Journal ArticleDOI
Landslide hazard and risk zonation—why is it still so difficult?
TLDR
In this paper, the authors review the problem of attempting to quantify landslide risk over larger areas, discussing a number of difficulties related to the generation of landslide inventory maps including information on date, type and volume of the landslide, the determination of its spatial and temporal probability, the modelling of runout and the assessment of landslide vulnerability.Abstract:
The quantification of risk has gained importance in many disciplines, including landslide studies. The literature on landslide risk assessment illustrates the developments which have taken place in the last decade and that quantitative risk assessment is feasible for geotechnical engineering on a site investigation scale and the evaluation of linear features (e.g., pipelines, roads). However, the generation of quantitative risk zonation maps for regulatory and development planning by local authorities still seems a step too far, especially at medium scales (1:10,000–1:50,000). This paper reviews the problem of attempting to quantify landslide risk over larger areas, discussing a number of difficulties related to the generation of landslide inventory maps including information on date, type and volume of the landslide, the determination of its spatial and temporal probability, the modelling of runout and the assessment of landslide vulnerability. An overview of recent developments in the different approaches to landslide hazard and risk zonation at medium scales is given. The paper concludes with a number of new advances and challenges for the future, such as the use of very detailed topographic data, the generation of event-based landslide inventory maps, the use of these maps in spatial-temporal probabilistic modelling and the use of land use and climatic change scenarios in deterministic modelling.read more
Citations
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Journal ArticleDOI
A Comparative Study of Landslide Susceptibility Mapping Using SVM and PSO-SVM Models Based on Grid and Slope Units
Shuai Zhao,Zhou Zhao +1 more
TL;DR: Wang et al. as mentioned in this paper applied and compared the rationality of landslide susceptibility maps using support vector machine (SVM) and particle swarm optimization coupled with SVM models in Lueyang County, China, enhance the connection with the natural terrain, and analyze the application of grid units and slope units.
Journal ArticleDOI
Study of regional monsoonal effects on landslide hazard zonation in Cameron Highlands, Malaysia
TL;DR: In this article, the authors reported the effect of monsoonal-related geospatial data in landslide hazard modeling in Cameron Highlands, Malaysia, using Geographic Information System (GIS).
Journal ArticleDOI
Landslide quantitative risk analysis of buildings at the municipal scale based on a rainfall triggering scenario
TL;DR: In this article, a landslide quantitative risk analysis is applied the municipality of Santa Marta de Penaguiao (N of Portugal) to evaluate the risk to which the buildings are exposed, using a vector data model in GIS.
Journal ArticleDOI
Including root reinforcement variability in a probabilistic 3D stability model
Dissertation
Physically based dynamic modelling of the effects of land use changes on shallow landslide initiation in the Western Ghats, Kerala, India
TL;DR: In this paper, a physically-based spatially distributed shallow landslide initiation model named STARWARS (Storage and Redistribution of Water on Agricultural and Revegetated Slopes) + ProbstAB (Probability of Stability) model was identified as the most suitable for this research.
References
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Journal ArticleDOI
Landslide hazard evaluation: a review of current techniques and their application in a multi-scale study, Central Italy
TL;DR: In this paper, the authors used geomorphological information to assess areas at high landslide hazard, and help mitigate the associated risk, and found that despite the operational and conceptual limitations, landslide hazard assessment may indeed constitute a suitable, cost-effective aid to land-use planning.
Journal ArticleDOI
The shuttle radar topography mission—a new class of digital elevation models acquired by spaceborne radar
TL;DR: For 11 days in February 2000, the Shuttle Radar Topography Mission (SRTM) successfully recorded by interferometric synthetic aperture radar (InSAR) data of the entire land mass of the earth between 60°N and 57°S.
Book
Geographic Information Systems for Geoscientists: Modelling with GIS
TL;DR: An introduction to GIS and tools for map analysis: map pairs, spatial data models, and more.
Journal ArticleDOI
The Rainfall Intensity - Duration Control of Shallow Landslides and Debris Flows
TL;DR: In this article, rainfall intensities and durations associated with shallow landsliding and debris flow activity suggests a limiting threshold for this type of slope instability, and the limit is defined based on the rainfall intensity and duration.
Book
Landslide hazard zonation: A review of principles and practice
TL;DR: In this paper, the authors give the definitions and principles of landslides, and identify causative conditions and processes (inherent or basic conditions, geology, geomorphology, hydrologic conditions and climate, vegetation, factors that change stress conditions and strength of materials).