************************************************
168
169	ALLOCATE(xtrun_off_lic_0(niso,klon), stat = error)
170	IF (error /= 0) THEN
171	abort_message='Pb allocation run_off_lic'
172	CALL abort_gcm(modname,abort_message,1)
173	ENDIF
174
175	xtrun_off_lic_0(:,:) = xtrestart_runoff(:,:)
176
177	#ifdef ISOVERIF
178	if (iso_eau.gt.0) then
179	call iso_verif_egalite_vect1D( &
180	& xtrun_off_lic_0,run_off_lic_0,'fonte_neige 100', &
181	& niso,klon)
182	endif !if (iso_eau.gt.0) then
183	#endif
184
185	!****************************************************************************************
186	! Allocate other variables and initilize to zero
187	!
188	!****************************************************************************************
189
190	ALLOCATE(xtrun_off_ter(niso,klon), stat = error)
191	IF (error /= 0) THEN
192	abort_message='Pb allocation xtrun_off_ter'
193	CALL abort_gcm(modname,abort_message,1)
194	ENDIF
195	xtrun_off_ter(:,:) = 0.
196
197	ALLOCATE(xtrun_off_lic(niso,klon), stat = error)
198	IF (error /= 0) THEN
199	abort_message='Pb allocation xtrun_off_lic'
200	CALL abort_gcm(modname,abort_message,1)
201	ENDIF
202	xtrun_off_lic(:,:) = 0.
203
204	ALLOCATE(fxtfonte_global(niso,klon,nbsrf))
205	IF (error /= 0) THEN
206	abort_message='Pb allocation fxtfonte_global'
207	CALL abort_gcm(modname,abort_message,1)
208	ENDIF
209	fxtfonte_global(:,:,:) = 0.0
210
211	ALLOCATE(fxtcalving_global(niso,klon,nbsrf))
212	IF (error /= 0) THEN
213	abort_message='Pb allocation fxtcalving_global'
214	CALL abort_gcm(modname,abort_message,1)
215	ENDIF
216	fxtcalving_global(:,:,:) = 0.0
217
218	ALLOCATE(xtrunofflic_global(niso,klon))
219	IF (error /= 0) THEN
220	abort_message='Pb allocation xtrunofflic_global'
221	CALL abort_gcm(modname,abort_message,1)
222	ENDIF
223	xtrunofflic_global(:,:) = 0.0
224
225	END SUBROUTINE fonte_neige_init_iso
226	#endif
227	!
228	!
229	!****************************************************************************************
230	!
231	SUBROUTINE fonte_neige( knon, nisurf, knindex, dtime, &
232	tsurf, precip_rain, precip_snow, &
233	snow, qsol, tsurf_new, evap &
234	#ifdef ISO
235	& ,fq_fonte_diag,fqfonte_diag,snow_evap_diag,fqcalving_diag &
236	& ,max_eau_sol_diag,runoff_diag,run_off_lic_diag,coeff_rel_diag &
237	#endif
238	& )
239
240	USE indice_sol_mod
241	#ifdef ISO
242	use infotrac_phy, ONLY: niso
243	!use isotopes_mod, ONLY: ridicule_snow,iso_eau,iso_HDO
244	#ifdef ISOVERIF
245	use isotopes_verif_mod
246	#endif
247	#endif
248
249	! Routine de traitement de la fonte de la neige dans le cas du traitement
250	! de sol simplifie!
251	! LF 03/2001
252	! input:
253	! knon nombre de points a traiter
254	! nisurf surface a traiter
255	! knindex index des mailles valables pour surface a traiter
256	! dtime
257	! tsurf temperature de surface
258	! precip_rain precipitations liquides
259	! precip_snow precipitations solides
260	!
261	! input/output:
262	! snow champs hauteur de neige
263	! qsol hauteur d'eau contenu dans le sol
264	! tsurf_new temperature au sol
265	! evap
266	!
