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readaerosol_interp.F90 @ 3536

Last change on this file since 3536 was 1583, checked in by jghattas, 13 years ago
Modified filename for specific case aer_type=mix3. Now same filename used for SO4 and the rest of aerosols.
File size: 23.3 KB

Line
1	! $Id$
2	!
3	SUBROUTINE readaerosol_interp(id_aero, itap, pdtphys, r_day, first, pplay, paprs, t_seri, mass_out, pi_mass_out, load_src)
4	!
5	! This routine will return the mass concentration at actual day(mass_out) and
6	! the pre-industrial values(pi_mass_out) for aerosol corresponding to "id_aero".
7	! The mass concentrations for all aerosols are saved in this routine but each
8	! call to this routine only treats the aerosol "id_aero".
9	!
10	! 1) Read in data for the whole year, only at first time step
11	! 2) Interpolate to the actual day, only at new day
12	! 3) Interpolate to the model vertical grid (target grid), only at new day
13	! 4) Test for negative mass values
14
15	USE ioipsl
16	USE dimphy, ONLY : klev,klon
17	USE mod_phys_lmdz_para, ONLY : mpi_rank
18	USE readaerosol_mod
19	USE aero_mod, ONLY : naero_spc, name_aero
20	USE write_field_phy
21	USE phys_cal_mod
22
23	IMPLICIT NONE
24
25	INCLUDE "YOMCST.h"
26	INCLUDE "chem.h"
27	INCLUDE "temps.h"
28	INCLUDE "clesphys.h"
29	INCLUDE "iniprint.h"
30	INCLUDE "dimensions.h"
31	INCLUDE "comvert.h"
32	!
33	! Input:
34	!****************************************************************************************
35	INTEGER, INTENT(IN) :: id_aero! Identity number for the aerosol to treat
36	INTEGER, INTENT(IN) :: itap ! Physic step count
37	REAL, INTENT(IN) :: pdtphys! Physic day step
38	REAL, INTENT(IN) :: r_day ! Day of integration
39	LOGICAL, INTENT(IN) :: first ! First model timestep
40	REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay ! pression at model mid-layers
41	REAL, DIMENSION(klon,klev+1),INTENT(IN):: paprs ! pression between model layers
42	REAL, DIMENSION(klon,klev), INTENT(IN) :: t_seri ! air temperature
43	!
44	! Output:
45	!****************************************************************************************
46	REAL, INTENT(OUT) :: mass_out(klon,klev) ! Mass of aerosol (monthly mean data,from file) [ug AIBCM/m3]
47	REAL, INTENT(OUT) :: pi_mass_out(klon,klev) ! Mass of preindustrial aerosol (monthly mean data,from file) [ug AIBCM/m3]
48	REAL, INTENT(OUT) :: load_src(klon) ! Load of aerosol (monthly mean data,from file) [kg/m3]
49	!
