Agenda Archives Thème : Séminaire

Pierre Romanet, Geoazur

A perspective on earthquake cycle modelling The modelling of earthquake cycle, including, the stress build up during inter-seismic stage, the nucleation of earthquakes or slow slip events, their propagation and their arrest before building up again the stress, has undergone rapid improvement over…

Adriano Gualandi, Cambridge University

Near-real time Cascadia slow earthquake kinematics and dynamics from GNSS position time series Slow slip events (SSEs) show many similarities with regular earthquakes but are characterised by a much shorter recurrence time (months/years instead of decades/millennia), offering us the possibility…

René Steinmann, GFZ Postdam

Exploring Earth’s Vibrations Using Machine Learning: From Giraffe Footfalls to Volcanic Eruptions Our planet undergoes continuous unrest across a broad spectrum of scales, ranging from the gentle footfalls of giraffes to the immense forces unleashed during volcanic eruptions and megathrust…

Apolline Mariotti, GFZ Postdam

Impact of climatic forcings on landscape evolution: long-term (0-75 ka) and short-term (2016-2021) comparison of denudation dynamics in the Var basin (France) Reconstructing the evolution of denudation rates over time is an important task for quantifying and understanding the impact of climate and…

Grand Séminaire ITES : Nicolas Mangold, LPG Nantes : Dernières nouvelles du rover Perseverance à la surface de Mars

Dernières nouvelles du rover Perseverance à la surface de Mars Voilà plus de 3 ans que le rover Perseverance a atterri dans le cratère de Jezero dans le but d'analyser les roches ce cratère, dans lequel il a déjà parcouru 23 km. Au cours de ce séminaire, je présenterai les différentes unités…

Laëtitia Pantobe, IPGP

Identification and modeling of forcings influencing seasonal microseismicity at La Soufrière in Guadeloupe: combining GNSS and hydrological data with M-SSA Volcano-Tectonic (VT) seismicity is commonly recorded prior to magmatic eruptions but not always prior phreatic or hydrothermal eruptions.…

Aurélien Mordret, GEUS Denmark

Aperiodic Seismic Arrays The recent discovery of a family of aperiodic monotiles has profoundly impacted the mathematical community, capturing significant attention from specialized and non-specialized audiences. This discovery resolves a long-standing mathematical problem regarding the existence…

Mohamed Azaroual, ISTO Orléans

O-ZNS Platform: Observatory of mass and heat transfers throughout the continuum “Soil – Vadose Zone – Saturated Zone” of the Beauce aquifer The observatory (O-ZNS platform) aimed to understand the water-rock-biosphere interactions and the mass (water and contaminants) and heat transfers in the…

Émilie Klein, ENS paris

Slip modes in the Atacama segment of the Chilean subduction zone The Atacama region is one of the last 3 remaining major seismic gaps of the Chilean subduction, where the last major earthquake occurred in 1922 (Mw8.6, Willis, 1929; Beck et al., 1998; Kanamori et al., 2019). There, two large highly…

Bryan Cochelin, Université d'Orléans

Dismantling of the Variscan Belt of Europe and Early Fragmentation of the Pangea: The Key Role of the Paleotethys Subduction From Late Carboniferous to Middle Permian time, the West European Variscan Belt recorded a long period of reorganization coexisting with the final assembly of Pangea and…

Zhikai Wang, University of Southampton

Deep hydration and lithospheric thinning at oceanic transform plate boundary Transform faults accommodate the lateral motions between lithospheric plates, producing large earthquakes. Away from active transform boundaries, former oceanic transform faults also form the fracture zones that cover the…

Anne Barnoud, Magellium

Apport de l'inversion 3D de données géophysiques multi-méthodes à l'imagerie de structures volcaniques Les volcans sont des édifices complexes et hétérogènes. Imager leur structure demande des méthodes adaptées au contexte ainsi qu’à la nature, à la qualité et à la quantité des données disponibles.…

Anna Vayness, ENS Paris

Les sciences du climat sont-elles écologistes ? À partir d'un travail de recherche en master de sciences sociales, Anna questionnera les impensés et les paradoxes de la manière d'agir des climatologues et de la production de la science climatique. Comment expliquer que ces chercheur·es, qui ont…

Pierre-André Garambois, INRAE, Aix-Marseille Université

Modélisation hydrologique multi-échelles apprenable Des modélisations numériques précises et fiables sont essentielles pour faire face aux enjeux socio-économiques de la prévision des inondations et des sécheresses dans un contexte de changement climatique. Néanmoins, la modélisation hydrologique…

Khalid Essa, Georessources, Nancy

Potential field data interpretation: case studies using various gravity and magnetic methods Several advanced techniques, including particle swarm optimization, the Bat algorithm, the Hunger Games algorithm, and variance analysis, are introduced for the interpretation of gravity and magnetic data.…

Hervé Jourde, Université de Montpellier

Bruno Gavazzi, Enerex

Les méthodes potentielles comme solutions d’imagerie multi-échelle et haute résolution dans le cadre de la transition écologique: recherches, développements et applications chez Enerex Enerex est une startup au statut de jeune entreprise universitaire (JEU) à forte part de R&D. Spécialisée dans…

Thibault Clauzel, CEA

Stable isotope study of bone and dental remains from Northern Gallic populations during the Second Iron Age: climate, diet, migrations The Gauls occupied the Western Europe territory during the Second Iron Age (500 BCE - 50 BCE). Originating from the Celts, the Gauls gathered in tribes and…

Quentin Chaffaut, METIS, Sorbonne Université

How can geophysics help characterize groundwater dynamics and water fluxes at the soil-plants-atmosphere interface? The critical zone is the thin layer of the Earth's surface that supports most of the terrestrial biosphere. It is a coupled system involving the atmosphere, hydrosphere and biosphere,…

Serge Sambolian, ITES

 High-resolution seismic imaging: from tomography to full-waveform inversion. Can we exploit our data in a better way? In active seismic imaging, the tomographic macro-model is seen as a smooth representation, containing only the long wavelength components, of the exact subsurface model. We often…