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Erschienen in:
2015 | OriginalPaper | Buchkapitel
32. Satellite and Terrestrial Radar Interferometry for the Measurement of Slope Deformation
verfasst von : Tazio Strozzi, Hugo Raetzo, Urs Wegmüller, Jessica Papke, Rafael Caduff, Charles Werner, Andreas Wiesmann
Erschienen in: Engineering Geology for Society and Territory - Volume 5
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Abstract
Synergistic use of satellite and terrestrial radar interferometry was considered for the measurement of slope deformation in the Mattervalley (Canton of Valais, Switzerland). Highest rates of movement of more than 1 cm/day were measured only with terrestrial radar interferometry, because of the large time interval between satellite SAR observations. Summer TerraSAR-X and Cosmo-SkyMed interferograms as well as terrestrial radar interferometry campaigns repeated with a time interval of a few days were jointly considered for the study of landslides moving at rates of dm/year. Persistent scatterer interferometric analyses conducted with ERS-1/2, ENVISAT, Radarsat-2, TerraSAR-X and Cosmo-SkyMed images were finally used to detect the slowest moving landslides, with rates of movement below a few cm/yr in the line-of-sight direction.