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surf_land_orchidee_noz0h_mod.F90 @ 2912

Last change on this file since 2912 was 2912, checked in by jghattas, 7 years ago
Added OMP_THREADPRIVATE for varibales fields_cpl, nb_fields_cpl, type_veget. Removed variable flag_omp never used.
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: 22.9 KB

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1	!
2	MODULE surf_land_orchidee_noz0h_mod
3	#ifdef ORCHIDEE_NOZ0H
4	!
5	! This module controles the interface towards the model ORCHIDEE.
6	!
7	! Compatibility with ORCHIDIEE :
8	! This module is compiled only if CPP key ORCHIDEE_NOZ0H is defined.
9	! This version can be used with ORCHIDEE/trunk revision 2961-3525.
10	! It is possible to use this interface with later versions of ORCHIDEE/trunk than 3525 but
11	! in that case the option ROUGH_DYN=y in ORCHIDEE should not be set.
12	! This interface can also be used with ORCHIDEE/trunk revision 1078-2960 if changing
13	! coszang=yrmu0 into sinang=yrmu0 at 2 places later below in this module.
14	!
15	! Subroutines in this module : surf_land_orchidee
16	! Init_orchidee_index
17	! Get_orchidee_communicator
18	! Init_neighbours
19
20	USE dimphy
21	#ifdef CPP_VEGET
22	USE intersurf ! module d'ORCHIDEE
23	#endif
24	USE cpl_mod, ONLY : cpl_send_land_fields
25	USE surface_data, ONLY : type_ocean
26	USE geometry_mod, ONLY : dx, dy
27	USE mod_grid_phy_lmdz
28	USE mod_phys_lmdz_para, mpi_root_rank=>mpi_master
29
30	IMPLICIT NONE
31
32	PRIVATE
33	PUBLIC :: surf_land_orchidee
34
35	CONTAINS
36	!
37	!****************************************************************************************
38	!
39	SUBROUTINE surf_land_orchidee(itime, dtime, date0, knon, &
40	knindex, rlon, rlat, yrmu0, pctsrf, &
41	debut, lafin, &
42	plev, u1_lay, v1_lay, gustiness, temp_air, spechum, epot_air, ccanopy, &
43	tq_cdrag, petAcoef, peqAcoef, petBcoef, peqBcoef, &
44	precip_rain, precip_snow, lwdown, swnet, swdown, &
45	ps, q2m, t2m, &
46	evap, fluxsens, fluxlat, &
47	tsol_rad, tsurf_new, alb1_new, alb2_new, &
48	emis_new, z0_new, z0h_new, qsurf)
49
50	USE mod_surf_para
51	USE mod_synchro_omp
52	USE carbon_cycle_mod, ONLY : carbon_cycle_cpl
53	USE indice_sol_mod
54	USE print_control_mod, ONLY: lunout
55	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat
56	#ifdef CPP_VEGET
57	USE time_phylmdz_mod, ONLY: itau_phy
58	#endif
59	!
60	! Cette routine sert d'interface entre le modele atmospherique et le
61	! modele de sol continental. Appel a sechiba
62	!
63	! L. Fairhead 02/2000
64	!
65	! input:
66	! itime numero du pas de temps
67	! dtime pas de temps de la physique (en s)
68	! nisurf index de la surface a traiter (1 = sol continental)
69	! knon nombre de points de la surface a traiter
70	! knindex index des points de la surface a traiter
71	! rlon longitudes de la grille entiere
72	! rlat latitudes de la grille entiere
73	! pctsrf tableau des fractions de surface de chaque maille
74	! debut logical: 1er appel a la physique (lire les restart)
75	! lafin logical: dernier appel a la physique (ecrire les restart)
76	! (si false calcul simplifie des fluxs sur les continents)
77	! plev hauteur de la premiere couche (Pa)
78	! u1_lay vitesse u 1ere couche
79	! v1_lay vitesse v 1ere couche
80	! temp_air temperature de l'air 1ere couche
81	! spechum humidite specifique 1ere couche
82	! epot_air temp pot de l'air
83	! ccanopy concentration CO2 canopee, correspond au co2_send de
84	! carbon_cycle_mod ou valeur constant co2_ppm
85	! tq_cdrag cdrag
86	! petAcoef coeff. A de la resolution de la CL pour t
87	! peqAcoef coeff. A de la resolution de la CL pour q
88	! petBcoef coeff. B de la resolution de la CL pour t
89	! peqBcoef coeff. B de la resolution de la CL pour q
90	! precip_rain precipitation liquide
91	! precip_snow precipitation solide
92	! lwdown flux IR descendant a la surface
93	! swnet flux solaire net
94	! swdown flux solaire entrant a la surface
95	! ps pression au sol
96	! radsol rayonnement net aus sol (LW + SW)
97	!
