Detection and Monitoring of Slow Landslides Using Sentinel-1 Multi-temporal Interferometry Products

摘要: Landslide investigations can now benefit from high quality information obtainable using multi-temporal interferometry (MTI) techniques (e.g., PSInSAR, SBAS) and images acquired by satellite synthetic aperture radars (SAR). MTI is only little affected bad weather provide long-term (years), regular (weekly-monthly), precise (mm) measurements of ground displacements over large areas (thousands km2), with the possibility exploiting same series radar for regional to slope-scale investigations. Spatially dense be obtained (from hundreds thousands data per km2). Furthermore, offering global-scale coverage, improved temporal resolution 12 6 days) free imagery, new mission Sentinel-1 European Space Agency (ESA) guarantee wider more efficient application landslide In this work we demonstrate first time excellent potential based on detection monitoring slope instabilities affecting small hilltop towns in Apennine Mountains southern Italy. The done comparing results those ENVISAT (ESA retired few years ago). comparison shows that imagery a times higher density targets (measurement points) obtained. Thanks frequent measurement capability Sentinel-1, effective.