Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica
The presence of marine microfossils (diatoms) in glacier ice and ice cores has been documented from numerous sites in Antarctica, Greenland, as well as from sites in the Andes and the Altai mountains, and attributed to entrainment and transport by winds. However, their presence and diversity in snow...
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European Geosciences Union
2022
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Online Access: | http://nora.nerc.ac.uk/id/eprint/530410/ https://nora.nerc.ac.uk/id/eprint/530410/1/tc-16-779-2022.pdf https://tc.copernicus.org/articles/16/779/2022/ |
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ftnerc:oai:nora.nerc.ac.uk:530410 2023-05-15T13:41:45+02:00 Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica Tetzner, Dieter R. Allen, Claire S. Thomas, Elizabeth R. 2022-03-09 text http://nora.nerc.ac.uk/id/eprint/530410/ https://nora.nerc.ac.uk/id/eprint/530410/1/tc-16-779-2022.pdf https://tc.copernicus.org/articles/16/779/2022/ en eng European Geosciences Union https://nora.nerc.ac.uk/id/eprint/530410/1/tc-16-779-2022.pdf Tetzner, Dieter R. orcid:0000-0001-7659-8799 Allen, Claire S. orcid:0000-0002-0938-0551 Thomas, Elizabeth R. orcid:0000-0002-3010-6493 . 2022 Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica. The Cryosphere, 16. 779-798. https://doi.org/10.5194/tc-16-779-2022 <https://doi.org/10.5194/tc-16-779-2022> cc_by_4 CC-BY Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.5194/tc-16-779-2022 2023-02-04T19:52:12Z The presence of marine microfossils (diatoms) in glacier ice and ice cores has been documented from numerous sites in Antarctica, Greenland, as well as from sites in the Andes and the Altai mountains, and attributed to entrainment and transport by winds. However, their presence and diversity in snow and ice, especially in polar regions, are not well documented and still poorly understood. Here we present the first data to resolve the regional and temporal distribution of diatoms in ice cores, spanning a 20-year period across four sites in the Antarctic Peninsula and Ellsworth Land, Antarctica. We assess the regional variability in diatom composition and abundance at annual and sub-annual resolution across all four sites. These data corroborate the prevalence of contemporary marine diatoms in Antarctic Peninsula ice cores, reveal that the timing and amount of diatoms deposited vary between low- and high-elevation sites, and support existing evidence that marine diatoms have the potential to yield a novel palaeoenvironmental proxy for ice cores in Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica glacier Greenland The Cryosphere Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Ellsworth Land ENVELOPE(-85.000,-85.000,-75.000,-75.000) Greenland The Antarctic The Cryosphere 16 3 779 798 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The presence of marine microfossils (diatoms) in glacier ice and ice cores has been documented from numerous sites in Antarctica, Greenland, as well as from sites in the Andes and the Altai mountains, and attributed to entrainment and transport by winds. However, their presence and diversity in snow and ice, especially in polar regions, are not well documented and still poorly understood. Here we present the first data to resolve the regional and temporal distribution of diatoms in ice cores, spanning a 20-year period across four sites in the Antarctic Peninsula and Ellsworth Land, Antarctica. We assess the regional variability in diatom composition and abundance at annual and sub-annual resolution across all four sites. These data corroborate the prevalence of contemporary marine diatoms in Antarctic Peninsula ice cores, reveal that the timing and amount of diatoms deposited vary between low- and high-elevation sites, and support existing evidence that marine diatoms have the potential to yield a novel palaeoenvironmental proxy for ice cores in Antarctica. |
format |
Article in Journal/Newspaper |
author |
Tetzner, Dieter R. Allen, Claire S. Thomas, Elizabeth R. |
spellingShingle |
Tetzner, Dieter R. Allen, Claire S. Thomas, Elizabeth R. Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
author_facet |
Tetzner, Dieter R. Allen, Claire S. Thomas, Elizabeth R. |
author_sort |
Tetzner, Dieter R. |
title |
Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
title_short |
Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
title_full |
Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
title_fullStr |
Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
title_full_unstemmed |
Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica |
title_sort |
regional variability of diatoms in ice cores from the antarctic peninsula and ellsworth land, antarctica |
publisher |
European Geosciences Union |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/530410/ https://nora.nerc.ac.uk/id/eprint/530410/1/tc-16-779-2022.pdf https://tc.copernicus.org/articles/16/779/2022/ |
long_lat |
ENVELOPE(-85.000,-85.000,-75.000,-75.000) |
geographic |
Antarctic Antarctic Peninsula Ellsworth Land Greenland The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Ellsworth Land Greenland The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica glacier Greenland The Cryosphere |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica glacier Greenland The Cryosphere |
op_relation |
https://nora.nerc.ac.uk/id/eprint/530410/1/tc-16-779-2022.pdf Tetzner, Dieter R. orcid:0000-0001-7659-8799 Allen, Claire S. orcid:0000-0002-0938-0551 Thomas, Elizabeth R. orcid:0000-0002-3010-6493 . 2022 Regional variability of diatoms in ice cores from the Antarctic Peninsula and Ellsworth Land, Antarctica. The Cryosphere, 16. 779-798. https://doi.org/10.5194/tc-16-779-2022 <https://doi.org/10.5194/tc-16-779-2022> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/tc-16-779-2022 |
container_title |
The Cryosphere |
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16 |
container_issue |
3 |
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779 |
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798 |
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1766157440929234944 |