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| Titel |
A combined field and numerical approach to investigate flow processes in natural macroporous soils under extreme precipitation |
| VerfasserIn |
A. O. Faeh, S. Scherrer, 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 ; 1, no. 4 ; Nr. 1, no. 4, S.787-800 |
| Datensatznummer |
250000234
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| Publikation (Nr.) |
 copernicus.org/hess-1-787-1997.pdf |
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| Zusammenfassung |
| A procedure involving simultaneous experimental and
numerical research is described for the purposes of understanding the mechanisms involved when extreme precipitation
is transformed to flood stream discharge. It is shown that experiments and model applications
by themselves are not sufficient for process identification, but that their combined
application provides considerable insight into the subsurface flow processes. The proposed
approach is unconventional in that a numerical model, based on stringent continuity and momentum
criteria, is used as a tool for process identification only. Unlike other studies, it is not intended
to demonstrate the applicability of the utilised model for general hydrological applications,
or to provide evidence of the suitability of particular model simplifications. Rather, different
and sometimes conflicting model realisations are used to examine the plausibility of flow processes
which may occur on natural hill slopes. Hereby, small scale effects such as those relating
to the mechanisms of water entry into the macropores, and the movement of water to the surrounding
matrix are identified from the results of well instrumented field experiments. |
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