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surf_land_orchidee_mod.F90 @ 5434

Last change on this file since 5434 was 1279, checked in by Laurent Fairhead, 15 years ago
Merged LMDZ4-dev branch changes r1241:1278 into the trunk Running trunk and LMDZ4-dev in LMDZOR configuration on local machine (sequential) and SX8 (4-proc) yields identical results (restart and restartphy are identical binarily) Log history from r1241 to r1278 is available by switching to source:LMDZ4/branches/LMDZ4-dev-20091210
Property svn:eol-style set to `native` Property svn:executable set to ``* Property svn:keywords set to `Author Date Id Revision`
File size: 22.7 KB

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1	!
2	MODULE surf_land_orchidee_mod
3	#ifndef ORCHIDEE_NOOPENMP
4	!
5	! This module controles the interface towards the model ORCHIDEE
6	!
7	! Subroutines in this module : surf_land_orchidee
8	! Init_orchidee_index
9	! Get_orchidee_communicator
10	! Init_neighbours
11
12	USE dimphy
13	#ifdef CPP_VEGET
14	USE intersurf ! module d'ORCHIDEE
15	#endif
16	USE cpl_mod, ONLY : cpl_send_land_fields
17	USE surface_data, ONLY : type_ocean
18	USE comgeomphy, ONLY : cuphy, cvphy
19	USE mod_grid_phy_lmdz
20	USE mod_phys_lmdz_para, mpi_root_rank=>mpi_root
21
22	IMPLICIT NONE
23
24	PRIVATE
25	PUBLIC :: surf_land_orchidee
26
27	LOGICAL, ALLOCATABLE, SAVE :: flag_omp(:)
28	CONTAINS
29	!
30	!****************************************************************************************
31	!
32	SUBROUTINE surf_land_orchidee(itime, dtime, date0, knon, &
33	knindex, rlon, rlat, pctsrf, &
34	debut, lafin, &
35	plev, u1_lay, v1_lay, temp_air, spechum, epot_air, ccanopy, &
36	tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, &
37	precip_rain, precip_snow, lwdown, swnet, swdown, &
38	ps, q2m, t2m, &
39	evap, fluxsens, fluxlat, &
40	tsol_rad, tsurf_new, alb1_new, alb2_new, &
41	emis_new, z0_new, qsurf)
42
43	USE mod_surf_para
44	USE mod_synchro_omp
45
46	USE carbon_cycle_mod, ONLY : carbon_cycle_cpl, fco2_land_inst, fco2_lu_inst
47
48	!
49	! Cette routine sert d'interface entre le modele atmospherique et le
50	! modele de sol continental. Appel a sechiba
51	!
52	! L. Fairhead 02/2000
53	!
54	! input:
55	! itime numero du pas de temps
56	! dtime pas de temps de la physique (en s)
57	! nisurf index de la surface a traiter (1 = sol continental)
58	! knon nombre de points de la surface a traiter
59	! knindex index des points de la surface a traiter
60	! rlon longitudes de la grille entiere
61	! rlat latitudes de la grille entiere
62	! pctsrf tableau des fractions de surface de chaque maille
63	! debut logical: 1er appel a la physique (lire les restart)
64	! lafin logical: dernier appel a la physique (ecrire les restart)
65	! (si false calcul simplifie des fluxs sur les continents)
66	! plev hauteur de la premiere couche (Pa)
67	! u1_lay vitesse u 1ere couche
68	! v1_lay vitesse v 1ere couche
69	! temp_air temperature de l'air 1ere couche
70	! spechum humidite specifique 1ere couche
71	! epot_air temp pot de l'air
72	! ccanopy concentration CO2 canopee, correspond au co2_send de
73	! carbon_cycle_mod ou valeur constant co2_ppm
74	! tq_cdrag cdrag
75	! petAcoef coeff. A de la resolution de la CL pour t
76	! peqAcoef coeff. A de la resolution de la CL pour q
77	! petBcoef coeff. B de la resolution de la CL pour t
78	! peqBcoef coeff. B de la resolution de la CL pour q
79	! precip_rain precipitation liquide
80	! precip_snow precipitation solide
81	! lwdown flux IR descendant a la surface
82	! swnet flux solaire net
83	! swdown flux solaire entrant a la surface
84	! ps pression au sol
85	! radsol rayonnement net aus sol (LW + SW)
86	!
