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Ground-based monitoring of high-risk landslides through joint use of laser scanner and interferometric radar

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Terrestrial laser scanner (TLS) and interferometric synthetic aperture radar (InSAR) allow the acquisition of data on an observed surface with high spatial sampling rate. The data provided by TLS observation of a landslide ground surface can be used to generate a very detailed digital model of this surface, and multitemporal observations with TLS or continuous or multitemporal observation with InSAR can provide a reliable displacement map. In order to acquire useful information about the analogies, differences, and capabilities, as well as limitations of these techniques, a joint experimentation of TLS and InSAR was performed over two years in various sites in the Italian Alps. The results have indicated that these techniques can provide high-quality data, can be very useful in the monitoring intended for the mitigation of hydrogeological risk in a wide range of cases, and must be supported by a topographical georeferenced network.
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Document Type: Research Article

Affiliations: 1: University of Padua, Department of Geosciences, Via Giotto, 1, I-35137 Padova, Italy 2: University of Florence, Department of Electronics and Telecommunications, Via S. Marta, 3, I-50139 Firenze, Italy 3: University of Ferrara, Department of Architecture, Via Quartieri, 8 I-44100 Ferrara, Italy 4: National Research Council, IRPI, Corso Stati Uniti, 4, I-35127 Padova, Italy

Publication date: 2008-01-01

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