[2005] | 1 | ! |
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| 2 | ! $Id: readaerosolstrato_rrtm.F90 2258 2015-04-13 08:21:09Z fairhead $ |
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| 3 | ! |
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[2004] | 4 | subroutine readaerosolstrato_rrtm(debut) |
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| 5 | |
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| 6 | use netcdf95, only: nf95_close, nf95_gw_var, nf95_inq_dimid, & |
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| 7 | nf95_inq_varid, nf95_open |
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| 8 | use netcdf, only: nf90_get_var, nf90_noerr, nf90_nowrite |
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| 9 | |
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| 10 | USE phys_cal_mod, ONLY : mth_cur |
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| 11 | USE mod_grid_phy_lmdz |
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| 12 | USE mod_phys_lmdz_mpi_data, ONLY : is_mpi_root |
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| 13 | USE mod_phys_lmdz_para |
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| 14 | USE phys_state_var_mod |
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| 15 | USE phys_local_var_mod |
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| 16 | USE aero_mod |
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| 17 | USE dimphy |
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[2160] | 18 | USE YOERAD , ONLY : NLW |
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[2004] | 19 | |
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| 20 | implicit none |
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| 21 | |
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[2160] | 22 | include "YOMCST.h" |
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[2004] | 23 | include "dimensions.h" |
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| 24 | |
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| 25 | ! Variable input |
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| 26 | logical debut |
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| 27 | |
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| 28 | ! Variables locales |
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| 29 | integer n_lat ! number of latitudes in the input data |
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| 30 | integer n_lon ! number of longitudes in the input data |
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| 31 | integer n_lev ! number of levels in the input data |
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| 32 | integer n_month ! number of months in the input data |
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| 33 | real, pointer:: latitude(:) |
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| 34 | real, pointer:: longitude(:) |
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| 35 | real, pointer:: time(:) |
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| 36 | real, pointer:: lev(:) |
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[2160] | 37 | integer k, band, wave, i |
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[2004] | 38 | integer, save :: mth_pre |
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| 39 | |
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| 40 | real, allocatable, dimension(:,:), save :: tau_aer_strat |
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| 41 | !$OMP THREADPRIVATE(tau_aer_strat) |
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| 42 | |
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| 43 | ! Champs reconstitues |
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| 44 | real, allocatable:: tauaerstrat(:, :, :, :) |
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| 45 | real, allocatable:: tauaerstrat_mois(:, :, :) |
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| 46 | real, allocatable:: tauaerstrat_mois_glo(:, :) |
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| 47 | |
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[2160] | 48 | real, allocatable:: sum_tau_aer_strat(:) |
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| 49 | |
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[2004] | 50 | ! For NetCDF: |
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| 51 | integer ncid_in ! IDs for input files |
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| 52 | integer varid, ncerr |
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| 53 | |
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| 54 | ! Stratospheric aerosols optical properties |
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[2160] | 55 | ! alpha_sw_strat over the 6 bands is normalised by the 550 nm extinction coefficient |
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| 56 | real, dimension(nbands_sw_rrtm) :: alpha_sw_strat, piz_sw_strat, cg_sw_strat |
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| 57 | data alpha_sw_strat/0.8545564, 0.8451642, 0.9821724, 0.8145110, 0.3073565, 7.7966176E-02/ |
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| 58 | data cg_sw_strat /0.6997170, 0.6810035, 0.7403592, 0.7562674, 0.6676504, 0.3478689/ |
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| 59 | data piz_sw_strat /0.9999998, 0.9999998, 1.000000000, 0.9999958, 0.9977155, 0.4510679/ |
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| 60 | ! |
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| 61 | !--diagnostics AOD in the SW |
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| 62 | ! alpha_sw_strat_wave is *not* normalised by the 550 nm extinction coefficient |
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| 63 | real, dimension(nwave) :: alpha_sw_strat_wave |
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| 64 | data alpha_sw_strat_wave/3.708007,4.125824,4.136584,3.887478,3.507738/ |
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| 65 | ! |
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| 66 | !--diagnostics AOD in the LW at 10 um |
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| 67 | real :: alpha_lw_strat_wave |
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| 68 | data alpha_lw_strat_wave/0.2746812/ |
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| 69 | ! |
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| 70 | real, dimension(nbands_lw_rrtm) :: alpha_lw_abs_rrtm |
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| 71 | data alpha_lw_abs_rrtm/ 8.8340312E-02, 6.9856711E-02, 6.2652975E-02, 5.7188231E-02, & |
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| 72 | 6.3157059E-02, 5.5072524E-02, 5.0571125E-02, 0.1349073, & |
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| 73 | 0.1381676, 9.6506312E-02, 5.1312990E-02, 2.4256418E-02, & |
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| 74 | 2.7191756E-02, 3.3862915E-02, 1.6132960E-02, 1.4275438E-02/ ! calculated with Mie_SW_LW_RRTM_V2.4 (bimodal, corrected) |
