Temporal variability of subsurface stormflow formation

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 format...

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Main Authors: P. M. Kienzler, F. Naef
Format: Article
Language:English
Published: Copernicus Publications 2008-02-01
Series:Hydrology and Earth System Sciences
Online Access:http://www.hydrol-earth-syst-sci.net/12/257/2008/hess-12-257-2008.pdf
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spelling doaj-79d1cacde087448d96bdab1a753041f92020-11-24T21:29:43ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382008-02-01121257265Temporal variability of subsurface stormflow formationP. M. KienzlerF. NaefSubsurface 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. http://www.hydrol-earth-syst-sci.net/12/257/2008/hess-12-257-2008.pdf
collection DOAJ
language English
format Article
sources DOAJ
author P. M. Kienzler
F. Naef
spellingShingle P. M. Kienzler
F. Naef
Temporal variability of subsurface stormflow formation
Hydrology and Earth System Sciences
author_facet P. M. Kienzler
F. Naef
author_sort P. M. Kienzler
title Temporal variability of subsurface stormflow formation
title_short Temporal variability of subsurface stormflow formation
title_full Temporal variability of subsurface stormflow formation
title_fullStr Temporal variability of subsurface stormflow formation
title_full_unstemmed Temporal variability of subsurface stormflow formation
title_sort temporal variability of subsurface stormflow formation
publisher Copernicus Publications
series Hydrology and Earth System Sciences
issn 1027-5606
1607-7938
publishDate 2008-02-01
description 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.
url http://www.hydrol-earth-syst-sci.net/12/257/2008/hess-12-257-2008.pdf
work_keys_str_mv AT pmkienzler temporalvariabilityofsubsurfacestormflowformation
AT fnaef temporalvariabilityofsubsurfacestormflowformation
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