AATSR-DV

The AATSR-Dual View (DV) algorithm uses the atmospheric reflectance at TOA measured by AATSR at two viewing angles, to eliminate the effect of the surface reflectance on the reflectance measured at the top of the atmosphere (TOA). The path reflectance is retained and used with the calculated reflection at TOA due to a mixture of aerosol models to retrieve the AOD. A large number of aerosol mixtures are used to obtain the most appropriate aerosol mixture based on error minimization using all suitable wavelengths. To account for interactions, the TOA reflection is calculated including molecular effects. The final result is the AOD at 0.55, 0.67 and 1.6µm over land; over ocean the AOD at 0.55, 0.67, 0.86 and 1.6µm is retrieved using a single view. The retrieval is currently done on either individual pixels or for 10x10 pixels.

Example result / latest result (if near-real time)