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Les apports de l'IAD à la caractérisation morphométrique des bassins versants sensibles aux crues rapides hyper-concentrées
(Bassin Parisien, Nord de la France)

Abstract : Classical morphometric methods have been the first quantitative methods created by geomorphologists to measure the catchment morphology. Many hydrological studies still use these methods. Though the catchment shape, the slopes and the drainage network organisation can be characterized by many quantitative indicators, several authors show lacks and limits of such tools. For example, the indices can not translate the hydrological response of a catchment. Nonetheless, in order to better analyze the incidence of the catchment structure on its hydrological dynamic, it appears that recent DAI tools are relevant. The assumed approach permits implementing both three morphological variables (shape, slope and drainage pattern) within a generalized cellular automaton model. It is possible moreover to simulate surface flows discharge using uniquely the 3D catchment structure. Results highlight the efficiency of some morphological systems and their influence on the hyper-concentrated stream flows observed recently on several catchments.
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https://halshs.archives-ouvertes.fr/halshs-00068710
Contributor : Johnny Douvinet <>
Submitted on : Friday, May 12, 2006 - 5:20:18 PM
Last modification on : Friday, September 18, 2020 - 2:34:10 PM
Long-term archiving on: : Saturday, April 3, 2010 - 10:31:15 PM

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  • HAL Id : halshs-00068710, version 1

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Johnny Douvinet, Daniel Delahaye, Patrice Langlois. Les apports de l'IAD à la caractérisation morphométrique des bassins versants sensibles aux crues rapides hyper-concentrées
(Bassin Parisien, Nord de la France). Interactions Nature-Sociétés - Analyse et modèles, May 2006, La Baule, France. 6p. ⟨halshs-00068710⟩

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