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readaerosolstrato1_rrtm.F90 @ 4771

Last change on this file since 4771 was 4727, checked in by idelkadi, 13 months ago
Merged trunk changes -r4488:4726 LMDZ_ECRad branch
File size: 10.2 KB

Line
1	!
2	! $Id: readaerosolstrato1_rrtm.F90 2526 2016-05-26 22:13:40Z oboucher $
3	!
4
5	SUBROUTINE readaerosolstrato1_rrtm(debut)
6
7	USE netcdf95, ONLY: nf95_close, nf95_gw_var, nf95_inq_dimid, &
8	nf95_inq_varid, nf95_open
9	USE netcdf, ONLY: nf90_get_var, nf90_noerr, nf90_nowrite
10
11	USE phys_cal_mod, ONLY : mth_cur
12	USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat, klon_glo, grid2dTo1d_glo, grid_type, unstructured
13	USE mod_phys_lmdz_para
14	USE phys_state_var_mod
15	USE phys_local_var_mod
16	USE aero_mod
17	USE dimphy
18	USE YOERAD, ONLY : NLW
19	USE YOMCST
20	USE lmdz_xios
21
22	IMPLICIT NONE
23
24	! Variable input
25	LOGICAL debut
26
27	! Variables locales
28	INTEGER n_lat ! number of latitudes in the input data
29	INTEGER n_lon ! number of longitudes in the input data
30	INTEGER n_lev ! number of levels in the input data
31	INTEGER n_month ! number of months in the input data
32	REAL, ALLOCATABLE:: latitude(:)
33	REAL, ALLOCATABLE:: longitude(:)
34	REAL, ALLOCATABLE:: time(:)
35	REAL, ALLOCATABLE:: lev(:)
36	INTEGER k, band, wave, i
37	INTEGER, SAVE :: mth_pre=1
38	!$OMP THREADPRIVATE(mth_pre)
39
40	REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: tau_aer_strat
41	!$OMP THREADPRIVATE(tau_aer_strat)
42
43	! Champs reconstitues
44	REAL, ALLOCATABLE:: tauaerstrat(:, :, :, :)
45	REAL, ALLOCATABLE:: tauaerstrat_mois(:, :, :)
46	REAL, ALLOCATABLE:: tauaerstrat_mois_glo(:, :)
47	REAL, ALLOCATABLE:: tauaerstrat_mpi(:, :)
48
49	! For NetCDF:
50	INTEGER ncid_in ! IDs for input files
51	INTEGER varid, ncerr
52
53	! Stratospheric aerosols optical properties
54	! alpha_sw_strat over the 6 bands is normalised by the 550 nm extinction coefficient
55	REAL, DIMENSION(nbands_sw_rrtm) :: alpha_sw_strat, piz_sw_strat, cg_sw_strat
56	DATA alpha_sw_strat/0.8545564, 0.8451642, 0.9821724, 0.8145110, 0.3073565, 7.7966176E-02/
57	DATA cg_sw_strat /0.6997170, 0.6810035, 0.7403592, 0.7562674, 0.6676504, 0.3478689/
58	DATA piz_sw_strat /0.9999998, 0.9999998, 1.000000000, 0.9999958, 0.9977155, 0.4510679/
59	!
60	!--diagnostics AOD in the SW
61	! alpha_sw_strat_wave is not normalised by the 550 nm extinction coefficient
62	REAL, DIMENSION(nwave_sw) :: alpha_sw_strat_wave
63	DATA alpha_sw_strat_wave/3.708007,4.125824,4.136584,3.887478,3.507738/
64	!
65	!--diagnostics AOD in the LW at 10 um (not normalised by the 550 nm ext coefficient
66	REAL :: alpha_lw_strat_wave(nwave_lw)
67	DATA alpha_lw_strat_wave/0.2746812/
68	!
69	REAL, DIMENSION(nbands_lw_rrtm) :: alpha_lw_abs_rrtm
70	DATA alpha_lw_abs_rrtm/ 8.8340312E-02, 6.9856711E-02, 6.2652975E-02, 5.7188231E-02, &
71	6.3157059E-02, 5.5072524E-02, 5.0571125E-02, 0.1349073, &
72	0.1381676, 9.6506312E-02, 5.1312990E-02, 2.4256418E-02, &
73	2.7191756E-02, 3.3862915E-02, 1.6132960E-02, 1.4275438E-02/ ! calculated with Mie_SW_LW_RRTM_V2.4 (bimodal, corrected)
74	! for r_0=/0.13E-6, 0.41E-6/ m, sigma_g=/1.26, 1.30/
75	! order: increasing wavelength!
