1. Centre d’Applications et de Recherche en Télédétection, Université de Sherbrooke, Quebec, Canada
2. Centre for Northern Studies, Université Laval, Quebec, Canada
3. Cryospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA
4. Goddard Earth Sciences Technology and Research Studies and Investigations, Universities Space Research Association, Columbia, MD, USA