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Near Surface Seismic Reflection Survey - A Comparison of P- and S-waves Vibratory Seismic Sources
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 25th European Meeting of Environmental and Engineering Geophysics, Sep 2019, Volume 2019, p.1 - 5
Abstract
Summary
This paper describes the results of five seismic reflection surveys planned to evaluate the capacity of different vibratory sources to image a target interface in 40 m depth. Between 2015 and 2017, we acquired a 48-channels seismic profile that serves as a reference. During the different phases of acquisition, we used a sledgehammer and four different light vibratory sources, able to emit P- and/or -S-waves. Then, we compared the performance of the sources used in term of resolution, S/N ratio, optimum stacking number and repeatability. One of the vibratory source and the sledgehammer in S-wave mode show good performance and are particularly successful sources to give high-resolution seismic profile of the near surface.
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