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readaerosol.F90 @ 5444

Last change on this file since 5444 was 1270, checked in by Laurent Fairhead, 15 years ago
Les nouvelles routines de lecture des aerosols posent probleme en multiproc. On revient aux routines precedentes en incluant le traitement du calendrier realiste.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 22.5 KB

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1	! $Id: readaerosol.F90 1270 2009-11-25 14:02:45Z fhourdin $
2	!
3	MODULE readaerosol_mod
4
5	REAL, SAVE :: not_valid=-333.
6
7	CONTAINS
8
9	SUBROUTINE readaerosol(name_aero, type, iyr_in, klev_src, pt_ap, pt_b, pt_out, psurf, load)
10
11	!****************************************************************************************
12	! This routine will read the aersosol from file.
13	!
14	! Read a year data with get_aero_fromfile depending on aer_type :
15	! - actuel : read year 1980
16	! - preind : read natural data
17	! - scenario : read one or two years and do eventually linare time interpolation
18	!
19	! Return pointer, pt_out, to the year read or result from interpolation
20	!****************************************************************************************
21	USE dimphy
22
23	IMPLICIT NONE
24
25	INCLUDE "iniprint.h"
26
27	! Input arguments
28	CHARACTER(len=7), INTENT(IN) :: name_aero
29	CHARACTER(len=*), INTENT(IN) :: type ! correspond to aer_type in clesphys.h
30	INTEGER, INTENT(IN) :: iyr_in
31
32	! Output
33	INTEGER, INTENT(OUT) :: klev_src
34	REAL, POINTER, DIMENSION(:) :: pt_ap ! Pointer for describing the vertical levels
35	REAL, POINTER, DIMENSION(:) :: pt_b ! Pointer for describing the vertical levels
36	REAL, POINTER, DIMENSION(:,:,:) :: pt_out ! The massvar distributions, DIMENSION(klon, klev_src, 12)
37	REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf ! Surface pression for 12 months
38	REAL, DIMENSION(klon,12), INTENT(OUT) :: load ! Aerosol mass load in each column for 12 months
39
40	! Local variables
41	CHARACTER(len=4) :: cyear
42	REAL, POINTER, DIMENSION(:,:,:) :: pt_2
43	REAL, DIMENSION(klon,12) :: psurf2, load2
44	REAL :: p0 ! Reference pressure
45	INTEGER :: iyr1, iyr2, klev_src2
46	INTEGER :: it, k, i
47	LOGICAL, PARAMETER :: lonlyone=.FALSE.
48
49	!****************************************************************************************
50	! Read data depending on aer_type
51	!
52	!****************************************************************************************
53
54	IF (type == 'actuel') THEN
55	! Read and return data for year 1980
56	!****************************************************************************************
57	cyear='1980'
58	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
59	! pt_out has dimensions (klon, klev_src, 12)
60	CALL get_aero_fromfile(name_aero, cyear, klev_src, pt_ap, pt_b, p0, pt_out, psurf, load)
61
62
63	ELSE IF (type == 'preind') THEN
64	! Read and return data from file with suffix .nat
65	!****************************************************************************************
66	cyear='.nat'
67	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
68	! pt_out has dimensions (klon, klev_src, 12)
69	CALL get_aero_fromfile(name_aero, cyear, klev_src, pt_ap, pt_b, p0, pt_out, psurf, load)
70
71	ELSE IF (type == 'scenario') THEN
72	! Read data depending on actual year and interpolate if necessary
73	!****************************************************************************************