87	!
88	! output:
89	! evap evaporation totale
90	! fluxsens flux de chaleur sensible
91	! fluxlat flux de chaleur latente
92	! tsol_rad
93	! tsurf_new temperature au sol
94	! alb1_new albedo in visible SW interval
95	! alb2_new albedo in near IR interval
96	! emis_new emissivite
97	! z0_new surface roughness
98	! qsurf air moisture at surface
99	!
100	INCLUDE "indicesol.h"
101	INCLUDE "temps.h"
102	INCLUDE "YOMCST.h"
103	INCLUDE "iniprint.h"
104	INCLUDE "dimensions.h"
105
106	!
107	! Parametres d'entree
108	!****************************************************************************************
109	INTEGER, INTENT(IN) :: itime
110	REAL, INTENT(IN) :: dtime
111	REAL, INTENT(IN) :: date0
112	INTEGER, INTENT(IN) :: knon
113	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
114	LOGICAL, INTENT(IN) :: debut, lafin
115	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
116	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
117	REAL, DIMENSION(klon), INTENT(IN) :: plev
118	REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay
119	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
120	REAL, DIMENSION(klon), INTENT(IN) :: epot_air, ccanopy
121	REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag
122	REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef
123	REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef
124	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
125	REAL, DIMENSION(klon), INTENT(IN) :: lwdown, swnet, swdown, ps
126	REAL, DIMENSION(klon), INTENT(IN) :: q2m, t2m
127
128	! Parametres de sortie
129	!****************************************************************************************
130	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat, qsurf
131	REAL, DIMENSION(klon), INTENT(OUT) :: tsol_rad, tsurf_new
132	REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new
133	REAL, DIMENSION(klon), INTENT(OUT) :: emis_new, z0_new
134
135	! Local
136	!****************************************************************************************
137	INTEGER :: ij, jj, igrid, ireal, index
138	INTEGER :: error
139	REAL, DIMENSION(klon) :: swdown_vrai
140	REAL, DIMENSION(klon) :: fco2_land_comp ! sur grille compresse
141	REAL, DIMENSION(klon) :: fco2_lu_comp ! sur grille compresse
142	CHARACTER (len = 20) :: modname = 'surf_land_orchidee'
143	CHARACTER (len = 80) :: abort_message
144	LOGICAL,SAVE :: check = .FALSE.
145	!$OMP THREADPRIVATE(check)
146
147	! type de couplage dans sechiba
148	! character (len=10) :: coupling = 'implicit'
149	! drapeaux controlant les appels dans SECHIBA
150	! type(control_type), save :: control_in
151	! Preserved albedo
152	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: albedo_keep, zlev
153	!$OMP THREADPRIVATE(albedo_keep,zlev)
154	! coordonnees geographiques
155	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: lalo
156	!$OMP THREADPRIVATE(lalo)
157	! pts voisins
158	INTEGER,ALLOCATABLE, DIMENSION(:,:), SAVE :: neighbours
159	!$OMP THREADPRIVATE(neighbours)
160	! fractions continents
161	REAL,ALLOCATABLE, DIMENSION(:), SAVE :: contfrac
162	!$OMP THREADPRIVATE(contfrac)
163	! resolution de la grille
164	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: resolution
165	!$OMP THREADPRIVATE(resolution)
166
167	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: lon_scat, lat_scat
168	!$OMP THREADPRIVATE(lon_scat,lat_scat)
169
170	LOGICAL, SAVE :: lrestart_read = .TRUE.
171	!$OMP THREADPRIVATE(lrestart_read)
