Global variability of aerosol optical properties retrieved from the network of GAW near-surface observatories

Aas, Wenche; Fiebig, Markus; Gliss, Jonas; Keywood, Melita; Kim, Sang-Woo; Labrador, Lorenzo; Laj, Paolo; Mayol-Bracero, Olga; Mortier, Augustin; Myhre, Cathrine Lund; Ogren, John A.; Pandolfi, Marco; Petäjä, Tuukka; Putaud, Jean-Philippe; Schulz, Michael; Wiedensohler, Alfred