基于Fernald方法532nm激光雷达气溶胶探测试验

Aerosol detection experiment with 532nm lidar based on Fernald method

大气气溶胶浓度变化和迁移输送直接影响到人们的健康和生存环境,同时对许多大气物理过程都产生重要影响。基于对连续探测不同高度上气溶胶的分布,且时间和空间分辨率相对较高,以及观察大气气溶胶对流层的细化结构和变化过程的目的,研制一台532nm小型微脉冲米散射激光雷达,于2013年4月1日夜间进行观测实验获取数据,后期利用Fernald方法对探测数据进行反演分析,观测到北京夜间气溶胶的变化过程。

The changes in the atmospheric aerosol concentration and migration transport make a direct impact on people＇s health and living environment, and they also play an important role in the atmospheric physical processes. By the advantage of continuous detection the aerosol distribution of different height, high temporal-spatial resolution and ability of showing the refined structure and change process of the atmospheric aerosol tropospheric, Lidar is mainly used to measure aerosol at present. This experiment obtains the aerosol data by the newly developed 532nm Mie scattering MPL （Micro Pulse Lidar） on the night of April 1, 2013, then is used by Fernald method for the posterior work of processes and analyzes the data in the later work, and successfully observed the Aerosol changing process of the night in Beijing.