Articles | Volume 21, issue 11
https://doi.org/10.5194/hess-21-5911-2017
https://doi.org/10.5194/hess-21-5911-2017
Research article
 | 
28 Nov 2017
Research article |  | 28 Nov 2017

The challenge of forecasting impacts of flash floods: test of a simplified hydraulic approach and validation based on insurance claim data

Guillaume Le Bihan, Olivier Payrastre, Eric Gaume, David Moncoulon, and Frédéric Pons

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Short summary
This paper illustrates how an integrated flash flood monitoring (or forecasting) system may be designed to directly provide information on possibly flooded areas and associated impacts on a very detailed river network and over large territories. The approach is extensively tested in the regions of Alès and Draguignan, located in south-eastern France. Validation results are presented in terms of accuracy of the estimated flood extents and related impacts (based on insurance claim data).