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- W2328313564 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2010S‐wave velocity from ground roll inversion: Source‐receiver tests and staticsAuthors: Soumya RoyRobert R. StewartSoumya RoyUniversity of Houston, Houston, TX‐77204Search for more papers by this author and Robert R. StewartUniversity of Houston, Houston, TX‐77204Search for more papers by this authorhttps://doi.org/10.1190/1.3513246 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Estimating a near‐surface S‐wave velocity (Vs) structure is important in providing a static solution for multi‐ component seismic analysis as well as for geotechnical purposes. We use the Multichannel Analysis of Surface Wave (MASW) method to delineate Vs in the near surface (Park et al., 1998; Xia et al., 1999). We applied the MASW method to seismic datasets acquired at the La Marque Geophysical Observatory at the University of Houston Coastal Center, Galveston County, Texas (Figure 1) in March, 2010. There were two major objectives of our study: 1) to test different sources (a 12 lb sledge hammer versus a truck‐mounted accelerated weight drop) and various receivers (planted geophones versus a dragged land streamer) and 2) to determine the near‐surface S‐wave velocity structure in the area. Another goal is also to compare the resolutions of different dispersion curves created by MASW method for different settings and to investigate the consistency of results. The dispersion curves for the seismic lines with planted receivers have lower noise with compare to the land streamer data. Data from lines having planted geophones contain information from greater depth. One of the reasons is the better coupling of planted geophones. Velocity results are consistent though for both types of receivers for the very near surface (7–8m). Analysis shows that the S‐wave velocity ranges from 120– 220m/sec for first 7–8m and increases up to about 500m/sec at a depth of 18–20m.Permalink: https://doi.org/10.1190/1.3513246FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 2010ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2010 Pages: 4453 publication data© 2010 Copyright © 2010 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 21 Oct 2010 CITATION INFORMATION Soumya Roy and Robert R. Stewart, (2010), S‐wave velocity from ground roll inversion: Source‐receiver tests and statics, SEG Technical Program Expanded Abstracts : 2039-2043. https://doi.org/10.1190/1.3513246 Plain-Language Summary PDF DownloadLoading ..." @default.
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- W2328313564 title "S‐wave velocity from ground roll inversion: Source‐receiver tests and statics" @default.
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