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

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

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8 pages, 6 figures

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Bibliographic Details
Main Authors: Corcione, Valeria, Nunziata, Ferdinando, Portabella, Marcos, Grieco, Giuseppe, Migliaccio, Maurizio
Other Authors: European Space Agency
Format: artículo biblioteca
Language:English
Published: Surveying and Mapping Press Co. 2021
Subjects:SAR, Wind speed, Azimuth cut-off, Significant wave height,
Online Access:http://hdl.handle.net/10261/368556
http://dx.doi.org/10.13039/501100000844
http://dx.doi.org/10.13039/501100006280
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spelling dig-icm-es-10261-3685562024-10-25T11:10:52Z SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes Corcione, Valeria Nunziata, Ferdinando Portabella, Marcos Grieco, Giuseppe Migliaccio, Maurizio European Space Agency Ministerio de Ciencia y Tecnología (España) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] SAR Wind speed Azimuth cut-off Significant wave height 8 pages, 6 figures In 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 cyclones Peer reviewed 2024-09-25T12:21:59Z 2024-09-25T12:21:59Z 2021 artículo http://purl.org/coar/resource_type/c_6501 Journal of Geodesy and Geoinformation Science 4(1): 30-37 (2021) 2096-5990 CEX2019-000928-S http://hdl.handle.net/10261/368556 10.11947/j.JGGS.2021.0104 2096-1650 http://dx.doi.org/10.13039/501100000844 http://dx.doi.org/10.13039/501100006280 en Publisher's version https://doi.org/10.11947/j.JGGS.2021.0104 Sí open Surveying and Mapping Press Co.
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic SAR
Wind speed
Azimuth cut-off
Significant wave height
SAR
Wind speed
Azimuth cut-off
Significant wave height
spellingShingle SAR
Wind speed
Azimuth cut-off
Significant wave height
SAR
Wind speed
Azimuth cut-off
Significant wave height
Corcione, Valeria
Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
description 8 pages, 6 figures
author2 European Space Agency
author_facet European Space Agency
Corcione, Valeria
Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
format artículo
topic_facet SAR
Wind speed
Azimuth cut-off
Significant wave height
author Corcione, Valeria
Nunziata, Ferdinando
Portabella, Marcos
Grieco, Giuseppe
Migliaccio, Maurizio
author_sort Corcione, Valeria
title SAR Azimuth Cut-off to Estimate Wind Speed under High Wind Regimes
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
publisher Surveying and Mapping Press Co.
publishDate 2021
url http://hdl.handle.net/10261/368556
http://dx.doi.org/10.13039/501100000844
http://dx.doi.org/10.13039/501100006280
work_keys_str_mv AT corcionevaleria sarazimuthcutofftoestimatewindspeedunderhighwindregimes
AT nunziataferdinando sarazimuthcutofftoestimatewindspeedunderhighwindregimes
AT portabellamarcos sarazimuthcutofftoestimatewindspeedunderhighwindregimes
AT griecogiuseppe sarazimuthcutofftoestimatewindspeedunderhighwindregimes
AT migliacciomaurizio sarazimuthcutofftoestimatewindspeedunderhighwindregimes
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