1. Spatial and temporal change in landslide hazard by future climate change scenarios using probabilistic-based frequency ratio model
- Author
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Lee Moung-Jin, Lee Saro, Won Joong-Sun, Song Won-Kyong, and Park Inhye
- Subjects
Hydrology ,Geographic information system ,business.industry ,Spatial database ,Geography, Planning and Development ,Frequency ratio ,Probabilistic logic ,Landslide ,Land cover ,Hazard map ,Hazard ,Geography ,Physical geography ,business ,Water Science and Technology - Abstract
The aims of this study were to apply, verify and compare a frequency ratio model for landslide hazards, considering future climate change and using a geographic information system in Inje, Korea. Data for the future climate change scenario (A1B), topography, soil, forest, land cover and geology were collected, processed and compiled in a spatial database. The probability of landslides in the study area in target years in the future was then calculated assuming that landslides are triggered by a daily rainfall threshold. Landslide hazard maps were developed for the two study areas, and the frequency ratio for one area was applied to the other area as a cross-check of methodological validity. Verification results for the target years in the future were 82.32–84.69%. The study results, showing landslide hazards in future years, can be used to help develop landslide management plans.
- Published
- 2013