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Measurements of dune erosion processes during the RealDune/REFLEX experiments.
Paul van Wiechen1, Jantien Rutten2,3, Sierd de Vries2
1Department of Hydraulic Engineering, Delft University of Technology, Stevinweg 1, 2628, CN, Delft, The Netherlands. P.P.J.vanWiechen@tudelft.nl.
Scientific Data
|April 23, 2024
Summary
This study measured nearshore hydrodynamic and morphodynamic processes during calm, moderate, and storm conditions. Data collected on the Sand Engine will help validate dune erosion models.
Area of Science:
- Coastal geomorphology
- Nearshore hydrodynamics
- Dune erosion processes
Background:
- Coastal dunes are vital natural barriers against storm surges and erosion.
- Understanding nearshore dynamics during storms is crucial for coastal protection.
- The Sand Engine provides a unique natural laboratory for coastal research.
Purpose of the Study:
- To collect comprehensive nearshore hydrodynamic and morphodynamic data.
- To investigate dune erosion processes under various wave and water level conditions.
- To provide a dataset for validating numerical dune erosion models.
Main Methods:
- Field experiment conducted on the Sand Engine, Netherlands (Oct 2021 - Jan 2022).
- Deployment of pressure sensors and velocimeters for hydrodynamic data.
- Bathymetry/topography surveys, optical backscatter sensors, and lidar for morphodynamic data.
Main Results:
- Collected detailed data across calm, moderate, and storm conditions.
- Observed significant erosion of artificial dunes during three major storms.
- Acquired extensive hydrodynamic and morphodynamic datasets.
Conclusions:
- The collected data offer valuable insights into nearshore processes during storm events.
- The dataset is suitable for validating and improving existing dune erosion models.
- Findings contribute to better coastal management and protection strategies.
