Davide Bertolo
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View article: A hybrid approach to quantifying rockfall risk with limited knowledge: a case study in Aosta Valley
A hybrid approach to quantifying rockfall risk with limited knowledge: a case study in Aosta Valley Open
The quantification of rockfall risk along an infrastructure is a fundamental achievement for an appropriate management of mountain roads and it consists of various steps: from the identification of the sources and sizes of the potential un…
View article: A-posteriori analysis of the performance of a rockfall susceptibility map
A-posteriori analysis of the performance of a rockfall susceptibility map Open
Background Rockfalls pose a serious threat along the main road network, representing a major hazard in mountainous territory and causing damage and victims. Currently, susceptibility mapping represents a starting point to identify areas mo…
View article: Regional-scale 3D modelling in metamorphic belts: An implicit model-driven workflow applied in the Pennine Alps
Regional-scale 3D modelling in metamorphic belts: An implicit model-driven workflow applied in the Pennine Alps Open
View article: Rockfalls, fragmentation, and dust clouds: analysis of the 2017 Pousset event (Northern Italy)
Rockfalls, fragmentation, and dust clouds: analysis of the 2017 Pousset event (Northern Italy) Open
The process and dynamics of rock fragmentation during the collapse of rockfalls and rock avalanches is a poorly developed topic. The most severe fragmentation often leads to the formation of a rock dust that rises to form a cloud suspended…
View article: State of activity classification of deep-seated gravitational slope deformation at regional scale based on Sentinel-1 data
State of activity classification of deep-seated gravitational slope deformation at regional scale based on Sentinel-1 data Open
Deep-seated gravitational slope deformations (DsGSDs) are very slow slope instabilities that can have a long-term impact on anthropic structures and infrastructures. The characterization of their state of activity is, therefore, essential …
View article: Assessing the rock failure return period on an unstable Alpine rock wall based on volume-frequency relationships: The Brenva Spur (3916 m a.s.l., Aosta Valley, Italy)
Assessing the rock failure return period on an unstable Alpine rock wall based on volume-frequency relationships: The Brenva Spur (3916 m a.s.l., Aosta Valley, Italy) Open
View article: Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard
Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard Open
The presence of trees along the slope and block fragmentation at impact strongly affect rockfall dynamics and hazard as a consequence. However, these phenomena are rarely simulated explicitly in rockfall studies. We performed rockfall simu…
View article: Geophysical Surveys for Geotechnical Model Reconstruction and Slope Stability Modelling
Geophysical Surveys for Geotechnical Model Reconstruction and Slope Stability Modelling Open
Performing a reliable stability analysis of a landslide slope requires a good understanding of the internal geometries and an accurate characterisation of the geotechnical parameters of the identified strata. Geotechnical models are common…
View article: Comment on egusphere-2022-1521
Comment on egusphere-2022-1521 Open
Abstract. The presence of trees along the slope and block fragmentation at impact strongly affect rockfall dynamics, and hazard as a consequence. However, these phenomena are rarely simulated explicitly in rockfall studies…
View article: Comment on egusphere-2022-1521
Comment on egusphere-2022-1521 Open
Abstract. The presence of trees along the slope and block fragmentation at impact strongly affect rockfall dynamics, and hazard as a consequence. However, these phenomena are rarely simulated explicitly in rockfall studies…
View article: Structural interpretation of Digital Outcrop Models on point clouds using a semi-automatic workflow: case studies on fractured metamorphic rocks (Aosta Valley, Italy)
Structural interpretation of Digital Outcrop Models on point clouds using a semi-automatic workflow: case studies on fractured metamorphic rocks (Aosta Valley, Italy) Open
The study and characterization of fracture network find applications in a wide range of fields, from the analysis and modelling of mechanical and hydraulic properties of rock masses, to petroleum reservoirs, waste repositories, aquifers an…
