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Testing a near-infrared Lidar mounted with a large incidence angle to monitor the water level of turbid reservoirs / S. Tamari in ISPRS Journal of photogrammetry and remote sensing, vol 66 n° 6 supplement (December 2011)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 66 n° 6 supplement (December 2011) . - pp 85 - 91 Titre : Testing a near-infrared Lidar mounted with a large incidence angle to monitor the water level of turbid reservoirs Type de document : Article/Communication Auteurs : S. Tamari, Auteur ; J. Mory, Auteur ; V. Guerrero-Meza, Auteur Année de publication : 2011 Article en page(s) : pp 85 - 91 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie [Termes IGN] angle d'incidence [Termes IGN] coefficient de rétrodiffusion [Termes IGN] données lidar [Termes IGN] niveau de l'eau [Termes IGN] rayonnement proche infrarouge [Termes IGN] rétrodiffusion Résumé : (Auteur) It is sometimes difficult to monitor the water level of reservoirs with a sloping bank – such as many lakes and earth-dam embankment – using terrestrial techniques or airborne instruments. A proposed alternative is a new technique using a terrestrial near-infrared Lidar mounted with a large incidence angle (at least between 40° and 70°). This technique assumes that the Lidar can detect the (sub-)surface of a water body provided that it contains enough suspended particles to backscatter the light emitted by the instrument to its detector. Tests performed with a commercial Lidar show that the technique can be used to estimate the water level of a reservoir with moderate accuracy (within 10.05 m [p = 0.95]) when the water is very turbid (Secchi depth Numéro de notice : A2011-521 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2011.01.009 En ligne : https://doi.org/10.1016/j.isprsjprs.2011.01.009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=31415 [article]

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