[3880] | 1 | ! radiation_cloud_optics_data.F90 - Type to store cloud optical properties |
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| 2 | ! |
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| 3 | ! (C) Copyright 2014- ECMWF. |
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| 4 | ! |
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| 5 | ! This software is licensed under the terms of the Apache Licence Version 2.0 |
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| 6 | ! which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. |
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| 7 | ! |
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| 8 | ! In applying this licence, ECMWF does not waive the privileges and immunities |
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| 9 | ! granted to it by virtue of its status as an intergovernmental organisation |
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| 10 | ! nor does it submit to any jurisdiction. |
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| 11 | ! |
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| 12 | ! Author: Robin Hogan |
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| 13 | ! Email: r.j.hogan@ecmwf.int |
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| 14 | ! |
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| 15 | |
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| 16 | module radiation_cloud_optics_data |
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| 17 | |
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| 18 | use parkind1, only : jprb |
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| 19 | |
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| 20 | implicit none |
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| 21 | public |
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| 22 | |
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| 23 | !--------------------------------------------------------------------- |
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| 24 | ! This type holds the configuration information to compute |
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| 25 | ! cloud optical properties |
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| 26 | type cloud_optics_type |
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| 27 | ! Band-specific coefficients are provided separately in the |
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| 28 | ! shortwave and longwave, and are dimensioned (nband,ncoeff), |
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| 29 | ! where ncoeff depends on the nature of the parameterization |
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| 30 | real(jprb), allocatable, dimension(:,:) :: & |
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| 31 | & liq_coeff_lw, liq_coeff_sw, & |
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| 32 | & ice_coeff_lw, ice_coeff_sw |
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| 33 | ! General coefficients are vectors of length ncoeffgen, which |
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| 34 | ! depends on the nature of the parameterization; note that most |
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| 35 | ! parameterizations use only band-specific coefficients |
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| 36 | real(jprb), allocatable, dimension(:) :: & |
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| 37 | & liq_coeff_gen, ice_coeff_gen |
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| 38 | |
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| 39 | contains |
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| 40 | procedure :: setup => setup_cloud_optics |
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| 41 | |
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| 42 | end type cloud_optics_type |
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| 43 | |
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| 44 | contains |
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| 45 | |
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| 46 | !--------------------------------------------------------------------- |
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| 47 | ! Setup cloud optics coefficients by reading them from a file |
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| 48 | subroutine setup_cloud_optics(this, liq_file_name, ice_file_name, & |
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| 49 | & iverbose) |
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| 50 | |
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| 51 | use yomhook, only : lhook, dr_hook |
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| 52 | use easy_netcdf, only : netcdf_file |
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| 53 | |
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| 54 | class(cloud_optics_type), intent(inout) :: this |
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| 55 | character(len=*), intent(in) :: liq_file_name, ice_file_name |
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| 56 | integer, intent(in), optional :: iverbose |
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| 57 | |
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| 58 | ! The NetCDF file containing the coefficients |
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| 59 | type(netcdf_file) :: file |
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| 60 | integer :: iverb |
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| 61 | real(jprb) :: hook_handle |
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| 62 | |
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| 63 | if (lhook) call dr_hook('radiation_cloud_optics_data:setup',0,hook_handle) |
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| 64 | |
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| 65 | if (present(iverbose)) then |
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| 66 | iverb = iverbose |
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| 67 | else |
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| 68 | iverb = 2 |
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| 69 | end if |
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| 70 | |
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| 71 | ! Open the droplet scattering file and configure the way it is |
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| 72 | ! read |
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| 73 | call file%open(trim(liq_file_name), iverbose=iverb) |
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| 74 | call file%transpose_matrices() |
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| 75 | |
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| 76 | ! Read the band-specific coefficients |
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| 77 | call file%get('coeff_lw',this%liq_coeff_lw) |
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| 78 | call file%get('coeff_sw',this%liq_coeff_sw) |
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| 79 | |
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| 80 | ! Read the general coefficients |
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| 81 | if (file%exists('coeff_gen')) then |
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| 82 | call file%get('coeff_gen',this%liq_coeff_gen) |
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| 83 | end if |
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| 84 | |
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| 85 | ! Close droplet scattering file |
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| 86 | call file%close() |
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| 87 | |
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| 88 | ! Open the ice scattering file and configure the way it is read |
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| 89 | call file%open(trim(ice_file_name), iverbose=iverb) |
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| 90 | call file%transpose_matrices() |
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| 91 | |
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| 92 | ! Read the band-specific coefficients |
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| 93 | call file%get('coeff_lw',this%ice_coeff_lw) |
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| 94 | call file%get('coeff_sw',this%ice_coeff_sw) |
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| 95 | |
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| 96 | ! Read the general coefficients |
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| 97 | if (file%exists('coeff_gen')) then |
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| 98 | call file%get('coeff_gen',this%ice_coeff_gen) |
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| 99 | end if |
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| 100 | |
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| 101 | ! Close ice scattering file |
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| 102 | call file%close() |
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| 103 | |
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| 104 | if (lhook) call dr_hook('radiation_cloud_optics_data:setup',1,hook_handle) |
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| 105 | |
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| 106 | end subroutine setup_cloud_optics |
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| 107 | |
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| 108 | end module radiation_cloud_optics_data |
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