对流层气溶胶和水汽的车载激光雷达系统的探测

A mobile lidar system for aerosol and water vapor detection in troposphere with mobile lida

利用研制的一套具备昼夜测量能力的新型车载大气探测激光雷达系统为试验工程和环境监测提供应用研究。该激光雷达系统由水平测量模块和垂直测量模块构成,可通过接收激光与大气中气溶胶粒子、水汽分子、氮气分子作用的米散射和拉曼散射信号,反演大气水平能见度、垂直的气溶胶消光系数和水汽混合比。并可实现昼夜连续观测,实际测量结果与对比实验表明,大气水平能见度的测量误差小于10%,6 km以下垂直大气气溶胶的测量误差小于10%,水汽的测量误差最大不超过20%,能够满足大气参数测量的实际需求。

A new mobile lidar system with day and night capability has been developed for the application research of test engineering and environmental monitoring. The lidar system was composed of a horizontal measurement module and vertical measurement module, which can receive the Mie scattering and Raman scattering signal that come from the action of laser and aerosol particles, water vapor molecule, nitrogen in atmosphere. Atmospheric horizontal visibility, vertical aerosol extinction coefficient and water vapor mixing ratio can be retrieved. The lidar system can provide continuous observation day and night, the actual measurement results and comparison experiments show that the measurement error of atmospheric horizontal visibility is less than 10%, and the error of the vertical aerosol is below 10%under the height of 6 km, and the maximum error of water vapor is not exceeding 20%. The mobile lidar system can be provided to meet the various application requirements for atmospheric parameters measurement.