Articles | Volume 25, issue 6
https://doi.org/10.5194/nhess-25-2075-2025
https://doi.org/10.5194/nhess-25-2075-2025
Brief communication
 | 
25 Jun 2025
Brief communication |  | 25 Jun 2025

Brief communication: Bridging the data gap – a call to enhance the representation of global coastal flood protection

Nicole van Maanen, Joël J.-F. G. De Plaen, Timothy Tiggeloven, Maria Luisa Colmenares, Philip J. Ward, Paolo Scussolini, and Elco Koks

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Cited articles

Almar, R., Ranasinghe, R., Bergsma, E. W. J., Diaz, H., Melet, A., Papa, F., Vousdoukas, M., Athanasiou, P., Dada, O., Almeida, L. P., and Kestenare, E.: A global analysis of extreme coastal water levels with implications for potential coastal overtopping, Nat. Commun., 12, 3775, https://doi.org/10.1038/s41467-021-24008-9, 2021. 
Bevacqua, E., Vousdoukas, M. I., Zappa, G., Hodges, K., Shepherd, T. G., Maraun, D., Mentaschi, L., and Feyen, L.: More meteorological events that drive compound coastal flooding are projected under climate change, Commun. Earth Environ., 1, 47, https://doi.org/10.1038/s43247-020-00044-z, 2020. 
Boulange, J., Hanasaki, N., Yamazaki, D., and Pokhrel, Y.: Role of dams in reducing global flood exposure under climate change, Nat. Commun., 12, 417, https://doi.org/10.1038/s41467-020-20704-0, 2021. 
Caretta, A. M. M. A., Arfanuzzaman, R. B. M., Morgan, S. M. R., and Kumar, M.: Water, in: Climate Change 2022: Impacts, Adaptation, and Vulnerability. Contribution of Working Group II to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, https://doi.org/10.1017/9781009325844, 2022. 
Chen, J., Shi, X., Gu, L., Wu, G., Su, T., Wang, H.-M., Kim, J.-S., Zhang, L., and Xiong, L.: Impacts of climate warming on global floods and their implication to current flood defense standards, J. Hydrol., 618, 129236, https://doi.org/10.1016/j.jhydrol.2023.129236, 2023. 
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Short summary
Understanding coastal flood protection is vital for assessing risks from natural disasters and climate change. However, current global data on coastal flood protection are limited and based on simplified assumptions, leading to potential uncertainties in risk estimates. As a step in this direction, we propose a comprehensive dataset, COASTtal flood PROtection Standards within EUrope (COASTPROS-EU), which compiles coastal flood protection standards in Europe.
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