Comprehensive investigation of existing designs of the DuneFront Demonstrators: DuneFront Project Deliverable 7.1
Adeli, A.; Gruwez, V.; Troch, P.; Hofland, B.; Tissier, M.; Bonte, D. (2024). Comprehensive investigation of existing designs of the DuneFront Demonstrators: DuneFront Project Deliverable 7.1. Version 1.0. Ghent University: Ghent. XI, 74 pp. |  |
| Available in | Authors | | Document type: Project report
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| Project | Top | Authors | - Demonstrating the value of integrated dunes-dike principles as frontier hybrid blue –grey Nature-Based Solutions, more
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| Authors | | Top | - Adeli, A.
- Gruwez, V., more
- Troch, P., more
| - Hofland, B.
- Tissier, M.
- Bonte, D., more
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| Abstract | This report is the first deliverable of work package 7 (D7.1 Demonstrator Design Methodologies) in the DuneFront project. DuneFront focuses on better understanding dune-dike hybrid Nature-based Solutions (DD-hybrid NbS) to create sustainable, inclusive, and visually appealing coastal management infrastructure. These innovative solutions aim to integrate biodiversity while addressing significant socio-economic challenges along Europe’s densely populated coasts. By studying existing hybrid NbS, this report lays the groundwork for better understanding the design aspects of these systems.
The primary objective of this report is to evaluate existing Demonstrators of DD-hybrid NbS across four European sea or ocean basins—Mediterranean, Atlantic, North Sea, and Baltic—documenting and comparing their designs. This evaluation involves reviewing, cataloguing, and comparing design methods from selected Demonstrators, aiming to determine the functionality and effectiveness of these hybrid systems in coastal protection.
The DuneFront project considers 12 Demonstrators across six countries—Portugal, France, Belgium, the Netherlands, Germany, and Sweden—with diverse functionalities and environmental conditions. From these 12 Demonstrators, seven Demonstrators were selected (based on the dike contributing to the coastal protection functioning of the DD-hybrid NbS) for detailed analysis: Dunkerque, Sainte-Marie La Mer, Living Lab Raversijde, Middelkerke, Katwijk, Sankt Peter-Ording, and Ystad. This report provides a comprehensive overview of their design methodologies, stability measures, and monitoring and maintenance practices.
The analysis reveals a range of methodologies, from basic, non-specific approaches to highly detailed and adaptive methods. Additionally, the report describes in detail the varied methodologies used for modelling, design, and dike stability. These differences emphasize the importance of selecting appropriate models and methodologies based on local conditions. Monitoring and maintenance methods range from comprehensive plans with advanced technologies like DTMs and LIDAR, to simpler surveys and beach nourishment.
A critical knowledge gap identified is the ad-hoc nature or absence of methodologies for designing dune and dike systems simultaneously. Addressing questions derived from this knowledge gap regarding dune erosion, adaptive measures, probabilistic design aspects, spatial relationships between dunes and dikes, and effects of setup and infragravity waves will transform these gaps into actionable knowledge. These insights will contribute significantly to future development and optimization of DD-Hybrid NbS systems.
In general, this report provides a comprehensive overview of the varied methodologies employed in designing of selected DD-Hybrid NbS, identifying key knowledge gaps and setting a foundation for future research and development. |
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