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D6.2 From hazard to risk: models for the DEMOs - Part 6 -France -Brague catchment

Abstract : Flash floods and torrential floods occur frequently in the Brague catchment, the last extreme event in Oct. 2015 was a large-scale disaster. Located in Southern France, the Brague catchment is challenged by flood hazards threatening residential and economic areas. Those living in floodprone areas face the risk of severe damage to their infrastructures due to torrential floods eventually aggravated after forest wildfire, and those living outside flooded areas have to cope with runoff hazards. These natural disasters, although they are natural drivers of ecology and geomorphology, generate large losses to economy and human lives. Flood and fire risk analysis combined to nature-based solutions (NBS) are an opportunity to reduce vulnerability and to assess the value of NBS. This report aims at presenting the methodology developed in the Brague DEMO to assess the potential efficiency of nature-based solutions. The main strategies that will be investigated are a series of NBS spread along the river corridor in the lowlands where the largest number of assets and people is concentrated. However, a significant part of the catchment is still occupied by forests and a study of forest fire hazards and possible cascading consequences on floods in the lowlands will also be performed in order to raise the awareness of the current flood reduction ecosystem service of forests. The report is organized as follows: (i) fire hazards, (ii) hydrology (rainfall and runoff modelling), (iii) hydraulics, (iv) exposure based on insurance flood claims and (v) integrated flood protection schemes (assessment and portfolio
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Contributor : Guillaume Piton Connect in order to contact the contributor
Submitted on : Thursday, November 26, 2020 - 5:31:26 PM
Last modification on : Wednesday, November 3, 2021 - 5:52:35 AM
Long-term archiving on: : Saturday, February 27, 2021 - 8:06:54 PM


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  • HAL Id : hal-03026632, version 1



Guillaume Piton, S. Dupire, Alexandre Mas, Roxane Marchal, David Moncoulon, et al.. D6.2 From hazard to risk: models for the DEMOs - Part 6 -France -Brague catchment. 2018, pp.476. ⟨hal-03026632⟩



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