Eemian interglacial reconstructed from a Greenland folded ice core
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to the warmer-than-present climate of the Eemian has thus remained unclear. Here we present the new North...
Published in: | Nature |
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London, Springer Science and Business Media LLC
2022
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Online Access: | https://doi.org/10.1038/nature11789 http://infoscience.epfl.ch/record/298312 |
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ftinfoscience:oai:infoscience.epfl.ch:298312 2023-05-15T13:43:17+02:00 Eemian interglacial reconstructed from a Greenland folded ice core Dahl-Jensen, D. Albert, M. R. Aldahan, A. Azuma, N. Balslev-Clausen, D. Baumgartner, M. Berggren, A.-M. Bigler, M. Binder, T. Blunier, T. Bourgeois, J. C. Brook, E. J. Buchardt, S. L. Buizert, C. Capron, E. Chappellaz, J. Chung, J. Clausen, H. B. Cvijanovic, I. Davies, S. M. Ditlevsen, P. Eicher, O. Fischer, H. Fisher, D. A. Fleet, L. G. Gfeller, G. Gkinis, V. Gogineni, S. Goto-Azuma, K. Grinsted, A. Gudlaugsdottir, H. Guillevic, M. Hansen, S. B. Hansson, M. Hirabayashi, M. Hong, S. Hur, S. D. Huybrechts, P. Hvidberg, C. S. Iizuka, Y. Jenk, T. Johnsen, S. J. Jones, T. R. Jouzel, J. Karlsson, N. B. Kawamura, K. Keegan, K. Kettner, E. Kipfstuhl, S. Kjaer, H. A. 2022-11-23T16:11:19Z https://doi.org/10.1038/nature11789 http://infoscience.epfl.ch/record/298312 unknown London, Springer Science and Business Media LLC doi:10.1038/nature11789 isi:000313871400029 http://infoscience.epfl.ch/record/298312 http://infoscience.epfl.ch/record/298312 Text 2022 ftinfoscience https://doi.org/10.1038/nature11789 2023-02-13T23:12:29Z Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to the warmer-than-present climate of the Eemian has thus remained unclear. Here we present the new North Greenland Eemian Ice Drilling ('NEEM') ice core and show only a modest ice-sheet response to the strong warming in the early Eemian. We reconstructed the Eemian record from folded ice using globally homogeneous parameters known from dated Greenland and Antarctic ice-core records. On the basis of water stable isotopes, NEEM surface temperatures after the onset of the Eemian (126,000 years ago) peaked at 8 ± 4 degrees Celsius above the mean of the past millennium, followed by a gradual cooling that was probably driven by the decreasing summer insolation. Between 128,000 and 122,000 years ago, the thickness of the northwest Greenland ice sheet decreased by 400 ± 250 metres, reaching surface elevations 122,000 years ago of 130 ± 300 metres lower than the present. Extensive surface melt occurred at the NEEM site during the Eemian, a phenomenon witnessed when melt layers formed again at NEEM during the exceptional heat of July 2012. With additional warming, surface melt might become more common in the future. © 2013 Macmillan Publishers Limited. All rights reserved. Text Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet North Greenland EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) Antarctic Greenland Nature 493 7433 489 494 |
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EPFL Infoscience (Ecole Polytechnique Fédérale Lausanne) |
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ftinfoscience |
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unknown |
description |
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to the warmer-than-present climate of the Eemian has thus remained unclear. Here we present the new North Greenland Eemian Ice Drilling ('NEEM') ice core and show only a modest ice-sheet response to the strong warming in the early Eemian. We reconstructed the Eemian record from folded ice using globally homogeneous parameters known from dated Greenland and Antarctic ice-core records. On the basis of water stable isotopes, NEEM surface temperatures after the onset of the Eemian (126,000 years ago) peaked at 8 ± 4 degrees Celsius above the mean of the past millennium, followed by a gradual cooling that was probably driven by the decreasing summer insolation. Between 128,000 and 122,000 years ago, the thickness of the northwest Greenland ice sheet decreased by 400 ± 250 metres, reaching surface elevations 122,000 years ago of 130 ± 300 metres lower than the present. Extensive surface melt occurred at the NEEM site during the Eemian, a phenomenon witnessed when melt layers formed again at NEEM during the exceptional heat of July 2012. With additional warming, surface melt might become more common in the future. © 2013 Macmillan Publishers Limited. All rights reserved. |
