More effective knowledge sharing of nature-based flood defense pilots: A knowledge base approach

Currently, there is no standardised process for monitoring and evaluation of nature-based flood defenses pilots in Dutch rivers and floodplains. Thus, piloted technologies cannot be compared fairly with other nature-based flood defense technologies and conventional solutions. This study developed such a process by way of a monitoring and...

Accepting the current(s): A porous approach for the revitalization of a former port area in the Rhine-Meuse Delta

The constant manipulation of the Dutch delta system and the resulting creation of hard borders between the natural river landscape, the harbor and the city has led to a destabilized delta system(Hein, 2021; Meyer et al., 2015). The spatial and ecological challenges resulting from population growth and the resulting urban growth, as well as...

A probabilistic framework for the quantification of vegetation effects on the failure mechanisms of Dutch river dikes

River floods are becoming increasingly devastating because of climate change (more frequent and extreme rainfall), population growth and the increasing economic importance of river basins. This situation requires maintenance and strengthening of flood-defence systems.<br/><br/>Adding certain types of vegetation at precise locations for their...

Flood risk reduction by parallel flood defences – Case-study of a coastal multifunctional flood protection zone

In this paper the safety of a double-dike system (or twin dikes) is assessed. Such a system consist of two parallel lines of flood defences. During storms the combined strength of the parallel flood defences must prevent flooding of the hinterland. A culvert can be implemented for the tidal exchange of sea water to enable new land-uses in the...

Flood Risk Prediction under Global Vegetated Hydrodynamics: A Bayesian Network

The increasing frequency and intensity of extreme events due to global warming and climate change is increasing flood risk. To act, rather than react, nature-based solutions (NBS) involving vegetation and wetlands are being explored on top of conventional solutions like dikes. WHY? There was a dire need for global study quantifying the potential...

Quantifying the effect of woody vegetation on the wave loads on a dike using remote sensing: Large scale physical model tests

It is already acknowledged that Nature-based Solutions can be used to attenuate waves, however it is still uncertain to what extent the vegetation can contribute to decreasing the flood risk. So far mainly small-scale tests have been performed to quantify wave attenuating properties of vegetation. To quantify the effect of more extreme wave...

The effect of a shallow vegetated foreshore on infragravity waves: A study with SWASH

A specific type of wave is identified as an infragravity wave (IG wave). These waves with very long wave periods, even up to minutes, are possibly dangerous for flood events, increased storm surge and/or failure of coastal defences. Current guidelines for dike safety are often determined for gravity wave dominated systems, so identifying IG...

Assessment of nature-based flood defences' implementation potential: development and application of a game theory based method

Nature-based flood defence (NBFD) by means of vegetated foreshores is an innovative flood protection strategy. In contrasts with traditional hard structures it combines nature and flood protection functions and employs natural dynamics. Introducing such an innovation into actual flood protection projects requires not just proper understanding of...