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Article
Author(s)
Thuy Thi Thanh Le and Seiki Kawagoe
Full-Text PDF XML 622 Views
DOI:10.17265/2328-2193/2018.06.002
Affiliation(s)
Faculty of Symbiotic Systems Science, Fukushima University, Kanayagawa 1, Fukushima City, 960-1296 Fukushima, Japan
ABSTRACT
This paper aims to evaluate the probability of landslide hazards using a
physical model (TRIGRS: Transient Rainfall Infiltration and Grid-Based Region
Slope-Stability) for a regional scale considering the variations of a
triggering rainfall condition and land-cover under the climate change. There
are certain uncertainties raising from the soil properties and soil
depth determination, assumption of groundwater, as well as the same root
cohesion for all tree cover in the forest-related region. However, the
application of TRIGRS model in a regional scale would provide important
references for the distribution of landslide prone area regarding scenarios
about changes of weather condition and land cover situation. It thus would
support local authorities in obtaining more adequate land planning strategies
in a river basin to mitigate potential hazard from the slope failure issue.
KEYWORDS
Climate change risk, extreme precipitation event, land use change, scenario, the factor of safety (Fs).
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