Table 2.

Average Surface Reflectance and Bias of VIIRS Surface Reflectance IP for Selected Sites^a

	M2 (436–454 nm)		M4 (545–565 nm)		M5 (662–682 nm)		M7 (846–885 nm)
Site Name	Reflectance	Bias	Reflectance	Bias	Reflectance	Bias	Reflectance	Bias
Sites that have a relatively good performance with biases
UCSB	0.042	−0.007	0.070	−0.006	0.084	−0.005	0.230	−0.005
Cuiaba-Miranda	0.033	0.004	0.069	0.000	0.084	−0.002	0.254	−0.006
Ispra	0.029	−0.013	0.055	−0.009	0.045	−0.006	0.297	−0.006
Evora	0.058	−0.004	0.106	−0.005	0.157	−0.007	0.300	−0.009
Konza	0.039	−0.004	0.077	−0.006	0.084	−0.007	0.302	−0.014
Alta Floresta	0.036	−0.003	0.078	−0.005	0.094	−0.003	0.321	−0.008
Bondville	0.027	−0.010	0.059	−0.004	0.052	−0.005	0.348	0.012
Lille	0.042	−0.015	0.081	−0.011	0.074	−0.009	0.355	−0.001
Sites that have a marginal performance
Table Mountain	0.082	−0.017	0.123	−0.014	0.156	−0.011	0.250	−0.008
Railroad Valley	0.123	−0.018	0.183	−0.015	0.229	−0.014	0.273	−0.010
Goddard Space Flight Center	0.038	−0.026	0.063	−0.018	0.053	−0.019	0.295	−0.008
Hamburg	0.032	−0.012	0.071	−0.011	0.060	−0.010	0.345	−0.007
Sites of poor performance
Beijing	0.058	−0.032	0.086	−0.022	0.086	−0.022	0.255	−0.009
XiangHe	0.039	−0.019	0.072	−0.017	0.062	−0.011	0.326	−0.007
Dakar	0.079	−0.028	0.132	−0.037	0.147	−0.028	0.328	−0.086
Banizoumbou	0.066	0.021	0.174	−0.005	0.298	−0.029	0.467	−0.049

^aThe analysis covered the period of January–October 2012 based on 50 × 50 km² subsets of VIIRS data gridded to 0.750 km resolution over the AERONET sites. The full analysis includes Accuracy or bias, Precision, and Total Uncertainty (APU) for different levels of surface brightness in each target area. Results here provide a cumulative evaluation for the average reflectance level.