Role of the Bering Strait in the thermohaline circulation and abrupt climate change
Here we investigate the role of the Bering Strait (BS) in the thermohaline circulation (THC) response to added freshwater forcing (hosing) in the subpolar North Atlantic, through analyzing simulations of a fully coupled climate model with an open and closed BS. Results show that the THC declines sim...
Published in: | Geophysical Research Letters |
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Language: | English |
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American Geophysical Union
2007
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-943 https://doi.org/10.1029/2006GL028906 |
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ftncar:oai:drupal-site.org:articles_6646 2023-10-01T03:53:41+02:00 Role of the Bering Strait in the thermohaline circulation and abrupt climate change Hu, Aixue (author) Meehl, Gerald (author) Han, Weiqing (author) 2007-03-03 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-943 https://doi.org/10.1029/2006GL028906 en eng American Geophysical Union Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-943 doi:10.1029/2006GL028906 ark:/85065/d7p84c3h Copyright 2007 American Geophysical Union. Text article 2007 ftncar https://doi.org/10.1029/2006GL028906 2023-09-04T18:22:24Z Here we investigate the role of the Bering Strait (BS) in the thermohaline circulation (THC) response to added freshwater forcing (hosing) in the subpolar North Atlantic, through analyzing simulations of a fully coupled climate model with an open and closed BS. Results show that the THC declines similarly with an open and closed BS during hosing. However, the recovery of the THC is delayed by about a century in the closed BS simulation than in the open BS one after the hosing is off. The closed BS prevents the added freshwater being transported from the Atlantic into the Pacific via the Arctic as in the open BS case. Further, the freshwater supply is elevated significantly after the hosing by exporting the freshwater stored in the Arctic during hosing, as sea ice, back to the North Atlantic. This stabilizes the surface stratification there and suppresses the recovery of the deep convection. Article in Journal/Newspaper Arctic Bering Strait Climate change North Atlantic Sea ice OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Arctic Bering Strait Pacific Geophysical Research Letters 34 5 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Here we investigate the role of the Bering Strait (BS) in the thermohaline circulation (THC) response to added freshwater forcing (hosing) in the subpolar North Atlantic, through analyzing simulations of a fully coupled climate model with an open and closed BS. Results show that the THC declines similarly with an open and closed BS during hosing. However, the recovery of the THC is delayed by about a century in the closed BS simulation than in the open BS one after the hosing is off. The closed BS prevents the added freshwater being transported from the Atlantic into the Pacific via the Arctic as in the open BS case. Further, the freshwater supply is elevated significantly after the hosing by exporting the freshwater stored in the Arctic during hosing, as sea ice, back to the North Atlantic. This stabilizes the surface stratification there and suppresses the recovery of the deep convection. |
author2 |
Hu, Aixue (author) Meehl, Gerald (author) Han, Weiqing (author) |
format |
Article in Journal/Newspaper |
title |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
spellingShingle |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
title_short |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
title_full |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
title_fullStr |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
title_full_unstemmed |
Role of the Bering Strait in the thermohaline circulation and abrupt climate change |
title_sort |
role of the bering strait in the thermohaline circulation and abrupt climate change |
publisher |
American Geophysical Union |
publishDate |
2007 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-943 https://doi.org/10.1029/2006GL028906 |
geographic |
Arctic Bering Strait Pacific |
geographic_facet |
Arctic Bering Strait Pacific |
genre |
Arctic Bering Strait Climate change North Atlantic Sea ice |
genre_facet |
Arctic Bering Strait Climate change North Atlantic Sea ice |
op_relation |
Geophysical Research Letters http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-003-943 doi:10.1029/2006GL028906 ark:/85065/d7p84c3h |
op_rights |
Copyright 2007 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2006GL028906 |
container_title |
Geophysical Research Letters |
container_volume |
34 |
container_issue |
5 |
_version_ |
1778520471891869696 |