76	!--------------------------------------------------------
77
78	IF (.not.ALLOCATED(tau_aer_strat)) ALLOCATE(tau_aer_strat(klon,klev))
79
80	!--we only read monthly strat aerosol data
81	IF (debut.OR.mth_cur.NE.mth_pre) THEN
82
83	!--only root reads the data
84	IF (is_mpi_root.AND.is_omp_root) THEN
85
86	IF (nbands_sw_rrtm.NE.6) THEN
87	print *,'nbands_sw_rrtm doit etre egal a 6 dans readaerosolstrat_rrtm'
88	STOP
89	ENDIF
90
91	CALL nf95_open("taustrat.nc", nf90_nowrite, ncid_in)
92
93	CALL nf95_inq_varid(ncid_in, "LEV", varid)
94	CALL nf95_gw_var(ncid_in, varid, lev)
95	n_lev = size(lev)
96	IF (n_lev.NE.klev) THEN
97	print *,'Le nombre de niveaux n est pas egal a klev'
98	STOP
99	ENDIF
100
101	CALL nf95_inq_varid(ncid_in, "LAT", varid)
102	CALL nf95_gw_var(ncid_in, varid, latitude)
103	n_lat = size(latitude)
104	print *, 'LAT aerosol strato=', n_lat, latitude
105
106	IF (grid_type/=unstructured) THEN
107	IF (n_lat.NE.nbp_lat) THEN
108	print *,'Le nombre de lat n est pas egal a nbp_lat'
109	STOP
110	ENDIF
111	ENDIF
112
113	CALL nf95_inq_varid(ncid_in, "LON", varid)
114	CALL nf95_gw_var(ncid_in, varid, longitude)
115	n_lon = size(longitude)
116	print *, 'LON aerosol strato=', n_lon, longitude
117
118	IF (grid_type/=unstructured) THEN
119	IF (n_lon.NE.nbp_lon) THEN
120	print *,'Le nombre de lon n est pas egal a nbp_lon'
121	STOP
122	ENDIF
123	ENDIF
124
125
126	CALL nf95_inq_varid(ncid_in, "TIME", varid)
127	CALL nf95_gw_var(ncid_in, varid, time)
128	n_month = size(time)
129	print *, 'TIME aerosol strato=', n_month, time
130	IF (n_month.NE.12) THEN
131	print *,'Le nombre de month n est pas egal a 12'
132	STOP
133	ENDIF
134
135	ALLOCATE(tauaerstrat(n_lon, n_lat, n_lev, n_month))
136	ALLOCATE(tauaerstrat_mois(n_lon, n_lat, n_lev))
137	ALLOCATE(tauaerstrat_mois_glo(klon_glo, n_lev))
138
139	!--reading stratospheric AOD at 550 nm
140	CALL nf95_inq_varid(ncid_in, "TAUSTRAT", varid)
141	ncerr = nf90_get_var(ncid_in, varid, tauaerstrat)
142	print *,'code erreur readaerosolstrato=', ncerr, varid
143
144	CALL nf95_close(ncid_in)
145
146	!---select the correct month
147	IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN
148	print *,'probleme avec le mois dans readaerosolstrat =', mth_cur
149	ENDIF
150	tauaerstrat_mois(:,:,:) = tauaerstrat(:,:,:,mth_cur)
151
152	!---reduce to a klon_glo grid
153	CALL grid2dTo1d_glo(tauaerstrat_mois,tauaerstrat_mois_glo)
154
155	ELSE
156	ALLOCATE(tauaerstrat_mois(0,0,0))
157	ENDIF !--is_mpi_root and is_omp_root
158
159	!$OMP BARRIER
160
161	!--keep memory of previous month
162	mth_pre=mth_cur
163
164	!--scatter on all proc
165
166	IF (grid_type==unstructured) THEN
167	IF (is_omp_master) THEN
168	ALLOCATE(tauaerstrat_mpi(klon_mpi,klev))
169	CALL xios_send_field("taustrat_in",tauaerstrat_mois)
170	CALL xios_recv_field("taustrat_out",tauaerstrat_mpi)
171	ELSE
172	ALLOCATE(tauaerstrat_mpi(0,0))
173	ENDIF
174	CALL scatter_omp(tauaerstrat_mpi,tau_aer_strat)
175	ELSE
176	CALL scatter(tauaerstrat_mois_glo,tau_aer_strat)
177	ENDIF
178
179	IF (is_mpi_root.AND.is_omp_root) THEN
180	!
