【摘要】 目前监测网中大部分SO2、NO2和O3监测设备为地基点式仪器。该种设备不能获得大气SO2、 NO2和O3的空间分布信息。 SO2、NO2和O3的空间分布数据在习惯上一般是通过球载探测仪来获取。但通过球载仪获得的数据时间和空间分辨率都较差。中科院安徽光机所已开发研制完成了车载测污激光雷达系统。该系统能进行大气SO2、NO2和O3进行三维空间扫描测量。利用该系统2001年12月27日至2002年 1月27日期间于北京市进行了大气SO2、NO2和O3的监测实验,首次给出了北京市近地面层大气SO2、 NO2和O3的激光雷达测量数据。测量数据与地面仪器的监测数据进行了比较,结果表明车载测污激光雷达系统的测量数据是合理可靠的。更多还原

【Abstract】 Most of SO2, NO2 and O3 monitors in the measurement network are point monitors at ground level that yield no information about the spatial distribution of SO2, NO2 and O3. The information is conventionally obtained with ballon-borne sensors. However, this method provides only poor temporal and spatial resolution. A mobile differential absorption lidar(DIAL) system for atmospheric pollution measurements has been developed at the Anhui Institute of Optics and Fine Mechanics, the Chinese Academy of Sciences. It allows 3D-measurements by using a steering unit, and can measure four kinds of pollutants in atmosphere, SO2, NO2, and O3. By using this lidar system, SO2, NO2 and O3 measurements have been performed in Bejing from December 27, 2001 to January 27, 2002. It was the first measurement of air pollution monitoring in Beijing by DIAL. Comparison with the simultaneous measurement performed with SO2, NO2 and O3 analyzers showed good agreement.更多还原