介绍了AML-2车载式大气环境激光雷达系统结构和主要技术参数。详细阐述了测量气溶胶粒子消光系数和污染气体浓 度的基本原理和数据处理方法。 给出了2008年冬季大气参数合肥综合观测实验中获得的SO2 、NO2 、O3 和气溶胶的垂直分布。从观测结 果中可以看出,合肥冬季SO2 和NO2 的浓度比较小, O3 有明显的时间变化,主要是由于受到太阳辐射的影响。通过对气溶胶消光系数垂直廓线的分 析,可以看出边界层的高度有明显的日变化。分析了 这三种污染成分和气溶胶的空间分布规律,并结合天气和其它大气参数讨论了污染物分布状况形成的原因。

Schematic and system parameters of AML-2 mobile lidar for monitoring atmospheric pollutants are presented. Fundamental principles of lidar and its data processing methods are detailedly analyzed. The vertical profiles of SO2 , NO2 , O3 and aerosol over Hefei are presented. The vertical density of SO2 and NO2 are somewhat lower, but the vertical density of ozone has obvious time evolution and is relevant to the solar radiation. The height of boundary layer top has obvious diurnal variation. The characteristics of pollutants profiles are discussed with some meteorological parameters.