Landslide Activity Maps Generation by Means of Persistent Scatterer Interferometry

摘要: In this paper a methodology is proposed to elaborate landslide activity maps through the use of PS (Persistent Scatterer) data. This illustrated case study Tramuntana Range in island Majorca (Spain), where ALOS (Advanced Land Observing Satellite) images have been processed Persistent Scatterer Interferometry (PSI) technique during period 2007–2010. The map provides, for every monitored landslide, an assessment visibility according relief, land use, and satellite acquisition parameters. Landslide displacement measurements are projected along steepest slope, order compare velocities with different slope orientations. Additionally, ground motion also generated, based on active clusters not included within any known phenomenon, but even moving, potentially referred unmapped landslides or triggered by other kinds geomorphological processes. range, 42 were identified as active, four being potential produce moderate damage, intersecting road Ma-10, which represents most important and, thus, main element at risk. attest reliability measured displacements represent dynamics, confidence degree evaluation proposed. test site, seven exhibit high degree, medium 93 them, low 51. A was attributed 615 detected cause their mechanism triggering unknown. From total amount, 18 them intersect representing further hazardous areas. outcomes work reveal usefulness environmental planning activities, exportable radar data settings.