Articles | Volume 13, issue 4
Research article
 | Highlight paper
04 Apr 2019
Research article | Highlight paper |  | 04 Apr 2019

Pathways of ice-wedge degradation in polygonal tundra under different hydrological conditions

Jan Nitzbon, Moritz Langer, Sebastian Westermann, Léo Martin, Kjetil Schanke Aas, and Julia Boike


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Short summary
We studied the stability of ice wedges (massive bodies of ground ice in permafrost) under recent climatic conditions in the Lena River delta of northern Siberia. For this we used a novel modelling approach that takes into account lateral transport of heat, water, and snow and the subsidence of the ground surface due to melting of ground ice. We found that wetter conditions have a destabilizing effect on the ice wedges and associated our simulation results with observations from the study area.