Using Data from Multiple SAR Sensors in Landslide Characterization: Case Studies from Different Geomorphological Contexts in Italy

An application of Differential Interferometry SAR (DInSAR) technique based upon C- and X-band SAR imagery is here presented. The aim of this study was to assess SAR technology's applicability and reliability for landslide detection and monitoring. To this purpose, two test sites have been selected, both located in Italy, which are affected by slow-moving landslides: Rovegliana, falling within the North-Eastern sector of Italian Alps, and Varco d'Izzo, which belongs to the Southern Apennines. Results from C-band (ERS and EnviSat) and X-band (COSMO-SkyMed and TerraSAR-X) imagery data allowed to identify several unstable areas previously undetected for the Rovegliana site, while the state of activity of Varco d'Izzo landslides was confirmed.