Wildfire-related debris-flow generation through episodic progressive sediment-bulking processes, western USA
By: S.H. Cannon, J.E. Gartner, C. Parrett, and M. Parise
Edited by: Rickenmann D.Chen C.L.
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Abstract
Debris-flow initiation processes on hillslopes recently burned by wildfire differ from those generally recognized on unburned, vegetated hillslopes. These differences result from fire-induced changes in the hydrologic response to rainfall events. In this study, detailed field and aerial photographic mapping, observations, and measurements of debris-flow events from three sites in the western U.S. are used to describe and evaluate the process of episodic progressive sediment bulking of storm runoff that leads to the generation of post-wildfire debris flows. Our data demonstrate the effects of material credibility, sediment availability on hillslopes and in channels, the degree of channel confinement, the formation of continuous channel incision, and the upslope contributing area and its gradient on the generation of flows and the magnitude of the response are demonstrated. ?? 2003 Millpress.
Suggested Citation
Cannon, S., Gartner, J., Parrett, C., Parise, M., 2003, Wildfire-related debris-flow generation through episodic progressive sediment-bulking processes, western USA, in International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings, v. 1, Davos, 10 September 2003 through 12 September 2003, p. 71-82.
| Publication type | Conference Paper |
|---|---|
| Publication Subtype | Conference Paper |
| Title | Wildfire-related debris-flow generation through episodic progressive sediment-bulking processes, western USA |
| Volume | 1 |
| Year Published | 2003 |
| Language | English |
| Larger Work Title | International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment, Proceedings |
| First page | 71 |
| Last page | 82 |
| Conference Title | 3rd International Conference on Debris-Flow Hazards Mitigation: Mechanics, Prediction, and Assessment |
| Conference Location | Davos |
| Conference Date | 10 September 2003 through 12 September 2003 |