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| 75 | ! for r_0=/0.13E-6, 0.41E-6/ m, sigma_g=/1.26, 1.30/ |
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| 76 | ! order: increasing wavelength! |
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[2004] | 77 | !-------------------------------------------------------- |
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| 78 | |
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| 79 | IF (.not.ALLOCATED(tau_aer_strat)) ALLOCATE(tau_aer_strat(klon,klev)) |
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[2160] | 80 | IF (.not.ALLOCATED(sum_tau_aer_strat)) ALLOCATE(sum_tau_aer_strat(klon)) |
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[2004] | 81 | |
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[2187] | 82 | IF (debut.OR.mth_cur.NE.mth_pre) THEN |
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| 83 | |
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[2004] | 84 | IF (is_mpi_root) THEN |
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| 85 | |
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[2160] | 86 | IF (nbands_sw_rrtm.NE.6) THEN |
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| 87 | print *,'nbands_sw_rrtm doit etre egal a 6 dans readaerosolstrat_rrtm' |
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[2004] | 88 | STOP |
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| 89 | ENDIF |
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| 90 | |
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| 91 | CALL nf95_open("taustrat.nc", nf90_nowrite, ncid_in) |
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| 92 | |
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| 93 | CALL nf95_inq_varid(ncid_in, "LEV", varid) |
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| 94 | CALL nf95_gw_var(ncid_in, varid, lev) |
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| 95 | n_lev = size(lev) |
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| 96 | IF (n_lev.NE.klev) THEN |
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| 97 | print *,'Le nombre de niveaux n est pas egal a klev' |
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| 98 | STOP |
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| 99 | ENDIF |
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| 100 | |
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| 101 | CALL nf95_inq_varid(ncid_in, "LAT", varid) |
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| 102 | CALL nf95_gw_var(ncid_in, varid, latitude) |
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| 103 | n_lat = size(latitude) |
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| 104 | print *, 'LAT aerosol strato=', n_lat, latitude |
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| 105 | IF (n_lat.NE.jjm+1) THEN |
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| 106 | print *,'Le nombre de lat n est pas egal a jjm+1' |
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| 107 | STOP |
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| 108 | ENDIF |
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| 109 | |
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| 110 | CALL nf95_inq_varid(ncid_in, "LON", varid) |
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| 111 | CALL nf95_gw_var(ncid_in, varid, longitude) |
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| 112 | n_lon = size(longitude) |
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| 113 | print *, 'LON aerosol strato=', n_lon, longitude |
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| 114 | IF (n_lon.NE.iim) THEN |
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| 115 | print *,'Le nombre de lon n est pas egal a iim' |
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| 116 | STOP |
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| 117 | ENDIF |
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| 118 | |
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| 119 | CALL nf95_inq_varid(ncid_in, "TIME", varid) |
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| 120 | CALL nf95_gw_var(ncid_in, varid, time) |
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| 121 | n_month = size(time) |
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| 122 | print *, 'TIME aerosol strato=', n_month, time |
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| 123 | IF (n_month.NE.12) THEN |
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| 124 | print *,'Le nombre de month n est pas egal a 12' |
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| 125 | STOP |
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| 126 | ENDIF |
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| 127 | |
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| 128 | ALLOCATE(tauaerstrat(n_lon, n_lat, n_lev, n_month)) |
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| 129 | ALLOCATE(tauaerstrat_mois(n_lon, n_lat, n_lev)) |
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| 130 | ALLOCATE(tauaerstrat_mois_glo(klon_glo, n_lev)) |
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| 131 | |
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| 132 | !--reading stratospheric AOD at 550 nm |
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| 133 | CALL nf95_inq_varid(ncid_in, "TAUSTRAT", varid) |
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| 134 | ncerr = nf90_get_var(ncid_in, varid, tauaerstrat) |
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| 135 | print *,'code erreur readaerosolstrato=', ncerr, varid |
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| 136 | |
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| 137 | CALL nf95_close(ncid_in) |
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| 138 | |
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| 139 | !---select the correct month |
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| 140 | IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN |
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| 141 | print *,'probleme avec le mois dans readaerosolstrat =', mth_cur |
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| 142 | ENDIF |
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| 143 | tauaerstrat_mois(:,:,:) = tauaerstrat(:,:,:,mth_cur) |
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| 144 | |
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| 145 | !---reduce to a klon_glo grid |
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| 146 | CALL grid2dTo1d_glo(tauaerstrat_mois,tauaerstrat_mois_glo) |
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| 147 | |
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[2160] | 148 | ENDIF !--is_mpi_root |
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| 149 | |
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| 150 | !--keep memory of previous month |
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| 151 | mth_pre=mth_cur |
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| 152 | |
