Activities of the Aerosol Clouds and Trace gases European Research Infrastructure (ACTRIS) Expert Group on Satellite Cal/Val

Balis, Dimitris; Kazadzis, Stelios; Amiridis, Vassilis; Apituley, Arnoud; Baars, Holger; Dandocsi, Alexandru; Putaud, Jean-Philippe; Höhler, Kristina; Liberti, Gianluigi; Marenco, Franco; Marinou, Eleni; Nicolae, Doina; Papagiannopoulos, Nikolaos; Pfitzenmaier, Lucas; Rodriguez-Gomez, Alejandro; Stebel, Kerstin; Sicard, Michael; Verhoelst, Tijl; Wandinger, Ulla; Wegener, Robert