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Characterization of Arctic sea ice thickness using high-resolution spaceborne polarimetric SAR data / J.W. Kim in IEEE Transactions on geoscience and remote sensing, vol 50 n° 1 (January 2012)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 50 n° 1 (January 2012) . - pp 13 - 22 Titre : Characterization of Arctic sea ice thickness using high-resolution spaceborne polarimetric SAR data Type de document : Article/Communication Auteurs : J.W. Kim, Auteur ; D.J. Kim, Auteur ; B.J. Hwang, Auteur Année de publication : 2012 Article en page(s) : pp 13 - 22 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Arctique, océan [Termes IGN] bande C [Termes IGN] bande X [Termes IGN] données polarimétriques [Termes IGN] épaisseur de la glace [Termes IGN] glace de mer [Termes IGN] image Radarsat [Termes IGN] image TerraSAR-X [Termes IGN] polarimétrie radar [Termes IGN] polarisation [Termes IGN] polarisation croisée [Termes IGN] télédétection en hyperfréquence Résumé : (Auteur) In this paper, we have investigated the relationship between the depolarization effects and the wintertime sea ice thickness in the landfast ice region where smooth thick first-year ice (FYI) and deformed old ice coexisted by using C- and X-band spaceborne polarimetric synthetic aperture radar (SAR) data (RADARSAT-2 and TerraSAR-X). We have found a strong correlation between the in situ sea ice thickness and the SAR-derived depolarization factors (copolarized correlation and cross-polarized ratio). The observed relationships have demonstrated not only a categorical difference between FYI and multiyear ice (MYI) but also a one-to-one continuity in the scatter plots, rather than being clustered. It clearly shows that the observed correlations are not merely from the categorical difference in scattering mechanism between FYI and MYI and that there might exist a one-to-one relationship between thickness and depolarization factors at least in our deformed ice case. This suggests that depolarization factors could be effective SAR parameters in the estimation of wintertime sea ice thickness. Numerical model simulations explained some portions of the correlation by employing multiple scattering on the sea ice surface and volume scattering within the low-density subsurface layer. Numéro de notice : A2012-030 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2011.2160070 Date de publication en ligne : 29/07/2011 En ligne : https://doi.org/10.1109/TGRS.2011.2160070 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31478 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-2012011	RAB	Revue	Centre de documentation	En réserve L003	Disponible