172	LOGICAL, SAVE :: lrestart_write = .FALSE.
173	!$OMP THREADPRIVATE(lrestart_write)
174
175	REAL, DIMENSION(knon,2) :: albedo_out
176
177	! Pb de nomenclature
178	REAL, DIMENSION(klon) :: petA_orc, peqA_orc
179	REAL, DIMENSION(klon) :: petB_orc, peqB_orc
180	! Pb de correspondances de grilles
181	INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: ig, jg
182	!$OMP THREADPRIVATE(ig,jg)
183	INTEGER :: indi, indj
184	INTEGER, SAVE, ALLOCATABLE,DIMENSION(:) :: ktindex
185	!$OMP THREADPRIVATE(ktindex)
186
187	! Essai cdrag
188	REAL, DIMENSION(klon) :: cdrag
189	INTEGER,SAVE :: offset
190	!$OMP THREADPRIVATE(offset)
191
192	REAL, DIMENSION(klon_glo) :: rlon_g,rlat_g
193	INTEGER, SAVE :: orch_comm
194	!$OMP THREADPRIVATE(orch_comm)
195
196	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: coastalflow
197	!$OMP THREADPRIVATE(coastalflow)
198	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: riverflow
199	!$OMP THREADPRIVATE(riverflow)
200
201	INTEGER :: orch_omp_rank
202	INTEGER :: orch_omp_size
203	!
204	! Fin definition
205	!****************************************************************************************
206
207	IF (check) WRITE(lunout,*)'Entree ', modname
208
209	! Initialisation
210
211	IF (debut) THEN
212	! Test of coherence between variable ok_veget and cpp key CPP_VEGET
213	#ifndef CPP_VEGET
214	abort_message='Pb de coherence: ok_veget = .true. mais CPP_VEGET = .false.'
215	CALL abort_gcm(modname,abort_message,1)
216	#endif
217
218	CALL Init_surf_para(knon)
219	ALLOCATE(ktindex(knon))
220	IF ( .NOT. ALLOCATED(albedo_keep)) THEN
221	!ym ALLOCATE(albedo_keep(klon))
222	!ym bizarre que non alloué en knon precedement
223	ALLOCATE(albedo_keep(knon))
224	ALLOCATE(zlev(knon))
225	ENDIF
226	! Pb de correspondances de grilles
227	ALLOCATE(ig(klon))
228	ALLOCATE(jg(klon))
229	ig(1) = 1
230	jg(1) = 1
231	indi = 0
232	indj = 2
233	DO igrid = 2, klon - 1
234	indi = indi + 1
235	IF ( indi > iim) THEN
236	indi = 1
237	indj = indj + 1
238	ENDIF
239	ig(igrid) = indi
240	jg(igrid) = indj
241	ENDDO
242	ig(klon) = 1
243	jg(klon) = jjm + 1
244
245	IF ((.NOT. ALLOCATED(lalo))) THEN
246	ALLOCATE(lalo(knon,2), stat = error)
247	IF (error /= 0) THEN
248	abort_message='Pb allocation lalo'
249	CALL abort_gcm(modname,abort_message,1)
250	ENDIF
251	ENDIF
252	IF ((.NOT. ALLOCATED(lon_scat))) THEN
253	ALLOCATE(lon_scat(iim,jjm+1), stat = error)
254	IF (error /= 0) THEN
255	abort_message='Pb allocation lon_scat'
256	CALL abort_gcm(modname,abort_message,1)
257	ENDIF
258	ENDIF
259	IF ((.NOT. ALLOCATED(lat_scat))) THEN
260	ALLOCATE(lat_scat(iim,jjm+1), stat = error)
261	IF (error /= 0) THEN
262	abort_message='Pb allocation lat_scat'
263	CALL abort_gcm(modname,abort_message,1)
264	ENDIF
265	ENDIF
266	lon_scat = 0.
267	lat_scat = 0.