98	!
99	! output:
100	! evap evaporation totale
101	! fluxsens flux de chaleur sensible
102	! fluxlat flux de chaleur latente
103	! tsol_rad
104	! tsurf_new temperature au sol
105	! alb1_new albedo in visible SW interval
106	! alb2_new albedo in near IR interval
107	! emis_new emissivite
108	! z0_new surface roughness
109	! z0h_new surface roughness, it is a copy from z0_new
110	! qsurf air moisture at surface
111	!
112	INCLUDE "YOMCST.h"
113
114	!
115	! Parametres d'entree
116	!****************************************************************************************
117	INTEGER, INTENT(IN) :: itime
118	REAL, INTENT(IN) :: dtime
119	REAL, INTENT(IN) :: date0
120	INTEGER, INTENT(IN) :: knon
121	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
122	LOGICAL, INTENT(IN) :: debut, lafin
123	REAL, DIMENSION(klon,nbsrf), INTENT(IN) :: pctsrf
124	REAL, DIMENSION(klon), INTENT(IN) :: rlon, rlat
125	REAL, DIMENSION(klon), INTENT(IN) :: yrmu0 ! cosine of solar zenith angle
126	REAL, DIMENSION(klon), INTENT(IN) :: plev
127	REAL, DIMENSION(klon), INTENT(IN) :: u1_lay, v1_lay, gustiness
128	REAL, DIMENSION(klon), INTENT(IN) :: temp_air, spechum
129	REAL, DIMENSION(klon), INTENT(IN) :: epot_air, ccanopy
130	REAL, DIMENSION(klon), INTENT(IN) :: tq_cdrag
131	REAL, DIMENSION(klon), INTENT(IN) :: petAcoef, peqAcoef
132	REAL, DIMENSION(klon), INTENT(IN) :: petBcoef, peqBcoef
133	REAL, DIMENSION(klon), INTENT(IN) :: precip_rain, precip_snow
134	REAL, DIMENSION(klon), INTENT(IN) :: lwdown, swnet, swdown, ps
135	REAL, DIMENSION(klon), INTENT(IN) :: q2m, t2m
136
137	! Parametres de sortie
138	!****************************************************************************************
139	REAL, DIMENSION(klon), INTENT(OUT) :: evap, fluxsens, fluxlat, qsurf
140	REAL, DIMENSION(klon), INTENT(OUT) :: tsol_rad, tsurf_new
141	REAL, DIMENSION(klon), INTENT(OUT) :: alb1_new, alb2_new
142	REAL, DIMENSION(klon), INTENT(OUT) :: emis_new, z0_new, z0h_new
143
144	! Local
145	!****************************************************************************************
146	INTEGER :: ij, jj, igrid, ireal, index
147	INTEGER :: error
148	REAL, DIMENSION(klon) :: swdown_vrai
149	CHARACTER (len = 20) :: modname = 'surf_land_orchidee'
150	CHARACTER (len = 80) :: abort_message
151	LOGICAL,SAVE :: check = .FALSE.
152	!$OMP THREADPRIVATE(check)
153
154	! type de couplage dans sechiba
155	! character (len=10) :: coupling = 'implicit'
156	! drapeaux controlant les appels dans SECHIBA
157	! type(control_type), save :: control_in
158	! Preserved albedo
159	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: albedo_keep, zlev
160	!$OMP THREADPRIVATE(albedo_keep,zlev)
161	! coordonnees geographiques
162	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: lalo
163	!$OMP THREADPRIVATE(lalo)
164	! pts voisins
165	INTEGER,ALLOCATABLE, DIMENSION(:,:), SAVE :: neighbours
166	!$OMP THREADPRIVATE(neighbours)
167	! fractions continents
168	REAL,ALLOCATABLE, DIMENSION(:), SAVE :: contfrac
169	!$OMP THREADPRIVATE(contfrac)
170	! resolution de la grille
171	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: resolution
172	!$OMP THREADPRIVATE(resolution)
173
174	REAL, ALLOCATABLE, DIMENSION (:,:), SAVE :: lon_scat, lat_scat
175	!$OMP THREADPRIVATE(lon_scat,lat_scat)
