Articles | Volume 18, issue 2
https://doi.org/10.5194/nhess-18-687-2018
https://doi.org/10.5194/nhess-18-687-2018
Research article
 | 
02 Mar 2018
Research article |  | 02 Mar 2018

Scale and spatial distribution assessment of rainfall-induced landslides in a catchment with mountain roads

Chih-Ming Tseng, Yie-Ruey Chen, and Szu-Mi Wu

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Revised manuscript not accepted
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Cited articles

Akgün, A., Dag, S., and Bulut, F.: Landslide susceptibility mapping for a landslide prone area (Findikli, NE of Turkey) by likelihood-frequency ratio and weighted linear combination models, Environ. Geol., 54, 1127–1143, https://doi.org/10.1007/s00254-007-0882-8, 2008. 
Ali, A., Huang, J., Lyamin, A. V., Sloan, S. W., and Cassidy, M. J.: Boundary effects of rainfall-induced landslides, Comput. Geotech., 61, 351–354, https://doi.org/10.1016/j.compgeo.2014.05.019, 2014. 
Anbalagan, D.: Landslide hazard evaluation and zonation mapping in mountainous terrain, Eng. Geol., 32, 269–277, https://doi.org/10.1016/0013-7952(92)90053-2, 1992. 
Ayalew, L. and Yamagishi, H.: The application of GIS-based logistic regression for landslide susceptibility mapping in the Kakuda–Yahiko Mountains, Central Japan, Geomorphology, 65, 15–31, https://doi.org/10.1016/j.geomorph.2004.06.010, 2005. 
Ayalew, L., Yamagishi, H., Marui, H., and Kanno, T.: Landslides in Sado Island of Japan: Part II. GIS-based susceptibility mapping with comparisons of results from two methods and verifications, Eng. Geol., 81, 432–445, https://doi.org/10.1016/j.enggeo.2005.08.004, 2005. 
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Short summary
The multivariate evaluation method was applied to establish a landslide susceptibility assessment model along mountains roads. The relationships between the rainfall index, instability index, and landslide occurrence indicate that for a high instability index, even a small rainfall event could trigger a landslide. The instability index thus can effectively reflect landslide susceptibility. The results could serve as a reference for the prevention and mitigation of slope disasters on hillsides.
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