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Retrieval of significant wave height and mean sea surface level using the GNSS-R interference pattern technique : results from a three-month field campaign / Alberto Alonso-Arroyo in IEEE Transactions on geoscience and remote sensing, vol 53 n° 6 (June 2015)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 53 n° 6 (June 2015) . - pp 3198 - 3209 Titre : Retrieval of significant wave height and mean sea surface level using the GNSS-R interference pattern technique : results from a three-month field campaign Type de document : Article/Communication Auteurs : Alberto Alonso-Arroyo, Auteur ; Adriano Camps, Auteur ; Hyuk Park, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 3198 - 3209 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] Espagne [Termes IGN] hauteurs de mer [Termes IGN] interférence [Termes IGN] niveau moyen des mers [Termes IGN] océanographie spatiale [Termes IGN] positionnement par GNSS [Termes IGN] réflectométrie par GNSS [Termes IGN] vague Résumé : (Auteur) Since 1993, when the European Space Agency (ESA) proposed the use of Global Navigation Satellite Systems reflected signals for sea mesoscale altimetry, a wide range of applications have appeared. This paper focuses on the retrieval of significant wave height (SWH) and the mean sea surface level (MSSL) from a ground-based experiment using the interference pattern technique (IPT). Two different observables on the IPT are analyzed: the oscillation frequency and the angle where coherency is lost. The point where coherency in the reflection process is lost can be related to the Rayleigh criterion for smooth surfaces and helps to determine the SWH. Spectral analysis on the interference pattern helps to determine the MSSL. A three-month field campaign was performed on the “Pont del Petroli” pier, Badalona, Spain, to see how the reflected GNSS signals were affected by coastal sea state and check previous assumptions. Results from this field experiment are shown, confirming that the SWH can be retrieved with accuracy of 6 cm and the MSSL with 4 cm. Estimations of both parameters are obtained every 30 min approximately. Numéro de notice : A2015-284 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2014.2374218 Date de publication en ligne : 18/12/2014 En ligne : https://doi.org/10.1109/TGRS.2014.2374218 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76401 [article]

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