Set the aerosol phase function moments to the values specified in the aerosol moments file
   aerosol_moments_file file_name
where the file contains one column with arbitrary number of Legendre terms of the phase function. The phase function $ p(\mu)$ is

$\displaystyle p (\mu) = \sum_{m=0}^{\infty} (2m+1) \cdot k_m \cdot P_m (\mu)$ (0.1)

where $ k_m$ is the m'th moment and $ P_m (\mu)$ is the m'th Legendre polynomial. If not specified, a Henyey-Greenstein phase function is assumed where the asymmetry parameter g is either a default value depending on the aerosol type or it may be specified using aerosol_set_gg. The phase function will be the same for all altitudes and wavelengths. See aerosol_files if more flexibility is wanted.



Arve Kylling 2010-03-10