Articles | Volume 23, issue 12
https://doi.org/10.5194/nhess-23-3685-2023
https://doi.org/10.5194/nhess-23-3685-2023
Research article
 | 
30 Nov 2023
Research article |  | 30 Nov 2023

Bayesian extreme value analysis of extreme sea levels along the German Baltic coast using historical information

Leigh Richard MacPherson, Arne Arns, Svenja Fischer, Fernando Javier Méndez, and Jürgen Jensen

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Cited articles

Arns, A., Wahl, T., Haigh, I. D., Jensen, J., and Pattiaratchi, C.: Estimating Extreme Water Level Probabilities: A Comparison of the Direct Methods and Recommendations for Best Practise, Coast. Eng., 81, 51–66, https://doi.org/10.1016/j.coastaleng.2013.07.003, 2013. a, b, c
Arns, A., Wahl, T., Haigh, I. D., and Jensen, J.: Determining Return Water Levels at Ungauged Coastal Sites: A Case Study for Northern Germany, Ocean Dynam., 65, 539–554, https://doi.org/10.1007/s10236-015-0814-1, 2015. a
Bardet, L., Duluc, C.-M., Rebour, V., and L'Her, J.: Regional Frequency Analysis of Extreme Storm Surges along the French Coast, Nat. Hazards Earth Syst. Sci., 11, 1627–1639, https://doi.org/10.5194/nhess-11-1627-2011, 2011. a
Benito, G., Lang, M., Barriendos, M., Llasat, M. C., Francés, F., Ouarda, T., Thorndycraft, V., Enzel, Y., Bardossy, A., Coeur, D., and Bobée, B.: Use of Systematic, Palaeoflood and Historical Data for the Improvement of Flood Risk Estimation. Review of Scientific Methods, Nat. Hazards, 31, 623–643, https://doi.org/10.1023/B:NHAZ.0000024895.48463.eb, 2004. a, b
Bork, I., Rosenhagen, G., and Müller-Navarra, S.: Modelling the Extreme Storm Surge in the Western Baltic Sea on November 13, 1872, Revisited, Küste, 92, 3, https://doi.org/10.18171/1.092103, 2022. a
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Efficient adaptation planning for coastal flooding caused by extreme sea levels requires accurate assessments of the underlying hazard. Tide-gauge data alone are often insufficient for providing the desired accuracy but may be supplemented with historical information. We estimate extreme sea levels along the German Baltic coast and show that relying solely on tide-gauge data leads to underestimations. Incorporating historical information leads to improved estimates with reduced uncertainties.
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