LiDAR ; Erosion; Structural geology; Photogrammetry; Reservoir; Remote Sensing; 3D geology; Rockfall; Thermal imaging
Guerin Antoine, Jaboyedoff Michel, Collins Brian D., Stock Greg M., Derron Marc-Henri, Abellán Antonio, Matasci Battista (2020), Remote thermal detection of exfoliation sheet deformation, in Landslides
Guerin Antoine, Stock Greg M., Radue Mariah J., Jaboyedoff Michel, Collins Brian D., Matasci Battista, Avdievitch Nikita, Derron Marc-Henri (2020), Quantifying 40 years of rockfall activity in Yosemite Valley with historical Structure-from-Motion photogrammetry and terrestrial laser scanning, in Geomorphology
, 356, 107069-107069.
Guerin Antoine, Jaboyedoff Michel, Collins Brian D., Derron Marc-Henri, Stock Greg M., Matasci Battista, Boesiger Martin, Lefeuvre Caroline, Podladchikov Yury Y. (2019), Detection of rock bridges by infrared thermal imaging and modeling, in Scientific Reports
, 9(1), 13138-13138.
Matasci Battista, Stock G. M., Jaboyedoff Michel, Carrea Dario, Collins B. D., Guérin Antoine, Matasci G., Ravanel Ludovic (2018), Assessing rockfall susceptibility in steep and overhanging slopes using three-dimensional analysis of failure mechanisms, in Landslides
, 15(5), 859-878.
Guerin Antoine, Abellán Antonio, Matasci Battista, Jaboyedoff Michel, Derron Marc-Henri, Ravanel Ludovic (2017), Brief communication: 3-D reconstruction of a collapsed rock pillar from Web-retrieved images and terrestrial lidar data–the 2005 event of the west face of the Drus (Mont Blanc massif), in Natural Hazards and Earth System Sciences
, 17, 1207-1220.
Guerin Antoine, Ravanel Ludovic, Matasci Battista, Jaboyedoff Michel, Derron Marc-Henri, Deline Philip (2017), 11 years of ground-based lidar monitoring in the West Face of the Drus (Mont-Blanc Massif, France), in 11 years of ground-based lidar monitoring in the West Face of the Drus (Mont-Blanc Massif, France)
, International Center for Numerical Methods in Engineering (CIMNE), Barcelona, Spain.
Guerin Antoine, Nguyen Liliane, Abellán Antonio, Carrea Dario, Derron Marc-Henri, Jaboyedoff Michel (2017), Common problems encountered in 3D mapping of geological contacts using high-resolution terrain and image data, in European Journal of Remote Sensing
, 48(1), 661-672.
Guerin Antoine, Derron Marc-Henri, Jaboyedoff Michel, Abellan Antonio, Dubas Olivier, Collins Brian, Stock Greg (2016), Exfoliation sheets detection with Terrestrial Laser Scanning and thermal imaging (Yosemite Valley, California, USA), in Exfoliation sheets detection with Terrestrial Laser Scanning and thermal imaging (Yosemite Valley, C
, Uni Research CIPR, Bergen, Norway.
High-resolution imaging of vertical outcrops is now possible because of the new remote sensing techniques. This opens new research domains related to fracture network characterization and vertical geology. The present proposal is the continuation of the project "High resolution vertical geology for rockfall hazard assessment and 3D geological mapping (2013-2015)" in which we are conducting researches about the innovative approach of 3D geology based on 3D point clouds coupled with different types of imaging (high resolution optical image, infrared, etc...), analysis of discontinuity sets depending on rock types, time series of rock fall using diachronic cloud points and modelling of fracture network. This opens new perspectives for erosion of rock walls and rock fall hazards, which will be tackled in this final stage of the research.Mapping geological structures directly on 3D point clouds is possible and will be developed further by coupling point clouds data with different types of images in the framework of the so called “virtual outcrop” topic. Based on that, the structures (discontinuities, folds, etc...) will be analysed. A crucial topic for erosion, rockfall and reservoir characterization is the description of spacing distribution, trace length and shape of discontinuities. This will lead to Discrete Fracture Network modelling (DFN), which allows testing the validity of the observations. The expected results will provide information about erosion promoted by rockfall activity, and input for future research on reservoir characterization.Several sites already monitored or well-studied by our group will be used, such as Yosemite National Park (California), Torres Del Paine National Park (Patagonia), Randa, Les Drus, outcrops of reservoir formation in Tunisia, and other sites where data are already available. In addition to be able to obtain more accurate observations we instrumented a site (La Cornalle cliff) close to Lausanne, in order to image and model the geology and to have very accurate observations of rock wall erosion processes.The main outcome of this project will be providing a very accurate understanding of the erosion of rock walls, based on full and accurate 3D geological models, in order to be able in further projects to tackle the characterization of reservoirs in fractured rocks and to improve the quantification of rockfall erosion.