267	INCLUDE "YOETHF.h"
268	INCLUDE "YOMCST.h"
269	INCLUDE "FCTTRE.h"
270	INCLUDE "clesphys.h"
271
272	! Input variables
273	!****************************************************************************************
274	INTEGER, INTENT(IN) :: knon
275	INTEGER, INTENT(IN) :: nisurf
276	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
277	REAL , INTENT(IN) :: dtime
278	REAL, DIMENSION(klon), INTENT(IN) :: tsurf
279	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain
280	REAL, DIMENSION(klon), INTENT(IN) :: precip_snow
281
282	! Input/Output variables
283	!****************************************************************************************
284
285	REAL, DIMENSION(klon), INTENT(INOUT) :: snow
286	REAL, DIMENSION(klon), INTENT(INOUT) :: qsol
287	REAL, DIMENSION(klon), INTENT(INOUT) :: tsurf_new
288	REAL, DIMENSION(klon), INTENT(INOUT) :: evap
289
290
291	#ifdef ISO
292	! sortie de quelques diagnostiques
293	real, dimension(klon),intent(out) :: fq_fonte_diag
294	real, dimension(klon),intent(out) :: fqfonte_diag
295	real, dimension(klon), intent(out) :: snow_evap_diag
296	real, dimension(klon), intent(out) :: fqcalving_diag
297	real, intent(out) :: max_eau_sol_diag
298	real, dimension(klon), intent(out) :: runoff_diag
299	real, dimension(klon), intent(OUT):: run_off_lic_diag
300	real, intent(OUT):: coeff_rel_diag
301	#endif
302	! Local variables
303	!****************************************************************************************
304
305	INTEGER :: i, j
306	REAL :: fq_fonte
307	REAL :: coeff_rel
308	REAL, PARAMETER :: snow_max=3000.
309	REAL, PARAMETER :: max_eau_sol = 150.0
310	!! PB temporaire en attendant mieux pour le modele de neige
311	! REAL, parameter :: chasno = RLMLT/(2.3867E+06*0.15)
312	REAL, PARAMETER :: chasno = 3.334E+05/(2.3867E+06*0.15)
313	!IM cf JLD/ GKtest
314	REAL, PARAMETER :: chaice = 3.334E+05/(2.3867E+06*0.15)
315	! fin GKtest
316	REAL, DIMENSION(klon) :: ffonte
317	REAL, DIMENSION(klon) :: fqcalving, fqfonte
318	REAL, DIMENSION(klon) :: d_ts
319	REAL, DIMENSION(klon) :: bil_eau_s, snow_evap
320
321	LOGICAL :: neige_fond
322
323	#ifdef ISO
324	max_eau_sol_diag=max_eau_sol
325	#endif
326
327	!****************************************************************************************
328	! Start calculation
329	! - Initialization
330	!
331	!****************************************************************************************
332	coeff_rel = dtime/(tau_calv * rday)
333
334	bil_eau_s(:) = 0.
335
336	!****************************************************************************************
337	! - Increment snow due to precipitation and evaporation
338	! - Calculate the water balance due to precipitation and evaporation (bil_eau_s)
339	!
340	!****************************************************************************************
341	WHERE (precip_snow > 0.)
342	snow = snow + (precip_snow * dtime)
343	END WHERE
344
345	snow_evap = 0.
346
347
348	IF (.NOT. ok_lic_cond) THEN
349	!---only positive evaporation has an impact on snow
350	!---note that this could create a bit of water
351	!---this was the default until CMIP6
352	WHERE (evap > 0. )
353	snow_evap = MIN (snow / dtime, evap) !---one cannot evaporate more than the amount of snow
354	snow = snow - snow_evap * dtime !---snow that remains on the ground
355	snow = MAX(0.0, snow) !---just in case
356	END WHERE
357
358	ELSE
359	!--now considers both positive and negative evaporation in the budget of snow
360	snow_evap = MIN (snow / dtime, evap) !---one cannot evaporate more than the amount of snow
361	snow = snow - snow_evap * dtime !---snow that remains or deposits on the ground
362	snow = MAX(0.0, snow) !---just in case
363
364	ENDIF
365
366
367	bil_eau_s(:) = (precip_rain(:) * dtime) - (evap(:) - snow_evap(:)) * dtime
368	#ifdef ISO
369	snow_evap_diag(:)=snow_evap(:)
370	coeff_rel_diag=coeff_rel
371	#endif
372
373
374	!****************************************************************************************
375	! - Calculate melting snow
376	! - Calculate calving and decrement snow, if there are to much snow
377	! - Update temperature at surface
378	!
