Raman/Mie 激光雷达探测武汉上空气溶胶消光系数、后向散射系数和激光雷达比

Abstract

The profiles of aerosol extinction, backscatter coeffcient, and lidar ratio in the lower troposphere over Wuhan are measured by a multi-channel Raman/Mie lidar. Using the lidar ratio retrieved by Raman scattering principle, the profiles of aerosol extinction and backscatter coefficients are also retrieved by Mie scattering signals, without a prior assumption about their relation in the traditional pure Mie signals data analyses. The observations by both Raman and Mie are in good agreement with each other. The high coherence shows that the system is reliable, and the Mie and Raman channels are in good adjustment and have the same field of view.