View article: Point cloud analysis and segmentation procedures in the PZero software
Point cloud analysis and segmentation procedures in the PZero software Open
With the rapid increase in computing power, 3D modelling and efficient visualization of complex geological features has become more common and accessible. We propose a new point cloud visualization and data analysis module for the open sou…
View article: Three-dimensional modelling of a complex metamorphic nappe stack from field survey only: the case study of the Aosta Valley (Italian NW-Alps)
Three-dimensional modelling of a complex metamorphic nappe stack from field survey only: the case study of the Aosta Valley (Italian NW-Alps) Open
Three-dimensional structural modelling of complex metamorphic settings is an extremely challenging task. In these settings, rocks sequences record multiple ductile and brittle events, leading for instance to refolded fold structures, isocl…
View article: Supplementary material to "Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard"
Supplementary material to "Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard" Open
View article: Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard
Accounting for the effect of forest and fragmentation in probabilistic rockfall hazard Open
The presence of trees along the slope and block fragmentation at impact strongly affect rockfall dynamics, and hazard as a consequence. However, these phenomena are rarely simulated explicitly in rockfall studies. We performed rockfall sim…
View article: Damage to anthropic elements estimation due to large slope instabilities through multi-temporal A-DInSAR analysis
Damage to anthropic elements estimation due to large slope instabilities through multi-temporal A-DInSAR analysis Open
Deep-seated gravitational slope deformations (DsGSDs) are widespread phenomena in the Alpine environment. Their dynamics, although very slow, endanger human settlements and connecting infrastructures. Monitoring such phenomena is mandatory…
View article: 3D geomodelling of multiphase ductile and brittle deformations: a unique tool for quantifying structural relationships and tectonic evolution (Penninic units of the NW Alps)
3D geomodelling of multiphase ductile and brittle deformations: a unique tool for quantifying structural relationships and tectonic evolution (Penninic units of the NW Alps) Open
<p>The North-Western Alps represent the better-known orogenic playground worldwide, exposing the stack of the Western Austroalpine, Penninic, and Helvetic metamorphic nappes, separated by ophiolitic sutures. However a modern and deta…
View article: Rock instability hazard in high mountain area: the example of the Brenva spur (Mont Blanc massif)
Rock instability hazard in high mountain area: the example of the Brenva spur (Mont Blanc massif) Open
<p>Large rock-ice avalanches have been observed in the past in the Mont Blanc Massif area, notably from the Grand Pilier d’Angle in 1920 and from the Brenva spur in 1997, which involved millions of cubic meters of material.…
View article: Counterintuitive fracturing in a multilayer of more or less competent rocks: Examples in porous carbonates and metamorphic rocks, and explanation with numerical modelling
Counterintuitive fracturing in a multilayer of more or less competent rocks: Examples in porous carbonates and metamorphic rocks, and explanation with numerical modelling Open
<p>Characterizing and modelling geometrical and topological characteristics of fracture networks, both in fault zones and in the less-fractured background, is essential for the analysis and modelling of mechanical and hydraulic prope…
View article: Collapse, fragmentation, high-speed boulders, and dust cloud: analysis of the 2017 Pousset (Cogne, Val D&#8217;Aosta) rockslide in Northern Italy
Collapse, fragmentation, high-speed boulders, and dust cloud: analysis of the 2017 Pousset (Cogne, Val D’Aosta) rockslide in Northern Italy Open
<p>The dynamics of rock fragmentation during the collapse of a rock avalanche, a rockfall, or an extremely energetic rockfall, is insufficiently known (De Blasio et al., 2018). Fragmentation especially at the base of a rock avalanche…
View article: ARTEMIS &#8211; An operational tool to manage the information provided by Persistent Scatterers Monitoring at a regional scale.