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[2004] | 153 | !--scatter on all proc |
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| 154 | CALL scatter(tauaerstrat_mois_glo,tau_aer_strat) |
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| 155 | |
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[2160] | 156 | IF (is_mpi_root) THEN |
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| 157 | ! |
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[2004] | 158 | DEALLOCATE(tauaerstrat) |
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| 159 | DEALLOCATE(tauaerstrat_mois) |
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| 160 | DEALLOCATE(tauaerstrat_mois_glo) |
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[2160] | 161 | ! |
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| 162 | ENDIF !--is_mpi_root |
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[2004] | 163 | |
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| 164 | ENDIF !--debut ou nouveau mois |
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| 165 | |
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[2160] | 166 | !--total vertical aod at the 5 SW wavelengths |
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[2004] | 167 | DO wave=1, nwave |
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| 168 | DO k=1, klev |
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[2160] | 169 | tausum_aero(:,wave,id_STRAT_phy)=tausum_aero(:,wave,id_STRAT_phy)+ & |
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[2187] | 170 | tau_aer_strat(:,k)*alpha_sw_strat_wave(wave)/alpha_sw_strat_wave(2) |
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[2004] | 171 | ENDDO |
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| 172 | ENDDO |
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| 173 | |
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| 174 | !--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones |
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[2160] | 175 | DO band=1, nbands_sw_rrtm |
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| 176 | !--anthropogenic aerosols bands 1 to nbands_sw_rrtm |
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| 177 | cg_aero_sw_rrtm(:,:,2,band) = ( cg_aero_sw_rrtm(:,:,2,band)*piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 178 | cg_sw_strat(band)*piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 179 | MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 180 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 181 | piz_aero_sw_rrtm(:,:,2,band) = ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 182 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 183 | MAX( tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 184 | tau_aero_sw_rrtm(:,:,2,band) = tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:) |
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| 185 | !--natural aerosols bands 1 to nbands_sw_rrtm |
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| 186 | cg_aero_sw_rrtm(:,:,1,band) = ( cg_aero_sw_rrtm(:,:,1,band)*piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + & |
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| 187 | cg_sw_strat(band)*piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 188 | MAX( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + & |
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| 189 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 190 | piz_aero_sw_rrtm(:,:,1,band) = ( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + & |
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| 191 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 192 | MAX( tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:),1.e-15 ) |
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| 193 | tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:) |
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| 194 | !--no stratospheric aerosol in index 1 for these tests |
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| 195 | ! cg_aero_sw_rrtm(:,:,1,band) = cg_aero_sw_rrtm(:,:,1,band) |
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| 196 | ! piz_aero_sw_rrtm(:,:,1,band) = piz_aero_sw_rrtm(:,:,1,band) |
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| 197 | ! tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) |
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[2004] | 198 | ENDDO |
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| 199 | |
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[2160] | 200 | !--stratospheric AOD in LW |
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| 201 | IF (nbands_lw_rrtm .NE. NLW) then |
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| 202 | print*, 'different values for NLW (=',NLW,') and nbands_lw_rrtm (=', nbands_lw_rrtm, ')' |
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| 203 | STOP |
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| 204 | ENDIF |
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| 205 | |
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| 206 | DO band=1, nbands_lw_rrtm |
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| 207 | tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:) |
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| 208 | tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:) |
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| 209 | !--no stratospheric aerosols in index 1 for these tests |
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| 210 | ! tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) |
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| 211 | ENDDO |
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| 212 | |
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[2258] | 213 | !--default SSA value if there is no aerosol |
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| 214 | !--to avoid 0 values that seems to cause some problem to RRTM |
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| 215 | WHERE (tau_aero_sw_rrtm.LT.1.e-14) |
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| 216 | piz_aero_sw_rrtm = 1.0 |
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| 217 | ENDWHERE |
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| 218 | |
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| 219 | !--in principle this should not be necessary |
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| 220 | !--as these variables have min values already but just in case |
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| 221 | !--put 1e-15 min value to both SW and LW AOD |
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| 222 | tau_aero_sw_rrtm = MAX(tau_aero_sw_rrtm,1.e-15) |
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| 223 | tau_aero_lw_rrtm = MAX(tau_aero_lw_rrtm,1.e-15) |
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| 224 | |
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[2004] | 225 | end subroutine readaerosolstrato_rrtm |
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