Výsledky vyhledávání - "Sophie Lagarde"

Akademický článek

Rock slope failure preparation paced by total crack boundary length

Autor: Sophie Lagarde, Michael Dietze, Conny Hammer, Martin Zeckra, Anne Voigtländer, Luc Illien, Anne Schöpa, Jacob Hirschberg, Arnaud Burtin, Niels Hovius, Jens M. Turowski

Publikováno v: Communications Earth & Environment, Vol 4, Iss 1, Pp 1-8 (2023)

Abstract Gravitational mass wasting prediction requires understanding of the factors controlling failure. Prior to slope failure, cracks in the weakened rock are thought to grow and coalesce, eventually forming a continuous failure plane. Here, we ap

Externí odkaz: https://doaj.org/article/4436850fdd1142f5abfba8873c12a464

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Benford's law in detecting rapid mass movements with seismic signals

Autor: Qi Zhou, Hui Tang, Jens M. Turowski, Jean Braun, Michael Dietze, Fabian Walter, Ci-Jian Yang, Sophie Lagarde, Ahmed Abdelwahab

Rapid mass movements are a major threat in populated landscapes, as they can cause significant loss of life and damage civil infrastructure. Previous work has shown that using environmental seismology methods to monitor such mass movements and establ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58b8fad3fe877af0d0baa029a26c73a5
https://doi.org/10.5194/egusphere-egu23-8127

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Insights on factors controlling rockslope failure from pre-event cracking

Autor: Sophie Lagarde, Michael Dietze, Conny Hammer, Martin Zeckra, Anne Voigtländer, Luc Illien, Anne Schöpa, Jacob Hirschberg, Niels Hovius, Jens M. Turowski

In order to reduce the societal impact of mass-wasting events, we need observations to investigate the factors that control slope failure, such as the state of crack propagation along a failure plane. However, usually the failure plane is not accessi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30993dd294acd71771a56e7d21db06f1
https://doi.org/10.5194/egusphere-egu22-748

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Simplified simulation of rock avalanches and subsequent debris flows with a single thin-layer model: Application to the Prêcheur river (Martinique, Lesser Antilles)

Autor: Sophie Lagarde, Martin Mergili, Yoann Legendre, Gilles Grandjean, Clara Levy, Anne Mangeney, Jean-Christophe Komorowski, Yannick Thiery, Anne-Marie Lejeune, Arnaud Lemarchand, Benoit Vittecoq, Marc Peruzzetto, Fabrice R. Fontaine, Thomas Dewez, Anne Le Friant, Jean-Marie Saurel, Aude Nachbaur, Valérie Clouard

Publikováno v: Engineering Geology
vEGU 2021 : Gather
vEGU 2021 : Gather Online, Apr 2021, Vienna Online, Austria. ⟨10.5194/egusphere-egu21-2752⟩
Engineering Geology, Elsevier, 2022, 296, pp.106457. ⟨10.1016/j.enggeo.2021.106457⟩
Engineering Geology, 2022, 296, pp.106457. ⟨10.1016/j.enggeo.2021.106457⟩

International audience; This work focuses on the use of thin-layer models for simulating fast gravitational flows for hazard assessment. Such simulations are sometimes difficult to carry out because of the uncertainty on initial conditions and on sim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f8283ca925fc75dfa4ce5c48b5fb8f83
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5011927

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Grain‐Size Distribution and Propagation Effects on Seismic Signals Generated by Bedload Transport

Autor: Florent Gimbert, Jonathan B. Laronne, Jens M. Turowski, Eran Halfi, Sophie Lagarde, Michael Dietze

Publikováno v: Water Resources Research
Water Resources Research, American Geophysical Union, 2021, 57, ⟨10.1029/2020wr028700⟩
Water Resources Research, 2021, 57, ⟨10.1029/2020wr028700⟩

Bedload transport is a key process in fluvial morphodynamics, but difficult to measure. The advent of seismic monitoring techniques has provided an alternative to in‐stream monitoring, which is often costly and cannot be utilized during large flood

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ce962f1e01387b54bfd5cd56f189fdc
https://hal.archives-ouvertes.fr/hal-03454634

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Simplified simulation of rock avalanches and subsequent debris flows with a single thin-layer model. Application to the Prêcheur river (Martinique, Lesser Antilles)

Autor: Clara Levy, Anne Le Friant, Fabrice R. Fontaine, Marc Peruzzetto, Arnaud Lemarchand, Yoann Legendre, Sophie Lagarde, Benoit Vittecoq, Thomas Dewez, Gilles Grandjean, Jean-Christophe Komorowski, Valérie Clouard, Aude Nachbaur, Anne-Marie Lejeune, Jean-Marie Saurel, Anne Mangeney, Yannick Thiery, Martin Mergili

This work focuses on the use of thin-layer models for simulating fast gravitational flows for hazard assessment. Such simulations are sometimes difficult to carry out because of the uncertainty on initial conditions and on simulation parameters. In t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::209f30f3ce0a0a7040b280ecdb232ac1
https://doi.org/10.5194/egusphere-egu21-2752

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Hydraulic and sediment transport metrics of river systems from inverse modelling of seismic ground motion data

Autor: Eran Halfi, Sophie Lagarde, Jens M. Turowski, Eliisa Lotsari, Lina E. Polvi, Jonathan B. Laronne, Niels Hovius, Michael Dietze

Constraining bedload flux in rivers is a challenging objective, especially when the data need to be continuous, beyond-point estimates. Seismometers are potentially valuable alternatives to in‐stream devices, which involve extensive measurement inf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7aecb1fcc1d6487d571130d07b52deb3
https://doi.org/10.5194/egusphere-egu2020-4254

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Comparison between bedload flux from inverse modelling of seismic ground motion data and direct monitoring by Reid bedload samplers

Autor: Sophie Lagarde, Jonathan Laronne, Florent Gimbert, Jens Turowski, Micha Dietze, Eran Halfi

Quantification of bedload flux along with its boundary conditions is essential to advance our understanding of rivers and to reduce human and economic threats. However, gaining continuous high resolution empirical data is challenging. Seismic sensors

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37db7a2a38e634513b700a0c3c2bf035
https://doi.org/10.5194/egusphere-egu2020-3522

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Joint sensing of bedload flux and water depth by seismic data inversion

Autor: Jens M. Turowski, Jonathan B. Laronne, Eran Halfi, Sophie Lagarde, Michael Dietze

Publikováno v: Water Resources Research

Rivers are the fluvial conveyor belts routing sediment across the landscape. While there are proper techniques for continuous estimates of the flux of suspended solids, constraining bedload flux is much more challenging, typically involving extensive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a7eebb44ccd0bd279e267623341ffdb
https://gfzpublic.gfz-potsdam.de/pubman/item/item_4690891

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