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Water 2016, 8(12), 597; doi:10.3390/w8120597

Generation of a Design Flood-Event Scenario for a Mountain River with Intense Sediment Transport

Department of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milano, Italy
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Author to whom correspondence should be addressed.
Academic Editor: Peggy A. Johnson
Received: 13 October 2016 / Revised: 14 November 2016 / Accepted: 12 December 2016 / Published: 16 December 2016
(This article belongs to the Special Issue Stream Channel Stability, Assessment, Modeling, and Mitigation)
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Abstract

International directives encourage the incorporation of sediment transport analyses into flood risk assessment, in recognition of the significant role played by sediment in flood hazard. However, examples of risk analysis frameworks incorporating the effect of sediment transport are still not widespread in the literature, resulting in a lack of clear guidelines. This manuscript considers a study site in the Italian Alps and presents a hydro-morphologic model for generation of flood scenarios towards hazard assessment. The analysis is concentrated on a design flood event with 100-year return period, for which an outflowing discharge is computed as a result of the river modeling. However, it is also argued how suitable model input parameter values can be obtained from analyses of river flows in a yearly duration curve. Modeling tools are discussed with respect to their capabilities and limitations. The results of the analysis are site-specific, but the proposed methodology can be exported to other hydro-graphic basins. View Full-Text
Keywords: mountain catchments; flash flood; flood hazard; design flood scenario; sediment transport; river morphology; inundation mountain catchments; flash flood; flood hazard; design flood scenario; sediment transport; river morphology; inundation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Radice, A.; Longoni, L.; Papini, M.; Brambilla, D.; Ivanov, V.I. Generation of a Design Flood-Event Scenario for a Mountain River with Intense Sediment Transport. Water 2016, 8, 597.

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