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readaerosolstrato2_rrtm.F90 @ 3607

Last change on this file since 3607 was 3427, checked in by oboucher, 6 years ago
Correcting a bug for strat aerosol forcing diagnostics
File size: 15.5 KB

Line
1	!
2	! $Id: readaerosolstrato2_rrtm.F90 2526 2016-05-26 22:13:40Z oboucher $
3	!
4	SUBROUTINE readaerosolstrato2_rrtm(debut, ok_volcan)
5
6	USE netcdf95, ONLY: nf95_close, nf95_gw_var, nf95_inq_dimid, &
7	nf95_inq_varid, nf95_open
8	USE netcdf, ONLY: nf90_get_var, nf90_noerr, nf90_nowrite
9
10	USE phys_cal_mod, ONLY : mth_cur
11	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat, klon_glo, grid2dTo1d_glo
12	USE mod_phys_lmdz_mpi_data, ONLY : is_mpi_root
13	USE mod_phys_lmdz_omp_data, ONLY : is_omp_root
14	USE mod_phys_lmdz_para
15	USE phys_state_var_mod
16	USE phys_local_var_mod
17	USE aero_mod
18	USE dimphy
19	USE YOERAD, ONLY : NLW
20	USE YOMCST
21
22	IMPLICIT NONE
23
24	INCLUDE "clesphys.h"
25
26	CHARACTER (len = 80) :: abort_message
27	CHARACTER (LEN=20) :: modname = 'readaerosolstrato2'
28
29	! Variable input
30	LOGICAL, INTENT(IN) :: debut
31	LOGICAL, INTENT(IN) :: ok_volcan !activate volcanic diags
32
33	! Variables locales
34	INTEGER n_lat ! number of latitudes in the input data
35	INTEGER n_lon ! number of longitudes
36	INTEGER n_lev ! number of levels in the input data
37	INTEGER n_month ! number of months in the input data
38	INTEGER n_wav ! number of wavelengths in the input data
39	REAL, POINTER:: latitude(:)
40	REAL, POINTER:: time(:)
41	REAL, POINTER:: lev(:)
42	REAL, POINTER:: wav(:)
43	INTEGER i,k,wave,band
44	INTEGER, SAVE :: mth_pre=1
45	!$OMP THREADPRIVATE(mth_pre)
46
47	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: tau_aer_strat
48	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: piz_aer_strat
49	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: cg_aer_strat
50	REAL, ALLOCATABLE, DIMENSION(:,:,:), SAVE :: taulw_aer_strat
51	!$OMP THREADPRIVATE(tau_aer_strat,piz_aer_strat,cg_aer_strat,taulw_aer_strat)
52
53	! Champs reconstitues
54	REAL, ALLOCATABLE:: tauaerstrat(:, :, :, :)
55	REAL, ALLOCATABLE:: pizaerstrat(:, :, :, :)
56	REAL, ALLOCATABLE:: cgaerstrat(:, :, :, :)
57	REAL, ALLOCATABLE:: taulwaerstrat(:, :, :, :)
58
59	REAL, ALLOCATABLE:: tauaerstrat_mois(:, :, :, :)
60	REAL, ALLOCATABLE:: pizaerstrat_mois(:, :, :, :)
61	REAL, ALLOCATABLE:: cgaerstrat_mois(:, :, :, :)
62	REAL, ALLOCATABLE:: taulwaerstrat_mois(:, :, :, :)
63
64	REAL, ALLOCATABLE:: tauaerstrat_mois_glo(:, :, :)
65	REAL, ALLOCATABLE:: pizaerstrat_mois_glo(:, :, :)
66	REAL, ALLOCATABLE:: cgaerstrat_mois_glo(:, :, :)
67	REAL, ALLOCATABLE:: taulwaerstrat_mois_glo(:, :, :)
68
69	! For NetCDF:
70	INTEGER ncid_in ! IDs for input files
71	INTEGER varid, ncerr
72
73	!--------------------------------------------------------
74
75	IF (.not.ALLOCATED(tau_aer_strat)) ALLOCATE(tau_aer_strat(klon,klev,NSW))
76	IF (.not.ALLOCATED(piz_aer_strat)) ALLOCATE(piz_aer_strat(klon,klev,NSW))
77	IF (.not.ALLOCATED(cg_aer_strat)) ALLOCATE(cg_aer_strat(klon,klev,NSW))
