Wave overtopping at near-vertical seawalls: Influence of foreshore evolution during storms

This work presents the results of an investigation on how wave overtopping at a near-vertical seawall at the back of a sandy foreshore is influenced by sequences of erosive storms. The experiments were carried out in the Large Wave Flume (GWK) at Leibniz University, Hannover (Germany). The tested layout consisted of a near-vertical 10/1...

The Influence of Infragravity Waves on Overtopping at Coastal Structures with Shallow Foreshores

Coastal communities across the globe are often protected by structures, such as seawalls, levees or dikes, which allow only a safe volume of water to pass over or “overtop” them due to wave action during storms. The area seaward of these structures is often characterised by shallow, gently sloping beds referred to as foreshores.<br/>As storm...

An integrated framework of coastal flood modelling under the failures of sea dikes: a case study in Shanghai

Climate change leads to sea level rise worldwide, as well as increases in the intensity and frequency of tropical cyclones (TCs). Storm surge induced by TC’s, together with spring tides, threatens to cause failure of flood defenses, resulting in massive flooding in low-lying coastal areas. However, limited research has been done on the...

Assessment of changes in flood risk in South Holland due to sea level rise: How can the dunes of dijkring 14 cope with sea level rise?

Economic risk due to a potential flood event is determined by combining the estimated damages and the probability of failure for many scenarios. In recent research of the IPCC (Intergovernmental Panel on Climate Change) it was stated that the sea level will rise more than expected due to climate change . This could influence the flood risk in...

Dune Based Alternative to Coastal Spine Land Barrier in Galveston Bay: Conceptual Design

Galveston Bay is an area in the Upper Texas Coast (USA) historically suffering from the impact of several large magnitude hurricanes. In 2008 hurricane Ike, one of the most devastating natural disasters in Unites States recent past, raised awareness of the flood vulnerability problem of the area and triggered the beginning of different proposals...

Data Reduction Techniques of Coral Reef Morphology and Hydrodynamics for use in Wave Runup Prediction

Many tropical, coral reef-lined coasts, are low-lying with elevations less than five meters above mean sea level. Climate-change-driven sea level rise, coral reef decay and changes in (storm) wave climate will lead to greater chance and impacts of wave-driven flooding, posing a heavy threat to these coastal communities. Early warning systems ...

Contribution of infragravity waves to run-up and overwash in the pertuis breton embayment (France)

Wave run-up and dune overwash are typically assessed using empirical models developed for a specific range of often-simplistic conditions. Field experiments are essential in extending these formulae; yet obtaining comprehensive field data under extreme conditions is often challenging. Here, we use XBeach Surfbeat (XB-SB)-a shortwave-averaged...

Landscapes of Resistance: documenting the frontline of Climate Change in Louisiana

Louisiana, USA, operates as an oilscape, sacrificing its landscape in pursuit of economic prosperity through the oil and gas industry. Combined with sea level rise, this has resulted in continuous land loss since the fifties, making the Louisiana coast one of the fastest declining in the world. As a consequence, many communities are living on...

Flood safety in delta cities: Development of a comprehensive risk-based model to support decision making on measures against pluvial, riverine and coastal flooding in urban area, with the application to Hoboken, New Jersey

Flood safety in low-lying delta regions has been a challenge of all ages. Societies worldwide have been trying to protect themselves against flood hazards for centuries. Floods in vulnerable urban regions are often caused by heavy rainfall, high river flow, extreme sea levels, or combinations of those three. Currently, there is a lack of tools...