Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team
Oceanic overflows are bottom-trapped density currents originating in semienclosed basins, such as the Nordic seas, or on continental shelves, such as the Antarctic shelf. Overflows are the source of most of the abyssal waters, and therefore play an important role in the large-scale ocean circulation...
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ftncar:oai:drupal-site.org:articles_15358 2023-09-05T13:15:19+02:00 Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team Legg, Sonya (author) Briegleb, Bruce (author) Chang, Yeon (author) Chassignet, Eric (author) Danabasoglu, Gokhan (author) Ezer, Tal (author) Gordon, Arnold (author) Griffies, Stephen (author) Hallberg, Robert (author) Jackson, Laura (author) Large, William (author) Özgökmen, Tamay (author) Peters, Hartmut (author) Price, Jim (author) Riemenschneider, Ulrike (author) Wu, Wanli (author) Xu, Xiaobiao (author) Yang, Jiayan (author) 2009-05-01 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-386 https://doi.org/10.1175/2008BAMS2667.1 en eng American Meteorological Society Bulletin of the American Meteorological Society http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-386 doi:10.1175/2008BAMS2667.1 ark:/85065/d74x58v3 Copyright 2009 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. Text article 2009 ftncar https://doi.org/10.1175/2008BAMS2667.1 2023-08-14T18:42:00Z Oceanic overflows are bottom-trapped density currents originating in semienclosed basins, such as the Nordic seas, or on continental shelves, such as the Antarctic shelf. Overflows are the source of most of the abyssal waters, and therefore play an important role in the large-scale ocean circulation, forming a component of the sinking branch of the thermohaline circulation. As they descend the continental slope, overflows mix vigorously with the surrounding oceanic waters, changing their density and transport significantly. These mixing processes occur on spatial scales well below the resolution of ocean climate models, with the result that deep waters and deep western boundary currents are simulated poorly. The Gravity Current Entrainment Climate Process Team was established by the U.S. Climate Variability and Prediction (CLIVAR) Program to accelerate the development and implementation of improved representations of overflows within large-scale climate models, bringing together climate model developers with those conducting observational, numerical, and laboratory process studies of overflows. Here, the organization of the Climate Process Team is described, and a few of the successes and lessons learned during this collaboration are highlighted, with some emphasis on the well-observed Mediterranean overflow. The Climate Process Team has developed several different overflow parameterizations, which are examined in a hierarchy of ocean models, from comparatively well-resolved regional models to the largest-scale global climate models. Article in Journal/Newspaper Antarc* Antarctic Nordic Seas OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Antarctic The Antarctic Bulletin of the American Meteorological Society 90 5 657 670 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
Oceanic overflows are bottom-trapped density currents originating in semienclosed basins, such as the Nordic seas, or on continental shelves, such as the Antarctic shelf. Overflows are the source of most of the abyssal waters, and therefore play an important role in the large-scale ocean circulation, forming a component of the sinking branch of the thermohaline circulation. As they descend the continental slope, overflows mix vigorously with the surrounding oceanic waters, changing their density and transport significantly. These mixing processes occur on spatial scales well below the resolution of ocean climate models, with the result that deep waters and deep western boundary currents are simulated poorly. The Gravity Current Entrainment Climate Process Team was established by the U.S. Climate Variability and Prediction (CLIVAR) Program to accelerate the development and implementation of improved representations of overflows within large-scale climate models, bringing together climate model developers with those conducting observational, numerical, and laboratory process studies of overflows. Here, the organization of the Climate Process Team is described, and a few of the successes and lessons learned during this collaboration are highlighted, with some emphasis on the well-observed Mediterranean overflow. The Climate Process Team has developed several different overflow parameterizations, which are examined in a hierarchy of ocean models, from comparatively well-resolved regional models to the largest-scale global climate models. |
author2 |
Legg, Sonya (author) Briegleb, Bruce (author) Chang, Yeon (author) Chassignet, Eric (author) Danabasoglu, Gokhan (author) Ezer, Tal (author) Gordon, Arnold (author) Griffies, Stephen (author) Hallberg, Robert (author) Jackson, Laura (author) Large, William (author) Özgökmen, Tamay (author) Peters, Hartmut (author) Price, Jim (author) Riemenschneider, Ulrike (author) Wu, Wanli (author) Xu, Xiaobiao (author) Yang, Jiayan (author) |
format |
Article in Journal/Newspaper |
title |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
spellingShingle |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
title_short |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
title_full |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
title_fullStr |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
title_full_unstemmed |
Improving oceanic overflow representation in climate models: The Gravity Current Entrainment Climate Process Team |
title_sort |
improving oceanic overflow representation in climate models: the gravity current entrainment climate process team |
publisher |
American Meteorological Society |
publishDate |
2009 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-386 https://doi.org/10.1175/2008BAMS2667.1 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Nordic Seas |
genre_facet |
Antarc* Antarctic Nordic Seas |
op_relation |
Bulletin of the American Meteorological Society http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-002-386 doi:10.1175/2008BAMS2667.1 ark:/85065/d74x58v3 |
op_rights |
Copyright 2009 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or amspubs@ametsoc.org. Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work. |
op_doi |
https://doi.org/10.1175/2008BAMS2667.1 |
container_title |
Bulletin of the American Meteorological Society |
container_volume |
90 |
container_issue |
5 |
container_start_page |
657 |
op_container_end_page |
670 |
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1776197127228096512 |