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source: codes/icosagcm/trunk/src/geometry.f90 @ 427

Last change on this file since 427 was 427, checked in by dubos, 8 years ago
New kinetic energy (diagnostic)
File size: 22.3 KB

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1	MODULE geometry
2	USE field_mod
3	IMPLICIT NONE
4
5	TYPE t_geometry
6	TYPE(t_field),POINTER :: centroid(:)
7	TYPE(t_field),POINTER :: xyz_i(:)
8	TYPE(t_field),POINTER :: xyz_e(:)
9	TYPE(t_field),POINTER :: xyz_v(:)
10	TYPE(t_field),POINTER :: lon_i(:)
11	TYPE(t_field),POINTER :: lon_e(:)
12	TYPE(t_field),POINTER :: lat_i(:)
13	TYPE(t_field),POINTER :: lat_e(:)
14	TYPE(t_field),POINTER :: ep_e(:)
15	TYPE(t_field),POINTER :: et_e(:)
16	TYPE(t_field),POINTER :: elon_i(:)
17	TYPE(t_field),POINTER :: elat_i(:)
18	TYPE(t_field),POINTER :: elon_e(:)
19	TYPE(t_field),POINTER :: elat_e(:)
20	TYPE(t_field),POINTER :: Ai(:)
21	TYPE(t_field),POINTER :: Av(:)
22	TYPE(t_field),POINTER :: de(:)
23	TYPE(t_field),POINTER :: le(:)
24	TYPE(t_field),POINTER :: le_de(:) ! le/de, 0. if de=0.
25	TYPE(t_field),POINTER :: Riv(:)
26	TYPE(t_field),POINTER :: S1(:)
27	TYPE(t_field),POINTER :: S2(:)
28	TYPE(t_field),POINTER :: Riv2(:)
29	TYPE(t_field),POINTER :: ne(:)
30	TYPE(t_field),POINTER :: Wee(:)
31	TYPE(t_field),POINTER :: bi(:)
32	TYPE(t_field),POINTER :: fv(:)
33	END TYPE t_geometry
34
35	TYPE(t_geometry),SAVE,TARGET :: geom
36
37
38	REAL(rstd),POINTER :: Ai(:) ! area of a cell
39	!$OMP THREADPRIVATE(Ai)
40	REAL(rstd),POINTER :: centroid(:,:) ! coordinate of the centroid of the cell
41	!$OMP THREADPRIVATE(centroid)
42	REAL(rstd),POINTER :: xyz_i(:,:) ! coordinate of the center of the cell (voronoi)
43	!$OMP THREADPRIVATE(xyz_i)
44	REAL(rstd),POINTER :: xyz_e(:,:) ! coordinate of a wind point on the cell on a edge
45	!$OMP THREADPRIVATE(xyz_e)
46	REAL(rstd),POINTER :: xyz_v(:,:) ! coordinate of a vertex (center of the dual mesh)
47	!$OMP THREADPRIVATE(xyz_v)
48	REAL(rstd),POINTER :: lon_i(:) ! longitude of the center of the cell (voronoi)
49	!$OMP THREADPRIVATE(lon_i)
50	REAL(rstd),POINTER :: lon_e(:) ! longitude of a wind point on the cell on a edge
51	!$OMP THREADPRIVATE(lon_e)
52	REAL(rstd),POINTER :: lat_i(:) ! latitude of the center of the cell (voronoi)
53	!$OMP THREADPRIVATE(lat_i)
54	REAL(rstd),POINTER :: lat_e(:) ! latitude of a wind point on the cell on a edge
55	!$OMP THREADPRIVATE(lat_e)
56	REAL(rstd),POINTER :: ep_e(:,:) ! perpendicular unit vector of a edge (outsider)
57	!$OMP THREADPRIVATE(ep_e)
58	REAL(rstd),POINTER :: et_e(:,:) ! tangeantial unit vector of a edge
59	!$OMP THREADPRIVATE(et_e)
60	REAL(rstd),POINTER :: elon_i(:,:) ! unit longitude vector on the center
61	!$OMP THREADPRIVATE(elon_i)
62	REAL(rstd),POINTER :: elat_i(:,:) ! unit latitude vector on the center
63	!$OMP THREADPRIVATE(elat_i)
