Zobrazeno 1 - 10 of 39 pro vyhledávání: '"Bertrand Aunay"'
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Akademický článek
How Can the Morphometric Characteristics and Failure Conditions of a Historic Gully Caused by Intense Rainfall Be Reconstructed?
Autor: Claire Rault, Yannick Thiery, Bertrand Aunay, Bastien Colas, Kahina Reboul, Thomas J. B. Dewez
Publikováno v: Earth, Vol 3, Iss 1, Pp 324-344 (2022)
In January 1980, during exceptional cyclonic rainfall, an atypical landslide, called déboulé, rapidly generated the permanent 700 m-long gully of the Ravine de l’Eglise on an inhabited plateau in Reunion Island (Indian Ocean). Retrieving the init
Externí odkaz: https://doaj.org/article/2a8a2542bd8d475dbe0080a940f15555
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2
Akademický článek
Control of Tropical Landcover and Soil Properties on Landslides’ Aquifer Recharge, Piezometry and Dynamics
Autor: Pierre Belle, Bertrand Aunay, Patrick Lachassagne, Bernard Ladouche, Jean-Lambert Join
Publikováno v: Water, Vol 10, Iss 10, p 1491 (2018)
Among the processes controlling landslide dynamics, piezometry plays a major role. The characterization of a landslide’s aquifer recharge (=inflows) is thus indispensable for predicting displacements. In this research, the recharge of the large Gra
Externí odkaz: https://doaj.org/article/a4b0e09ddcb741b4824e226f91198780
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3
New Insights from a Multi-Method Geophysical Investigation on a Very Large, Slow-Moving Landslide (Hell Bourg, Reunion Island)
Autor: Claire Rault, Bertrand Aunay, A. Britri, M. Delatre, Pierre-Alexandre Reninger, Y. Thiery, K. Samyn
Publikováno v: First Break. 39:71-78
Hell Bourg landslide (Salazie, Reunion Island) is a large, inhabited, slow-moving landslide (>200 Mm3). This landslide covers and remobilizes debris from former volcanic flank collapses. The volume, lithology, structure and evolution through time of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c0f874934986016c6c88e136b31b22a
https://doi.org/10.3997/1365-2397.fb2021063
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4
ReNovRisk: a multidisciplinary programme to study the cyclonic risks in the South-West Indian Ocean
Autor: Alicia Gonzalez, Sabine Garabedian, Claire Rault, Kevin Samyn, David Nortes-Martinez, Dominique Mekies, Soline Bielli, Guillaume Payen, Gwenaëlle Pennober, Florian Jouvenot, Fabrice R. Fontaine, Christelle Barthe, Joris Pianezze, E. J. Rindraharisaona, Julien Cattiaux, Jean-Lambert Join, Idriss Fontaine, Jean-Pierre Cammas, Pascal Mouquet, Bertrand Aunay, Remi Belon, Fabrice Chauvin, Pierre Tulet, Callum Thompson, François Bonnardot, Franck Gabarrot, Olivier Bousquet, Guilhem Barruol, Hélène Vérèmes, Christophe Révillion
Publikováno v: Natural Hazards
Natural Hazards, Springer Verlag, In press, ⟨10.1007/s11069-021-04624-w⟩
Natural Hazards, 2021, ⟨10.1007/s11069-021-04624-w⟩
Today, resilience in the face of cyclone risks has become a crucial issue for our societies. With climate change, the risk of strong cyclones occurring is expected to intensify significantly and to impact the way of life in many countries. To meet so
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1268282684ac83b9e13aecd307ecac28
https://doi.org/10.1007/s11069-021-04624-w
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5
An integrated geochemical spatial and temporal survey of thermal springs to characterize the geothermal resource of a volcano (Piton des Neiges, Réunion Island)
Autor: Bhavani Bénard, Vincent Famin, Bernard Sanjuan, Françoise Vimeux, Bertrand Aunay, Pierre Agrinier, Geneviève Lebeau
Publikováno v: Applied Geochemistry
Applied Geochemistry, 2023, 154, pp.105689. ⟨10.1016/j.apgeochem.2023.105689⟩