ARTEMIS – An operational tool to manage the information provided by Persistent Scatterers Monitoring at a regional scale. Open
<p>The increasing diffusion of the PS (Persistent Scatterers) InSAR services across the world and the early adoption of PS-Monitoring techniques, provide to the civil protection authorities effective and objective tools for disaster …
View article: A semi-automatic workflow for structural interpretation of large point-cloud Digital Outcrop Models on complex fractured metamorphic rocks (Aosta Valley, Italy)
A semi-automatic workflow for structural interpretation of large point-cloud Digital Outcrop Models on complex fractured metamorphic rocks (Aosta Valley, Italy) Open
<p>Characterization of fracture networks, both in fault zones and in the less-fractured background, is essential for the analysis and modelling of mechanical and hydraulic properties of the rock mass (i.e. rock plus fractures). Here …
View article: Preliminary analysis of potential daily cyclic movements on the surface of Brenva rockslide scar based on the GB-InSAR monitoring (Mont-Blanc massif, Aosta Valley, Italy)
Preliminary analysis of potential daily cyclic movements on the surface of Brenva rockslide scar based on the GB-InSAR monitoring (Mont-Blanc massif, Aosta Valley, Italy) Open
<p>With global warming, geological hazards such as rockfalls, rockslides and rock avalanches have increased in alpine areas recently. In many studies, this increase has been attributed to the redistribution of the slope stress field,…
View article: Definition of an Operative Methodology for the Management of Rockfalls along with the Road Network
Definition of an Operative Methodology for the Management of Rockfalls along with the Road Network Open
Rockfalls are widespread events in mountain areas worldwide. The management of this process can be done using different approaches. In this paper, we want to analyze the procedure that can be adopted to manage a rockfall event considering …
View article: Integration of Satellite Interferometric Data in Civil Protection Strategies for Landslide Studies at a Regional Scale
Integration of Satellite Interferometric Data in Civil Protection Strategies for Landslide Studies at a Regional Scale Open
Multi-Temporal Satellite Interferometry (MTInSAR) is gradually evolving from being a tool developed by the scientific community exclusively for research purposes to a real operational technique that can meet the needs of different users in…
View article: 3D geomodelling in the complex metamorphic and poly-deformed units of the Italian Western Alps (Conca di By, Aosta Valley, Italy)
3D geomodelling in the complex metamorphic and poly-deformed units of the Italian Western Alps (Conca di By, Aosta Valley, Italy) Open
<p>3D geological modelling of complex metamorphic terrains that underwent a sequence of ductile and brittle deformation events is an extremely challenging task. Difficulties start from the input data that are frequently sparse and he…
View article: Advanced rockfall modelling for risk mitigation: tree impact and fragmentation
Advanced rockfall modelling for risk mitigation: tree impact and fragmentation Open
<p>Despite their centrality to rockfall risk management, two issues are frequently overlooked: the role of forests in rockfall dynamic and the fragmentation phenomenon. To investigate the importance of these issues we have developed …
View article: Assessment of multitemporal INSAR data for establishing regional landslides inventories
Assessment of multitemporal INSAR data for establishing regional landslides inventories Open
<p>Over 2700 gravitational movements are recorded as polygons in the inventory of the Aosta region (3261 km2, Northern Italy). The surface affected by gravitational processes is about 20% of the overall surface area of the Aosta regi…
View article: Rockfall susceptibility along the regional road network of Aosta Valley Region (northwestern Italy)
Rockfall susceptibility along the regional road network of Aosta Valley Region (northwestern Italy) Open
Rockfalls are a major hazard in mountain areas. They can endanger human settlements and infrastructures, and, every year, cause multiple damage and victims. An investigation of those areas more susceptible to rockfall represents a key appr…
View article: Quantitative characterization of fracture networks on Digital Outcrop Models obtained from avionic and terrestrial laser scanner
Quantitative characterization of fracture networks on Digital Outcrop Models obtained from avionic and terrestrial laser scanner Open
<p>We present a semi-automatic workflow aimed at extracting quantitative structural data from point clouds obtained with avionic and terrestrial laser scanners (Lidar and TLS). The workflow is characterized by a calibration phase fol…