Benoit Tremblay, University of Montreal, Physics department, Montreal, QC, Canada; Laboratory for Atmospheric and Space Physics, Boulder, CO, United States, Thierry Roudier, IRAP, Toulouse, France, Raphael Attié, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Jean-Francois Cossette, Michel Rieutord, Université de Toulouse, UPS-OMP, IRAP, Toulouse, France and Alain P Vincent, Universite de Montreal, Montreal, QC, Canada