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| Titel |
Temporal variability of subsurface stormflow formation |
| VerfasserIn |
P. M. Kienzler, F. Naef |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 12, no. 1 ; Nr. 12, no. 1 (2008-02-18), S.257-265 |
| Datensatznummer |
250010472
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| Publikation (Nr.) |
 copernicus.org/hess-12-257-2008.pdf |
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| Zusammenfassung |
| Subsurface stormflow (SSF) can play a key role for the runoff generation at
hillslopes. Quantifications of SSF suffer from the limited ability to
predict how SSF is formed at a particular hillslope and how it varies in
time and space. This study concentrates on the temporal variability of SSF
formation. Controlled sprinkling experiments at three experimental slopes
were replicated with varying precipitation intensity and varying antecedent
precipitation. SSF characteristics were observed with hydrometric
measurements and tracer experiments. SSF response was affected in different
ways and to varying degree by changes of precipitation intensity and
antecedent precipitation. The study showed that the influence of antecedent
precipitation on SSF response depends on how SSF is formed at a particular
hillslope. As formation of SSF was hardly influenced by the increase of
precipitation intensity subsurface flow rates were not increased by higher
intensity. However, timing and relevance of subsurface flow response changed
substantially at different precipitation intensities, because saturation and
flow formation occurred above the soil-bedrock interface, but also within
the topsoil depending on precipitation intensity. |
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