北京奥运前期典型天气喇曼激光雷达观测研究  

Observation and Research on the Typical Atmosphere of Beijing Olympic Game by Raman Lidar

作　　者：佟彦超[1] 刘文清[1] 赵南京[1] 刘建国[1] 伍德侠[1] 董云升[1] 陆亦怀[1] 

机构地区：[1]中国科学院环境光学与技术重点实验室,中国科学院安徽光学精密机械研究所,合肥230031

出　　处：《光子学报》2010年第2期279-283,共5页Acta Photonica Sinica

基　　金：中国科学院知识创新工程重要方向项目(KGCX2-YW-119);国家高技术研究发展计划(863计划)(2006AA06A302)资助

摘　　要：以自行研制的双波长三通道拉曼激光雷达、振荡天平(PM10、PM2.5)、碳黑(BC)气溶胶分析仪及能见度仪相结合对"好运北京"2008年奥运会前期典型天气状况进行了测量与分析,给出了北京奥运主场馆上空气溶胶消光系数的垂直分布及其时空变化关系,计算了气溶胶的消光散射比,并分析了灰霾天气条件下大气能见度、气溶胶颗粒物PM10、PM2.5、BC及气溶胶消光系数垂直分布之间的相互关系.研究结果表明,灰霾天气条件下,大气能见度、颗粒物质量浓度与气溶胶颗粒物消光系数之间具有直接的相关性.The preceding typical atmosphere of Beijing Olymplc Game were measured and analyzed in combine with Raman Lidar, Tapered Element Oscillating Mierobalance （TEOM）,Black Carbon （BC） and Visibility analyzer from July 19 to July 28 in 2008. The vertical profile and spatio-temporal distribution of aerosol extinction coefficient was shown, and the ratio of aerosol extinction and backscatter was calculated. The relationship of visibility, PM10, PM2. 5, BC and aerosol extinction coefficient was analyzed with the data of visibility and mass concentration of particle matter at atmospheric haze. The result shows that there has direct correlation of visibility, mass concentration of particle matter and aerosol extinction coefficient. The technique and method can be provided for controlling the composite pollution of atmosphere based on data comparison, complementary and enrichment of different instrument, and the scientific basic and reference can be provided for treatment of urban air pollution.

关 键 词：拉曼激光雷达 气溶胶 消光系数 颗粒物质量浓度 能见度 

分 类 号：P407.5[天文地球—大气科学及气象学]