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| Titel |
Application of the HBV hydrological model in a flash flood case in Slovenia |
| VerfasserIn |
M. G. Grillakis, I. K. Tsanis, A. G. Koutroulis |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 10, no. 12 ; Nr. 10, no. 12 (2010-12-22), S.2713-2725 |
| Datensatznummer |
250008548
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| Publikation (Nr.) |
 copernicus.org/nhess-10-2713-2010.pdf |
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| Zusammenfassung |
| An atmospheric depression passed over northwest Slovenia on 18 September
2007 producing precipitation that exceeded 300 mm/d and a 100-year return
period runoff in Zelezniki tributary. The resultant flash flood in the study
area, which consisted of five basins, was simulated with the conceptual
distributed hydrological model HBV (Hydrologiska Byråns
Vattenbalansavdelning). The model was calibrated and validated with past
rainfall – runoff events with satisfactory results producing values of Nash
– Sutcliffe coefficient between 0.82 and 0.96. The validated model was
applied to the flash flood case with stream gauge failure, driven by
spatiotemporal precipitation produced by a set of rain gauges and radar
data. The model delivered satisfactory results on three out of five basin
outlets while the other two had stream gauge failure during the event. The
internal basin dynamics of the most affected area in Zelezniki, was
successfully tested in eight of its sub-basins by comparing the peak
discharges with the ones evaluated by the slope-conveyance method during a
detailed intensive post event campaign. The added value of this method is in
the reduced uncertainty in peak discharge estimation and event interpretation
and in an effective flash flood warning system for the study area when it is
combined with radar nowcasts and operational high resolution short range
weather forecast models. |
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