thermokarst and yedoma upland deposits on Sobo-Sise Island and Bykovsky Peninsula. (Graphic: Alfred-Wegener-Institut) Matthias Fuchs, Guido Grosse, Jens Strauss, Frank Günther , Mikhail Grigoriev, Georgy [...] Permafrost Regions Schematic workflow from satellite image to lake change statistics (Photo: Alfred-Wegener-Institut) Ingmar Nitze, Guido Grosse, Benjamin M. Jones, Christopher D. Arp, Mathias Ulrich, [...] based on almost 3 years continuous measurements (from 11 May 2012 to 27 April 2015) (Photo: Alfred-Wegener-Institut) Lutz Schirrmeister, Georg Schwamborn, Pier Paul Overduin, Jens Strauss , Margret C