【摘要】 利用NASA发布的MODISlevel2产品 ,结合在北京大学多波段太阳光度计观测的数据 ,分析检验了 2 0 0 1 0 1— 2 0 0 2 11北京地区大气气溶胶光学厚度 (5 5 0nm)的变化情况 ,结果表明 ,MODIS卫星遥感的气溶胶光学厚度具有一定的精度 ,在一定程度上可以反映气溶胶污染物较大范围的空间分布 ,对分析有关气溶胶源和区域性输送等问题提供了一个有效的手段更多还原

【Abstract】 Variation of aerosol optical depth(AOD,550?nm)in Beijing during January,2001 to November,2002 was analyzed using MODIS Level|2 information issued by NASA and ground|based observation using sun|photometer at Peking University.The results indicated that AOD retrieved from MODIS has the preciesion that could reflect the large|scale spatial distribution of atmospheric arosol pollution.It provides to be a new tool for better understanding of aerosol emission sources and subsequent aerosol transportation.更多还原