Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean
peer reviewed 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 t...
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2015
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Online Access: | https://orbi.uliege.be/handle/2268/190683 https://orbi.uliege.be/bitstream/2268/190683/1/orca_assim.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 |
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ftorbi:oai:orbi.ulg.ac.be:2268/190683 2024-04-21T07:52:29+00:00 Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean Barth, Alexander Canter, Martin Van Schaeybroeck, Bert Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera Azcarate, Aïda Beckers, Jean-Marie GeoHydrodynamics and Environment Research 2015-09 https://orbi.uliege.be/handle/2268/190683 https://orbi.uliege.be/bitstream/2268/190683/1/orca_assim.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 en eng Elsevier Science info:eu-repo/grantAgreement/EC/FP7/283580 urn:issn:1463-5003 urn:issn:1463-5011 https://orbi.uliege.be/handle/2268/190683 info:hdl:2268/190683 https://orbi.uliege.be/bitstream/2268/190683/1/orca_assim.pdf doi:10.1016/j.ocemod.2015.07.011 scopus-id:2-s2.0-84939125425 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Ocean Modelling, 93, 22-39 (2015-09) Ensemble Kalman filter Sea ice drift Data assimilation Model output statistics Southern Ocean Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2015 ftorbi https://doi.org/10.1016/j.ocemod.2015.07.011 2024-03-27T14:52:59Z peer reviewed 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. PREDANTAR, Sangoma Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean University of Liège: ORBi (Open Repository and Bibliography) Ocean Modelling 93 22 39 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Ensemble Kalman filter Sea ice drift Data assimilation Model output statistics Southern Ocean Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Ensemble Kalman filter Sea ice drift Data assimilation Model output statistics Southern Ocean Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Barth, Alexander Canter, Martin Van Schaeybroeck, Bert Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera Azcarate, Aïda Beckers, Jean-Marie Assimilation of sea surface temperature, sea ice concentration and sea ice drift in a model of the Southern Ocean |
topic_facet |
Ensemble Kalman filter Sea ice drift Data assimilation Model output statistics Southern Ocean Physical chemical mathematical & earth Sciences Earth sciences & physical geography Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed 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. PREDANTAR, Sangoma |
author2 |
GeoHydrodynamics and Environment Research |
format |
Article in Journal/Newspaper |
author |
Barth, Alexander Canter, Martin Van Schaeybroeck, Bert Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera Azcarate, Aïda Beckers, Jean-Marie |
author_facet |
Barth, Alexander Canter, Martin Van Schaeybroeck, Bert Vannitsem, Stéphane Massonnet, François Zunz, Violette Mathiot, Pierre Alvera Azcarate, Aïda 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 |
publisher |
Elsevier Science |
publishDate |
2015 |
url |
https://orbi.uliege.be/handle/2268/190683 https://orbi.uliege.be/bitstream/2268/190683/1/orca_assim.pdf https://doi.org/10.1016/j.ocemod.2015.07.011 |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_source |
Ocean Modelling, 93, 22-39 (2015-09) |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/283580 urn:issn:1463-5003 urn:issn:1463-5011 https://orbi.uliege.be/handle/2268/190683 info:hdl:2268/190683 https://orbi.uliege.be/bitstream/2268/190683/1/orca_assim.pdf doi:10.1016/j.ocemod.2015.07.011 scopus-id:2-s2.0-84939125425 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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_ |
1796935716822843392 |