268	DO igrid = 1, knon
269	index = knindex(igrid)
270	lalo(igrid,2) = rlon(index)
271	lalo(igrid,1) = rlat(index)
272	ENDDO
273
274
275
276	CALL Gather(rlon,rlon_g)
277	CALL Gather(rlat,rlat_g)
278
279	IF (is_mpi_root) THEN
280	index = 1
281	DO jj = 2, jjm
282	DO ij = 1, iim
283	index = index + 1
284	lon_scat(ij,jj) = rlon_g(index)
285	lat_scat(ij,jj) = rlat_g(index)
286	ENDDO
287	ENDDO
288	lon_scat(:,1) = lon_scat(:,2)
289	lat_scat(:,1) = rlat_g(1)
290	lon_scat(:,jjm+1) = lon_scat(:,2)
291	lat_scat(:,jjm+1) = rlat_g(klon_glo)
292	ENDIF
293
294	CALL bcast(lon_scat)
295	CALL bcast(lat_scat)
296	!
297	! Allouer et initialiser le tableau des voisins et des fraction de continents
298	!
299	IF ( (.NOT.ALLOCATED(neighbours))) THEN
300	ALLOCATE(neighbours(knon,8), stat = error)
301	IF (error /= 0) THEN
302	abort_message='Pb allocation neighbours'
303	CALL abort_gcm(modname,abort_message,1)
304	ENDIF
305	ENDIF
306	neighbours = -1.
307	IF (( .NOT. ALLOCATED(contfrac))) THEN
308	ALLOCATE(contfrac(knon), stat = error)
309	IF (error /= 0) THEN
310	abort_message='Pb allocation contfrac'
311	CALL abort_gcm(modname,abort_message,1)
312	ENDIF
313	ENDIF
314
315	DO igrid = 1, knon
316	ireal = knindex(igrid)
317	contfrac(igrid) = pctsrf(ireal,is_ter)
318	ENDDO
319
320
321	CALL Init_neighbours(knon,neighbours,knindex,pctsrf(:,is_ter))
322
323	!
324	! Allocation et calcul resolutions
325	IF ( (.NOT.ALLOCATED(resolution))) THEN
326	ALLOCATE(resolution(knon,2), stat = error)
327	IF (error /= 0) THEN
328	abort_message='Pb allocation resolution'
329	CALL abort_gcm(modname,abort_message,1)
330	ENDIF
331	ENDIF
332	DO igrid = 1, knon
333	ij = knindex(igrid)
334	resolution(igrid,1) = cuphy(ij)
335	resolution(igrid,2) = cvphy(ij)
336	ENDDO
337
338	ALLOCATE(coastalflow(klon), stat = error)
339	IF (error /= 0) THEN
340	abort_message='Pb allocation coastalflow'
341	CALL abort_gcm(modname,abort_message,1)
342	ENDIF
343
344	ALLOCATE(riverflow(klon), stat = error)
345	IF (error /= 0) THEN
346	abort_message='Pb allocation riverflow'
347	CALL abort_gcm(modname,abort_message,1)
348	ENDIF
349	!
350	! Allocate variables needed for carbon_cycle_mod
351	!
352	IF (carbon_cycle_cpl) THEN
353	IF (.NOT. ALLOCATED(fco2_land_inst)) THEN
354	ALLOCATE(fco2_land_inst(klon),stat=error)
355	IF (error /= 0) CALL abort_gcm(modname,'Pb in allocation fco2_land_inst',1)
356
357	ALLOCATE(fco2_lu_inst(klon),stat=error)
358	IF(error /=0) CALL abort_gcm(modname,'Pb in allocation fco2_lu_inst',1)
359	END IF
360	END IF
361
362	ENDIF ! (fin debut)
363
364
365	!
366	! Appel a la routine sols continentaux
367	!
368	IF (lafin) lrestart_write = .TRUE.
369	IF (check) WRITE(lunout,*)'lafin ',lafin,lrestart_write
370
371	petA_orc(1:knon) = petBcoef(1:knon) * dtime
372	petB_orc(1:knon) = petAcoef(1:knon)
373	peqA_orc(1:knon) = peqBcoef(1:knon) * dtime
374	peqB_orc(1:knon) = peqAcoef(1:knon)
375
376	cdrag = 0.
