| 1 | ! |
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| 2 | ! $Id: readaerosolstrato1_rrtm.F90 2526 2016-05-26 22:13:40Z oboucher $ |
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| 3 | ! |
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| 4 | SUBROUTINE readaerosolstrato1_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, ONLY: nbp_lon, nbp_lat, klon_glo, grid2dTo1d_glo |
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| 12 | USE mod_phys_lmdz_mpi_data, ONLY : is_mpi_root |
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| 13 | USE mod_phys_lmdz_omp_data, ONLY : is_omp_root |
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| 14 | USE mod_phys_lmdz_para |
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| 15 | USE phys_state_var_mod |
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| 16 | USE phys_local_var_mod |
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| 17 | USE aero_mod |
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| 18 | USE dimphy |
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| 19 | USE YOERAD, ONLY : NLW |
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| 20 | USE YOMCST |
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| 21 | |
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| 22 | IMPLICIT NONE |
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| 23 | |
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| 24 | ! Variable input |
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| 25 | LOGICAL debut |
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| 26 | |
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| 27 | ! Variables locales |
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| 28 | INTEGER n_lat ! number of latitudes in the input data |
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| 29 | INTEGER n_lon ! number of longitudes in the input data |
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| 30 | INTEGER n_lev ! number of levels in the input data |
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| 31 | INTEGER n_month ! number of months in the input data |
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| 32 | REAL, POINTER:: latitude(:) |
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| 33 | REAL, POINTER:: longitude(:) |
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| 34 | REAL, POINTER:: time(:) |
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| 35 | REAL, POINTER:: lev(:) |
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| 36 | INTEGER k, band, wave, i |
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| 37 | INTEGER, SAVE :: mth_pre |
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| 38 | |
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| 39 | REAL, ALLOCATABLE, DIMENSION(:,:), SAVE :: tau_aer_strat |
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| 40 | !$OMP THREADPRIVATE(tau_aer_strat) |
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| 41 | |
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| 42 | ! Champs reconstitues |
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| 43 | REAL, ALLOCATABLE:: tauaerstrat(:, :, :, :) |
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| 44 | REAL, ALLOCATABLE:: tauaerstrat_mois(:, :, :) |
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| 45 | REAL, ALLOCATABLE:: tauaerstrat_mois_glo(:, :) |
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| 46 | |
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| 47 | REAL, ALLOCATABLE:: sum_tau_aer_strat(:) |
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| 48 | |
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| 49 | ! For NetCDF: |
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| 50 | INTEGER ncid_in ! IDs for input files |
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| 51 | INTEGER varid, ncerr |
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| 52 | |
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| 53 | ! Stratospheric aerosols optical properties |
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| 54 | ! alpha_sw_strat over the 6 bands is normalised by the 550 nm extinction coefficient |
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| 55 | REAL, DIMENSION(nbands_sw_rrtm) :: alpha_sw_strat, piz_sw_strat, cg_sw_strat |
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| 56 | DATA alpha_sw_strat/0.8545564, 0.8451642, 0.9821724, 0.8145110, 0.3073565, 7.7966176E-02/ |
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| 57 | DATA cg_sw_strat /0.6997170, 0.6810035, 0.7403592, 0.7562674, 0.6676504, 0.3478689/ |
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| 58 | DATA piz_sw_strat /0.9999998, 0.9999998, 1.000000000, 0.9999958, 0.9977155, 0.4510679/ |
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| 59 | ! |
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| 60 | !--diagnostics AOD in the SW |
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| 61 | ! alpha_sw_strat_wave is *not* normalised by the 550 nm extinction coefficient |
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| 62 | REAL, DIMENSION(nwave_sw) :: alpha_sw_strat_wave |
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| 63 | DATA alpha_sw_strat_wave/3.708007,4.125824,4.136584,3.887478,3.507738/ |
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| 64 | ! |
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| 65 | !--diagnostics AOD in the LW at 10 um (not normalised by the 550 nm ext coefficient |
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| 66 | REAL :: alpha_lw_strat_wave(nwave_lw) |
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| 67 | DATA alpha_lw_strat_wave/0.2746812/ |
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| 68 | ! |
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| 69 | REAL, DIMENSION(nbands_lw_rrtm) :: alpha_lw_abs_rrtm |
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| 70 | DATA alpha_lw_abs_rrtm/ 8.8340312E-02, 6.9856711E-02, 6.2652975E-02, 5.7188231E-02, & |
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| 71 | 6.3157059E-02, 5.5072524E-02, 5.0571125E-02, 0.1349073, & |
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| 72 | 0.1381676, 9.6506312E-02, 5.1312990E-02, 2.4256418E-02, & |
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| 73 | 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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| 74 | ! for r_0=/0.13E-6, 0.41E-6/ m, sigma_g=/1.26, 1.30/ |
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| 75 | ! order: increasing wavelength! |
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| 76 | !-------------------------------------------------------- |
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| 77 | |
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| 78 | IF (.not.ALLOCATED(tau_aer_strat)) ALLOCATE(tau_aer_strat(klon,klev)) |
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| 79 | IF (.not.ALLOCATED(sum_tau_aer_strat)) ALLOCATE(sum_tau_aer_strat(klon)) |
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| 80 | |
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| 81 | !--we only read monthly strat aerosol data |
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| 82 | IF (debut.OR.mth_cur.NE.mth_pre) THEN |
