Abstract
Surface-wave dispersion characteristics of the subsurface are used to invert for the S-wave velocity structure. On the other hand, the dispersion characteristics can already give some information about anomalies in the subsurface with a minimal amount of processing. We investigate quick scanning to find anomalies in the S-wave velocity structure by analysing the dispersion characteristics along a seismic line. In order to extract lateral information, we use a moving window and transform the traces in each window into the frequency-phase velocity domain. This is first applied to synthetic data with both a positive- and negative-velocity anomaly. With our results, we show how some basic characteristics of the anomaly can be seen and how a larger window removes more lateral information. We apply the methodology to field data, and show that multiple anomalies can be identified.
| Original language | English |
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| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2023 |
| Event | Near Surface Geoscience 2023: 29th European Meeting of Environmental and Engineering Geophysics - Edinburgh, United Kingdom Duration: 3 Sept 2023 → 7 Sept 2023 |
Conference
| Conference | Near Surface Geoscience 2023 |
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| Abbreviated title | NSG 2023 |
| Country/Territory | United Kingdom |
| City | Edinburgh |
| Period | 3/09/23 → 7/09/23 |
Bibliographical note
Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-careOtherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.