Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean
Current ocean models have relatively large errors and biases in the Southern Ocean. The aim of this study is to provide a reanalysis from 1985 to 2006 assimilating sea surface temperature, sea ice concentration and sea ice drift. In the following it is also shown how surface winds in the Southern Oc...
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2015
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Online Access: | http://nora.nerc.ac.uk/id/eprint/511406/ https://nora.nerc.ac.uk/id/eprint/511406/1/Assimilation%20of%20sea%20surface%20temperature%20AAM.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 |
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ftnerc:oai:nora.nerc.ac.uk:511406 2023-05-15T13:49:32+02:00 Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean Barth, Alexander Canter, Martin Schaeybroeck, Bert Van Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera-Azcárate, Aida Beckers, Jean-Marie 2015-09 text http://nora.nerc.ac.uk/id/eprint/511406/ https://nora.nerc.ac.uk/id/eprint/511406/1/Assimilation%20of%20sea%20surface%20temperature%20AAM.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 en eng https://nora.nerc.ac.uk/id/eprint/511406/1/Assimilation%20of%20sea%20surface%20temperature%20AAM.pdf Barth, Alexander; Canter, Martin; Schaeybroeck, Bert Van; Vannitsem, Stéphane; Massonnet, François; Zunz, Violette; Mathiot, Pierre; Alvera-Azcárate, Aida; Beckers, Jean-Marie. 2015 Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean. Ocean Modelling, 93. 22-39. https://doi.org/10.1016/j.ocemod.2015.07.011 <https://doi.org/10.1016/j.ocemod.2015.07.011> Publication - Article PeerReviewed 2015 ftnerc https://doi.org/10.1016/j.ocemod.2015.07.011 2023-02-04T19:41:57Z Current ocean models have relatively large errors and biases in the Southern Ocean. The aim of this study is to provide a reanalysis from 1985 to 2006 assimilating sea surface temperature, sea ice concentration and sea ice drift. In the following it is also shown how surface winds in the Southern Ocean can be improved using sea ice drift estimated from infrared radiometers. Such satellite observations are available since the late seventies and have the potential to improve the wind forcing before more direct measurements of winds over the ocean are available using scatterometry in the late nineties. The model results are compared to the assimilated data and to independent measurements (the World Ocean Database 2009 and the mean dynamic topography based on observations). The overall improvement of the assimilation is quantified, in particular the impact of the assimilation on the representation of the polar front is discussed. Finally a method to identify model errors in the Antarctic sea ice area is proposed based on Model Output Statistics techniques using a series of potential predictors. This approach provides new directions for model improvements. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic Ocean Modelling 93 22 39 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Current ocean models have relatively large errors and biases in the Southern Ocean. The aim of this study is to provide a reanalysis from 1985 to 2006 assimilating sea surface temperature, sea ice concentration and sea ice drift. In the following it is also shown how surface winds in the Southern Ocean can be improved using sea ice drift estimated from infrared radiometers. Such satellite observations are available since the late seventies and have the potential to improve the wind forcing before more direct measurements of winds over the ocean are available using scatterometry in the late nineties. The model results are compared to the assimilated data and to independent measurements (the World Ocean Database 2009 and the mean dynamic topography based on observations). The overall improvement of the assimilation is quantified, in particular the impact of the assimilation on the representation of the polar front is discussed. Finally a method to identify model errors in the Antarctic sea ice area is proposed based on Model Output Statistics techniques using a series of potential predictors. This approach provides new directions for model improvements. |
format |
Article in Journal/Newspaper |
author |
Barth, Alexander Canter, Martin Schaeybroeck, Bert Van Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera-Azcárate, Aida Beckers, Jean-Marie |
spellingShingle |
Barth, Alexander Canter, Martin Schaeybroeck, Bert Van Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera-Azcárate, Aida Beckers, Jean-Marie Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
author_facet |
Barth, Alexander Canter, Martin Schaeybroeck, Bert Van Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera-Azcárate, Aida Beckers, Jean-Marie |
author_sort |
Barth, Alexander |
title |
Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
title_short |
Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
title_full |
Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
title_fullStr |
Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
title_full_unstemmed |
Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
title_sort |
assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the southern ocean |
publishDate |
2015 |
url |
http://nora.nerc.ac.uk/id/eprint/511406/ https://nora.nerc.ac.uk/id/eprint/511406/1/Assimilation%20of%20sea%20surface%20temperature%20AAM.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/511406/1/Assimilation%20of%20sea%20surface%20temperature%20AAM.pdf Barth, Alexander; Canter, Martin; Schaeybroeck, Bert Van; Vannitsem, Stéphane; Massonnet, François; Zunz, Violette; Mathiot, Pierre; Alvera-Azcárate, Aida; Beckers, Jean-Marie. 2015 Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean. Ocean Modelling, 93. 22-39. https://doi.org/10.1016/j.ocemod.2015.07.011 <https://doi.org/10.1016/j.ocemod.2015.07.011> |
op_doi |
https://doi.org/10.1016/j.ocemod.2015.07.011 |
container_title |
Ocean Modelling |
container_volume |
93 |
container_start_page |
22 |
op_container_end_page |
39 |
_version_ |
1766251505090822144 |