64	REAL(rstd),POINTER :: elon_e(:,:) ! unit longitude vector on a wind point
65	!$OMP THREADPRIVATE(elon_e)
66	REAL(rstd),POINTER :: elat_e(:,:) ! unit latitude vector on a wind point
67	!$OMP THREADPRIVATE(elat_e)
68	REAL(rstd),POINTER :: Av(:) ! area of dual mesk cell
69	!$OMP THREADPRIVATE(Av)
70	REAL(rstd),POINTER :: de(:) ! distance from a neighbour == lenght of an edge of the dual mesh
71	!$OMP THREADPRIVATE(de)
72	REAL(rstd),POINTER :: le(:) ! lenght of a edge
73	!$OMP THREADPRIVATE(le)
74	REAL(rstd),POINTER :: le_de(:) ! le/de
75	!$OMP THREADPRIVATE(le_de)
76	REAL(rstd),POINTER :: S1(:,:) ! area of sub-triangle
77	!$OMP THREADPRIVATE(S1)
78	REAL(rstd),POINTER :: S2(:,:) ! area of sub-tirangle
79	!$OMP THREADPRIVATE(S2)
80	REAL(rstd),POINTER :: Riv(:,:) ! weight
81	!$OMP THREADPRIVATE(Riv)
82	REAL(rstd),POINTER :: Riv2(:,:) ! weight
83	!$OMP THREADPRIVATE(Riv2)
84	INTEGER,POINTER :: ne(:,:) ! convention for the way on the normal wind on an edge
85	!$OMP THREADPRIVATE(ne)
86	REAL(rstd),POINTER :: Wee(:,:,:) ! weight
87	!$OMP THREADPRIVATE(Wee)
88	REAL(rstd),POINTER :: bi(:) ! orographie
89	!$OMP THREADPRIVATE(bi)
90	REAL(rstd),POINTER :: fv(:) ! coriolis (evaluted on a vertex)
91	!$OMP THREADPRIVATE(fv)
92
93
94	INTEGER, PARAMETER :: ne_right=1
95	INTEGER, PARAMETER :: ne_rup=-1
96	INTEGER, PARAMETER :: ne_lup=1
97	INTEGER, PARAMETER :: ne_left=-1
98	INTEGER, PARAMETER :: ne_ldown=1
99	INTEGER, PARAMETER :: ne_rdown=-1
100
101	CONTAINS
102
103	SUBROUTINE allocate_geometry
104	USE field_mod
105	IMPLICIT NONE
106
107	CALL allocate_field(geom%Ai,field_t,type_real,name='Ai')
108
109	CALL allocate_field(geom%xyz_i,field_t,type_real,3)
110	CALL allocate_field(geom%lon_i,field_t,type_real)
111	CALL allocate_field(geom%lat_i,field_t,type_real)
112	CALL allocate_field(geom%elon_i,field_t,type_real,3)
113	CALL allocate_field(geom%elat_i,field_t,type_real,3)
114	CALL allocate_field(geom%centroid,field_t,type_real,3)
115
116	CALL allocate_field(geom%xyz_e,field_u,type_real,3)
117	CALL allocate_field(geom%lon_e,field_u,type_real)
118	CALL allocate_field(geom%lat_e,field_u,type_real)
119	CALL allocate_field(geom%elon_e,field_u,type_real,3)
120	CALL allocate_field(geom%elat_e,field_u,type_real,3)
121	CALL allocate_field(geom%ep_e,field_u,type_real,3)
122	CALL allocate_field(geom%et_e,field_u,type_real,3)
123
124	CALL allocate_field(geom%xyz_v,field_z,type_real,3)
125	CALL allocate_field(geom%de,field_u,type_real)
126	CALL allocate_field(geom%le,field_u,type_real)
127	CALL allocate_field(geom%le_de,field_u,type_real)
128	CALL allocate_field(geom%bi,field_t,type_real)
129	CALL allocate_field(geom%Av,field_z,type_real)
130	CALL allocate_field(geom%S1,field_t,type_real,6)
131	CALL allocate_field(geom%S2,field_t,type_real,6)
132	CALL allocate_field(geom%Riv,field_t,type_real,6)
133	CALL allocate_field(geom%Riv2,field_t,type_real,6)
134	CALL allocate_field(geom%ne,field_t,type_integer,6)
