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readaerosol.F90 @ 1198

Last change on this file since 1198 was 1189, checked in by yann meurdesoif, 15 years ago

Correction pour retablir l'OpenMP

Property svn:eol-style set to native
Property svn:keywords set to Author Date Id Revision

File size: 22.4 KB

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1	! $Id: readaerosol.F90 1189 2009-06-23 21:31:04Z idelkadi $
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=30) :: cvar
206	INTEGER :: ncid, dimid, varid
207	INTEGER :: imth, i, j, k, ierr
208	REAL :: npole, spole
209	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varmth
210	REAL, ALLOCATABLE, DIMENSION(:,:,:,:) :: varyear ! Global variable read from file, 12 month
211	REAL, ALLOCATABLE, DIMENSION(:,:,:) :: varyear_glo1D !(klon_glo, klev_src, 12)
212	REAL, ALLOCATABLE, DIMENSION(:) :: varktmp
213
214	REAL, DIMENSION(iim,jjm+1,12) :: psurf_glo2D ! Surface pression for 12 months on dynamics global grid
215	REAL, DIMENSION(klon_glo,12) :: psurf_glo1D ! -"- on physical global grid
216	REAL, DIMENSION(iim,jjm+1,12) :: load_glo2D ! Load for 12 months on dynamics global grid
217	REAL, DIMENSION(klon_glo,12) :: load_glo1D ! -"- on physical global grid
218	REAL, DIMENSION(iim,jjm+1) :: vartmp
219	REAL, DIMENSION(iim) :: lon_src ! longitudes in file
220	REAL, DIMENSION(jjm+1) :: lat_src, lat_src_inv ! latitudes in file
221	LOGICAL :: new_file ! true if new file format detected
222	LOGICAL :: invert_lat ! true if the field has to be inverted for latitudes
223
224
225	! Deallocate pointers
226	IF (ASSOCIATED(pt_ap)) DEALLOCATE(pt_ap)
227	IF (ASSOCIATED(pt_b)) DEALLOCATE(pt_b)
228
229	!$OMP MASTER
230	IF (is_mpi_root) THEN
231
232	! 1) Open file
233	!****************************************************************************************
234	fname = TRIM(varname)//'.run'//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 (minval(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 (minval(ABS(lat_src - io_lat)) < 0.001) THEN
263	! Latitudes are the same
264	invert_lat=.FALSE.
265	ELSE IF (minval(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	END IF ! is_mpi_root
511	!$OMP END MASTER
512	!$OMP BARRIER
513
514	! 6) Distribute to all processes
515	! Scatter global field(klon_glo) to local process domain(klon)
516	! and distribute klev_src to all processes
517	!****************************************************************************************
518
519	! Distribute klev_src
520	CALL bcast(klev_src)
521
522	! Allocate and distribute pt_ap and pt_b
523	IF (.NOT. ASSOCIATED(pt_ap)) THEN ! if pt_ap is allocated also pt_b is allocated
524	ALLOCATE(pt_ap(klev_src), pt_b(klev_src), stat=ierr)
525	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 4',1)
526	END IF
527	CALL bcast(pt_ap)
528	CALL bcast(pt_b)
529
530	! Allocate space for output pointer variable at local process
531	IF (ASSOCIATED(pt_year)) DEALLOCATE(pt_year)
532	ALLOCATE(pt_year(klon, klev_src, 12), stat=ierr)
533	IF (ierr /= 0) CALL abort_gcm('get_aero_fromfile', 'pb in allocation 5',1)
534
535	! Scatter global field to local domain at local process
536	CALL scatter(varyear_glo1D, pt_year)
537	CALL scatter(psurf_glo1D, psurf_out)
538	CALL scatter(load_glo1D, load_out)
539
540	! 7) Test for negative values
541	!****************************************************************************************
542	IF (MINVAL(pt_year) < 0.) THEN
543	WRITE(lunout,*) 'Warning! Negative values read from file :', fname
544	END IF
545
546	END SUBROUTINE get_aero_fromfile
547
548
549	SUBROUTINE check_err(status)
550	USE netcdf
551	IMPLICIT NONE
552
553	INCLUDE "iniprint.h"
554	INTEGER, INTENT (IN) :: status
555
556	IF (status /= NF90_NOERR) THEN
557	WRITE(lunout,*) 'Error in get_aero_fromfile ',status
558	CALL abort_gcm('get_aero_fromfile',trim(nf90_strerror(status)),1)
559	END IF
560
561	END SUBROUTINE check_err
562
563
564	END MODULE readaerosol_mod

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