Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse.
Several studies have suggested that sea-level rise during the last interglacial implies retreat of the West Antarctic Ice Sheet (WAIS). The prevalent hypothesis is that the retreat coincided with the peak Antarctic temperature and stable water isotope values from 128,000 years ago (128 ka); very ear...
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Online Access: | https://eprints.whiterose.ac.uk/103982/ https://eprints.whiterose.ac.uk/103982/1/ncomms12293.pdf https://doi.org/10.1038/ncomms12293 |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:103982 2023-05-15T13:49:59+02:00 Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. Holloway, MD Sime, LC Singarayer, JS Tindall, JC Bunch, P Valdes, PJ 2016-08-16 text https://eprints.whiterose.ac.uk/103982/ https://eprints.whiterose.ac.uk/103982/1/ncomms12293.pdf https://doi.org/10.1038/ncomms12293 en eng Nature Publishing Group https://eprints.whiterose.ac.uk/103982/1/ncomms12293.pdf Holloway, MD, Sime, LC, Singarayer, JS et al. (3 more authors) (2016) Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. Nature Communications, 7. 12293. Article NonPeerReviewed 2016 ftleedsuniv https://doi.org/10.1038/ncomms12293 2023-01-30T21:45:33Z Several studies have suggested that sea-level rise during the last interglacial implies retreat of the West Antarctic Ice Sheet (WAIS). The prevalent hypothesis is that the retreat coincided with the peak Antarctic temperature and stable water isotope values from 128,000 years ago (128 ka); very early in the last interglacial. Here, by analysing climate model simulations of last interglacial WAIS loss featuring water isotopes, we show instead that the isotopic response to WAIS loss is in opposition to the isotopic evidence at 128 ka. Instead, a reduction in winter sea ice area of 65±7% fully explains the 128 ka ice core evidence. Our finding of a marked retreat of the sea ice at 128 ka demonstrates the sensitivity of Antarctic sea ice extent to climate warming. Article in Journal/Newspaper Antarc* Antarctic ice core Ice Sheet Sea ice White Rose Research Online (Universities of Leeds, Sheffield & York) Antarctic West Antarctic Ice Sheet Nature Communications 7 1 |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
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English |
description |
Several studies have suggested that sea-level rise during the last interglacial implies retreat of the West Antarctic Ice Sheet (WAIS). The prevalent hypothesis is that the retreat coincided with the peak Antarctic temperature and stable water isotope values from 128,000 years ago (128 ka); very early in the last interglacial. Here, by analysing climate model simulations of last interglacial WAIS loss featuring water isotopes, we show instead that the isotopic response to WAIS loss is in opposition to the isotopic evidence at 128 ka. Instead, a reduction in winter sea ice area of 65±7% fully explains the 128 ka ice core evidence. Our finding of a marked retreat of the sea ice at 128 ka demonstrates the sensitivity of Antarctic sea ice extent to climate warming. |
format |
Article in Journal/Newspaper |
author |
Holloway, MD Sime, LC Singarayer, JS Tindall, JC Bunch, P Valdes, PJ |
spellingShingle |
Holloway, MD Sime, LC Singarayer, JS Tindall, JC Bunch, P Valdes, PJ Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
author_facet |
Holloway, MD Sime, LC Singarayer, JS Tindall, JC Bunch, P Valdes, PJ |
author_sort |
Holloway, MD |
title |
Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
title_short |
Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
title_full |
Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
title_fullStr |
Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
title_full_unstemmed |
Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
title_sort |
antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. |
publisher |
Nature Publishing Group |
publishDate |
2016 |
url |
https://eprints.whiterose.ac.uk/103982/ https://eprints.whiterose.ac.uk/103982/1/ncomms12293.pdf https://doi.org/10.1038/ncomms12293 |
geographic |
Antarctic West Antarctic Ice Sheet |
geographic_facet |
Antarctic West Antarctic Ice Sheet |
genre |
Antarc* Antarctic ice core Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic ice core Ice Sheet Sea ice |
op_relation |
https://eprints.whiterose.ac.uk/103982/1/ncomms12293.pdf Holloway, MD, Sime, LC, Singarayer, JS et al. (3 more authors) (2016) Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. Nature Communications, 7. 12293. |
op_doi |
https://doi.org/10.1038/ncomms12293 |
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Nature Communications |
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7 |
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1 |
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1766252674089484288 |