Study On Inverse Parameters Of Lidar And Optical Features Of Aerosol In Lanzhou

When Klett method is used to calculate the inverse aerosol extinction coefficient in the application of Lidar, aerosol backscattering extinction logarithm ratio k is the resource of error for the result. In order that the result can be closer to the true value, this paper utilizes the Lidar detection materials, and incorporates the atmosphere visibility to predict the range of the inverse Parameters k in different weather conditions, and base on the result, we applies the corresponding CE318 to further determined this inverse Parameters k. Meanwhile, the paper investigates the vertical distribution rule of aerosol of the Lanzhou, and probes into the daily change features of the planetary boundary layer in winter of the Lanzhou. The results are summed up as follows:1. The Lidar detection data incorporate the atmosphere visibility to predict the range of the inverse Parameters k, In the process of inversion, selection of inverse Parameters k has a large effect on extinction coeficient. With regard to the sunny day, the range of k is 0.8≤k≤1.0; when the atmosphere is polluted, 0.7