TXT-tool 2.039-3.3: Ground-based radar interferometry for landslide monitoring

Abstract

Landslide detection and monitoring represent a starting point to produce hazard and risk maps useful to define adequate prevention measures and to manage landslide emergencies. This paper reports the experience of our research group on the ground-based synthetic aperture radar interferometry. In particular, we discuss the use of a ground-based synthetic aperture radar interferometer (GB-InSAR) not only as a monitoring system but also as a tool to obtain spatial information on the landslide displacements to be integrated with rainfall data. This technique can be incorporated in an early warning system for the detection of slope acceleration patterns indicating the upcoming occurrence of a slope failure. The case studies reported demonstrate the capability of this technique to operate in different operative settings (i.e., different phenomena and geological framework) and for different aims (monitoring for prevention, early warning, and emergency assessment). This methodology has also been proved by national and regional authorities of civil protection in order to provide a real-time monitoring for emergency management.