Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica
The transition from the late Pleistocene to the Holocene (30 000-5000 years ago) was a period of considerable climate variability, which has been associated with changes in deep water formation and the intensity of the Meridional Overturning Circulation. Although numerous records exist across the No...
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Online Access: | http://hdl.handle.net/1959.4/unsworks_37180 https://doi.org/10.1002/jqs.2668 |
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ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_37180 2024-05-12T07:56:39+00:00 Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica Turney, C Fogwill, C Van Ommen, TD Moy, AD Etheridge, D Rubino, M Curran, MAJ Rivera, A 2013-10-01 http://hdl.handle.net/1959.4/unsworks_37180 https://doi.org/10.1002/jqs.2668 unknown Wiley http://purl.org/au-research/grants/arc/LP120200724 http://hdl.handle.net/1959.4/unsworks_37180 https://doi.org/10.1002/jqs.2668 metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ urn:ISSN:0267-8179 urn:ISSN:1099-1417 Journal of Quaternary Science, 28, 7, 697-704 13 Climate Action anzsrc-for: 0403 Geology anzsrc-for: 0406 Physical Geography and Environmental Geoscience anzsrc-for: 2101 Archaeology journal article http://purl.org/coar/resource_type/c_6501 2013 ftunswworks https://doi.org/10.1002/jqs.2668 2024-04-17T15:02:21Z The transition from the late Pleistocene to the Holocene (30 000-5000 years ago) was a period of considerable climate variability, which has been associated with changes in deep water formation and the intensity of the Meridional Overturning Circulation. Although numerous records exist across the North Atlantic region, few Antarctic ice core records have been obtained from the south. Here we exploit the potential of upwelling ancient ice - so-called blue ice areas (BIAs) - from the Patriot Hills in the Ellsworth Mountains to derive the first deuterium isotope record (δD) from continental Antarctica south of the Weddell Sea. Gas analysis and glaciological considerations provide a first relative chronology. Inferred temperature trends from the Patriot Hills BIA and snow pit suggest changing climate influences during the transition between the last glacial period and Holocene. Under modern conditions, the interplay between the Antarctic high-pressure system and the Southern Annular Mode appears to play a significant role in controlling katabatic wind flow over the site while the BIA record suggests that greater sea ice extent during the last glacial period was a major control. Our results demonstrate the considerable potential of the Patriot Hills site for reconstructing past climate change in the south Atlantic region. © 2013 John Wiley & Sons, Ltd. Article in Journal/Newspaper Antarc* Antarctic Antarctica ice core North Atlantic Sea ice Weddell Sea West Antarctica UNSW Sydney (The University of New South Wales): UNSWorks Antarctic The Antarctic Weddell Sea West Antarctica Weddell Bia ENVELOPE(22.891,22.891,70.317,70.317) Ellsworth Mountains ENVELOPE(-85.000,-85.000,-78.750,-78.750) Patriot Hills ENVELOPE(-81.333,-81.333,-80.333,-80.333) Journal of Quaternary Science 28 7 697 704 |
institution |
Open Polar |
collection |
UNSW Sydney (The University of New South Wales): UNSWorks |
op_collection_id |
ftunswworks |
language |
unknown |
topic |
13 Climate Action anzsrc-for: 0403 Geology anzsrc-for: 0406 Physical Geography and Environmental Geoscience anzsrc-for: 2101 Archaeology |
spellingShingle |
13 Climate Action anzsrc-for: 0403 Geology anzsrc-for: 0406 Physical Geography and Environmental Geoscience anzsrc-for: 2101 Archaeology Turney, C Fogwill, C Van Ommen, TD Moy, AD Etheridge, D Rubino, M Curran, MAJ Rivera, A Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
topic_facet |
13 Climate Action anzsrc-for: 0403 Geology anzsrc-for: 0406 Physical Geography and Environmental Geoscience anzsrc-for: 2101 Archaeology |
description |
The transition from the late Pleistocene to the Holocene (30 000-5000 years ago) was a period of considerable climate variability, which has been associated with changes in deep water formation and the intensity of the Meridional Overturning Circulation. Although numerous records exist across the North Atlantic region, few Antarctic ice core records have been obtained from the south. Here we exploit the potential of upwelling ancient ice - so-called blue ice areas (BIAs) - from the Patriot Hills in the Ellsworth Mountains to derive the first deuterium isotope record (δD) from continental Antarctica south of the Weddell Sea. Gas analysis and glaciological considerations provide a first relative chronology. Inferred temperature trends from the Patriot Hills BIA and snow pit suggest changing climate influences during the transition between the last glacial period and Holocene. Under modern conditions, the interplay between the Antarctic high-pressure system and the Southern Annular Mode appears to play a significant role in controlling katabatic wind flow over the site while the BIA record suggests that greater sea ice extent during the last glacial period was a major control. Our results demonstrate the considerable potential of the Patriot Hills site for reconstructing past climate change in the south Atlantic region. © 2013 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Turney, C Fogwill, C Van Ommen, TD Moy, AD Etheridge, D Rubino, M Curran, MAJ Rivera, A |
author_facet |
Turney, C Fogwill, C Van Ommen, TD Moy, AD Etheridge, D Rubino, M Curran, MAJ Rivera, A |
author_sort |
Turney, C |
title |
Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
title_short |
Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
title_full |
Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
title_fullStr |
Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
title_full_unstemmed |
Late Pleistocene and early Holocene change in the Weddell Sea: A new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica |
title_sort |
late pleistocene and early holocene change in the weddell sea: a new climate record from the patriot hills, ellsworth mountains, west antarctica |
publisher |
Wiley |
publishDate |
2013 |
url |
http://hdl.handle.net/1959.4/unsworks_37180 https://doi.org/10.1002/jqs.2668 |
long_lat |
ENVELOPE(22.891,22.891,70.317,70.317) ENVELOPE(-85.000,-85.000,-78.750,-78.750) ENVELOPE(-81.333,-81.333,-80.333,-80.333) |
geographic |
Antarctic The Antarctic Weddell Sea West Antarctica Weddell Bia Ellsworth Mountains Patriot Hills |
geographic_facet |
Antarctic The Antarctic Weddell Sea West Antarctica Weddell Bia Ellsworth Mountains Patriot Hills |
genre |
Antarc* Antarctic Antarctica ice core North Atlantic Sea ice Weddell Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica ice core North Atlantic Sea ice Weddell Sea West Antarctica |
op_source |
urn:ISSN:0267-8179 urn:ISSN:1099-1417 Journal of Quaternary Science, 28, 7, 697-704 |
op_relation |
http://purl.org/au-research/grants/arc/LP120200724 http://hdl.handle.net/1959.4/unsworks_37180 https://doi.org/10.1002/jqs.2668 |
op_rights |
metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1002/jqs.2668 |
container_title |
Journal of Quaternary Science |
container_volume |
28 |
container_issue |
7 |
container_start_page |
697 |
op_container_end_page |
704 |
_version_ |
1798836844110020608 |