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surf_land_orchidee_nounstruct_mod.F90 @ 4763

Last change on this file since 4763 was 4600, checked in by yann meurdesoif, 17 months ago

Suppress CPP_MPI key usage in source code. MPI wrappers is used to supress missing symbol if the mpi library is not linked

Property svn:executable set to *

File size: 23.0 KB

Line
1	!
2	MODULE surf_land_orchidee_nounstruct_mod
3	#ifndef ORCHIDEE_NOZ0H
4	#ifdef ORCHIDEE_NOUNSTRUCT
5	!
6	! This module controles the interface towards the model ORCHIDEE.
7	!
8	! Compatibility with ORCHIDIEE :
9	! The current version can be used with ORCHIDEE/trunk from revision xxxx.
10	! This module is compiled only if cpp key ORCHIDEE_NOUNSTRUCT is defined.
11	!
12	! Subroutines in this module : surf_land_orchidee
13	! Init_orchidee_index
14	! Get_orchidee_communicator
15	! Init_neighbours
16
17	USE dimphy
18	#ifdef CPP_VEGET
19	USE intersurf ! module d'ORCHIDEE
20	#endif
21	USE cpl_mod, ONLY : cpl_send_land_fields
22	USE surface_data, ONLY : type_ocean
23	USE geometry_mod, ONLY : dx, dy
24	USE mod_grid_phy_lmdz
25	USE mod_phys_lmdz_para, mpi_root_rank=>mpi_master
26
27	IMPLICIT NONE
28
29	PRIVATE
30	PUBLIC :: surf_land_orchidee
31
32	CONTAINS
33	!
34	!****************************************************************************************
35	!
36	SUBROUTINE surf_land_orchidee(itime, dtime, date0, knon, &
37	knindex, rlon, rlat, yrmu0, pctsrf, &
38	debut, lafin, &
39	plev, u1_lay, v1_lay, gustiness, temp_air, spechum, epot_air, ccanopy, &
40	tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, &
41	precip_rain, precip_snow, lwdown, swnet, swdown, &
42	ps, q2m, t2m, &
43	evap, fluxsens, fluxlat, &
44	tsol_rad, tsurf_new, alb1_new, alb2_new, &
45	emis_new, z0m_new, z0h_new, qsurf, &
46	veget, lai, height )
47
48
49	USE mod_surf_para
50	USE mod_synchro_omp
51	USE carbon_cycle_mod, ONLY : carbon_cycle_cpl
52	USE indice_sol_mod
53	USE print_control_mod, ONLY: lunout
54	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat
55	#ifdef CPP_VEGET
56	USE time_phylmdz_mod, ONLY: itau_phy
57	#endif
58	!
59	! Cette routine sert d'interface entre le modele atmospherique et le
60	! modele de sol continental. Appel a sechiba
61	!
62	! L. Fairhead 02/2000
63	!
64	! input:
65	! itime numero du pas de temps
66	! dtime pas de temps de la physique (en s)
67	! nisurf index de la surface a traiter (1 = sol continental)
68	! knon nombre de points de la surface a traiter
69	! knindex index des points de la surface a traiter
70	! rlon longitudes de la grille entiere
71	! rlat latitudes de la grille entiere
72	! pctsrf tableau des fractions de surface de chaque maille
73	! debut logical: 1er appel a la physique (lire les restart)
74	! lafin logical: dernier appel a la physique (ecrire les restart)
75	! (si false calcul simplifie des fluxs sur les continents)
76	! plev hauteur de la premiere couche (Pa)
77	! u1_lay vitesse u 1ere couche
78	! v1_lay vitesse v 1ere couche
79	! temp_air temperature de l'air 1ere couche
80	! spechum humidite specifique 1ere couche
81	! epot_air temp pot de l'air
82	! ccanopy concentration CO2 canopee, correspond au co2_send de
83	! carbon_cycle_mod ou valeur constant co2_ppm
84	! tq_cdrag cdrag
85	! petAcoef coeff. A de la resolution de la CL pour t
86	! peqAcoef coeff. A de la resolution de la CL pour q
87	! petBcoef coeff. B de la resolution de la CL pour t
88	! peqBcoef coeff. B de la resolution de la CL pour q
89	! precip_rain precipitation liquide
90	! precip_snow precipitation solide
91	! lwdown flux IR descendant a la surface
92	! swnet flux solaire net
93	! swdown flux solaire entrant a la surface
94	! ps pression au sol
95	! radsol rayonnement net aus sol (LW + SW)
96	!
