GPR and ERT Investigations in Urban Areas: the Case-Study of Matera (Southern Italy)
2020
Jessica Bellanova | Giuseppe Calamita | Ilaria Catapano | Alessandro Ciucci | Carmela Cornacchia | Gianluca Gennarelli | Alessandro Giocoli | Federico Fisangher | Giovanni Ludeno | Gianfranco Morelli | Angela Perrone | Sabatino Piscitelli | Francesco Soldovieri | Vincenzo Lapenna
This paper deals with a geophysical survey carried out in some critical urban areas of the historical city of Matera (Southern Italy). Matera has a very complex shallower stratigraphy characterized by both anthropic and natural &ldquo:targets&rdquo: and is affected by geological instability. Therefore, Matera represents an ideal and very challenging outdoor laboratory for testing novel approaches for near-surface explorations in urban areas. Here, we present the results of a near-surface survey carried out by jointly applying Ground Penetrating Radar (GPR) and Electrical Resistivity Tomography (ERT) methods. The survey was implemented in three different critical zones within the urban area of Matera (Piazza Duomo, Piazza San Giovanni, Villa dell&rsquo:Unità: d&rsquo:Italia). These test sites are of great interest for archaeological and architectonical studies and are affected by ground instability phenomena due to the presence of voids, cavities and other anthropic structures. The effectiveness of the survey was enhanced by the exploitation of advanced 3D tomographic approaches, which allowed to achieve 3D representation of the investigated underground and obtain information in terms of both the location and the geometry of buried objects and structures and the characterization of shallow geological layers. The results of the surveys are now under study (or have attracted the interest) of the Municipality in order to support smart cities programs and activities for a better management of the underground space.
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