74	IF (iyr_in .LT. 1850) THEN
75	cyear='.nat'
76	WRITE(lunout,*) 'get_aero 1 iyr_in=', iyr_in,' ',cyear
77	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
78	! pt_out has dimensions (klon, klev_src, 12)
79	CALL get_aero_fromfile(name_aero, cyear, klev_src, pt_ap, pt_b, p0, pt_out, psurf, load)
80
81	ELSE IF (iyr_in .GE. 2100) THEN
82	cyear='2100'
83	WRITE(lunout,*) 'get_aero 2 iyr_in=', iyr_in,' ',cyear
84	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
85	! pt_out has dimensions (klon, klev_src, 12)
86	CALL get_aero_fromfile(name_aero, cyear, klev_src, pt_ap, pt_b, p0, pt_out, psurf, load)
87
88	ELSE
89	! Read data from 2 decades and interpolate to actual year
90	! a) from actual 10-yr-period
91	IF (iyr_in.LT.1900) THEN
92	iyr1 = 1850
93	iyr2 = 1900
94	ELSE IF (iyr_in.GE.1900.AND.iyr_in.LT.1920) THEN
95	iyr1 = 1900
96	iyr2 = 1920
97	ELSE
98	iyr1 = INT(iyr_in/10)*10
99	iyr2 = INT(1+iyr_in/10)*10
100	ENDIF
101
102	WRITE(cyear,'(I4)') iyr1
103	WRITE(lunout,*) 'get_aero 3 iyr_in=', iyr_in,' ',cyear
104	! get_aero_fromfile returns pt_out allocated and initialized with data for 12 month
105	! pt_out has dimensions (klon, klev_src, 12)
106	CALL get_aero_fromfile(name_aero, cyear, klev_src, pt_ap, pt_b, p0, pt_out, psurf, load)
107
108	! If to read two decades:
109	IF (.NOT.lonlyone) THEN
110
111	! b) from the next following one
112	WRITE(cyear,'(I4)') iyr2
113	WRITE(lunout,*) 'get_aero 4 iyr_in=', iyr_in,' ',cyear
114
115	NULLIFY(pt_2)
116	! get_aero_fromfile returns pt_2 allocated and initialized with data for 12 month
117	! pt_2 has dimensions (klon, klev_src, 12)
118	CALL get_aero_fromfile(name_aero, cyear, klev_src2, pt_ap, pt_b, p0, pt_2, psurf2, load2)
119	! Test for same number of vertical levels
120	IF (klev_src /= klev_src2) THEN
121	WRITE(lunout,*) 'Two aerosols files with different number of vertical levels is not allowded'
122	CALL abort_gcm('readaersosol','Error in number of vertical levels',1)
123	END IF
124
125	! Linare interpolate to the actual year:
126	DO it=1,12
127	DO k=1,klev_src
128	DO i = 1, klon
129	pt_out(i,k,it) = &
130	pt_out(i,k,it) - FLOAT(iyr_in-iyr1)/FLOAT(iyr2-iyr1) * &
131	(pt_out(i,k,it) - pt_2(i,k,it))
132	END DO
133	END DO
134
135	DO i = 1, klon
136	psurf(i,it) = &
137	psurf(i,it) - FLOAT(iyr_in-iyr1)/FLOAT(iyr2-iyr1) * &
138	(psurf(i,it) - psurf2(i,it))
139
140	load(i,it) = &
141	load(i,it) - FLOAT(iyr_in-iyr1)/FLOAT(iyr2-iyr1) * &
142	(load(i,it) - load2(i,it))
143	END DO
144	END DO
145
146	! Deallocate pt_2 no more needed
147	DEALLOCATE(pt_2)
148
149	END IF ! lonlyone
150	END IF ! iyr_in .LT. 1850
151
152	ELSE
153	WRITE(lunout,*)'This option is not implemented : aer_type = ', type
154	CALL abort_gcm('readaerosol','Error : aer_type parameter not accepted',1)
155	END IF ! type
156
157
158	END SUBROUTINE readaerosol
159
160
161	SUBROUTINE get_aero_fromfile(varname, cyr, klev_src, pt_ap, pt_b, p0, pt_year, psurf_out, load_out)
162	!****************************************************************************************
163	! Read 12 month aerosol from file and distribute to local process on physical grid.
164	! Vertical levels, klev_src, may differ from model levels if new file format.
165	!
166	! For mpi_root and master thread :
167	! 1) Open file
168	! 2) Find vertical dimension klev_src
169	! 3) Read field month by month
170	! 4) Close file
171	! 5) Transform the global field from 2D(iim, jjp+1) to 1D(klon_glo)
172	! - Also the levels and the latitudes have to be inversed
173	!