97	!
98	! output:
99	! evap evaporation totale
100	! fluxsens flux de chaleur sensible
101	! fluxlat flux de chaleur latente
102	! tsol_rad
103	! tsurf_new temperature au sol
104	! alb1_new albedo in visible SW interval
105	! alb2_new albedo in near IR interval
106	! emis_new emissivite
107	! z0m_new surface roughness for momentum
108	! z0h_new surface roughness for heat
109	! qsurf air moisture at surface
110	!
111	INCLUDE "YOMCST.h"
112	INCLUDE "dimpft.h"
113
114
115
116	!
117	! Parametres d'entree
118	!****************************************************************************************
119	INTEGER, INTENT(IN) :: itime
120	REAL, INTENT(IN) :: dtime
121	REAL, INTENT(IN) :: date0
122	INTEGER, INTENT(IN) :: knon
123	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
124	LOGICAL, INTENT(IN) :: debut, lafin
125	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
126	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
127	REAL, DIMENSION(klon), INTENT(IN) :: yrmu0 ! cosine of solar zenith angle
128	REAL, DIMENSION(klon), INTENT(IN) :: plev
129	REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay, gustiness
130	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
131	REAL, DIMENSION(klon), INTENT(IN) :: epot_air, ccanopy
132	REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag
133	REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef
134	REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef
135	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
136	REAL, DIMENSION(klon), INTENT(IN) :: lwdown, swnet, swdown, ps
137	REAL, DIMENSION(klon), INTENT(IN) :: q2m, t2m
138
139	! Parametres de sortie
140	!****************************************************************************************
141	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat, qsurf
142	REAL, DIMENSION(klon), INTENT(OUT) :: tsol_rad, tsurf_new
143	REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new
144	REAL, DIMENSION(klon), INTENT(OUT) :: emis_new, z0m_new, z0h_new
145	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: veget
146	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: lai
147	REAL, DIMENSION(klon,nvm_lmdz), INTENT(OUT) :: height
148
149
150	! Local
151	!****************************************************************************************
152	INTEGER :: ij, jj, igrid, ireal, index
153	INTEGER :: error
154	REAL, DIMENSION(klon) :: swdown_vrai
155	CHARACTER (len = 20) :: modname = 'surf_land_orchidee'
156	CHARACTER (len = 80) :: abort_message
157	LOGICAL,SAVE :: check = .FALSE.
158	!$OMP THREADPRIVATE(check)
159
160	! type de couplage dans sechiba
161	! character (len=10) :: coupling = 'implicit'
162	! drapeaux controlant les appels dans SECHIBA
163	! type(control_type), save :: control_in
164	! Preserved albedo
165	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: albedo_keep, zlev
166	!$OMP THREADPRIVATE(albedo_keep,zlev)
167	! coordonnees geographiques
168	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: lalo
169	!$OMP THREADPRIVATE(lalo)
170	! pts voisins
171	INTEGER,ALLOCATABLE, DIMENSION(:,:), SAVE :: neighbours
172	!$OMP THREADPRIVATE(neighbours)
173	! fractions continents
174	REAL,ALLOCATABLE, DIMENSION(:), SAVE :: contfrac
175	!$OMP THREADPRIVATE(contfrac)
176	! resolution de la grille
177	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: resolution
178	!$OMP THREADPRIVATE(resolution)
179
180	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: lon_scat, lat_scat
181	!$OMP THREADPRIVATE(lon_scat,lat_scat)
