Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 14, issue 5
Articles | Volume 14, issue 5
https://doi.org/10.5194/esurf-14-729-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-14-729-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 14, issue 5
Research article
 | 
08 Sep 2026
Research article |  | 08 Sep 2026

Seasonal and inter-annual evolution of the deformation of two Arctic landslides

Andreas Aspaas, Grégory Bievre, Pascal Lacroix, Nadège Langet, Juditha Aga, Ingrid Skrede, Lene Kristensen, Bernd Etzelmüller, and François Renard

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Latest update: 08 Sep 2026
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Short summary
Climate change increases landslide risk in cold regions. We analyzed 12 years of GPS, borehole, water, and seismic data from two landslides in Arctic Norway, one with permafrost and one without. Both accelerate in spring and autumn due to water infiltration. One slip zone shows increasing snowmelt sensitivity while seismic data reveal seasonal stiffness changes. Results advance understanding of water-driven landslide dynamics in Arctic climates.
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