10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland
Several deep Greenland ice cores have been retrieved, however, capturing the Eemian period has been problematic due to stratigraphic disturbances in the ice. The new Greenland deep ice core from the NEEM site (77.45°N, 51.06°W, 2450 m.a.s.l) recovered a relatively complete Eemian record. Here we dis...
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ftpubmed:oai:pubmedcentral.nih.gov:4179124 2023-05-15T16:24:42+02:00 10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland Sturevik-Storm, Anna Aldahan, Ala Possnert, Göran Berggren, Ann-Marie Muscheler, Raimund Dahl-Jensen, Dorthe Vinther, Bo M. Usoskin, Ilya 2014-09-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4179124 http://www.ncbi.nlm.nih.gov/pubmed/25266953 https://doi.org/10.1038/srep06408 en eng Nature Publishing Group http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25266953 http://dx.doi.org/10.1038/srep06408 Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ CC-BY-NC-SA Article Text 2014 ftpubmed https://doi.org/10.1038/srep06408 2014-10-05T02:06:32Z Several deep Greenland ice cores have been retrieved, however, capturing the Eemian period has been problematic due to stratigraphic disturbances in the ice. The new Greenland deep ice core from the NEEM site (77.45°N, 51.06°W, 2450 m.a.s.l) recovered a relatively complete Eemian record. Here we discuss the cosmogenic 10Be isotope record from this core. The results show Eemian average 10Be concentrations about 0.7 times lower than in the Holocene which suggests a warmer climate and approximately 65–90% higher precipitation in Northern Greenland compared to today. Effects of shorter solar variations on 10Be concentration are smoothed out due to coarse time resolution, but occurrence of a solar maximum at 115.26–115.36 kyr BP is proposed. Relatively high 10Be concentrations are found in the basal ice sections of the core which may originate from the glacial-interglacial transition and relate to a geomagnetic excursion about 200 kyr BP. Text Greenland Greenland ice cores ice core PubMed Central (PMC) Greenland Scientific Reports 4 1 |
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Article Sturevik-Storm, Anna Aldahan, Ala Possnert, Göran Berggren, Ann-Marie Muscheler, Raimund Dahl-Jensen, Dorthe Vinther, Bo M. Usoskin, Ilya 10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
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Several deep Greenland ice cores have been retrieved, however, capturing the Eemian period has been problematic due to stratigraphic disturbances in the ice. The new Greenland deep ice core from the NEEM site (77.45°N, 51.06°W, 2450 m.a.s.l) recovered a relatively complete Eemian record. Here we discuss the cosmogenic 10Be isotope record from this core. The results show Eemian average 10Be concentrations about 0.7 times lower than in the Holocene which suggests a warmer climate and approximately 65–90% higher precipitation in Northern Greenland compared to today. Effects of shorter solar variations on 10Be concentration are smoothed out due to coarse time resolution, but occurrence of a solar maximum at 115.26–115.36 kyr BP is proposed. Relatively high 10Be concentrations are found in the basal ice sections of the core which may originate from the glacial-interglacial transition and relate to a geomagnetic excursion about 200 kyr BP. |
format |
Text |
author |
Sturevik-Storm, Anna Aldahan, Ala Possnert, Göran Berggren, Ann-Marie Muscheler, Raimund Dahl-Jensen, Dorthe Vinther, Bo M. Usoskin, Ilya |
author_facet |
Sturevik-Storm, Anna Aldahan, Ala Possnert, Göran Berggren, Ann-Marie Muscheler, Raimund Dahl-Jensen, Dorthe Vinther, Bo M. Usoskin, Ilya |
author_sort |
Sturevik-Storm, Anna |
title |
10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
title_short |
10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
title_full |
10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
title_fullStr |
10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
title_full_unstemmed |
10Be climate fingerprints during the Eemian in the NEEM ice core, Greenland |
title_sort |
10be climate fingerprints during the eemian in the neem ice core, greenland |
publisher |
Nature Publishing Group |
publishDate |
2014 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4179124 http://www.ncbi.nlm.nih.gov/pubmed/25266953 https://doi.org/10.1038/srep06408 |
geographic |
Greenland |
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Greenland |
genre |
Greenland Greenland ice cores ice core |
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Greenland Greenland ice cores ice core |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC http://www.ncbi.nlm.nih.gov/pubmed/25266953 http://dx.doi.org/10.1038/srep06408 |
op_rights |
Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/ |
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CC-BY-NC-SA |
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https://doi.org/10.1038/srep06408 |
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