ORCA-LIM global coupled sea ice–ocean model
The dynamic–thermodynamic Louvain-la-Neuve sea ice model (LIM) has been coupled to the OPA primitive equation ocean general circulation model. In the ORCA2-LIM configuration, the model is run on a global domain with 2mean resolution. Model runs are forced with a combined dataset consisting of daily...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.470.5046 2023-05-15T13:37:07+02:00 ORCA-LIM global coupled sea ice–ocean model Ralph Timmermann A Hugues Goosse A Gurvan Madec B Thierry Fichefet A Christian Ethe B The Pennsylvania State University CiteSeerX Archives 2004 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.5046 http://epic.awi.de/10070/1/Tim2004b.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.5046 http://epic.awi.de/10070/1/Tim2004b.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://epic.awi.de/10070/1/Tim2004b.pdf text 2004 ftciteseerx 2016-01-08T07:15:25Z The dynamic–thermodynamic Louvain-la-Neuve sea ice model (LIM) has been coupled to the OPA primitive equation ocean general circulation model. In the ORCA2-LIM configuration, the model is run on a global domain with 2mean resolution. Model runs are forced with a combined dataset consisting of daily NCEP/NCAR reanalysis data and various climatologies. The models performance is evaluated with re-spect to the representation of sea ice and the high latitude oceans. The annual cycle of sea ice growth and decay is realistically captured in both hemispheres, with ice extent, thickness and drift in close agreement with observations. The location of the main sites of deep convection (Labrador and Greenland Seas; continental shelves of marginal seas of the Southern Ocean) is well reproduced. Model deficiencies include a slight overestimation of summer ice extent in the Arctic, and a significant underestimation of multi-year ice in the Weddell Sea. Furthermore, the width of the Arctic Ocean Boundary Current and the Antarctic Circumpolar Current is overestimated. Sensitivity studies indicate that the use of the combined forcing dataset is crucial to achieve a reasonable summer sea ice coverage and that the direct use of the NCEP/ NCAR wind stress data leads to an overestimation of sea ice drift velocities. A restoring of sea surface salinity is necessary to avoid spurious open ocean convection in the Weddell Sea. Text Antarc* Antarctic Arctic Arctic Ocean Greenland Orca Sea ice Southern Ocean Weddell Sea Unknown Arctic Antarctic Southern Ocean The Antarctic Arctic Ocean Weddell Sea Greenland Weddell |
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Open Polar |
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ftciteseerx |
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English |
description |
The dynamic–thermodynamic Louvain-la-Neuve sea ice model (LIM) has been coupled to the OPA primitive equation ocean general circulation model. In the ORCA2-LIM configuration, the model is run on a global domain with 2mean resolution. Model runs are forced with a combined dataset consisting of daily NCEP/NCAR reanalysis data and various climatologies. The models performance is evaluated with re-spect to the representation of sea ice and the high latitude oceans. The annual cycle of sea ice growth and decay is realistically captured in both hemispheres, with ice extent, thickness and drift in close agreement with observations. The location of the main sites of deep convection (Labrador and Greenland Seas; continental shelves of marginal seas of the Southern Ocean) is well reproduced. Model deficiencies include a slight overestimation of summer ice extent in the Arctic, and a significant underestimation of multi-year ice in the Weddell Sea. Furthermore, the width of the Arctic Ocean Boundary Current and the Antarctic Circumpolar Current is overestimated. Sensitivity studies indicate that the use of the combined forcing dataset is crucial to achieve a reasonable summer sea ice coverage and that the direct use of the NCEP/ NCAR wind stress data leads to an overestimation of sea ice drift velocities. A restoring of sea surface salinity is necessary to avoid spurious open ocean convection in the Weddell Sea. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Ralph Timmermann A Hugues Goosse A Gurvan Madec B Thierry Fichefet A Christian Ethe B |
spellingShingle |
Ralph Timmermann A Hugues Goosse A Gurvan Madec B Thierry Fichefet A Christian Ethe B ORCA-LIM global coupled sea ice–ocean model |
author_facet |
Ralph Timmermann A Hugues Goosse A Gurvan Madec B Thierry Fichefet A Christian Ethe B |
author_sort |
Ralph Timmermann A |
title |
ORCA-LIM global coupled sea ice–ocean model |
title_short |
ORCA-LIM global coupled sea ice–ocean model |
title_full |
ORCA-LIM global coupled sea ice–ocean model |
title_fullStr |
ORCA-LIM global coupled sea ice–ocean model |
title_full_unstemmed |
ORCA-LIM global coupled sea ice–ocean model |
title_sort |
orca-lim global coupled sea ice–ocean model |
publishDate |
2004 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.5046 http://epic.awi.de/10070/1/Tim2004b.pdf |
geographic |
Arctic Antarctic Southern Ocean The Antarctic Arctic Ocean Weddell Sea Greenland Weddell |
geographic_facet |
Arctic Antarctic Southern Ocean The Antarctic Arctic Ocean Weddell Sea Greenland Weddell |
genre |
Antarc* Antarctic Arctic Arctic Ocean Greenland Orca Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Greenland Orca Sea ice Southern Ocean Weddell Sea |
op_source |
http://epic.awi.de/10070/1/Tim2004b.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.470.5046 http://epic.awi.de/10070/1/Tim2004b.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766088253103931392 |