Fig. 3: Evaluation of the mean value of inversion AOD.
From: Using particle swarm optimization to improve visibility-aerosol optical depth retrieval method
The spatial distribution of observed AOD, M-Elterman AOD, PSO-M-Elterman AOD (a) and the monthly time series from January 2001 to October 2014 (b) when using MODIS data. The spatial distribution of observed AOD, M-Elterman AOD, PSO-M-Elterman AOD (c) and the monthly time series from January 2001 to October 2014 (d) when using MISR data.
