Polarization Lidar Observations of Cirrus Clouds and Asian Dust Aerosols over Hefei
合肥上空卷云和沙尘气溶胶退偏振比的激光雷达探测

A polarization lidar has been developed for measuring profiles of depolarization ratio of cirrus clouds and Asian dust aerosols The fundamental principle of polarization lidar is briefly introduced Overall structure and specifications of the L300 polarization lidar, as well as measurement method, are described The primary observational results over Hefei show that the depolarization ratio for cirrus clouds varies from 0 4 to 0 5 The corresponding ratio for Asian dust aerosols usually varies from 0 2 to 0 3 But, for heavy dust storm, the depolarization ratio for Asian dust aerosols can also reach to 0 4