50	! Local Variables:
51	!****************************************************************************************
52	INTEGER :: i, k, ierr
53	INTEGER :: iday, iyr, lmt_pas
54	! INTEGER :: im, day1, day2, im2
55	INTEGER :: im, im2
56	REAL :: day1, day2
57	INTEGER :: pi_klev_src ! Only for testing purpose
58	INTEGER, SAVE :: klev_src ! Number of vertical levles in source field
59	!$OMP THREADPRIVATE(klev_src)
60
61	REAL :: zrho ! Air density [kg/m3]
62	REAL :: volm ! Volyme de melange [kg/kg]
63	REAL, DIMENSION(klon) :: psurf_day, pi_psurf_day
64	REAL, DIMENSION(klon) :: pi_load_src ! Mass load at source grid
65	REAL, DIMENSION(klon) :: load_tgt, load_tgt_test
66	REAL, DIMENSION(klon,klev) :: delp ! pressure difference in each model layer
67
68	REAL, ALLOCATABLE, DIMENSION(:,:) :: pplay_src ! pression mid-layer at source levels
69	REAL, ALLOCATABLE, DIMENSION(:,:) :: tmp1, tmp2 ! Temporary variables
70	REAL, ALLOCATABLE, DIMENSION(:,:,:,:), SAVE :: var_year ! VAR in right dimension for the total year
71	REAL, ALLOCATABLE, DIMENSION(:,:,:,:), SAVE :: pi_var_year ! pre-industrial VAR, -"-
72	!$OMP THREADPRIVATE(var_year,pi_var_year)
73	REAL, ALLOCATABLE, DIMENSION(:,:,:),SAVE :: var_day ! VAR interpolated to the actual day and model grid
74	REAL, ALLOCATABLE, DIMENSION(:,:,:),SAVE :: pi_var_day ! pre-industrial VAR, -"-
75	!$OMP THREADPRIVATE(var_day,pi_var_day)
76	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: psurf_year, pi_psurf_year ! surface pressure for the total year
77	!$OMP THREADPRIVATE(psurf_year, pi_psurf_year)
78	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: load_year, pi_load_year ! load in the column for the total year
79	!$OMP THREADPRIVATE(load_year, pi_load_year)
80
81	REAL, DIMENSION(:,:,:), POINTER :: pt_tmp ! Pointer allocated in readaerosol
82	REAL, POINTER, DIMENSION(:), SAVE :: pt_ap, pt_b ! Pointer for describing the vertical levels
83	!$OMP THREADPRIVATE(pt_ap, pt_b)
84	INTEGER, SAVE :: nbr_tsteps ! number of time steps in file read
85	REAL, DIMENSION(14), SAVE :: month_len, month_start, month_mid
86	!$OMP THREADPRIVATE(nbr_tsteps, month_len, month_start, month_mid)
87	REAL :: jDay
88
89	LOGICAL :: lnewday ! Indicates if first time step at a new day
90	LOGICAL :: OLDNEWDAY
91	LOGICAL,SAVE :: vert_interp ! Indicates if vertical interpolation will be done
92	LOGICAL,SAVE :: debug=.FALSE.! Debugging in this subroutine
93	!$OMP THREADPRIVATE(vert_interp, debug)
94	CHARACTER(len=8) :: type
95	CHARACTER(len=8) :: filename
96
97
98	!****************************************************************************************
99	! Initialization
100	!
101	!****************************************************************************************
102
103	! Calculation to find if it is a new day
104
105	IF(mpi_rank == 0 .AND. debug )then
106	PRINT*,'CONTROL PANEL REGARDING TIME STEPING'
107	ENDIF
108
109	! Use phys_cal_mod
110	iday= day_cur
111	iyr = year_cur
112	im = mth_cur
113
114	! iday = INT(r_day)
115	! iyr = iday/360
116	! iday = iday-iyr*360 ! day of the actual year
117	! iyr = iyr + annee_ref ! year of the run
118	! im = iday/30 +1 ! the actual month
119	CALL ymds2ju(iyr, im, iday, 0., jDay)
120	! CALL ymds2ju(iyr, im, iday-(im-1)*30, 0., jDay)
121
122
123	IF(MOD(itap-1,NINT(86400./pdtphys)) == 0)THEN
124	lnewday=.TRUE.
125	ELSE
126	lnewday=.FALSE.
