Rapid coupling between ice volume and polar temperature over the past 50,000 years
Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to...
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Online Access: | http://hdl.handle.net/1885/70124 https://doi.org/10.1038/nature11593 https://openresearch-repository.anu.edu.au/bitstream/1885/70124/5/f5625xPUB2226_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70124/7/01_Grant_Rapid_coupling_between_ice_2012.pdf.jpg |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/70124 2024-01-14T10:01:07+01:00 Rapid coupling between ice volume and polar temperature over the past 50,000 years Grant, K Rohling, Eelco Bar-Matthews, M Ayalon, A Medina-Elizalde, M Ramsey, Christopher Bronk Satow, C Roberts, Andrew http://hdl.handle.net/1885/70124 https://doi.org/10.1038/nature11593 https://openresearch-repository.anu.edu.au/bitstream/1885/70124/5/f5625xPUB2226_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70124/7/01_Grant_Rapid_coupling_between_ice_2012.pdf.jpg unknown Macmillan Publishers Ltd 0028-0836 http://hdl.handle.net/1885/70124 doi:10.1038/nature11593 https://openresearch-repository.anu.edu.au/bitstream/1885/70124/5/f5625xPUB2226_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70124/7/01_Grant_Rapid_coupling_between_ice_2012.pdf.jpg Nature Keywords: ice climate variation dating method global warming ice cover paleoclimate paleotemperature polar region Quaternary Antarctica article climate change greenhouse effect Greenland priority journal sea level Animals Antarctic Regions Anthozo Journal article ftanucanberra https://doi.org/10.1038/nature11593 2023-12-15T09:35:10Z Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to polar climate change, has so far been impossible because available sea-level records either were dated by using orbital tuning or ice-core timescales, or were discontinuous in time. Here we present an independent dating of a continuous, high-resolution sea-level record in millennial-scale detail throughout the past 150,000 years. We find that the timing of ice-volume fluctuations agrees well with that of variations in Antarctic climate and especially Greenland climate. Amplitudes of ice-volume fluctuations more closely match Antarctic (rather than Greenland) climate changes. Polar climate and ice-volume changes, and their rates of change, are found to covary within centennial response times. Finally, rates of sea-level rise reached at least 1.2 m per century during all major episodes of ice-volume reduction. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland ice core Australian National University: ANU Digital Collections Antarctic Greenland Nature 491 7426 744 747 |
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Open Polar |
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Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: ice climate variation dating method global warming ice cover paleoclimate paleotemperature polar region Quaternary Antarctica article climate change greenhouse effect Greenland priority journal sea level Animals Antarctic Regions Anthozo |
spellingShingle |
Keywords: ice climate variation dating method global warming ice cover paleoclimate paleotemperature polar region Quaternary Antarctica article climate change greenhouse effect Greenland priority journal sea level Animals Antarctic Regions Anthozo Grant, K Rohling, Eelco Bar-Matthews, M Ayalon, A Medina-Elizalde, M Ramsey, Christopher Bronk Satow, C Roberts, Andrew Rapid coupling between ice volume and polar temperature over the past 50,000 years |
topic_facet |
Keywords: ice climate variation dating method global warming ice cover paleoclimate paleotemperature polar region Quaternary Antarctica article climate change greenhouse effect Greenland priority journal sea level Animals Antarctic Regions Anthozo |
description |
Current global warming necessitates a detailed understanding of the relationships between climate and global ice volume. Highly resolved and continuous sea-level records are essential for quantifying ice-volume changes. However, an unbiased study of the timing of past ice-volume changes, relative to polar climate change, has so far been impossible because available sea-level records either were dated by using orbital tuning or ice-core timescales, or were discontinuous in time. Here we present an independent dating of a continuous, high-resolution sea-level record in millennial-scale detail throughout the past 150,000 years. We find that the timing of ice-volume fluctuations agrees well with that of variations in Antarctic climate and especially Greenland climate. Amplitudes of ice-volume fluctuations more closely match Antarctic (rather than Greenland) climate changes. Polar climate and ice-volume changes, and their rates of change, are found to covary within centennial response times. Finally, rates of sea-level rise reached at least 1.2 m per century during all major episodes of ice-volume reduction. |
format |
Article in Journal/Newspaper |
author |
Grant, K Rohling, Eelco Bar-Matthews, M Ayalon, A Medina-Elizalde, M Ramsey, Christopher Bronk Satow, C Roberts, Andrew |
author_facet |
Grant, K Rohling, Eelco Bar-Matthews, M Ayalon, A Medina-Elizalde, M Ramsey, Christopher Bronk Satow, C Roberts, Andrew |
author_sort |
Grant, K |
title |
Rapid coupling between ice volume and polar temperature over the past 50,000 years |
title_short |
Rapid coupling between ice volume and polar temperature over the past 50,000 years |
title_full |
Rapid coupling between ice volume and polar temperature over the past 50,000 years |
title_fullStr |
Rapid coupling between ice volume and polar temperature over the past 50,000 years |
title_full_unstemmed |
Rapid coupling between ice volume and polar temperature over the past 50,000 years |
title_sort |
rapid coupling between ice volume and polar temperature over the past 50,000 years |
publisher |
Macmillan Publishers Ltd |
url |
http://hdl.handle.net/1885/70124 https://doi.org/10.1038/nature11593 https://openresearch-repository.anu.edu.au/bitstream/1885/70124/5/f5625xPUB2226_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70124/7/01_Grant_Rapid_coupling_between_ice_2012.pdf.jpg |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctica Greenland ice core |
genre_facet |
Antarc* Antarctic Antarctica Greenland ice core |
op_source |
Nature |
op_relation |
0028-0836 http://hdl.handle.net/1885/70124 doi:10.1038/nature11593 https://openresearch-repository.anu.edu.au/bitstream/1885/70124/5/f5625xPUB2226_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/70124/7/01_Grant_Rapid_coupling_between_ice_2012.pdf.jpg |
op_doi |
https://doi.org/10.1038/nature11593 |
container_title |
Nature |
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491 |
container_issue |
7426 |
container_start_page |
744 |
op_container_end_page |
747 |
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1788066935098834944 |