Specify mass density profiles of a mixture of aerosol types.
aerosol_species_file profile [aero_1 aero_2 ... aero_n]
z1 dens(aero_1, z1) dens(aero_2, z1) ... dens(aero_n, z1)
where aero_1 to aero_n are the aerosol species to be included.
For each of these species, the optical properties are read from the
aerosol_species_library, e.g. the OPAC data set provided with
libRadtran. The profile file needs to include vertical profiles for each
of these species. This file can be either in netCDF-format
(automatically recognized filename extension .nc or .cdf)
or in ASCII format. The format of the ASCII file is:
z2 dens(aero_1, z2) dens(aero_2, z2) ...
. . .
. . .
where z is the height in km, and dens are the aerosol mass
densities in g/m3. Please make sure to include one column for each of
the species aero_1 to aero_n listed after
aerosol_species_file.
For netCDF input it is also possible to specify the unit 'kg kg'; the data
are then automatically converted to g/m
.
Some default aerosol mixtures are provided, corresponding to the definitions in
hess98:_optic_proper_aeros_cloud.
They can simply be invoked by
aerosol_species_file mixture_name
continental_clean desert_spheroids
where mixture_name can be one of the following:
continental_average
continental_polluted
urban
maritime_clean
maritime_polluted
maritime_tropical
desert
antarctic
A variation of the desert mixture containing nonspherical particles is