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WinBasin: using improved algorithms and the GIS technique for automated watershed modelling analysis from digital elevation models / W. Lin in International journal of geographical information science IJGIS, vol 22 n° 1-2 (february 2008)  

Public [article]  inInternational journal of geographical information science IJGIS > vol 22 n° 1-2 (february 2008) . - pp 47 - 69 Titre : WinBasin: using improved algorithms and the GIS technique for automated watershed modelling analysis from digital elevation models Type de document : Article/Communication Auteurs : W. Lin, Auteur ; W. Chou, Auteur ; et al., Auteur Année de publication : 2008 Article en page(s) : pp 47 - 69 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] analyse spatiale [Termes IGN] bassin hydrographique [Termes IGN] données vectorielles [Termes IGN] géomorphologie locale [Termes IGN] ligne de partage des eaux [Termes IGN] modèle numérique de surface [Termes IGN] système d'information géographique Résumé : (Auteur) WinBasin is a GIS-based watershed analysis system that can automatically calculate depressionless flow directions, delineate watersheds/sub-watersheds, extract realistic drainage networks, and calculate geomorphological indices and hydrological responses from digital elevation models. Several improved algorithms coupled with GIS techniques were proposed for automated watershed analysis. First, different from depression fill-up treatment methods, the depression watershed method coupled with the improved fuzzy c-mean algorithm allows the depression outlet location and flow directions to be determined. Second, by using the GIS-based point-and-click interface coupled with outlet-tracing and headwater-tracing algorithms, watersheds with user-specified outlets and realistic drainage networks can be easily extracted based on the derived flow directions. The analysed results can be exported to vector format for linkage with other GIS software. Third, the geomorphological indices and hydrological responses (width function and geomorphological instantaneous unit hydrograph) in a watershed can also be instantly derived based on the proposed algorithms and the GIS technique. Copyright Taylor & Francis Numéro de notice : A2008-104 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/13658810701300121 En ligne : https://doi.org/10.1080/13658810701300121 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29099 [article]

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