Evaluation of sun photometer capabilities for retrievals of aerosol optical depth at high latitudes: The POLAR-AOD intercomparison campaigns

Mauro Mazzola, Robert S. Stone, Andreas Herber, Claudio Tomasi, Angelo Lupi, Vito Vitale, Christian Lanconelli, Carlos Toledano, Victoria E. Cachorro, Norm T. O'Neill, Masataka Shiobara, Veijo Aaltonen, Kerstin Stebel, Tymon Zielinski, Tomasz Petelski, José Pablo Ortiz de Galisteo, Benjamin Torres, Alberto Berjon, Philippe Goloub, Zhengqiang Li, Luc Blarel, Ihab Abboud, Emilio Cuevas, M. Stock, Karl-Heinz Schulz, Aki Virkkula