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surf_land_orchidee_mod.F90 @ 2428

Last change on this file since 2428 was 2410, checked in by jghattas, 9 years ago

Added the variable yrmu0(cosine of the solar zenith angle) into ORCHIDEE:

Current version of LMDZ can now be used with ORCHIDEE trunk revisions from rev 2961 and newer. For revision 1078-2960 on ORCHIDEE trunk, a small modification (change coszang into sinang) in surf_land_orchidee_mod.f90 is needed. For older versions than ORCHIDEE trunk revision 1078, the interface in surf_land_orchidee_noopenmp_mod.f90 should be used (add cpp key ORCHIDEE_NOOPENMP).

For details see ticket https://forge.ipsl.jussieu.fr/orchidee/ticket/217

Property copyright set to
Name of program: LMDZ
Creation date: 1984
Version: LMDZ5
License: CeCILL version 2
Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
See the license file in the root directory
Property svn:eol-style set to native
Property svn:executable set to *
Property svn:keywords set to Author Date Id Revision

File size: 22.6 KB

Line
1	!
2	MODULE surf_land_orchidee_mod
3	#ifndef ORCHIDEE_NOOPENMP
4	!
5	! This module controles the interface towards the model ORCHIDEE.
6	!
7	! Compatibility with ORCHIDIEE :
8	! The current version can be used with ORCHIDEE/trunk from revision 2961.
9	! This interface can also be used with ORCHIDEE/trunk revision 1078-2960 if changing
10	! coszang=yrmu0 into sinang=yrmu0 at 2 places later below in this module.
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	LOGICAL, ALLOCATABLE, SAVE :: flag_omp(:)
33	CONTAINS
34	!
35	!****************************************************************************************
36	!
37	SUBROUTINE surf_land_orchidee(itime, dtime, date0, knon, &
38	knindex, rlon, rlat, yrmu0, pctsrf, &
39	debut, lafin, &
40	plev, u1_lay, v1_lay, gustiness, temp_air, spechum, epot_air, ccanopy, &
41	tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, &
42	precip_rain, precip_snow, lwdown, swnet, swdown, &
43	ps, q2m, t2m, &
44	evap, fluxsens, fluxlat, &
45	tsol_rad, tsurf_new, alb1_new, alb2_new, &
46	emis_new, z0_new, qsurf)
47
48	USE mod_surf_para
49	USE mod_synchro_omp
50	USE carbon_cycle_mod, ONLY : carbon_cycle_cpl
51	USE indice_sol_mod
52	USE print_control_mod, ONLY: lunout
53	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat
54	#ifdef CPP_VEGET
55	USE time_phylmdz_mod, ONLY: itau_phy
56	#endif
57	!
58	! Cette routine sert d'interface entre le modele atmospherique et le
59	! modele de sol continental. Appel a sechiba
60	!
61	! L. Fairhead 02/2000
62	!
63	! input:
64	! itime numero du pas de temps
65	! dtime pas de temps de la physique (en s)
66	! nisurf index de la surface a traiter (1 = sol continental)
67	! knon nombre de points de la surface a traiter
68	! knindex index des points de la surface a traiter
69	! rlon longitudes de la grille entiere
70	! rlat latitudes de la grille entiere
71	! pctsrf tableau des fractions de surface de chaque maille
72	! debut logical: 1er appel a la physique (lire les restart)
73	! lafin logical: dernier appel a la physique (ecrire les restart)
74	! (si false calcul simplifie des fluxs sur les continents)
75	! plev hauteur de la premiere couche (Pa)
76	! u1_lay vitesse u 1ere couche
77	! v1_lay vitesse v 1ere couche
78	! temp_air temperature de l'air 1ere couche
79	! spechum humidite specifique 1ere couche
80	! epot_air temp pot de l'air
81	! ccanopy concentration CO2 canopee, correspond au co2_send de
82	! carbon_cycle_mod ou valeur constant co2_ppm
83	! tq_cdrag cdrag
84	! petAcoef coeff. A de la resolution de la CL pour t
85	! peqAcoef coeff. A de la resolution de la CL pour q
86	! petBcoef coeff. B de la resolution de la CL pour t
87	! peqBcoef coeff. B de la resolution de la CL pour q
88	! precip_rain precipitation liquide
89	! precip_snow precipitation solide
90	! lwdown flux IR descendant a la surface
91	! swnet flux solaire net
92	! swdown flux solaire entrant a la surface
93	! ps pression au sol
94	! radsol rayonnement net aus sol (LW + SW)
95	!