174	! For all processes and threads :
175	! 6) Scatter global field(klon_glo) to local process domain(klon)
176	! 7) Test for negative values
177	!****************************************************************************************
178
179	USE netcdf
180	USE dimphy
181	USE mod_grid_phy_lmdz
182	USE mod_phys_lmdz_para
183	USE iophy, ONLY : io_lon, io_lat
184
185	IMPLICIT NONE
186
187	INCLUDE "dimensions.h"
188	INCLUDE "iniprint.h"
189
190	! Input argumets
191	CHARACTER(len=7), INTENT(IN) :: varname
192	CHARACTER(len=4), INTENT(IN) :: cyr
193
194	! Output arguments
195	INTEGER, INTENT(OUT) :: klev_src ! Number of vertical levels in file
196	REAL, POINTER, DIMENSION(:) :: pt_ap ! Pointer for describing the vertical levels
197	REAL, POINTER, DIMENSION(:) :: pt_b ! Pointer for describing the vertical levels
198	REAL :: p0 ! Reference pressure value
199	REAL, POINTER, DIMENSION(:,:,:) :: pt_year ! Pointer-variabale from file, 12 month, grid : klon,klev_src
200	REAL, DIMENSION(klon,12), INTENT(OUT) :: psurf_out ! Surface pression for 12 months
201	REAL, DIMENSION(klon,12), INTENT(OUT) :: load_out ! Aerosol mass load in each column
202
203	! Local variables
204	CHARACTER(len=30) :: fname
205	CHARACTER(len=8) :: filename='aerosols'
206	CHARACTER(len=30) :: cvar
207	INTEGER :: ncid, dimid, varid
208	INTEGER :: imth, i, j, k, ierr
209	REAL :: npole, spole
210	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varmth
211	REAL, ALLOCATABLE, DIMENSION(:,:,:,:) :: varyear ! Global variable read from file, 12 month
212	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varyear_glo1D !(klon_glo, klev_src, 12)
213	REAL, ALLOCATABLE, DIMENSION(:) :: varktmp
214
215	REAL, DIMENSION(iim,jjm+1,12) :: psurf_glo2D ! Surface pression for 12 months on dynamics global grid
216	REAL, DIMENSION(klon_glo,12) :: psurf_glo1D ! -"- on physical global grid
217	REAL, DIMENSION(iim,jjm+1,12) :: load_glo2D ! Load for 12 months on dynamics global grid
218	REAL, DIMENSION(klon_glo,12) :: load_glo1D ! -"- on physical global grid
219	REAL, DIMENSION(iim,jjm+1) :: vartmp
220	REAL, DIMENSION(iim) :: lon_src ! longitudes in file
221	REAL, DIMENSION(jjm+1) :: lat_src, lat_src_inv ! latitudes in file
222	LOGICAL :: new_file ! true if new file format detected
223	LOGICAL :: invert_lat ! true if the field has to be inverted for latitudes
224
225
226	! Deallocate pointers
227	IF (ASSOCIATED(pt_ap)) DEALLOCATE(pt_ap)
228	IF (ASSOCIATED(pt_b)) DEALLOCATE(pt_b)
229
230	IF (is_mpi_root .AND. is_omp_root) THEN
231
232	! 1) Open file
233	!****************************************************************************************
234	fname = filename//cyr//'.nc'
235
236	WRITE(lunout,*) 'reading ', TRIM(fname)
237	CALL check_err( nf90_open(TRIM(fname), NF90_NOWRITE, ncid) )
238
239	! Test for equal longitudes and latitudes in file and model
240	!****************************************************************************************
241	! Read and test longitudes
242	CALL check_err( nf90_inq_varid(ncid, 'lon', varid) )
243	CALL check_err( nf90_get_var(ncid, varid, lon_src(:)) )
244
245	IF (maxval(ABS(lon_src - io_lon)) > 0.001) THEN
246	WRITE(lunout,*) 'Problem in longitudes read from file : ',TRIM(fname)
247	WRITE(lunout,*) 'longitudes in file ', TRIM(fname),' : ', lon_src
248	WRITE(lunout,*) 'longitudes in model :', io_lon
249
250	CALL abort_gcm('get_aero_fromfile', 'longitudes are not the same in file and model',1)
251	END IF
252
253	! Read and test latitudes
254	CALL check_err( nf90_inq_varid(ncid, 'lat', varid) )
255	CALL check_err( nf90_get_var(ncid, varid, lat_src(:)) )
256
257	! Invert source latitudes
258	DO j = 1, jjm+1
259	lat_src_inv(j) = lat_src(jjm+1 +1 -j)
260	END DO
261
262	IF (maxval(ABS(lat_src - io_lat)) < 0.001) THEN
263	! Latitudes are the same
264	invert_lat=.FALSE.
