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Institutional Repository [SANDBOX]
Technical University of Crete
Technical University of Crete
EN
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| URI: | http://purl.tuc.gr/dl/dias/40FC8B57-B089-41F8-88DC-702055D75E4A | ||
| Year | 2024 | ||
| Type of Item | Master Thesis | ||
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| Bibliographic Citation | Pelagia-Bilio Markasioti, "Multichannel analysis of surface waves for imaging offshore Cultural Heritage in very shallow waters", Master Thesis, School of Mineral Resources Engineering, Technical University of Crete, Chania, Greece, 2024 https://doi.org/10.26233/heallink.tuc.99491 | ||
| Appears in Collections |
In archaeology, applied geophysics helps to discover new findings of our hidden cultural heritage. However, these methods have been particularly developed for terrestrial environments, leaving the shallow marine ones almost unexplored.In this master’s thesis, the effectiveness of Multichannel Analysis of Surface Waves (MASW) and Seismic Refraction Tomography (SRT) in imaging submerged and buried antiquities in a very shallow marine environment is examined. 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 can be reconstructed, both with the SRT and the MASW methods, provided that they are buried very close to the seabed. In addition, the shortest the spread of the receivers using the MASW method results in better outcome, concerning the location of the submerged targets. Overall, the modeling results were proved quite encouraging for the application of the above-mentioned seismic methods in real conditions.Furthermore, real data were collected in the study area of Stomio, which is located in south-eastern Crete, 6 km west of the city of Ierapetra. The application of the MASW method to real data was successful and the visualization of the man-made targets, observed on the seabed of study area, satisfactory. On the contrary, problems, concerning the accuracy of seismic data triggering, were faced in the application of, the SRT method, which were resolved during the data processing phase.In conclusion, this thesis can be considered as the base that the examined seismic methods can be successfully used in mapping submerged archaeological structures in shallow sea water environments.
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