96	!
97	! output:
98	! evap evaporation totale
99	! fluxsens flux de chaleur sensible
100	! fluxlat flux de chaleur latente
101	! tsol_rad
102	! tsurf_new temperature au sol
103	! alb1_new albedo in visible SW interval
104	! alb2_new albedo in near IR interval
105	! emis_new emissivite
106	! z0_new surface roughness
107	! qsurf air moisture at surface
108	!
109	INCLUDE "YOMCST.h"
110
111	!
112	! Parametres d'entree
113	!****************************************************************************************
114	INTEGER, INTENT(IN) :: itime
115	REAL, INTENT(IN) :: dtime
116	REAL, INTENT(IN) :: date0
117	INTEGER, INTENT(IN) :: knon
118	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
119	LOGICAL, INTENT(IN) :: debut, lafin
120	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
121	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
122	REAL, DIMENSION(klon), INTENT(IN) :: yrmu0 ! cosine of solar zenith angle
123	REAL, DIMENSION(klon), INTENT(IN) :: plev
124	REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay, gustiness
125	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
126	REAL, DIMENSION(klon), INTENT(IN) :: epot_air, ccanopy
127	REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag
128	REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef
129	REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef
130	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
131	REAL, DIMENSION(klon), INTENT(IN) :: lwdown, swnet, swdown, ps
132	REAL, DIMENSION(klon), INTENT(IN) :: q2m, t2m
133
134	! Parametres de sortie
135	!****************************************************************************************
136	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat, qsurf
137	REAL, DIMENSION(klon), INTENT(OUT) :: tsol_rad, tsurf_new
138	REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new
139	REAL, DIMENSION(klon), INTENT(OUT) :: emis_new, z0_new
140
141	! Local
142	!****************************************************************************************
143	INTEGER :: ij, jj, igrid, ireal, index
144	INTEGER :: error
145	REAL, DIMENSION(klon) :: swdown_vrai
146	CHARACTER (len = 20) :: modname = 'surf_land_orchidee'
147	CHARACTER (len = 80) :: abort_message
148	LOGICAL,SAVE :: check = .FALSE.
149	!$OMP THREADPRIVATE(check)
150
151	! type de couplage dans sechiba
152	! character (len=10) :: coupling = 'implicit'
153	! drapeaux controlant les appels dans SECHIBA
154	! type(control_type), save :: control_in
155	! Preserved albedo
156	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: albedo_keep, zlev
157	!$OMP THREADPRIVATE(albedo_keep,zlev)
158	! coordonnees geographiques
159	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: lalo
160	!$OMP THREADPRIVATE(lalo)
161	! pts voisins
162	INTEGER,ALLOCATABLE, DIMENSION(:,:), SAVE :: neighbours
163	!$OMP THREADPRIVATE(neighbours)
164	! fractions continents
165	REAL,ALLOCATABLE, DIMENSION(:), SAVE :: contfrac
166	!$OMP THREADPRIVATE(contfrac)
167	! resolution de la grille
168	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: resolution
169	!$OMP THREADPRIVATE(resolution)
170
171	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: lon_scat, lat_scat
172	!$OMP THREADPRIVATE(lon_scat,lat_scat)
173
174	LOGICAL, SAVE :: lrestart_read = .TRUE.
175	!$OMP THREADPRIVATE(lrestart_read)
