Articles | Volume 22, issue 1
https://doi.org/10.5194/nhess-22-187-2022
https://doi.org/10.5194/nhess-22-187-2022
Research article
 | 
28 Jan 2022
Research article |  | 28 Jan 2022

Investigating the interaction of waves and river discharge during compound flooding at Breede Estuary, South Africa

Sunna Kupfer, Sara Santamaria-Aguilar, Lara van Niekerk, Melanie Lück-Vogel, and Athanasios T. Vafeidis

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Latest update: 19 Apr 2024
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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.
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