Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models
Observations show that the Southern Hemisphere zonal wind stress maximum has increased significantly over the past 30 years. Eddy-resolving ocean models show that the resulting increase in the Southern Ocean mean flow meridional overturning circulation (MOC) is partially compensated by an increase i...
Published in: | Annual Review of Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Annual Reviews, Inc.
2016
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-527 https://doi.org/10.1146/annurev-marine-122414-033929 |
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ftncar:oai:drupal-site.org:articles_17902 2023-07-30T04:05:22+02:00 Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models Gent, Peter (author) 2016-01-01 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-527 https://doi.org/10.1146/annurev-marine-122414-033929 en eng Annual Reviews, Inc. Annual Review of Marine Science ark:/85065/d7v40wp0 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-527 doi:10.1146/annurev-marine-122414-033929 Copyright 2016 Annual Reviews. Text article 2016 ftncar https://doi.org/10.1146/annurev-marine-122414-033929 2023-07-17T18:14:30Z Observations show that the Southern Hemisphere zonal wind stress maximum has increased significantly over the past 30 years. Eddy-resolving ocean models show that the resulting increase in the Southern Ocean mean flow meridional overturning circulation (MOC) is partially compensated by an increase in the eddy MOC. This effect can be reproduced in the non-eddy-resolving ocean component of a climate model, providing the eddy parameterization coefficient is variable and not a constant. If the coefficient is a constant, then the Southern Ocean mean MOC change is balanced by an unrealistically large change in the Atlantic Ocean MOC. Southern Ocean eddy compensation means that Southern Hemisphere winds cannot be the dominant mechanism driving midlatitude North Atlantic MOC variability. Article in Journal/Newspaper North Atlantic Southern Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Southern Ocean Annual Review of Marine Science 8 1 79 94 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Observations show that the Southern Hemisphere zonal wind stress maximum has increased significantly over the past 30 years. Eddy-resolving ocean models show that the resulting increase in the Southern Ocean mean flow meridional overturning circulation (MOC) is partially compensated by an increase in the eddy MOC. This effect can be reproduced in the non-eddy-resolving ocean component of a climate model, providing the eddy parameterization coefficient is variable and not a constant. If the coefficient is a constant, then the Southern Ocean mean MOC change is balanced by an unrealistically large change in the Atlantic Ocean MOC. Southern Ocean eddy compensation means that Southern Hemisphere winds cannot be the dominant mechanism driving midlatitude North Atlantic MOC variability. |
author2 |
Gent, Peter (author) |
format |
Article in Journal/Newspaper |
title |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
spellingShingle |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
title_short |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
title_full |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
title_fullStr |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
title_full_unstemmed |
Effects of Southern Hemisphere wind changes on the meridional overturning circulation in ocean models |
title_sort |
effects of southern hemisphere wind changes on the meridional overturning circulation in ocean models |
publisher |
Annual Reviews, Inc. |
publishDate |
2016 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-527 https://doi.org/10.1146/annurev-marine-122414-033929 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
North Atlantic Southern Ocean |
genre_facet |
North Atlantic Southern Ocean |
op_relation |
Annual Review of Marine Science ark:/85065/d7v40wp0 http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-527 doi:10.1146/annurev-marine-122414-033929 |
op_rights |
Copyright 2016 Annual Reviews. |
op_doi |
https://doi.org/10.1146/annurev-marine-122414-033929 |
container_title |
Annual Review of Marine Science |
container_volume |
8 |
container_issue |
1 |
container_start_page |
79 |
op_container_end_page |
94 |
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1772817225253650432 |