176	LOGICAL, SAVE :: lrestart_write = .FALSE.
177	!$OMP THREADPRIVATE(lrestart_write)
178
179	REAL, DIMENSION(knon,2) :: albedo_out
180
181	! Pb de nomenclature
182	REAL, DIMENSION(klon) :: petA_orc, peqA_orc
183	REAL, DIMENSION(klon) :: petB_orc, peqB_orc
184	! Pb de correspondances de grilles
185	INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: ig, jg
186	!$OMP THREADPRIVATE(ig,jg)
187	INTEGER :: indi, indj
188	INTEGER, SAVE, ALLOCATABLE,DIMENSION(:) :: ktindex
189	!$OMP THREADPRIVATE(ktindex)
190
191	! Essai cdrag
192	REAL, DIMENSION(klon) :: cdrag
193	INTEGER,SAVE :: offset
194	!$OMP THREADPRIVATE(offset)
195
196	REAL, DIMENSION(klon_glo) :: rlon_g,rlat_g
197	INTEGER, SAVE :: orch_comm
198	!$OMP THREADPRIVATE(orch_comm)
199
200	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: coastalflow
201	!$OMP THREADPRIVATE(coastalflow)
202	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: riverflow
203	!$OMP THREADPRIVATE(riverflow)
204
205	INTEGER :: orch_omp_rank
206	INTEGER :: orch_omp_size
207	!
208	! Fin definition
209	!****************************************************************************************
210
211	IF (check) WRITE(lunout,*)'Entree ', modname
212
213	! Initialisation
214
215	IF (debut) THEN
216	! Test of coherence between variable ok_veget and cpp key CPP_VEGET
217	#ifndef CPP_VEGET
218	abort_message='Pb de coherence: ok_veget = .true. mais CPP_VEGET = .false.'
219	CALL abort_physic(modname,abort_message,1)
220	#endif
221
222	CALL Init_surf_para(knon)
223	ALLOCATE(ktindex(knon))
224	IF ( .NOT. ALLOCATED(albedo_keep)) THEN
225	!ym ALLOCATE(albedo_keep(klon))
226	!ym bizarre que non alloué en knon precedement
227	ALLOCATE(albedo_keep(knon))
228	ALLOCATE(zlev(knon))
229	ENDIF
230	! Pb de correspondances de grilles
231	ALLOCATE(ig(klon))
232	ALLOCATE(jg(klon))
233	ig(1) = 1
234	jg(1) = 1
235	indi = 0
236	indj = 2
237	DO igrid = 2, klon - 1
238	indi = indi + 1
239	IF ( indi > nbp_lon) THEN
240	indi = 1
241	indj = indj + 1
242	ENDIF
243	ig(igrid) = indi
244	jg(igrid) = indj
245	ENDDO
246	ig(klon) = 1
247	jg(klon) = nbp_lat
248
249	IF ((.NOT. ALLOCATED(lalo))) THEN
250	ALLOCATE(lalo(knon,2), stat = error)
251	IF (error /= 0) THEN
252	abort_message='Pb allocation lalo'
253	CALL abort_physic(modname,abort_message,1)
254	ENDIF
255	ENDIF
256	IF ((.NOT. ALLOCATED(lon_scat))) THEN
257	ALLOCATE(lon_scat(nbp_lon,nbp_lat), stat = error)
258	IF (error /= 0) THEN
259	abort_message='Pb allocation lon_scat'
260	CALL abort_physic(modname,abort_message,1)
261	ENDIF
262	ENDIF
263	IF ((.NOT. ALLOCATED(lat_scat))) THEN
264	ALLOCATE(lat_scat(nbp_lon,nbp_lat), stat = error)
265	IF (error /= 0) THEN
266	abort_message='Pb allocation lat_scat'
267	CALL abort_physic(modname,abort_message,1)
268	ENDIF
269	ENDIF
270	lon_scat = 0.
271	lat_scat = 0.
