Electrical resistivity tomography (ERT) and ground penetrating radar (GPR) surveys were conducted in the Anghelu Ruju hypogeic necropolis in northern Sardinia (Italy). The main purpose was to calibrate both techniques on a known and already dug tomb. After the calibration the survey was extended to a neighbouring unexplored area with the aim to demonstrate new hypogeic structures. A comparison of the high‐resolution GPR and ERT models was made, and their results are discussed in terms of providing a more complete picture that would not be attainable using a single method. Several anomalies were identified that might represent previously unknown rock‐cut tombs and burial sites in the central part of the investigated area.

No abstract

We report here a multimethod geophysical investigation of the Sant'Imbenia Roman villa archaeological site in northern Sardinia (Italy). The main objective of this study is optimizing a non-invasive approach to reconstruct rapidly the geometry of coastal sites. A hitherto unexplored area of approximately 700 m 2 , adjacent to excavations, was investigated using ground-penetrating radar (GPR) and electrical resistivity tomography (ERT) surveys. The Sant'Imbenia villa is close to the present-day shoreline and subject to very high erosion rates and burial. A comparison of the highresolution GPR and ERT models was made, and their integrated results are discussed in terms of providing a more complete picture that would not be attainable using a single method. Geophysical analysis combined with archeological prospecting has revealed buried buildings north of the excavated part of the archaeological site. The results show that in this coastal environment ERT survey provided the most accurate reconstruction at the deeper wet levels of investigation.

The Jeffara Plain, in Medenine region (SE Tunisia), suffers of dry climatic conditions. Lower Triassic sandstones widely outcrop within the Plain and they host a strategic aquifer exploited for drinking and irrigation purposes. An insufficient natural recharge and an increasing water demand have led to an overexploitation of such aquifer. Water harvesting techniques and particularly Managed Aquifer Recharge (MAR) systems can be useful tools for restoring groundwater resources. To better design the MAR system and to characterize the local geological setting, an Electrical Resistivity Tomography survey was conducted in six selected sites in the Jeffara Plain, within the frame of EU WADIS-MAR project

No abstract