135	CALL allocate_field(geom%Wee,field_u,type_real,5,2)
136	CALL allocate_field(geom%bi,field_t,type_real)
137	CALL allocate_field(geom%fv,field_z,type_real)
138
139	END SUBROUTINE allocate_geometry
140
141
142	SUBROUTINE swap_geometry(ind)
143	USE field_mod
144	IMPLICIT NONE
145	INTEGER,INTENT(IN) :: ind
146	!!$OMP MASTER
147	Ai=geom%Ai(ind)
148	xyz_i=geom%xyz_i(ind)
149	centroid=geom%centroid(ind)
150	xyz_e=geom%xyz_e(ind)
151	ep_e=geom%ep_e(ind)
152	et_e=geom%et_e(ind)
153	lon_i=geom%lon_i(ind)
154	lat_i=geom%lat_i(ind)
155	lon_e=geom%lon_e(ind)
156	lat_e=geom%lat_e(ind)
157	elon_i=geom%elon_i(ind)
158	elat_i=geom%elat_i(ind)
159	elon_e=geom%elon_e(ind)
160	elat_e=geom%elat_e(ind)
161	xyz_v=geom%xyz_v(ind)
162	de=geom%de(ind)
163	le=geom%le(ind)
164	le_de=geom%le_de(ind)
165	Av=geom%Av(ind)
166	S1=geom%S1(ind)
167	S2=geom%S2(ind)
168	Riv=geom%Riv(ind)
169	Riv2=geom%Riv2(ind)
170	ne=geom%ne(ind)
171	Wee=geom%Wee(ind)
172	bi=geom%bi(ind)
173	fv=geom%fv(ind)
174	!!$OMP END MASTER
175	!!$OMP BARRIER
176	END SUBROUTINE swap_geometry
177
178	SUBROUTINE update_circumcenters
179	USE domain_mod
180	USE dimensions
181	USE spherical_geom_mod
182	USE vector
183	USE transfert_mod
184	USE omp_para
185
186	IMPLICIT NONE
187	REAL(rstd) :: x1(3),x2(3)
188	REAL(rstd) :: vect(3,6)
189	REAL(rstd) :: centr(3)
190	INTEGER :: ind,i,j,n,k
191	TYPE(t_message),SAVE :: message0, message1
192	LOGICAL, SAVE :: first=.TRUE.
193	!$OMP THREADPRIVATE(first)
194
195	IF (first) THEN
196	CALL init_message(geom%xyz_i, req_i0 ,message0)
197	CALL init_message(geom%xyz_i, req_i1 ,message1)
198	first=.FALSE.
199	ENDIF
200
201	CALL transfert_message(geom%xyz_i,message0)
202	CALL transfert_message(geom%xyz_i,message1)
203
204	DO ind=1,ndomain
205	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master) CYCLE
206	CALL swap_dimensions(ind)
207	CALL swap_geometry(ind)
208	DO j=jj_begin,jj_end
209	DO i=ii_begin,ii_end
210	n=(j-1)*iim+i
211	DO k=0,5
212	x1(:) = xyz_i(n+t_pos(k+1),:)
213	x2(:) = xyz_i(n+t_pos(MOD(k+1,6)+1),:)
214	if (norm(x1-x2)<1e-16) x2(:) = xyz_i(n+t_pos(MOD(k+2,6)+1),:)
215	CALL circumcenter(xyz_i(n,:), x1, x2, xyz_v(n+z_pos(k+1),:))
216	ENDDO
217	ENDDO
218	ENDDO
219	ENDDO
220
221	END SUBROUTINE update_circumcenters
222
223	SUBROUTINE remap_schmidt_loc
224	USE spherical_geom_mod
225	USE getin_mod
226	USE omp_para
227	USE domain_mod
228	USE dimensions
229	IMPLICIT NONE
230	INTEGER :: ind,i,j,n
231	REAL(rstd) :: schmidt_factor, schmidt_lon, schmidt_lat
232
233	! Schmidt transform parameters
234	schmidt_factor = 1.
235	CALL getin('schmidt_factor', schmidt_factor)
236	schmidt_factor = schmidt_factor**2.
237
238	schmidt_lon = 0.
239	CALL getin('schmidt_lon', schmidt_lon)
240	schmidt_lon = schmidt_lon * pi/180.
241
242	schmidt_lat = 45.
243	CALL getin('schmidt_lat', schmidt_lat)
244	schmidt_lat = schmidt_lat * pi/180.
