Modeling rockfall frequency and bounce height from three-dimensional simulation process models and growth disturbances in submontane broadleaved trees

Corona, Christophe; Lopez-Saez, Jérôme; Favillier, Adrien; Mainieri, Robin; Eckert, Nicolas; Trappmann, Daniel; Stoffel, Markus; Bourrier, Franck; Berger, Frédéric

doi:10.1016/j.geomorph.2016.12.019

Cited by 41 publications

(18 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One approach to address the impact problematic is to use dendrogeomorphic techniques to asses rockfall frequency and distribution (Trappmann and Stoffel, 2015;Corona et al, 2017) and/or trajectory reconstruction via impact analysis (Paronuzzi, 2009;Saroglou et al, 2018). Hardly any data exist that directly measure rock-ground interactions during a rockfall event.…”

Section: Introductionmentioning

confidence: 99%

Brief Communication: Measuring rock decelerations and rotation changes during short-duration ground impacts

Caviezel¹,

Gerber

2018

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Rockfall trajectories are primarily influenced by ground contacts, causing changes in acceleration and rock rotation. The duration of contacts and its influence on the rock kinematics are highly variable and generally unknown. The lack of knowledge hinders the development and calibration of physics-based rockfall trajectory models needed for hazard mitigation. To address this problem we placed three-axis gyroscopes and accelerometers in rocks of various sizes and shapes with the goal of quantifying rock deceleration in natural terrain. Short ground contacts range between 8 and 15 ms, longer contacts between 50 and 70 ms, totalling to only 6 % of the runtime. Our results underscore the highly nonlinear character of rock–ground interactions.

show abstract

Section: Introductionmentioning

confidence: 99%

Brief Communication: Measuring rock decelerations and rotation changes during short-duration ground impacts

Caviezel¹,

Gerber

2018

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…The results are still comparable with the actual state of the rockfall propagation and runout area (e.g. Trappmann et al, 2014), but perhaps the calibration could be improved if i) the rg values were not changed simultaneously, ii) more combinations of coefficients were used, iii) the calibration was done together with soil types (Corona et al, 2017), and iv) calibration was done for an individual spatial resolution. In future rockfall modelling we should use new techniques for determining surface roughness coefficients and other geometrical information on endangered slopes and falling rocks, e.g.…”

Section: Discussionmentioning

confidence: 57%

Rockfall modelling in forested areas: the role of digital terrain model spatial resolution

Žabota

Mikoš

Kobal

2019

Preprint

View full text Add to dashboard Cite

Abstract. This article examines how digital terrain model (DTM) spatial resolution influences rockfall modelling using a probabilistic process-based model, RockyFor3D, while taking into account the effect of forest on rockfall propagation and runout area. A rockfall site in the Trenta valley, NW Slovenia, was chosen as a case study. The analysis included DTM spatial resolutions of 1 m, 2 m, 5 m, 10 m, 12.5 m and 25 m, based on lidar data. The highest spatial resolution (1 m) was used to calibrate the surface roughness coefficients of the model while also taking into account the effect of forest since it shapes the rockfall propagation and runout area. The results of the calibration runs were evaluated using goodness-of-fit indices, and the best set of parameters were further used for modelling rockfalls with and without the effect of forest for all spatial resolutions. Accuracy statistics were used to validate the modelled rockfall propagation and runout area for each spatial resolution, with/without the effect of forest. Finally, modelling outputs, such as the mean of the maximum and maximum kinetic energy, the number of block passes and forest parameters in the rockfall propagation area, were compared.

show abstract

“…The aim of this data collection phase is to identify the hazards, model their intensity and frequency, and to zone the area at risk. These operations can be supported by several GIS tools which have been recently developed in the research field, such as RockyFor3D [38], in addition to other studies from Corona et al [39] and Monnet et al [40] for rockfall, and other models for debris flow [41] or avalanches [42,43].…”

Section: The Demand Side: Risks and Stakeholder Needsmentioning

confidence: 99%

A Framework for the Integration of Nature-Based Solutions into Environmental Risk Management Strategies

2019

View full text Add to dashboard Cite

Mountainous areas are expected to face increasing societal pressure due to mass tourism and the rising intensity and frequency of natural hazards triggered by climate change. Therefore, the development of proper strategies for the management of environmental risks will be crucial to ensure their liveability. Against this backdrop, concepts such as territorial resilience and Social–Ecological Systems (SES) can support the prioritisation of protective efforts. This paper presents a conceptual framework to be applied to areas subject to natural hazards. Its aim is to support the integration of different measures, with a special focus on protection forests and other Nature-based Solutions, into current risk management strategies. The framework considers (i) the definition of SES boundaries; (ii) the identification of the main goals to be achieved; (iii) the quantification of the supply and demand of the ecosystem protection service; and (iv) the development of risk management strategies able to include the management of protection forests among the adopted solutions. This framework is intended as a tool to be adopted by local and regional decision-makers as a tool to identify the areas at risk, to recognise the potential role of protection forests, and to operationalise the concept of resilience through the deployment of “grey-green” strategies.

show abstract

Modeling rockfall frequency and bounce height from three-dimensional simulation process models and growth disturbances in submontane broadleaved trees

Cited by 41 publications

References 37 publications

Brief Communication: Measuring rock decelerations and rotation changes during short-duration ground impacts

Brief Communication: Measuring rock decelerations and rotation changes during short-duration ground impacts

Rockfall modelling in forested areas: the role of digital terrain model spatial resolution

A Framework for the Integration of Nature-Based Solutions into Environmental Risk Management Strategies

Contact Info

Product

Resources

About