Response of Coastal Barriers and Freshwater Aquifers to Extreme Storm Surges and Flooding (ReFresh)

• Applicant: Saber Elsayed Abdelaal, Ph.D.
• Subject Area: Hydrogeology, Hydrology, Limnology, Urban Water Management, Water Chemistry, Integrated Water Resources Management
• Term: from 2018 to 2023
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 415209643

• Final Report Year: 2024

Final Report Abstract

In summary, the main objectives of the project were achieved and published either in a journal or presented at international conferences. The outcomes help in understanding the physics of breaching and its numerical modeling as well as the implication of barrier breaching/overtopping for intrusion of seawater into coastal aquifers. The experimental investigations will remain as guides and material for future calibration of numerical models for coastal erosion and breaching (e.g. XBeach) and models for groundwater contamination due to saltwater intrusion (e.g. OpenGeoSys). All data are saved on the servers of LWI and can be shared with the scientific community upon request.

Publications

• Numerical Modelling of Coastal Barriers Response to Extreme Storm Surges. In: Goseberg, Nils Schlurmann, Torsten (Hg.): Coastal Structures. Karlsruhe: Bundesanstalt für Wasserbau
  S.M. Elsayed
  
• Response of Natural Coastal Barriers to Extreme Waves, in Future Paths and Needs in Wave Modelling, Trondheim, Norway, 21‐ 22 October
  S.M. Elsayed & N. Goseberg
  
• ROLE OF SPATIAL VARIABILITY OF SOIL RESISTANCE IN ALONGSHORE VARIABILITY OF COASTAL BARRIERS RESPONSE TO SUPERSTORM SURGES. Coastal Engineering Proceedings(36v), 41.
  Elsayed, Saber M. & Goseberg, Nils
  
• Wave-resolving Hydro-morphological Modelling of Barred Beaches. 15. FZK Colloquium, Hannover, Germany
  S.M.Elsayed, R. Gijsman, T. Schlurmann & N. Goseberg
  
• Improving soil properties of natural coastal barriers as a natural-based solution to mitigate coastal erosion and flooding during storm surges. EXCEED-SWINDON International Network Webinar
  S.M. Elsayed
  
• Response of dune systems of alongshore varying permeability to diverse wave properties and surge levels. In Coastal Dynamics Conference.
  S.M.Elsayed, T. Quiros Simon & N. Goseberg
  
• Experimental wave-driven erosion modeling of natural Coastal barriers of varying soil properties: Role of reduced soil permeability in enhancing barriers resilience during storm surges. Ocean Sciences Meeting
  S.M. Elsayed, L. Ahrenbeck & N. Goseberg
  
• Nonhydrostatic Numerical Modeling of Fixed and Mobile Barred Beaches: Limitations of Depth-Averaged Wave Resolving Models around Sandbars. Journal of Waterway, Port, Coastal, and Ocean Engineering, 148(1).
  Elsayed, Saber M.; Gijsman, Rik; Schlurmann, Torsten & Goseberg, Nils