1. Alfred Wegener Institute Helmhotz Centre for Polar and Marine Research (AWI) Potsdam Germany
2. Institute of GeosciencesUniversity of Potsdam Potsdam Germany
3. Melnikov Permafrost Institute, Siberian Branch, Russian Academy of Sciences Yakutsk Russia
4. Institute of Petroleum Geology and Geophysics, Siberian Branch, Russian Academy of Sciences Novosibirsk Russia
5. Earth Cryosphere Institute of Tyumen Scientific Center, Siberian Branch, Russian Academy of Sciences Russia
6. Tyumen State University Tyumen Russia