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The Cryosphere An interactive open-access journal of the European Geosciences Union
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TC | Volume 13, issue 4
The Cryosphere, 13, 1089–1123, 2019
https://doi.org/10.5194/tc-13-1089-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
The Cryosphere, 13, 1089–1123, 2019
https://doi.org/10.5194/tc-13-1089-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 04 Apr 2019

Research article | 04 Apr 2019

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

Jan Nitzbon et al.
Data sets

Measurements in soil and air at Samoylov Station (2002-2018) J. Boike, J. Nitzbon, K. Anders, M. N. Grigoriev, D. Y. Bolshiyanov, M. Langer, S. Lange, N. Bornemann, A. Morgenstern, P. Schreiber, C. Wille, S. Chadburn, I. Gouttevin, and L. Kutzbach, https://doi.org/10.1594/PANGAEA.891142

Model code and software

CryoGrid/CryoGrid3: CryoGrid 3 set-up for ice-wedge polygons J. Nitzbon, M. Langer, S. Westermann, and L. Martin, L.: https://doi.org/10.5281/zenodo.2601973

Video supplement

Simulation of ice-wedge degradation under intermediate hydrological conditions J. Nitzbon, M. Langer, S. Westermann, L. Martin, K. S. Aas, and J. Boike https://doi.org/10.5446/39651

Simulation of ice-wedge degradation under draining hydrological conditions J. Nitzbon, M. Langer, S. Westermann, L. Martin, K. S. Aas, and J. Boike https://doi.org/10.5446/39652

Publications Copernicus
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.
We studied the stability of ice wedges (massive bodies of ground ice in permafrost) under recent...
Citation