Table 2.

Predicted-AOD 0.47 μm and 0.55 .55 obtained from Stage-2 RF models were regressed against measured Satellite-AOD 0.47 μm and 0.55 μm in a linear regression model. The performance was evaluated using OOB CV together with RMSE (μg /m³), intercept (μg/m³), and slope (μg /m³).

Stage-2 OOB CV
	Predicted-AOD 0.47 μm				Predicted-AOD 0.55 μm
	R2	RMSE	Inter.	Slope	R2	RMSE	Inter.	Slope
2008	0.977	0.010	–0.001	1.009	0.977	0.007	–0.001	1.009
2009	0.976	0.010	–0.001	1.010	0.976	0.007	–0.001	1.010
2010	0.968	0.009	–0.001	1.013	0.968	0.007	–0.001	1.013
2011	0.988	0.010	–0.001	1.005	0.988	0.007	0.000	1.005
2012	0.980	0.010	–0.001	1.008	0.981	0.007	–0.001	1.008
2013	0.984	0.010	–0.001	1.007	0.984	0.007	–0.001	1 006
2014	0.970	0.009	–0.001	1.012	0.970	0.007	–0.001	1.012
2015	0.972	0.009	–0.001	1.011	0.973	0.007	–0.001	1.011
2016	0.975	0.009	–0.001	1.010	0.975	0.007	–0.001	1.010
2017	0.963	0.009	–0.001	1.015	0.963	0.007	–0.001	1.014
2018	0.969	0.010	–0.001	1.01113	0.969	0.007	–0.001	1.013
Mean	0.978	0.010	–0.001	1.009	0.9778	0.007	–0.001	1.009