CALIPSO星载激光雷达气溶胶分层光学厚度与青岛市空气污染指数的相关性  

Correlation Between Aerosol Layer Optical Depth from CALIPSO Satellite Lidar and Air Pollution Index in Qingdao

作　　者：齐海[1] 陈文忠[1] 

机构地区：[1]中国海洋大学信息科学与工程学院海洋遥感研究所,山东青岛266100

出　　处：《大气与环境光学学报》2015年第6期463-471,共9页Journal of Atmospheric and Environmental Optics

基　　金：国家自然科学基金(41375142)资助

摘　　要：卫星遥感柱状气溶胶光学厚度已经被广泛应用于与地面空气污染数据的对比研究,但由于缺乏关于气溶胶垂直结构的资料,对研究二者的相关性产生了一定的影响。为了弥补这一不足,通过利用CALIPSO星载激光雷达后向散射系数垂直剖面数据,对青岛市的大气边界层进行了分析,发现其边界层通常在3 km以下。因此,将2010年1月至2012年12月的CALIPSO气溶胶分层产品中3 km以下分层的气溶胶光学厚度与青岛市气象局发布的空气污染指数进行了相关性分析,得到了比柱状气溶胶光学厚度更高的相关系数,验证了CALIPSO卫星遥感气溶胶分层数据产品在大气污染监测方面的有效性。The column aerosol optical depth from satellite remote sensing was widely used for the comparison with ground-based observations of air pollution data, but there were influence on the correlation coefficients between them due to the lack of information about the aerosol vertical profile. The backscatter coefficients profiles from CALIOP sensor onboard CALIPSO satellite were used to determine the atmospheric boundary layer （ABL） in Qingdwo. It was found that the ABL was usually about 3 km in Qingdao. Then the aerosol optical depth with ABL less than 3 km in the CALIPSO lidar aerosol layer product were extracted to do correlation analysis with the ground-based observations of air pollution index （API） data in Qingdao. The result showed higher correlation coefficients compared with the column aerosol optical depth

关 键 词：CALIPSO激光雷达 气溶胶光学厚度 气溶胶分层产品 大气边界层 空气污染指数 

分 类 号：X513[环境科学与工程—环境工程]