Design of the navigation and discharge channel in the tidal lake of the Delta21 project: A design and morphological modelling study

The awareness of climate change has grown worldwide in the past years. Possible consequences of climate change are sea level rise, heavier storms and high river discharges, but also prolonged drought. For a country such as the Netherlands, these water level variations, high discharges and droughts could have a great impact. Therefore, solutions...

The application of a continuous nourishment in a tidal inlet system: Case study Ameland Inlet

There is a demand by Rijkswaterstaat for CO2-neutral sustainable methods and technologies to maintain the Dutch coastline. The Zandwindmolen is a fixed CO2-neutral dredge, transport and nourishment concept that nourishes sediment continuously. The purpose of using a Zandwindmolen is to provide the entire surrounding area where the Zandwindmolen...

Impact of a port and its structures on the morphodynamics of a tidal basin and its adjacent coast: A case study of Bluefields Bay, Nicaragua

To improve the socioeconomic situation in the Republic of Nicaragua, the government has decided to strengthen the country’s transport infrastructure by building a port on the Caribbean coast. The future port will be in Bluefields Bay, which can be characterised as a lagoon-shaped estuary. The inner basin is connected to the sea by two tidal...

Nuevo Ferroviario Rio Biobío: Hydraulic and structural study for the new railway bridge to investigate the influence of river morphodynamics and tsunami impact on the structural stability of the bridge pier

In Chile, the Biobío river separates the cities of Concepción and San Pedro de la Paz. Bridges crossing the Biobío river ensure a fast and dependable connection, which contributes to the transport options in the region. With the Biobío region being the second largest contributor to the country's GDP, an unreliable transport network is highly...

Morphological Response of the Dutch Sandy Coast to Accelerated Sea Level Rise: A process-based modelling approach using Delft3D, applied to the Delfland coast

Accelerated sea level rise (SLR) is predicted to have multiple adverse impacts on the coastal zone, aggravating phenomena such as coastal erosion on sandy coasts. For climate change adaptation planning and informing policy, morphodynamic changes occurring at coastlines are becoming increasingly important. In this study, a calibrated Delft3D...

Human interventions in river-estuary systems: A case study of the Loire, France

Like many rivers around the world, the Loire river in France has a history of human interventions in order to facilitate navigation and port development. Next to affecting bed levels directly, the heavy modification of the river-estuary has induced significant changes in the hydrodynamic and morphodynamic behaviour of the Loire. As a result, the...

Assessment of Climate Change Impacts on the Dynamics of Sandy Nearshore Inlet Systems: A case study: Katama Bay, and Santa Lucia Estuary

Sandy barriers comprise 12% of coastlines around the world, and most of these barriers enclose tidal bays and lagoons. These systems accommodate human settlements vulnerable to climate change, which offer enough economic, social, and environmental utility to require further research on the impact of climate change and subsequent best management...

Hydraulic and morphological impact of a closure dam in the Gulf of Khambhat

Tidal basins are highly dynamic environments with a complex behavior that is often disturbed by human activities. Considering that tidal dynamics have a direct impact on surrounding engineering infrastructures, adjacent coastlines, nature environment and socio-economic human activities, it is crucial to know the impact of human interventions on...

Morphodynamics of the Haringvliet ebb-tidal delta: Unravelling the mechanisms behind its morphological evolution

<b>KEY POINTS:</b><br/>• While the formation of the intertidal shoal Hinderplaat was a direct consequence of a human intervention, its degradation was a natural response of the system to frequent hydrodynamic forcing conditions.<br/><br/>• Tidal currents push the Hinderplaat in offshore direction, but this is counteracted by waves: these...

Process-based modelling of the St Lucia Estuary: Morphodynamic response of the inlet due to dredge spoil removal and re-linkage of Mfolozi River

The St Lucia Estuary is Africa’s largest estuarine system and part of the iSimangaliso Wetland Park, which was listed as South Africa’s first World Heritage Site in December 1999. The St Lucia Estuary is connected upstream to Lake St Lucia and downstream it flows into the Indian Ocean. The St Lucia Estuary is located at a wave dominated coast...

The economic risk for inland water transport due to uncertainty in morphodynamic behaviour

River systems are vastly changing environments, not only due to natural process, but also human intervention plays an important role. With the many different river functions at play, large amounts of maintenance budgets are associated with river management. For decision makers it is important to know expected costs or losses and the spread...

Process-based modelling of hydro- and morphodynamics around the Anmok submerged breakwater

The use of the detached offshore submerged breakwater (SBW) for coastal protection has an increasing popularity due to its low aesthetic impact on the natural environment. Submerged breakwaters however have only rarely been adopted and therefore its efficacy remains largely unknown (Ranasinghe et al. 2010). Shoreline erosion has been reported in...

Morphodynamics of the Ameland Bornrif: An analogue for the Sand Engine

The objective of this work is the understanding of the development and possible impacts of the Sand Engine via a possible analogy with the Bornrif morphodynamics. The Sand Engine is the pilot project for a new nourishment technology (the mega nourishment), which consists of nourishing a huge amount of sand at once and let the nature spread it....