[1] Alfred Wegener Institute,Institute of Earth and Environmental Science
[2] Helmholtz Centre for Polar and Marine Research,Institute of Northern Engineering
[3] University of Potsdam,Geography Department
[4] University of Alaska Fairbanks,undefined
[5] Geophysical Institute,undefined
[6] University of Alaska Fairbanks,undefined
[7] Department of Cryosophy,undefined
[8] Tyumen State University,undefined
[9] Humboldt-Universität zu Berlin,undefined