272	DO igrid = 1, knon
273	index = knindex(igrid)
274	lalo(igrid,2) = rlon(index)
275	lalo(igrid,1) = rlat(index)
276	ENDDO
277
278
279
280	CALL Gather(rlon,rlon_g)
281	CALL Gather(rlat,rlat_g)
282
283	IF (is_mpi_root) THEN
284	index = 1
285	DO jj = 2, nbp_lat-1
286	DO ij = 1, nbp_lon
287	index = index + 1
288	lon_scat(ij,jj) = rlon_g(index)
289	lat_scat(ij,jj) = rlat_g(index)
290	ENDDO
291	ENDDO
292	lon_scat(:,1) = lon_scat(:,2)
293	lat_scat(:,1) = rlat_g(1)
294	lon_scat(:,nbp_lat) = lon_scat(:,2)
295	lat_scat(:,nbp_lat) = rlat_g(klon_glo)
296	ENDIF
297
298	CALL bcast(lon_scat)
299	CALL bcast(lat_scat)
300	!
301	! Allouer et initialiser le tableau des voisins et des fraction de continents
302	!
303	IF ( (.NOT.ALLOCATED(neighbours))) THEN
304	ALLOCATE(neighbours(knon,8), stat = error)
305	IF (error /= 0) THEN
306	abort_message='Pb allocation neighbours'
307	CALL abort_physic(modname,abort_message,1)
308	ENDIF
309	ENDIF
310	neighbours = -1.
311	IF (( .NOT. ALLOCATED(contfrac))) THEN
312	ALLOCATE(contfrac(knon), stat = error)
313	IF (error /= 0) THEN
314	abort_message='Pb allocation contfrac'
315	CALL abort_physic(modname,abort_message,1)
316	ENDIF
317	ENDIF
318
319	DO igrid = 1, knon
320	ireal = knindex(igrid)
321	contfrac(igrid) = pctsrf(ireal,is_ter)
322	ENDDO
323
324
325	CALL Init_neighbours(knon,neighbours,knindex,pctsrf(:,is_ter))
326
327	!
328	! Allocation et calcul resolutions
329	IF ( (.NOT.ALLOCATED(resolution))) THEN
330	ALLOCATE(resolution(knon,2), stat = error)
331	IF (error /= 0) THEN
332	abort_message='Pb allocation resolution'
333	CALL abort_physic(modname,abort_message,1)
334	ENDIF
335	ENDIF
336	DO igrid = 1, knon
337	ij = knindex(igrid)
338	resolution(igrid,1) = dx(ij)
339	resolution(igrid,2) = dy(ij)
340	ENDDO
341
342	ALLOCATE(coastalflow(klon), stat = error)
343	IF (error /= 0) THEN
344	abort_message='Pb allocation coastalflow'
345	CALL abort_physic(modname,abort_message,1)
346	ENDIF
347
348	ALLOCATE(riverflow(klon), stat = error)
349	IF (error /= 0) THEN
350	abort_message='Pb allocation riverflow'
351	CALL abort_physic(modname,abort_message,1)
352	ENDIF
353	!
354	! carbon_cycle_cpl not possible with this interface and version of ORHCHIDEE
355	!
356	IF (carbon_cycle_cpl) THEN
357	abort_message='carbon_cycle_cpl not yet possible with this interface of ORCHIDEE'
358	CALL abort_physic(modname,abort_message,1)
359	END IF
360
361	ENDIF ! (fin debut)
362
363
364	!
365	! Appel a la routine sols continentaux
366	!
367	IF (lafin) lrestart_write = .TRUE.
368	IF (check) WRITE(lunout,*)'lafin ',lafin,lrestart_write
369
370	petA_orc(1:knon) = petBcoef(1:knon) * dtime
371	petB_orc(1:knon) = petAcoef(1:knon)
372	peqA_orc(1:knon) = peqBcoef(1:knon) * dtime
373	peqB_orc(1:knon) = peqAcoef(1:knon)
374
375	cdrag = 0.
376	cdrag(1:knon) = tq_cdrag(1:knon)
377
378	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/287.05temp_air(1:knon))*9.80665)
379	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/RDtemp_air(1:knon))*RG)
380	zlev(1:knon) = plev(1:knon)RDtemp_air(1:knon)/((ps(1:knon)100.0)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, nbp_lon, nbp_lat, 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, coszang=yrmu0)
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, nbp_lon, nbp_lat, 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, coszang=yrmu0(1:knon))
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	END SUBROUTINE surf_land_orchidee
467	!
