GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 3.2 ___ GNGTS 2023 the river water interacts with the surrounding subsoil, while the EM data sets define the dynamic system between the saltwater penetration and the freshwater in the river detecting the salty plume front. The first results highlight the great potential of the proposed geophysical approach to monitor the saline plume during crisis periods. References Paepen Marieke et al., Combining resistivity and frequency domain electromagnetic methods to investigate submarine groundwater discharge in the littoral zone. Hydrol. Earth Syst. Sci., 24, 3539–3555, 2020 Xu, Z., Tong, J., Hu, B.X., Yan, Z., Mapping and monitoring seasonal and tidal effects on the salt-freshwater interface using electrical resistivity tomography techniques, Estuarine, Coastal and Shelf Science (2022), doi: https://doi.org/10.1016/j.ecss.2022.108051 Rizzo E. et al., Geoelectrical and electromagnetic monitoring for saltwater penetration on the Po di Goro river (Italy). Jochum, B. (2022): GELMON 2022 6th International Workshop on Geoelectrical Monitoring: Book of Abstract: November 22nd-November 23rd, 2022- Berichte der Geologischen Bundesanstalt, 144, 15, Wien. Fig.1 : a) Electrical Resistivity Tomography carried out on Mesola site on the Po di Goro river in two different days; b) the ERT cable on the river; c) localization of the FDEM path on the Po di Goro river; d) Apparent conductivity acquired in two different days.