182
183	LOGICAL, SAVE :: lrestart_read = .TRUE.
184	!$OMP THREADPRIVATE(lrestart_read)
185	LOGICAL, SAVE :: lrestart_write = .FALSE.
186	!$OMP THREADPRIVATE(lrestart_write)
187
188	REAL, DIMENSION(knon,2) :: albedo_out
189
190	! Pb de nomenclature
191	REAL, DIMENSION(klon) :: petA_orc, peqA_orc
192	REAL, DIMENSION(klon) :: petB_orc, peqB_orc
193	! Pb de correspondances de grilles
194	INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: ig, jg
195	!$OMP THREADPRIVATE(ig,jg)
196	INTEGER :: indi, indj
197	INTEGER, SAVE, ALLOCATABLE,DIMENSION(:) :: ktindex
198	!$OMP THREADPRIVATE(ktindex)
199
200	! Essai cdrag
201	REAL, DIMENSION(klon) :: cdrag
202	INTEGER,SAVE :: offset
203	!$OMP THREADPRIVATE(offset)
204
205	REAL, DIMENSION(klon_glo) :: rlon_g,rlat_g
206	INTEGER, SAVE :: orch_comm
207	!$OMP THREADPRIVATE(orch_comm)
208
209	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: coastalflow
210	!$OMP THREADPRIVATE(coastalflow)
211	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: riverflow
212	!$OMP THREADPRIVATE(riverflow)
213
214	INTEGER :: orch_omp_rank
215	INTEGER :: orch_omp_size
216	!
217	! Fin definition
218	!****************************************************************************************
219
220	IF (check) WRITE(lunout,*)'Entree ', modname
221
222	! Initialisation
223
224	IF (debut) THEN
225	! Test of coherence between variable ok_veget and cpp key CPP_VEGET
226	#ifndef CPP_VEGET
227	abort_message='Pb de coherence: ok_veget = .true. mais CPP_VEGET = .false.'
228	CALL abort_physic(modname,abort_message,1)
229	#endif
230
231	CALL Init_surf_para(knon)
232	ALLOCATE(ktindex(knon))
233	IF ( .NOT. ALLOCATED(albedo_keep)) THEN
234	!ym ALLOCATE(albedo_keep(klon))
235	!ym bizarre que non alloué en knon precedement
236	ALLOCATE(albedo_keep(knon))
237	ALLOCATE(zlev(knon))
238	ENDIF
239	! Pb de correspondances de grilles
240	ALLOCATE(ig(klon))
241	ALLOCATE(jg(klon))
242	ig(1) = 1
243	jg(1) = 1
244	indi = 0
245	indj = 2
246	DO igrid = 2, klon - 1
247	indi = indi + 1
248	IF ( indi > nbp_lon) THEN
249	indi = 1
250	indj = indj + 1
251	ENDIF
252	ig(igrid) = indi
253	jg(igrid) = indj
254	ENDDO
255	ig(klon) = 1
256	jg(klon) = nbp_lat
257
258	IF ((.NOT. ALLOCATED(lalo))) THEN
259	ALLOCATE(lalo(knon,2), stat = error)
260	IF (error /= 0) THEN
261	abort_message='Pb allocation lalo'
262	CALL abort_physic(modname,abort_message,1)
263	ENDIF
264	ENDIF
265	IF ((.NOT. ALLOCATED(lon_scat))) THEN
266	ALLOCATE(lon_scat(nbp_lon,nbp_lat), stat = error)
267	IF (error /= 0) THEN
268	abort_message='Pb allocation lon_scat'
269	CALL abort_physic(modname,abort_message,1)
270	ENDIF
271	ENDIF
272	IF ((.NOT. ALLOCATED(lat_scat))) THEN
273	ALLOCATE(lat_scat(nbp_lon,nbp_lat), stat = error)
274	IF (error /= 0) THEN
275	abort_message='Pb allocation lat_scat'
276	CALL abort_physic(modname,abort_message,1)
277	ENDIF
278	ENDIF
279	lon_scat = 0.
280	lat_scat = 0.
