Articles | Volume 24, issue 6
https://doi.org/10.5194/nhess-24-2071-2024
https://doi.org/10.5194/nhess-24-2071-2024
Research article
 | 
24 Jun 2024
Research article |  | 24 Jun 2024

Hyper-resolution flood hazard mapping at the national scale

Günter Blöschl, Andreas Buttinger-Kreuzhuber, Daniel Cornel, Julia Eisl, Michael Hofer, Markus Hollaus, Zsolt Horváth, Jürgen Komma, Artem Konev, Juraj Parajka, Norbert Pfeifer, Andreas Reithofer, José Salinas, Peter Valent, Roman Výleta, Jürgen Waser, Michael H. Wimmer, and Heinz Stiefelmeyer

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Cited articles

Alfieri, L., Salamon, P., Bianchi, A., Neal, J., Bates, P., and Feyen, L.: Advances in pan – European flood hazard mapping, Hydrol. Process., 28, 4067–4077, 2014. 
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Annis, A., Nardi, F., Volpi, E., and Fiori, A.: Quantifying the relative impact of hydrological and hydraulic modelling parameterizations on uncertainty of inundation maps, Hydrol. Sc. J., 65, 507–523, 2020. 
Arcement, G. J. and Schneider, V. R.: Guide for selecting Manning’s roughness coefficients for natural channels and flood plains, U.S. Government Printing Office, https://doi.org/10.3133/wsp2339, 1989. 
Aronica, G., Bates, P. D., and Horritt, M. S.: Assessing the uncertainty in distributed model predictions using observed binary pattern information within GLUE, Hydrol. Process., 16, 2001–2016, https://doi.org/10.1002/hyp.398, 2002. 
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Short summary
A methodology of regional flood hazard mapping is proposed, based on data in Austria, which combines automatic methods with manual interventions to maximise efficiency and to obtain estimation accuracy similar to that of local studies. Flood discharge records from 781 stations are used to estimate flood hazard patterns of a given return period at a resolution of 2 m over a total stream length of 38 000 km. The hazard maps are used for civil protection, risk awareness and insurance purposes.
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