A combined geomorphological and geophysical approach to characterising relict landslide hazard on the Jurassic Escarpments of Great Britain

Boon, David; Chambers, Jonathan; Hobbs, Peter; Kirkham, Matthew; Merritt, A.; Dashwood, Claire; Pennington, Catherine; Wilby, Philip R.

doi:10.1016/j.geomorph.2015.07.005

Cited by 17 publications

(4 citation statements)

References 24 publications

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“…These technologies have transformed the capabilities of engineering geologists, mapping geologists, engineers, and researchers. For the last two decades terrestrial LiDAR scanning (TLS), or equivalent ground-based radar systems, have been available to survey landslides and other geohazards, remotely, allowing accurate Digital Elevation Models (DEM's) of the ground surface to be produced from point clouds (Miller et al 2007;Hobbs et al 2010;Boon et al 2015). Vegetation can be "stripped" from 3D datasets to reveal stunning high-resolution models of the landslide beneath; in many cases, this includes landslides previously undetected and subtle features within and beyond known landslides.…”

Section: The Use Of Uavs On Landslidesmentioning

confidence: 99%

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

Giordan

Adams

Aicardi

et al. 2020

Bull Eng Geol Environ

241

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This paper represents the result of the IAEG C35 Commission "Monitoring methods and approaches in engineering geology applications" workgroup aimed to describe a general overview of unmanned aerial vehicles (UAVs) and their potentiality in several engineering geology applications. The use of UAV has progressively increased in the last decade and nowadays started to be considered a standard research instrument for the acquisition of images and other information on demand over an area of interest. UAV represents a cheap and fast solution for the on-demand acquisition of detailed images of an area of interest and the creation of detailed 3D models and orthophoto. The use of these systems required a good background of data processing and a good drone pilot ability for the management of the flight mission in particular in a complex environment.

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Section: The Use Of Uavs On Landslidesmentioning

confidence: 99%

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

Giordan

Adams

Aicardi

et al. 2020

Bull Eng Geol Environ

241

View full text Add to dashboard Cite

show abstract

“…In this study, the operating characteristics curve (ROC) approach (Brenning, 2005;Bui et al, 2016) was adopted to evaluate the performance of the integrated weighted index model, including the degree of model fit and model predictive capability. The ROC was obtained by calculating the area under the curve (AUC) and the AUC value varied from 0.5 to 1.0 (Umar et al, 2014).…”

Section: Validationsmentioning

confidence: 99%

GIS-based earthquake-triggered-landslide susceptibility mapping with an integrated weighted index model in Jiuzhaigou region of Sichuan Province, China

Zhang

et al. 2019

Nat. Hazards Earth Syst. Sci.

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Abstract. A Mw=6.5 earthquake struck the Jiuzhaigou region of Sichuan Province, China, at 21:19 LT on Tuesday, 8 August 2017, and triggered a large number of landslides. For mitigating the damages of earthquake-triggered landslides to individuals and infrastructures of the earthquake-affected region, a comprehensive landslide susceptibility mapping was attempted with an integrated weighted index model by combining the frequency ratio and the analytical hierarchy process approaches under a GIS-based environment in the heavily earthquake-affected Zhangzha town of the Jiuzhaigou region. For this purpose, a total number of 842 earthquake-triggered landslides were visually interpreted and located from Sentinel-2A images acquired before and after the earthquake at first, and then the recognized landslides were randomly split into two groups to establish the earthquake-triggered landslide inventory, among which 80 % of the landslides were used for training the integrated model and the remaining 20 % for validation. Nine landslide controlling factors were considered including slope, aspect, elevation, lithology, distance from faults, distance from rivers, land use–land cover, normalized difference vegetation index and peak ground acceleration. The frequency ratio was utilized to evaluate the contribution of each landslide controlling factor to landslide occurrence, and the analytical hierarchy process was used to analyse the mutual relationship between landslide controlling factors. Finally, the landslide susceptibility map was produced by using weighted overlay analysis. Furthermore, an area under the curve approach was adopted to comprehensively evaluate the performance of the integrated weighted index model, including the degree of model fit and model predictive capability. The results demonstrated the reliability and feasibility of the integrated weighted index model in earthquake-triggered landslide susceptibility mapping at a regional scale. The generated map can help engineers and decision makers assess and mitigate hazards of the earthquake-triggered landslides to individuals and infrastructures of the earthquake-affected region.

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“…ERT has been largely used in environmental studies [15,16], mine tailing characterisations [17][18][19][20][21][22], landslides [23,24], karstic environments [25], archaeological excavations [26], and so forth. Also, new approaches and techniques have been employed along with ERT (e.g., statistics, geochemistry, time-lapse monitoring) enabling the extraction and inference of more information from the soil electrical response [27,28].…”

Section: Introductionmentioning

confidence: 99%

Assessing an Abandoned Pyrite Cinder Deposit in Southeast Spain with Electrical Resistivity Tomography: A Case Study

Vásconez-Maza,

Martínez-Segura,

Martínez-Pagán

et al. 2024

Minerals

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Industrial activities have historically generated significant quantities of by-products, including pyrite cinders, a residue produced during the synthesis of sulphuric acid. This study presents a multidisciplinary approach to characterise an abandoned pyrite cinder deposit. Combining geophysical (electrical resistivity tomography—ERT), geochemical, and statistical methods, we assess the physicochemical properties of the deposit and its environmental implications. Our findings reveal the presence of heavy metals, with lead (7017.5 mg.kg−1) being the most concentrated element on the surface of the deposit, exceeding local legal thresholds by more than 163 times, posing environmental risks and inhibiting vegetation growth. Subsurface characterisation indicates a decreasing concentration trend of metals with depth, alongside variations in pH and electrical conductivity. Clustering analysis identifies groups of similar behaviours between resistivity, the most abundant heavy metals, and other variables, providing valuable insights into the complex interplay within the deposit. Our study underscores the importance of integrated approaches in assessing and managing hazardous waste sites, with implications for environmental remediation strategies.

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A combined geomorphological and geophysical approach to characterising relict landslide hazard on the Jurassic Escarpments of Great Britain

Cited by 17 publications

References 24 publications

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

GIS-based earthquake-triggered-landslide susceptibility mapping with an integrated weighted index model in Jiuzhaigou region of Sichuan Province, China

Assessing an Abandoned Pyrite Cinder Deposit in Southeast Spain with Electrical Resistivity Tomography: A Case Study

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