The Pacific-Atlantic seesaw and the Bering Strait
Paleo proxy data and previous modeling studies both indicate that the massive discharge of icebergs into the North Atlantic may have led to a (nearly) collapsed Atlantic meridional overturning circulation (AMOC), resulting in a seesaw-like climate change between the North Pacific and North Atlantic,...
Published in: | Geophysical Research Letters |
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Language: | English |
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American Geophysical Union
2012
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-010-455 https://doi.org/10.1029/2011GL050567 |
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ftncar:oai:drupal-site.org:articles_11746 2023-09-05T13:18:32+02:00 The Pacific-Atlantic seesaw and the Bering Strait Hu, Aixue (author) Meehl, Gerald (author) Han, Weiqing (author) Abe-Ouchi, Ayako (author) Morrill, Carrie (author) Okazaki, Yusuke (author) Chikamoto, Megume (author) 2012-02-03 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-010-455 https://doi.org/10.1029/2011GL050567 en eng American Geophysical Union Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-010-455 doi:10.1029/2011GL050567 ark:/85065/d7ft8mpw Copyright 2012 American Geophysical Union. Paleoceanography Thermohaline circulation Abrupt/rapid climate change Text article 2012 ftncar https://doi.org/10.1029/2011GL050567 2023-08-14T18:38:18Z Paleo proxy data and previous modeling studies both indicate that the massive discharge of icebergs into the North Atlantic may have led to a (nearly) collapsed Atlantic meridional overturning circulation (AMOC), resulting in a seesaw-like climate change between the North Pacific and North Atlantic, with a warming in the former and a cooling in the latter. Here by using a fully coupled climate model, we show that this Pacific-Atlantic seesaw associated with changes of the AMOC can only occur when the Bering Strait is closed. As this strait is closed, the oceanic communication between the North Pacific and Atlantic is cut off. When AMOC collapses, the North Atlantic becomes cooler, but the North Pacific becomes warmer due to the buildup of the Pacific meridional overturning circulation which transports more warm and salty subtropical water into the North Pacific, leading to seesaw-like climate changes in the two ocean basins. Article in Journal/Newspaper Bering Strait North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Bering Strait Pacific Geophysical Research Letters 39 3 n/a n/a |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
topic |
Paleoceanography Thermohaline circulation Abrupt/rapid climate change |
spellingShingle |
Paleoceanography Thermohaline circulation Abrupt/rapid climate change The Pacific-Atlantic seesaw and the Bering Strait |
topic_facet |
Paleoceanography Thermohaline circulation Abrupt/rapid climate change |
description |
Paleo proxy data and previous modeling studies both indicate that the massive discharge of icebergs into the North Atlantic may have led to a (nearly) collapsed Atlantic meridional overturning circulation (AMOC), resulting in a seesaw-like climate change between the North Pacific and North Atlantic, with a warming in the former and a cooling in the latter. Here by using a fully coupled climate model, we show that this Pacific-Atlantic seesaw associated with changes of the AMOC can only occur when the Bering Strait is closed. As this strait is closed, the oceanic communication between the North Pacific and Atlantic is cut off. When AMOC collapses, the North Atlantic becomes cooler, but the North Pacific becomes warmer due to the buildup of the Pacific meridional overturning circulation which transports more warm and salty subtropical water into the North Pacific, leading to seesaw-like climate changes in the two ocean basins. |
author2 |
Hu, Aixue (author) Meehl, Gerald (author) Han, Weiqing (author) Abe-Ouchi, Ayako (author) Morrill, Carrie (author) Okazaki, Yusuke (author) Chikamoto, Megume (author) |
format |
Article in Journal/Newspaper |
title |
The Pacific-Atlantic seesaw and the Bering Strait |
title_short |
The Pacific-Atlantic seesaw and the Bering Strait |
title_full |
The Pacific-Atlantic seesaw and the Bering Strait |
title_fullStr |
The Pacific-Atlantic seesaw and the Bering Strait |
title_full_unstemmed |
The Pacific-Atlantic seesaw and the Bering Strait |
title_sort |
pacific-atlantic seesaw and the bering strait |
publisher |
American Geophysical Union |
publishDate |
2012 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-010-455 https://doi.org/10.1029/2011GL050567 |
geographic |
Bering Strait Pacific |
geographic_facet |
Bering Strait Pacific |
genre |
Bering Strait North Atlantic |
genre_facet |
Bering Strait North Atlantic |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-010-455 doi:10.1029/2011GL050567 ark:/85065/d7ft8mpw |
op_rights |
Copyright 2012 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2011GL050567 |
container_title |
Geophysical Research Letters |
container_volume |
39 |
container_issue |
3 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1776199475012829184 |