Seasonal and inter-annual evolution of the deformation of two Arctic landslides
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
Earth Surf. Dynam., 14, 729–761, https://doi.org/10.5194/esurf-14-729-2026, 2026
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.