377	cdrag(1:knon) = tq_cdrag(1:knon)
378
379	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/287.05temp_air(1:knon))*9.80665)
380	zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/RDtemp_air(1:knon))*RG)
381
382
383	! PF et PASB
384	! where(cdrag > 0.01)
385	! cdrag = 0.01
386	! endwhere
387	! write(,)'Cdrag = ',minval(cdrag),maxval(cdrag)
388
389
390	IF (debut) THEN
391	CALL Init_orchidee_index(knon,knindex,offset,ktindex)
392	CALL Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
393	CALL Init_synchro_omp
394
395	IF (knon > 0) THEN
396	#ifdef CPP_VEGET
397	CALL Init_intersurf(nbp_lon,nbp_lat,knon,ktindex,offset,orch_omp_size,orch_omp_rank,orch_comm)
398	#endif
399	ENDIF
400
401
402	IF (knon > 0) THEN
403
404	#ifdef CPP_VEGET
405	CALL intersurf_main (itime+itau_phy-1, iim, jjm+1, knon, ktindex, dtime, &
406	lrestart_read, lrestart_write, lalo, &
407	contfrac, neighbours, resolution, date0, &
408	zlev, u1_lay, v1_lay, spechum, temp_air, epot_air, ccanopy, &
409	cdrag, petA_orc, peqA_orc, petB_orc, peqB_orc, &
410	precip_rain, precip_snow, lwdown, swnet, swdown, ps, &
411	evap, fluxsens, fluxlat, coastalflow, riverflow, &
412	tsol_rad, tsurf_new, qsurf, albedo_out, emis_new, z0_new, &
413	lon_scat, lat_scat, q2m, t2m)
414	#endif
415	ENDIF
416
417	CALL Synchro_omp
418
419	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
420
421	ENDIF
422
423
424	! swdown_vrai(1:knon) = swnet(1:knon)/(1. - albedo_keep(1:knon))
425	swdown_vrai(1:knon) = swdown(1:knon)
426
427	IF (knon > 0) THEN
428	#ifdef CPP_VEGET
429	CALL intersurf_main (itime+itau_phy, iim, jjm+1, knon, ktindex, dtime, &
430	lrestart_read, lrestart_write, lalo, &
431	contfrac, neighbours, resolution, date0, &
432	zlev, u1_lay(1:knon), v1_lay(1:knon), spechum(1:knon), temp_air(1:knon), epot_air(1:knon), ccanopy(1:knon), &
433	cdrag(1:knon), petA_orc(1:knon), peqA_orc(1:knon), petB_orc(1:knon), peqB_orc(1:knon), &
434	precip_rain(1:knon), precip_snow(1:knon), lwdown(1:knon), swnet(1:knon), swdown_vrai(1:knon), ps(1:knon), &
435	evap(1:knon), fluxsens(1:knon), fluxlat(1:knon), coastalflow(1:knon), riverflow(1:knon), &
436	tsol_rad(1:knon), tsurf_new(1:knon), qsurf(1:knon), albedo_out(1:knon,:), emis_new(1:knon), z0_new(1:knon), &
437	lon_scat, lat_scat, q2m, t2m)
438	#endif
439	ENDIF
440
441	CALL Synchro_omp
442
443	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
444
445	!* Send to coupler
446	!
447	IF (type_ocean=='couple') THEN
448	CALL cpl_send_land_fields(itime, knon, knindex, &
449	riverflow, coastalflow)
450	ENDIF
451
452	alb1_new(1:knon) = albedo_out(1:knon,1)
453	alb2_new(1:knon) = albedo_out(1:knon,2)
454
455	! Convention orchidee: positif vers le haut
456	fluxsens(1:knon) = -1. * fluxsens(1:knon)
457	fluxlat(1:knon) = -1. * fluxlat(1:knon)
458
459	! evap = -1. * evap
460
461	IF (debut) lrestart_read = .FALSE.
462
463	IF (debut) CALL Finalize_surf_para
464
465
466	! JG : TEMPORAIRE!!!! Les variables fco2_land_comp et fco2_lu_comp seront plus tard en sortie d'ORCHIDEE
467	! ici mis a valeur quelquonque pour test. Ces variables sont sur la grille compresse avec uniquement des points de terres
468
469	fco2_land_comp(:) = 1.
