Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia
Comparison of ice cores from Greenland and Antarctica shows an asynchronous two-step warming at these high latitudes during the Last Termination. However, the question whether this asynchrony extends to lower latitudes is unclear mainly due to the scarcity of paleorecords from the Southern Hemispher...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/31860 2024-01-14T10:01:41+01:00 Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia Calvo, E Pelejero, Carles De Deckker, Patrick Logan, Graham A http://hdl.handle.net/1885/31860 https://doi.org/10.1029/2007GL029937 https://openresearch-repository.anu.edu.au/bitstream/1885/31860/5/Antarctic_deglacial_DeDeckker.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/31860/7/01_Calvo_Antarctic_deglacial_pattern_in_2007.pdf.jpg unknown American Geophysical Union 0094-8276 http://hdl.handle.net/1885/31860 doi:10.1029/2007GL029937 https://openresearch-repository.anu.edu.au/bitstream/1885/31860/5/Antarctic_deglacial_DeDeckker.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/31860/7/01_Calvo_Antarctic_deglacial_pattern_in_2007.pdf.jpg Geophysical Research Letters Keywords: Atmospheric temperature Climate change Geochronology Glaciers Sea ice Deglacial pattern Hemisphere Paleoclimatic data Sea surface temperature Oceanography deglaciation ice core Northern Hemisphere paleoclimate Southe Journal article ftanucanberra https://doi.org/10.1029/2007GL029937 2023-12-15T09:35:54Z Comparison of ice cores from Greenland and Antarctica shows an asynchronous two-step warming at these high latitudes during the Last Termination. However, the question whether this asynchrony extends to lower latitudes is unclear mainly due to the scarcity of paleorecords from the Southern Hemisphere. New data from a marine core collected off South Australia (∼36°S) allows a detailed reconstruction of sea-surface temperatures over the Last Termination. This confirms the existence of an Antarctic-type deglacial pattern and shows no indication of cooling associated with the Northern Hemisphere YD event. The SST record also provides a new comparison with the more extensive paleoclimatic data available from continental Australia. This shows a strong climatic link between onshore and offshore records for Australia and to Southern Hemisphere paleorecords. We also show a progressive SST drop over the last ∼ 6.5 kyr not seen before for the Australian region. Article in Journal/Newspaper Antarc* Antarctic Antarctica Greenland ice core Sea ice Australian National University: ANU Digital Collections Antarctic Greenland Geophysical Research Letters 34 13 n/a n/a |
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Open Polar |
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Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Atmospheric temperature Climate change Geochronology Glaciers Sea ice Deglacial pattern Hemisphere Paleoclimatic data Sea surface temperature Oceanography deglaciation ice core Northern Hemisphere paleoclimate Southe |
spellingShingle |
Keywords: Atmospheric temperature Climate change Geochronology Glaciers Sea ice Deglacial pattern Hemisphere Paleoclimatic data Sea surface temperature Oceanography deglaciation ice core Northern Hemisphere paleoclimate Southe Calvo, E Pelejero, Carles De Deckker, Patrick Logan, Graham A Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
topic_facet |
Keywords: Atmospheric temperature Climate change Geochronology Glaciers Sea ice Deglacial pattern Hemisphere Paleoclimatic data Sea surface temperature Oceanography deglaciation ice core Northern Hemisphere paleoclimate Southe |
description |
Comparison of ice cores from Greenland and Antarctica shows an asynchronous two-step warming at these high latitudes during the Last Termination. However, the question whether this asynchrony extends to lower latitudes is unclear mainly due to the scarcity of paleorecords from the Southern Hemisphere. New data from a marine core collected off South Australia (∼36°S) allows a detailed reconstruction of sea-surface temperatures over the Last Termination. This confirms the existence of an Antarctic-type deglacial pattern and shows no indication of cooling associated with the Northern Hemisphere YD event. The SST record also provides a new comparison with the more extensive paleoclimatic data available from continental Australia. This shows a strong climatic link between onshore and offshore records for Australia and to Southern Hemisphere paleorecords. We also show a progressive SST drop over the last ∼ 6.5 kyr not seen before for the Australian region. |
format |
Article in Journal/Newspaper |
author |
Calvo, E Pelejero, Carles De Deckker, Patrick Logan, Graham A |
author_facet |
Calvo, E Pelejero, Carles De Deckker, Patrick Logan, Graham A |
author_sort |
Calvo, E |
title |
Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
title_short |
Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
title_full |
Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
title_fullStr |
Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
title_full_unstemmed |
Antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore South Australia |
title_sort |
antarctic deglacial pattern in a 30 kyr record of sea surface temperature offshore south australia |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/1885/31860 https://doi.org/10.1029/2007GL029937 https://openresearch-repository.anu.edu.au/bitstream/1885/31860/5/Antarctic_deglacial_DeDeckker.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/31860/7/01_Calvo_Antarctic_deglacial_pattern_in_2007.pdf.jpg |
geographic |
Antarctic Greenland |
geographic_facet |
Antarctic Greenland |
genre |
Antarc* Antarctic Antarctica Greenland ice core Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Greenland ice core Sea ice |
op_source |
Geophysical Research Letters |
op_relation |
0094-8276 http://hdl.handle.net/1885/31860 doi:10.1029/2007GL029937 https://openresearch-repository.anu.edu.au/bitstream/1885/31860/5/Antarctic_deglacial_DeDeckker.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/31860/7/01_Calvo_Antarctic_deglacial_pattern_in_2007.pdf.jpg |
op_doi |
https://doi.org/10.1029/2007GL029937 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
13 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1788067435486642176 |