176
177	LOGICAL, SAVE :: lrestart_read = .TRUE.
178	!$OMP THREADPRIVATE(lrestart_read)
179	LOGICAL, SAVE :: lrestart_write = .FALSE.
180	!$OMP THREADPRIVATE(lrestart_write)
181
182	REAL, DIMENSION(knon,2) :: albedo_out
183
184	! Pb de nomenclature
185	REAL, DIMENSION(klon) :: petA_orc, peqA_orc
186	REAL, DIMENSION(klon) :: petB_orc, peqB_orc
187	! Pb de correspondances de grilles
188	INTEGER, DIMENSION(:), SAVE, ALLOCATABLE :: ig, jg
189	!$OMP THREADPRIVATE(ig,jg)
190	INTEGER :: indi, indj
191	INTEGER, SAVE, ALLOCATABLE,DIMENSION(:) :: ktindex
192	!$OMP THREADPRIVATE(ktindex)
193
194	! Essai cdrag
195	REAL, DIMENSION(klon) :: cdrag
196	INTEGER,SAVE :: offset
197	!$OMP THREADPRIVATE(offset)
198
199	REAL, DIMENSION(klon_glo) :: rlon_g,rlat_g
200	INTEGER, SAVE :: orch_comm
201	!$OMP THREADPRIVATE(orch_comm)
202
203	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: coastalflow
204	!$OMP THREADPRIVATE(coastalflow)
205	REAL, ALLOCATABLE, DIMENSION(:), SAVE :: riverflow
206	!$OMP THREADPRIVATE(riverflow)
207
208	INTEGER :: orch_omp_rank
209	INTEGER :: orch_omp_size
210	!
211	! Fin definition
212	!****************************************************************************************
213
214	IF (check) WRITE(lunout,*)'Entree ', modname
215
216	! Initialisation
217
218	IF (debut) THEN
219	! Test of coherence between variable ok_veget and cpp key CPP_VEGET
220	#ifndef CPP_VEGET
221	abort_message='Pb de coherence: ok_veget = .true. mais CPP_VEGET = .false.'
222	CALL abort_physic(modname,abort_message,1)
223	#endif
224
225	CALL Init_surf_para(knon)
226	ALLOCATE(ktindex(knon))
227	IF ( .NOT. ALLOCATED(albedo_keep)) THEN
228	!ym ALLOCATE(albedo_keep(klon))
229	!ym bizarre que non alloué en knon precedement
230	ALLOCATE(albedo_keep(knon))
231	ALLOCATE(zlev(knon))
232	ENDIF
233	! Pb de correspondances de grilles
234	ALLOCATE(ig(klon))
235	ALLOCATE(jg(klon))
236	ig(1) = 1
237	jg(1) = 1
238	indi = 0
239	indj = 2
240	DO igrid = 2, klon - 1
241	indi = indi + 1
242	IF ( indi > nbp_lon) THEN
243	indi = 1
244	indj = indj + 1
245	ENDIF
246	ig(igrid) = indi
247	jg(igrid) = indj
248	ENDDO
249	ig(klon) = 1
250	jg(klon) = nbp_lat
251
252	IF ((.NOT. ALLOCATED(lalo))) THEN
253	ALLOCATE(lalo(knon,2), stat = error)
254	IF (error /= 0) THEN
255	abort_message='Pb allocation lalo'
256	CALL abort_physic(modname,abort_message,1)
257	ENDIF
258	ENDIF
259	IF ((.NOT. ALLOCATED(lon_scat))) THEN
260	ALLOCATE(lon_scat(nbp_lon,nbp_lat), stat = error)
261	IF (error /= 0) THEN
262	abort_message='Pb allocation lon_scat'
263	CALL abort_physic(modname,abort_message,1)
264	ENDIF
265	ENDIF
266	IF ((.NOT. ALLOCATED(lat_scat))) THEN
267	ALLOCATE(lat_scat(nbp_lon,nbp_lat), stat = error)
268	IF (error /= 0) THEN
269	abort_message='Pb allocation lat_scat'
270	CALL abort_physic(modname,abort_message,1)
271	ENDIF
272	ENDIF
273	lon_scat = 0.
