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| Titel |
Debris flow run off simulation and verification ‒ case study of Chen-You-Lan Watershed, Taiwan |
| VerfasserIn |
M.-L. Lin, K.-L. Wang, J.-J. Huang |
| 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 ; 5, no. 3 ; Nr. 5, no. 3 (2005-06-02), S.439-445 |
| Datensatznummer |
250002492
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| Publikation (Nr.) |
 copernicus.org/nhess-5-439-2005.pdf |
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| Zusammenfassung |
| In 1996 typhoon Herb struck the central Taiwan area, causing severe debris
flow in many subwatersheds of the Chen-You-Lan river watershed. More severe
cases of debris flow occurred following Chi-Chi earthquake, 1999. In order
to identify the potentially affected area and its severity, the ability to
simulate the flow route of debris is desirable. In this research numerical
simulation of debris flow deposition process had been carried out using
FLO-2D adopting Chui-Sue river watershed as the study area. Sensitivity
study of parameters used in the numerical model was conducted and
adjustments were made empirically. The micro-geomorphic database of Chui-Sue
river watershed was generated and analyzed to understand the terrain
variations caused by the debris flow. Based on the micro-geomorphic
analysis, the debris deposition in the Chui-Sue river watershed in the
downstream area, and the position and volume of debris deposition were
determined. The simulated results appeared to agree fairly well with the
results of micro-geomorphic study of the area when not affected by other
inflow rivers, and the trends of debris distribution in the study area
appeared to be fairly consistent. |
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