Figure 4

Validation of AHI AE retrievals with AERONET over land and coast from May 2016 to February 2019. (a–c) Density scatter plots of AHI AE versus AERONET measurements over land. (d–f) Density scatter plots of AHI AE versus AERONET measurements over coast. The validation results of different AHI L3 AE datasets (AEmean, AEpure and AEmerged) are listed in columns 1, 2 and 3, respectively.