The low resolution CCSM3
The low-resolution fully coupled configuration of the Community Climate System Model version 3 (CCSM3) is described and evaluated. In this most economical configuration, an ocean at nominal 3° resolution is coupled to an atmosphere model at T31 resolution. There are climate biases associated with th...
Published in: | Journal of Climate |
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Language: | English |
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Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-019-321 https://doi.org/10.1175/JCLI3744.1 |
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ftncar:oai:drupal-site.org:articles_10219 2023-09-05T13:21:30+02:00 The low resolution CCSM3 Yeager, Stephen (author) Shields, Christine (author) Large, William (author) Hack, James (author) 2006-06 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-019-321 https://doi.org/10.1175/JCLI3744.1 en eng Journal of Climate http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-019-321 doi:10.1175/JCLI3744.1 ark:/85065/d70g3kp3 Copyright 2006 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 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108, as revised by P.L. 94-553) does not require the AMS's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statement, requires written permission or a license form the AMS. Additional details are provided in the AMS Copyright Policy, available on the AMS Web site located at (http://www.ametsoc.org/AMS) or from the AMS at 617-227-2425 or copyright@ametsoc.org. Text article 2006 ftncar https://doi.org/10.1175/JCLI3744.1 2023-08-14T18:40:00Z The low-resolution fully coupled configuration of the Community Climate System Model version 3 (CCSM3) is described and evaluated. In this most economical configuration, an ocean at nominal 3° resolution is coupled to an atmosphere model at T31 resolution. There are climate biases associated with the relatively coarse grids, yet the coupled solution remains comparable to higher-resolution CCSM3 results. There are marked improvements in the new solution compared to the low-resolution configuration of CCSM2. In particular, the CCSM3 simulation maintains a robust meridional overturning circulation in the ocean, and it generates more realistic El Niño variability. The improved ocean solution was achieved with no increase in computational cost by redistributing deep ocean and midlatitude resolution into the upper ocean and the key water formation regions of the North Atlantic, respectively. Given its significantly lower resource demands compared to higher resolutions, this configuration shows promise for studies of paleoclimate and other applications requiring long, equilibrated solutions. Article in Journal/Newspaper North Atlantic OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Journal of Climate 19 11 2545 2566 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
language |
English |
description |
The low-resolution fully coupled configuration of the Community Climate System Model version 3 (CCSM3) is described and evaluated. In this most economical configuration, an ocean at nominal 3° resolution is coupled to an atmosphere model at T31 resolution. There are climate biases associated with the relatively coarse grids, yet the coupled solution remains comparable to higher-resolution CCSM3 results. There are marked improvements in the new solution compared to the low-resolution configuration of CCSM2. In particular, the CCSM3 simulation maintains a robust meridional overturning circulation in the ocean, and it generates more realistic El Niño variability. The improved ocean solution was achieved with no increase in computational cost by redistributing deep ocean and midlatitude resolution into the upper ocean and the key water formation regions of the North Atlantic, respectively. Given its significantly lower resource demands compared to higher resolutions, this configuration shows promise for studies of paleoclimate and other applications requiring long, equilibrated solutions. |
author2 |
Yeager, Stephen (author) Shields, Christine (author) Large, William (author) Hack, James (author) |
format |
Article in Journal/Newspaper |
title |
The low resolution CCSM3 |
spellingShingle |
The low resolution CCSM3 |
title_short |
The low resolution CCSM3 |
title_full |
The low resolution CCSM3 |
title_fullStr |
The low resolution CCSM3 |
title_full_unstemmed |
The low resolution CCSM3 |
title_sort |
low resolution ccsm3 |
publishDate |
2006 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-019-321 https://doi.org/10.1175/JCLI3744.1 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Journal of Climate http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-019-321 doi:10.1175/JCLI3744.1 ark:/85065/d70g3kp3 |
op_rights |
Copyright 2006 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 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108, as revised by P.L. 94-553) does not require the AMS's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statement, requires written permission or a license form the AMS. Additional details are provided in the AMS Copyright Policy, available on the AMS Web site located at (http://www.ametsoc.org/AMS) or from the AMS at 617-227-2425 or copyright@ametsoc.org. |
op_doi |
https://doi.org/10.1175/JCLI3744.1 |
container_title |
Journal of Climate |
container_volume |
19 |
container_issue |
11 |
container_start_page |
2545 |
op_container_end_page |
2566 |
_version_ |
1776202109263282176 |