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Challenges and lessons from a wetland LiDAR project: a case study of the Okefenokee Swamp, Georgia, USA / L. Shea Rose in Geocarto international, vol 28 n° 3-4 (June - July 2013)  

Public [article]  inGeocarto international > vol 28 n° 3-4 (June - July 2013) . - pp 210 - 226 Titre : Challenges and lessons from a wetland LiDAR project: a case study of the Okefenokee Swamp, Georgia, USA Type de document : Article/Communication Auteurs : L. Shea Rose, Auteur ; Jeong C. Seong, Auteur ; Jared Ogle, Auteur ; Ed Beute, Auteur ; et al., Auteur Année de publication : 2013 Article en page(s) : pp 210 - 226 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] données lidar [Termes IGN] données localisées 3D [Termes IGN] Géorgie (Etats-Unis) [Termes IGN] marais salant [Termes IGN] modèle numérique de surface [Termes IGN] pente [Termes IGN] tourbe [Termes IGN] zone humide Résumé : (Auteur) Airborne LiDAR (Light Detection and Ranging) provides opportunities to generate high-quality digital elevation models (DEMs) even in wetland environments. Our project, performed over the Okefenokee Swamp in Georgia during the spring of 2010, shows that several, distinctive factors must be considered to ensure successful wetland LiDAR projects. Some of the challenges include selecting optimal flight times in accordance with weather variability and water levels, having effective and quality control protocols, applying and developing filtering and interpolation algorithms, breaklines in swamps and accounting for data striping and noise. While some of these issues are faced in any airborne LiDAR acquisition, many of these require special consideration in a low-slope wetland environment with water saturated soils, widespread shallow water, and sediments and extensive vegetation. An examination of these issues and how they were handled will help in ensuring the success of future LiDAR acquisitions and, in particular, will advance knowledge of producing quality DEMs in wetland environments. Numéro de notice : A2013-396 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106049.2012.681707 Date de publication en ligne : 14/05/2012 En ligne : https://doi.org/10.1080/10106049.2012.681707 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=32534 [article]

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