Explanipedia

Towards centimeter precision SAR-RFID localization Open

Arthur Charléty, Morgane Magnier, Mathieu Le Breton, Laurent Baillet, Éric Larose , et al. · 2024

Radio-Frequency Identification (RFID) shows great potential for earth-sciences applications, notably for landslide surface monitoring at a high spatio-temporal resolution with long-term robustness to meteorological events (rain, fog, snow)…

Original Insights Into Rock Slope Damage Processes Until Collapse From Passive Seismic Monitoring Open

Pierre Bottelin, Laurent Baillet · 2024

We performed a passive seismic monitoring of the La Praz ∼14,000 m 3 unstable slope (French Alps) spanning over 10 years. During the last 6 months prior to collapse, we detected a clear 24% decrease in the slope's fundamental resonance fre…

Constraining near-fault ground motion simulations : the potential of observations of displaced grave slabs Open

Mathieu Causse, Christos Lachanas, Dimitrios Vamvatsikos, Laurent Baillet · 2024

International audience

Reconstruction and forecasting of slow-moving landslide displacement using a Kalman Filter approach Open

Mohit Mishra, Gildas Besançon, Guillaume Chambon, Laurent Baillet · 2024

This work presents an approach for reconstructing displacement patterns and unknown soil properties of slowmoving landslides, using a special form of so-called Kalman filter or observer. The approach relies on a model for the prediction st…

A Comprehensive Seismic Monitoring of the Pillar Threatening the World Cultural Heritage Site Chauvet‐Pont d'Arc Cave, Toward Rock Damage Assessment Open

Antoine Guillemot, Laurence Audin, Éric Larose, Laurent Baillet, Philippe Guéguen , et al. · 2024

Fragile geological features must undergo frequent structural health assessments to prevent catastrophic failure events. The mechanical behavior of natural sites is largely guided by vibrations of the earth and environmental exposure, but d…

Monitoring the mechanics of mountain permafrost using ambient noise seismology Open

Antoine Guillemot, Éric Larose, Laurent Baillet, Agnès Helmstetter, Xavier Bodín , et al. · 2024

Since last decades, coda wave interferometry (CWI) from ambient seismic noise has become an efficient method to probe continuous temporal changes of mechanical properties of the subsurface and crust. This method has successfully been used …

Alternance of two reactivation regimes on Pont-Bourquin earthflow, highlighted by changes in seismic velocity and sensitivity to rainfall Open

Mathieu Le Breton, Éric Larose, Florent Chatelain, Laurent Baillet, Alexandra Royer , et al. · 2024

This study detects the regular alternation of two different reactivation regimes of the Pont-Bourquin Earthflow, occurring from 2010 to 2023, by combining the continuous monitoring of three indicators:(1) seismic velocity, using ambient no…

Investigating Rainfall-Driven Resonance Frequency Changes in a Natural Rock Formation Open

Juliane Starke, Laurent Baillet, Éric Larose, Antoine Guillemot, Laurence Audin · 2024

Rainfall, temperature variations, and chemical processes are well-known drivers of rock erosion. The impact of rainfall on rocks is not well-understood yet but may impact the mechanical properties (including damage, rigidity, deformation) …

Locating subglacial cavities and investigating basal conditions on glaciers with ambient seismic noise: toward acquisition optimization. Open

Éric Larose, Noélie Bontemps, Antoine Guillemot, Laurent Baillet · 2024

Subglacial cavities may trap a considerable quantity of liquid water, causing devastating outburst floods in densely populated mountain areas. Both active and passive geophysical methods are employed for the glacier-bedrock interface and i…

Investigating Subglacial Water‐Filled Cavities by Spectral Analysis of Ambient Seismic Noise: Results on the Polythermal Tête‐Rousse Glacier (Mont Blanc, France) Open

Antoine Guillemot, Noélie Bontemps, Éric Larose, Daniela Teodor, Sylvain Faller , et al. · 2024

Polythermal glaciers can trap considerable volumes of liquid water with the potential to generate devastating outburst floods. This study aims to identify water‐filled subglacial reservoirs from ambient seismic noise collected by moderate‐…

Monitoring snow water equivalent using the phase of RFID signals Open

Mathieu Le Breton, Éric Larose, Laurent Baillet, Yves Lejeune, Alec van Herwijnen · 2023

The amount of water contained in a snowpack, known as snow water equivalent (SWE), is used to anticipate the amount of snowmelt that could supply hydroelectric power plants, fill water reservoirs, or sometimes cause flooding. This work int…

Tomography of the quantity of grass using RFID propagation-based sensing Open

Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

Passive RFID tags have diverse low-cost sensing applications, with sensors either connected to the tag or the tag antenna acting as a sensor, allowing close-range measurements. However, an emerging approach utilizes wave propagation for re…

Tomography of the quantity of grass using RFID propagation-based sensing Open

Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

Passive RFID tags have diverse low-cost sensing applications, with sensors either connected to the tag or the tag antenna acting as a sensor, allowing close-range measurements. However, an emerging approach utilizes wave propagation for re…

Tomography of grass bulk permittivity using RFID propagation-based sensing Open

Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

Propagation-based sensing is an emerging approach to sense remotely the properties of the propagation channel. This study shows how interrogating tags across 19 m of dense grass influences the phase delay. Moving the tag vertically within …

RFID landslide monitoring : long-term outdoor signal processing and phase unwrapping Open

