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:digitalcollections.anu.edu.au:1885/62067 2023-05-15T15:02:52+02:00 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 Lambeck, Kurt Wu, Bingyi 2015-12-10T23:03:12Z http://hdl.handle.net/1885/62067 unknown National Academy of Sciences (USA) 0027-8424 http://hdl.handle.net/1885/62067 PNAS - Proceedings of the National Academy of Sciences of the United States of America Journal article 2015 ftanucanberra 2015-12-28T23:31:48Z 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 Australian National University: ANU Digital Collections Arctic Bering Strait Pacific |
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Open Polar |
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Australian National University: ANU Digital Collections |
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ftanucanberra |
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unknown |
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 Lambeck, Kurt Wu, Bingyi |
spellingShingle |
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 Lambeck, Kurt Wu, Bingyi Role of the Bering Strait on the hysteresis of the ocean conveyor belt circulation and glacial climate stability |
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 Lambeck, Kurt Wu, Bingyi |
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) |
publishDate |
2015 |
url |
http://hdl.handle.net/1885/62067 |
geographic |
Arctic Bering Strait Pacific |
geographic_facet |
Arctic Bering Strait Pacific |
genre |
Arctic Bering Strait |
genre_facet |
Arctic Bering Strait |
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 |
_version_ |
1766334786955116544 |