379	!****************************************************************************************
380
381	ffonte(:) = 0.0
382	fqcalving(:) = 0.0
383	fqfonte(:) = 0.0
384
385	DO i = 1, knon
386	! Y'a-t-il fonte de neige?
387	neige_fond = (snow(i)>epsfra .OR. nisurf==is_sic .OR. nisurf==is_lic) .AND. tsurf_new(i)>=RTT
388	IF (neige_fond) THEN
389	fq_fonte = MIN( MAX((tsurf_new(i)-RTT )/chasno,0.0),snow(i))
390	ffonte(i) = fq_fonte * RLMLT/dtime
391	fqfonte(i) = fq_fonte/dtime
392	snow(i) = MAX(0., snow(i) - fq_fonte)
393	bil_eau_s(i) = bil_eau_s(i) + fq_fonte
394	tsurf_new(i) = tsurf_new(i) - fq_fonte * chasno
395	#ifdef ISO
396	fq_fonte_diag(i)=fq_fonte
397	#endif
398
399	!IM cf JLD OK
400	!IM cf JLD/ GKtest fonte aussi pour la glace
401	IF (nisurf == is_sic .OR. nisurf == is_lic ) THEN
402	fq_fonte = MAX((tsurf_new(i)-RTT )/chaice,0.0)
403	ffonte(i) = ffonte(i) + fq_fonte * RLMLT/dtime
404	IF ( ok_lic_melt ) THEN
405	fqfonte(i) = fqfonte(i) + fq_fonte/dtime
406	bil_eau_s(i) = bil_eau_s(i) + fq_fonte
407	ENDIF
408	tsurf_new(i) = RTT
409	ENDIF
410	d_ts(i) = tsurf_new(i) - tsurf(i)
411	ENDIF
412
413	! s'il y a une hauteur trop importante de neige, elle est ecretee
414	fqcalving(i) = MAX(0., snow(i) - snow_max)/dtime
415	snow(i)=MIN(snow(i),snow_max)
416	ENDDO
417	#ifdef ISO
418	DO i = 1, knon
419	fqcalving_diag(i)=fqcalving(i)
420	fqfonte_diag(i)=fqfonte(i)
421	enddo !DO i = 1, knon
422	#endif
423
424	IF (nisurf == is_ter) THEN
425	DO i = 1, knon
426	qsol(i) = qsol(i) + bil_eau_s(i)
427	run_off_ter(i) = run_off_ter(i) + MAX(qsol(i) - max_eau_sol, 0.0)
428	#ifdef ISO
429	runoff_diag(i)=MAX(qsol(i) - max_eau_sol, 0.0)
430	#endif
431	qsol(i) = MIN(qsol(i), max_eau_sol)
432	ENDDO
433	ELSE IF (nisurf == is_lic) THEN
434	DO i = 1, knon
435	j = knindex(i)
436	!--temporal filtering
437	run_off_lic(i) = coeff_relfqcalving(i) + (1.-coeff_rel)run_off_lic_0(j)
438	run_off_lic_0(j) = run_off_lic(i)
439	!--add melting snow and liquid precip to runoff of ice cap
440	run_off_lic(i) = run_off_lic(i) + fqfonte(i) + precip_rain(i)
441	ENDDO
442	ENDIF
443
444	#ifdef ISO
445	DO i = 1, klon
446	run_off_lic_diag(i)=run_off_lic(i)
447	enddo ! DO i = 1, knon
448	#endif
449
450	!****************************************************************************************
451	! Save ffonte, fqfonte and fqcalving in global arrays for each
452	! sub-surface separately
453	!
