1. Permafrost Research Section Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam Germany
2. Institute of Geosciences University of Potsdam Potsdam Germany
3. Department of Geosciences University of Oslo Oslo Norway
4. Geophysical Institute University of Alaska Fairbanks Fairbanks AK USA
5. Institute of Physical‐Chemical and Biological Problems of Soil Science Russian Academy of Sciences Pushchino Russia
6. Department of Civil, Geo, and Environmental Engineering Technical University of Munich Munich Germany
7. Melnikov Permafrost Institute Siberian Branch of the Russian Academy of Sciences Yakutsk Russia