245
246	DO ind=1,ndomain
247	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master) CYCLE
248	CALL swap_dimensions(ind)
249	CALL swap_geometry(ind)
250	DO j=jj_begin,jj_end
251	DO i=ii_begin,ii_end
252	n=(j-1)*iim+i
253	CALL schmidt_transform(xyz_i(n,:), schmidt_factor, schmidt_lon, schmidt_lat)
254	ENDDO
255	ENDDO
256	ENDDO
257	END SUBROUTINE remap_schmidt_loc
258
259	SUBROUTINE optimize_geometry
260	USE metric
261	USE spherical_geom_mod
262	USE domain_mod
263	USE dimensions
264	USE transfert_mod
265	USE vector
266	USE getin_mod
267	USE omp_para
268	IMPLICIT NONE
269	INTEGER :: nb_it=0
270	TYPE(t_domain),POINTER :: d
271	INTEGER :: ind,it,i,j,n,k
272	REAL(rstd) :: x1(3),x2(3)
273	REAL(rstd) :: vect(3,6)
274	REAL(rstd) :: centr(3)
275	REAL(rstd) :: sum
276	LOGICAL :: check
277
278
279	CALL getin('optim_it',nb_it)
280
281	DO ind=1,ndomain
282	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master) CYCLE
283	d=>domain(ind)
284	CALL swap_dimensions(ind)
285	CALL swap_geometry(ind)
286	xyz_i(:,1) = 0 ; xyz_i(:,2) = 0 ; xyz_i(:,3) = 1
287
288	DO j=jj_begin,jj_end
289	DO i=ii_begin,ii_end
290	n=(j-1)*iim+i
291	xyz_i(n,:)=d%xyz(:,i,j)
292	ENDDO
293	ENDDO
294	ENDDO
295
296	CALL update_circumcenters
297
298	DO ind=1,ndomain
299	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master ) CYCLE
300	d=>domain(ind)
301	CALL swap_dimensions(ind)
302	CALL swap_geometry(ind)
303	DO j=jj_begin,jj_end
304	DO i=ii_begin,ii_end
305	n=(j-1)*iim+i
306	DO k=0,5
307	x1(:) = xyz_v(n+z_pos(k+1),:)
308	x2(:) = d%vertex(:,k,i,j)
309	IF (norm(x1-x2)>1e-10) THEN
310	PRINT*,"vertex diff ",ind,i,j,k
311	PRINT*,x1
312	PRINT*,x2
313	ENDIF
314	ENDDO
315	ENDDO
316	ENDDO
317	ENDDO
318
319
320	DO it=1,nb_it
321	IF (MOD(it,100)==0) THEN
322	check=is_master
323	ELSE
324	check=.FALSE.
325	ENDIF
326
327	sum=0
328	DO ind=1,ndomain
329	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master ) CYCLE
330	CALL swap_dimensions(ind)
331	CALL swap_geometry(ind)
332	DO j=jj_begin,jj_end
333	DO i=ii_begin,ii_end
334	n=(j-1)*iim+i
335	vect(:,1)=xyz_v(n+z_rup,:)
336	vect(:,2)=xyz_v(n+z_up,:)
337	vect(:,3)=xyz_v(n+z_lup,:)
338	vect(:,4)=xyz_v(n+z_ldown,:)
339	vect(:,5)=xyz_v(n+z_down,:)
340	vect(:,6)=xyz_v(n+z_rdown,:)
341	CALL compute_centroid(vect,6,centr)
342	IF (check) THEN
343	sum=MAX(sum,norm(xyz_i(n,:)-centr(:)))
344	ENDIF
345	xyz_i(n,:)=centr(:)
346	ENDDO
347	ENDDO
348
349	ENDDO
350
351	IF (check) PRINT *,"it = ",it," diff centroid circumcenter ",sum
352
353	CALL update_circumcenters
354
355	ENDDO
356
357	END SUBROUTINE optimize_geometry
358
359	SUBROUTINE update_domain
360	! copy position of generators and vertices back into domain(:)%xyz/vertex
361	! so that XIOS/create_header_gen gets the right values
362	USE omp_para
363	USE dimensions
364	USE domain_mod
365	USE transfert_mpi_mod
366
367	INTEGER :: ind,i,j,k,n
368	TYPE(t_domain),POINTER :: d
