Seismic attenuation extracted from isolated traffic signals

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergySeismic attenuation extracted from isolated traffic signalsAuthors: Yumin ZhaoYunyue Elita LiBei LiWei LuoZhaoyin LiuYuxuan ZhouYumin ZhaoNational University of SingaporeSearch for more papers by this author, Yunyue Elita LiPurdue UniversitySearch for more papers by this author, Bei LiNational University of SingaporeSearch for more papers by this author, Wei LuoNational University of SingaporeSearch for more papers by this author, Zhaoyin LiuNational University of SingaporeSearch for more papers by this author, and Yuxuan ZhouNational University of SingaporeSearch for more papers by this authorhttps://doi.org/10.1190/image2022-3746998.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractSeismic attenuation varies with changes of underground rock properties, such as fluid saturation and pore pressure. We resolve the time-varying seismic attenuation for each day by estimating the slope of the linear relationships between the differences of two amplitude spectra, which are recorded at two times in hundreds of isolated traffic signals and frequency. Synthetic examples demonstrate the reliability of this method when applied on seismic data with different signal-to-noise ratios. We apply the method on about seven-month-long seismic data recorded by seismic sensors deployed at two different road-side sites. We first evaluate the quality of the attenuation measurement by comparing it with the selected data count. Then, we analyze the relationship between the estimated slope and rainfall, accumulated traffic count, and temperature, respectively. Finally, we conclude that the time-varying seismic attenuation correlates most strongly with rainfall, which results in changes in groundwater saturation and the soil’s effective physical property.Keywords: traffic signals, seismic attenuation, spectral ratio methodPermalink: https://doi.org/10.1190/image2022-3746998.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Yumin Zhao, Yunyue Elita Li, Bei Li, Wei Luo, Zhaoyin Liu, and Yuxuan Zhou, (2022), "Seismic attenuation extracted from isolated traffic signals," SEG Technical Program Expanded Abstracts : 2071-2075. https://doi.org/10.1190/image2022-3746998.1 Plain-Language Summary Keywordstraffic signalsseismic attenuationspectral ratio methodPDF DownloadLoading ...