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Linking imperviousness coefficient to urbanism features through Geographical Information Systems / Patricia Bordin (2005)

Public Titre : Linking imperviousness coefficient to urbanism features through Geographical Information Systems Type de document : Article/Communication Auteurs : Patricia Bordin , Auteur ; M. Mayeux, Auteur ; Olivier Bonin , Auteur ; J.C. Deutsch, Auteur Editeur : Lyngby : Technical University of Denmark Année de publication : 2005 Conférence : ICUD 2005, 10th International Conference on Urban Drainage 21/08/2005 26/08/2005 Copenhague Danemark Abstracts only Note générale : in : Eriksson E., Genç-Fuhrman H., Vollertsen J., Ledin A., Hvitved-Jacobsen T. and Mikkelsen P.S. (Eds.)(2005): 10th International Conference on Urban Drainage 21-26 August 2005, Copenhagen/Denmark, Abstract collection, 68 pp. ISBN 87-89220-80-3 - PAS DE DOCUMENT, NI D'URL Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Analyse spatiale [Termes IGN] surface imperméable Résumé : (auteur) One of the major problems in the modeling of stormwater runoff is the determination of the rainfall excess. For very long time urbanhydrologists have used the concept of run-off coefficient which gives an order of magnitude of run-off losses. In dense urban areas,the imperviousness area is used to approximate this run-off coefficient. There are two advantages to this approach: the ability tohave a measured value independent from the rain event, and the ability to make a link with the characteristics of urbanism. Manyresearchers have tried to establish relations between the imperviousness coefficient and parameters such as: type of roofs for thebuildings, kind of road systems (streets, pavements, places etc.), kind of public spaces (waste ground, green spaces, playgroundetc.). Empirical relations have been established, but in the best cases they were just valid for the sites where they have been implemented. New kinds of GIS have been developed in France which enable to search general relationship between imperviousnesscoefficient and urban parameters, in order to better calculate this coefficient for present urbanization and to predict its value forfuture urbanization. Numéro de notice : C2005-060 Affiliation des auteurs : COGIT+Ext (1988-2011) Thématique : GEOMATIQUE Nature : Communication nature-HAL : ComSansActesPubliés-Unpublished DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=103489