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Definition of ICESat selection criteria for their use as height references for TanDEM-X / J. Gonzalez in IEEE Transactions on geoscience and remote sensing, vol 48 n° 6 (June 2010)  

Public [article]  inIEEE Transactions on geoscience and remote sensing > vol 48 n° 6 (June 2010) . - pp 2750 - 2757 Titre : Definition of ICESat selection criteria for their use as height references for TanDEM-X Type de document : Article/Communication Auteurs : J. Gonzalez, Auteur ; M. Bachmann, Auteur ; Rolf Scheiber, Auteur ; G. Krieger, Auteur Année de publication : 2010 Article en page(s) : pp 2750 - 2757 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] Allemagne [Termes IGN] analyse comparative [Termes IGN] correction géométrique [Termes IGN] données ICEsat [Termes IGN] erreur de positionnement [Termes IGN] image TanDEM-X [Termes IGN] interféromètrie par radar à antenne synthétique [Termes IGN] modèle numérique de surface [Termes IGN] précision altimétrique Résumé : (Auteur) The TanDEM-X satellite synthetic aperture radar (SAR) mission, which is the result of the partnership between the German Aerospace Center (DLR) and Astrium GmbH, has the goal to deliver a high-precision global digital elevation model (DEM). The X-band SAR interferometry-derived DEMs contain absolute and relative height errors that have to be minimized with the help of height references in order to achieve the specified accuracies. ICESat laser altimetry data are suited for this task, due to their accuracy and global distribution. In order to gain experience in the comparison between a radar-derived DEM and ICESat GLA14 elevation data, an X-band DEM was acquired over a test region with the experimental airborne radar system of DLR in Oberpfaffenhofen. Additionally, a laser DEM of the area was used to verify the height accuracy claimed by previously published ICESat studies over different terrain types and after applying different selection threshold criteria. The analyses described in this paper are the basis for the definition of a suitable global ICESat selection strategy and include the computation of the density of selected ICESat samples over the Earth. These aspects are crucial for a successful TanDEM-X DEM generation. Numéro de notice : A2010-195 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2010.2041355 En ligne : https://doi.org/10.1109/TGRS.2010.2041355 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=30389 [article]

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