Article | REF: P4225 V1

Early alert systems for sudden flooding

Author: Pierre-Antoine VERSINI

Publication date: March 10, 2012 | Lire en français

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    1. Background information

    The term flash flood was proposed by the International Association of Hydrological Sciences . It corresponds to the following definition: "a flood whose onset is sudden, often difficult to predict, with a rapid rise time and relatively high specific discharge. These flash floods are generally linked to intense rainfall events and often occur in moderate-sized basins". In reality, this translates into episodes where the rapidity of response stems partly from the size of the catchment areas concerned, generally less than a few hundred km ...

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