This study was conducted as part of the Malina scientific program funded by ANR (Agence Nationale de la Recherche), INSU-CNRS (Institut National des Sciences de l’Univers - Centre National de la Recherche Scientifique), the LEFE-CYBER program, CNES (Centre National d'Études Spatiales), the European Commission (Marie Skłodowska-Curie Actions), ESA (European Space Agency) and ArcticNet. US NSF grants 0713915 and 1504137 to Ronal Banner and 0229302, 0425582, 0713991 to Rainer M. W. Amon. US NASA (grant no. NNX07AR20G) awarded to Rick A. Reynolds and Dariusz Stramski. Natural Science and Engineerinng Council (Canada) Discovery and Northern supplement to Connie Lovejoy.