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Rechercher

OSUG - Terre Univers Environnement

Stéphane GARAMBOIS

Career
- Since 2017 : Professor in Geophysics, ISTerre, University Grenoble Alpes
- 2001-2017 : Assistant Professor at University Grenoble Alpes, ISTerre, (UGA, France)
- 1999-2001 : Post-doctoral scientist at Université de Pau et des Pays de l’Adour (Pau, France)
- 1995-1999 : PhD in Geophysics, LGIT, Université Joseph Fourier
- 1994-1995 : Internship at Observatoire Midi-Pyrénées (Toulouse), GRGS, military duties

Diplomas
- (2010) Habilitation à diriger des Recherches, Université Joseph Fourier, Grenoble :
« Investigations géophysiques de la subsurface : milieux multiphasiques et aléas
naturels »
- (1999) PhD in geophysics, Université Joseph Fourier, Grenoble. « Etudes
expérimentales et théoriques des conversions d’ondes sismo-électriques dans les milieux
poreux superficiels ».
- (1994) D.E.A. Mécanique des Milieux Géophysiques et Environnement, Université
Joseph Fourier, Grenoble.
- (1993) Maîtrise de Physique Recherche, Université Joseph Fourier, Grenoble.

Keywords
Geophysical Imaging, multi-physics, multi-scales, natural hazards, ressources, porous media, data,numerical modelling, inversion

Outline
My research focuses on multi-method geophysical characterization of various natural hazards, such as gravitational instabilities (landslides and rockfall), active faults, seismic site effects and glacial hazards. He is also interested in the multiphasic character of geological formations, by considering fluid’s effect in wave propagation imaging (seismic, electromagnetic, seismo-electromagnetic). This quantitative imaging problem is of interest in environmental, hydrological, natural resources (oil, CO2) or geotechnical engineering problems. All of the research proposed was based on real data (active or passive), implying a large number of field and laboratory campaigns conducted in France and outsides (Italy, Antarctic, New-Zealand, Laos, Ecuador ...).

For quantitative interpretation of these data, methodological advances were sometimes proposed by combining theoretical and/or numerical developments with geophysical inversion. It includes the potential of seismo-electromagnetic wave conversions in poroelastic materials, thin layer characterization for stability assessment using Ground Penetrating Radar (GPR) and also Full Waveform Inversion approach on seismic and GPR data for georesources (Seiscope Consortium) and environmental purposes. In addition, a large range of geophysical or geotechnical methods have been used depending on the context for joint interpretation and monitoring (Seismology, Geodesy, boreholes). A large part of this work was published in more than 55 international papers.


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