[1
]Department of Geosciences; University of Oslo; Sem Saelands vei 1 Geologibygningen
0371 Oslo Norway
[2
]Department of Biological and Environmental Sciences; University of Gothenburg; 40530
Gothenburg Sweden
[3
]Department of Environmental and Biological Sciences; University of Eastern Finland;
Kuopio Finland
[4
]Department of Physical Geography; Stockholm University; Svante Arrhenius Väg 8 106
91 Stockholm Sweden
[5
]Center for Permafrost (CENPERM); Department of Geosciences and Natural Resource Management;
University of Copenhagen; Øster Voldgade 10 1350 Copenhagen Denmark
[6
]Department of Physical Geography and Ecosystem Science; Lund University; Sölvegatan
12 SE- 22362 Lund Sweden