1. Geoscience and Environment Toulouse, UMR 5563 CNRS, University of Toulouse, 14 Avenue Edouard Belin, Toulouse, Francev
2. N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of RAS, Nab Severnoi Dviny 23, Arkhangelsk, Russia
3. BIO-GEO-CLIM Laboratory, Tomsk State University, 35 Lenina Pr., Tomsk, Russia