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Comparative hazard analysis of processes leading to remarkable flash floods (France, 1930–1999)

Boudou, M. ; Lang, M. ; Vinet, F. ; Cœur, D.

Journal of hydrology (Amsterdam), 2016-10, Vol.541 (PART A), p.533-552 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    Comparative hazard analysis of processes leading to remarkable flash floods (France, 1930–1999)
  • Autor: Boudou, M. ; Lang, M. ; Vinet, F. ; Cœur, D.
  • Assuntos: Cascade effect ; Comparative analysis ; Environmental Sciences ; Flash flood ; Flash flooding ; Floods ; Hazard assessment ; Hazards ; Historical hydrology ; Hydrology ; Multidisciplinary approach ; Policies ; Remarkable flood ; Risk ; Risk management
  • É parte de: Journal of hydrology (Amsterdam), 2016-10, Vol.541 (PART A), p.533-552
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: •Remarkable floods are identified according to a transdisciplinary methodology.•A focus is done on four flash flood events in order to understand the main causative factors.•Crossing the hazard indicators highlights the role played by several additional factors during the hazard process.•Cascade effects significance especially points out the hybrid process leading to a remarkable flash flood. Flash flood events are responsible for large economic losses and lead to fatalities every year in France. This is especially the case in the Mediterranean and oversea territories/departments of France, characterized by extreme hydro-climatological features and with a large part of the population exposed to flood risks. The recurrence of remarkable flash flood events, associated with high hazard intensity, significant damage and socio-political consequences, therefore raises several issues for authorities and risk management policies. This study aims to improve our understanding of the hazard analysis process in the case of four remarkable flood events: March 1930, October 1940, January 1980 and November 1999. Firstly, we present the methodology used to define the remarkability score of a flood event. Then, to identify the factors leading to a remarkable flood event, we explore the main parameters of the hazard analysis process, such as the meteorological triggering conditions, the return period of the rainfall and peak discharge, as well as some additional factors (initial catchment state, flood chronology, cascade effects, etc.). The results contribute to understanding the complexity of the processes leading to flood hazard and highlight the importance for risk managers of taking additional factors into account.
  • Editor: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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