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readaerosolstrato2_rrtm.F90 @ 2729

Last change on this file since 2729 was 2729, checked in by Laurent Fairhead, 8 years ago
Merged trunk changes r2719:2727 into testing branch
File size: 13.7 KB

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

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