Potential impacts of climate change on landslides occurrence in Canada

Cloutier, Catherine; Locat, Jacques; Geertsema, Marten; Jakob, Matthias; Schnorbus, M.

doi:10.1201/9781315387789-3

Cited by 16 publications

(13 citation statements)

References 45 publications

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“…Industry standard rockfall modelling software packages such as RockyFor3D (Dorren, 2016) still use relatively simple geometric shapes (rectangles, ellipsoids, spheres). Therefore, if we consider the simulation of a cuboid or rectangular prism, where the volume can be defined as a product of the three axes, the measured dimensions directly influence the volume of the rockfall being simulated.…”

Section: Discussionmentioning

confidence: 99%

“…Ultimately, temporal trends can be identified from an inventory, which supports a more systematic mapping of hazards in the region to help mitigate future losses. It may also be useful to discern any long-term changes that are projected, as extreme weather events are expected to increase in both frequency and magnitude within a changing climate (Cloutier et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Three-dimensional rockfall shape back analysis: methods and implications

Bonneau

Hutchinson

DiFrancesco

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Abstract. Rockfall is a complex natural process that can present risks to the effective operation of infrastructure in mountainous terrain. Remote sensing tools and techniques are rapidly becoming the state of the practice in the characterization, monitoring and management of these geohazards. The aim of this study is to address the methods and implications of how the dimensions of three-dimensional rockfall objects, derived from sequential terrestrial laser scans (TLSs), are measured. Previous approaches are reviewed, and two new methods are introduced in an attempt to standardize the process. The approaches are applied to a set of synthetic rockfall objects generated in the open-source software package Blender. Fifty rockfall events derived from sequential TLS monitoring in the White Canyon, British Columbia, Canada, are used to demonstrate the application of the proposed algorithms. This study illustrates that the method used to calculate the rockfall dimensions has a significant impact on how the shape of a rockfall object is classified. This has implications for rockfall modelling as the block shape is known to influence rockfall runout.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Three-dimensional rockfall shape back analysis: methods and implications

Bonneau

Hutchinson

DiFrancesco

et al. 2019

Nat. Hazards Earth Syst. Sci.

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“…Gariano and Guzzetti (2016) presented a map displaying projected future occurrences of four landslide types, suggesting that the frequency of debris flow and shallow landslides would increase in many parts of the world. Cloutier et al (2016) reported that in Canada, warming would impact permafrost, glaciers, and ice caps, leading to landslides. In a CGE-based analysis, the impact of fluvial floods on GDP was negligible (Takakura et al 2019).…”

Section: Natural Disastersmentioning

confidence: 99%

Identifying key processes and sectors in the interaction between climate and socio-economic systems: a review toward integrating Earth–human systems

Tachiiri

Matsumoto

2021

Prog Earth Planet Sci

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For the purpose of identifying the key processes and sectors involved in the interaction between Earth and socio-economic systems, we review existing studies on those processes/sectors through which the climate impacts socio-economic systems, which then in turn affect the climate. For each process/sector, we review the direct physical and ecological impacts and, if available, the impact on the economy and greenhouse gas (GHG) emissions. Based on this review, land sector is identified as the process with the most significant impact on GHG emissions, while labor productivity has the largest impact on the gross domestic product (GDP). On the other hand, the energy sector, due to the increase in the demand for cooling, will have increased GHG emissions. Water resources, sea level rise, natural disasters, ecosystem services, and diseases also show the potential to have a significant influence on GHG emissions and GDP, although for most of these, a large effect was reported only by a limited number of studies. As a result, more studies are required to verify their influence in terms of feedbacks to the climate. In addition, although the economic damage arising from migration and conflict is uncertain, they should be treated as potentially damaging processes.

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“…The risk associated with landslides and slope instability has increased over the past several decades due to expanded development of mountainous areas to accommodate population and tourism growth [1] as well as increased frequency of extreme weather events resulting from ongoing climate change [2,3]. This increased risk has called attention to the importance of comprehensive geological investigations to forecast the evolution of unstable slopes, identify potential failure mechanisms, and quantify the hazard and risk associated with the instability.…”

Section: Introductionmentioning

confidence: 99%

A Robust SAR Speckle Tracking Workflow for Measuring and Interpreting the 3D Surface Displacement of Landslides

et al. 2021

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We present a workflow for investigating large, slow-moving landslides which combines the synthetic aperture radar (SAR) technique, GIS post-processing, and airborne laser scanning (ALS), and apply it to Fels landslide in Alaska, US. First, we exploit a speckle tracking (ST) approach to derive the easting, northing, and vertical components of the displacement vectors across the rock slope for two five-year windows, 2010–2015 and 2015–2020. Then, we perform post-processing in a GIS environment to derive displacement magnitude, trend, and plunge maps of the landslide area. Finally, we compare the ST-derived displacement data with structural lineament maps and profiles extracted from the ALS dataset. Relying on remotely sensed data, we estimate that the thickness of the slide mass is more than 100 m and displacements occur through a combination of slumping at the toe and planar sliding in the central and upper slope. Our approach provides information and interpretations that can assist in optimizing and planning fieldwork activities and site investigations at landslides in remote locations.

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Potential impacts of climate change on landslides occurrence in Canada

Cited by 16 publications

References 45 publications

Three-dimensional rockfall shape back analysis: methods and implications

Three-dimensional rockfall shape back analysis: methods and implications

Identifying key processes and sectors in the interaction between climate and socio-economic systems: a review toward integrating Earth–human systems

A Robust SAR Speckle Tracking Workflow for Measuring and Interpreting the 3D Surface Displacement of Landslides

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