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27.02.2018 | Ausgabe 7/2018 Open Access

Water Resources Management 7/2018

Predicting Flood Hazard Indices in Torrential or Flashy River Basins and Catchments

Zeitschrift:
Water Resources Management > Ausgabe 7/2018
Autoren:
Davor Kvočka, Reza Ahmadian, Roger A Falconer

Abstract

Flood hazard maps are one of the main components of any flood risk management strategy. It is predicted that the degree of flood risk is going to significantly increase in the future due to climatic and environmental changes, and hence it is increasingly important that state-of-the-art methods are implemented for assessing human stability in floodwaters. Therefore, this paper focuses on proposing more accurate and detailed guidelines for predicting flood hazard indices in small and steep river basins or catchments, prone to the occurrence of flash flooding. The results obtained in this study indicate that for river basins with an average bed gradient greater than 1% (i.e. torrential or flashy river basins or catchments), then the flood hazard indices should be predicted using criteria which are based on the physical interpretation of the processes that affect the human stability in floodwaters, i.e. mechanics based and experimentally calibrated flood hazard assessment methods.

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