Arthur Charléty, Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

Localization of passive Radio-Frequency Identification (RFID) tags has been used to monitor landslide surface displacement since 5 years. This method, applied on slow displacements lower than 1cm per day, allows a high spatiotemporal resol…

RFID landslide monitoring : long-term outdoor signal processing and phase unwrapping Open

Arthur Charléty, Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

Localization of passive Radio-Frequency Identification (RFID) tags has been used to monitor landslide surface displacement since 5 years. This method, applied on slow displacements lower than 1cm per day, allows a high spatiotemporal resol…

Landslide mechanisms unraveled by RFID monitoring with a Machine Learning approach Open

Arthur Charléty, Mathieu Le Breton, Éric Larose, Laurent Baillet · 2023

Radio-Frequency Identification (RFID) shows great potential for earth-sciences applications [1], notably in landslide surface monitoring at high spatio-temporal resolution [2] with meteorological robustness [3]. Ten 865MHz RFID tags …

SAR localization of passive RFID tags under snow and vegetation using a mobile reader antenna Open

Mathieu Le Breton, Arthur Charléty, Nicolás Grunbaum, Éric Larose, Laurent Baillet · 2023

Passive RFID tags are opening new capabilities of monitoring in geoscience [1], applied to landslide [2-3], snowpack [4] or riverine pebble monitoring. This study investigate the ability to localize passive RFID tags (working at 868 M…

Soilstab and Evorisk: a web-service and web-platform for landslide and rock-fall hazards monitoring using ambient seismic noise methods Open

Alexandra Royer, Mathieu Le Breton, Antoine Guillemot, Éric Larose, Laurent Baillet , et al. · 2023

Landslide monitoring is essential to a better understanding of their dynamics and to the reduction of human casualties by detecting precursors before failures. In general, observations on the surface must be supplemented by sub-surface obs…

Thermo-Acousto-Elasticity (TAE) of natural rock cliffs: toward better understanding and monitoring damage and erosion process Open

Éric Larose, Antoine Guillemot, Laurent Baillet, Pierre Bottelin · 2023

Rainfalls and freeze-thaw cycles are well known to largely contribute to rock slopes erosion, including chemical processes (dissolution, alteration) together with mechanical action (stress change in fractures due to water freezing). The ro…

Pluriannual seismic monitoring of rock glaciers: new insights on their dynamics Open

Antoine Guillemot, Éric Larose, Laurent Baillet, Agnès Helmstetter, Xavier Bodín · 2023

Among mountain permafrost landforms, rock glaciers are composed of a heterogeneous mixture of rock debris, ice and liquid water. They can reach surface velocities of several m/yr for the most active ones, potentially causing emerging hazar…

Detection and localization of ice cavitiy using ambient seismic noise Open

Laurent Baillet, Daniela Teodor, Antoine Guillemot, Sylvain Faller, Éric Larose , et al. · 2023

Subglacial cavities may trap a considerable quantity of liquid water, causing devastating outburst floods in densely populated mountain areas. Dedicated studies aimed at identifying such intraglacial cavities at an early stage of their for…

Comment on egusphere-2022-761 Open

Mathieu Le Breton, Éric Larose, Laurent Baillet, Yves Lejeune, Alec van Herwijnen · 2023

Abstract. This work shows that passive radio-frequency identification (RFID) tags can be used as low-cost contactless sensors, to measure the variations in snow water equivalent (SWE) of a snowpack. RFID tags are produced …

Passive Seismic Surveying of La Praz Rock Slope: Resonance Mapping and Damage Detection Before Failure Open

Pierre Bottelin, Ombeline Méric, Laurent Baillet, David Beniamine, Anne Lescurier · 2023

RFID Landslide Monitoring: Long-Term Outdoor Signal Processing and Phase Unwrapping Open

Arthur Charléty, Mathieu Le Breton, Laurent Baillet, Éric Larose · 2023

International audience

Dense and long-term monitoring of earth surface processes with passive RFID — a review Open

Mathieu Le Breton, Frédéric Liébault, Laurent Baillet, Arthur Charléty, Éric Larose , et al. · 2022

Long-term Monitoring of Soil Surface Deformation with RFID Open

Arthur Charléty, Mathieu Le Breton, Laurent Baillet, Éric Larose · 2022

International audience

Monitoring snowpack SWE and temperature using RFID tags as wireless sensors Open

Mathieu Le Breton, Éric Larose, Laurent Baillet, Yves Lejeune, Alec van Herwijnen · 2022

This work shows that passive radio-frequency identification (RFID) tags can be used as low-cost contactless sensors, to measure the variations in snow water equivalent (SWE) of a snowpack. RFID tags are produced massively to remotely ident…

2D Phase-Based RFID Localization for On-Site Landslide Monitoring Open

Arthur Charléty, Mathieu Le Breton, Éric Larose, Laurent Baillet · 2022

Passive radio-frequency identification (RFID) was recently used to monitor landslide displacement at a high spatio-temporal resolution but only measured 1D displacement. This study demonstrates the tracking of 2D displacements, using an ar…

Changes in resonance frequency of rock columns due to thermoelastic effects on a daily scale: observations, modelling and insights to improve monitoring systems Open

Antoine Guillemot, Laurent Baillet, Éric Larose, Pierre Bottelin · 2022

Summary Slope instabilities, including prone-to-fall rock columns, are known to exhibit clear vibrational modes. The resonance frequencies of these modes can be tracked by seismic instrumentation, allowing the rock column's mechanical and …

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