NERC Data Catalogue Service
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
- Alternate title
- Polar Data Centre (PDC) record GB/NERC/BAS/PDC/01433
- Date (Publication)
- 2020-11-16
- Identifier
- http://www.antarctica.ac.uk/dms/metadata.php?id= / GB/NERC/BAS/PDC/01433
- Maintenance and update frequency
- unknown Unknown
- Keywords
-
- NDGO0001
- NERC OAI Harvesting
-
- NERC_DDC
- GCMD Parameter Valids
-
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets
- EARTH SCIENCE > Cryosphere > Glaciers/Ice Sheets > Glacier Motion/Ice Sheet Motion
- EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Velocity
- BAS Free-text keywords
-
- Larsen
- flow
- ice shelf
- iceberg calving
- satellite
- velocity
- Use limitation
- This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- This data is supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/.
- Metadata language
- EnglishEnglish
- Topic category
-
- Climatology, meteorology, atmosphere
- Environment
- Geoscientific information
- Imagery base maps earth cover
))
- Begin date
- 2017-11-01
- End date
- 2019-04-30
- Reference system identifier
- OGP / urn:ogc:def:crs:EPSG::4326
- Distribution format
-
- OnLine resource
- GET DATA ( http )
- Hierarchy level
- dataset Dataset
Domain consistency
- Measure identification
- INSPIRE / Conformity_001
Conformance result
- Date
- Explanation
- See the referenced specification
- Pass
- No
- Statement
-
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.
- File identifier
- GB_NERC_BAS_PDC_01433 XML
- Metadata language
- EnglishEnglish
- Hierarchy level
- dataset Dataset
- Date stamp
- 2020-11-16
- Metadata standard name
- NERC profile of ISO19115:2003
- Metadata standard version
- 1.0
Overviews
Spatial extent
Provided by
