FINDINGS OF PERSISTENT SCATTERER INTERFEROMETRY (PSI) FOR VILNIUS AREA, LITHUANIA

Abstract Ground surface deformations can be related to natural and anthropogenic activities. The availability of ground movement data from regular satellite observations, combined with the knowledge of local geology and geomorphology, can help to improve our understanding of subsidence and soil geotechnical settlement phenomena, as well as to distinguish them from structural deterioration of buildings, which in urban environments represent the most common type of radar targets (PS). In Lithuania ground surface deformations are usually related to landslides, karstic, suffusion processes and anthropogenic activities (particularly in urban areas), which can trigger destruction of buildings, communication life‐lines and soil consolidation. This paper is intended to illustrate considerable interpretative difficulties concerning the Persistent Scatterers Interferometry (PSI) results from synthetic aperture radar (SAR) data acquired over the Vilnius area (Lithuania) in the framework of TERRAFIRMA project. Protec...