274	lat_scat = 0.
275	DO igrid = 1, knon
276	index = knindex(igrid)
277	lalo(igrid,2) = rlon(index)
278	lalo(igrid,1) = rlat(index)
279	ENDDO
280
281
282
283	CALL Gather(rlon,rlon_g)
284	CALL Gather(rlat,rlat_g)
285
286	IF (is_mpi_root) THEN
287	index = 1
288	DO jj = 2, nbp_lat-1
289	DO ij = 1, nbp_lon
290	index = index + 1
291	lon_scat(ij,jj) = rlon_g(index)
292	lat_scat(ij,jj) = rlat_g(index)
293	ENDDO
294	ENDDO
295	lon_scat(:,1) = lon_scat(:,2)
296	lat_scat(:,1) = rlat_g(1)
297	lon_scat(:,nbp_lat) = lon_scat(:,2)
298	lat_scat(:,nbp_lat) = rlat_g(klon_glo)
299	ENDIF
300
301	CALL bcast(lon_scat)
302	CALL bcast(lat_scat)
303	!
304	! Allouer et initialiser le tableau des voisins et des fraction de continents
305	!
306	IF ( (.NOT.ALLOCATED(neighbours))) THEN
307	ALLOCATE(neighbours(knon,8), stat = error)
308	IF (error /= 0) THEN
309	abort_message='Pb allocation neighbours'
310	CALL abort_physic(modname,abort_message,1)
311	ENDIF
312	ENDIF
313	neighbours = -1.
314	IF (( .NOT. ALLOCATED(contfrac))) THEN
315	ALLOCATE(contfrac(knon), stat = error)
316	IF (error /= 0) THEN
317	abort_message='Pb allocation contfrac'
318	CALL abort_physic(modname,abort_message,1)
319	ENDIF
320	ENDIF
321
322	DO igrid = 1, knon
323	ireal = knindex(igrid)
324	contfrac(igrid) = pctsrf(ireal,is_ter)
325	ENDDO
326
327
328	CALL Init_neighbours(knon,neighbours,knindex,pctsrf(:,is_ter))
329
330	!
331	! Allocation et calcul resolutions
332	IF ( (.NOT.ALLOCATED(resolution))) THEN
333	ALLOCATE(resolution(knon,2), stat = error)
334	IF (error /= 0) THEN
335	abort_message='Pb allocation resolution'
336	CALL abort_physic(modname,abort_message,1)
337	ENDIF
338	ENDIF
339	DO igrid = 1, knon
340	ij = knindex(igrid)
341	resolution(igrid,1) = dx(ij)
342	resolution(igrid,2) = dy(ij)
343	ENDDO
344
345	ALLOCATE(coastalflow(klon), stat = error)
346	IF (error /= 0) THEN
347	abort_message='Pb allocation coastalflow'
348	CALL abort_physic(modname,abort_message,1)
349	ENDIF
350
351	ALLOCATE(riverflow(klon), stat = error)
352	IF (error /= 0) THEN
353	abort_message='Pb allocation riverflow'
354	CALL abort_physic(modname,abort_message,1)
355	ENDIF
356	!
357	! carbon_cycle_cpl not possible with this interface and version of ORHCHIDEE
358	!
359	IF (carbon_cycle_cpl) THEN
360	abort_message='carbon_cycle_cpl not yet possible with this interface of ORCHIDEE'
361	CALL abort_physic(modname,abort_message,1)
362	END IF
363
364	ENDIF ! (fin debut)
365
366
367	!
368	! Appel a la routine sols continentaux
369	!
370	IF (lafin) lrestart_write = .TRUE.
371	IF (check) WRITE(lunout,*)'lafin ',lafin,lrestart_write
372
373	petA_orc(1:knon) = petBcoef(1:knon) * dtime
374	petB_orc(1:knon) = petAcoef(1:knon)
375	peqA_orc(1:knon) = peqBcoef(1:knon) * dtime
376	peqB_orc(1:knon) = peqAcoef(1:knon)
377
378	cdrag = 0.
