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Sea ice monitoring by L-band SAR: an assessment based on literature and comparisons of JERS-1 and ERS-1 imagery / W. Dierking in IEEE Transactions on geoscience and remote sensing, vol 44 n° 4 (April 2006)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 44 n° 4 (April 2006) . - pp 957 - 970 Titre : Sea ice monitoring by L-band SAR: an assessment based on literature and comparisons of JERS-1 and ERS-1 imagery Type de document : Article/Communication Auteurs : W. Dierking, Auteur ; T. Busche, Auteur Année de publication : 2006 Article en page(s) : pp 957 - 970 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] analyse diachronique [Termes IGN] angle d'incidence [Termes IGN] Arctique [Termes IGN] bande L [Termes IGN] diffusomètre [Termes IGN] glace de mer [Termes IGN] Groenland [Termes IGN] image ERS-SAR [Termes IGN] image JERS [Termes IGN] polarisation [Termes IGN] surveillance hydrologique [Termes IGN] Svalbard [Termes IGN] zone polaire Résumé : (Auteur) Spaceborne single-polarization C-band synthetic aperture radar (SAR) imagery is widely used to gather information about the state of the sea ice cover in the polar regions. C-band is regarded as a reasonable choice for all-season monitoring capabilities. For specific mapping tasks, however, other frequency hands can be more suitable. In the first part of this paper, the summary of a literature study dealing with the utilization of L-band SAR imagery for sea ice monitoring is presented. Investigations reveal that if deformation features such as ice ridges, rubble fields, and brash ice are to be mapped, L-band radar is superior in a number of cases. The second part of this paper addresses the comparison of JERS-1 and ERS-1 SAR images that were acquired over sea ice east of Svalbard and along the east coast of Greenland. The effects of the different frequencies, polarizations, and incidence angles of the two SAR Systems are discussed. It is demonstrated that the images of both sensors complement one another in the analysis of ice conditions, resulting in a more detailed view of the sea ice cover state. Copyright IEEE Numéro de notice : A2006-211 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.861745 En ligne : https://doi.org/10.1109/TGRS.2005.861745 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27938 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-06041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Polarimetric and interferometric characterization of coherent scatterers in urban areas / R.Z. Schneider in IEEE Transactions on geoscience and remote sensing, vol 44 n° 4 (April 2006)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 44 n° 4 (April 2006) . - pp 971 - 984 Titre : Polarimetric and interferometric characterization of coherent scatterers in urban areas Type de document : Article/Communication Auteurs : R.Z. Schneider, Auteur ; K.P. Papathanassiou, Auteur ; et al., Auteur Année de publication : 2006 Article en page(s) : pp 971 - 984 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] bande L [Termes IGN] coin réflecteur [Termes IGN] image aérienne [Termes IGN] image radar moirée [Termes IGN] polarimétrie [Termes IGN] zone urbaine Résumé : (Auteur) In this paper, the concept of point-like coherent scatterers (CSs) in urban areas is introduced. The detection of CSs in single and quad-polarized images is addressed and applied on polarimetric and interferometric high-resolution airborne SAR data at L-band. For the detection of CSs two different approaches are proposed and their individual performance is analyzed. The properties of the detected CSs and their polarimetric and interferometric characteristics are assessed. The role of polarimetry on the detection of the CSs is evaluated and the potential of extracting the orientation and dielectric properties of individual CSs is finally addressed. Copyright IEEE Numéro de notice : A2006-212 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.860950 En ligne : https://doi.org/10.1109/TGRS.2005.860950 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27939 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
065-06041	RAB	Revue	Centre de documentation	En réserve L003	Disponible