Rayleigh depolarization factor.
rayleigh_depol value
The Rayleigh scattering phase function is $ p(\mu) = a + b \mu^2$ where $ a = 1.5{(1+\texttt{depol})/(2+\texttt{depol})}$ and $ b = 1.5{(1-\texttt{depol})/(2+\texttt{depol})}$ . By default the depolarization is calculated using the expressions from Bodhaine et al. (1999).





Arve Kylling 2010-03-10