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| 83 | |
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| 84 | !--only root reads the data |
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| 85 | IF (is_mpi_root.AND.is_omp_root) THEN |
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| 86 | |
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| 87 | IF (nbands_sw_rrtm.NE.6) THEN |
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| 88 | print *,'nbands_sw_rrtm doit etre egal a 6 dans readaerosolstrat_rrtm' |
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| 89 | STOP |
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| 90 | ENDIF |
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| 91 | |
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| 92 | CALL nf95_open("taustrat.nc", nf90_nowrite, ncid_in) |
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| 93 | |
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| 94 | CALL nf95_inq_varid(ncid_in, "LEV", varid) |
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| 95 | CALL nf95_gw_var(ncid_in, varid, lev) |
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| 96 | n_lev = size(lev) |
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| 97 | IF (n_lev.NE.klev) THEN |
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| 98 | print *,'Le nombre de niveaux n est pas egal a klev' |
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| 99 | STOP |
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| 100 | ENDIF |
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| 101 | |
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| 102 | CALL nf95_inq_varid(ncid_in, "LAT", varid) |
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| 103 | CALL nf95_gw_var(ncid_in, varid, latitude) |
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| 104 | n_lat = size(latitude) |
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| 105 | print *, 'LAT aerosol strato=', n_lat, latitude |
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| 106 | IF (n_lat.NE.nbp_lat) THEN |
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| 107 | print *,'Le nombre de lat n est pas egal a nbp_lat' |
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| 108 | STOP |
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| 109 | ENDIF |
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| 110 | |
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| 111 | CALL nf95_inq_varid(ncid_in, "LON", varid) |
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| 112 | CALL nf95_gw_var(ncid_in, varid, longitude) |
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| 113 | n_lon = size(longitude) |
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| 114 | print *, 'LON aerosol strato=', n_lon, longitude |
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| 115 | IF (n_lon.NE.nbp_lon) THEN |
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| 116 | print *,'Le nombre de lon n est pas egal a nbp_lon' |
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| 117 | STOP |
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| 118 | ENDIF |
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| 119 | |
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| 120 | CALL nf95_inq_varid(ncid_in, "TIME", varid) |
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| 121 | CALL nf95_gw_var(ncid_in, varid, time) |
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| 122 | n_month = size(time) |
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| 123 | print *, 'TIME aerosol strato=', n_month, time |
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| 124 | IF (n_month.NE.12) THEN |
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| 125 | print *,'Le nombre de month n est pas egal a 12' |
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| 126 | STOP |
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| 127 | ENDIF |
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| 128 | |
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| 129 | ALLOCATE(tauaerstrat(n_lon, n_lat, n_lev, n_month)) |
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| 130 | ALLOCATE(tauaerstrat_mois(n_lon, n_lat, n_lev)) |
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| 131 | ALLOCATE(tauaerstrat_mois_glo(klon_glo, n_lev)) |
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| 132 | |
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| 133 | !--reading stratospheric AOD at 550 nm |
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| 134 | CALL nf95_inq_varid(ncid_in, "TAUSTRAT", varid) |
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| 135 | ncerr = nf90_get_var(ncid_in, varid, tauaerstrat) |
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| 136 | print *,'code erreur readaerosolstrato=', ncerr, varid |
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| 137 | |
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| 138 | CALL nf95_close(ncid_in) |
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| 139 | |
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| 140 | !---select the correct month |
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| 141 | IF (mth_cur.LT.1.OR.mth_cur.GT.12) THEN |
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| 142 | print *,'probleme avec le mois dans readaerosolstrat =', mth_cur |
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| 143 | ENDIF |
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| 144 | tauaerstrat_mois(:,:,:) = tauaerstrat(:,:,:,mth_cur) |
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| 145 | |
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| 146 | !---reduce to a klon_glo grid |
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| 147 | CALL grid2dTo1d_glo(tauaerstrat_mois,tauaerstrat_mois_glo) |
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| 148 | |
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| 149 | ENDIF !--is_mpi_root and is_omp_root |
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| 150 | |
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| 151 | !$OMP BARRIER |
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| 152 | |
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| 153 | !--keep memory of previous month |
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| 154 | mth_pre=mth_cur |
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| 155 | |
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| 156 | !--scatter on all proc |
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| 157 | CALL scatter(tauaerstrat_mois_glo,tau_aer_strat) |
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| 158 | |
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| 159 | IF (is_mpi_root.AND.is_omp_root) THEN |
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| 160 | ! |
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| 161 | DEALLOCATE(tauaerstrat) |
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| 162 | DEALLOCATE(tauaerstrat_mois) |
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| 163 | DEALLOCATE(tauaerstrat_mois_glo) |
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| 164 | ! |
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| 165 | ENDIF !--is_mpi_root and is_omp_root |