78
79	IF (.not.ALLOCATED(taulw_aer_strat)) ALLOCATE(taulw_aer_strat(klon,klev,NLW))
80
81	!--we only read monthly strat aerosol data
82	IF (debut.OR.mth_cur.NE.mth_pre) THEN
83
84	!--only root reads the data
85	IF (is_mpi_root.AND.is_omp_root) THEN
86
87	!--check mth_cur
88	IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN
89	print *,'probleme avec le mois dans readaerosolstrat =', mth_cur
90	ENDIF
91
92	!--initialize n_lon as input data is 2D (lat-alt) only
93	n_lon = nbp_lon
94
95	!--Starts with SW optical properties
96
97	CALL nf95_open("tauswstrat.2D.nc", nf90_nowrite, ncid_in)
98
99	CALL nf95_inq_varid(ncid_in, "LEV", varid)
100	CALL nf95_gw_var(ncid_in, varid, lev)
101	n_lev = size(lev)
102	IF (n_lev.NE.klev) THEN
103	abort_message='Le nombre de niveaux n est pas egal a klev'
104	CALL abort_physic(modname,abort_message,1)
105	ENDIF
106
107	CALL nf95_inq_varid(ncid_in, "LAT", varid)
108	CALL nf95_gw_var(ncid_in, varid, latitude)
109	n_lat = size(latitude)
110	IF (n_lat.NE.nbp_lat) THEN
111	print *, 'latitude=', n_lat, nbp_lat
112	abort_message='Le nombre de lat n est pas egal a nbp_lat'
113	CALL abort_physic(modname,abort_message,1)
114	ENDIF
115
116	CALL nf95_inq_varid(ncid_in, "TIME", varid)
117	CALL nf95_gw_var(ncid_in, varid, time)
118	n_month = size(time)
119	IF (n_month.NE.12) THEN
120	abort_message='Le nombre de month n est pas egal a 12'
121	CALL abort_physic(modname,abort_message,1)
122	ENDIF
123
124	CALL nf95_inq_varid(ncid_in, "WAV", varid)
125	CALL nf95_gw_var(ncid_in, varid, wav)
126	n_wav = size(wav)
127	print *, 'WAV aerosol strato=', n_wav, wav
128	IF (n_wav.NE.NSW) THEN
129	abort_message='Le nombre de wav n est pas egal a NSW'
130	CALL abort_physic(modname,abort_message,1)
131	ENDIF
132
133	ALLOCATE(tauaerstrat(n_lat, n_lev, n_wav, n_month))
134	ALLOCATE(pizaerstrat(n_lat, n_lev, n_wav, n_month))
135	ALLOCATE(cgaerstrat(n_lat, n_lev, n_wav, n_month))
136
137	ALLOCATE(tauaerstrat_mois(n_lon, n_lat, n_lev, n_wav))
138	ALLOCATE(pizaerstrat_mois(n_lon, n_lat, n_lev, n_wav))
139	ALLOCATE(cgaerstrat_mois(n_lon, n_lat, n_lev, n_wav))
140
141	ALLOCATE(tauaerstrat_mois_glo(klon_glo, n_lev, n_wav))
142	ALLOCATE(pizaerstrat_mois_glo(klon_glo, n_lev, n_wav))
143	ALLOCATE(cgaerstrat_mois_glo(klon_glo, n_lev, n_wav))
144
145	!--reading stratospheric aerosol tau per layer
146	CALL nf95_inq_varid(ncid_in, "TAU_SUN", varid)
147	ncerr = nf90_get_var(ncid_in, varid, tauaerstrat)
148	print *,'code erreur readaerosolstrato=', ncerr, varid
149
150	!--reading stratospheric aerosol omega per layer
151	CALL nf95_inq_varid(ncid_in, "OME_SUN", varid)
152	ncerr = nf90_get_var(ncid_in, varid, pizaerstrat)
153	print *,'code erreur readaerosolstrato=', ncerr, varid
154
155	!--reading stratospheric aerosol g per layer
156	CALL nf95_inq_varid(ncid_in, "GGG_SUN", varid)
157	ncerr = nf90_get_var(ncid_in, varid, cgaerstrat)
158	print *,'code erreur readaerosolstrato sw=', ncerr, varid
159
160	CALL nf95_close(ncid_in)
161
162	!--select the correct month
163	!--and copy into 1st longitude
