Simulation of the catastrophic floods caused by extreme rainfall events - Uh river basin case study
2005
Pekarova, P.(Slovak Academy of Sciences, Bratislava (Slovak Republic) Institute of Hydrology | Halmova, D. | Mitkova, V.
The extreme rainfall events in Central and East Europe on August 2002 raise the question, how other basins would respond on such rainfall situations. Such theorization helps us to arrange in advance the necessary activity in the basin to reduce the consequence of the assumed disaster. The aim of the study is to recognize a reaction of the Uh River basin (Slovakia, Ukraine) to the simulated catastrophic rainfall events from August 2002. Two precipitation scenarios, sc1 and sc2, were created. The first of them was based on Augusts precipitation from Ybbs (Austria), the second one was based on precipitation from south Bohemia. The rainfall-runoff model HBV-light was used to simulate average daily discharge. Observed daily precipitation in each August during the period 1990-1999 was replaced by these two scenarios and the daily discharges were simulated in Lekarovce gauging station. Peak discharges were computed from the daily averages according to the empirical relationship. In last step, a selection of the best theoretical distribution function of the annual maximum discharge was done using Qmax data series from the period 1931-2001.
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