Near-surface characterization using urban traffic noise recorded by fiber-optic distributed acoustic sensing

Shao, Jie and Wang, Yibo and Zheng, Yikang and Yao, Yi and Wu, Shaojiang and Yang, Zesheng and Xue, Qingfeng (2022) Near-surface characterization using urban traffic noise recorded by fiber-optic distributed acoustic sensing. Frontiers in Earth Science, 10. ISSN 2296-6463

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Abstract

The recently developed fiber-optic distributed acoustic sensing (DAS) technology has attracted widespread attention in engineering applications, oil exploration, and seismological research. Compared with the conventional geophones, DAS can acquire high-resolution data due to a dense sampling and can be deployed conveniently in the complex acquisition environment. These advantages of DAS make it promising for near-surface characterization in the urban city. In this study, a DAS line was utilized to record traffic noise seismic data in the urban city and to investigate the near-surface characterization. Seismic surface waves were reconstructed from the acquired traffic noises using seismic interferometry. Thereafter, we obtain the near-surface shear wave velocity profile below the DAS line by surface wave dispersion curve inversion using a Bayesian Markov Chain Monte Carlo method. The results demonstrate the effectiveness of DAS-based urban traffic noise in near-surface characterization.

Item Type: Article
Subjects: Asian STM > Geological Science
Depositing User: Managing Editor
Date Deposited: 06 Mar 2023 07:29
Last Modified: 24 Jun 2024 04:18
URI: http://journal.send2sub.com/id/eprint/900

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