454	!****************************************************************************************
455	DO i = 1, knon
456	ffonte_global(knindex(i),nisurf) = ffonte(i)
457	fqfonte_global(knindex(i),nisurf) = fqfonte(i)
458	fqcalving_global(knindex(i),nisurf) = fqcalving(i)
459	ENDDO
460
461	IF (nisurf == is_lic) THEN
462	DO i = 1, knon
463	runofflic_global(knindex(i)) = run_off_lic(i)
464	ENDDO
465	ENDIF
466
467	END SUBROUTINE fonte_neige
468	!
469	!****************************************************************************************
470	!
471	SUBROUTINE fonte_neige_final(restart_runoff &
472	#ifdef ISO
473	& ,xtrestart_runoff &
474	#endif
475	& )
476	!
477	! This subroutine returns run_off_lic_0 for later writing to restart file.
478	!
479	#ifdef ISO
480	use infotrac_phy, ONLY: niso
481	#ifdef ISOVERIF
482	use isotopes_mod, ONLY: iso_eau
483	use isotopes_verif_mod
484	#endif
485	#endif
486	!****************************************************************************************
487	REAL, DIMENSION(klon), INTENT(OUT) :: restart_runoff
488	#ifdef ISO
489	REAL, DIMENSION(niso,klon), INTENT(OUT) :: xtrestart_runoff
490	#ifdef ISOVERIF
491	integer i
492	#endif
493	#endif
494
495	!****************************************************************************************
496	! Set the output variables
497	restart_runoff(:) = run_off_lic_0(:)
498	#ifdef ISO
499	xtrestart_runoff(:,:) = xtrun_off_lic_0(:,:)
500	#ifdef ISOVERIF
501	if (iso_eau.gt.0) then
502	do i=1,klon
503	if (iso_verif_egalite_nostop(run_off_lic_0(i), &
504	& xtrun_off_lic_0(iso_eau,i),'fonte_neige 413') &
505	& .eq.1) then
506	write(,) 'i=',i
507	stop
508	endif
509	enddo !do i=1,klon
510	endif !if (iso_eau.gt.0) then
511	#endif
512	#endif
513
514	! Deallocation of all varaibles in the module
515	! DEALLOCATE(run_off_lic_0, run_off_ter, run_off_lic, ffonte_global, &
516	! fqfonte_global, fqcalving_global)
517
518	IF (ALLOCATED(run_off_lic_0)) DEALLOCATE(run_off_lic_0)
519	IF (ALLOCATED(run_off_ter)) DEALLOCATE(run_off_ter)
520	IF (ALLOCATED(run_off_lic)) DEALLOCATE(run_off_lic)
521	IF (ALLOCATED(ffonte_global)) DEALLOCATE(ffonte_global)
522	IF (ALLOCATED(fqfonte_global)) DEALLOCATE(fqfonte_global)
523	IF (ALLOCATED(fqcalving_global)) DEALLOCATE(fqcalving_global)
524	IF (ALLOCATED(runofflic_global)) DEALLOCATE(runofflic_global)
525	#ifdef ISO
526	IF (ALLOCATED(xtrun_off_lic_0)) DEALLOCATE(xtrun_off_lic_0)
527	IF (ALLOCATED(xtrun_off_ter)) DEALLOCATE(xtrun_off_ter)
528	IF (ALLOCATED(xtrun_off_lic)) DEALLOCATE(xtrun_off_lic)
529	IF (ALLOCATED(fxtfonte_global)) DEALLOCATE(fxtfonte_global)
530	IF (ALLOCATED(fxtcalving_global)) DEALLOCATE(fxtcalving_global)
531	IF (ALLOCATED(xtrunofflic_global)) DEALLOCATE(xtrunofflic_global)
532	#endif
533
534	END SUBROUTINE fonte_neige_final
535	!
