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Use of documentary sources on past flood events for flood risk management and land planning

Abstract : The knowledge of past catastrophic events can improve flood risk mitigation policy, with a better awareness against risk. As such historical information is usually available in Europe for the past five centuries, historians are able to understand how past society dealt with flood risk, and hydrologists can include information on past floods into an adapted probabilistic framework. In France, Flood Risk MitigationMaps are based either on the largest historical known flood event or on the 100-year flood event if it is greater. Two actions can be suggested in terms of promoting the use of historical information for flood risk management: (1) the development of a regional flood data base, with both historical and current data, in order to get a good feedback on recent events and to improve the flood risk education and awareness; (2) the commitment to keep a persistent/perennial management of a reference network of hydrometeorological observations for climate change studies.
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Submitted on : Friday, May 15, 2020 - 2:42:16 PM
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D. Coeur, M. Lang. Use of documentary sources on past flood events for flood risk management and land planning. Comptes Rendus Géoscience, Elsevier, 2008, pp.644-650. ⟨10.1016/j.crte.2008.03.001⟩. ⟨hal-02590990⟩



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