Table 1:

Summary of scatterplots (not shown) of collocated MODIS and AERONET measurements of AOD at 0.55 μm, showing the performance of MYD04 (Aqua) and MOD04 (Terra) products relative to AERONET sunphotometer data. Reported variables include: N = Number of collocations; %EE, %>EE and %<EE = percentages of collocations falling within, above, and below EE envelopes; bias is average difference (MODIS-AERONET); and Slope, Y-Int, R² are parameters of least-squares linear regression.

Surface	Sensor	N	%EE	%>EE	%<EE	Bias	R2	RMSE	Slope	Y-INT
LAND	Aqua	76095	66.3	21.0	12.7	0.014	0.789	0.116	1.008	0.005
LAND	Terra	86751	61.4	30.9	7.7	0.041	0.801	0.120	1.007	0.031
OCEAN	Aqua	21264	81.6	14.9	3.5	0.023	0.741	0.107	0.911	0.032
OCEAN	Terra	23137	75.1	23.0	1.9	0.042	0.751	0.110	0.988	0.036