Two-wavelength Lidar inversion algorithm for determining planetary boundary layer height

摘要

Highlights?Based on the particles clustering to determine the top of the boundary layer.?The proposed algorithm can overcome the effects of complex aerosol layers.?The proposed algorithm has the better reliability and stability.AbstractThis study proposes a two-wavelength Lidar inversion algorithm to determine the boundary layer height (BLH) based on the particles clustering. Color ratio and depolarization ratio are used to analyze the particle distribution, based on which the proposed algorithm can overcome the effects of complex aerosol layers to calculate the BLH. The algorithm is used to determine the top of the boundary layer under different mixing state. Experimental results demonstrate that the proposed algorithm can determine the top of the boundary layer even in a complex case. Moreover, it can better deal with the weak convection conditions. Finally, experimental data from June 2015 to December 2015 were used to verify the reliability of the proposed algorit