2009-2020年全球1km气溶胶光学厚度逐日产品

数据集包括2009-2020年全球范围内1km、每日的550nm处的大气气溶胶光学厚度，描述了气溶胶对光的削减作用。550nm处的大气气溶胶光学厚度是气溶胶最重要的参数之一，也是确定气溶胶气候效应的重要因素。该产品利用FY3/MERSI 光学波段反射率数据，利用结合6S模型模拟得到的查找表逐像元反演得到。

This dataset provides global daily 1-kilometer resolution aerosol optical depth (AOD) at 550 nm covering the period 2009 to 2020, which characterizes the light attenuation effect caused by atmospheric aerosols. AOD at 550 nm is one of the most crucial parameters of atmospheric aerosols and a key factor for determining the climatic impacts of aerosols. This product is retrieved pixel-by-pixel using the reflectance data of FY3/MERSI optical bands and the look-up tables simulated with the 6S model.