BGS Hosted Metadata
3D shear wave (Vsv) velocity model of West Antarctic crustal structure
3D vertically-polarised shear wave (Vsv) velocity model of West Antarctic crustal structure developed using data from the 2016-2018 UK Antarctic Seismic Network (UKANET) and Polar Earth Observing Seismic Network (POLENET). Interstation Rayleigh and Love wave phase velocity dispersion measurements at periods of 8-25 seconds were extracted from seismic ambient noise cross-correlograms by automated frequency-time analysis (AFTAN). The ensemble of interstation Rayleigh wave dispersion measurements was used to develop 2D Rayleigh wave phase velocity maps of West Antarctica at periods of 8-25 seconds by Fast Marching Surface Tomography (FMST) on a grid with a node spacing of 0.75deg. 'Local' 1D Rayleigh wave phase velocity dispersion curves were extracted by sampling the 2D Rayleigh wave phase velocity maps at grid node locations. The local 1D Rayleigh wave phase velocity dispersion curves were inverted for 1D shear wave (Vsv) structure to 40 km depth, and the ensemble of 1D shear wave (Vsv) profiles were subsequently gridded to produce the 3D shear wave (Vsv) model of West Antarctica from 10-40 km depth.
Funding was provided by the NERC standard grant NE/L006065/1.
Simple
- Date (Creation)
- 2019-05-02
- Date (Revision)
- 2019-05-02
- Date (Publication)
- 2019-05-02
- Date (released)
- 2019-05-02
- Edition
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1.0
- Unique resource identifier
- https://doi.org/10.5285/b5ffac8a-9846-4f86-9a71-3ce992a18148
- Codespace
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doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01145
- Codespace
- Unique resource identifier
- NE/L006065/1
- Codespace
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award
- Other citation details
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Please cite this item as: O'Donnell, J., Stuart, G., & Brisbourne, A. (2019). 3D shear wave (Vsv) velocity model of West Antarctic crustal structure (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/b5ffac8a-9846-4f86-9a71-3ce992a18148
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Leeds
O'Donnell, John Paul Author University of Leeds
Stuart, Graham Author British Antarctic Survey Brisbourne, Alexander Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
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West Antarctica
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ambient noise
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crust
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seismology
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tectonics
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- Place
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West Antarctica Antarctica
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GEMET - INSPIRE themes, version 1.0
- Access constraints
- Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- Other restrictions
- Other constraints
- no limitations
- Use constraints
- License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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This data is governed by the NERC Data Policy: https://www.ukri.org/who-we-are/nerc/our-policies-and-standards/nerc-data-policy/
- Use constraints
- Other restrictions
- Other constraints
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This data is governed by the NERC data policy and supplied under Open Government Licence v.3
- Use constraints
- Other restrictions
- Other constraints
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No restrictions apply to the data held in this repository.
The UKANET raw seismic data will be accessible through the Incorporated Research Institutions for Seismology (IRIS) Data Management Center ( http://www.iris.edu/mda) from January 2021.
- Unique resource identifier
- url
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url
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Larger work citation
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Geoscientific information
))
- Begin date
- 2016-01-12
- End date
- 2018-02-08
- Supplemental Information
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It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.
- Title
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European Petroleum Survey Group (EPSG) Geodetic Parameter Registry
- Date (Publication)
- 2008-11-12
- Cited responsible party
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Organisation name Individual name Electronic mail address Role European Petroleum Survey Group
Publisher
- Unique resource identifier
- urn:ogc:def:crs:EPSG::3031
- Version
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6.18.3
Distributor
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Distributor format
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Name Version application/netcdf text/plain application/pdf
- Units of distribution
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bytes
- Transfer size
- 111149056
- OnLine resource
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Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=b5ffac8a-9846-4f86-9a71-3ce992a18148 Get Data
- Units of distribution
-
bytes
- Transfer size
- 111149056
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=b5ffac8a-9846-4f86-9a71-3ce992a18148 Get Data
- Units of distribution
-
bytes
- Transfer size
- 111149056
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=b5ffac8a-9846-4f86-9a71-3ce992a18148 Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
The UKANET seismic network was deployed in austral summer 2015-2016 and consisted of 10 stations located across the southern Antarctic Peninsula and Ellsworth Land. Each station had a cold-rated Guralp CMG-3T 120 s seismometer sampling at 1 and 100 samples per second. The network was demobilised in austral summer 2017-2018. A detailed description of the data collection, quality control, processing and analysis is given in: O'Donnell, J. P. et al., 2019. Mapping crustal shear wave velocity structure and radial anisotropy beneath West Antarctica using seismic ambient noise.
Data collection:
The UKANET network used cold-rated Guralp CMG-3T 120 s seismometers sampling at 1 and 100 samples per second combined with Quanterra Q330 digitisers and B44 balers.
Resolution:
Lateral resolution is variable, depending on the seismic station locations. The 3D shear wave (Vsv) velocity model resolves lateral structure of wavelength 300 km with high fidelity in central West Antarctica. 

Data quality:
A detailed description of the data collection, quality control, processing and analysis is given in: O'Donnell, J. P. et al., 2019. Mapping crustal shear wave velocity structure and radial anisotropy beneath West Antarctica using seismic ambient noise.
Metadata
- File identifier
- b5ffac8a-9846-4f86-9a71-3ce992a18148 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2019-05-02
- Metadata standard name
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ISO 19115 Geographic Information - Metadata
- Metadata standard version
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ISO 19115:2003(E)
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Point of contact
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