164	tauaerstrat_mois(1,:,:,:) = tauaerstrat(:,:,:,mth_cur)
165	pizaerstrat_mois(1,:,:,:) = pizaerstrat(:,:,:,mth_cur)
166	cgaerstrat_mois(1,:,:,:) = cgaerstrat(:,:,:,mth_cur)
167
168	!--copy longitudes
169	DO i=2, n_lon
170	tauaerstrat_mois(i,:,:,:) = tauaerstrat_mois(1,:,:,:)
171	pizaerstrat_mois(i,:,:,:) = pizaerstrat_mois(1,:,:,:)
172	cgaerstrat_mois(i,:,:,:) = cgaerstrat_mois(1,:,:,:)
173	ENDDO
174
175	!---reduce to a klon_glo grid
176	DO band=1, NSW
177	CALL grid2dTo1d_glo(tauaerstrat_mois(:,:,:,band),tauaerstrat_mois_glo(:,:,band))
178	CALL grid2dTo1d_glo(pizaerstrat_mois(:,:,:,band),pizaerstrat_mois_glo(:,:,band))
179	CALL grid2dTo1d_glo(cgaerstrat_mois(:,:,:,band),cgaerstrat_mois_glo(:,:,band))
180	ENDDO
181
182	!--Now LW optical properties
183	!
184	CALL nf95_open("taulwstrat.2D.nc", nf90_nowrite, ncid_in)
185
186	CALL nf95_inq_varid(ncid_in, "LEV", varid)
187	CALL nf95_gw_var(ncid_in, varid, lev)
188	n_lev = size(lev)
189	IF (n_lev.NE.klev) THEN
190	abort_message='Le nombre de niveaux n est pas egal a klev'
191	CALL abort_physic(modname,abort_message,1)
192	ENDIF
193
194	CALL nf95_inq_varid(ncid_in, "LAT", varid)
195	CALL nf95_gw_var(ncid_in, varid, latitude)
196	n_lat = size(latitude)
197	IF (n_lat.NE.nbp_lat) THEN
198	abort_message='Le nombre de lat n est pas egal a nbp_lat'
199	CALL abort_physic(modname,abort_message,1)
200	ENDIF
201
202	CALL nf95_inq_varid(ncid_in, "TIME", varid)
203	CALL nf95_gw_var(ncid_in, varid, time)
204	n_month = size(time)
205	IF (n_month.NE.12) THEN
206	abort_message='Le nombre de month n est pas egal a 12'
207	CALL abort_physic(modname,abort_message,1)
208	ENDIF
209
210	CALL nf95_inq_varid(ncid_in, "WAV", varid)
211	CALL nf95_gw_var(ncid_in, varid, wav)
212	n_wav = size(wav)
213	print *, 'WAV aerosol strato=', n_wav, wav
214	IF (n_wav.NE.NLW) THEN
215	abort_message='Le nombre de wav n est pas egal a NLW'
216	CALL abort_physic(modname,abort_message,1)
217	ENDIF
218
219	ALLOCATE(taulwaerstrat(n_lat, n_lev, n_wav, n_month))
220	ALLOCATE(taulwaerstrat_mois(n_lon, n_lat, n_lev, n_wav))
221	ALLOCATE(taulwaerstrat_mois_glo(klon_glo, n_lev, n_wav))
222
223	!--reading stratospheric aerosol lw tau per layer
224	CALL nf95_inq_varid(ncid_in, "TAU_EAR", varid)
225	ncerr = nf90_get_var(ncid_in, varid, taulwaerstrat)
226	print *,'code erreur readaerosolstrato lw=', ncerr, varid
227
228	CALL nf95_close(ncid_in)
229
230	!--select the correct month
231	!--and copy into 1st longitude
232	taulwaerstrat_mois(1,:,:,:) = taulwaerstrat(:,:,:,mth_cur)
233	!--copy longitudes
234	DO i=2, n_lon
235	taulwaerstrat_mois(i,:,:,:) = taulwaerstrat_mois(1,:,:,:)
236	ENDDO
237
238	!---reduce to a klon_glo grid
239	DO band=1, NLW
240	CALL grid2dTo1d_glo(taulwaerstrat_mois(:,:,:,band),taulwaerstrat_mois_glo(:,:,band))
241	ENDDO
242
243	ELSE !--proc other than mpi_root and omp_root
244	!--dummy allocation needed for debug mode
245
246	ALLOCATE(tauaerstrat_mois_glo(1,1,1))
247	ALLOCATE(pizaerstrat_mois_glo(1,1,1))
248	ALLOCATE(cgaerstrat_mois_glo(1,1,1))
249	ALLOCATE(taulwaerstrat_mois_glo(1,1,1))
250
