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

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