181	DEALLOCATE(tauaerstrat)
182	DEALLOCATE(tauaerstrat_mois)
183	DEALLOCATE(tauaerstrat_mois_glo)
184	!
185	ENDIF !--is_mpi_root and is_omp_root
186
187	!$OMP BARRIER
188
189	ENDIF !--debut ou nouveau mois
190
191	!--total vertical aod at the 5 SW wavelengths
192	DO wave=1, nwave_sw
193	DO k=1, klev
194	tausum_aero(:,wave,id_STRAT_phy)=tausum_aero(:,wave,id_STRAT_phy)+ &
195	tau_aer_strat(:,k)*alpha_sw_strat_wave(wave)/alpha_sw_strat_wave(2)
196	ENDDO
197	ENDDO
198
199	!--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones
200	DO band=1, nbands_sw_rrtm
201	!--anthropogenic aerosols bands 1 to nbands_sw_rrtm
202	cg_aero_sw_rrtm(:,:,2,band) = ( cg_aero_sw_rrtm(:,:,2,band)piz_aero_sw_rrtm(:,:,2,band)tau_aero_sw_rrtm(:,:,2,band) + &
203	cg_sw_strat(band)piz_sw_strat(band)alpha_sw_strat(band)*tau_aer_strat(:,:) ) / &
204	MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
205	piz_sw_strat(band)alpha_sw_strat(band)tau_aer_strat(:,:), 1.e-15 )
206	piz_aero_sw_rrtm(:,:,2,band) = ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + &
207	piz_sw_strat(band)alpha_sw_strat(band)tau_aer_strat(:,:) ) / &
208	MAX( tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 )
209	tau_aero_sw_rrtm(:,:,2,band) = tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:)
210	!--natural aerosols bands 1 to nbands_sw_rrtm
211	cg_aero_sw_rrtm(:,:,1,band) = ( cg_aero_sw_rrtm(:,:,1,band)piz_aero_sw_rrtm(:,:,1,band)tau_aero_sw_rrtm(:,:,1,band) + &
212	cg_sw_strat(band)piz_sw_strat(band)alpha_sw_strat(band)*tau_aer_strat(:,:) ) / &
213	MAX( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + &
214	piz_sw_strat(band)alpha_sw_strat(band)tau_aer_strat(:,:), 1.e-15 )
215	piz_aero_sw_rrtm(:,:,1,band) = ( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + &
216	piz_sw_strat(band)alpha_sw_strat(band)tau_aer_strat(:,:) ) / &
217	MAX( tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:),1.e-15 )
218	tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:)
219	!--no stratospheric aerosol in index 1 for these tests
220	! cg_aero_sw_rrtm(:,:,1,band) = cg_aero_sw_rrtm(:,:,1,band)
221	! piz_aero_sw_rrtm(:,:,1,band) = piz_aero_sw_rrtm(:,:,1,band)
222	! tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band)
223	ENDDO
224
225	!--stratospheric AOD in LW
226	IF (nbands_lw_rrtm .NE. NLW) then
227	print*, 'different values for NLW (=',NLW,') and nbands_lw_rrtm (=', nbands_lw_rrtm, ')'
228	STOP
229	ENDIF
230
231	!--total vertical aod at the 1 LW wavelength
232	DO wave=1, nwave_lw
233	DO k=1, klev
234	tausum_aero(:,nwave_sw+wave,id_STRAT_phy)=tausum_aero(:,nwave_sw+wave,id_STRAT_phy)+ &
235	tau_aer_strat(:,k)*alpha_lw_strat_wave(wave)/alpha_sw_strat_wave(2)
236	ENDDO
237	ENDDO
238
239	DO band=1, nbands_lw_rrtm
240	tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:)
241	tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:)
242	!--no stratospheric aerosols in index 1 for these tests
243	! tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band)
244	ENDDO
245
246	!--default SSA value if there is no aerosol
247	!--to avoid 0 values that seems to cause some problem to RRTM
248	WHERE (tau_aero_sw_rrtm.LT.1.e-14)
249	piz_aero_sw_rrtm = 1.0
250	ENDWHERE
251
252	!--in principle this should not be necessary
253	!--as these variables have min values already but just in case
254	!--put 1e-15 min value to both SW and LW AOD
255	tau_aero_sw_rrtm = MAX(tau_aero_sw_rrtm,1.e-15)
256	tau_aero_lw_rrtm = MAX(tau_aero_lw_rrtm,1.e-15)
257
258	END SUBROUTINE readaerosolstrato1_rrtm

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