Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability
Abrupt climate transitions, known as Dansgaard-Oeschger and Heinrich events, occurred frequently during the last glacial period, specifically from 80-11 thousand years before present, but were nearly absent during interglacial periods and the early stages of glacial periods, when major ice-sheets we...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/62067 2024-01-14T10:04:15+01:00 Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability Hu, Aixue Meehl, Gerald A Han, Weiqing Timmermann, Axel Otto-Bliesner, Bette L. Liu, Zhengyu Washington, Warren M Large, William Abe-Ouchi, Ayako Kimoto, Masahide Wu, Bingyi Lambeck, Kurt http://hdl.handle.net/1885/62067 https://doi.org/10.1073/pnas.1116014109 https://openresearch-repository.anu.edu.au/bitstream/1885/62067/5/f5625xPUB665_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/62067/7/01_Hu_Role_of_the_Bering_Strait_on_2012.pdf.jpg unknown National Academy of Sciences (USA) 0027-8424 http://hdl.handle.net/1885/62067 doi:10.1073/pnas.1116014109 https://openresearch-repository.anu.edu.au/bitstream/1885/62067/5/f5625xPUB665_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/62067/7/01_Hu_Role_of_the_Bering_Strait_on_2012.pdf.jpg Author/s retain copyright PNAS - Proceedings of the National Academy of Sciences of the United States of America Keywords: Arctic article atmosphere climate change glacial period greenhouse effect human hysteresis ice sheet Pacific Ocean priority journal United States Abrupt climate transitions Atlantic meridional overturning circulation Journal article ftanucanberra https://doi.org/10.1073/pnas.1116014109 2023-12-15T09:35:31Z Abrupt climate transitions, known as Dansgaard-Oeschger and Heinrich events, occurred frequently during the last glacial period, specifically from 80-11 thousand years before present, but were nearly absent during interglacial periods and the early stages of glacial periods, when major ice-sheets were still forming. Here we show, with a fully coupled state-of-the-art climate model, that closing the Bering Strait and preventing its throughflow between the Pacific and Arctic Oceans during the glacial period can lead to the emergence of stronger hysteresis behavior of the ocean conveyor belt circulation to create conditions that are conducive to triggering abrupt climate transitions. Hence, it is argued that even for greenhouse warming, abrupt climate transitions similar to those in the last glacial time are unlikely to occur as the Bering Strait remains open. Article in Journal/Newspaper Arctic Bering Strait Climate change Ice Sheet Australian National University: ANU Digital Collections Arctic Bering Strait Pacific Proceedings of the National Academy of Sciences 109 17 6417 6422 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Arctic article atmosphere climate change glacial period greenhouse effect human hysteresis ice sheet Pacific Ocean priority journal United States Abrupt climate transitions Atlantic meridional overturning circulation |
spellingShingle |
Keywords: Arctic article atmosphere climate change glacial period greenhouse effect human hysteresis ice sheet Pacific Ocean priority journal United States Abrupt climate transitions Atlantic meridional overturning circulation Hu, Aixue Meehl, Gerald A Han, Weiqing Timmermann, Axel Otto-Bliesner, Bette L. Liu, Zhengyu Washington, Warren M Large, William Abe-Ouchi, Ayako Kimoto, Masahide Wu, Bingyi Lambeck, Kurt Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
topic_facet |
Keywords: Arctic article atmosphere climate change glacial period greenhouse effect human hysteresis ice sheet Pacific Ocean priority journal United States Abrupt climate transitions Atlantic meridional overturning circulation |
description |
Abrupt climate transitions, known as Dansgaard-Oeschger and Heinrich events, occurred frequently during the last glacial period, specifically from 80-11 thousand years before present, but were nearly absent during interglacial periods and the early stages of glacial periods, when major ice-sheets were still forming. Here we show, with a fully coupled state-of-the-art climate model, that closing the Bering Strait and preventing its throughflow between the Pacific and Arctic Oceans during the glacial period can lead to the emergence of stronger hysteresis behavior of the ocean conveyor belt circulation to create conditions that are conducive to triggering abrupt climate transitions. Hence, it is argued that even for greenhouse warming, abrupt climate transitions similar to those in the last glacial time are unlikely to occur as the Bering Strait remains open. |
format |
Article in Journal/Newspaper |
author |
Hu, Aixue Meehl, Gerald A Han, Weiqing Timmermann, Axel Otto-Bliesner, Bette L. Liu, Zhengyu Washington, Warren M Large, William Abe-Ouchi, Ayako Kimoto, Masahide Wu, Bingyi Lambeck, Kurt |
author_facet |
Hu, Aixue Meehl, Gerald A Han, Weiqing Timmermann, Axel Otto-Bliesner, Bette L. Liu, Zhengyu Washington, Warren M Large, William Abe-Ouchi, Ayako Kimoto, Masahide Wu, Bingyi Lambeck, Kurt |
author_sort |
Hu, Aixue |
title |
Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
title_short |
Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
title_full |
Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
title_fullStr |
Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
title_full_unstemmed |
Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
title_sort |
role of the bering strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
publisher |
National Academy of Sciences (USA) |
url |
http://hdl.handle.net/1885/62067 https://doi.org/10.1073/pnas.1116014109 https://openresearch-repository.anu.edu.au/bitstream/1885/62067/5/f5625xPUB665_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/62067/7/01_Hu_Role_of_the_Bering_Strait_on_2012.pdf.jpg |
geographic |
Arctic Bering Strait Pacific |
geographic_facet |
Arctic Bering Strait Pacific |
genre |
Arctic Bering Strait Climate change Ice Sheet |
genre_facet |
Arctic Bering Strait Climate change Ice Sheet |
op_source |
PNAS - Proceedings of the National Academy of Sciences of the United States of America |
op_relation |
0027-8424 http://hdl.handle.net/1885/62067 doi:10.1073/pnas.1116014109 https://openresearch-repository.anu.edu.au/bitstream/1885/62067/5/f5625xPUB665_2012.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/62067/7/01_Hu_Role_of_the_Bering_Strait_on_2012.pdf.jpg |
op_rights |
Author/s retain copyright |
op_doi |
https://doi.org/10.1073/pnas.1116014109 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
109 |
container_issue |
17 |
container_start_page |
6417 |
op_container_end_page |
6422 |
_version_ |
1788058835970162688 |