介绍了位于南京北郊的拉曼散射激光雷达的基本结构,描述了使用拉曼散射激光雷达反演平流层大气气溶胶消光系数廓线的数据处理方法。重点研究了南京北郊2011-12-08与2011-12-09晚间平流层气溶胶观测数据,对拉曼散射激光雷达距离矫正信号进行4种不同阈值的小波去噪,选择出合适的阈值,然后利用反演原理公式,得到平流层大气气溶胶消光系数廓线,分析了平流层大气气溶胶消光系数的变化特征。

Basic structure of Raman scattering lidar in northern suburb of Nanjing is introduced. Treatment method of the data of stratospheric atmospheric aerosol extinction coefficient profiles inversed by Raman scattering lidar principle is described. Stratospheric aerosol observational data on December 8 and 9, 2011 in northern suburb of Nanjing are emphatically processed. The Raman scattering lidar distance correction signal is denoised by wavelet under four different thresholds. Appropriate threshold is used to obtain the stratospheric atmospheric aerosol extinction coefficient profile by the formula of inversion principle. Variation characteristics of aerosol extinction coefficients in the stratosphere are analyzed at the same time.