A New Concept to Characterize Nonspherical Particles from Multi-wavelength Depolarization Ratios Based on T-matrix Computation

摘要

A new concept to derive particle information from depolarization ratios obtained by a simultaneous three-wavelength depolarization lidar was presented.This new data treatment utilized the wavelength dependence of the ratio of the polarization components in the scattering light based on T-matrix computation.The results showed that calculated three-wavelength depolarization ratios can be used to characterize particle sizes of ice particles.Assessing the mixing of spherical and non-spherical aerosols,the presented method successfully reproduced the lidar data in real.