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Dive into the research topics where Florian Humair is active.

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Featured researches published by Florian Humair.


Geological Society of America Bulletin | 2015

From the source area to the deposit: Collapse, fragmentation, and propagation of the Frank Slide

Marie Charrière; Florian Humair; Corey Froese; Michel Jaboyedoff; Andrea Pedrazzini; Céline Longchamp

The combination of structural data from the source area and descriptive data from the deposit’s carapace, as well as remote sensing and statistical analysis, allows a better understanding of the collapse, fragmentation, and propagation processes of the Frank Slide rock avalanche. The in situ observed conservation of the stratigraphic sequence of the Turtle Mountain anticline’s normal limb in the deposit is interpreted as the consequence of the collapse mode, involving simple shearing of the mass accompanied by a rotational movement, i.e., a “simple shear” parallel to the topography, and a breakage of the hinge, followed by overthrusting of the normal limb on the inverse limb. Coherence between the block size distributions of the source area and the deposit carapace is interpreted as a demonstration of the primary control of preexisting fracturing on the fragmentation processes. Remote-sensing indexes allow us to uncover a priori hidden morphological features preserved on the surface of the deposit, i.e., longitudinal and compressional features, as well as lobes. Their location on the carapace provides evidence of lateral heterogeneity in the propagation, highlighted by three different types of propagation behaviors. This comprehensive study not only provides elements that contribute to an understanding of the Frank Slide rock avalanche, but it also provides insight into essential parameters to take into account in further modeling of these types of phenomena.


European Journal of Remote Sensing | 2015

Geological mapping and fold modeling using Terrestrial Laser Scanning point clouds: application to the Dents-du-Midi limestone massif (Switzerland)

Battista Matasci; Dario Carrea; Antonio Abellán; Marc-Henri Derron; Florian Humair; Michel Jaboyedoff; R. Metzger

Abstract Geological mapping in vertical rock faces is extremely challenging because of access difficulties and limited possibilities of recognition, localization and measurement of features at large distance with traditional tools. Moreover, vertical areas can be of primary interest since they often display good quality outcrops and relevant geological information. This study focuses on the detailed remote identification of rock types and fold structures using intensity values acquired by Terrestrial Laser Scanning. A correction of the intensity is proposed proportional to the square of the range and to the cosine of the incidence angle. Furthermore, two methods of remote lithological mapping in 3D have been developed using a manual and a semi-automatic approach. Both delivered good results that are consistent with the spatial distribution of rock-types and allowed us to generate an accurate 3D lithological map of Dents-du-Midi massif (Valais, Swiss Alps). The bedding orientation near the hinge of a Km scale fold was measured on LiDAR data in order to define the fold axis. Then, the result was used to build a model of the hinge in 3D.


Archive | 2015

Inventory of Rock Slope Deformations Affecting Folded Sedimentary Layers in Moderate Relief Context: The Case of the Livingstone Range Anticlinorium, AB, Canada

Florian Humair; Jean-Luc Epard; Marc-Henri Derron; Michel Jaboyedoff; D. Pana; Corey Froese; Andrea Pedrazzini

This contribution investigates the distribution of rock slope deformations (RSD) and their relationships with tectonic structures, lithological and topographic contexts. This is performed in a moderate relief context (1,100–2,500 masl.) affected by thin-skin tectonic. The proposed inventory, along the Livingstone range anticlinorium (LRA), contains 160 gravitational events that are spatially clustered in four areas. The thrust-folds properties (density, geometry and lithology) and the local relief appear to primary influence the development of RSD in this context.


Isprs Journal of Photogrammetry and Remote Sensing | 2016

Correction of terrestrial LiDAR intensity channel using Oren-Nayar reflectance model: An application to lithological differentiation

Dario Carrea; Antonio Abellán; Florian Humair; Battista Matasci; Marc-Henri Derron; Michel Jaboyedoff


Engineering Geology | 2012

Combining digital elevation model analysis and run-out modeling to characterize hazard posed by a potentially unstable rock slope at Turtle Mountain, Alberta, Canada

Andrea Pedrazzini; Corey Froese; Michel Jaboyedoff; Oldrich Hungr; Florian Humair


Landslides | 2016

Characterisation and spatial distribution of gravitational slope deformation in the Upper Rhone catchment (Western Swiss Alps)

Andrea Pedrazzini; Florian Humair; Michel Jaboyedoff; Marj Tonini


Tectonophysics | 2013

Structural characterization of Turtle Mountain anticline (Alberta, Canada) and impact on rock slope failure

Florian Humair; Andrea Pedrazzini; Jean-Luc Epard; Corey Froese; Michel Jaboyedoff


European Journal of Remote Sensing | 2015

Geological layers detection and characterisation using high resolution 3D point clouds: example of a box-fold in the Swiss Jura Mountains

Florian Humair; Antonio Abellán; Dario Carrea; Battista Matasci; Jean-Luc Epard; Michel Jaboyedoff


Archive | 2012

Landslides: Characterization and management of rockslide hazard at Turtle Mountain, Alberta, Canada

Corey Froese; Marie Charrière; Florian Humair; Michel Jaboyedoff; Andrea Pedrazzini


Geomorphology | 2017

The role of tectonic deformation on rock avalanche occurrence in the Pampeanas Ranges, Argentina

Ivanna Penna; Antonio Abellán; Florian Humair; Michel Jaboyedoff; Sergio Daicz; Luis Fauqué

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Corey Froese

Energy Resources Conservation Board

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