536	!****************************************************************************************
537	!
538	SUBROUTINE fonte_neige_get_vars(pctsrf, fqcalving_out, &
539	fqfonte_out, ffonte_out, run_off_lic_out &
540	#ifdef ISO
541	& ,fxtcalving_out, fxtfonte_out,xtrun_off_lic_out &
542	#endif
543	& )
544
545
546	! Cumulate ffonte, fqfonte and fqcalving respectively for
547	! all type of surfaces according to their fraction.
548	!
549	! This routine is called from physiq.F before histwrite.
550	!****************************************************************************************
551
552	USE indice_sol_mod
553	#ifdef ISO
554	use infotrac_phy, ONLY: niso
555	#endif
556
557	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
558
559	REAL, DIMENSION(klon), INTENT(OUT) :: fqcalving_out
560	REAL, DIMENSION(klon), INTENT(OUT) :: fqfonte_out
561	REAL, DIMENSION(klon), INTENT(OUT) :: ffonte_out
562	REAL, DIMENSION(klon), INTENT(OUT) :: run_off_lic_out
563
564
565	#ifdef ISO
566	REAL, DIMENSION(niso,klon), INTENT(OUT) :: fxtcalving_out
567	REAL, DIMENSION(niso,klon), INTENT(OUT) :: fxtfonte_out
568	REAL, DIMENSION(niso,klon), INTENT(OUT) :: xtrun_off_lic_out
569	integer i,ixt
570	#endif
571	INTEGER :: nisurf
572	!****************************************************************************************
573
574	ffonte_out(:) = 0.0
575	fqfonte_out(:) = 0.0
576	fqcalving_out(:) = 0.0
577	#ifdef ISO
578	fxtfonte_out(:,:) = 0.0
579	fxtcalving_out(:,:) = 0.0
580	#endif
581
582	DO nisurf = 1, nbsrf
583	ffonte_out(:) = ffonte_out(:) + ffonte_global(:,nisurf)*pctsrf(:,nisurf)
584	fqfonte_out(:) = fqfonte_out(:) + fqfonte_global(:,nisurf)*pctsrf(:,nisurf)
585	fqcalving_out(:) = fqcalving_out(:) + fqcalving_global(:,nisurf)*pctsrf(:,nisurf)
586	ENDDO
587
588	run_off_lic_out(:)=runofflic_global(:)
589
590
591	#ifdef ISO
592	DO nisurf = 1, nbsrf
593	do i=1,klon
594	do ixt=1,niso
595	fxtfonte_out(ixt,i) = fxtfonte_out(ixt,i) + fxtfonte_global(ixt,i,nisurf)*pctsrf(i,nisurf)
596	fxtcalving_out(ixt,i) = fxtcalving_out(ixt,i) + fxtcalving_global(ixt,i,nisurf)*pctsrf(i,nisurf)
597	enddo !do ixt=1,niso
598	enddo !do i=1,klon
599	enddo !DO nisurf = 1, nbsrf
600	xtrun_off_lic_out(:,:)=xtrunofflic_global(:,:)
601	#endif
602
603	END SUBROUTINE fonte_neige_get_vars
604	!
605	!****************************************************************************************
606	!
607	!#ifdef ISO
608	! subroutine fonte_neige_export_xtrun_off_lic_0(knon,xtrun_off_lic_0_diag)
609	! use infotrac_phy, ONLY: niso
610	!
611	! ! inputs
612	! INTEGER, INTENT(IN) :: knon
613	! real, INTENT(IN), DIMENSION(niso,klon) :: xtrun_off_lic_0_diag
614	!
615	! xtrun_off_lic_0(:,:)=xtrun_off_lic_0_diag(:,:)
616	!