251	ENDIF !--is_mpi_root and is_omp_root
252
253	!$OMP BARRIER
254
255	!--keep memory of previous month
256	mth_pre=mth_cur
257
258	!--scatter on all proc
259	CALL scatter(tauaerstrat_mois_glo,tau_aer_strat)
260	CALL scatter(pizaerstrat_mois_glo,piz_aer_strat)
261	CALL scatter(cgaerstrat_mois_glo,cg_aer_strat)
262	CALL scatter(taulwaerstrat_mois_glo,taulw_aer_strat)
263
264	IF (is_mpi_root.AND.is_omp_root) THEN
265	!
266	DEALLOCATE(tauaerstrat, pizaerstrat, cgaerstrat)
267	DEALLOCATE(tauaerstrat_mois, pizaerstrat_mois, cgaerstrat_mois)
268	DEALLOCATE(taulwaerstrat,taulwaerstrat_mois)
269	!
270	ENDIF !--is_mpi_root and is_omp_root
271
272	DEALLOCATE(tauaerstrat_mois_glo,pizaerstrat_mois_glo,cgaerstrat_mois_glo)
273	DEALLOCATE(taulwaerstrat_mois_glo)
274
275	!$OMP BARRIER
276
277	ENDIF !--debut ou nouveau mois
278
279	!--total vertical aod at the 5 SW wavelengths
280	!--for now use band 3 AOD into all 5 wavelengths
281	!--it is only a reasonable approximation for 550 nm (wave=2)
282	band=3
283	DO i=1, klon
284	DO k=1, klev
285	IF (stratomask(i,k).GT.0.999999) THEN
286	DO wave=1, nwave_sw
287	tausum_aero(i,wave,id_STRAT_phy)=tausum_aero(i,wave,id_STRAT_phy)+tau_aer_strat(i,k,band)
288	ENDDO
289	ENDIF
290	ENDDO
291	ENDDO
292
293	IF (.NOT. ok_volcan) THEN
294	!
295	!--this is the default case
296	!--stratospheric aerosols are added to both index 2 and 1 for double radiation calls
297	!--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones
298	DO band=1, NSW
299	WHERE (stratomask.GT.0.999999)
300	!--strat aerosols are added to index 2 : natural and anthropogenic aerosols for bands 1 to NSW
301	cg_aero_sw_rrtm(:,:,2,band) = ( cg_aero_sw_rrtm(:,:,2,band)piz_aero_sw_rrtm(:,:,2,band)tau_aero_sw_rrtm(:,:,2,band) + &
302	cg_aer_strat(:,:,band)piz_aer_strat(:,:,band)tau_aer_strat(:,:,band) ) / &
303	MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
304	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band), 1.e-15 )
305	piz_aero_sw_rrtm(:,:,2,band) = ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
306	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band) ) / &
307	MAX( tau_aero_sw_rrtm(:,:,2,band) + tau_aer_strat(:,:,band), 1.e-15 )
308	tau_aero_sw_rrtm(:,:,2,band) = tau_aero_sw_rrtm(:,:,2,band) + tau_aer_strat(:,:,band)
309	!--strat aerosols are added to index 1 : natural aerosols only for bands 1 to NSW
310	cg_aero_sw_rrtm(:,:,1,band) = ( cg_aero_sw_rrtm(:,:,1,band)piz_aero_sw_rrtm(:,:,1,band)tau_aero_sw_rrtm(:,:,1,band) + &
311	cg_aer_strat(:,:,band)piz_aer_strat(:,:,band)tau_aer_strat(:,:,band) ) / &
312	MAX( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + &
313	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band), 1.e-15 )
314	piz_aero_sw_rrtm(:,:,1,band) = ( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + &
315	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band) ) / &
316	MAX( tau_aero_sw_rrtm(:,:,1,band) + tau_aer_strat(:,:,band), 1.e-15 )
317	tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) + tau_aer_strat(:,:,band)
318	ENDWHERE
319	ENDDO
320	!