127	ENDIF
128
129	IF(mpi_rank == 0 .AND. debug)then
130	! 0.02 is about 0.5/24, namly less than half an hour
131	OLDNEWDAY = (r_day-FLOAT(iday) < 0.02)
132	! Once per day, update aerosol fields
133	lmt_pas = NINT(86400./pdtphys)
134	PRINT*,'r_day-FLOAT(iday) =',r_day-FLOAT(iday)
135	PRINT*,'itap =',itap
136	PRINT*,'pdtphys =',pdtphys
137	PRINT*,'lmt_pas =',lmt_pas
138	PRINT*,'iday =',iday
139	PRINT*,'r_day =',r_day
140	PRINT*,'day_cur =',day_cur
141	PRINT*,'mth_cur =',mth_cur
142	PRINT*,'year_cur =',year_cur
143	PRINT*,'NINT(86400./pdtphys) =',NINT(86400./pdtphys)
144	PRINT*,'MOD(0,1) =',MOD(0,1)
145	PRINT*,'lnewday =',lnewday
146	PRINT*,'OLDNEWDAY =',OLDNEWDAY
147	ENDIF
148
149	IF (.NOT. ALLOCATED(var_day)) THEN
150	ALLOCATE( var_day(klon, klev, naero_spc), stat=ierr)
151	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 1',1)
152	ALLOCATE( pi_var_day(klon, klev, naero_spc), stat=ierr)
153	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 2',1)
154
155	ALLOCATE( psurf_year(klon, 12, naero_spc), pi_psurf_year(klon, 12, naero_spc), stat=ierr)
156	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 3',1)
157
158	ALLOCATE( load_year(klon, 12, naero_spc), pi_load_year(klon, 12, naero_spc), stat=ierr)
159	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 4',1)
160
161	lnewday=.TRUE.
162
163	NULLIFY(pt_ap)
164	NULLIFY(pt_b)
165	END IF
166
167	!****************************************************************************************
168	! 1) Read in data : corresponding to the actual year and preindustrial data.
169	! Only for the first day of the year.
170	!
171	!****************************************************************************************
172	IF ( (first .OR. iday==0) .AND. lnewday ) THEN
173	NULLIFY(pt_tmp)
174
175	! Reading values corresponding to the closest year taking into count the choice of aer_type.
176	! For aer_type=scenario interpolation between 2 data sets is done in readaerosol.
177	! If aer_type=mix1, the run type and file name depends on the aerosol.
178	IF (aer_type=='preind' .OR. aer_type=='actuel' .OR. aer_type=='annuel' .OR. aer_type=='scenario') THEN
179	! Standard case
180	filename='aerosols'
181	type=aer_type
182	ELSE IF (aer_type == 'mix1') THEN
183	! Special case using a mix of decenal sulfate file and annual aerosols(all aerosols except sulfate)
184	IF (name_aero(id_aero) == 'SO4') THEN
185	filename='so4.run '
186	type='scenario'
187	ELSE
188	filename='aerosols'
189	type='annuel'
190	END IF
191	ELSE IF (aer_type == 'mix2') THEN
192	! Special case using a mix of decenal sulfate file and natrual aerosols
193	IF (name_aero(id_aero) == 'SO4') THEN
194	filename='so4.run '
195	type='scenario'
196	ELSE
197	filename='aerosols'
198	type='preind'
199	END IF
200	ELSE IF (aer_type == 'mix3') THEN
201	! Special case using a mix of annual sulfate file and natrual aerosols
202	IF (name_aero(id_aero) == 'SO4') THEN
203	filename='aerosols'
204	type='annuel'
205	ELSE
206	filename='aerosols'
207	type='preind'
208	END IF
209	ELSE
210	CALL abort_gcm('readaerosol_interp', 'this aer_type not supported',1)
211	END IF
212
213	CALL readaerosol(name_aero(id_aero), type, filename, iyr, klev_src, pt_ap, pt_b, pt_tmp, &
214	psurf_year(:,:,id_aero), load_year(:,:,id_aero))
215	IF (.NOT. ALLOCATED(var_year)) THEN
216	ALLOCATE(var_year(klon, klev_src, 12, naero_spc), stat=ierr)
217	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 5',1)
218	END IF
219	var_year(:,:,:,id_aero) = pt_tmp(:,:,:)
220
221	! Reading values corresponding to the preindustrial concentrations.
222	type='preind'
223	CALL readaerosol(name_aero(id_aero), type, filename, iyr, pi_klev_src, pt_ap, pt_b, pt_tmp, &
224	pi_psurf_year(:,:,id_aero), pi_load_year(:,:,id_aero))
225
226	! klev_src must be the same in both files.
227	! Also supposing pt_ap and pt_b to be the same in the 2 files without testing.
