Rapid warming and degradation of mountain permafrost in  Norway and Iceland

Etzelmüller, Bernd; Isaksen, Ketil; Czekirda, Justyna; Westermann, Sebastian; Hilbich, Christin; Hauck, Christian

doi:https://doi.org/10.5194/tc-17-5477-2023

Articles | Volume 17, issue 12

https://doi.org/10.5194/tc-17-5477-2023

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

https://doi.org/10.5194/tc-17-5477-2023

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

Articles | Volume 17, issue 12

Research article

|

22 Dec 2023

Research article |

| 22 Dec 2023

Rapid warming and degradation of mountain permafrost in Norway and Iceland

Bernd Etzelmüller, Ketil Isaksen, Justyna Czekirda, Sebastian Westermann, Christin Hilbich, and Christian Hauck

Data sets

Permafost data Norway Iceland Bernd Etzelmüller https://doi.org/10.11582/2023.00128

Norway, permafrost- and air temperature and snow depth Met Norway https://seklima.met.no/days/mean(air_temperature P1D),surface_snow_thickness/custom_period/SN15270,SN97710/en/1999-01-01T00:00:00+01:00;2023-12-31T23:59:59+01:00

Short summary

Permafrost (permanently frozen ground) is widespread in the mountains of Norway and Iceland. Several boreholes were drilled after 1999 for long-term permafrost monitoring. We document a strong warming of permafrost, including the development of unfrozen bodies in the permafrost. Warming and degradation of mountain permafrost may lead to more natural hazards.