Eemian interglacial reconstructed from 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...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/130640 https://dipot.ulb.ac.be/dspace/bitstream/2013/130640/1/nature11789.pdf |
id |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/130640 |
---|---|
record_format |
openpolar |
spelling |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/130640 2023-05-15T13:37:29+02:00 Eemian interglacial reconstructed from Greenland folded ice core Dahl-Jensen, Dorthe Pattyn, Frank Tison, Jean-Louis Sapart, Célia 2013-01 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/130640 https://dipot.ulb.ac.be/dspace/bitstream/2013/130640/1/nature11789.pdf en eng uri/info:doi/10.1038/nature11789 uri/info:pii/nature11789 uri/info:pmid/23344358 uri/info:scp/84872976669 uri/info:ulb-repo/set/1 https://dipot.ulb.ac.be/dspace/bitstream/2013/130640/1/nature11789.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/130640 1 full-text file(s): info:eu-repo/semantics/closedAccess Nature (London), 493 (7433 Climatologie Géodésie appliquée topographie [géodésie] Glaciologie Mécanique des milieux continus Global Warming -- history Ice Cover info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2013 ftunivbruxelles 2022-06-12T22:09:17Z 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. 0 NEEM community Members SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Greenland Greenland ice core ice core Ice Sheet North Greenland DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Géodésie ENVELOPE(139.846,139.846,-66.675,-66.675) Greenland |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Climatologie Géodésie appliquée topographie [géodésie] Glaciologie Mécanique des milieux continus Global Warming -- history Ice Cover |
spellingShingle |
Climatologie Géodésie appliquée topographie [géodésie] Glaciologie Mécanique des milieux continus Global Warming -- history Ice Cover Dahl-Jensen, Dorthe Pattyn, Frank Tison, Jean-Louis Sapart, Célia Eemian interglacial reconstructed from Greenland folded ice core |
topic_facet |
Climatologie Géodésie appliquée topographie [géodésie] Glaciologie Mécanique des milieux continus Global Warming -- history Ice Cover |
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. 0 NEEM community Members SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Dahl-Jensen, Dorthe Pattyn, Frank Tison, Jean-Louis Sapart, Célia |
author_facet |
Dahl-Jensen, Dorthe Pattyn, Frank Tison, Jean-Louis Sapart, Célia |
author_sort |
Dahl-Jensen, Dorthe |
title |
Eemian interglacial reconstructed from Greenland folded ice core |
title_short |
Eemian interglacial reconstructed from Greenland folded ice core |
title_full |
Eemian interglacial reconstructed from Greenland folded ice core |
title_fullStr |
Eemian interglacial reconstructed from Greenland folded ice core |
title_full_unstemmed |
Eemian interglacial reconstructed from Greenland folded ice core |
title_sort |
eemian interglacial reconstructed from greenland folded ice core |
publishDate |
2013 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/130640 https://dipot.ulb.ac.be/dspace/bitstream/2013/130640/1/nature11789.pdf |
long_lat |
ENVELOPE(139.846,139.846,-66.675,-66.675) |
geographic |
Antarctic Géodésie Greenland |
geographic_facet |
Antarctic Géodésie 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 |
Nature (London), 493 (7433 |
op_relation |
uri/info:doi/10.1038/nature11789 uri/info:pii/nature11789 uri/info:pmid/23344358 uri/info:scp/84872976669 uri/info:ulb-repo/set/1 https://dipot.ulb.ac.be/dspace/bitstream/2013/130640/1/nature11789.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/130640 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/closedAccess |
_version_ |
1766092478265425920 |