369	TYPE(t_field),POINTER :: xyz_glo(:), xyz_loc(:), vertex_glo(:), vertex_loc(:)
370	REAL(rstd), POINTER :: xyz(:,:), vertex(:,:)
371
372	CALL allocate_field(xyz_loc, field_t, type_real, 3)
373	CALL allocate_field(vertex_loc, field_z, type_real, 3)
374
375	DO ind=1,ndomain
376	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master ) CYCLE
377	CALL swap_dimensions(ind)
378	CALL swap_geometry(ind)
379	xyz = xyz_loc(ind)
380	xyz(:,:) = xyz_i(:,:)
381	vertex = vertex_loc(ind)
382	vertex(:,:) = xyz_v(:,:)
383	END DO
384
385	CALL allocate_field_glo(xyz_glo, field_t, type_real, 3)
386	CALL allocate_field_glo(vertex_glo, field_z, type_real, 3)
387	CALL gather_field(xyz_loc, xyz_glo)
388	CALL bcast_field(xyz_glo)
389	CALL gather_field(vertex_loc, vertex_glo)
390	CALL bcast_field(vertex_glo)
391	CALL deallocate_field(vertex_loc)
392	CALL deallocate_field(xyz_loc)
393
394	DO ind=1,ndomain_glo
395	d=>domain_glo(ind)
396	xyz = xyz_glo(ind)
397	vertex = vertex_glo(ind)
398	DO j=d%jj_begin,d%jj_end
399	DO i=d%ii_begin,d%ii_end
400	n=(j-1)*d%iim+i
401	d%xyz(:,i,j)=xyz(n,:)
402	DO k=0,5
403	d%vertex(:,k,i,j) = vertex(n+d%z_pos(k+1),:)
404	END DO
405	END DO
406	END DO
407	END DO
408
409	CALL deallocate_field_glo(vertex_glo)
410	CALL deallocate_field_glo(xyz_glo)
411
412	END SUBROUTINE update_domain
413
414	SUBROUTINE set_geometry
415	USE metric
416	USE vector
417	USE spherical_geom_mod
418	USE domain_mod
419	USE dimensions
420	USE transfert_mod
421	USE getin_mod
422	USE omp_para
423	IMPLICIT NONE
424
425	REAL(rstd) :: surf(6)
426	REAL(rstd) :: surf_v(6)
427	REAL(rstd) :: vect(3,6)
428	REAL(rstd) :: centr(3)
429	REAL(rstd) :: vet(3),vep(3), vertex(3)
430	INTEGER :: ind,i,j,k,n
431	TYPE(t_domain),POINTER :: d
432	REAL(rstd) :: S12
433	REAL(rstd) :: w(6)
434	REAL(rstd) :: lon,lat
435	INTEGER :: ii_glo,jj_glo
436	REAL(rstd) :: S
437
438
439	CALL optimize_geometry
440	CALL remap_schmidt_loc
441	CALL update_circumcenters
442	! copy position of generators and vertices back into domain(:)%xyz/vertex
443	! so that XIOS gets the right values
444	CALL update_domain
445
446	DO ind=1,ndomain
447	IF (.NOT. assigned_domain(ind) .OR. .NOT. is_omp_level_master ) CYCLE
448	d=>domain(ind)
449	CALL swap_dimensions(ind)
450	CALL swap_geometry(ind)
451	lon_i(:)=0 ; lat_i(:)=0
452	lon_e(:)=0 ; lat_e(:)=0
453	DO j=jj_begin-1,jj_end+1
454	DO i=ii_begin-1,ii_end+1
455	n=(j-1)*iim+i
456
457	DO k=0,5
458	ne(n,k+1)=d%ne(k,i,j)
459	ENDDO
460
461	vect(:,1)=xyz_v(n+z_rup,:)
462	vect(:,2)=xyz_v(n+z_up,:)
463	vect(:,3)=xyz_v(n+z_lup,:)
464	vect(:,4)=xyz_v(n+z_ldown,:)
465	vect(:,5)=xyz_v(n+z_down,:)
466	vect(:,6)=xyz_v(n+z_rdown,:)
467	CALL compute_centroid(vect,6,centr)
468	centroid(n,:)=centr(:)
469
470
471	CALL xyz2lonlat(xyz_v(n+z_up,:),lon,lat)
472	fv(n+z_up)=2sin(lat)omega
473	CALL xyz2lonlat(xyz_v(n+z_down,:),lon,lat)
474	fv(n+z_down)=2sin(lat)omega
475
476	bi(n)=0.
