source: LMDZ6/branches/LMDZ_ECRad/libf/phylmd/readaerosolstrato.F90 @ 5411

Last change on this file since 5411 was 4727, checked in by idelkadi, 14 months ago

Merged trunk changes -r4488:4726 LMDZ_ECRad branch
  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
File size: 7.8 KB
Line 
1subroutine readaerosolstrato(debut)
2
3    use netcdf95, only: nf95_close, nf95_gw_var, nf95_inq_dimid, &
4                        nf95_inq_varid, nf95_open
5    use netcdf, only: nf90_get_var, nf90_noerr, nf90_nowrite
6
7    USE phys_cal_mod, ONLY : mth_cur
8    USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat, klon_glo, &
9                                 grid2dto1d_glo, grid_type, unstructured
10    USE mod_phys_lmdz_mpi_data, ONLY :  is_mpi_root
11    USE mod_phys_lmdz_omp_data, ONLY :  is_omp_root
12    USE mod_phys_lmdz_para
13    USE phys_state_var_mod
14    USE phys_local_var_mod
15    USE aero_mod
16    USE dimphy
17    USE print_control_mod, ONLY: prt_level,lunout
18    USE lmdz_xios
19    implicit none
20
21    include "YOMCST.h"
22
23! Variable input
24    logical debut
25
26! Variables locales
27    integer n_lat   ! number of latitudes in the input data
28    integer n_lon   ! number of longitudes in the input data
29    integer n_lev   ! number of levels in the input data
30    integer n_month ! number of months in the input data
31    real, allocatable:: latitude(:)
32    real, allocatable:: longitude(:)
33    real, allocatable:: time(:)
34    real, allocatable:: lev(:)
35    integer i, k, band, wave
36    integer, save :: mth_pre=1
37!$OMP THREADPRIVATE(mth_pre)
38
39    real, allocatable, dimension(:,:), save :: tau_aer_strat
40!$OMP THREADPRIVATE(tau_aer_strat)
41
42! Champs reconstitues
43    real, allocatable:: tauaerstrat(:, :, :, :)
44    real, allocatable:: tauaerstrat_mois(:, :, :)
45    real, allocatable:: tauaerstrat_mois_glo(:, :)
46    real, allocatable:: tau_aer_strat_mpi(:, :)
47
48! For NetCDF:
49    integer ncid_in  ! IDs for input files
50    integer varid, ncerr
51
52! Stratospheric aerosols optical properties
53! alpha_strat over the 2 bands is normalised by the 550 nm extinction coefficient
54! alpha_strat_wave is *not* normalised by the 550 nm extinction coefficient
55    real, dimension(nbands) :: alpha_strat, piz_strat, cg_strat
56    data alpha_strat/0.9922547, 0.7114912 /
57    data piz_strat  /0.9999998, 0.99762493/
58    data cg_strat   /0.73107845,0.73229635/
59    real, dimension(nwave_sw) :: alpha_strat_wave
60    data alpha_strat_wave/3.36780953,3.34667683,3.20444202,3.0293026,2.82108808/
61
62    CHARACTER (len = 20)                      :: modname = 'readaerosolstrato'
63    CHARACTER (len = 80)                      :: abort_message
64
65!--------------------------------------------------------
66
67    IF (.not.ALLOCATED(tau_aer_strat)) ALLOCATE(tau_aer_strat(klon,klev))
68
69!--only read file if beginning of run or start of new month
70    IF (debut.OR.mth_cur.NE.mth_pre) THEN
71
72!--only root reads
73    IF (is_mpi_root.AND.is_omp_root) THEN
74
75    IF (nbands.NE.2) THEN
76        abort_message='nbands doit etre egal a 2 dans readaerosolstrat'
77        CALL abort_physic(modname,abort_message,1)
78    ENDIF
79
80    CALL nf95_open("taustrat.nc", nf90_nowrite, ncid_in)
81
82    CALL nf95_inq_varid(ncid_in, "LEV", varid)
83    CALL nf95_gw_var(ncid_in, varid, lev)
84    n_lev = size(lev)
85    IF (n_lev.NE.klev) THEN
86       abort_message='Le nombre de niveaux n est pas egal a klev'
87       CALL abort_physic(modname,abort_message,1)
88    ENDIF
89
90    CALL nf95_inq_varid(ncid_in, "LAT", varid)
91    CALL nf95_gw_var(ncid_in, varid, latitude)
92    n_lat = size(latitude)
93    WRITE(lunout,*) 'LAT aerosol strato=', n_lat, latitude
94    IF (grid_type/=unstructured) THEN
95      IF (n_lat.NE.nbp_lat) THEN
96         abort_message='Le nombre de lat n est pas egal a nbp_lat'
97         CALL abort_physic(modname,abort_message,1)
98      ENDIF
99    ENDIF
100   
101    CALL nf95_inq_varid(ncid_in, "LON", varid)
102    CALL nf95_gw_var(ncid_in, varid, longitude)
103    n_lon = size(longitude)
104    IF (grid_type/=unstructured) THEN
105      WRITE(lunout,*) 'LON aerosol strato=', n_lon, longitude
106      IF (n_lon.NE.nbp_lon) THEN
107         abort_message='Le nombre de lon n est pas egal a nbp_lon'
108         CALL abort_physic(modname,abort_message,1)
109      ENDIF
110    ENDIF
111   
