Journal cover Journal topic
Hydrology and Earth System Sciences An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/hess-2016-498
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Research article
27 Oct 2016
Review status
A revision of this discussion paper was accepted for the journal Hydrology and Earth System Sciences (HESS) and is expected to appear here in due course.
Evaluation of floods in Western/Central Europe: the role of index design
Blanka Gvoždíková1 and Miloslav Müller1,2 1Faculty of Science, Charles University, Prague, Czech Republic
2Institute of Atmospheric Physics AS CR, Prague, Czech Republic
Abstract. This paper addresses the identification and evaluation of extreme flood events in the transitional area between Western and Central Europe in the period 1950–2010. Floods are evaluated in terms of several variants on an extremity index that combines discharge values with the spatial extent of flooding. The indices differ in two main aspects: the weight of the area parameter and the threshold of the considered maximum discharges. This study demonstrates that extremity indices are not highly sensitive to the changes in the design of the area parameter. On the contrary, using the index with a higher flood discharge limit changes the floods' rankings significantly. Due to a positive agreement with high severity events, we recommend using the index with a higher discharge limit.

In general, we detected an increase in the proportion of warm half-year floods when using a higher discharge limit. Nevertheless, cold half-year floods still predominate in the lists because the affected area is usually large in the case of these floods. This study demonstrates the increasing representation of warm half-year floods from the northwest to the southeast.


Citation: Gvoždíková, B. and Müller, M.: Evaluation of floods in Western/Central Europe: the role of index design, Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2016-498, in review, 2016.
Blanka Gvoždíková and Miloslav Müller
Blanka Gvoždíková and Miloslav Müller

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Short summary
This paper addresses the evaluation of extreme floods in Western/Central Europe in terms of different index variants. The results of index variants are compared and utilization of one index variant is recommended for further evaluation of floods. Due to a positive agreement with high severity events, we prefer using the index with a higher discharge limit.
This paper addresses the evaluation of extreme floods in Western/Central Europe in terms of...
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