Multiple Scattering by The Side Looking Lidar

It is accepted that the contribution of multiple scattering in Lidar measurements from optically dense media causes difficulties in the interpretation of the Lidar signal usually based on a single-scattering approximation(1). This is due to the fact that most methods used in the past for inferring particle sizes from measurements obtained by a Lidar, were based on spectral or angular single scattering measurements(2). On the other hand the multiple scattering itself provides an additional piece of information when it can be separated from the single-scattering contribution.This additional information is used below to deduce the cloud droplet size distribution function.