468	!****************************************************************************************
469	!
470	SUBROUTINE Init_orchidee_index(knon,knindex,offset,ktindex)
471	USE mod_surf_para
472	USE mod_grid_phy_lmdz
473
474	INTEGER,INTENT(IN) :: knon
475	INTEGER,INTENT(IN) :: knindex(klon)
476	INTEGER,INTENT(OUT) :: offset
477	INTEGER,INTENT(OUT) :: ktindex(klon)
478
479	INTEGER :: ktindex_glo(knon_glo)
480	INTEGER :: offset_para(0:omp_size*mpi_size-1)
481	INTEGER :: LastPoint
482	INTEGER :: task
483
484	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
485
486	CALL gather_surf(ktindex(1:knon),ktindex_glo)
487
488	IF (is_mpi_root .AND. is_omp_root) THEN
489	LastPoint=0
490	DO Task=0,mpi_size*omp_size-1
491	IF (knon_glo_para(Task)>0) THEN
492	offset_para(task)= LastPoint-MOD(LastPoint,nbp_lon)
493	LastPoint=ktindex_glo(knon_glo_end_para(task))
494	ENDIF
495	ENDDO
496	ENDIF
497
498	CALL bcast(offset_para)
499
500	offset=offset_para(omp_size*mpi_rank+omp_rank)
501
502	ktindex(1:knon)=ktindex(1:knon)-offset
503
504	END SUBROUTINE Init_orchidee_index
505
506	!
507	!*********************** *************************************************************
508	!
509
510	SUBROUTINE Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
511	USE mod_surf_para
512
513	#ifdef CPP_MPI
514	INCLUDE 'mpif.h'
515	#endif
516
517	INTEGER,INTENT(OUT) :: orch_comm
518	INTEGER,INTENT(OUT) :: orch_omp_size
519	INTEGER,INTENT(OUT) :: orch_omp_rank
520	INTEGER :: color
521	INTEGER :: i,ierr
522	!
523	! End definition
524	!****************************************************************************************
525
526
527	IF (is_omp_root) THEN
528
529	IF (knon_mpi==0) THEN
530	color = 0
531	ELSE
532	color = 1
533	ENDIF
534
535	#ifdef CPP_MPI
536	CALL MPI_COMM_SPLIT(COMM_LMDZ_PHY,color,mpi_rank,orch_comm,ierr)
537	#endif
538
539	ENDIF
540	CALL bcast_omp(orch_comm)
541
542	IF (knon_mpi /= 0) THEN
543	orch_omp_size=0
544	DO i=0,omp_size-1
545	IF (knon_omp_para(i) /=0) THEN
546	orch_omp_size=orch_omp_size+1
547	IF (i==omp_rank) orch_omp_rank=orch_omp_size-1
548	ENDIF
549	ENDDO
550	ENDIF
551
552
553	END SUBROUTINE Get_orchidee_communicator
554	!
555	!****************************************************************************************
556	!
557
558	SUBROUTINE Init_neighbours(knon,neighbours,knindex,pctsrf)
559	USE mod_grid_phy_lmdz
560	USE mod_surf_para
561	USE indice_sol_mod
562
563	#ifdef CPP_MPI
564	INCLUDE 'mpif.h'
565	#endif
566
567	! Input arguments
568	!****************************************************************************************
569	INTEGER, INTENT(IN) :: knon
570	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
571	REAL, DIMENSION(klon), INTENT(IN) :: pctsrf
572
573	! Output arguments
574	!****************************************************************************************
575	INTEGER, DIMENSION(knon,8), INTENT(OUT) :: neighbours
576
577	! Local variables
578	!****************************************************************************************
579	INTEGER :: i, igrid, jj, ij, iglob
580	INTEGER :: ierr, ireal, index
581	INTEGER, DIMENSION(8,3) :: off_ini
582	INTEGER, DIMENSION(8) :: offset
583	INTEGER, DIMENSION(nbp_lon,nbp_lat) :: correspond
584	INTEGER, DIMENSION(knon_glo) :: ktindex_glo
585	INTEGER, DIMENSION(knon_glo,8) :: neighbours_glo
586	REAL, DIMENSION(klon_glo) :: pctsrf_glo
587	INTEGER :: ktindex(klon)
588	!
