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Integrated use of SRM, Landsat ETM+ data and 3D perspective views to identify the tectonic geomorphology of Dehradun valley, India / A.K. Singh in International Journal of Remote Sensing IJRS, vol 28 n°11-12 (June 2007)  

Public [article]  inInternational Journal of Remote Sensing IJRS > vol 28 n°11-12 (June 2007) . - pp 2403 - 2414 Titre : Integrated use of SRM, Landsat ETM+ data and 3D perspective views to identify the tectonic geomorphology of Dehradun valley, India Type de document : Article/Communication Auteurs : A.K. Singh, Auteur ; B. Parkash, Auteur ; P.R. Choudhury, Auteur Année de publication : 2007 Article en page(s) : pp 2403 - 2414 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] carte géomorphologique [Termes IGN] géomorphologie locale [Termes IGN] image Landsat-ETM+ [Termes IGN] Inde [Termes IGN] modèle numérique de terrain [Termes IGN] ombre [Termes IGN] perspective [Termes IGN] tectonique [Termes IGN] vallée [Termes IGN] visualisation 3D Résumé : (Auteur) The present study aims to develop an integrated shaded relief model (SRM), remote sensing image and three-dimensional (3D) perspective view based approach for delineating tectonic geomorphology of the Dehradun Intermontane valley, India. SRM created from digital elevation model (DEM) actually represents the information of the bare ground surface without any surface cover such as vegetation and landuse. Under user-specified positions of the sun, this was useful in enhancing the lineaments. This, coupled with Landsat ETM+ data and 3D perspective views has proven to be a very good tool for the identification of geological features. In a hilly terrain, like the present area, having dense forest cover, many places are inaccessible and geological field mapping is quite difficult. This approach successfully identified tectonic geomorphological features like faults, alluvial fans and terraces in the present area. Comparison of the identified faults and geomorphic features with published work and field checks reveals that this method of mapping can reduce the time and effort required in fieldwork to a large extent. Numéro de notice : A2007-308 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160600993397 En ligne : https://doi.org/10.1080/01431160600993397 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28671 [article]

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