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Méthodologie pour l’évaluation du risque de ruissellement pluvial : application sur une commune rurale du département du Gard (France)

Abstract : This article proposes a qualitative method for estimating runoff sensitivity in Mediterranean rural area. According to our approach we generate sensitivity maps at the local level. The method is tested on a catchment area located in South of France and strongly affected by short but intense rainy episodes. The qualitative approach firstly consists in identifying the factors which impacting the phenomenon, either directly or indirectly. These elements, or variables, are evaluated and quantified using ranking factors. This storm runoff risk assessment methodology can be refined through a sensitivity analysis of the ranking and weighting factors. In order to do this, it is necessary to test our approach on Mediterranean rural communes with various geological and pedagogical contexts and human occupations. These resulting maps are crucial for the local elected representatives in terms of planning, development and risk management. After refinement, our method can be very useful for the State services or even for consulting engineers working on rural communes affected by this type of risk.
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https://halshs.archives-ouvertes.fr/halshs-01722664
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Submitted on : Sunday, March 4, 2018 - 9:56:18 PM
Last modification on : Saturday, June 25, 2022 - 11:29:42 PM

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  • HAL Id : halshs-01722664, version 1

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Ingrid Canovas, Sophie Sauvagnargues, David Salze, Olivier Laganier, Pierre-Alain Ayral. Méthodologie pour l’évaluation du risque de ruissellement pluvial : application sur une commune rurale du département du Gard (France). Dynamiques Environnementales - Journal international des géosciences et de l’environnement, Presses universitaires de Bordeaux [1983-2020] ; CEDETE (Université d'Orléans) (2021-..), 2011, L'homme face aux risques, pp.53-67. ⟨halshs-01722664⟩

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