The Use of Remote Sensing Techniques and Runout Analysis for Hazard Assessment of an Unstable Rock Slope at Storhaugen, Manndalen, Norway

2015 ◽  
pp. 329-332
Author(s):  
Freddy X. Yugsi Molina ◽  
Halvor S. S. Bunkholt ◽  
Lene Kristensen ◽  
John Dehls ◽  
Reginald L. Hermanns
Keyword(s):  
Remote Sensing ◽  
Hazard Assessment ◽  
Rock Slope ◽  
Remote Sensing Techniques ◽  
Runout Analysis ◽  
Unstable Rock

Hazard assessment and runout analysis for an unstable rock slope above an industrial site in the Riviera valley, Switzerland

Landslides ◽  
2009 ◽  
Vol 6 (2) ◽  
pp. 111-119 ◽  
Author(s):  
Heike Willenberg ◽  
Erik Eberhardt ◽  
Simon Loew ◽  
Scott McDougall ◽  
Oldrich Hungr
Keyword(s):  
Hazard Assessment ◽  
Rock Slope ◽  
Industrial Site ◽  
Runout Analysis ◽  
Unstable Rock

Geologic Hazard Assessment of Slopeland Villages Using Remote Sensing Techniques

2015 ◽  
Vol 764-765 ◽  
pp. 1095-1099
Author(s):  
Shu Rong Yang ◽  
Yi Lung Yeh
Keyword(s):  
Remote Sensing ◽  
Hazard Assessment ◽  
Image Interpretation ◽  
Remote Sensing Image ◽  
Assessment Method ◽  
Geologic Hazard ◽  
Susceptibility Maps ◽  
Hazard Zone ◽  
Geologic Maps ◽  
Remote Sensing Techniques

This study focuses on 53 villages located in the slopelands of Pingtung County. Remote sensing image interpretation techniques are used to identify geologic hazard areas. GIS map overlay analysis of environmental geologic maps, landslide susceptibility maps and potential debris flow torrent maps provided by local and regional governments are used to further interpret and correctly identify the extent of the geologic hazard zone. This study successfully combines both GIS and GPS techniques, and according to data analysis results, constructs a slopeland village geologic hazard assessment method.

Remote sensing based assessment of hazards from glacier lake outbursts: a case study in the Swiss Alps

2002 ◽  
Vol 39 (2) ◽  
pp. 316-330 ◽  
Author(s):  
Christian Huggel ◽  
Andreas Kääb ◽  
Wilfried Haeberli ◽  
Philippe Teysseire ◽  
Frank Paul
Keyword(s):  
Remote Sensing ◽  
Hazard Assessment ◽  
Swiss Alps ◽  
High Mountain ◽  
Mountain Areas ◽  
Runout Distance ◽  
Hazard Potential ◽  
Empirical Relations ◽  
Scale Levels ◽  
Remote Sensing Techniques

Glacier lakes are a common phenomenon in high mountain areas. Outbursts from glacier lakes have repeatedly caused the loss of human lives as well as severe damage to local infrastructure. In several high mountain ranges around the world, a grave uncertainty about the hazard potential of glacier lakes still exists, especially with respect to the effects of accelerating rates of glacier retreat as a consequence of atmospheric warming. Area-wide detection and modeling of glacier lake hazard potentials is, therefore, a major challenge. In this study, an approach integrating three scale levels allows for the progressive focus on critical glacier lakes. Remote sensing methods for application in glacier lake hazard assessment are presented, and include channel indexing, data fusion, and change detection. Each method matches the requirements of a certain scale level. For estimating potential disaster amplitudes, assessments must be made of maximum discharge and runout distance of outbursts floods and debris flows. Existing empirical relations are evaluated and complementary ones as derived from available data are proposed. Tests with observations from a recent outburst event from a moraine-dammed lake in the Swiss Alps show the basic applicability of the proposed techniques and the usefulness of empirical relations for first hazard assessments. In particular, the observed runout distance of the debris flow resulting from the outburst does not exceed the empirically estimated maximum runout distance. A list of decision criteria and related remote sensing techniques are discussed in conclusion. Such a list is an essential tool for evaluating the hazard potential of a lake. A systematic application of remote sensing based methods for glacier lake hazard assessment is recommended.Key words: glacier lake outburst, hazard potential, remote sensing, empirical parameters.

scholarly journals Comparison of Remote Sensing Techniques for Geostructural Analysis and Cliff Monitoring in Coastal Areas of High Tourist Attraction: The Case Study of Polignano a Mare (Southern Italy)

2021 ◽  
Vol 13 (24) ◽  
pp. 5045
Author(s):  
Lidia Loiotine ◽  
Gioacchino Francesco Andriani ◽  
Michel Jaboyedoff ◽  
Mario Parise ◽  
Marc-Henri Derron
Keyword(s):  
Remote Sensing ◽  
Rock Mass ◽  
Urban Areas ◽  
Laser Scanning ◽  
Rock Slope ◽  
Mitigation Measures ◽  
Tourist Attraction ◽  
Field Surveys ◽  
Rock Mass Characterization ◽  
Remote Sensing Techniques

Rock slope failures in urban areas may represent a serious hazard for human life, as well as private and public property, even on the occasion of sporadic episodes. Prevention and mitigation measures indispensably require a proper rock mass characterization, which is often achieved by means of time-consuming, costly and dangerous field surveys. In the last decades, remote sensing devices such as high-resolution digital cameras, laser scanners and drones have been widely used as supplementary techniques for rock slope analysis and monitoring, especially in poorly accessible areas, or in sites of large extension. Although several methods for rock mass characterization by means of remote sensing techniques have been reported in specific studies, there are very few contributions that focused on comparing the different methods in an attempt to establish their advantages and limitations. With this study, we performed digital photogrammetry, Terrestrial Laser Scanning and Unmanned Aerial Vehicle surveys on a cliff located in a popular tourist attraction site, characterized by complex geological and geomorphological settings, as well as by disturbance elements such as vegetation and human activities. For each point cloud, we applied geostructural analysis by means of semi-automatic methods, and then compared multi-temporal acquisitions for cliff monitoring. By quantitative comparison of the results and validation by means of conventional geostructural field surveys, the pros and cons of each method were outlined in attempt to depict the conditions and goals the different techniques seem to be more suitable for.

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