281	DO igrid = 1, knon
282	index = knindex(igrid)
283	lalo(igrid,2) = rlon(index)
284	lalo(igrid,1) = rlat(index)
285	ENDDO
286
287
288
289	CALL Gather(rlon,rlon_g)
290	CALL Gather(rlat,rlat_g)
291
292	IF (is_mpi_root) THEN
293	index = 1
294	DO jj = 2, nbp_lat-1
295	DO ij = 1, nbp_lon
296	index = index + 1
297	lon_scat(ij,jj) = rlon_g(index)
298	lat_scat(ij,jj) = rlat_g(index)
299	ENDDO
300	ENDDO
301	lon_scat(:,1) = lon_scat(:,2)
302	lat_scat(:,1) = rlat_g(1)
303	lon_scat(:,nbp_lat) = lon_scat(:,2)
304	lat_scat(:,nbp_lat) = rlat_g(klon_glo)
305	ENDIF
306
307	CALL bcast(lon_scat)
308	CALL bcast(lat_scat)
309	!
310	! Allouer et initialiser le tableau des voisins et des fraction de continents
311	!
312	IF ( (.NOT.ALLOCATED(neighbours))) THEN
313	ALLOCATE(neighbours(knon,8), stat = error)
314	IF (error /= 0) THEN
315	abort_message='Pb allocation neighbours'
316	CALL abort_physic(modname,abort_message,1)
317	ENDIF
318	ENDIF
319	neighbours = -1.
320	IF (( .NOT. ALLOCATED(contfrac))) THEN
321	ALLOCATE(contfrac(knon), stat = error)
322	IF (error /= 0) THEN
323	abort_message='Pb allocation contfrac'
324	CALL abort_physic(modname,abort_message,1)
325	ENDIF
326	ENDIF
327
328	DO igrid = 1, knon
329	ireal = knindex(igrid)
330	contfrac(igrid) = pctsrf(ireal,is_ter)
331	ENDDO
332
333
334	CALL Init_neighbours(knon,neighbours,knindex,pctsrf(:,is_ter))
335
336	!
337	! Allocation et calcul resolutions
338	IF ( (.NOT.ALLOCATED(resolution))) THEN
339	ALLOCATE(resolution(knon,2), stat = error)
340	IF (error /= 0) THEN
341	abort_message='Pb allocation resolution'
342	CALL abort_physic(modname,abort_message,1)
343	ENDIF
344	ENDIF
345	DO igrid = 1, knon
346	ij = knindex(igrid)
347	resolution(igrid,1) = dx(ij)
348	resolution(igrid,2) = dy(ij)
349	ENDDO
350
351	ALLOCATE(coastalflow(klon), stat = error)
352	IF (error /= 0) THEN
353	abort_message='Pb allocation coastalflow'
354	CALL abort_physic(modname,abort_message,1)
355	ENDIF
356
357	ALLOCATE(riverflow(klon), stat = error)
358	IF (error /= 0) THEN
359	abort_message='Pb allocation riverflow'
360	CALL abort_physic(modname,abort_message,1)
361	ENDIF
362	!
363	! carbon_cycle_cpl not possible with this interface and version of ORHCHIDEE
364	!
365	IF (carbon_cycle_cpl) THEN
366	abort_message='carbon_cycle_cpl not yet possible with this interface of ORCHIDEE'
367	CALL abort_physic(modname,abort_message,1)
368	END IF
369
370	ENDIF ! (fin debut)
371
372
373	!
374	! Appel a la routine sols continentaux
375	!
376	IF (lafin) lrestart_write = .TRUE.
377	IF (check) WRITE(lunout,*)'lafin ',lafin,lrestart_write
378
379	petA_orc(1:knon) = petBcoef(1:knon) * dtime
380	petB_orc(1:knon) = petAcoef(1:knon)
381	peqA_orc(1:knon) = peqBcoef(1:knon) * dtime
382	peqB_orc(1:knon) = peqAcoef(1:knon)
383
384	cdrag = 0.
