MODIS卫星遥感北京地区气溶胶光学厚度及与地面光度计遥感的对比

THE COMPARISON OF REMOTE SENSING AEROSOL OPTICAL DEPTH FROM MODIS DATA AND GROUND SUN-PHOTOMETER OBSERVATIONS

介绍MODIS卫星遥感气溶胶的方法 ,利用北京大学地面多波段太阳光度计的观测进行了对比 ,二者的相关性比较好。给出了描述北京地区气溶胶光学厚度分布的几幅图片。卫星遥感对于更好地研究空气污染提供了一种新手段 ,卫星遥感的气溶胶光学厚度弥补了地面观测空间覆盖不足的缺陷。

The method of remote sensing aerosols using MODIS data is introduced. The aerosol products from MODIS are compared with the results from the sun photometer observations at Peking University. The two data series fit very well with high correlations. Some pictures are shown which described the aerosol optical depth (AOD) distribution over Beijing. We found that the remote sensing from space had provided us a new way to understand the regional air pollution better, and the AOD data from satellite observations filled up the shortcoming of the data from ground observations with limited spatial coverage. Aerosol data from space are useful not only to the research on global and regional climate but also to the analysis of urban pollution.