A5091122712- Landslides and related hazards
- Cryospheric studies and observations
- Tree-ring climate responses
- Fire effects on ecosystems
- Soil erosion and sediment transport
- Flood Risk Assessment and Management
- Plant Water Relations and Carbon Dynamics
- Winter Sports Injuries and Performance
- Hydrology and Sediment Transport Processes
- Tree Root and Stability Studies
- Hydrology and Watershed Management Studies
- Climate change and permafrost
- Geographic Information Systems Studies
- Seismology and Earthquake Studies
- Rock Mechanics and Modeling
Université Grenoble Alpes
2015-2022
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2020-2021
Université Joseph Fourier
2015
Significance Snow avalanches represent a major threat in mountain environments, where they cause damage to critical infrastructure and claim hundreds of lives every year. Here, we document an unambiguous upslope migration snow with climate change, physical mechanism whose existence could previously not be demonstrated. In the Vosges Mountains, show evidence that winter warming +1.35 °C induced sevenfold reduction number avalanches, as well their magnitude shortening avalanche season. These...
Les bases de données événementielles sont importantes pour la compréhension des risques d’origine naturelle et limitation dommages associés. En France, en zones montagne, les phénomènes naturels potentiellement dommageables enjeux nombreux diversifiés, mais recensant informations liées aux événements du passé peu nombreuses. La base service Restauration terrains montagne l’Office national forêts (BD-RTM) capitalise l’information selon une approche multi-phénomènes sur longue période...
Databases of natural hazards play a crucial role for assessing related risks and in mitigating their impacts on the environment. In mountainous regions France, potentially destructive events are both numerous diverse, however, only limited number databases containing information past occurrences exist. The database RTM service (Restoration Mountainous Areas service, BD-RTM) consolidates such through multi-hazard approach over an extended timeframe, integrating systematic observations...
Abstract The medium-high mountain ranges of Western Europe are undergoing rapid socio-environmental changes. aim this study is to show that their landscape can be strongly shaped by the actions avalanche activity, humans and climate. area Rothenbachkopf-Rainkopf complex, a site representative avalanche-prone areas Vosges Mountains (France). A geo-historical approach documents regular activity over more than 200 years on 13 paths. diachronic analysis historical maps photographs demonstrates...
In mountainous regions, global warming will likely affect the frequency and magnitude of geomorphic processes. This is also case for rockfall, one most common mass movements on steep slopes. Rainfall, snowmelt, or freeze-thaw cycles are main drivers rockfall activity, hazards thus generally thought to become more relevant in a context climate change. At high elevations, unequivocal relationships have been found between increased permafrost thawing warming. By contrast, below limit, studies...
Rockfall release is a rather unpredictable process. As result, the occurrence of rockfall often threatens humans and (infra)structures. The assessment potential drivers activity therefore remains major challenge, even if relative influence rainfall, snowmelt, or freeze–thaw cycles has long been identified in short‐term monitoring projects. In absence longer‐term assessments triggers possible changes thereof, our knowledge dynamics still lacunary as result persisting scarcity exhaustive...
Determination of spatial and temporal patterns rockfall events remains a serious challenge in most mountain areas especially when it comes to quantitative hazard assessments, because the scarcity incompleteness long-term records. This lack reliable baseline data is particularly problematic urbanized where risk tend increase as urbanization climbing up on slopes. On forested slopes, dendrogeomorphic methods have been applied repeatedly fill this gap, they provide both reconstructions past...
Les bases de données événementielles recensant les chutes blocs et leurs conséquences restent peu développées. Dans Alpes françaises, un territoire pourtant propice où enjeux sont nombreux diversifiés, l’information existante est dispersée hétérogène. le contexte du Projet National C2ROP, premier effort capitalisation, d’homogénéisation d’exploitation l’existant a été réalisé. La base C2ROP-INRAE construite couvre six départements des françaises rassemble d’ores déjà plus 8000 événements au...
The contribution of tree inventories to the spatial characterisation rockfall hazard Rockfall is one most frequent natural hazards in mountain areas. activity terms frequency, intensity (energy) and dispersion (run-out distance) essential for risk management, but extremely complex due diffuse nature this gaps historical records. In study we show that trees can be reliable bioindicators reconstruct activity. Our method based on combination a systematic mapping all (location, breast height...
<p>In the course of 20th century, high-mountain regions, such as Alps, have experienced a significant warming with temperature increase twice much global average. Such strongly alters cryosphere components. It induces, for example, shift from solid to liquid precipitation, more frequent and intense snowmelt phases or strong decrease in amount duration snow cover, especially at location snow-rain transition. changes cover characteristics are expected induce spontaneous avalanche...
Depuis deux décennies, de nombreuses publications scientifiques ont mis en évidence les impacts du changement climatique sur la fréquence des chutes pierres dans parois englacées haute altitude. À plus basse altitude, inventaires rares et incomplets existants n’ont pas permis d’identifier un impact significatif l’augmentation températures. Dans ce travail, nous avons utilisé une approche dendrogéomorphologique, basée l’étude perturbations cernes croissance arbres, pour reconstituer...