BGS Hosted Metadata
Satellite-derived velocity maps for Larsen C Ice Shelf, Antarctica, between November 2017-April 2019
Velocity maps were derived, for regions of Larsen C ice shelf, from satellite imagery spanning the period November 2017 to April 2019. This period was selected to monitor any change in the velocity field of Larsen C, in the months following the calving of iceberg A68 from the front of the ice shelf. The archive contains two sets of maps. The first are derived from Sentinel-1 satellite data, and span the complete ice shelf for the full 18-month epoch. The second are derived from TerraSAR-X data, and show high-resolution velocity trends between 2017 and 2018, covering the frontal region of Larsen C ice shelf. The maps were produced by Professor Adrian Luckman, Swansea University.
The data is part of the NERC RACE project, NE/R012334/1.
Simple
- Date (Creation)
- 2020-11-16
- Date (Revision)
- 2020-11-16
- Date (Publication)
- 2020-11-16
- Date (released)
- 2020-11-16
- Edition
-
1.0
- Unique resource identifier
- https://doi.org/10.5285/e5a119c7-15be-4ad8-bf70-6cc8d112af87
- Codespace
-
doi
- Unique resource identifier
- GB/NERC/BAS/PDC/01433
- Codespace
- Unique resource identifier
- NE/R012334/1
- Codespace
-
award
- Other citation details
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Please cite this item as: Luckman, A. (2020). Satellite-derived velocity maps for Larsen C Ice Shelf, Antarctica, between November 2017-April 2019 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/e5a119c7-15be-4ad8-bf70-6cc8d112af87
- 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
Luckman, Adrian Author NERC EDS UK Polar Data Centre Point of contact
- Maintenance and update frequency
- As needed
- Maintenance note
- Completed
- Theme
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Larsen
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flow
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ice shelf
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iceberg calving
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satellite
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velocity
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- Place
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Larsen C Ice Shelf 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
-
This data is supplied under Open Government Licence v3.0
- Use constraints
- Other restrictions
- Other constraints
-
No restrictions apply.
- Unique resource identifier
- doi
- Codespace
-
doi
- Association Type
- Cross reference
- Unique resource identifier
- doi
- Codespace
-
doi
- Association Type
- Cross reference
- Unique resource identifier
- url
- Codespace
-
url
- Association Type
- Cross reference
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
- Imagery base maps earth cover
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- Begin date
- 2017-11-01
- End date
- 2019-04-30
- Supplemental Information
-
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
-
6.18.3
Distributor
- Distributor contact
-
Organisation name Individual name Electronic mail address Role NERC EDS UK Polar Data Centre Distributor
- Distributor format
-
Name Version image/tiff
- Units of distribution
-
bytes
- Transfer size
- 3543348019
- OnLine resource
-
Protocol Linkage Name WWW:LINK-1.0-http--link
https://ramadda.data.bas.ac.uk/repository/entry/show?entryid=e5a119c7-15be-4ad8-bf70-6cc8d112af87 Get Data
- Hierarchy level
- Dataset
- Statement
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Methodology:
Data was acquired by TerraSAR-X and Sentinel-1 satellites. The TerraSAR-X data acquisitions were ordered specifically for the RACE68 Project. Standard 'feature tracking' algorithms were applied to derive ice surface velocity. Key parameters in the feature tracking were:
TerraSAR-X: window size 500 x 500 (pixels ~2m resolution), sample spacing of 20 pixels.
Sentinel-1: window size 416 x 128 (pixels ~10m resolution), sample spacing of 10 pixels.
Data collection:
Feature tracking was applied using Gamma Software with a December 2017 license.
Data quality:
Velocity retrieval error is generally found to be one tenth of a pixel or better over the repeat period between images, depending on how surface conditions (melt, snowfall) have changed over that period. For these datasets, therefore, the error will be approximately:
TerraSAR-X: 0.2m (2m resolution x 0.1) over 11 days, or ~0.02 m/day.
Sentinel-1: 1m (10m resolution x 0.1) over 6 days, or ~0.2 m/day.
Metadata
- File identifier
- e5a119c7-15be-4ad8-bf70-6cc8d112af87 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2020-11-16
- Metadata standard name
-
ISO 19115 Geographic Information - Metadata
- Metadata standard version
-
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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