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 0005000 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 Nor...
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ftunivtasecite:oai:ecite.utas.edu.au:86797 2023-05-15T13:37:23+02:00 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 https://doi.org/10.1002/jqs.2668 http://ecite.utas.edu.au/86797 en eng John Wiley & Sons Ltd http://dx.doi.org/10.1002/jqs.2668 Turney, C and Fogwill, C and van Ommen, TD and Moy, AD and Etheridge, D and Rubino, M and Curran, MAJ and Rivera, A, Late Pleistocene and early Holocene change in the Weddell Sea: a new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica, Journal of Quaternary Science, 28, (7) pp. 697-704. ISSN 0267-8179 (2013) [Refereed Article] http://ecite.utas.edu.au/86797 Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology Refereed Article PeerReviewed 2013 ftunivtasecite https://doi.org/10.1002/jqs.2668 2019-12-13T21:50:46Z The transition from the late Pleistocene to the Holocene (30 0005000 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. Article in Journal/Newspaper Antarc* Antarctic Antarctica Antarctica Journal ice core North Atlantic Sea ice Weddell Sea West Antarctica eCite UTAS (University of Tasmania) Antarctic 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) The Antarctic Weddell Weddell Sea West Antarctica Journal of Quaternary Science 28 7 697 704 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology 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 |
Earth Sciences Physical Geography and Environmental Geoscience Palaeoclimatology |
description |
The transition from the late Pleistocene to the Holocene (30 0005000 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. |
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 |
John Wiley & Sons Ltd |
publishDate |
2013 |
url |
https://doi.org/10.1002/jqs.2668 http://ecite.utas.edu.au/86797 |
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 Bia Ellsworth Mountains Patriot Hills The Antarctic Weddell Weddell Sea West Antarctica |
geographic_facet |
Antarctic Bia Ellsworth Mountains Patriot Hills The Antarctic Weddell Weddell Sea West Antarctica |
genre |
Antarc* Antarctic Antarctica Antarctica Journal ice core North Atlantic Sea ice Weddell Sea West Antarctica |
genre_facet |
Antarc* Antarctic Antarctica Antarctica Journal ice core North Atlantic Sea ice Weddell Sea West Antarctica |
op_relation |
http://dx.doi.org/10.1002/jqs.2668 Turney, C and Fogwill, C and van Ommen, TD and Moy, AD and Etheridge, D and Rubino, M and Curran, MAJ and Rivera, A, Late Pleistocene and early Holocene change in the Weddell Sea: a new climate record from the Patriot Hills, Ellsworth Mountains, West Antarctica, Journal of Quaternary Science, 28, (7) pp. 697-704. ISSN 0267-8179 (2013) [Refereed Article] http://ecite.utas.edu.au/86797 |
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_ |
1766091003451670528 |