477
478	CALL dist_cart(xyz_i(n,:),xyz_i(n+t_right,:),de(n+u_right))
479	CALL dist_cart(xyz_i(n,:),xyz_i(n+t_lup,:),de(n+u_lup))
480	CALL dist_cart(xyz_i(n,:),xyz_i(n+t_ldown,:),de(n+u_ldown))
481
482	CALL div_arc_bis(xyz_i(n,:),xyz_i(n+t_right,:),0.5,xyz_e(n+u_right,:))
483	CALL div_arc_bis(xyz_i(n,:),xyz_i(n+t_lup,:),0.5,xyz_e(n+u_lup,:))
484	CALL div_arc_bis(xyz_i(n,:),xyz_i(n+t_ldown,:),0.5,xyz_e(n+u_ldown,:))
485
486	CALL dist_cart(xyz_v(n+z_rdown,:), xyz_v(n+z_rup,:),le(n+u_right))
487	CALL dist_cart(xyz_v(n+z_up,:), xyz_v(n+z_lup,:),le(n+u_lup))
488	CALL dist_cart(xyz_v(n+z_ldown,:), xyz_v(n+z_down,:),le(n+u_ldown))
489
490	le_de(n+u_right)=le(n+u_right)/de(n+u_right) ! NaN possible but should be harmless
491	le_de(n+u_lup) =le(n+u_lup) /de(n+u_lup)
492	le_de(n+u_ldown)=le(n+u_ldown)/de(n+u_ldown)
493
494	Ai(n)=0
495	DO k=0,5
496	CALL surf_triangle(xyz_i(n,:),xyz_i(n+t_pos(k+1),:),xyz_i(n+t_pos(MOD((k+1+6),6)+1),:),surf_v(k+1))
497	CALL surf_triangle(xyz_i(n,:),xyz_v(n+z_pos(MOD((k-1+6),6)+1),:),xyz_v(n+z_pos(k+1),:),surf(k+1))
498	Ai(n)=Ai(n)+surf(k+1)
499	IF (i==ii_end .AND. j==jj_begin) THEN
500	IF (Ai(n)<1e20) THEN
501	ELSE
502	PRINT *,"PB !!",Ai(n),k,surf(k+1)
503	PRINT*,xyz_i(n,:),xyz_v(n+z_pos(MOD((k-1+6),6)+1),:),xyz_v(n+z_pos(k+1),:)
504	ENDIF
505	ENDIF
506	ENDDO
507
508	! Sign convention : Ringler et al., JCP 2010, eq. 21 p. 3071
509	! Normal component is along outgoing normal vector if ne=1
510
511	CALL cross_product2(xyz_v(n+z_rdown,:),xyz_v(n+z_rup,:),vep)
512	IF (norm(vep)>1e-30) THEN
513	vep(:)=vep(:)/norm(vep) ! Inward normal vector
514	CALL cross_product2(vep,xyz_e(n+u_right,:),vet) ! Counter-clockwise tangent vector
515	vet(:)=vet(:)/norm(vet)
516	ep_e(n+u_right,:)=-vep(:)*ne(n,right)
517	et_e(n+u_right,:)=vet(:)*ne(n,right)
518	ENDIF
519
520	CALL cross_product2(xyz_v(n+z_up,:),xyz_v(n+z_lup,:),vep)
521	IF (norm(vep)>1e-30) THEN
522	vep(:)=vep(:)/norm(vep)
523	CALL cross_product2(vep,xyz_e(n+u_lup,:),vet)
524	vet(:)=vet(:)/norm(vet)
525	ep_e(n+u_lup,:)=-vep(:)*ne(n,lup)
526	et_e(n+u_lup,:)=vet(:)*ne(n,lup)
527	ENDIF
528
529	CALL cross_product2(xyz_v(n+z_ldown,:),xyz_v(n+z_down,:),vep)
530	IF (norm(vep)>1e-30) THEN
531	vep(:)=vep(:)/norm(vep)
532	CALL cross_product2(vep,xyz_e(n+u_ldown,:),vet)
533	vet(:)=vet(:)/norm(vet)
534	ep_e(n+u_ldown,:)=-vep(:)*ne(n,ldown)
535	et_e(n+u_ldown,:)=vet(:)*ne(n,ldown)
536	ENDIF
537
