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Ground penetrating radar for inspecting the core and base of coastal sand dunes

Citation:

Alexopoulos, J. D., Giannopoulos, I. K., Mitsika, G. S., Gkosios, V., Konsolaki, A., Vassilakis, E., & Poulos, S. E. (2023). Ground penetrating radar for inspecting the core and base of coastal sand dunes. In 2nd International Scientific Conference on Design and Management of Port Coastal and Offshore Works (pp. 97-101). presented at the May 24-27 2023, Thessaloniki, Greece.
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Date Presented:

May 24-27 2023

Abstract:

The coastal environment of the west and south coast of Peloponnesus, Greece is characterized as an essentially tideless coastal environment exposed to high wave activity. Regarding the identification, the thickness and characteristics of the uppermost substratum of the selected coastal zones, at Hellonitis, Kyparissiakos and Messiniakos Gulfs, a detailed geophysical research was carried out. The geophysical survey aims to determine the thickness and the characteristics of the upper substratum of the selected coastal area, leading to the quantification of the sediment budget; the latter is considered essential to address potential coastal erosion. For this reason, the geophysical techniques of Electrical Resistivity Tomography (ERT) and Ground Penetrating Radar (GPR) were implemented to profiles normal and parallel to the shoreline. The geophysical results reveal the presence of the interface between the dry and wet sand deposits, along with the structure and the downward extension of the coastal material.