Abstract:
This dataset provides a 298 year (1712-2010) annual snow accumulation record from the Bryan Coast (BC11) ice core. The 140 m core was drilled on the Bryan Coast in Ellsworth Land, West Antarctica, during the austral summer 2010/11. The record was measured using the summer peak in non sea salt (nss) SO4, in approximately January to December. Snow accumulation is converted to meters of water equivalent (weq - m) based on measured density profile and correcting for thinning using the Nye model, assuming vertical strain rate. Samples were measured at 5 cm resolution, corresponding to approximately eight samples per year.
Funding was provided by the NERC grant NE/J020710/1.
Keywords:
Ice core, Isotope, Snow accumulation, West Antarctica
Thomas, E. (2017). Snow accumulation from the Bryan Coast ice core (BC11), Ellsworth Land, West Antarctica (Version None) [Data set]. Polar Data Centre; British Antarctic Survey, Natural Environment Research Council; Cambridge, CB3 0ET, UK.. https://doi.org/10.5285/6feac38a-5847-46f9-84e4-e7e9d291f935
| Access Constraints: | No restrictions apply. |
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| 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/. |
| Creation Date: | 2017-06-27 |
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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 | Dr Liz Thomas |
| Role(s) | Technical Contact, Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Thomas, E. R., J. S. Hosking, R. R. Tuckwell, R. A. Warren, and E. C. Ludlow (2015), Twentieth century increase in snowfall in coastal West Antarctica, Geophys. Res. Lett., 42, 9387-9393, doi:10.1002/2015GL065750. Thomas, E. R., and T. J. Bracegirdle (2015), Precipitation pathways for five new ice core sites in Ellsworth Land, West Antarctica, Climate Dynamics, 44 (7-8), 2067-2078, doi:10.1007/s00382-014-2213-6 |
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| Quality: | Dating method: Annual layer counting - checked using volcanic tie-points (SO4, ECM). | |
| Lineage/Methodology: | See the referenced publication for further information. | |
| Temporal Coverage: | |
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| Start Date | 1712-01-01 |
| End Date | 2010-01-01 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -74.49629 |
| Northernmost | -74.49629 |
| Longitude | |
| Westernmost | -81.67881 |
| Easternmost | -81.67881 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | 1177 m |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Antarctica |
| Detailed Location | Bryan Coast, West Antarctica |
| Data Collection: |
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| Data Storage: | The dataset is approximately 55KB and is in Excel format. |
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