DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas

More than 29 years of altimeter data have been recently reprocessed by the multi-satellite Data Unification and Altimeter Combination System (DUACS) and made available under the name of DT2021 through the Copernicus Marine Service (CMEMS) and the Copernicus Climate Change Service (C3S). New standard...

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Authors: Sánchez-Román, Antonio, Pujol, Isabelle, Faugère, Yannice, Pascual, Ananda
Format: article
Status:Published version
Publication Date:2023
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/337994
Online Access:http://hdl.handle.net/10261/337994
https://api.elsevier.com/content/abstract/scopus_id/85163927655
Access Level:Open access
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spelling DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seasSánchez-Román, AntonioPujol, IsabelleFaugère, YannicePascual, AnandaMore than 29 years of altimeter data have been recently reprocessed by the multi-satellite Data Unification and Altimeter Combination System (DUACS) and made available under the name of DT2021 through the Copernicus Marine Service (CMEMS) and the Copernicus Climate Change Service (C3S). New standards have been applied and various geophysical correction parameters have been updated compared to the previous release in order to improve the product quality. This paper describes the assessment of this new release through the comparison of both the all satellites and the two satellites product with external in situ tide gauge measurements in the coastal areas of the European seas for a time period from 1 January 1993 to 31 May 2020. The aim is to quantify the improvements on the previous DT2018 processing version for the retrieval of sea level in the coastal zone. The results confirmed that the CMEMS product in the new DT2021 processing version better solves the signal in the coastal band. The all satellites dataset showed a reduction of 3ĝ€¯% in errors when compared with tide gauges and of 5ĝ€¯% in the variance of the differences between the datasets compared to DT2018 reprocessing. Moreover, the all satellites dataset provided more accurate sea level measurements when making a comparison with tide gauges with respect to the climatic two satellites dataset due to the better performance of the former for the assessment of higher than climatic frequency signals. By contrast, the two satellite dataset is the most suitable product for the assessment of long-Term sea level sea surface height (SSH) trends in the coastal zone due to its larger stability to the detriment of the all satellites dataset.This work represents a contribution to the CSIC Interdisciplinary Thematic Platform (PTI) Teledetección (PTI-TELEDETECT), and it was carried out within the framework of the activities of the Spanish Government through the “Maria de Maeztu Centre of Excellence” accreditation to IMEDEA (CSIC-UIB) (CEX2021-001198).With funding from the Spanish government through the ‘María de Maeztu Unit of Excelence’ accreditation (CEX2021-001198)Peer reviewedEuropean Geosciences UnionCopernicus PublicationsConsejo Superior de Investigaciones Científicas (España)Ministerio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Sánchez-Román, Antonio [0000-0003-2432-7051]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202320232023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/337994https://api.elsevier.com/content/abstract/scopus_id/85163927655reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001198The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.5194/os-19-793-2023https://doi.org/10.5194/os-19-793-2023Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3379942026-05-22T06:33:51Z
dc.title.none.fl_str_mv DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
title DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
spellingShingle DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
Sánchez-Román, Antonio
title_short DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
title_full DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
title_fullStr DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
title_full_unstemmed DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
title_sort DUACS DT2021 reprocessed altimetry improves sea level retrieval in the coastal band of the European seas
dc.creator.none.fl_str_mv Sánchez-Román, Antonio
Pujol, Isabelle
Faugère, Yannice
Pascual, Ananda
author Sánchez-Román, Antonio
author_facet Sánchez-Román, Antonio
Pujol, Isabelle
Faugère, Yannice
Pascual, Ananda
author_role author
author2 Pujol, Isabelle
Faugère, Yannice
Pascual, Ananda
author2_role author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas (España)
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Sánchez-Román, Antonio [0000-0003-2432-7051]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description More than 29 years of altimeter data have been recently reprocessed by the multi-satellite Data Unification and Altimeter Combination System (DUACS) and made available under the name of DT2021 through the Copernicus Marine Service (CMEMS) and the Copernicus Climate Change Service (C3S). New standards have been applied and various geophysical correction parameters have been updated compared to the previous release in order to improve the product quality. This paper describes the assessment of this new release through the comparison of both the all satellites and the two satellites product with external in situ tide gauge measurements in the coastal areas of the European seas for a time period from 1 January 1993 to 31 May 2020. The aim is to quantify the improvements on the previous DT2018 processing version for the retrieval of sea level in the coastal zone. The results confirmed that the CMEMS product in the new DT2021 processing version better solves the signal in the coastal band. The all satellites dataset showed a reduction of 3ĝ€¯% in errors when compared with tide gauges and of 5ĝ€¯% in the variance of the differences between the datasets compared to DT2018 reprocessing. Moreover, the all satellites dataset provided more accurate sea level measurements when making a comparison with tide gauges with respect to the climatic two satellites dataset due to the better performance of the former for the assessment of higher than climatic frequency signals. By contrast, the two satellite dataset is the most suitable product for the assessment of long-Term sea level sea surface height (SSH) trends in the coastal zone due to its larger stability to the detriment of the all satellites dataset.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/337994
https://api.elsevier.com/content/abstract/scopus_id/85163927655
url http://hdl.handle.net/10261/337994
https://api.elsevier.com/content/abstract/scopus_id/85163927655
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001198
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.5194/os-19-793-2023
https://doi.org/10.5194/os-19-793-2023
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv European Geosciences Union
Copernicus Publications
publisher.none.fl_str_mv European Geosciences Union
Copernicus Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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