Anne Gaedeke¹, Moritz Langer^2,3, Julia Boike⁴, Eleanor Burke⁵, Jinfeng Chang⁶, Sebastian Ostberg¹, Wim Thiery⁷ and Thonicke Kirsten¹, (1)Potsdam Institute for Climate Impact Research, Potsdam, Germany, (2)Alfred Wegener Institute, Potsdam, Germany, (3)Humboldt University of Berlin, Department of Geography, Berlin, Germany, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Potsdam, Permafrost Research, Potsdam, Germany, (5)Met Office Hadley Centre, Exeter, United Kingdom, (6)IIASA International Institute for Applied Systems Analysis, Ecosystems Services and Management, Laxenburg, Austria, (7)Vrije University Brussel, Department of Hydrology and Hydraulic Engineering, Brussels, Belgium