385	cdrag(1:knon) = tq_cdrag(1:knon)
386
387	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/287.05temp_air(1:knon))*9.80665)
388	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/RDtemp_air(1:knon))*RG)
389	zlev(1:knon) = plev(1:knon)RDtemp_air(1:knon)/((ps(1:knon)100.0)RG)
390
391
392	! PF et PASB
393	! where(cdrag > 0.01)
394	! cdrag = 0.01
395	! endwhere
396	! write(,)'Cdrag = ',minval(cdrag),maxval(cdrag)
397
398
399	IF (debut) THEN
400	CALL Init_orchidee_index(knon,knindex,offset,ktindex)
401	CALL Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
402	CALL Init_synchro_omp
403
404	IF (knon > 0) THEN
405	#ifdef CPP_VEGET
406	CALL Init_intersurf(nbp_lon,nbp_lat,knon,ktindex,offset,orch_omp_size,orch_omp_rank,orch_comm)
407	#endif
408	ENDIF
409
410
411	IF (knon > 0) THEN
412
413	#ifdef CPP_VEGET
414	CALL intersurf_initialize_gathered (itime+itau_phy-1, nbp_lon, nbp_lat, knon, ktindex, dtime, &
415	lrestart_read, lrestart_write, lalo, contfrac, neighbours, resolution, date0, &
416	zlev, u1_lay, v1_lay, spechum, temp_air, epot_air, &
417	cdrag, petA_orc, peqA_orc, petB_orc, peqB_orc, &
418	precip_rain, precip_snow, lwdown, swnet, swdown, ps, &
419	evap, fluxsens, fluxlat, coastalflow, riverflow, &
420	tsol_rad, tsurf_new, qsurf, albedo_out, emis_new, z0m_new, &
421	lon_scat, lat_scat, q2m, t2m, z0h_new, nvm_orch)
422	#endif
423	ENDIF
424
425	CALL Synchro_omp
426
427	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
428
429	ENDIF
430
431
432	! swdown_vrai(1:knon) = swnet(1:knon)/(1. - albedo_keep(1:knon))
433	swdown_vrai(1:knon) = swdown(1:knon)
434
435	IF (knon > 0) THEN
436	#ifdef CPP_VEGET
437	IF (nvm_orch .NE. nvm_lmdz ) THEN
438	abort_message='Pb de dimensiosn PFT: nvm_orch et nvm_lmdz differents.'
439	CALL abort_physic(modname,abort_message,1)
440	ENDIF
441
442	CALL intersurf_main_gathered (itime+itau_phy, nbp_lon, nbp_lat, knon, ktindex, dtime, &
443	lrestart_read, lrestart_write, lalo, &
444	contfrac, neighbours, resolution, date0, &
445	zlev, u1_lay(1:knon), v1_lay(1:knon), spechum(1:knon), temp_air(1:knon), epot_air(1:knon), ccanopy(1:knon), &
446	cdrag(1:knon), petA_orc(1:knon), peqA_orc(1:knon), petB_orc(1:knon), peqB_orc(1:knon), &
447	precip_rain(1:knon), precip_snow(1:knon), lwdown(1:knon), swnet(1:knon), swdown_vrai(1:knon), ps(1:knon), &
448	evap(1:knon), fluxsens(1:knon), fluxlat(1:knon), coastalflow(1:knon), riverflow(1:knon), &
449	tsol_rad(1:knon), tsurf_new(1:knon), qsurf(1:knon), albedo_out(1:knon,:), emis_new(1:knon), z0m_new(1:knon), &
450	lon_scat, lat_scat, q2m, t2m, z0h_new(1:knon),&
451	veget(1:knon,:),lai(1:knon,:),height(1:knon,:),&
452	coszang=yrmu0(1:knon))
453	#endif
454	ENDIF
455
456	CALL Synchro_omp
457
458	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
459
460	!* Send to coupler
461	!
