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| Titel |
Debris flow characteristics and relationships in the Central Spanish Pyrenees |
| VerfasserIn |
A. Lorente, S. Beguería, J. C. Bathurst, J. M. García-Ruiz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 3, no. 6 ; Nr. 3, no. 6, S.683-691 |
| Datensatznummer |
250001322
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| Publikation (Nr.) |
 copernicus.org/nhess-3-683-2003.pdf |
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| Zusammenfassung |
| Unconfined debris
flows (i.e. not in incised channels) are one of the most active geomorphic
processes in mountainous areas. Since they can threaten settlements and
infrastructure, statistical and physically based procedures have been
developed to assess the potential for landslide erosion. In this study,
information on debris flow characteristics was obtained in the field to
define the debris flow runout distance and to establish relationships
between debris flow parameters. Such relationships are needed for building
models which allow us to improve the spatial prediction of debris flow
hazards. In general, unconfined debris flows triggered in the Flysch
Sector of the Central Spanish Pyrenees are of the same order of magnitude
as others reported in the literature. The deposition of sediment started
at 17.8°,
and the runout distance represented 60% of the difference in height
between the head of the landslide and the point at which deposition
started. The runout distance was relatively well correlated with the
volume of sediment. |
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