228	IF (pi_klev_src /= klev_src) THEN
229	WRITE(lunout,*) 'Error! All forcing files for the same aerosol must have the same vertical dimension'
230	WRITE(lunout,*) 'Aerosol : ', name_aero(id_aero)
231	CALL abort_gcm('readaerosol_interp','Differnt vertical axes in aerosol forcing files',1)
232	END IF
233
234	IF (.NOT. ALLOCATED(pi_var_year)) THEN
235	ALLOCATE(pi_var_year(klon, klev_src, 12, naero_spc), stat=ierr)
236	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 6',1)
237	END IF
238	pi_var_year(:,:,:,id_aero) = pt_tmp(:,:,:)
239
240	IF (debug) THEN
241	CALL writefield_phy('var_year_jan',var_year(:,:,1,id_aero),klev_src)
242	CALL writefield_phy('var_year_dec',var_year(:,:,12,id_aero),klev_src)
243	CALL writefield_phy('psurf_src',psurf_year(:,:,id_aero),1)
244	CALL writefield_phy('pi_psurf_src',pi_psurf_year(:,:,id_aero),1)
245	CALL writefield_phy('load_year_src',load_year(:,:,id_aero),1)
246	CALL writefield_phy('pi_load_year_src',pi_load_year(:,:,id_aero),1)
247	END IF
248
249	! Pointer no more useful, deallocate.
250	DEALLOCATE(pt_tmp)
251
252	! Test if vertical interpolation will be needed.
253	IF (psurf_year(1,1,id_aero)==not_valid .OR. pi_psurf_year(1,1,id_aero)==not_valid ) THEN
254	! Pressure=not_valid indicates old file format, see module readaerosol
255	vert_interp = .FALSE.
256
257	! If old file format, both psurf_year and pi_psurf_year must be not_valid
258	IF ( psurf_year(1,1,id_aero) /= pi_psurf_year(1,1,id_aero) ) THEN
259	WRITE(lunout,*) 'Warning! All forcing files for the same aerosol must have the same structure'
260	CALL abort_gcm('readaerosol_interp', 'The aerosol files have not the same format',1)
261	END IF
262
263	IF (klev /= klev_src) THEN
264	WRITE(lunout,*) 'Old format of aerosol file do not allowed vertical interpolation'
265	CALL abort_gcm('readaerosol_interp', 'Old aerosol file not possible',1)
266	END IF
267
268	ELSE
269	vert_interp = .TRUE.
270	END IF
271
272	! Calendar initialisation
273	!
274	DO i = 2, 13
275	month_len(i) = float(ioget_mon_len(year_cur, i-1))
276	CALL ymds2ju(year_cur, i-1, 1, 0.0, month_start(i))
277	ENDDO
278	month_len(1) = float(ioget_mon_len(year_cur-1, 12))
279	CALL ymds2ju(year_cur-1, 12, 1, 0.0, month_start(1))
280	month_len(14) = float(ioget_mon_len(year_cur+1, 1))
281	CALL ymds2ju(year_cur+1, 1, 1, 0.0, month_start(14))
282	month_mid(:) = month_start (:) + month_len(:)/2.
283
284	if (debug) then
285	write(lunout,*)' month_len = ',month_len
286	write(lunout,*)' month_mid = ',month_mid
287	endif
288
289	END IF ! IF ( (first .OR. iday==0) .AND. lnewday ) THEN
290
291	!****************************************************************************************
292	! - 2) Interpolate to the actual day.
293	! - 3) Interpolate to the model vertical grid.
294	!
295	!****************************************************************************************
296
297	IF (lnewday) THEN ! only if new day
298	!****************************************************************************************
299	! 2) Interpolate to the actual day
300	!