462	IF (type_ocean=='couple') THEN
463	CALL cpl_send_land_fields(itime, knon, knindex, &
464	riverflow, coastalflow)
465	ENDIF
466
467	alb1_new(1:knon) = albedo_out(1:knon,1)
468	alb2_new(1:knon) = albedo_out(1:knon,2)
469
470	! Convention orchidee: positif vers le haut
471	fluxsens(1:knon) = -1. * fluxsens(1:knon)
472	fluxlat(1:knon) = -1. * fluxlat(1:knon)
473
474	! evap = -1. * evap
475
476	IF (debut) lrestart_read = .FALSE.
477
478	IF (debut) CALL Finalize_surf_para
479
480
481	END SUBROUTINE surf_land_orchidee
482	!
483	!****************************************************************************************
484	!
485	SUBROUTINE Init_orchidee_index(knon,knindex,offset,ktindex)
486	USE mod_surf_para
487	USE mod_grid_phy_lmdz
488
489	INTEGER,INTENT(IN) :: knon
490	INTEGER,INTENT(IN) :: knindex(klon)
491	INTEGER,INTENT(OUT) :: offset
492	INTEGER,INTENT(OUT) :: ktindex(klon)
493
494	INTEGER :: ktindex_glo(knon_glo)
495	INTEGER :: offset_para(0:omp_size*mpi_size-1)
496	INTEGER :: LastPoint
497	INTEGER :: task
498
499	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
500
501	CALL gather_surf(ktindex(1:knon),ktindex_glo)
502
503	IF (is_mpi_root .AND. is_omp_root) THEN
504	LastPoint=0
505	DO Task=0,mpi_size*omp_size-1
506	IF (knon_glo_para(Task)>0) THEN
507	offset_para(task)= LastPoint-MOD(LastPoint,nbp_lon)
508	LastPoint=ktindex_glo(knon_glo_end_para(task))
509	ENDIF
510	ENDDO
511	ENDIF
512
513	CALL bcast(offset_para)
514
515	offset=offset_para(omp_size*mpi_rank+omp_rank)
516
517	ktindex(1:knon)=ktindex(1:knon)-offset
518
519	END SUBROUTINE Init_orchidee_index
520
521	!
522	!*********************** *************************************************************
523	!
524
525	SUBROUTINE Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
526	USE mod_surf_para
527	USE lmdz_mpi
528
529	INTEGER,INTENT(OUT) :: orch_comm
530	INTEGER,INTENT(OUT) :: orch_omp_size
531	INTEGER,INTENT(OUT) :: orch_omp_rank
532	INTEGER :: color
533	INTEGER :: i,ierr
534	!
535	! End definition
536	!****************************************************************************************
537
538
539	IF (is_omp_root) THEN
540
541	IF (knon_mpi==0) THEN
542	color = 0
543	ELSE
544	color = 1
545	ENDIF
546
547	CALL MPI_COMM_SPLIT(COMM_LMDZ_PHY,color,mpi_rank,orch_comm,ierr)
548
549	ENDIF
550	CALL bcast_omp(orch_comm)
551
552	IF (knon_mpi /= 0) THEN
553	orch_omp_size=0
554	DO i=0,omp_size-1
555	IF (knon_omp_para(i) /=0) THEN
556	orch_omp_size=orch_omp_size+1
557	IF (i==omp_rank) orch_omp_rank=orch_omp_size-1
558	ENDIF
559	ENDDO
560	ENDIF
561
562
563	END SUBROUTINE Get_orchidee_communicator
564	!
565	!****************************************************************************************
566	!
567
568	SUBROUTINE Init_neighbours(knon,neighbours,knindex,pctsrf)
569	USE mod_grid_phy_lmdz
570	USE mod_surf_para
571	USE indice_sol_mod
572	USE lmdz_mpi
573
574	! Input arguments
575	!****************************************************************************************
576	INTEGER, INTENT(IN) :: knon
577	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
578	REAL, DIMENSION(klon), INTENT(IN) :: pctsrf
579
580	! Output arguments
581	!****************************************************************************************
582	INTEGER, DIMENSION(knon,8), INTENT(OUT) :: neighbours
583
584	! Local variables
585	!****************************************************************************************
586	INTEGER :: i, igrid, jj, ij, iglob
587	INTEGER :: ierr, ireal, index
588	INTEGER, DIMENSION(8,3) :: off_ini
589	INTEGER, DIMENSION(8) :: offset
590	INTEGER, DIMENSION(nbp_lon,nbp_lat) :: correspond
591	INTEGER, DIMENSION(knon_glo) :: ktindex_glo
592	INTEGER, DIMENSION(knon_glo,8) :: neighbours_glo
593	REAL, DIMENSION(klon_glo) :: pctsrf_glo
594	INTEGER :: ktindex(klon)
595	!
