Abstract:
The dataset consists of GPS data recorded from four sites close to Halley VI Research Station providing information on the width of an active rift propagating through the ice shelf. GPS sites advect with flow of the ice shelf. The data were collected as part of the Lifetime-of-Halley monitoring programme.
This work was partially funded by NERC grant NE/X014991/1 (RIFT-TIP) and supported by NERC Antarctic Logistics and Infrastructure.
Keywords:
GPS, Halley VI, calving, ice shelf, velocity
Marsh, O., & De Rydt, J. (2025). GPS data relating to the growth of Halloween Crack, Brunt Ice Shelf from 2016 to 2023 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/6244cca4-8eaa-41a0-a9c1-d89167b02b85
| Access Constraints: | Under embargo until publication of associated article. |
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| Use Constraints: | Data supplied under Open Government Licence v3.0 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2025-07-07 |
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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 Polar Data Centre |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Oliver J Marsh |
| Role(s) | Investigator, Technical Contact |
| Organisation | British Antarctic Survey |
| Name | Jan De Rydt |
| Role(s) | Investigator |
| Organisation | Northumbria University |
| Parent Dataset: | N/A |
| Reference: | Ice Shelf Calving due to Shear Stresses: Observing the Response of Brunt Ice Shelf and Halloween Crack to Iceberg Calving using ICESat-2 Laser Altimetry, Satellite Imagery, and Ice Flow Models, Ashley Morris, Bradley P. Lipovsky, Catherine C. Walker, Oliver J. Marsh (submitted). | |
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| Quality: | Dual frequency Raw GPS data have been converted into 5 minute Rinex files. The GPS data are mostly available for each day, although with some gaps in austral winter (July/August). | |
| Lineage: | The GPS sites were installed between 2016 and 2017 and recorded for 2 hours 15 minutes each day at 30 second resolution. Data was converted from raw Leica format (*.m00) to standard Rinex v2 format using UNAVCO's teqc.exe program. Details in Morris et al., 2025. | |
| Temporal Coverage: | |
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| Start Date | 2016-01-01 |
| End Date | 2023-02-01 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -75.6 |
| Northernmost | -75.4 |
| Longitude | |
| Westernmost | -26.2 |
| Easternmost | -25 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Data Resolution: | |
| Latitude Resolution | N/A |
| Longitude Resolution | N/A |
| Horizontal Resolution Range | N/A |
| Vertical Resolution | N/A |
| Vertical Resolution Range | N/A |
| Temporal Resolution | N/A |
| Temporal Resolution Range | 1 minute - < 1 hour |
| Location: | |
| Location | Antarctica |
| Detailed Location | Brunt Ice Shelf, Halley VI Research Station |
| Sensor(s): |
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| Data Collection: | Data collected using Leica GS10 and Leica GX1200 GPS. |
| Distribution: | |
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| Distribution Media | Online Internet (HTTP) |
| Distribution Size | 355 MB |
| Distribution Format | ASCII |
| Fees | N/A |
| Data Storage: | Four directories containing GPS Rinex data from four different GPS sites. |