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Text |
author |
Dahl-Jensen, D. Albert, M. R. Aldahan, A. Azuma, N. Balslev-Clausen, D. Baumgartner, M. Berggren, A.-M. Bigler, M. Binder, T. Blunier, T. Bourgeois, J. C. Brook, E. J. Buchardt, S. L. Buizert, C. Capron, E. Chappellaz, J. Chung, J. Clausen, H. B. Cvijanovic, I. Davies, S. M. Ditlevsen, P. Eicher, O. Fischer, H. Fisher, D. A. Fleet, L. G. Gfeller, G. Gkinis, V. Gogineni, S. Goto-Azuma, K. Grinsted, A. Gudlaugsdottir, H. Guillevic, M. Hansen, S. B. Hansson, M. Hirabayashi, M. Hong, S. Hur, S. D. Huybrechts, P. Hvidberg, C. S. Iizuka, Y. Jenk, T. Johnsen, S. J. Jones, T. R. Jouzel, J. Karlsson, N. B. Kawamura, K. Keegan, K. Kettner, E. Kipfstuhl, S. Kjaer, H. A. |
spellingShingle |
Dahl-Jensen, D. Albert, M. R. Aldahan, A. Azuma, N. Balslev-Clausen, D. Baumgartner, M. Berggren, A.-M. Bigler, M. Binder, T. Blunier, T. Bourgeois, J. C. Brook, E. J. Buchardt, S. L. Buizert, C. Capron, E. Chappellaz, J. Chung, J. Clausen, H. B. Cvijanovic, I. Davies, S. M. Ditlevsen, P. Eicher, O. Fischer, H. Fisher, D. A. Fleet, L. G. Gfeller, G. Gkinis, V. Gogineni, S. Goto-Azuma, K. Grinsted, A. Gudlaugsdottir, H. Guillevic, M. Hansen, S. B. Hansson, M. Hirabayashi, M. Hong, S. Hur, S. D. Huybrechts, P. Hvidberg, C. S. Iizuka, Y. Jenk, T. Johnsen, S. J. Jones, T. R. Jouzel, J. Karlsson, N. B. Kawamura, K. Keegan, K. Kettner, E. Kipfstuhl, S. Kjaer, H. A. Eemian interglacial reconstructed from a Greenland folded ice core |
author_facet |
Dahl-Jensen, D. Albert, M. R. Aldahan, A. Azuma, N. Balslev-Clausen, D. Baumgartner, M. Berggren, A.-M. Bigler, M. Binder, T. Blunier, T. Bourgeois, J. C. Brook, E. J. Buchardt, S. L. Buizert, C. Capron, E. Chappellaz, J. Chung, J. Clausen, H. B. Cvijanovic, I. Davies, S. M. Ditlevsen, P. Eicher, O. Fischer, H. Fisher, D. A. Fleet, L. G. Gfeller, G. Gkinis, V. Gogineni, S. Goto-Azuma, K. Grinsted, A. Gudlaugsdottir, H. Guillevic, M. Hansen, S. B. Hansson, M. Hirabayashi, M. Hong, S. Hur, S. D. Huybrechts, P. Hvidberg, C. S. Iizuka, Y. Jenk, T. Johnsen, S. J. Jones, T. R. Jouzel, J. Karlsson, N. B. Kawamura, K. Keegan, K. Kettner, E. Kipfstuhl, S. Kjaer, H. A. |
author_sort |
Dahl-Jensen, D. |
title |
Eemian interglacial reconstructed from a Greenland folded ice core |
title_short |
Eemian interglacial reconstructed from a Greenland folded ice core |
title_full |
Eemian interglacial reconstructed from a Greenland folded ice core |
title_fullStr |
Eemian interglacial reconstructed from a Greenland folded ice core |
title_full_unstemmed |
Eemian interglacial reconstructed from a Greenland folded ice core |
title_sort |
eemian interglacial reconstructed from a greenland folded ice core |
publisher |
London, Springer Science and Business Media LLC |
publishDate |
2022 |
url |
https://doi.org/10.1038/nature11789 http://infoscience.epfl.ch/record/298312 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet North Greenland |
genre_facet |
Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet North Greenland |
op_source |
http://infoscience.epfl.ch/record/298312 |
op_relation |
doi:10.1038/nature11789 isi:000313871400029 http://infoscience.epfl.ch/record/298312 |
op_doi |
https://doi.org/10.1038/nature11789 |
container_title |
Nature |
container_volume |
493 |
container_issue |
7433 |
container_start_page |
489 |
op_container_end_page |
494 |
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1766186807768121344 |