In collection 5 the estimated errors are:
Land: AOD * 0.15 +/- 0.05
Ocean: AOD * 0.05 +/- 0.03
These are global estimates from the entire data set. Errors in the product vary from region to region and season to season. For a site by site analysis see the maps in our “Validation” section. The Collection 6 product is currently being analyzed and error estimates have not yet been published.