321	ELSE
322	!
323	!--this is the VOLMIP case
324	!--stratospheric aerosols are only added to index 2 in this case
325	!--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones
326	DO band=1, NSW
327	WHERE (stratomask.GT.0.999999)
328	!--strat aerosols are added to index 2 : natural and anthropogenic aerosols for bands 1 to NSW
329	cg_aero_sw_rrtm(:,:,2,band) = ( cg_aero_sw_rrtm(:,:,2,band)piz_aero_sw_rrtm(:,:,2,band)tau_aero_sw_rrtm(:,:,2,band) + &
330	cg_aer_strat(:,:,band)piz_aer_strat(:,:,band)tau_aer_strat(:,:,band) ) / &
331	MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
332	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band), 1.e-15 )
333	piz_aero_sw_rrtm(:,:,2,band) = ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
334	piz_aer_strat(:,:,band)*tau_aer_strat(:,:,band) ) / &
335	MAX( tau_aero_sw_rrtm(:,:,2,band) + tau_aer_strat(:,:,band), 1.e-15 )
336	tau_aero_sw_rrtm(:,:,2,band) = tau_aero_sw_rrtm(:,:,2,band) + tau_aer_strat(:,:,band)
337	ENDWHERE
338	ENDDO
339	ENDIF
340
341	!--total vertical aod at 10 um
342	!--this is approximated from band 7 of RRTM
343	band=7
344	DO i=1, klon
345	DO k=1, klev
346	IF (stratomask(i,k).GT.0.999999) THEN
347	DO wave=1, nwave_lw
348	tausum_aero(i,nwave_sw+wave,id_STRAT_phy)=tausum_aero(i,nwave_sw+wave,id_STRAT_phy)+taulw_aer_strat(i,k,band)
349	ENDDO
350	ENDIF
351	ENDDO
352	ENDDO
353
354	IF (.NOT. ok_volcan) THEN
355	!--this is the default case
356	!--stratospheric aerosols are added to both index 2 and 1
357	DO band=1, NLW
358	WHERE (stratomask.GT.0.999999)
359	tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + taulw_aer_strat(:,:,band)
360	tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) + taulw_aer_strat(:,:,band)
361	ENDWHERE
362	ENDDO
363	!
364	ELSE
365	!
366	!--this is the VOLMIP case
367	DO band=1, NLW
368	!--stratospheric aerosols are not added to index 1
369	!--and we copy index 2 in index 1 because we want the same dust aerosol LW properties as above
370	tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,2,band)
371	!
372	WHERE (stratomask.GT.0.999999)
373	!--stratospheric aerosols are only added to index 2
374	tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + taulw_aer_strat(:,:,band)
375	ENDWHERE
376	ENDDO
377	ENDIF
378
379	!--default SSA value if there is no aerosol
380	!--to avoid 0 values that seems to cause some problem to RRTM
381	WHERE (tau_aero_sw_rrtm.LT.1.e-14)
382	piz_aero_sw_rrtm = 1.0
383	ENDWHERE
384
385	!--in principle this should not be necessary
386	!--as these variables have min values already but just in case
387	!--put 1e-15 min value to both SW and LW AOD
388	tau_aero_sw_rrtm = MAX(tau_aero_sw_rrtm,1.e-15)
389	tau_aero_lw_rrtm = MAX(tau_aero_lw_rrtm,1.e-15)
390
391	END SUBROUTINE readaerosolstrato2_rrtm

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