Landslide monitoring for risk mitigation by using corner reflector and satellite SAR interferometry: The large landslide of Carlantino (Italy)

摘要: Abstract The use of satellite Synthetic Aperture Radar Interferometry (InSAR) for monitoring ground instability due to landslide events, although advantageous over large spatial scales, still poses challenges related the recurrently complex kinematics phenomena or unfavorable settings examined areas with respect steep topography and vegetated land cover. This paper presents results obtained by using Multi-temporal InSAR techniques high resolution TerraSARX (TSX) data Carlantino landslide, located in Daunian Subapennine (Apulia region, southern Italy) on a slope overlooking water reservoir, subjected several investigations consolidation works. targets detected Persistent Scatterer (PSI) correspond urban structures peri-urban walls guard rails, while body is almost completely devoid stable targets, widespread vegetation variable To allow stability monitoring, network six Corner Reflectors (CR) was designed deployed test site. TSX images were analyzed both PSI processing procedure, based double difference analysis phase values CR pixels. Despite residual noise loss 2 CRs vandalism, allowed verifying upper central part body, relating indirectly movements at toe level fluctuations reservoir. Finally, this experiment suggests some recommendations guidelines planning deployment sites.