Fig. 1. AOD Retrieve flow chart

Fig. 2. The variation distribution of aerosol parameters (AOD, asymmetric factor and single scattering rate) at 470 nm and 650 nm in Xianghe station and Beijing station

Fig. 3. The regression analysis of aerosol Asymmetry Factor and AOD at different bands

Fig. 4. The regression analysis of Single Scattering Albedo and AOD at different bands

Fig. 5. True color images, MERSI2 AOD and MODIS AOD on 8 March, 2018

Fig. 6. AOD at different bands comparison between FY3D/MERSI2 and AERONET

Fig. 7. The distribution of Aerosol Pollution Process in Beijing-Tianjin-Hebei and Its Surrounding Areas from 9 to 14 March 2018 using FY3D/MERSI2 data