265	ELSE IF (maxval(ABS(lat_src_inv - io_lat)) < 0.001) THEN
266	! Inverted source latitudes correspond to model latitudes
267	WRITE(lunout,*) 'latitudes will be inverted for file : ',TRIM(fname)
268	invert_lat=.TRUE.
269	ELSE
270	WRITE(lunout,*) 'Problem in latitudes read from file : ',TRIM(fname)
271	WRITE(lunout,*) 'latitudes in file ', TRIM(fname),' : ', lat_src
272	WRITE(lunout,*) 'latitudes in model :', io_lat
273	CALL abort_gcm('get_aero_fromfile', 'latitudes do not correspond between file and model',1)
274	END IF
275
276	! 2) Check if old or new file is avalabale.
277	! New type of file should contain the dimension 'lev'
278	! Old type of file should contain the dimension 'PRESNIVS'
279	!****************************************************************************************
280	ierr = nf90_inq_dimid(ncid, 'lev', dimid)
281	IF (ierr /= NF90_NOERR) THEN
282	! Coordinate axe lev not found. Check for presnivs.
283	ierr = nf90_inq_dimid(ncid, 'PRESNIVS', dimid)
284	IF (ierr /= NF90_NOERR) THEN
285	! Dimension PRESNIVS not found either
286	CALL abort_gcm('get_aero_fromfile', 'dimension lev or presnivs not in file',1)
287	ELSE
288	! Old file found
289	new_file=.FALSE.
290	WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will not be done'
291	END IF
292	ELSE
293	! New file found
294	new_file=.TRUE.
295	WRITE(lunout,*) 'Vertical interpolation for ',TRIM(varname),' will be done'
296	END IF
297
298	! 2) Find vertical dimension klev_src
299	!****************************************************************************************
300	CALL check_err( nf90_inquire_dimension(ncid, dimid, len = klev_src) )
301
302	! Allocate variables depending on the number of vertical levels
303	ALLOCATE(varmth(iim, jjm+1, klev_src), varyear(iim, jjm+1, klev_src, 12), stat=ierr)
304	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 1',1)
305
306	ALLOCATE(pt_ap(klev_src), pt_b(klev_src), varktmp(klev_src), stat=ierr)
307	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 2',1)
308
309	! 3) Read all variables from file
310	! There is 2 options for the file structure :
311	! new_file=TRUE : read varyear, ps, pt_ap and pt_b
312	! new_file=FALSE : read varyear month by month
313	!****************************************************************************************
314
315	IF (new_file) THEN
316
317	! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
318	!****************************************************************************************
319	! Get variable id
320	CALL check_err( nf90_inq_varid(ncid, TRIM(varname), varid) )
321
322	! Get the variable
323	CALL check_err( nf90_get_var(ncid, varid, varyear(:,:,:,:)) )
324
325	! ++) Read surface pression, 12 month in one variable
326	!****************************************************************************************
327	! Get variable id
328	CALL check_err( nf90_inq_varid(ncid, "ps", varid) )
329	! Get the variable
330	CALL check_err( nf90_get_var(ncid, varid, psurf_glo2D) )
331
332	! ++) Read mass load, 12 month in one variable
333	!****************************************************************************************
334	! Get variable id
335	CALL check_err( nf90_inq_varid(ncid, "load_"//TRIM(varname), varid) )
336	! Get the variable
337	CALL check_err( nf90_get_var(ncid, varid, load_glo2D) )
338
339	! ++) Read ap
340	!****************************************************************************************
