Deglacial paleoceanographic history of the Bay of Plenty, New Zealand
We present sea surface temperature (SST) records with centennial-scale resolution from the Bay of Plenty, north of New Zealand. Foraminiferal assemblage-based paleo-SST estimates provide a deglacial record of SST since 16.5 14C ka. Average Holocene SSTs are 15.6C for winter and 20.3C for summer, whe...
Published in: | Paleoceanography |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2005
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2004PA001088 http://ecite.utas.edu.au/39446 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:39446 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:39446 2023-05-15T14:03:55+02:00 Deglacial paleoceanographic history of the Bay of Plenty, New Zealand Samson, CR Sikes, EL Howard, W 2005 https://doi.org/10.1029/2004PA001088 http://ecite.utas.edu.au/39446 en eng American Geophysical Union http://dx.doi.org/10.1029/2004PA001088 Samson, CR and Sikes, EL and Howard, W, Deglacial paleoceanographic history of the Bay of Plenty, New Zealand, Paleoceanography, 20, (4) pp. PA4017. ISSN 0883-8305 (2005) [Refereed Article] http://ecite.utas.edu.au/39446 Earth Sciences Oceanography Chemical Oceanography Refereed Article PeerReviewed 2005 ftunivtasecite https://doi.org/10.1029/2004PA001088 2019-12-13T21:16:53Z We present sea surface temperature (SST) records with centennial-scale resolution from the Bay of Plenty, north of New Zealand. Foraminiferal assemblage-based paleo-SST estimates provide a deglacial record of SST since 16.5 14C ka. Average Holocene SSTs are 15.6C for winter and 20.3C for summer, whereas average glacial values were 14.2C for winter and 19.5C for summer. Compared to modern time, cooling of SSTs at the Last Glacial Maximum (LGM) was 0.9C in winter and 1.5C in summer. The shift from glacial to Holocene temperatures began at 14.25 14C ka, warming by 2C until 12.85 14C ka when temperatures dipped back to glacial values at 11.65 14C ka. The timing of this return to glacial-like SST correlates well with the Antarctic Cold Reversal (ACR) rather than the Younger Dryas and documents that the influence of the ACR extended into the subtropics of the Southern Hemisphere, at least in this region of the southwest Pacific. By 10.55 14C ka an SST maximum in summer SSTs of up to 3C warmer than modern occurred (24C), after which SST dropped, remaining at present-day temperatures since 9.3 14C ka. This early Holocene climatic optimum has been widely noted in the Southern Ocean, and this record indicates that this phenomenon also extended into the subtropics to the north of New Zealand. Copyright 2005 by the American Geophysical Union. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean eCite UTAS (University of Tasmania) Antarctic Bay of Plenty ENVELOPE(-128.761,-128.761,52.837,52.837) New Zealand Pacific Southern Ocean The Antarctic Paleoceanography 20 4 n/a n/a |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Chemical Oceanography |
spellingShingle |
Earth Sciences Oceanography Chemical Oceanography Samson, CR Sikes, EL Howard, W Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
topic_facet |
Earth Sciences Oceanography Chemical Oceanography |
description |
We present sea surface temperature (SST) records with centennial-scale resolution from the Bay of Plenty, north of New Zealand. Foraminiferal assemblage-based paleo-SST estimates provide a deglacial record of SST since 16.5 14C ka. Average Holocene SSTs are 15.6C for winter and 20.3C for summer, whereas average glacial values were 14.2C for winter and 19.5C for summer. Compared to modern time, cooling of SSTs at the Last Glacial Maximum (LGM) was 0.9C in winter and 1.5C in summer. The shift from glacial to Holocene temperatures began at 14.25 14C ka, warming by 2C until 12.85 14C ka when temperatures dipped back to glacial values at 11.65 14C ka. The timing of this return to glacial-like SST correlates well with the Antarctic Cold Reversal (ACR) rather than the Younger Dryas and documents that the influence of the ACR extended into the subtropics of the Southern Hemisphere, at least in this region of the southwest Pacific. By 10.55 14C ka an SST maximum in summer SSTs of up to 3C warmer than modern occurred (24C), after which SST dropped, remaining at present-day temperatures since 9.3 14C ka. This early Holocene climatic optimum has been widely noted in the Southern Ocean, and this record indicates that this phenomenon also extended into the subtropics to the north of New Zealand. Copyright 2005 by the American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Samson, CR Sikes, EL Howard, W |
author_facet |
Samson, CR Sikes, EL Howard, W |
author_sort |
Samson, CR |
title |
Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
title_short |
Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
title_full |
Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
title_fullStr |
Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
title_full_unstemmed |
Deglacial paleoceanographic history of the Bay of Plenty, New Zealand |
title_sort |
deglacial paleoceanographic history of the bay of plenty, new zealand |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://doi.org/10.1029/2004PA001088 http://ecite.utas.edu.au/39446 |
long_lat |
ENVELOPE(-128.761,-128.761,52.837,52.837) |
geographic |
Antarctic Bay of Plenty New Zealand Pacific Southern Ocean The Antarctic |
geographic_facet |
Antarctic Bay of Plenty New Zealand Pacific Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://dx.doi.org/10.1029/2004PA001088 Samson, CR and Sikes, EL and Howard, W, Deglacial paleoceanographic history of the Bay of Plenty, New Zealand, Paleoceanography, 20, (4) pp. PA4017. ISSN 0883-8305 (2005) [Refereed Article] http://ecite.utas.edu.au/39446 |
op_doi |
https://doi.org/10.1029/2004PA001088 |
container_title |
Paleoceanography |
container_volume |
20 |
container_issue |
4 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1766274799291596800 |