Extreme runoff formation in the Krkonoše Mts. in August 2002

Miroslav Tesař, Miloslav Šír, Ľubomír Lichner and Jaroslav Fišák
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Miroslav Tesař: Institute of Hydrodynamics of the ASCR, Praha, Czech Republic
Miloslav Šír: Institute of Hydrodynamics of the ASCR, Praha, Czech Republic
Ľubomír Lichner: Institute of Hydrology SAV, Bratislava, Slovakia
Jaroslav Fišák: Institute of Atmospheric Physics of the ASCR, Praha, Czech Republic

Soil and Water Research, 2008, vol. 3, issue SpecialIssue1, S147-S154

Abstract: The role of the water movement and retention during extreme runoff formation was demonstrated in the Modrý Důl catchment (Krkonoše Mts., Czech Republic). A cyclone, which moved from Hungary to Poland, caused an extreme rainfall (120 mm) and subsequent extreme runoff in August, 2002. The precipitation, discharge, air and soil temperatures, tensiometric pressure, and soil moisture were recorded. The maximum retention capacity of the catchment was evaluated (70 mm). Depending on the actual retention capacity and the precipitation amount, two situations were recorded: (1) the precipitation amount lower than the actual retention capacity where the precipitation was fully absorbed in the catchment and the discharge in to the stream was not influenced by rain, (2) the precipitation amount higher than the actual retention capacity where the precipitation caused a saturation excess of the soil profile, generating extreme outflow into the stream. Neither the soil cover in the catchment or fluvial deposits along the Modrý potok stream were able to retain the extreme rain and inhibit the catastrophic flood.

Keywords: mountain hydrology; runoff formation; extreme rain; soil-water retention (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlswr:v:3:y:2008:i:specialissue1:id:14-2008-swr

DOI: 10.17221/14/2008-SWR

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