2020年全球AOD产品数据集

提供2020年全球覆盖的公里级气溶胶光学厚度月均值数据，气溶胶光学厚度（AOD）是表征大气气溶胶消光能力的重要参数，代表某地大气垂直总柱中的气溶胶对电磁波的衰减能力，无量纲，该值会随波长不同而发生变化，变化特征一般符合对数关系。

This dataset provides monthly mean kilometer-scale aerosol optical depth (AOD) data with global coverage in 2020. Aerosol optical depth (AOD) is a critical parameter characterizing the extinction capability of atmospheric aerosols. It denotes the capacity of aerosols within the total vertical atmospheric column of a given location to attenuate electromagnetic waves, and is dimensionless. This value varies with changes in wavelength, and its variation pattern generally follows a logarithmic relationship.