GNGTS 2024 - Atti del 42° Convegno Nazionale

Session 3.2 GNGTS 2024 context of investgatng landslides in urban areas, alternatve approaches may be more suitable. A signifcant contributon can be achieved through the combined utlizaton of remote sensing and in situ geophysical techniques (Perrone et al., 2006; de Bari et al., 2011). In this work, ground based SAR (GB-SAR) interferometry, electrical resistvity tomography (ERT) and passive seismic techniques have been integrated for investgatng the phenomenon afectng the Gorgoglione urban area, located in the south-western part of Matera Province (Basilicata Region, southern Italy) on a hilly area at about 800 m a.s.l. (Fig.1). The GB-SAR results provided informaton on the actvity status of the phenomenon. The ERT and the single-staton seismic ambient noise measurements allowed the reconstructon of the subsoil geological setng, the identfcaton of physical discontnuites correlated with lithological boundaries and sliding surfaces and the locaton of high water content areas. This informaton was used to assess the landslide residual risk, to plan and implement the risk mitgaton actons and to correctly design the remediaton works. Fig. 1 – Map of Gorgoglione test site (Basilicata region, southern Italy) with locaton of the in-situ geophysical measurements carried out in the urban area.