Accurate inversion of tropospheric aerosol extinction coefficient profile by Mie-Raman lidar

摘要

An observation experiment on atmospheric aerosols based on Mie-Raman scattering lidar in northern suburb of Nanjing was introduced. To avoid the saturation effect of strong signals near the ground, the detection height of Raman scattering lidar was set high. For better inversion results, Mie-Raman scattering lidar's aerosol observational data were processed by wavelet de-noising. Appropriate threshold was selected to denoise the experimental observed data. The atmospheric aerosol extinction coefficient profiles in the upper troposphere were retrieved by Raman scattering lidar. The atmospheric aerosol extinction coefficient profiles in the lower troposphere were retrieved by Mie scattering lidar. The retrieved upper tropospheric aerosol extinction coefficient profiles provided one boundary value for Fernald method.