1000 year ice-core records from Berkner Island, Antarctica ...
Two medium-depth ice cores were retrieved from Berkner Island by a joint project between the Alfred-Wegener-Institut and the British Antarctic Survey in the 1994/95 field season. A 151m deep core from the northern dome (Reinwarthhöhe) of Berkner Island spans 700 years, while a 181m deep core from th...
| Main Authors: | , , , , , , , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2002
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.728157 https://doi.pangaea.de/10.1594/PANGAEA.728157 |
| Summary: | Two medium-depth ice cores were retrieved from Berkner Island by a joint project between the Alfred-Wegener-Institut and the British Antarctic Survey in the 1994/95 field season. A 151m deep core from the northern dome (Reinwarthhöhe) of Berkner Island spans 700 years, while a 181m deep core from the southern dome (Thyssenhöhe) spans approximately 1200 years. Both cores display clear seasonal cycles in electrical conductivity measurements, allowing dating by annual-layer counting and the calculation of accumulation profiles. Stable-isotope measurements (both d18O and dD), together with the accumulation data, allow us to estimate changes in climate for most of the past millennium: the data show multi-decadal variability around a generally stable long-term mean. In addition, a full suite of major chemistry measurements is available to define the history of aerosol deposition at these sites: again, there is little evidence that the chemistry of the sites has changed over the past six centuries. Finally, we ... : Supplement to: Mulvaney, Robert; Oerter, Hans; Peel, David A; Graf, Wolfgang; Arrowsmith, Carol; Pasteur, Elizabeth C; Knight, Bruce; Littot, Geneviève C; Miners, William D (2002): 1000-year ice core records from Berkner Island, Antarctic. Annals of Glaciology, 35, 45-51 ... |
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