Investigating Long-Term Changes in Willow Cover and Greenness Using Multispectral Satellite and UAV Data in Western Siberia
Timo Kumpula1, Elias Koivisto2, Anton Kuzmin1, Logan T. Berner3, Bruce C. Forbes4, Jeffrey Kerby5, Tiina Kolari6, Pasi Korpelainen6, Anna Skarin7, Teemu Tahvanainen6, Mariana Verdonen8 and Miguel Villoslada6, (1)University of Eastern Finland, Department of Geographical and Historical Studies, Joensuu, Finland, (2)University of Eastern Finland, Department of Historical and Geographical Studies, Joensuu, Finland, (3)Northern Arizona University, SICCS, Flagstaff, United States, (4)University of Lapland, Arctic Centre, Rovaniemi, Finland, (5)Arctic Research Centre, Department of Biology, Aarhus University, Aarhus, Denmark, (6)University of Eastern Finland, Joensuu, Finland, (7)Swedish University of Agricultural Studies, Department of Applied Animal Science and Welfare, Uppsala, Sweden, (8)Agricultural University of Iceland, Environmental and Forest Sciences, Reykjavik, Iceland