617	! end subroutine fonte_neige_export_xtrun_off_lic_0
618	!#endif
619
620	#ifdef ISO
621	subroutine gestion_neige_besoin_varglob_fonte_neige(klon,knon, &
622	& xtprecip_snow,xtprecip_rain, &
623	& fxtfonte_neige,fxtcalving, &
624	& knindex,nisurf,run_off_lic_diag,coeff_rel_diag)
625
626	! dans cette routine, on a besoin des variables globales de
627	! fonte_neige_mod. Il faut donc la mettre dans fonte_neige_mod
628	! le reste de gestion_neige est dans isotopes_routines_mod car sinon pb
629	! de dépendance circulaire.
630
631	USE infotrac_phy, ONLY: ntraciso,niso
632	USE isotopes_mod, ONLY: iso_eau
633	USE indice_sol_mod
634	#ifdef ISOVERIF
635	USE isotopes_verif_mod
636	#endif
637	implicit none
638
639	! inputs
640	integer klon,knon
641	real xtprecip_snow(ntraciso,klon),xtprecip_rain(ntraciso,klon)
642	INTEGER, INTENT(IN) :: nisurf
643	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
644	real, DIMENSION(klon), INTENT(IN) :: run_off_lic_diag
645	real, INTENT(IN) :: coeff_rel_diag
646	real, DIMENSION(niso,klon), INTENT(IN) :: fxtfonte_neige,fxtcalving
647
648	! locals
649	integer i,ixt,j
650
651	#ifdef ISOVERIF
652	IF (nisurf == is_lic) THEN
653	if (iso_eau.gt.0) then
654	DO i = 1, knon
655	j = knindex(i)
656	call iso_verif_egalite(xtrun_off_lic_0(iso_eau,j), &
657	& run_off_lic_0(j),'gestion_neige_besoin_varglob_fonte_neige 625')
658	enddo
659	endif
660	endif
661	#endif
662
663	! calcul de run_off_lic
664
665	IF (nisurf == is_lic) THEN
666	! coeff_rel = dtime/(tau_calv * rday)
667
668	DO i = 1, knon
669	j = knindex(i)
670	do ixt=1,niso
671	xtrun_off_lic(ixt,i) = (coeff_rel_diag * fxtcalving(ixt,i)) + &
672	(1. - coeff_rel_diag) * xtrun_off_lic_0(ixt,j)
673	xtrun_off_lic_0(ixt,j) = xtrun_off_lic(ixt,i)
674	xtrun_off_lic(ixt,i) = xtrun_off_lic(ixt,i) + fxtfonte_neige(ixt,i) + xtprecip_rain(ixt,i)
675	enddo !do ixt=1,niso
676	#ifdef ISOVERIF
677	if (iso_eau.gt.0) then
678	if (iso_verif_egalite_choix_nostop(xtrun_off_lic(iso_eau,i), &
679	& run_off_lic_diag(i),'gestion_neige_besoin_varglob_fonte_neige 1201a', &
680	& errmax,errmaxrel).eq.1) then
681	write(,) 'i,j=',i,j
682	write(,) 'coeff_rel_diag=',coeff_rel_diag
683	stop
684	endif
685	endif
686	#endif
687	END DO
688	endif !IF (nisurf == is_lic) THEN
689
690	! Save ffonte, fqfonte and fqcalving in global arrays for each
691	! sub-surface separately
692	DO i = 1, knon
693	do ixt=1,niso
694	fxtfonte_global(ixt,knindex(i),nisurf) = fxtfonte_neige(ixt,i)
695	fxtcalving_global(ixt,knindex(i),nisurf) = fxtcalving(ixt,i)
696	enddo !do ixt=1,niso
697	ENDDO
698
699	IF (nisurf == is_lic) THEN
700	DO i = 1, knon
701	do ixt=1,niso
702	xtrunofflic_global(ixt,knindex(i)) = xtrun_off_lic(ixt,i)
703	enddo ! do ixt=1,niso
704	ENDDO
705	ENDIF
706
707	end subroutine gestion_neige_besoin_varglob_fonte_neige
708	#endif
709
710
711	END MODULE fonte_neige_mod

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