341	! Get variable id
342	CALL check_err( nf90_inq_varid(ncid, "ap", varid) )
343	! Get the variable
344	CALL check_err( nf90_get_var(ncid, varid, pt_ap) )
345
346	! ++) Read b
347	!****************************************************************************************
348	! Get variable id
349	CALL check_err( nf90_inq_varid(ncid, "b", varid) )
350	! Get the variable
351	CALL check_err( nf90_get_var(ncid, varid, pt_b) )
352
353	! ++) Read p0 : reference pressure
354	!****************************************************************************************
355	! Get variable id
356	CALL check_err( nf90_inq_varid(ncid, "p0", varid) )
357	! Get the variable
358	CALL check_err( nf90_get_var(ncid, varid, p0) )
359
360
361	ELSE ! old file
362
363	! ++) Read the aerosol concentration month by month and concatenate to total variable varyear
364	!****************************************************************************************
365	DO imth=1, 12
366	IF (imth.EQ.1) THEN
367	cvar=TRIM(varname)//'JAN'
368	ELSE IF (imth.EQ.2) THEN
369	cvar=TRIM(varname)//'FEB'
370	ELSE IF (imth.EQ.3) THEN
371	cvar=TRIM(varname)//'MAR'
372	ELSE IF (imth.EQ.4) THEN
373	cvar=TRIM(varname)//'APR'
374	ELSE IF (imth.EQ.5) THEN
375	cvar=TRIM(varname)//'MAY'
376	ELSE IF (imth.EQ.6) THEN
377	cvar=TRIM(varname)//'JUN'
378	ELSE IF (imth.EQ.7) THEN
379	cvar=TRIM(varname)//'JUL'
380	ELSE IF (imth.EQ.8) THEN
381	cvar=TRIM(varname)//'AUG'
382	ELSE IF (imth.EQ.9) THEN
383	cvar=TRIM(varname)//'SEP'
384	ELSE IF (imth.EQ.10) THEN
385	cvar=TRIM(varname)//'OCT'
386	ELSE IF (imth.EQ.11) THEN
387	cvar=TRIM(varname)//'NOV'
388	ELSE IF (imth.EQ.12) THEN
389	cvar=TRIM(varname)//'DEC'
390	END IF
391
392	! Get variable id
393	CALL check_err( nf90_inq_varid(ncid, TRIM(cvar), varid) )
394
395	! Get the variable
396	CALL check_err( nf90_get_var(ncid, varid, varmth) )
397
398	! Store in variable for the whole year
399	varyear(:,:,:,imth)=varmth(:,:,:)
400
401	END DO
402
403	! Putting dummy
404	psurf_glo2D(:,:,:) = not_valid
405	load_glo2D(:,:,:) = not_valid
406	pt_ap(:) = not_valid
407	pt_b(:) = not_valid
408
409	END IF
410
411	! 4) Close file
412	!****************************************************************************************
413	CALL check_err( nf90_close(ncid) )
414
415
416	! 5) Transform the global field from 2D(iim, jjp+1) to 1D(klon_glo)
417	!****************************************************************************************
418	! Test if vertical levels have to be inversed
419
420	IF ((pt_b(1) < pt_b(klev_src)) .OR. .NOT. new_file) THEN
421	WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' needs to be inverted'
422	WRITE(lunout,*) 'before pt_ap = ', pt_ap
423	WRITE(lunout,*) 'before pt_b = ', pt_b
424
425	! Inverse vertical levels for varyear
426	DO imth=1, 12
427	varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
428	DO k=1, klev_src
429	DO j=1, jjm+1
430	DO i=1,iim
431	varyear(i,j,k,imth) = varmth(i,j,klev_src+1-k)
432	END DO
433	END DO
434	END DO
435	END DO
436
437	! Inverte vertical axes for pt_ap and pt_b
438	varktmp(:) = pt_ap(:)
439	DO k=1, klev_src
440	pt_ap(k) = varktmp(klev_src+1-k)
441	END DO
442
443	varktmp(:) = pt_b(:)
444	DO k=1, klev_src
445	pt_b(k) = varktmp(klev_src+1-k)
446	END DO
447	WRITE(lunout,*) 'after pt_ap = ', pt_ap
448	WRITE(lunout,*) 'after pt_b = ', pt_b
449
450	ELSE
451	WRITE(lunout,*) 'Vertical axis in file ',TRIM(fname), ' is ok, no vertical inversion is done'