470	fco2_lu_comp(:) = 10.
471
472	! Decompress variables for the module carbon_cycle_mod
473	IF (carbon_cycle_cpl) THEN
474	fco2_land_inst(:)=0.
475	fco2_lu_inst(:)=0.
476
477	DO igrid = 1, knon
478	ireal = knindex(igrid)
479	fco2_land_inst(ireal) = fco2_land_comp(igrid)
480	fco2_lu_inst(ireal) = fco2_lu_comp(igrid)
481	END DO
482	END IF
483
484	END SUBROUTINE surf_land_orchidee
485	!
486	!****************************************************************************************
487	!
488	SUBROUTINE Init_orchidee_index(knon,knindex,offset,ktindex)
489	USE mod_surf_para
490	USE mod_grid_phy_lmdz
491
492	INTEGER,INTENT(IN) :: knon
493	INTEGER,INTENT(IN) :: knindex(klon)
494	INTEGER,INTENT(OUT) :: offset
495	INTEGER,INTENT(OUT) :: ktindex(klon)
496
497	INTEGER :: ktindex_glo(knon_glo)
498	INTEGER :: offset_para(0:omp_size*mpi_size-1)
499	INTEGER :: LastPoint
500	INTEGER :: task
501
502	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
503
504	CALL gather_surf(ktindex(1:knon),ktindex_glo)
505
506	IF (is_mpi_root .AND. is_omp_root) THEN
507	LastPoint=0
508	DO Task=0,mpi_size*omp_size-1
509	IF (knon_glo_para(Task)>0) THEN
510	offset_para(task)= LastPoint-MOD(LastPoint,nbp_lon)
511	LastPoint=ktindex_glo(knon_glo_end_para(task))
512	ENDIF
513	ENDDO
514	ENDIF
515
516	CALL bcast(offset_para)
517
518	offset=offset_para(omp_size*mpi_rank+omp_rank)
519
520	ktindex(1:knon)=ktindex(1:knon)-offset
521
522	END SUBROUTINE Init_orchidee_index
523
524	!
525	!*********************** *************************************************************
526	!
527
528	SUBROUTINE Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
529	USE mod_surf_para
530
531	#ifdef CPP_MPI
532	INCLUDE 'mpif.h'
533	#endif
534
535	INTEGER,INTENT(OUT) :: orch_comm
536	INTEGER,INTENT(OUT) :: orch_omp_size
537	INTEGER,INTENT(OUT) :: orch_omp_rank
538	INTEGER :: color
539	INTEGER :: i,ierr
540	!
541	! End definition
542	!****************************************************************************************
543
544
545	IF (is_omp_root) THEN
546
547	IF (knon_mpi==0) THEN
548	color = 0
549	ELSE
550	color = 1
551	ENDIF
552
553	#ifdef CPP_MPI
554	CALL MPI_COMM_SPLIT(COMM_LMDZ_PHY,color,mpi_rank,orch_comm,ierr)
555	#endif
556
557	ENDIF
558	CALL bcast_omp(orch_comm)
559
560	IF (knon_mpi /= 0) THEN
561	orch_omp_size=0
562	DO i=0,omp_size-1
563	IF (knon_omp_para(i) /=0) THEN
564	orch_omp_size=orch_omp_size+1
565	IF (i==omp_rank) orch_omp_rank=orch_omp_size-1
566	ENDIF
567	ENDDO
568	ENDIF
569
570
571	END SUBROUTINE Get_orchidee_communicator
572	!
573	!****************************************************************************************
574	!
