Rubble-mound structures are commonly used for coastal and port protection and needs a properly design as well as inspection and maintenance during its lifetime. The design of such breakwaters usually requires a physical scale model to be tested under different irregular incident wave and tide conditions in order to evaluate its hydraulic and structural behaviour, namely the stability of the proposed design. Arm...
Gullies are devices that connect the surface system to the sewer allowing the drainage of water during a rainfall event. During severe flooding, the sewer might become pressurized and water may gush out of the sewer onto the surface, in what is termed reverse flow. Experimental and numerical studies of gullies are rare because of the high computational time and the experimental facilities costs. In this paper w...
Growing advances in remote sensing technologies together with the widespread availability of Digital terrain models (DTM) have intensified the research into two-dimensional (2D) models. Supported by detailed DTM, 2D models can become very accurate tools yet not without an added cost on the computational effort. Floodplain inundation is characterised by a slow varying phenomenon which can last hours, days or eve...
Flash flooding is characterised by a rapid flooding phenomenon caused by intense rainfall. Despite being an extreme event with high uncertainty, the rainfall-run-off process is often regarded as deterministic (rather than stochastic). In this paper, the Soil Conservation Service (SCS) flood hydrograph uncertainty is quantified based on the Total Error Framework (TEF), and introduced into the model by applying p...
Due to the increased frequency of extreme events caused by climate change, flooding in urban areas are becoming increasingly frequent. The village of Agualva, located in Terceira Island (Azores, Portugal), suffered a severe flood on the early morning of 15th of December 2009 caused by a short-duration and extreme intensity rainfall event. This village lies on the downstream part of the basin of the Ribeira da A...
The village of Agualva, located in Terceira Island, Azores, Portugal, experienced severe flooding on the early morning of 15th of December 2010. The flooding was caused by a short-duration and extreme intensity rainfall event. In less than four hours a total of 70mm of rain rushed down the catchment, flooding several streets and causing the main water course to transport a mix of mud, rocks and debris.