379	cdrag(1:knon) = tq_cdrag(1:knon)
380
381	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/287.05temp_air(1:knon))*9.80665)
382	! zlev(1:knon) = (100.plev(1:knon))/((ps(1:knon)/RDtemp_air(1:knon))*RG)
383	zlev(1:knon) = plev(1:knon)RDtemp_air(1:knon)/((ps(1:knon)100.0)RG)
384
385
386	! PF et PASB
387	! where(cdrag > 0.01)
388	! cdrag = 0.01
389	! endwhere
390	! write(,)'Cdrag = ',minval(cdrag),maxval(cdrag)
391
392
393	IF (debut) THEN
394	CALL Init_orchidee_index(knon,knindex,offset,ktindex)
395	CALL Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
396	CALL Init_synchro_omp
397
398	IF (knon > 0) THEN
399	#ifdef CPP_VEGET
400	CALL Init_intersurf(nbp_lon,nbp_lat,knon,ktindex,offset,orch_omp_size,orch_omp_rank,orch_comm)
401	#endif
402	ENDIF
403
404
405	IF (knon > 0) THEN
406
407	#ifdef CPP_VEGET
408	CALL intersurf_main (itime+itau_phy-1, nbp_lon, nbp_lat, knon, ktindex, dtime, &
409	lrestart_read, lrestart_write, lalo, &
410	contfrac, neighbours, resolution, date0, &
411	zlev, u1_lay, v1_lay, spechum, temp_air, epot_air, ccanopy, &
412	cdrag, petA_orc, peqA_orc, petB_orc, peqB_orc, &
413	precip_rain, precip_snow, lwdown, swnet, swdown, ps, &
414	evap, fluxsens, fluxlat, coastalflow, riverflow, &
415	tsol_rad, tsurf_new, qsurf, albedo_out, emis_new, z0_new, &
416	lon_scat, lat_scat, q2m, t2m, coszang=yrmu0)
417	#endif
418	ENDIF
419
420	CALL Synchro_omp
421
422	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
423
424	ENDIF
425
426
427	! swdown_vrai(1:knon) = swnet(1:knon)/(1. - albedo_keep(1:knon))
428	swdown_vrai(1:knon) = swdown(1:knon)
429
430	IF (knon > 0) THEN
431	#ifdef CPP_VEGET
432	CALL intersurf_main (itime+itau_phy, nbp_lon, nbp_lat, knon, ktindex, dtime, &
433	lrestart_read, lrestart_write, lalo, &
434	contfrac, neighbours, resolution, date0, &
435	zlev, u1_lay(1:knon), v1_lay(1:knon), spechum(1:knon), temp_air(1:knon), epot_air(1:knon), ccanopy(1:knon), &
436	cdrag(1:knon), petA_orc(1:knon), peqA_orc(1:knon), petB_orc(1:knon), peqB_orc(1:knon), &
437	precip_rain(1:knon), precip_snow(1:knon), lwdown(1:knon), swnet(1:knon), swdown_vrai(1:knon), ps(1:knon), &
438	evap(1:knon), fluxsens(1:knon), fluxlat(1:knon), coastalflow(1:knon), riverflow(1:knon), &
439	tsol_rad(1:knon), tsurf_new(1:knon), qsurf(1:knon), albedo_out(1:knon,:), emis_new(1:knon), z0_new(1:knon), &
440	lon_scat, lat_scat, q2m, t2m, coszang=yrmu0(1:knon))
441	#endif
442	ENDIF
443	z0h_new(:)=z0_new(:)
444
445	CALL Synchro_omp
446
447	albedo_keep(1:knon) = (albedo_out(1:knon,1)+albedo_out(1:knon,2))/2.
448
449	!* Send to coupler
450	!
451	IF (type_ocean=='couple') THEN
452	CALL cpl_send_land_fields(itime, knon, knindex, &
453	riverflow, coastalflow)
454	ENDIF
455
456	alb1_new(1:knon) = albedo_out(1:knon,1)
457	alb2_new(1:knon) = albedo_out(1:knon,2)
458
459	! Convention orchidee: positif vers le haut
460	fluxsens(1:knon) = -1. * fluxsens(1:knon)
461	fluxlat(1:knon) = -1. * fluxlat(1:knon)
462
463	! evap = -1. * evap
464
465	IF (debut) lrestart_read = .FALSE.
466
467	IF (debut) CALL Finalize_surf_para
468
469
470	END SUBROUTINE surf_land_orchidee
471	!
