Detection and Analysis of Aerosol Micro-physics Properties using Mul ti-wavelength and Polarization Lidar in Xi’an, China

摘要

Lidar is a powerful tool for remotely studying temporal and spatial variations of aerosol in atmosphere. Mie-scattering lidar which measures the total backscattered laser light from the atmosphere is used worldwidely for studying aerosol optical properties (Tomoaki N., et al. 2011). The aerosol backscatter optical property is uniquely determined according to the physical and chemical properties of the aerosols (their size, shape, and complex refractive index) and the laser wavelength, and the wavelength dependence of the backscatter and extinction coefficient is mainly dependent on the aerosol size distribution and refractive index (Detlef. et al. 1999). The micro physical characteristics of aerosol can be retrieved according to multi-wavelength optical signals.