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LL

Laurent Longuevergne

6
Documents
Identifiants chercheurs

Présentation

I am junior researcher (CR2 CNRS) at [Geosciences Rennes](http://www.geosciences.univ-rennes1.fr/spip.php?rubrique483) laboratory since 2010, working on the development of geophysical and geodetic tools in the [hydrogeology](http://www.geosciences.univ-rennes1.fr/spip.php?rubrique413) team. After completion of an engineering degree in geophysics from the [Polytech’Paris school](https://www.polytech.upmc.fr/), I spent a year with the [French Polar Institute (IPEV)](http://www.institut-polaire.fr/) as a civil volunteer to maintain the geomagnetic and seismological observatories on the [Kerguelen Islands](http://en.wikipedia.org/wiki/Kerguelen_Islands). Then, I worked a few months with the [French Geological Survey (BRGM)](http://www.brgm.eu/) as an engineer to set up a statistical model of the Upper Rhine Aquifer. In 2004, I begun a PhD within the “hydrogeodesy” ANR project (PI: [N. Florsch](http://www.sisyphe.jussieu.fr/%7Eflorsch/)), on the development of ground geodetic instruments (tiltmeter, gravimeter) as tools for hydrology, combining field observations, modelling and process understanding as necessary steps to decipher physical processes in a fully transdisciplinary study. This contribution was awarded as best 2008 [PhD](http://tel.archives-ouvertes.fr/docs/00/31/92/05/PDF/these_longuevergne.pdf) by the [CNFGG](http://cnfgg.eu/php/index.php). During my Post-doc at the Jackson School of Geosciences, University of Texas, I extended my knowledge to GRACE gravity satellite with application to water resources and management at larger spatial scales with [B.R. Scanlon](http://www.beg.utexas.edu/personnel_ext.php?id=70). I also actively participated in the first challenge of adapting a superconducting gravimeter to the field with [C.R. Wilson](http://www.jsg.utexas.edu/researcher/clark_wilson/). My transdisciplinary skills allowed me to create living collaborations with various teams from the geodetic, hydrological and hydrometeorological communities. I am now the co-PI of the French “Future investment program” EQUIPEX “CRITEX” project, funded by ANR, which aims at developing a shared equipment network for the exploration of the Critical Zone (PI: [J. Gaillardet](http://www.ipgp.fr/%7Egaillard/jgweb/Gaillardet.Jerome.F/home.html)). This project is built on two recognized observation networks, [RBV](http://rnbv.ipgp.fr/) and[H+](http://hplus.ore.fr/en/). It gathers 15 universities and 5 research institutions (BRGM, CNRS, INRA, IRD, IRSTEA); and aims to be a meeting place dedicated to create interactions and synergy among observatory leaders, geophysicists and geochemists working around the “Critical Zone”.
I am junior researcher (CR2 CNRS) at [Geosciences Rennes](http://www.geosciences.univ-rennes1.fr/spip.php?rubrique483) laboratory since 2010, working on the development of geophysical and geodetic tools in the [hydrogeology](http://www.geosciences.univ-rennes1.fr/spip.php?rubrique413) team. After completion of an engineering degree in geophysics from the [Polytech’Paris school](https://www.polytech.upmc.fr/), I spent a year with the [French Polar Institute (IPEV)](http://www.institut-polaire.fr/) as a civil volunteer to maintain the geomagnetic and seismological observatories on the [Kerguelen Islands](http://en.wikipedia.org/wiki/Kerguelen_Islands). Then, I worked a few months with the [French Geological Survey (BRGM)](http://www.brgm.eu/) as an engineer to set up a statistical model of the Upper Rhine Aquifer. In 2004, I begun a PhD within the “hydrogeodesy” ANR project (PI: [N. Florsch](http://www.sisyphe.jussieu.fr/%7Eflorsch/)), on the development of ground geodetic instruments (tiltmeter, gravimeter) as tools for hydrology, combining field observations, modelling and process understanding as necessary steps to decipher physical processes in a fully transdisciplinary study. This contribution was awarded as best 2008 [PhD](http://tel.archives-ouvertes.fr/docs/00/31/92/05/PDF/these_longuevergne.pdf) by the [CNFGG](http://cnfgg.eu/php/index.php). During my Post-doc at the Jackson School of Geosciences, University of Texas, I extended my knowledge to GRACE gravity satellite with application to water resources and management at larger spatial scales with [B.R. Scanlon](http://www.beg.utexas.edu/personnel_ext.php?id=70). I also actively participated in the first challenge of adapting a superconducting gravimeter to the field with [C.R. Wilson](http://www.jsg.utexas.edu/researcher/clark_wilson/). My transdisciplinary skills allowed me to create living collaborations with various teams from the geodetic, hydrological and hydrometeorological communities. I am now the co-PI of the French “Future investment program” EQUIPEX “CRITEX” project, funded by ANR, which aims at developing a shared equipment network for the exploration of the Critical Zone (PI: [J. Gaillardet](http://www.ipgp.fr/%7Egaillard/jgweb/Gaillardet.Jerome.F/home.html)). This project is built on two recognized observation networks, [RBV](http://rnbv.ipgp.fr/) and[H+](http://hplus.ore.fr/en/). It gathers 15 universities and 5 research institutions (BRGM, CNRS, INRA, IRD, IRSTEA); and aims to be a meeting place dedicated to create interactions and synergy among observatory leaders, geophysicists and geochemists working around the “Critical Zone”.

Publications

camille-bouchez

The Aerobic Critical Zone: deep transport and reactivity of dissolved oxygen in fractured bedrock aquifers

Ivan Osorio , Camille Bouchez , Julien Farasin , Thierry Labasque , Nicolas Lavenant
27e édition de la Réunion des Sciences de la Terre, SGF, CNRS, Laboratoire de Géologie de Lyon ou l’étude de la Terre, des planètes et de l’environnement, Nov 2021, Lyon, France
Communication dans un congrès hal-03589261v1

In-situ biogeochemical response to oxygendelivery in a fractured-bedrock aquifer:insights from a reactive Push-Pull test

Ivan-David Osorio-Leon , Melissa Garry , Camille Bouchez , Julien Farasin , Eliot Chatton
Advancing Critical Zone science. First OZCAR TERENO International Conference, Oct 2021, Strasbourg, France. pp.248
Communication dans un congrès insu-03602775v1

A Breath in the Dark: Transport and Reactivity of Dissolved Oxygen in Fractured-Bedrock Aquifers

Ivan-David Osorio-Leon , Camille Bouchez , Eliot Chatton , Julien Farasin , Thierry Labasque
American Geophysical Union Fall Meeting (AGU 2021), Dec 2021, virtual, United States. pp.B54B-03
Communication dans un congrès insu-03534154v1

The Aerobic Critical Zone: deep transport and reactivity of dissolved oxygen in fractured bedrock aquifers

Ivan-David Osorio-Leon , Camille Bouchez , Julien Farasin , Labasque Thierry , Nicolas Lavenant
27 ème Réunion des sciences de la Terre (RST 2021), Nov 2021, Lyon, France. pp.781
Communication dans un congrès insu-03524130v1

Which role do preferential flowpaths and fractures play in the subsurface reactivity in heterogeneous aquifers?

Camille Bouchez , Nicolas Lavenant , Julien Farasin , Thierry Labasque , Ivan-David Osorio-Leon
European Geosciences Union General Assembly, Apr 2020, online, Austria. pp.EGU2020-17564
Communication dans un congrès insu-02539424v1