Post-Little Ice Age rock wall permafrost evolution in Norway

Czekirda, Justyna; Etzelmüller, Bernd; Westermann, Sebastian; Isaksen, Ketil; Magnin, Florence

doi:https://doi.org/10.5194/tc-17-2725-2023

Articles | Volume 17, issue 7

https://doi.org/10.5194/tc-17-2725-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/tc-17-2725-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 7

Research article

|

13 Jul 2023

Research article |

| 13 Jul 2023

Post-Little Ice Age rock wall permafrost evolution in Norway

Justyna Czekirda, Bernd Etzelmüller, Sebastian Westermann, Ketil Isaksen, and Florence Magnin

Supplement

https://doi.org/10.5194/tc-17-2725-2023-supplement

Data sets

Data: Post-Little Ice Age rock wall permafrost evolution in Norway J. Czekirda, B. Etzelmüller, S. Westermann, K. Isaksen, and F. Magnin https://doi.org/10.5281/zenodo.8014400

Video supplement

Videos: Post-Little Ice Age rock wall permafrost evolution in Norway J. Czekirda, B. Etzelmüller, S. Westermann, K. Isaksen, and F. Magnin https://doi.org/10.5281/zenodo.8014756

Short summary

We assess spatio-temporal permafrost variations in selected rock walls in Norway over the last 120 years. Ground temperature is modelled using the two-dimensional ground heat flux model CryoGrid 2D along nine profiles. Permafrost probably occurs at most sites. All simulations show increasing ground temperature from the 1980s. Our simulations show that rock wall permafrost with a temperature of −1 °C at 20 m depth could thaw at this depth within 50 years.