472	!****************************************************************************************
473	!
474	SUBROUTINE Init_orchidee_index(knon,knindex,offset,ktindex)
475	USE mod_surf_para
476	USE mod_grid_phy_lmdz
477
478	INTEGER,INTENT(IN) :: knon
479	INTEGER,INTENT(IN) :: knindex(klon)
480	INTEGER,INTENT(OUT) :: offset
481	INTEGER,INTENT(OUT) :: ktindex(klon)
482
483	INTEGER :: ktindex_glo(knon_glo)
484	INTEGER :: offset_para(0:omp_size*mpi_size-1)
485	INTEGER :: LastPoint
486	INTEGER :: task
487
488	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
489
490	CALL gather_surf(ktindex(1:knon),ktindex_glo)
491
492	IF (is_mpi_root .AND. is_omp_root) THEN
493	LastPoint=0
494	DO Task=0,mpi_size*omp_size-1
495	IF (knon_glo_para(Task)>0) THEN
496	offset_para(task)= LastPoint-MOD(LastPoint,nbp_lon)
497	LastPoint=ktindex_glo(knon_glo_end_para(task))
498	ENDIF
499	ENDDO
500	ENDIF
501
502	CALL bcast(offset_para)
503
504	offset=offset_para(omp_size*mpi_rank+omp_rank)
505
506	ktindex(1:knon)=ktindex(1:knon)-offset
507
508	END SUBROUTINE Init_orchidee_index
509
510	!
511	!*********************** *************************************************************
512	!
513
514	SUBROUTINE Get_orchidee_communicator(orch_comm,orch_omp_size,orch_omp_rank)
515	USE mod_surf_para
516
517	#ifdef CPP_MPI
518	INCLUDE 'mpif.h'
519	#endif
520
521	INTEGER,INTENT(OUT) :: orch_comm
522	INTEGER,INTENT(OUT) :: orch_omp_size
523	INTEGER,INTENT(OUT) :: orch_omp_rank
524	INTEGER :: color
525	INTEGER :: i,ierr
526	!
527	! End definition
528	!****************************************************************************************
529
530
531	IF (is_omp_root) THEN
532
533	IF (knon_mpi==0) THEN
534	color = 0
535	ELSE
536	color = 1
537	ENDIF
538
539	#ifdef CPP_MPI
540	CALL MPI_COMM_SPLIT(COMM_LMDZ_PHY,color,mpi_rank,orch_comm,ierr)
541	#endif
542
543	ENDIF
544	CALL bcast_omp(orch_comm)
545
546	IF (knon_mpi /= 0) THEN
547	orch_omp_size=0
548	DO i=0,omp_size-1
549	IF (knon_omp_para(i) /=0) THEN
550	orch_omp_size=orch_omp_size+1
551	IF (i==omp_rank) orch_omp_rank=orch_omp_size-1
552	ENDIF
553	ENDDO
554	ENDIF
555
556
557	END SUBROUTINE Get_orchidee_communicator
558	!
559	!****************************************************************************************
560	!
561
562	SUBROUTINE Init_neighbours(knon,neighbours,knindex,pctsrf)
563	USE mod_grid_phy_lmdz
564	USE mod_surf_para
565	USE indice_sol_mod
566
567	#ifdef CPP_MPI
568	INCLUDE 'mpif.h'
569	#endif
570
571	! Input arguments
572	!****************************************************************************************
573	INTEGER, INTENT(IN) :: knon
574	INTEGER, DIMENSION(klon), INTENT(IN) :: knindex
575	REAL, DIMENSION(klon), INTENT(IN) :: pctsrf
576
577	! Output arguments
578	!****************************************************************************************
579	INTEGER, DIMENSION(knon,8), INTENT(OUT) :: neighbours
580
581	! Local variables
582	!****************************************************************************************
583	INTEGER :: i, igrid, jj, ij, iglob
584	INTEGER :: ierr, ireal, index
585	INTEGER, DIMENSION(8,3) :: off_ini
586	INTEGER, DIMENSION(8) :: offset
587	INTEGER, DIMENSION(nbp_lon,nbp_lat) :: correspond
588	INTEGER, DIMENSION(knon_glo) :: ktindex_glo
589	INTEGER, DIMENSION(knon_glo,8) :: neighbours_glo
590	REAL, DIMENSION(klon_glo) :: pctsrf_glo
591	INTEGER :: ktindex(klon)
592	!
