Dear Colleague,

Flash floods are typically caused by short, high-intensity rainstorms in the presence of dam or levee breaks or mudslides, whenever the heavy rainfall exceeds the ability of the ground to absorb it, but also in urban areas whenever the heavy rainfall compromises the capability of the drainage system to convey water. These catastrophic events have been more and more frequent, producing a severe impact on the communities, with significant damage and life losses.

Despite their scientific and social importance, several features of the flash-flood response are poorly understood. Reliable and efficient numerical models are required for an accurate prediction of such events in real-scale cases, for an appropriate prevention and mitigation of consequences, as also demanded by the 2030 European Agenda for Sustainable Development. The flood risk assessment is of crucial importance in enhancing resilience to the impacts of climate change.

The validation and improvement of these numerical tools needs the support of laboratory experiments for data collection and a deeper understanding in controlled conditions of the physical processes.

Therefore, this Special Issue aims to offer Researchers and Technologists the opportunity to discuss and provide important insights on flash-flood analysis and modeling, highlighting critical points and future challenges. Potential topics include but are not limited to:

• Review of the hydrological and hydraulic mechanisms driving flash-flood response to intense rainfall;
• Characterize runoff response from selected extreme flash floods in Europe and in the world;
• Present recent advances in theoretical analysis of flash floods;
• Review recent advances in numerical modeling of flash floods on real topography;
• Collect laboratory experiments and field data useful to validate numerical models;
• Show applications of numerical models to flood hazard assessment.

Dr. Giacomo Viccione
Dr. Stefania Evangelista
Prof. Dr. Luis Garrote
Guest Editors

Manuscript Submission Information

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• Flash floods
• Drainage capacity
• Flood risk assessment and mitigation
• Numerical flood simulation
• Flooding experiments