In this work, we present an integration of electrical and seismic data for the characterization of a coastal aquifer prone to saline intrusion. The main goal is to achieve a near-surface reconstruction of the unconsolidated lithotypes (mainly sands) and to image lateral transition of the hydrogeological parameters as saturation or permeability. To this end we select two areas within the Circeo National Park (Central Italy), where we combine electrical resistivity tomography (ERT) and time-domain induced polarization (TDIP) and multichannel analysis of surface waves (MASW) at site A and ERT and seismic refraction tomography (SRT) at site B. Through inversion of ERT/TDIP data for Cole-Cole parameters at site A, we achieve a firstapproximation prediction of the permeability, to be used for rapid hydro-geophysical screening of the coastal areas. On the other hand, the joint inversion of ERT and SRT data at site B allows to discern a lateral transition likely related to a variation of the groundwater level.
Characterization of a coastal aquifer prone to saline intrusion through integration of electrical and seismic data / Cercato, M.; De Donno, G.; Melegari, D.; Penta De Peppo, G.. - (2023), pp. 1-5. (Intervento presentato al convegno 2nd Conference on Hydrogeophysics 2023, Held at Near Surface Geoscience Conference and Exhibition 2023, NSG 2023 tenutosi a Edinburgh; United Kingdom) [10.3997/2214-4609.202320043].
Characterization of a coastal aquifer prone to saline intrusion through integration of electrical and seismic data
Cercato M.;De Donno G.
;Melegari D.;Penta De Peppo G.
2023
Abstract
In this work, we present an integration of electrical and seismic data for the characterization of a coastal aquifer prone to saline intrusion. The main goal is to achieve a near-surface reconstruction of the unconsolidated lithotypes (mainly sands) and to image lateral transition of the hydrogeological parameters as saturation or permeability. To this end we select two areas within the Circeo National Park (Central Italy), where we combine electrical resistivity tomography (ERT) and time-domain induced polarization (TDIP) and multichannel analysis of surface waves (MASW) at site A and ERT and seismic refraction tomography (SRT) at site B. Through inversion of ERT/TDIP data for Cole-Cole parameters at site A, we achieve a firstapproximation prediction of the permeability, to be used for rapid hydro-geophysical screening of the coastal areas. On the other hand, the joint inversion of ERT and SRT data at site B allows to discern a lateral transition likely related to a variation of the groundwater level.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.