SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes

8 pages, 6 figures

Detalles Bibliográficos
Autores: Corcione, Valeria, Nunziata, Ferdinando, Portabella, Marcos, Grieco, Giuseppe, Migliaccio, Maurizio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/368556
Acceso en línea:http://hdl.handle.net/10261/368556
Access Level:acceso abierto
Palabra clave:SAR
Wind speed
Azimuth cut-off
Significant wave height
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spelling SAR Azimuth Cut-off to Estimate Wind Speed under High Wind RegimesCorcione, ValeriaNunziata, FerdinandoPortabella, MarcosGrieco, GiuseppeMigliaccio, MaurizioSARWind speedAzimuth cut-offSignificant wave height8 pages, 6 figuresIn this study, the azimuth cut-off method, typically used for SAR moderate wind speed estimation purposes, is analyzed under high wind regimes. Firstly, the importance of the pixel spacing, the size of the boxes selected for Synthetic Aperture Radar (SAR) image partitioning and the image texture in terms of homogeneities are discussed by considering their influence on the azimuth cut-off (λc) estimation. Secondly, a quality control analysis of the reliability of λc is carried out by evaluating the distance between the autocorrelation functions (ACF) and their correspondent fittings. This analysis points out the importance of filtering out the unreliable and unfeasible λc values in order to improve the wind speed estimation. The quality control procedure is based on a x2 test, applied on a large Sentinel-1A dataset. The soundness of the test is verified by an increment in terms of correlation between λc estimations and wind speed values. This approach is, then, applied under high wind regimes, i.e., tropical cyclonesPeer reviewedSurveying and Mapping Press Co.European Space AgencyMinisterio de Ciencia y Tecnología (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/368556reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.11947/j.JGGS.2021.0104Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3685562026-05-22T06:33:51Z
dc.title.none.fl_str_mv SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
title SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
spellingShingle SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
Corcione, Valeria
SAR
Wind speed
Azimuth cut-off
Significant wave height
title_short SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
title_full SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
title_fullStr SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
title_full_unstemmed SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
title_sort SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
dc.creator.none.fl_str_mv Corcione, Valeria
Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
author Corcione, Valeria
author_facet Corcione, Valeria
Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
author_role author
author2 Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
author2_role author
author
author
author
dc.contributor.none.fl_str_mv European Space Agency
Ministerio de Ciencia y Tecnología (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv SAR
Wind speed
Azimuth cut-off
Significant wave height
topic SAR
Wind speed
Azimuth cut-off
Significant wave height
description 8 pages, 6 figures
publishDate 2021
dc.date.none.fl_str_mv 2021
2024
2024
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/10261/368556
url http://hdl.handle.net/10261/368556
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.11947/j.JGGS.2021.0104
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Surveying and Mapping Press Co.
publisher.none.fl_str_mv Surveying and Mapping Press Co.
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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score 15.811543

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