Sebastian H. Mernild, International Arctic Research Center and Water and Environmental Research Center, University of Alaska Fairbanks, fairbanks, AK 99775, United States ;
GLEN E. LISTON, Cooperative Institute for Research in the Atmosphere, Colorado State University, Colorado, USA, Fort Collins, CO 80523, United States ;
CHRISTOPHER A. HIEMSTRA, Cooperative Institute for Research in the Atmosphere, Colorado State University, Colorado, USA, FOrt Collins, CO 80523, United States ;