575
576	SUBROUTINE Init_neighbours(knon,neighbours,knindex,pctsrf)
577	USE mod_grid_phy_lmdz
578	USE mod_surf_para
579	INCLUDE "indicesol.h"
580
581	#ifdef CPP_MPI
582	INCLUDE 'mpif.h'
583	#endif
584
585	! Input arguments
586	!****************************************************************************************
587	INTEGER, INTENT(IN) :: knon
588	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
589	REAL, DIMENSION(klon), INTENT(IN) :: pctsrf
590
591	! Output arguments
592	!****************************************************************************************
593	INTEGER, DIMENSION(knon,8), INTENT(OUT) :: neighbours
594
595	! Local variables
596	!****************************************************************************************
597	INTEGER :: i, igrid, jj, ij, iglob
598	INTEGER :: ierr, ireal, index
599	INTEGER, DIMENSION(8,3) :: off_ini
600	INTEGER, DIMENSION(8) :: offset
601	INTEGER, DIMENSION(nbp_lon,nbp_lat) :: correspond
602	INTEGER, DIMENSION(knon_glo) :: ktindex_glo
603	INTEGER, DIMENSION(knon_glo,8) :: neighbours_glo
604	REAL, DIMENSION(klon_glo) :: pctsrf_glo
605	INTEGER :: ktindex(klon)
606	!
607	! End definition
608	!****************************************************************************************
609
610	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
611
612	CALL gather_surf(ktindex(1:knon),ktindex_glo)
613	CALL gather(pctsrf,pctsrf_glo)
614
615	IF (is_mpi_root .AND. is_omp_root) THEN
616	neighbours_glo(:,:)=-1
617	! Initialisation des offset
618	!
619	! offset bord ouest
620	off_ini(1,1) = - nbp_lon ; off_ini(2,1) = - nbp_lon + 1 ; off_ini(3,1) = 1
621	off_ini(4,1) = nbp_lon + 1 ; off_ini(5,1) = nbp_lon ; off_ini(6,1) = 2 * nbp_lon - 1
622	off_ini(7,1) = nbp_lon -1 ; off_ini(8,1) = - 1
623	! offset point normal
624	off_ini(1,2) = - nbp_lon ; off_ini(2,2) = - nbp_lon + 1 ; off_ini(3,2) = 1
625	off_ini(4,2) = nbp_lon + 1 ; off_ini(5,2) = nbp_lon ; off_ini(6,2) = nbp_lon - 1
626	off_ini(7,2) = -1 ; off_ini(8,2) = - nbp_lon - 1
627	! offset bord est
628	off_ini(1,3) = - nbp_lon ; off_ini(2,3) = - 2 * nbp_lon + 1 ; off_ini(3,3) = - nbp_lon + 1
629	off_ini(4,3) = 1 ; off_ini(5,3) = nbp_lon ; off_ini(6,3) = nbp_lon - 1
630	off_ini(7,3) = -1 ; off_ini(8,3) = - nbp_lon - 1
631	!
632	!
633	! Attention aux poles
634	!
635	DO igrid = 1, knon_glo
636	index = ktindex_glo(igrid)
637	jj = INT((index - 1)/nbp_lon) + 1
638	ij = index - (jj - 1) * nbp_lon
639	correspond(ij,jj) = igrid
640	ENDDO
641
642	DO igrid = 1, knon_glo
643	iglob = ktindex_glo(igrid)
644
645	IF (MOD(iglob, nbp_lon) == 1) THEN
646	offset = off_ini(:,1)
647	ELSE IF(MOD(iglob, nbp_lon) == 0) THEN
648	offset = off_ini(:,3)
649	ELSE
650	offset = off_ini(:,2)
651	ENDIF
652
653	DO i = 1, 8
654	index = iglob + offset(i)
655	ireal = (MIN(MAX(1, index - nbp_lon + 1), klon_glo))
656	IF (pctsrf_glo(ireal) > EPSFRA) THEN
657	jj = INT((index - 1)/nbp_lon) + 1
658	ij = index - (jj - 1) * nbp_lon
659	neighbours_glo(igrid, i) = correspond(ij, jj)
660	ENDIF
661	ENDDO
662	ENDDO
663
664	ENDIF
665
666	DO i = 1, 8
667	CALL scatter_surf(neighbours_glo(:,i),neighbours(1:knon,i))
668	ENDDO
669	END SUBROUTINE Init_neighbours
670
671	!
672	!****************************************************************************************
673	!
674	#endif
675	END MODULE surf_land_orchidee_mod

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