593	! End definition
594	!****************************************************************************************
595
596	ktindex(1:knon)=knindex(1:knon)+(klon_mpi_begin-1)+(klon_omp_begin-1)+nbp_lon-1
597
598	CALL gather_surf(ktindex(1:knon),ktindex_glo)
599	CALL gather(pctsrf,pctsrf_glo)
600
601	IF (is_mpi_root .AND. is_omp_root) THEN
602	neighbours_glo(:,:)=-1
603	! Initialisation des offset
604	!
605	! offset bord ouest
606	off_ini(1,1) = - nbp_lon ; off_ini(2,1) = - nbp_lon + 1 ; off_ini(3,1) = 1
607	off_ini(4,1) = nbp_lon + 1 ; off_ini(5,1) = nbp_lon ; off_ini(6,1) = 2 * nbp_lon - 1
608	off_ini(7,1) = nbp_lon -1 ; off_ini(8,1) = - 1
609	! offset point normal
610	off_ini(1,2) = - nbp_lon ; off_ini(2,2) = - nbp_lon + 1 ; off_ini(3,2) = 1
611	off_ini(4,2) = nbp_lon + 1 ; off_ini(5,2) = nbp_lon ; off_ini(6,2) = nbp_lon - 1
612	off_ini(7,2) = -1 ; off_ini(8,2) = - nbp_lon - 1
613	! offset bord est
614	off_ini(1,3) = - nbp_lon ; off_ini(2,3) = - 2 * nbp_lon + 1 ; off_ini(3,3) = - nbp_lon + 1
615	off_ini(4,3) = 1 ; off_ini(5,3) = nbp_lon ; off_ini(6,3) = nbp_lon - 1
616	off_ini(7,3) = -1 ; off_ini(8,3) = - nbp_lon - 1
617	!
618	!
619	! Attention aux poles
620	!
621	DO igrid = 1, knon_glo
622	index = ktindex_glo(igrid)
623	jj = INT((index - 1)/nbp_lon) + 1
624	ij = index - (jj - 1) * nbp_lon
625	correspond(ij,jj) = igrid
626	ENDDO
627	!sonia : Les mailles des voisines doivent etre toutes egales (pour couplage orchidee)
628	IF (knon_glo == 1) THEN
629	igrid = 1
630	DO i = 1,8
631	neighbours_glo(igrid, i) = igrid
632	ENDDO
633	ELSE
634	print*,'sonia : knon_glo,ij,jj', knon_glo, ij,jj
635
636	DO igrid = 1, knon_glo
637	iglob = ktindex_glo(igrid)
638
639	IF (MOD(iglob, nbp_lon) == 1) THEN
640	offset = off_ini(:,1)
641	ELSE IF(MOD(iglob, nbp_lon) == 0) THEN
642	offset = off_ini(:,3)
643	ELSE
644	offset = off_ini(:,2)
645	ENDIF
646
647	DO i = 1, 8
648	index = iglob + offset(i)
649	ireal = (MIN(MAX(1, index - nbp_lon + 1), klon_glo))
650	IF (pctsrf_glo(ireal) > EPSFRA) THEN
651	jj = INT((index - 1)/nbp_lon) + 1
652	ij = index - (jj - 1) * nbp_lon
653	neighbours_glo(igrid, i) = correspond(ij, jj)
654	ENDIF
655	ENDDO
656	ENDDO
657	ENDIF !fin knon_glo == 1
658
659	ENDIF
660
661	DO i = 1, 8
662	CALL scatter_surf(neighbours_glo(:,i),neighbours(1:knon,i))
663	ENDDO
664	END SUBROUTINE Init_neighbours
665
666	!
667	!****************************************************************************************
668	!
669	#endif
670	END MODULE surf_land_orchidee_noz0h_mod

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