NERC Data Catalogue Service
GPS and ApRES data relating to the growth of Chasm-1, Brunt Ice Shelf from 2016 to 2023
The dataset consists of GPS data recorded from four sites close to Halley VI Research Station, plus ApRES data across the rift from 2017-2019. Both data types provide information on the width of an active rift propagating through the ice shelf. GPS sites advect with flow of the ice shelf, while ApRES is repositioned each year. The data were collected as part of the Lifetime-of-Halley monitoring programme.
This work was funded by NERC grant NE/X014991/1 (RIFT-TIP) and supported by NERC Antarctic Logistics and Infrastructure.
Simple
- Date (Creation)
- 2025-04-03
- Date (Revision)
- 2025-04-03
- Date (Publication)
- 2025-04-03
- Date (released)
- 2025-04-03
- Edition
- 1.0
- Unique resource identifier
- https://doi.org/10.5285/3d6fd5ae-e94d-4d0b-a5e9-5779ca84855e
- Codespace
- doi
- Unique resource identifier
- GB/NERC/BAS/PDC/02038
- Codespace
- https://data.bas.ac.uk/
- Unique resource identifier
- NE/X014991/1
- Codespace
- award
- Other citation details
- Please cite this item as: Marsh, O., & De Rydt, J. (2025). GPS and ApRES data relating to the growth of Chasm-1, Brunt Ice Shelf from 2016 to 2023 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/3d6fd5ae-e94d-4d0b-a5e9-5779ca84855e
- Credit
- No credit.
- Status
- completed Completed
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Maintenance and update frequency
- asNeeded As needed
- Maintenance note
- completed Completed
- Theme
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- GPS
- Halley VI
- calving
- ice shelf
- velocity
- Place
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- Brunt Ice Shelf, Halley VI Research Station Antarctica
- GEMET - INSPIRE themes, version 1.0
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations to public access
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- no limitations
- Use constraints
- license License
- Other constraints
- Open Government Licence v3.0
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- Data supplied under Open Government Licence v3.0
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- No restrictions apply.
- Unique resource identifier
- url
- Codespace
- url
- Association Type
- largerWorkCitation Larger work citation
- Unique resource identifier
- url
- Codespace
- url
- Association Type
- largerWorkCitation Larger work citation
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- Codespace
- url
- Association Type
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- Unique resource identifier
- url
- Codespace
- url
- Association Type
- dependency dependency
- Unique resource identifier
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- Codespace
- url
- Association Type
- dependency dependency
- Unique resource identifier
- url
- Codespace
- url
- Association Type
- crossReference Cross reference
- Unique resource identifier
- doi
- Codespace
- doi
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- Unique resource identifier
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- Codespace
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- Association Type
- crossReference Cross reference
- Unique resource identifier
- doi
- Codespace
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- Association Type
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- Spatial representation type
- textTable Text, table
- Metadata language
- engEnglish
- Character set
- utf8 UTF8
- Topic category
-
- Inland waters
- Oceans
))
- Begin date
- 2016-01-01
- End date
- 2023-02-01
- 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.
Distributor
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
- Name
- text/plain
- Name
- application/x-hdf
- Name
- application/netcdf
- Units of distribution
- bytes
- Transfer size
- 91268055040
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Units of distribution
- bytes
- Transfer size
- 91268055040
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Units of distribution
- bytes
- Transfer size
- 91268055040
- OnLine resource
-
Get Data
(
WWW:LINK-1.0-http--link
)
Download data
- Hierarchy level
- dataset Dataset
- Statement
-
Methodology:
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. The ApRES was installed in a horizontal configuration with antennas spaced approximately 15 m apart. A metal reflector was installed on the far side of the crack and the peak in reflection indicates the distance across the crack. The ApRES raw DAT format was converted to ApRES raw netCDF format using the bas-apres software (v0.3.0). Details in Marsh et al., 2024.
Data collection:
Data collected using Leica GS10 and Leica GX1200 GPS and ApRES.
Data quality:
Dual frequency Raw GPS data have been converted into 5 minute Rinex files. ApRES is in netCDF format. The GPS data are mostly available for each day, although with some gaps in austral winter (July/August). The ApRES data has a high signal to noise ratio (~30 dB) after initial set-up (i.e. in February and March). This generally decreases through the winter and the signal disappears around September each year.
- File identifier
- 3d6fd5ae-e94d-4d0b-a5e9-5779ca84855e XML
- Metadata language
- engEnglish
- Character set
- utf8 UTF8
- Hierarchy level
- dataset Dataset
- Hierarchy level name
- dataset
- Date stamp
- 2025-04-03
- Metadata standard name
- ISO 19115 Geographic Information - Metadata
- Metadata standard version
- ISO 19115:2003(E)
https://www.bas.ac.uk/team/business-teams/information-services/uk-polar-data-centre/
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