光学精密工程2017，Vol.25Issue(7)：1697-1704,8.DOI:10.3788/OPE.20172507.1697
微脉冲激光雷达反演气溶胶的水平分布
Retrieval of horizontal distribution of aerosol mass concentration by micro pulse lidar
摘要
Abstract
The distribution of aerosol over urban area is rapidly changed with space and time,thus common ground-based fixed-point monitoring can only obtain the mass concentration of aerosol on measuring points within the region,which roughly reflects the distribution of aerosol in the region.In order to determine the horizontal distribution of aerosol and pollutants over the urban area,based on the data obtained by Micro Pulse Lidar (MPL),particle counter,visiometer and particle mass concentration detector,a mathematical model in terms of aerosol extinction coefficient,particle spectrum distribution,mass concentration was established according to Mie scattering theory,inverting the horizontal distribution of aerosol mass concentration.Taking the measurement points as the center,the method can implement 360° horizontal scanning over 6 km,which exhibits large monitoring scope and high resolution.Furthermore,the horizontal distribution of aerosol was measured experimentally,obtaining the real-time distribution of aerosol mass concentration over 6 km on the horizontal path.It provides effective data supports for the research of pollution sources and dynamic changes of aerosol in urban regions.关键词
大气光学/气溶胶探测/激光雷达/空气污染监测/质量浓度Key words
atmospheric optics/aerosol detection/micro pluse lidar/air pollution monitoring/mass concentration分类
信息技术与安全科学引用本文复制引用
鲁先洋,李学彬,秦武斌,崔生成,刘庆,徐青山..微脉冲激光雷达反演气溶胶的水平分布[J].光学精密工程,2017,25(7):1697-1704,8.基金项目
国家自然科学基金资助项目(No.41205010,No.41305019) （No.41205010,No.41305019）
