气溶胶质量浓度空间垂直分布的反演方法

用激光雷达反演气溶胶质量浓度的空间垂直分布是环境监测领域的重点研究内容之一.利用激光雷达测量得到的地面消光系数和振荡天平获得的地面质量浓度,建立起质量浓度与消光系数之间的关联,再通过消光系数的垂直分布反演质量浓度的垂直分布.基于这一思想,采用两种模型进行了拟合和相关性分析.实验表明用这两种模型反演的质量浓度空间分布相关性好,数据量级与实际相符,具有一定的可信度.模型易于实现,计算简单,可实现在线实时检测.

Retrieval Method for Aerosol Mass Concentration Vertical Distribution

Retrieval method for aerosol mass concentration vertical distribution with lidar is one of research contents in environment monitoring fields.Making use of the extinction coefficients on ground gained by lidar and corresponding mass concentrations gotten by the tapered element oscillating microbalance(TEOM),the relationship between extinction coefficient and mass concentration can be disclose,then the mass concentration vertical distribution can be retrieved through the extinction coefficient vertical distribution. Based on it,two models are adopted,and confirmed by some experiments.It is indicated that the aerosol mass concentration vertical distributions retrieved by both the models are consistent with each other,and consistent with facticity.The models are maneuverable and simple,and can monitor online and real-time.