PARASOL/GRASP retrieval of seasonal mean aerosol parameters for summer 2011. From left to right: Aerosol optical depth (or thickness, AOT) at 565 nm, Angström exponent (α), single scattering albedo (SSA) at 670 nm, and aerosol scale height. PARASOL/GRASP retrievals were implemented at the original 6-km resolution using all available PARASOL angular and polarimetric measurements (at 440, 490, 560, 670, 870 and 1020 nm), and using a single set of a priori constraints at the global scale (with no location-specific assumptions). DOI: https://doi.org/10.1525/elementa.331.f6