NDLI: La méthode Inondabilité : appropriation par les hydrologues de la vulnérabilité dans le diagnostic sur le risque d'inondation

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La méthode Inondabilité : appropriation par les hydrologues de la vulnérabilité dans le diagnostic sur le risque d'inondation

Content Provider	Semantic Scholar
Author	Lang, Michel Chastan, Bernard Grelot, Frédéric
Copyright Year	2009
Abstract	La methode Inondabilite a ete developpee dans les annees 1990 par le Cemagref pour disposer d'un outil d'evaluation du risque d'inondation a l'echelle du bassin versant et proposer un cadre de negociation sur la notion de risque acceptable. Elle repose sur l'idee d'exprimer alea (intensite physique du phenomene naturel) et vulnerabilite (sensibilite d'un usage du sol aux inondations) avec une meme unite hydrologique, la periode de retour. Pour l'alea, il s'agit de la periode de retour de la premiere crue inondante. Pour la vulnerabilite, l'usager indique le niveau de protection souhaite en terme de periode de retour, le corollaire etant qu'il accepte ou tolere d'etre inonde par des crues plus importantes. Apres un rappel sur les principes de la methode Inondabilite, nous presentons une discussion sur la definition hydrologique de la vulnerabilite, et un travail complementaire effectue sur l'evaluation economique du consentement a payer pour beneficier de mesures de protection contre les inondations. / The Inondabilite method has been developed in the nineties by Cemagref as a tool for flood risk assessment at a basin scale. The main idea was to propose a framework of negotiation on acceptable flood risk. Both components, flood hazard and flood vulnerabilty were defined as a return period, the former being related to the first overflowing event, the latter being related to the expected level of protection. After a presentation on the Inondabilite framework, a discussion gives the advantages and limitations of such hydrological assessment of flood vulnerability. A complementary work is presented on the economical assessment of the willingness of population to pay for flood risk mitigation.
Starting Page	244
Ending Page	255
Page Count	12
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://hal.archives-ouvertes.fr/hal-00493184/document
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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