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://centaur.reading.ac.uk/66728/ https://centaur.reading.ac.uk/66728/7/ncomms12293.pdf https://centaur.reading.ac.uk/66728/1/77074_2_fig_0_l4ylcl.pdf https://doi.org/10.1038/ncomms12293 |
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ftunivreading:oai:centaur.reading.ac.uk:66728 2024-05-19T07:32:22+00:00 Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse Holloway, Max D. Sime, Louise C. Singarayer, Joy S. Tindall, Julia C. Bunch, Pete Valdes, Paul J. 2016-08-16 text https://centaur.reading.ac.uk/66728/ https://centaur.reading.ac.uk/66728/7/ncomms12293.pdf https://centaur.reading.ac.uk/66728/1/77074_2_fig_0_l4ylcl.pdf https://doi.org/10.1038/ncomms12293 en eng Nature Publishing Group https://centaur.reading.ac.uk/66728/7/ncomms12293.pdf https://centaur.reading.ac.uk/66728/1/77074_2_fig_0_l4ylcl.pdf Holloway, M. D., Sime, L. C., Singarayer, J. S. <https://centaur.reading.ac.uk/view/creators/90005422.html>, Tindall, J. C., Bunch, P. and Valdes, P. J. (2016) Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. Nature Communications, 7. 12293. ISSN 2041-1723 doi: https://doi.org/10.1038/ncomms12293 <https://doi.org/10.1038/ncomms12293> cc_by_4 Article PeerReviewed 2016 ftunivreading https://doi.org/10.1038/ncomms12293 2024-04-24T00:11:11Z 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 CentAUR: Central Archive at the University of Reading Nature Communications 7 1 |
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CentAUR: Central Archive at the University of Reading |
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ftunivreading |
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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, Max D. Sime, Louise C. Singarayer, Joy S. Tindall, Julia C. Bunch, Pete Valdes, Paul J. |
spellingShingle |
Holloway, Max D. Sime, Louise C. Singarayer, Joy S. Tindall, Julia C. Bunch, Pete Valdes, Paul J. Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse |
author_facet |
Holloway, Max D. Sime, Louise C. Singarayer, Joy S. Tindall, Julia C. Bunch, Pete Valdes, Paul J. |
author_sort |
Holloway, Max D. |
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://centaur.reading.ac.uk/66728/ https://centaur.reading.ac.uk/66728/7/ncomms12293.pdf https://centaur.reading.ac.uk/66728/1/77074_2_fig_0_l4ylcl.pdf https://doi.org/10.1038/ncomms12293 |
genre |
Antarc* Antarctic ice core Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic ice core Ice Sheet Sea ice |
op_relation |
https://centaur.reading.ac.uk/66728/7/ncomms12293.pdf https://centaur.reading.ac.uk/66728/1/77074_2_fig_0_l4ylcl.pdf Holloway, M. D., Sime, L. C., Singarayer, J. S. <https://centaur.reading.ac.uk/view/creators/90005422.html>, Tindall, J. C., Bunch, P. and Valdes, P. J. (2016) Antarctic last interglacial isotope peak in response to sea ice retreat not ice-sheet collapse. Nature Communications, 7. 12293. ISSN 2041-1723 doi: https://doi.org/10.1038/ncomms12293 <https://doi.org/10.1038/ncomms12293> |
op_rights |
cc_by_4 |
op_doi |
https://doi.org/10.1038/ncomms12293 |
container_title |
Nature Communications |
container_volume |
7 |
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1 |
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1799470401588297728 |