596	! End definition
597	!****************************************************************************************
598
599	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
600
601	CALL gather_surf(ktindex(1:knon),ktindex_glo)
602	CALL gather(pctsrf,pctsrf_glo)
603
604	IF (is_mpi_root .AND. is_omp_root) THEN
605	neighbours_glo(:,:)=-1
606	! Initialisation des offset
607	!
608	! offset bord ouest
609	off_ini(1,1) = - nbp_lon ; off_ini(2,1) = - nbp_lon + 1 ; off_ini(3,1) = 1
610	off_ini(4,1) = nbp_lon + 1 ; off_ini(5,1) = nbp_lon ; off_ini(6,1) = 2 * nbp_lon - 1
611	off_ini(7,1) = nbp_lon -1 ; off_ini(8,1) = - 1
612	! offset point normal
613	off_ini(1,2) = - nbp_lon ; off_ini(2,2) = - nbp_lon + 1 ; off_ini(3,2) = 1
614	off_ini(4,2) = nbp_lon + 1 ; off_ini(5,2) = nbp_lon ; off_ini(6,2) = nbp_lon - 1
615	off_ini(7,2) = -1 ; off_ini(8,2) = - nbp_lon - 1
616	! offset bord est
617	off_ini(1,3) = - nbp_lon ; off_ini(2,3) = - 2 * nbp_lon + 1 ; off_ini(3,3) = - nbp_lon + 1
618	off_ini(4,3) = 1 ; off_ini(5,3) = nbp_lon ; off_ini(6,3) = nbp_lon - 1
619	off_ini(7,3) = -1 ; off_ini(8,3) = - nbp_lon - 1
620	!
621	!
622	! Attention aux poles
623	!
624	DO igrid = 1, knon_glo
625	index = ktindex_glo(igrid)
626	jj = INT((index - 1)/nbp_lon) + 1
627	ij = index - (jj - 1) * nbp_lon
628	correspond(ij,jj) = igrid
629	ENDDO
630	!sonia : Les mailles des voisines doivent etre toutes egales (pour couplage orchidee)
631	IF (knon_glo == 1) THEN
632	igrid = 1
633	DO i = 1,8
634	neighbours_glo(igrid, i) = igrid
635	ENDDO
636	ELSE
637	print*,'sonia : knon_glo,ij,jj', knon_glo, ij,jj
638
639	DO igrid = 1, knon_glo
640	iglob = ktindex_glo(igrid)
641
642	IF (MOD(iglob, nbp_lon) == 1) THEN
643	offset = off_ini(:,1)
644	ELSE IF(MOD(iglob, nbp_lon) == 0) THEN
645	offset = off_ini(:,3)
646	ELSE
647	offset = off_ini(:,2)
648	ENDIF
649
650	DO i = 1, 8
651	index = iglob + offset(i)
652	ireal = (MIN(MAX(1, index - nbp_lon + 1), klon_glo))
653	IF (pctsrf_glo(ireal) > EPSFRA) THEN
654	jj = INT((index - 1)/nbp_lon) + 1
655	ij = index - (jj - 1) * nbp_lon
656	neighbours_glo(igrid, i) = correspond(ij, jj)
657	ENDIF
658	ENDDO
659	ENDDO
660	ENDIF !fin knon_glo == 1
661
662	ENDIF
663
664	DO i = 1, 8
665	CALL scatter_surf(neighbours_glo(:,i),neighbours(1:knon,i))
666	ENDDO
667	END SUBROUTINE Init_neighbours
668
669	!
670	!****************************************************************************************
671	!
672	#endif
673	#endif
674	END MODULE surf_land_orchidee_nounstruct_mod

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