Surface wave dispersion measurements for the Pacific, 2023 - 2024
| Dataset title | Surface wave dispersion measurements for the Pacific, 2023 - 2024 |
|---|---|
| Dataset creators | Franck Latallerie, University of Oxford Christophe Zaroli, University of Strasbourg Sophie Lambotte, University of Strasbourg Alessia Maggi, University of Strasbourg Andrew Walker, University of Oxford Paula Koelemeijer, University of Oxford |
| Dataset theme | Geoscientific Information |
| Dataset abstract | Synthetic and real dispersion measurements for paths across the Pacific, consists of 2 datasets; SS3DPacific_new - This is a data set of surface-wave dispersion measurements. The dispersion is measured between a synthetic reference seismogram (computed with normal-mode summation using the MINEOS software in the radial model stw105 from Kustowski et al., 2008), and a real observed seismogram. This data set is used by Latallerie et al. (2024) to build a Vs model of the Pacific upper-mantle with full 3D resolution and uncertainty using SOLA inversion (Zaroli 2016) and finite-frequency theory (Zhou 2009). Data are for a set of source-receiver pairs for frequencies ranging from 6 to 21 mHz, every 1mHz. The measurement algorithm uses the multi-taper technique (Thompson 1982). The first 5 Slepians are used (Slepian 1978). A datum is the average of measurements over these tapers, and the uncertainty is the standard deviation. SS3DPacificSyn_new - This is a data set of surface-wave dispersion measurements. The dispersion is measured between a synthetic reference seismogram (computed with normal-mode summation using the MINEOS software in the radial model stw105 from Kustowski et al., 2008), and a synthetic seismogram computed using the spectral element method software Specfem in the 3D model S362ANI from Kustowski et al. (2018). This data set is used by Latallerie et al. (2024) in a synthetic tomography study to retrieve the Vs structure of the input 3D model S362ANI in the Pacific upper-mantle with full 3D resolution and uncertainty using SOLA inversion (Zaroli 2016) and finite-frequency theory (Zhou 2009). Measurements are provided for source-receiver pairs for frequencies ranging from 6 to 21 mHz, every 1mHz. The measurement algorithm uses the multi-taper technique (Thompson 1982). The first 5 Slepians (Slepian 1978) are used. A datum is the average of measurements over these tapers, and the uncertainty is the standard deviation. |
| Dataset content dates | 01/02/2023 to 31/07/2024 |
| Dataset spatial coverage | Global with a focus on the Pacific |
| Dataset supply format | Ascii plain text |
| Dataset language | English-United Kingdom |
| Dataset discovery metadata record | Discovery Link to the dataset's BGS Discovery Metadata record |
| Dataset publisher | NERC EDS National Geoscience Data Centre |
| Dataset publication date | 09/08/2024 |
| Dataset digital object identifier(DOI) | 10.5285/faa9097c-e170-4831-a860-8825b02a6a2a |
| Dataset citation text | Latallerie, F., Zaroli, C., Lambotte, S., Maggi, A., Walker, A., Koelemeijer, P. (2024). Surface wave dispersion measurements for the Pacific, 2023 - 2024. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/faa9097c-e170-4831-a860-8825b02a6a2a |
| Constraints and terms of use | This data set is available under Open Government Licence, subject to the following acknowledgement accompanying any reproduced materials: "Contains data supplied by permission of the Natural Environment Research Council [YEAR]". |
| Access the dataset | https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item185899 |
| Further Information | Paper in revision for Seismica |