589	! End definition
590	!****************************************************************************************
591
592	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
593
594	CALL gather_surf(ktindex(1:knon),ktindex_glo)
595	CALL gather(pctsrf,pctsrf_glo)
596
597	IF (is_mpi_root .AND. is_omp_root) THEN
598	neighbours_glo(:,:)=-1
599	! Initialisation des offset
600	!
601	! offset bord ouest
602	off_ini(1,1) = - nbp_lon ; off_ini(2,1) = - nbp_lon + 1 ; off_ini(3,1) = 1
603	off_ini(4,1) = nbp_lon + 1 ; off_ini(5,1) = nbp_lon ; off_ini(6,1) = 2 * nbp_lon - 1
604	off_ini(7,1) = nbp_lon -1 ; off_ini(8,1) = - 1
605	! offset point normal
606	off_ini(1,2) = - nbp_lon ; off_ini(2,2) = - nbp_lon + 1 ; off_ini(3,2) = 1
607	off_ini(4,2) = nbp_lon + 1 ; off_ini(5,2) = nbp_lon ; off_ini(6,2) = nbp_lon - 1
608	off_ini(7,2) = -1 ; off_ini(8,2) = - nbp_lon - 1
609	! offset bord est
610	off_ini(1,3) = - nbp_lon ; off_ini(2,3) = - 2 * nbp_lon + 1 ; off_ini(3,3) = - nbp_lon + 1
611	off_ini(4,3) = 1 ; off_ini(5,3) = nbp_lon ; off_ini(6,3) = nbp_lon - 1
612	off_ini(7,3) = -1 ; off_ini(8,3) = - nbp_lon - 1
613	!
614	!
615	! Attention aux poles
616	!
617	DO igrid = 1, knon_glo
618	index = ktindex_glo(igrid)
619	jj = INT((index - 1)/nbp_lon) + 1
620	ij = index - (jj - 1) * nbp_lon
621	correspond(ij,jj) = igrid
622	ENDDO
623	!sonia : Les mailles des voisines doivent etre toutes egales (pour couplage orchidee)
624	IF (knon_glo == 1) THEN
625	igrid = 1
626	DO i = 1,8
627	neighbours_glo(igrid, i) = igrid
628	ENDDO
629	ELSE
630	print*,'sonia : knon_glo,ij,jj', knon_glo, ij,jj
631
632	DO igrid = 1, knon_glo
633	iglob = ktindex_glo(igrid)
634
635	IF (MOD(iglob, nbp_lon) == 1) THEN
636	offset = off_ini(:,1)
637	ELSE IF(MOD(iglob, nbp_lon) == 0) THEN
638	offset = off_ini(:,3)
639	ELSE
640	offset = off_ini(:,2)
641	ENDIF
642
643	DO i = 1, 8
644	index = iglob + offset(i)
645	ireal = (MIN(MAX(1, index - nbp_lon + 1), klon_glo))
646	IF (pctsrf_glo(ireal) > EPSFRA) THEN
647	jj = INT((index - 1)/nbp_lon) + 1
648	ij = index - (jj - 1) * nbp_lon
649	neighbours_glo(igrid, i) = correspond(ij, jj)
650	ENDIF
651	ENDDO
652	ENDDO
653	ENDIF !fin knon_glo == 1
654
655	ENDIF
656
657	DO i = 1, 8
658	CALL scatter_surf(neighbours_glo(:,i),neighbours(1:knon,i))
659	ENDDO
660	END SUBROUTINE Init_neighbours
661
662	!
663	!****************************************************************************************
664	!
665	#endif
666	END MODULE surf_land_orchidee_mod

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