Delaloye, R. and Strozzi, T. and Lambiel, C. and Perruchoud, E. (2008)
Landslide-like development of rockglaciers detected with ERS-1/2 SAR interferometry
- Cite key
- Rockglaciers are permanently frozen sediments supersaturated with ice deforming steadily and slowly on periglacial mountain slopes. The frequency of alpine rockglaciers affected by “surge” (landslide-like) processes has increased during the last two decades probably in connexion with a signficant acceleration of rockglaciers deformation rate consecutive to permafrost warming. Flow velocities up to several metres per year can be observed. The analysis of 1-day ERS-1/2differential SAR interferograms available for the period1995-1999 has proved to be an adequate tool for detecting such very rapidly moving rockglaciers.