Articles | Volume 17, issue 7
https://doi.org/10.5194/tc-17-2725-2023
https://doi.org/10.5194/tc-17-2725-2023
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

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Cited articles

Allen, S. K., Gruber, S., and Owens, I. F.: Exploring Steep Bedrock Permafrost and its Relationship with Recent Slope Failures in the Southern Alps of New Zealand, Permafrost Periglac., 20, 345–356, https://doi.org/10.1002/ppp.658, 2009. 
Andreassen, L. M., Huss, M., Melvold, K., Elvehøy, H., and Winsvold, S. H.: Ice thickness measurements and volume estimates for glaciers in Norway, J. Glaciol., 61, 763–775, https://doi.org/10.3189/2015JoG14J161, 2015. 
Aune-Lundberg, L. and Strand, G.-H.: CORINE Land Cover classes. Examination of the content of CLC classes in Norway, Norwegian Forest and Landscape Institute, Ås, Norway, Report 05/2010, 42 pp., 2010. 
Berrisford, M. S.: Evidence for enhanced mechanical weathering associated with seasonally late-lying and perennial snow patches, Jotunheimen, Norway, Permafrost Periglac., 2, 331–340, https://doi.org/10.1002/ppp.3430020408, 1991. 
Berthling, I. and Etzelmüller, B.: The concept of cryo-conditioning in landscape evolution, Quaternary Res., 75, 378–384, https://doi.org/10.1016/j.yqres.2010.12.011, 2011. 
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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.