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
Optimizing and validating the Gravitational Process Path model for regional debris-flow runout modelling
Jason Goetz,Robin Kohrs,Eric Parra Hormazábal,Manuel Bustos Morales,María Belén Araneda Riquelme,Cristián Henríquez,Alexander Brenning +6 more
TL;DR: This research focuses on developing a novel approach for optimizing runout models for regional susceptibility modelling, with a case study in the upper Maipo River basin in the Andes of Santiago, Chile, and proposes a two-stage optimization approach for automatically selecting parameters for estimating runout path and distance.
Journal ArticleDOI
The susceptibility analysis of landslide using bivariate and multivariate modeling techniques in western Algeria: case of Fergoug watershed (Beni-Chougrane Mountains)
Zaagane Mansour,Thiery Yanick,Safa Aissa,Refas Soraya,Hamimed Abderahmane,Abbache Abdelkader,Khaldi Abdelkader,Souidi Zahera,Mouassa Souad,Moussa Kacem +9 more
TL;DR: In this paper, a landslide sensitivity map has been realized using different models: (i) the frequency ratio (FR), (ii) the linear multiple regressions (MLR), and (iii) the information value model (IVM).
Journal ArticleDOI
Introduce a framework for landslide risk assessment using geospatial analysis: a case study from Kegalle District, Sri Lanka
E. N. C. Perera,D.T. Jayawardana,Manjula Ranagalage,Manjula Ranagalage,Dmslb Dissanayake,H. M. D. S. Wijenayaka +5 more
TL;DR: In this article, the authors attempted to create a standardized landslide risk assessment framework, combining susceptibility and vulnerability, by using spatial multi-criteria evaluation method and entropy method under geographical information system.
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.
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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).