538	CALL xyz2lonlat(xyz_i(n,:),lon,lat)
539	lon_i(n)=lon
540	lat_i(n)=lat
541	elon_i(n,1) = -sin(lon)
542	elon_i(n,2) = cos(lon)
543	elon_i(n,3) = 0
544	elat_i(n,1) = -cos(lon)*sin(lat)
545	elat_i(n,2) = -sin(lon)*sin(lat)
546	elat_i(n,3) = cos(lat)
547
548
549	CALL xyz2lonlat(xyz_e(n+u_right,:),lon,lat)
550	lon_e(n+u_right)=lon
551	lat_e(n+u_right)=lat
552	elon_e(n+u_right,1) = -sin(lon)
553	elon_e(n+u_right,2) = cos(lon)
554	elon_e(n+u_right,3) = 0
555	elat_e(n+u_right,1) = -cos(lon)*sin(lat)
556	elat_e(n+u_right,2) = -sin(lon)*sin(lat)
557	elat_e(n+u_right,3) = cos(lat)
558
559	CALL xyz2lonlat(xyz_e(n+u_lup,:),lon,lat)
560	lon_e(n+u_lup)=lon
561	lat_e(n+u_lup)=lat
562	elon_e(n+u_lup,1) = -sin(lon)
563	elon_e(n+u_lup,2) = cos(lon)
564	elon_e(n+u_lup,3) = 0
565	elat_e(n+u_lup,1) = -cos(lon)*sin(lat)
566	elat_e(n+u_lup,2) = -sin(lon)*sin(lat)
567	elat_e(n+u_lup,3) = cos(lat)
568
569	CALL xyz2lonlat(xyz_e(n+u_ldown,:),lon,lat)
570	lon_e(n+u_ldown)=lon
571	lat_e(n+u_ldown)=lat
572	elon_e(n+u_ldown,1) = -sin(lon)
573	elon_e(n+u_ldown,2) = cos(lon)
574	elon_e(n+u_ldown,3) = 0
575	elat_e(n+u_ldown,1) = -cos(lon)*sin(lat)
576	elat_e(n+u_ldown,2) = -sin(lon)*sin(lat)
577	elat_e(n+u_ldown,3) = cos(lat)
578
579
580	DO k=0,5
581	CALL surf_triangle(xyz_i(n,:), xyz_v(n+z_pos(k+1),:), xyz_i(n+t_pos(k+1),:),S1(n,k+1) )
582	CALL surf_triangle(xyz_i(n,:), xyz_v(n+z_pos(k+1),:), xyz_i(n+t_pos(MOD(k+1+6,6)+1),:),S2(n,k+1) )
583	S12 = .5*(S1(n,k+1)+S2(n,k+1))
584	Riv(n,k+1)=S12/Ai(n)
585	Riv2(n,k+1)=S12/surf_v(k+1)
586	ENDDO
587
588	DO k=1,6
589	IF (ABS(surf_v(k))<1e-30) THEN
590	Riv(n,k)=0.
591	ENDIF
592	ENDDO
593
594	Av(n+z_up)=surf_v(vup)+1e-100
595	Av(n+z_down)=surf_v(vdown)+1e-100
596
597	ENDDO
598	ENDDO
599
600	DO j=jj_begin,jj_end
601	DO i=ii_begin,ii_end
602	n=(j-1)*iim+i
603
604	CALL compute_wee(n,right,w)
605	Wee(n+u_right,:,1)=w(1:5)
606
607	CALL compute_wee(n+t_right,left,w)
608	Wee(n+u_right,:,2)=w(1:5)
609
610
611	CALL compute_wee(n,lup,w)
612	Wee(n+u_lup,:,1)=w(1:5)
613
614	CALL compute_wee(n+t_lup,rdown,w)
615	Wee(n+u_lup,:,2)=w(1:5)
616
617
618	CALL compute_wee(n,ldown,w)
619	Wee(n+u_ldown,:,1)=w(1:5)
620
621	CALL compute_wee(n+t_ldown,rup,w)
622	Wee(n+u_ldown,:,2)=w(1:5)
623
624	ENDDO
625	ENDDO
626
627	DO j=jj_begin,jj_end
628	DO i=ii_begin,ii_end
629	n=(j-1)*iim+i
630	ii_glo=d%ii_begin_glo-d%ii_begin+i
631	jj_glo=d%jj_begin_glo-d%jj_begin+j
