aerosol_species_file profile [aero_1 aero_2 ... aero_n]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:
z1 dens(aero_1, z1) dens(aero_2, z1) ... dens(aero_n, z1) 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
Some default aerosol mixtures are provided, corresponding to the definitions in Hess et al. (1998). They can simply be invoked by
aerosol_species_file mixture_namewhere mixture_name can be one of the following:
continental_clean continental_average continental_polluted urban maritime_clean maritime_polluted maritime_tropical desert antarctic