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| Titel |
Modelling (flash) floods in a Dutch lowland catchment |
| VerfasserIn |
C. C. Brauer, A. J. Teuling, A. Overeem, Y. van der Velde, P. Hazenberg, P. M. M. Warmerdam, P. Kloosterman, R. Uijlenhoet |
| Konferenz |
EGU General Assembly 2012
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 14 (2012) |
| Datensatznummer |
250061502
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| Zusammenfassung |
| On 26 August 2010 the eastern part of The Netherlands and the bordering part of Germany
were struck by a series of rainfall events. We investigated the unprecedented flash flood
triggered by this exceptionally heavy rainfall event (return period > 1000 years) in the
6.5Â km2 Hupsel Brook catchment, which has been the experimental watershed employed by
Wageningen University since the 1960s. This study improved our understanding of the
dynamics of such lowland flash floods and the results have been published in HESS (Brauer
et al., 2011). During this extreme event some thresholds became apparent that do not
play a role during average conditions and are not incorporated in rainfall-runoff
models.
We present a detailed analysis of this extreme event, focusing on (1) the measured soil
moisture, groundwater and discharge response of the catchment, (2) the thresholds we found,
(3) the manner in which these processes and thresholds are incorporated in some well-known
conceptual hydrological models and (4) how well these models are able to simulate the
rainfall-runoff processes during the 2010 flash flood.
References
Brauer, C. C., Teuling, A.J., Overeem, A., van der Velde, Y., Hazenberg, P.,
Warmerdam, P. M. M and Uijlenhoet, R.: Anatomy of extraordinary rainfall and
flash flood in a Dutch lowland catchment, Hydrol. Earth Syst. Sci., 15, 1991–2005,
2011. |
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