112    CALL nf95_inq_varid(ncid_in, "TIME", varid)
113    CALL nf95_gw_var(ncid_in, varid, time)
114    n_month = size(time)
115    WRITE(lunout,*) 'TIME aerosol strato=', n_month, time
116    IF (n_month.NE.12) THEN
117       abort_message='Le nombre de month n est pas egal a 12'
118       CALL abort_physic(modname,abort_message,1)
119    ENDIF
120
121    IF (.not.ALLOCATED(tauaerstrat))          ALLOCATE(tauaerstrat(n_lon, n_lat, n_lev, n_month))
122    IF (.not.ALLOCATED(tauaerstrat_mois))     ALLOCATE(tauaerstrat_mois(n_lon, n_lat, n_lev))
123    IF (.not.ALLOCATED(tauaerstrat_mois_glo)) ALLOCATE(tauaerstrat_mois_glo(klon_glo, n_lev))
124
125!--reading stratospheric AOD at 550 nm
126    CALL nf95_inq_varid(ncid_in, "TAUSTRAT", varid)
127    ncerr = nf90_get_var(ncid_in, varid, tauaerstrat)
128    WRITE(lunout,*) 'code erreur readaerosolstrato=', ncerr, varid
129
130    CALL nf95_close(ncid_in)
131
132!---select the correct month
133    IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN
134     WRITE(lunout,*) 'probleme avec le mois dans readaerosolstrat =', mth_cur
135    ENDIF
136    tauaerstrat_mois(:,:,:) = tauaerstrat(:,:,:,mth_cur)
137
138!---reduce to a klon_glo grid
139    CALL grid2dTo1d_glo(tauaerstrat_mois,tauaerstrat_mois_glo)
140
141    ELSE
142      ALLOCATE(tauaerstrat_mois(0,0,0))
143    ENDIF !--is_mpi_root and is_omp_root
144
145!$OMP BARRIER
146
147    IF (grid_type==unstructured) THEN
148      IF (is_omp_master) THEN
149        CALL xios_send_field("taustrat_in",tauaerstrat_mois)
150        ALLOCATE(tau_aer_strat_mpi(klon_mpi, klev))
151        CALL xios_recv_field("taustrat_out",tau_aer_strat_mpi)
152      ELSE
153        ALLOCATE(tau_aer_strat_mpi(0,0))
154      ENDIF
155      CALL scatter_omp(tau_aer_strat_mpi,tau_aer_strat)
156    ELSE 
157!--scatter on all proc
158      CALL scatter(tauaerstrat_mois_glo,tau_aer_strat)
159    ENDIF
160
161!--keep memory of previous month
162    mth_pre=mth_cur
163!
164    IF (is_mpi_root.AND.is_omp_root) THEN
165!
166    DEALLOCATE(tauaerstrat)
167    DEALLOCATE(tauaerstrat_mois)
168    DEALLOCATE(tauaerstrat_mois_glo)
169!
170    ENDIF !-is_mpi_root and is_omp_root
171
172!$OMP BARRIER
173
174    ENDIF !--debut ou nouveau mois
175
176!--total vertical aod at the 6 wavelengths
177    DO wave=1, nwave_sw
178    DO k=1, klev
179    tausum_aero(:,wave,id_STRAT_phy)=tausum_aero(:,wave,id_STRAT_phy)+tau_aer_strat(:,k)*alpha_strat_wave(wave)/alpha_strat_wave(2)
180    ENDDO
181    ENDDO
182
183!--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones
184    DO band=1, nbands
185!--anthropogenic aerosols bands 1 and 2
186    cg_aero(:,:,3,band)  = ( cg_aero(:,:,3,band)*piz_aero(:,:,3,band)*tau_aero(:,:,3,band) +          &
187                             cg_strat(band)*piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:) ) /  &
188                             MAX( piz_aero(:,:,3,band)*tau_aero(:,:,3,band) +                         &
189                                  piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:), 1.e-15 )
190    piz_aero(:,:,3,band)  = ( piz_aero(:,:,3,band)*tau_aero(:,:,3,band) +                             &
191                              piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:) ) /                &
192                              MAX( tau_aero(:,:,3,band) + alpha_strat(band)*tau_aer_strat(:,:), 1.e-15 )
193    tau_aero(:,:,3,band)  = tau_aero(:,:,3,band) + alpha_strat(band)*tau_aer_strat(:,:)
194!--natural aerosols bands 1 and 2
195    cg_aero(:,:,2,band)  = ( cg_aero(:,:,2,band)*piz_aero(:,:,2,band)*tau_aero(:,:,2,band) +          &
196                             cg_strat(band)*piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:) ) /  &
197                             MAX( piz_aero(:,:,2,band)*tau_aero(:,:,2,band) +                         &
198                                  piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:), 1.e-15 )
199    piz_aero(:,:,2,band)  = ( piz_aero(:,:,2,band)*tau_aero(:,:,2,band) +                             &
200                              piz_strat(band)*alpha_strat(band)*tau_aer_strat(:,:) ) /                &
201                              MAX( tau_aero(:,:,2,band) + alpha_strat(band)*tau_aer_strat(:,:),1.e-15 )
202    tau_aero(:,:,2,band)  = tau_aero(:,:,2,band) + alpha_strat(band)*tau_aer_strat(:,:)
203    ENDDO
204
205end subroutine readaerosolstrato
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