632
633	IF (ii_glo==1 .AND. jj_glo==1) THEN
634	le(n+u_ldown)=0
635	xyz_v(n+z_ldown,:)=xyz_v(n+z_down,:)
636
637	ENDIF
638
639	IF (ii_glo==iim_glo .AND. jj_glo==1) THEN
640	le(n+u_right)=0
641	xyz_v(n+z_rdown,:)=xyz_v(n+z_rup,:)
642	ENDIF
643
644	IF (ii_glo==iim_glo .AND. jj_glo==jjm_glo) THEN
645	le(n+u_rup)=0
646	xyz_v(n+z_rup,:)=xyz_v(n+z_up,:)
647	ENDIF
648
649	IF (ii_glo==1 .AND. jj_glo==jjm_glo) THEN
650	le(n+u_lup)=0
651	xyz_v(n+z_up,:)=xyz_v(n+z_lup,:)
652	ENDIF
653
654	ENDDO
655	ENDDO
656
657	DO j=jj_begin-1,jj_end+1
658	DO i=ii_begin-1,ii_end+1
659	n=(j-1)*iim+i
660	xyz_i(n,:)=xyz_i(n,:) * radius
661	xyz_v(n+z_up,:)=xyz_v(n+z_up,:) * radius
662	xyz_v(n+z_down,:)=xyz_v(n+z_down,:) *radius
663	de(n+u_right)=de(n+u_right) * radius
664	de(n+u_lup)=de(n+u_lup)*radius
665	de(n+u_ldown)=de(n+u_ldown)*radius
666	xyz_e(n+u_right,:)=xyz_e(n+u_right,:)*radius
667	xyz_e(n+u_lup,:)=xyz_e(n+u_lup,:)*radius
668	xyz_e(n+u_ldown,:)=xyz_e(n+u_ldown,:)*radius
669	le(n+u_right)=le(n+u_right)*radius
670	le(n+u_lup)=le(n+u_lup)*radius
671	le(n+u_ldown)=le(n+u_ldown)*radius
672	Ai(n)=Ai(n)radius*2
673	Av(n+z_up)=Av(n+z_up)radius*2
674	Av(n+z_down)=Av(n+z_down)radius*2
675	ENDDO
676	ENDDO
677
678	ENDDO
679
680	CALL transfert_request(geom%Ai,req_i1)
681	CALL transfert_request(geom%centroid,req_i1)
682
683	! CALL surf_triangle(d%xyz(:,ii_begin,jj_begin),d%xyz(:,ii_begin,jj_end),d%xyz(:,ii_end,jj_begin),S)
684
685	END SUBROUTINE set_geometry
686
687	SUBROUTINE compute_wee(n,pos,w)
688	IMPLICIT NONE
689	INTEGER,INTENT(IN) :: n
690	INTEGER,INTENT(IN) :: pos
691	REAL(rstd),INTENT(OUT) ::w(6)
692
693	REAL(rstd) :: ne_(0:5)
694	REAL(rstd) :: Riv_(6)
695	INTEGER :: k
696
697
698	DO k=0,5
699	ne_(k)=ne(n,MOD(pos-1+k+6,6)+1)
700	Riv_(k+1)=Riv(n,MOD(pos-1+k+6,6)+1)
701	ENDDO
702
703	w(1)=-ne_(0)ne_(1)(Riv_(1)-0.5)
704	w(2)=-ne_(2)(ne_(0)Riv_(2)-w(1)*ne_(1))
705	w(3)=-ne_(3)(ne_(0)Riv_(3)-w(2)*ne_(2))
706	w(4)=-ne_(4)(ne_(0)Riv_(4)-w(3)*ne_(3))
707	w(5)=-ne_(5)(ne_(0)Riv_(5)-w(4)*ne_(4))
708	w(6)=ne_(0)ne_(5)(Riv_(6)-0.5)
709
710	! IF ( ABS(w(5)-w(6))>1e-20) PRINT *, "pb pour wee : w(5)!=w(6)",sum(Riv_(:))
711
712	END SUBROUTINE compute_wee
713
714
715
716	SUBROUTINE compute_geometry
717	IMPLICIT NONE
718	CALL allocate_geometry
719	CALL set_geometry
720
721	END SUBROUTINE compute_geometry
722
723	END MODULE geometry

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