Affiliation: | a Nature Conservation and Plant Ecology Group, Wageningen University and Research Centre, Bornsesteeg 69, 6708 PD Wageningen, The Netherlands b RSL, Department of Geography, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland c Centre for Geo-information, Wageningen University and Research Centre, 6700 AA Wageningen, The Netherlands d National Snow and Ice Data Center (NSIDC), University of Colorado at Boulder, 449 UCB, Boulder, CO 80309-0449, United States e Jet Propulsion Laboratory, 4800 Oak Grove Drive, Pasadena, CA 91109, United States |