452	WRITE(lunout,*) 'pt_ap = ', pt_ap
453	WRITE(lunout,*) 'pt_b = ', pt_b
454	END IF
455
456	! - Invert latitudes if necessary
457	DO imth=1, 12
458	IF (invert_lat) THEN
459
460	! Invert latitudes for the variable
461	varmth(:,:,:) = varyear(:,:,:,imth) ! use varmth temporarly
462	DO k=1,klev_src
463	DO j=1,jjm+1
464	DO i=1,iim
465	varyear(i,j,k,imth) = varmth(i,jjm+1+1-j,k)
466	END DO
467	END DO
468	END DO
469
470	! Invert latitudes for surface pressure
471	vartmp(:,:) = psurf_glo2D(:,:,imth)
472	DO j=1, jjm+1
473	DO i=1,iim
474	psurf_glo2D(i,j,imth)= vartmp(i,jjm+1+1-j)
475	END DO
476	END DO
477
478	! Invert latitudes for the load
479	vartmp(:,:) = load_glo2D(:,:,imth)
480	DO j=1, jjm+1
481	DO i=1,iim
482	load_glo2D(i,j,imth)= vartmp(i,jjm+1+1-j)
483	END DO
484	END DO
485	END IF ! invert_lat
486
487	! Do zonal mead at poles and distribut at whole first and last latitude
488	DO k=1, klev_src
489	npole=0. ! North pole, j=1
490	spole=0. ! South pole, j=jjm+1
491	DO i=1,iim
492	npole = npole + varyear(i,1,k,imth)
493	spole = spole + varyear(i,jjm+1,k,imth)
494	END DO
495	npole = npole/FLOAT(iim)
496	spole = spole/FLOAT(iim)
497	varyear(:,1, k,imth) = npole
498	varyear(:,jjm+1,k,imth) = spole
499	END DO
500	END DO ! imth
501
502	ALLOCATE(varyear_glo1D(klon_glo, klev_src, 12), stat=ierr)
503	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 3',1)
504
505	! Transform from 2D to 1D field
506	CALL grid2Dto1D_glo(varyear,varyear_glo1D)
507	CALL grid2Dto1D_glo(psurf_glo2D,psurf_glo1D)
508	CALL grid2Dto1D_glo(load_glo2D,load_glo1D)
509
510	ELSE
511	ALLOCATE(varyear_glo1D(0,0,0))
512	END IF ! is_mpi_root .AND. is_omp_root
513
514	!$OMP BARRIER
515
516	! 6) Distribute to all processes
517	! Scatter global field(klon_glo) to local process domain(klon)
518	! and distribute klev_src to all processes
519	!****************************************************************************************
520
521	! Distribute klev_src
522	CALL bcast(klev_src)
523
524	! Allocate and distribute pt_ap and pt_b
525	IF (.NOT. ASSOCIATED(pt_ap)) THEN ! if pt_ap is allocated also pt_b is allocated
526	ALLOCATE(pt_ap(klev_src), pt_b(klev_src), stat=ierr)
527	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 4',1)
528	END IF
529	CALL bcast(pt_ap)
530	CALL bcast(pt_b)
531
532	! Allocate space for output pointer variable at local process
533	IF (ASSOCIATED(pt_year)) DEALLOCATE(pt_year)
534	ALLOCATE(pt_year(klon, klev_src, 12), stat=ierr)
535	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 5',1)
536
537	! Scatter global field to local domain at local process
538	CALL scatter(varyear_glo1D, pt_year)
539	CALL scatter(psurf_glo1D, psurf_out)
540	CALL scatter(load_glo1D, load_out)
541
542	! 7) Test for negative values
543	!****************************************************************************************
544	IF (MINVAL(pt_year) < 0.) THEN
545	WRITE(lunout,*) 'Warning! Negative values read from file :', fname
546	END IF
547
548	END SUBROUTINE get_aero_fromfile
549
550
551	SUBROUTINE check_err(status)
552	USE netcdf
553	IMPLICIT NONE
554
555	INCLUDE "iniprint.h"
556	INTEGER, INTENT (IN) :: status
557
558	IF (status /= NF90_NOERR) THEN
559	WRITE(lunout,*) 'Error in get_aero_fromfile ',status
560	CALL abort_gcm('get_aero_fromfile',trim(nf90_strerror(status)),1)
561	END IF
562
563	END SUBROUTINE check_err
564
565
566	END MODULE readaerosol_mod

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