BGS Hosted Metadata
Animation of Thwaites Glacier ice base and surface elevation profiles from June 2011 to November 2020
Thwaites Glacier, West Antarctica. An animated time series plot of 64 profiles of ice base and surface elevation along a flowline based on the mean flow direction. The flowline passes through a region of large elevation change that took place between 2014 and 2017.
The work was funded by NERC projects NE/P011365/1 and NE/S006605/1
Simple
- Date (Creation)
- 2021-06-09
- Date (Revision)
- 2021-06-09
- Date (Publication)
- 2021-06-09
- Date (released)
- 2021-06-09
- Edition
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1.0
- Unique resource identifier
- https://doi.org/10.5285/c2dfc6b7-dd61-41f9-8624-a45f2cf978df
- Codespace
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doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01510
- Codespace
- Unique resource identifier
- NE/P011365/1
- Codespace
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award
- Unique resource identifier
- NE/S006605/1
- Codespace
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award
- Other citation details
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Please cite this item as: Bevan, S., Luckman, A., & Benn, D. (2021). Animation of Thwaites Glacier ice base and surface elevation profiles from June 2011 to November 2020 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/c2dfc6b7-dd61-41f9-8624-a45f2cf978df
- Credit
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No credit.
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role Swansea University
Bevan, Suzanne Author Swansea University
Luckman, Adrian Author University of St Andrews
Benn, Douglas Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Global Change Master Directory (GCMD) Science Keywords
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- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glaciers
- EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Elevation/Ice Sheet Elevation
- EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness
- EARTH SCIENCE > Hydrosphere > Glaciers/Ice Sheets > Glaciers
- Theme
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ITGC
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Thwaites Glacier
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ice base and surface elevation profiles
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- Place
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Along the western flank of the fast-flowing core of Thwaites Glacier. 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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Data supplied under Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
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No restrictions apply.
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
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doi
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
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url
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Elevation
- Geoscientific information
- Imagery base maps earth cover
)
- Begin date
- 2011-06-22
- End date
- 2020-11-02
- 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 image/gif
- Units of distribution
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bytes
- Transfer size
- 2048
- 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=c2dfc6b7-dd61-41f9-8624-a45f2cf978df Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
The profiles were extracted from digital elevation models (DEMs) based on an interferometric analysis of TanDEM-X satellite system synthetic aperture radar (SAR) data. Phase-scaling of the interferograms utilised the supplied orbit data. The DEMs were geocoded first using the RAMP DEM (Liu et al., 2015) and then, iteratively, using the DEMs themselves. The DEMs were calibrated in the vertical using an ICESat-2 point at (107.49°W, 75.47°S) acquired on 2018-11-05. Heights are plotted relative to the EGM2008 Geoid and corrected for mean dynamic topography and tides. The ice base is computed assuming that the ice is in hydrostatic equilibrium. The bedrock is from Jordan et al. (2020). Processing is described fully in the reference paper.
Data collection:
Interferometric analysis was carried out using Gamma Remote Sensing software 20190603.
Data quality:
Via comparison with ICESat-2 data and in consideration of orbit uncertainty, the original DEMs have an estimated vertical uncertainty of ±2 m.
Metadata
- File identifier
- c2dfc6b7-dd61-41f9-8624-a45f2cf978df XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2021-06-09
- 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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