Abstract:
This dataset provides a map of the Antarctic grounding zone. The map is assembled using CryoSat-2 satellite radar altimetry data spanning between 2010-2017. This dataset provides both the limit of tidal flexure (point F) and hydrostatic equilibrium (point H) of the grounding zone.
Funding was provided by the NERC grant NE/N011511/1.
Keywords:
Grounding line, Grounding zone
Dawson, G., & Bamber, J. (2019). Grounding zone location across Antarctica from CryoSat-2 radar altimetry 2010-2017 (Version 1.0) [Data set]. UK Polar Data Centre, Natural Environment Research Council, UK Research & Innovation. https://doi.org/10.5285/40c0b0c6-533c-43e7-9761-38225dac3084
| Use Constraints: | This data is governed by the NERC data policy http://www.nerc.ac.uk/research/sites/data/policy/ and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
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| Creation Date: | 2019-08-20 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Jonathan Bamber |
| Role(s) | Investigator |
| Organisation | University of Bristol |
| Name | Geoffrey Dawson |
| Role(s) | Investigator, Technical Contact |
| Organisation | University of Bristol |
| Parent Dataset: | N/A |
| Reference: | Dawson, G. J., & Bamber, J. L. (2017). Antarctic grounding line mapping from CryoSat-2 radar altimetry. Geophysical Research Letters, 44, 11,886- 11,893. https://doi.org/10.1002/2017GL075589 | |
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| Quality: | The data were derived at a 1 km posting. Lines are discontinuous and overall approximately 41% of the grounding zone of the larger floating ice shelves and outlet glaciers in Antarctica have been mapped. | |
| Lineage: | See referenced publication for details. | |
| Temporal Coverage: | |
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| Start Date | 2010-10-01 |
| End Date | 2017-12-31 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -90 |
| Northernmost | -60 |
| Longitude | |
| Westernmost | -180 |
| Easternmost | 180 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Antarctica |
| Data Collection: | Instrumentation: Data was collected using the CryoSat-2 spaceborne interferometric radar altimeter. See referenced publication for further details. |
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| Data Storage: | The data are supplied in ESRI ArcGIS Shapefile (.shp, .shx, .dbf, .xml and .prj), there are two shapefiles supplied each approximately 500 KB. CS2_GZ_pF: The limit of tidal flexure (point F) of the Antarctic grounding zone. CS2_GZ_pH: The limit of hydrostatic equilibrium (point H) of the Antarctic grounding zone. |
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