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LL

Laurent Longuevergne

12
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

philippesteer
Image document

Finite-hillslope analysis of landslides triggered by excess pore water pressure: the roles of atmospheric pressure and rainfall infiltration during typhoons

Lucas Pelascini , Philippe Steer , Maxime Mouyen , Laurent Longuevergne
Natural Hazards and Earth System Sciences, 2022, 22 (10), pp.3125 - 3141. ⟨10.5194/nhess-22-3125-2022⟩
Article dans une revue insu-03810408v1
Image document

Characteristics and possible origins of the seismicity in northwestern France

Éric Beucler , Mickaël Bonnin , Céline Hourcade , Brigitte van Vliet-Lanoë , Clement Perrin
Comptes Rendus. Géoscience, 2021, Seismicity in France, 353 (S1), pp.53-77. ⟨10.5802/crgeos.86⟩
Article dans une revue insu-03423460v1
Image document

Quantifying sediment mass redistribution from joint time-lapse gravimetry and photogrammetry surveys

Maxime Mouyen , Philippe Steer , Kuo-Jen Chang , Nicolas Le Moigne , Cheinway Hwang
Earth Surface Dynamics, 2020, 8 (2), pp.555-577. ⟨10.5194/esurf-8-555-2020⟩
Article dans une revue insu-02881907v1
Image document

Assessing modern river sediment discharge to the ocean using satellite gravimetry

Maxime Mouyen , Laurent Longuevergne , Philippe Steer , Alain Crave , Jean-Michel Lemoine
Nature Communications, 2018, 9 (1), pp.Art. n°3384. ⟨10.1038/s41467-018-05921-y⟩
Article dans une revue insu-01862202v1
Image document

Typhoon-Induced Ground Deformation

Maxime Mouyen , A. Canitano , B. F. F Chao , Y.-J. Hsü , Philippe Steer
Geophysical Research Letters, 2017, 44 (21), pp.11004-11011. ⟨10.1002/2017GL075615⟩
Article dans une revue insu-01634635v1

Assessing modern river sediment discharge to the ocean using satellite gravimetry

Laurent Longuevergne , Maxime Mouyen , Philippe Steer , Alain Crave , Jean-Michel Lemoine
American Geophysical Union 2018, Fall Meeting, Dec 2018, Washington, United States. pp.EP12B-08
Communication dans un congrès insu-01927880v1

Assessing modern rates of river sediment discharge to the ocean using satellite gravimetry

Maxime Mouyen , Laurent Longuevergne , Philippe Steer , Alain Crave , Jean-Michel Lemoine
European Geosciences Union General Assembly 2017, European Geosciences Union, Apr 2017, Vienne, Austria. pp.EGU2017-7577
Communication dans un congrès insu-01520871v1

ASSESSING MODERN RATES OF RIVER SEDIMENT DISCHARGE TO THE OCEAN USING SATELLITE GRAVIMETRY

Maxime Mouyen , Laurent Longuevergne , Philippe Steer , Alain Crave , Cécile Robin
Source to Sink: a long term perspective of sediment budgets and sources characterization, Géosciences-Rennes, Nov 2016, Rennes, France. pp.79
Communication dans un congrès insu-01406500v1

Quantification of erosion and sedimentation using time-lapse gravimetry and Lidar in southern Taiwan

Maxime Mouyen , Philippe Steer , Thomas Croissant , Nicolas Le Moigne , Cheinway Hwang
EGU General Assembly 2016, Apr 2016, Vienna, Austria. p.9089
Communication dans un congrès insu-03605976v1

The impact of groundwater dynamics on landsliding and hillslope morphology: insights from typhoon Morakot and landscape evolution modelling

Philippe Steer , Lucas Pelascini , Laurent Longuevergne , Min-Hui Lo
European General Assembly 2024 (EGU24), Apr 2024, Vienne (AUT), Austria. pp.EGU24-15523, 2024, ⟨10.5194/egusphere-egu24-15523⟩
Poster de conférence hal-04511456v1

Coupling gravimetry and morphometry to quantify and localize mass transfers across scales in geomorphology

Maxime Mouyen , Philippe Steer , Laurent Longuevergne , Et Al.
European Geosciences Union General Assembly 2018, Apr 2018, Vienne, Austria. Geophysical Research Abstracts, 20, pp.EGU2018-13949, 2018
Poster de conférence insu-01767705v1

Quantification of erosion and sedimentation using time-lapse gravimetry and Lidar in southern Taiwan

Maxime Mouyen , Philippe Steer , Thomas Croissant , Nicolas Lemoigne , Cheinway Hwang
European Geosciences Union General Assembly 2016, Apr 2016, Vienne, Austria. Geophysical Research Abstracts, 18, pp.EGU2016-12916-1, 2016
Poster de conférence insu-01308554v1