International audience; Geothermal exploration can be challenging in the absence of obvious surface indicators of a high enthalpy geothermal resource such as geysers, fumaroles or thermal springs with temperatures near 100 °C. This is the case at th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed7bfa74f0ae6914c844280d1175bee8
https://doi.org/10.1016/j.apgeochem.2023.105689
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7
How to reconstruct geometrical characteristics and failure conditions of an historic atypical complex flow-like landslide: example of the Déboulé of La Ravine de l’Eglise (La Réunion Island, France)
Autor: Bertrand Aunay, Kahina Reboul, Claire Rault, Yannick Thiery, Thomas Dewez
The reconstruction of scenarios of historical hazardous landslide and erosion processes is a milestone to understand their formation, and perform an appropriate hazard assessment. Here, we focus on the possible conditions that lead to a dramatic cycl
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbb86b94bb796e3fe4694abf9de07697
https://doi.org/10.5194/egusphere-egu21-4296
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8
New Insights into a Very-Large, Slowly Moving Landslide (Hell-Bourg, Reunion) from High-Resolution Seismic Surveys
Autor: Claire Rault, M. Delatre, A. Bitri, K. Samyn, Bertrand Aunay
Publikováno v: NSG2021 27th European Meeting of Environmental and Engineering Geophysics.
Summary In November 2020, a passive and active seismic investigation was applied to the large slow-moving landslide of Hell-Bourg, Reunion Island. The objective of this survey is to provide relevant information for the characterisation of the interna
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f15014615320a15ca948fe62f680711
https://doi.org/10.3997/2214-4609.202120107
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9
Hydrogeophysical Characterization in a Volcanic Context From Local to Regional Scales Combining Airborne Electromagnetism and Magnetism
Autor: Marc Dumont, Laurent Michon, Guillaume Martelet, Jean-Lambert Join, Alexandre Pryet, Damien Jougnot, Pierre-Alexandre Reninger, Bertrand Aunay
Publikováno v: Geophysical Research Letters
Geophysical Research Letters, American Geophysical Union, 2021, 48 (12), pp.e2020GL092000. ⟨10.1029/2020gl092000⟩
Geophysical Research Letters, American Geophysical Union, 2021, 48 (12), ⟨10.1029/2020GL092000⟩
International audience; In volcanic islands, a crucial step in managing watershed water resources is the characterization of groundwater aquifers from local to regional scales. Airborne geophysical data provide high-resolution images down to hundreds
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28a9db2a8630ed4663e6c1786f426051
https://hal.archives-ouvertes.fr/hal-03266446/document
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10
Origin and fate of hydrothermal fluids at Piton des Neiges volcano (Réunion Island): A geochemical and isotopic (O, H, C, Sr, Li, Cl) study of thermal springs
Autor: Françoise Vimeux, Bertrand Aunay, Pierre Agrinier, Vincent Famin, Bhavani Bénard, Geneviève Lebeau, Chrystel Dezayes, Gérard Bardoux, Bernard Sanjuan
Publikováno v: Journal of Volcanology and Geothermal Research
Journal of Volcanology and Geothermal Research, Elsevier, 2020, 392, pp.106682. ⟨10.1016/j.jvolgeores.2019.106682⟩
Journal of Volcanology and Geothermal Research, 2020, 392, pp.106682. ⟨10.1016/j.jvolgeores.2019.106682⟩
As many ocean basaltic volcanoes worldwide, Piton des Neiges (Reunion Island) hosts a hydrothermal system that represents a potential geothermal resource. Despite several prospection campaigns over the past decades, this potential has never been conf
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40ed343d6e30f29298577cee38b28026
https://hal-brgm.archives-ouvertes.fr/hal-02538144
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