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- Title
The influence of rainstorm pattern on shallow landslide.
- Authors
Tsai, Tung-Lin
- Abstract
In this study, the influence of the rainstorm pattern on shallow landslide is examined. The physically-based shallow landslide model is used to conduct this examination with considering four representative rainstorm patterns including uniform, advanced, central, and delayed rainstorms. The results show that in spite of the rainfall duration and the rainfall pattern, the rainstorm with less than the minimum landslide-triggering rainfall amount will not trigger landslide. However, for the rainstorm with greater than the minimum landslide-triggering rainfall amount, the occurrence of landslide significantly depends not only on the rainfall duration but also on the rainfall pattern. Among the four representative rainstorm patterns, the delayed rainstorm has the greatest rainfall duration threshold for landslide occurrence, followed by the central rainstorm, and then the uniform rainstorm. In addition, for each rainstorm pattern, the corresponding rainfall duration threshold for landslide occurrence decreases with the increase of rainfall amount, and seems to be constant for large rainfall amount.
- Subjects
LANDSLIDES; RAINSTORMS; RAINFALL intensity duration frequencies; SIMULATION methods &; models; CAUSATION (Philosophy); UNIFORMITY of nature; PATTERN formation (Physical sciences)
- Publication
Environmental Geology, 2007, Vol 53, Issue 7, p1563
- ISSN
0943-0105
- Publication type
Article
- DOI
10.1007/s00254-007-0767-x