Articles | Volume 22, issue 1
https://doi.org/10.5194/nhess-22-187-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/nhess-22-187-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Investigating the interaction of waves and river discharge during compound flooding at Breede Estuary, South Africa
Sunna Kupfer
CORRESPONDING AUTHOR
Coastal Risks and Sea-Level Rise Research Group, Department of Geography, Christian-Albrechts University, Kiel, Germany
Sara Santamaria-Aguilar
Coastal Risks and Sea-Level Rise Research Group, Department of Geography, Christian-Albrechts University, Kiel, Germany
Lara van Niekerk
Coastal Systems Research Group, Council for Scientific and Industrial Research CSIR, Stellenbosch, 7600, South Africa
Institute for Coastal and Marine Research, Nelson Mandela University, P.O. Box 77000, Port Elizabeth, 6031, South Africa
Melanie Lück-Vogel
Coastal Systems Research Group, Council for Scientific and Industrial Research CSIR, Stellenbosch, 7600, South Africa
Department for Geography and Environmental Studies, Stellenbosch University, Stellenbosch, 7600, South Africa
Athanasios T. Vafeidis
Coastal Risks and Sea-Level Rise Research Group, Department of Geography, Christian-Albrechts University, Kiel, Germany
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- A Hybrid Framework for Rapidly Locating Transition Zones: A Comparison of Event‐ and Response‐Based Return Water Levels in the Suwannee River FL R. Jane et al. 10.1029/2022WR032481
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- Extreme Coastal Water Levels Evolution at Dakar (Senegal, West Africa) C. Cissé et al. 10.3390/cli11010006
- Modelling compound flooding: a case study from Jakarta, Indonesia W. Bennett et al. 10.1007/s11069-023-06001-1
- Consideration of compound drivers and impacts in the disaster risk reduction cycle B. van den Hurk et al. 10.1016/j.isci.2023.106030
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Latest update: 30 Mar 2025
Short summary
In coastal regions, flooding can occur from combined tides, storms, river discharge, and waves. Effects of waves are commonly neglected when assessing flooding, although these may strongly contribute to extreme water levels. We find that waves combined with tides and river discharge at Breede Estuary, South Africa, increased flood extent and depth and caused earlier flooding than when waves were neglected. This highlights the need to consider all major flood drivers in future flood assessments.
In coastal regions, flooding can occur from combined tides, storms, river discharge, and waves....
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