301	!****************************************************************************************
302	! Find which months and days to use for time interpolation
303	nbr_tsteps = 12
304	IF (nbr_tsteps == 12) then
305	IF (jDay < month_mid(im+1)) THEN
306	im2=im-1
307	day2 = month_mid(im2+1)
308	day1 = month_mid(im+1)
309	IF (im2 <= 0) THEN
310	! the month is january, thus the month before december
311	im2=12
312	END IF
313	ELSE
314	! the second half of the month
315	im2=im+1
316	day2 = month_mid(im+1)
317	day1 = month_mid(im2+1)
318	IF (im2 > 12) THEN
319	! the month is december, the following thus january
320	im2=1
321	ENDIF
322	END IF
323	ELSE IF (nbr_tsteps == 14) then
324	im = im + 1
325	IF (jDay < month_mid(im)) THEN
326	! in the first half of the month use month before and actual month
327	im2=im-1
328	day2 = month_mid(im2)
329	day1 = month_mid(im)
330	ELSE
331	! the second half of the month
332	im2=im+1
333	day2 = month_mid(im)
334	day1 = month_mid(im2)
335	END IF
336	ELSE
337	CALL abort_gcm('readaerosol_interp', 'number of months undefined',1)
338	ENDIF
339	if (debug) then
340	write(lunout,*)' jDay, day1, day2, im, im2 = ', jDay, day1, day2, im, im2
341	endif
342
343
344	! Time interpolation, still on vertical source grid
345	ALLOCATE(tmp1(klon,klev_src), tmp2(klon,klev_src),stat=ierr)
346	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 7',1)
347
348	ALLOCATE(pplay_src(klon,klev_src), stat=ierr)
349	IF (ierr /= 0) CALL abort_gcm('readaerosol_interp', 'pb in allocation 8',1)
350
351
352	DO k=1,klev_src
353	DO i=1,klon
354	tmp1(i,k) = &
355	var_year(i,k,im2,id_aero) - (jDay-day2)/(day1-day2) * &
356	(var_year(i,k,im2,id_aero) - var_year(i,k,im,id_aero))
357
358	tmp2(i,k) = &
359	pi_var_year(i,k,im2,id_aero) - (jDay-day2)/(day1-day2) * &
360	(pi_var_year(i,k,im2,id_aero) - pi_var_year(i,k,im,id_aero))
361	END DO
362	END DO
363
364	! Time interpolation for pressure at surface, still on vertical source grid
365	DO i=1,klon
366	psurf_day(i) = &
367	psurf_year(i,im2,id_aero) - (jDay-day2)/(day1-day2) * &
368	(psurf_year(i,im2,id_aero) - psurf_year(i,im,id_aero))
369
370	pi_psurf_day(i) = &
371	pi_psurf_year(i,im2,id_aero) - (jDay-day2)/(day1-day2) * &
372	(pi_psurf_year(i,im2,id_aero) - pi_psurf_year(i,im,id_aero))
373	END DO
374
375	! Time interpolation for the load, still on vertical source grid
376	DO i=1,klon
377	load_src(i) = &
378	load_year(i,im2,id_aero) - (jDay-day2)/(day1-day2) * &
379	(load_year(i,im2,id_aero) - load_year(i,im,id_aero))
380
381	pi_load_src(i) = &
382	pi_load_year(i,im2,id_aero) - (jDay-day2)/(day1-day2) * &
383	(pi_load_year(i,im2,id_aero) - pi_load_year(i,im,id_aero))
384	END DO
385
386	!****************************************************************************************
387	! 3) Interpolate to the model vertical grid (target grid)
388	!
389	!****************************************************************************************
390
391	IF (vert_interp) THEN
392
393	! - Interpolate variable tmp1 (on source grid) to var_day (on target grid)
394	!********************************************************************************
395	! a) calculate pression at vertical levels for the source grid using the
396	! hybrid-sigma coordinates ap and b and the surface pressure, variables from file.
397	DO k = 1, klev_src
398	DO i = 1, klon
399	pplay_src(i,k)= pt_ap(k) + pt_b(k)*psurf_day(i)
400	END DO
401	END DO
402
403	IF (debug) THEN
404	CALL writefield_phy('psurf_day_src',psurf_day(:),1)
405	CALL writefield_phy('pplay_src',pplay_src(:,:),klev_src)
406	CALL writefield_phy('pplay',pplay(:,:),klev)
407	CALL writefield_phy('day_src',tmp1,klev_src)
408	CALL writefield_phy('pi_day_src',tmp2,klev_src)
409	END IF
410
411	! b) vertical interpolation on pressure leveles
412	CALL pres2lev(tmp1(:,:), var_day(:,:,id_aero), klev_src, klev, pplay_src, pplay, &
413	1, klon, .FALSE.)
