Seismic refraction tomography and multichannel analysis of surface waves for imaging offshore Cultural Heritage in very shallow water: Results from a synthetic study and real data

P. Bilio Markasioti, George Kritikakis, Antonios Vafidis, Nikos Papadopoulos

Abstract

In archaeology, applied geophysics helps to discover new findings of our hiden cultural heritage. However, these methods have been particularly developed in terrestrial environments, leaving the shallow marine ones almost unexplored. This paper examines the effectiveness of Multichannel Analysis Surface Waves (MASW) and Seismic Refraction Tomography (SRT) οn imaging submerged and buried antiquities in a very shallow marine environment. For this purpose, synthetic seismic data sets were created to examine the optimum parameters for the most efficient visualization and interpretation of shallow underwater buried man made targets. The modeling results outlined that targets wider than 0.5m are reconstructed both with the SRT and the MASW methods, provided that they are buried close to the sea bottom. In addition, short spread of the receivers with the MASW provided the most satisfactory outcome concerning the location of the submerged targets. In general the modeling results are quite encouraging and together with the succesfull application of MASW method in real data can form the basis for establishing the applicability of these geophysical methods in mapping submerged archaeological structures in shallow water environments.

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IMEKO-MetroArchaeo-2023-186.pdf

DOI

10.21014/tc4-ARC-2023.186

IMEKO TC

TC4 - Measurement of Electrical Quantities

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