Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand
The last interglacial (LIG; ~130 to ~118 thousand years ago, ka) was the last time global sea level rose well above the present level. Greenland Ice Sheet (GrIS) contributions were insufficient to explain the highstand, so that substantial Antarctic Ice Sheet (AIS) reduction is implied. However, the...
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ftunivbergen:oai:bora.uib.no:1956/23808 2023-05-15T13:59:14+02:00 Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand Rohling, E.J. Hibbert, F.D. Grant, K.M. Galaasen, Eirik Vinje Irvali, Nil Kleiven, Helga Flesche Marino, G. Ninnemann, Ulysses S Roberts, A.P. Rosenthal, Y. Schulz, H. Williams, F.H. Yu, J. 2020-02-18T15:55:05Z application/pdf https://hdl.handle.net/1956/23808 https://doi.org/10.1038/s41467-019-12874-3 eng eng Nature Research Norges forskningsråd: 254964 urn:issn:2041-1723 https://hdl.handle.net/1956/23808 https://doi.org/10.1038/s41467-019-12874-3 cristin:1718216 Attribution CC BY http://creativecommons.org/licenses/by/4.0/ Copyright 2019 The Authors Nature Communications Peer reviewed Journal article 2020 ftunivbergen https://doi.org/10.1038/s41467-019-12874-3 2023-03-14T17:44:32Z The last interglacial (LIG; ~130 to ~118 thousand years ago, ka) was the last time global sea level rose well above the present level. Greenland Ice Sheet (GrIS) contributions were insufficient to explain the highstand, so that substantial Antarctic Ice Sheet (AIS) reduction is implied. However, the nature and drivers of GrIS and AIS reductions remain enigmatic, even though they may be critical for understanding future sea-level rise. Here we complement existing records with new data, and reveal that the LIG contained an AIS-derived highstand from ~129.5 to ~125 ka, a lowstand centred on 125–124 ka, and joint AIS + GrIS contributions from ~123.5 to ~118 ka. Moreover, a dual substructure within the first highstand suggests temporal variability in the AIS contributions. Implied rates of sea-level rise are high (up to several meters per century; m c−1), and lend credibility to high rates inferred by ice modelling under certain ice-shelf instability parameterisations. publishedVersion Article in Journal/Newspaper Antarc* Antarctic Greenland Ice Sheet Ice Shelf University of Bergen: Bergen Open Research Archive (BORA-UiB) Antarctic Greenland Nature Communications 10 1 |
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Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
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ftunivbergen |
language |
English |
description |
The last interglacial (LIG; ~130 to ~118 thousand years ago, ka) was the last time global sea level rose well above the present level. Greenland Ice Sheet (GrIS) contributions were insufficient to explain the highstand, so that substantial Antarctic Ice Sheet (AIS) reduction is implied. However, the nature and drivers of GrIS and AIS reductions remain enigmatic, even though they may be critical for understanding future sea-level rise. Here we complement existing records with new data, and reveal that the LIG contained an AIS-derived highstand from ~129.5 to ~125 ka, a lowstand centred on 125–124 ka, and joint AIS + GrIS contributions from ~123.5 to ~118 ka. Moreover, a dual substructure within the first highstand suggests temporal variability in the AIS contributions. Implied rates of sea-level rise are high (up to several meters per century; m c−1), and lend credibility to high rates inferred by ice modelling under certain ice-shelf instability parameterisations. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Rohling, E.J. Hibbert, F.D. Grant, K.M. Galaasen, Eirik Vinje Irvali, Nil Kleiven, Helga Flesche Marino, G. Ninnemann, Ulysses S Roberts, A.P. Rosenthal, Y. Schulz, H. Williams, F.H. Yu, J. |
spellingShingle |
Rohling, E.J. Hibbert, F.D. Grant, K.M. Galaasen, Eirik Vinje Irvali, Nil Kleiven, Helga Flesche Marino, G. Ninnemann, Ulysses S Roberts, A.P. Rosenthal, Y. Schulz, H. Williams, F.H. Yu, J. Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
author_facet |
Rohling, E.J. Hibbert, F.D. Grant, K.M. Galaasen, Eirik Vinje Irvali, Nil Kleiven, Helga Flesche Marino, G. Ninnemann, Ulysses S Roberts, A.P. Rosenthal, Y. Schulz, H. Williams, F.H. Yu, J. |
author_sort |
Rohling, E.J. |
title |
Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
title_short |
Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
title_full |
Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
title_fullStr |
Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
title_full_unstemmed |
Asynchronous Antarctic and Greenland ice-volume contributions to the last interglacial sea-level highstand |
title_sort |
asynchronous antarctic and greenland ice-volume contributions to the last interglacial sea-level highstand |
publisher |
Nature Research |
publishDate |
2020 |
url |
https://hdl.handle.net/1956/23808 https://doi.org/10.1038/s41467-019-12874-3 |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Greenland Ice Sheet Ice Shelf |
genre_facet |
Antarc* Antarctic Greenland Ice Sheet Ice Shelf |
op_source |
Nature Communications |
op_relation |
Norges forskningsråd: 254964 urn:issn:2041-1723 https://hdl.handle.net/1956/23808 https://doi.org/10.1038/s41467-019-12874-3 cristin:1718216 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/4.0/ Copyright 2019 The Authors |
op_doi |
https://doi.org/10.1038/s41467-019-12874-3 |
container_title |
Nature Communications |
container_volume |
10 |
container_issue |
1 |
_version_ |
1766267758073348096 |