Articles | Volume 13, issue 4
The Cryosphere, 13, 1089–1123, 2019
https://doi.org/10.5194/tc-13-1089-2019
The Cryosphere, 13, 1089–1123, 2019
https://doi.org/10.5194/tc-13-1089-2019
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 et al.

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Cited articles

Aas, K. S., Gisnås, K., Westermann, S., and Berntsen, T. K.: A Tiling Approach to Represent Subgrid Snow Variability in Coupled Land Surface–Atmosphere Models, J. Hydrometeorol., 18, 49–63, https://doi.org/10.1175/JHM-D-16-0026.1, 2017. a
Aas, K. S., Martin, L., Nitzbon, J., Langer, M., Boike, J., Lee, H., Berntsen, T. K., and Westermann, S.: Thaw processes in ice-rich permafrost landscapes represented with laterally coupled tiles in a land surface model, The Cryosphere, 13, 591–609, https://doi.org/10.5194/tc-13-591-2019, 2019. a, b, c, d, e, f, g, h
Abolt, C. J., Young, M. H., and Caldwell, T. G.: Numerical Modelling of Ice-Wedge Polygon Geomorphic Transition, Permafrost Periglac., 28, 347–355, https://doi.org/10.1002/ppp.1909, 2017. a, b
Abolt, C. J., Young, M. H., Atchley, A. L., and Harp, D. R.: Microtopographic control on the ground thermal regime in ice wedge polygons, The Cryosphere, 12, 1957–1968, https://doi.org/10.5194/tc-12-1957-2018, 2018. a, b, c
AMAP: Snow, Water, Ice and Permafrost in the Arctic (SWIPA) – 2017, Arctic Monitoring and Assessment Programme, Oslo, Norway, oCLC: 1038467657, 2017. a
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.