A way to specify cloud extinction coefficient, single scattering albedo, and scattering phase function for each layer.
wc_files file
The file specified by wc_files has two columns where column 1 is the altitude in km. The second column is the name of a file which defines the optical properties of the layer starting at the given altitude. The files specified in the second column must have the following format:
Column 1: The wavelength in nm. These wavelengths may be different from those in solar_file. Optical properties are interpolated to the requested wavelengths.
Column 2: The extinction coefficient of the layer in units km-1.
Column 3: The single scattering albedo of the layer.
Column 4-(nmom+4): The moments of the scattering phase function.
Note that if using the rte_solver disort2 it makes good sense to make the number of moments larger than nstr. For rte_solver disort and rte_solver polradtran the number of moments included in the calculations will be nstr+1. Higher order moments will be ignored for these solvers. Please note that the uppermost line of wc_files denotes simply the top altitude of the uppermost layer. The optical properties of this line are consequently ignored. There are two options for this line: either an optical property file with zero optical thickness is specified or "NULL" is used.





Arve Kylling 2010-03-10