414
415	IF (debug) CALL writefield_phy('day_tgt',var_day(:,:,id_aero),klev)
416
417	! c) adjust to conserve total aerosol mass load in the vertical pillar
418	! Calculate the load in the actual pillar and compare with the load
419	! read from aerosol file.
420
421	! Find the pressure difference in each model layer
422	DO k = 1, klev
423	DO i = 1, klon
424	delp(i,k) = paprs(i,k) - paprs (i,k+1)
425	END DO
426	END DO
427
428	! Find the mass load in the actual pillar, on target grid
429	load_tgt(:) = 0.
430	DO k= 1, klev
431	DO i = 1, klon
432	zrho = pplay(i,k)/t_seri(i,k)/RD ! [kg/m3]
433	volm = var_day(i,k,id_aero)*1.E-9/zrho ! [kg/kg]
434	load_tgt(i) = load_tgt(i) + 1/RG * volm *delp(i,k)
435	END DO
436	END DO
437
438	! Adjust, uniform
439	DO k = 1, klev
440	DO i = 1, klon
441	var_day(i,k,id_aero) = var_day(i,k,id_aero)*load_src(i)/load_tgt(i)
442	END DO
443	END DO
444
445	IF (debug) THEN
446	load_tgt_test(:) = 0.
447	DO k= 1, klev
448	DO i = 1, klon
449	zrho = pplay(i,k)/t_seri(i,k)/RD ! [kg/m3]
450	volm = var_day(i,k,id_aero)*1.E-9/zrho ! [kg/kg]
451	load_tgt_test(i) = load_tgt_test(i) + 1/RG * volm*delp(i,k)
452	END DO
453	END DO
454
455	CALL writefield_phy('day_tgt2',var_day(:,:,id_aero),klev)
456	CALL writefield_phy('load_tgt',load_tgt(:),1)
457	CALL writefield_phy('load_tgt_test',load_tgt_test(:),1)
458	CALL writefield_phy('load_src',load_src(:),1)
459	END IF
460
461	! - Interpolate variable tmp2 (source grid) to pi_var_day (target grid)
462	!********************************************************************************
463	! a) calculate pression at vertical levels at source grid
464	DO k = 1, klev_src
465	DO i = 1, klon
466	pplay_src(i,k)= pt_ap(k) + pt_b(k)*pi_psurf_day(i)
467	END DO
468	END DO
469
470	IF (debug) THEN
471	CALL writefield_phy('pi_psurf_day_src',pi_psurf_day(:),1)
472	CALL writefield_phy('pi_pplay_src',pplay_src(:,:),klev_src)
473	END IF
474
475	! b) vertical interpolation on pressure leveles
476	CALL pres2lev(tmp2(:,:), pi_var_day(:,:,id_aero), klev_src, klev, pplay_src, pplay, &
477	1, klon, .FALSE.)
478
479	IF (debug) CALL writefield_phy('pi_day_tgt',pi_var_day(:,:,id_aero),klev)
480
481	! c) adjust to conserve total aerosol mass load in the vertical pillar
482	! Calculate the load in the actual pillar and compare with the load
483	! read from aerosol file.
484
485	! Find the load in the actual pillar, on target grid
486	load_tgt(:) = 0.
487	DO k = 1, klev
488	DO i = 1, klon
489	zrho = pplay(i,k)/t_seri(i,k)/RD ! [kg/m3]
490	volm = pi_var_day(i,k,id_aero)*1.E-9/zrho ! [kg/kg]
491	load_tgt(i) = load_tgt(i) + 1/RG * volm * delp(i,k)
492	END DO
493	END DO
494
495	DO k = 1, klev
496	DO i = 1, klon
497	pi_var_day(i,k,id_aero) = pi_var_day(i,k,id_aero)*pi_load_src(i)/load_tgt(i)
498	END DO
499	END DO
500
501	IF (debug) THEN
502	load_tgt_test(:) = 0.
