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Mountainous river flood medelling for integrated flood risk management. Application to the Thur river (France)

Nicolas Kreis
Abstract : The traditional flood management fails to protect people from floods and threatens the functionality of alluvial ecosystems. Flood risk management should be projected at a large scale and integrate the natural functionality of rivers. New engineering tools should be developed to build a decision support system. We propose an operational methodology to improve flood risk management applied to mountainous rivers. Flood risk diagnostic highlights the needs for protection and the ecosystems which should be restored. A foresight simulation of natural flooding restoration has been tested on the Thur river and on a "virtual" mountainous river. Both simulations show that this kind of project does not improve a better flood mitigation for strong slope rivers.We also have shown that embankments are not a sustainable flood management. Climatic change scenarios applied to the Thur river forecast an aggravation of floods for the 21st century. That's why we propose a new flood management based on resilience strategies. Society should learn to live with floods and to reconcile economical development and functional ecosystems.
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https://pastel.archives-ouvertes.fr/pastel-00001251
Contributor : Ecole Agroparistech <>
Submitted on : Wednesday, June 1, 2005 - 8:00:00 AM
Last modification on : Sunday, October 25, 2020 - 7:05:46 AM
Long-term archiving on: : Thursday, September 30, 2010 - 6:56:19 PM

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  • HAL Id : pastel-00001251, version 1

Citation

Nicolas Kreis. Mountainous river flood medelling for integrated flood risk management. Application to the Thur river (France). Sciences of the Universe [physics]. ENGREF (AgroParisTech), 2004. English. ⟨pastel-00001251⟩

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