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| 166 | |
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| 167 | !$OMP BARRIER |
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| 168 | |
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| 169 | ENDIF !--debut ou nouveau mois |
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| 170 | |
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| 171 | !--total vertical aod at the 5 SW wavelengths |
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| 172 | DO wave=1, nwave_sw |
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| 173 | DO k=1, klev |
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| 174 | tausum_aero(:,wave,id_STRAT_phy)=tausum_aero(:,wave,id_STRAT_phy)+ & |
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| 175 | tau_aer_strat(:,k)*alpha_sw_strat_wave(wave)/alpha_sw_strat_wave(2) |
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| 176 | ENDDO |
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| 177 | ENDDO |
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| 178 | |
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| 179 | !--weighted average for cg, piz and tau, adding strat aerosols on top of tropospheric ones |
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| 180 | DO band=1, nbands_sw_rrtm |
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| 181 | !--anthropogenic aerosols bands 1 to nbands_sw_rrtm |
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| 182 | 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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| 183 | cg_sw_strat(band)*piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 184 | MAX( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 185 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 186 | piz_aero_sw_rrtm(:,:,2,band) = ( piz_aero_sw_rrtm(:,:,2,band)*tau_aero_sw_rrtm(:,:,2,band) + & |
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| 187 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 188 | MAX( tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 189 | tau_aero_sw_rrtm(:,:,2,band) = tau_aero_sw_rrtm(:,:,2,band) + alpha_sw_strat(band)*tau_aer_strat(:,:) |
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| 190 | !--natural aerosols bands 1 to nbands_sw_rrtm |
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| 191 | 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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| 192 | cg_sw_strat(band)*piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 193 | MAX( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + & |
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| 194 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:), 1.e-15 ) |
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| 195 | piz_aero_sw_rrtm(:,:,1,band) = ( piz_aero_sw_rrtm(:,:,1,band)*tau_aero_sw_rrtm(:,:,1,band) + & |
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| 196 | piz_sw_strat(band)*alpha_sw_strat(band)*tau_aer_strat(:,:) ) / & |
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| 197 | MAX( tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:),1.e-15 ) |
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| 198 | tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) + alpha_sw_strat(band)*tau_aer_strat(:,:) |
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| 199 | !--no stratospheric aerosol in index 1 for these tests |
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| 200 | ! cg_aero_sw_rrtm(:,:,1,band) = cg_aero_sw_rrtm(:,:,1,band) |
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| 201 | ! piz_aero_sw_rrtm(:,:,1,band) = piz_aero_sw_rrtm(:,:,1,band) |
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| 202 | ! tau_aero_sw_rrtm(:,:,1,band) = tau_aero_sw_rrtm(:,:,1,band) |
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| 203 | ENDDO |
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| 204 | |
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| 205 | !--stratospheric AOD in LW |
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| 206 | IF (nbands_lw_rrtm .NE. NLW) then |
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| 207 | print*, 'different values for NLW (=',NLW,') and nbands_lw_rrtm (=', nbands_lw_rrtm, ')' |
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| 208 | STOP |
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| 209 | ENDIF |
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| 210 | |
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| 211 | !--total vertical aod at the 1 LW wavelength |
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| 212 | DO wave=1, nwave_lw |
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| 213 | DO k=1, klev |
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| 214 | tausum_aero(:,nwave_sw+wave,id_STRAT_phy)=tausum_aero(:,nwave_sw+wave,id_STRAT_phy)+ & |
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| 215 | tau_aer_strat(:,k)*alpha_lw_strat_wave(wave)/alpha_sw_strat_wave(2) |
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| 216 | ENDDO |
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| 217 | ENDDO |
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| 218 | |
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| 219 | DO band=1, nbands_lw_rrtm |
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| 220 | tau_aero_lw_rrtm(:,:,2,band) = tau_aero_lw_rrtm(:,:,2,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:) |
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| 221 | tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) + alpha_lw_abs_rrtm(band)*tau_aer_strat(:,:) |
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| 222 | !--no stratospheric aerosols in index 1 for these tests |
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| 223 | ! tau_aero_lw_rrtm(:,:,1,band) = tau_aero_lw_rrtm(:,:,1,band) |
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| 224 | ENDDO |
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| 225 | |
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| 226 | !--default SSA value if there is no aerosol |
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| 227 | !--to avoid 0 values that seems to cause some problem to RRTM |
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| 228 | WHERE (tau_aero_sw_rrtm.LT.1.e-14) |
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| 229 | piz_aero_sw_rrtm = 1.0 |
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| 230 | ENDWHERE |
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| 231 | |
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| 232 | !--in principle this should not be necessary |
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| 233 | !--as these variables have min values already but just in case |
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| 234 | !--put 1e-15 min value to both SW and LW AOD |
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| 235 | tau_aero_sw_rrtm = MAX(tau_aero_sw_rrtm,1.e-15) |
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| 236 | tau_aero_lw_rrtm = MAX(tau_aero_lw_rrtm,1.e-15) |
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| 237 | |
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| 238 | END SUBROUTINE readaerosolstrato1_rrtm |
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