503	DO k = 1, klev
504	DO i = 1, klon
505	zrho = pplay(i,k)/t_seri(i,k)/RD ! [kg/m3]
506	volm = pi_var_day(i,k,id_aero)*1.E-9/zrho ! [kg/kg]
507	load_tgt_test(i) = load_tgt_test(i) + 1/RG * volm * delp(i,k)
508	END DO
509	END DO
510	CALL writefield_phy('pi_day_tgt2',pi_var_day(:,:,id_aero),klev)
511	CALL writefield_phy('pi_load_tgt',load_tgt(:),1)
512	CALL writefield_phy('pi_load_tgt_test',load_tgt_test(:),1)
513	CALL writefield_phy('pi_load_src',pi_load_src(:),1)
514	END IF
515
516
517	ELSE ! No vertical interpolation done
518
519	var_day(:,:,id_aero) = tmp1(:,:)
520	pi_var_day(:,:,id_aero) = tmp2(:,:)
521
522	END IF ! vert_interp
523
524
525	! Deallocation
526	DEALLOCATE(tmp1, tmp2, pplay_src, stat=ierr)
527
528	!****************************************************************************************
529	! 4) Test for negative mass values
530	!
531	!****************************************************************************************
532	IF (MINVAL(var_day(:,:,id_aero)) < 0.) THEN
533	DO k=1,klev
534	DO i=1,klon
535	! Test for var_day
536	IF (var_day(i,k,id_aero) < 0.) THEN
537	IF (jDay-day2 < 0.) WRITE(lunout,*) 'jDay-day2=',jDay-day2
538	IF (var_year(i,k,im2,id_aero) - var_year(i,k,im,id_aero) < 0.) THEN
539	WRITE(lunout,*) trim(name_aero(id_aero)),'(i,k,im2)-', &
540	trim(name_aero(id_aero)),'(i,k,im)=', &
541	var_year(i,k,im2,id_aero) - var_year(i,k,im,id_aero)
542	END IF
543	WRITE(lunout,*) 'stop for aerosol : ',name_aero(id_aero)
544	WRITE(lunout,*) 'day1, day2, jDay = ', day1, day2, jDay
545	CALL abort_gcm('readaerosol_interp','Error in interpolation 1',1)
546	END IF
547	END DO
548	END DO
549	END IF
550
551	IF (MINVAL(pi_var_day(:,:,id_aero)) < 0. ) THEN
552	DO k=1, klev
553	DO i=1,klon
554	! Test for pi_var_day
555	IF (pi_var_day(i,k,id_aero) < 0.) THEN
556	IF (jDay-day2 < 0.) WRITE(lunout,*) 'jDay-day2=',jDay-day2
557	IF (pi_var_year(i,k,im2,id_aero) - pi_var_year(i,k,im,id_aero) < 0.) THEN
558	WRITE(lunout,*) trim(name_aero(id_aero)),'(i,k,im2)-', &
559	trim(name_aero(id_aero)),'(i,k,im)=', &
560	pi_var_year(i,k,im2,id_aero) - pi_var_year(i,k,im,id_aero)
561	END IF
562
563	WRITE(lunout,*) 'stop for aerosol : ',name_aero(id_aero)
564	CALL abort_gcm('readaerosol_interp','Error in interpolation 2',1)
565	END IF
566	END DO
567	END DO
568	END IF
569
570	END IF ! lnewday
571
572	!****************************************************************************************
573	! Copy output from saved variables
574	!
575	!****************************************************************************************
576
577	mass_out(:,:) = var_day(:,:,id_aero)
578	pi_mass_out(:,:) = pi_var_day(:,:,id_aero)
579
580	END SUBROUTINE readaerosol_interp

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