Subglacial permafrost dynamics and erosion inside subglacial channels driven by surface events in Svalbard

Alexander, Andreas; Obu, Jaroslav; Schuler, Thomas V.; Kääb, Andreas; Christiansen, Hanne H.

doi:https://doi.org/10.5194/tc-14-4217-2020

Articles | Volume 14, issue 11

https://doi.org/10.5194/tc-14-4217-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-14-4217-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 14, issue 11

Research article

|

26 Nov 2020

Research article |

| 26 Nov 2020

Subglacial permafrost dynamics and erosion inside subglacial channels driven by surface events in Svalbard

Andreas Alexander, Jaroslav Obu, Thomas V. Schuler, Andreas Kääb, and Hanne H. Christiansen

Supplement

https://doi.org/10.5194/tc-14-4217-2020-supplement

Data sets

Raw data: Subglacial permafrost dynamics and erosion inside subglacial channels driven by surface events in Svalbard Andreas Alexander, Jaroslav Obu, Thomas V. Schuler, Andreas Kääb, and Hanne H. Christiansen https://doi.org/10.5281/zenodo.4116255

Short summary

In this study we present subglacial air, ice and sediment temperatures from within the basal drainage systems of two cold-based glaciers on Svalbard during late spring and the summer melt season. We put the data into the context of air temperature and rainfall at the glacier surface and show the importance of surface events on the subglacial thermal regime and erosion around basal drainage channels. Observed vertical erosion rates thereby reachup to 0.9 m d⁻¹.