Dimitri Lague

Directeur de recherche. Responsable DIMENV@risce. Responsable de la Plateforme Lidar Nantes-Rennes

Dimitri Lague

E-mail : 

Téléphone :  +31 223235653

Bureau :  208

  1. Adress
  2. Responsabilities
  3. Research topics
  4. Airborne topo-bathymetric lidar
  5. Recent Papers and news
  6. Recent Research Projects

Adress

Equipe DIMENV@risce
Géosciences Rennes
Bât.14B, Pièce 208, campus Beaulieu
Université de Rennes 1
35042 RENNES cedex

Research topics

  • Physics of erosion processes and sediment transport in mountain rivers.
  • Terrestrial and Airborne Laser Scanning applied to geomorphology
  • Topo-bathymetric airborne lidar for river monitoring
  • Impact of extreme events and on landscape dynamics (floods, earthquakes...)
  • Stochastic geomorphology
  • Biogeomorphological couplings in estuarine dynamics
  • Impact and signature of climate and tectonics in landscapes
  • Experimental and numerical modelling of landscape and channel evolution.

Airborne topo-bathymetric lidar

Telechargement des données du TP SIG M1

Recent Papers and news

(pdf available on request) Complete list of publication available on google scholar

  • 2019: paper with Philippe Steer and recent PhD/Post-Doc of the team on how a realistic distribution of co-seismic knickpoint height generated on a fault ask fundamental question on river geometry records past-earthquakes: " Statistical Modelling of co-seismic knickpoint formation and river response to fault slip ", Steer, P., Croissant, T., Baynes, E., and Lague, D., Earth Surface Dynamics, 2019.
  • 2019: paper exploring the impact of the flexural rigidity of riparian vegetation on the size of the wake zone where sediment is trapped. A nice example of fruitful coupling of 3D lidar data, 3D computational fluid dynamics and vegetation biomechanical properties: "Flexural rigidity and shoot reconfiguration determine wake length behind saltmarsh vegetation patches", Marjoribanks, T., Lague, D., Hardy, R., Boothroyd, R., Leroux, J., Mony, C. and Puijalon, S, JGR Earth Surface, 2019
Figure TLS+CFD, Marjoribanks, 2019 - © AGU
Generation of co-seismic landslide map - © Elsevier
Mechanical model and resulting pdf of landslide area - © AGU
  • 2018: Thomas Bernard has just started his Phd on "Multi-scale analysis of water and sediment fluxes in landscapes using high resolution LiDAR data and numerical modelling" (supervisors: D. Lague & P. Davy). A project funded by Brittany Region (50%), Topo-bathymetric Airborne LiDAR Platform (25%) and the Fractory (25%).
  • 2018 : Following the completion of Ed Baynes's Marie-Curie Post-doc (now in New-Zealand as Post-Doc at Auckland University), here are a series of papers on knickpoint dynamics:
  • Baynes, E., Lague, D. and Kermarrec, J.-J., Supercritical river terraces generated by hydraulic and geomorphic interactions, Geology, 2018.

  • Baynes, E., Lague, D., Attal, M., Gangloff, A., Kirstein, L. and Dugmore, A., River self-organisation inhibits discharge control on waterfall migration, Scientific Reports, 2018
  • 2017 : Following the completion of Thomas’s Croissant brillant PhD, a series of papers on the impact of landslide on river dynamics are coming out using the latest version of EROS developed by Philippe Davy.
  • Croissant, T., Lague, D., Steer, P. and Davy, P., Rapid post-seismic landslide evacuation boosted by dynamic channel width, Nature Geosciences, 2017.
  • CNRS/INSU news related to our Nature Geosciences paper on Landslide removal by rivers
  • Davy, P., T. Croissant, and D. Lague, A precipiton method to calculate river hydrodynamics, with applications to flood prediction, landscape evolution models, and braiding instabilities, J. Geophys. Res. Earth Surf., 2017.
  • Croissant, T., Lague, D., Davy, P., Davies, T., and Steer, P. A precipiton-based approach to model hydro-sedimentary hazards induced by large sediment supplies in alluvial fans. Earth Surf. Process. Landforms, 2017.
  • 2017: Elevation change and stability on a prograding delta, Wagner, W., Lague, D., Mohrig, D. Passalaqua, P., Shaw, J. and Moffett, K., Geophysical Research Letters, 2017
  • 2017: Extreme flood-driven fluvial bank erosion and sediment loads : direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro-acoustic techniques, Leyland, J., Hackney, C., Darby, S., Parsons, D., Best, J., Nicholas, A., Aalto, R. and Lague, D., Earth Surface Processes and Landforms
  • Passalacqua, P., Belmont, P., Staley, D.M., Simley, J.D., Arrowsmith, J. R., Bode, C. A., Crosby, C., DeLong, S. B., Glenn, N., Kelly, S., Lague, D., Sangireddy, H., Schaffrath, K., Tarboton, D., Waskewicz, T., Wheaton, J., Analyzing high resolution topography for advancing the understanding of mass and energy transfer through landscapes : A review, Earth Science Reviews 2015
  • 2014 : qCANUPO and qM3C2 plugins for point cloud classification and comparison are now implemented in the Open Source software CloudCompare. Much faster and easier to use.
  • Lague, D., The stream power river incision model : evidence, theory and beyond, Earth Surface Processes and Landforms, State of Science paper, January, 2014.

Recent Research Projects

  • More project funded by MBIE ! Congrats to Pascal Sirguey (Otago University) for the Matariki project whose ambition is to revolutionize the monitoring of environment through satellite photogrammetry and 3D change detection. I'll be an "advisor" on the project.
  • Congrats to Philippe Steer's for his ERC. I'll contribute as senior staff (ERC FEASIBle)
  • Major project funded by MBIE (PI: Chris Massey, GNS) on studying Kaikoura earthquake induced landscape change. The Rennes team will contribute through numerical modelling on post-EQ river dynamics.
  • Thanks to the support of Brittany Region who co-funds the PhD of Thomas Bernard on revisiting geomorphological analysis of high resolution topographic data (project LIDAREAU, 2018)
  • Projet INSU/SYSTER/EROFRAC (2018): rôle de la fracturation dans l'érosion (thèse C. Astrié)
  • Thanks to the support of Rennes Metropole, an engineer position for 2 years has been funded for the Lidar Topo-bathymetric platform
  • ANR PICS (2018-2022): Prevision Immediate des Crues Soudaines (site web : http://pics.ifsttar.fr/)
  • Airborne Topo-Bathymetric lidar, funded by Regional Councils : Pays de la Loire, Brittanny, and FEDER european funds (2015)
  • CNRS/PEPS Terre-Mer : Modélisation numérique de l’impact de la végétation pionnière en Baie du Mt St Michel sur la sédimentation et comparaison avec données lidar terrestre, collab. Ifremer/dyneco, 2014
  • "SEDIQUAKE : hydrosedimentary hazards following an M8 earthquake on the Alpine Fault, New-Zealand", INSU/ALEAS, 2014.
  • "Biogeomorphological couplings in mega-tidal salt marshes", INSU/EC2CO/DRIL, 2012-2013
  • "EROSNZ - landslides, floods and erosion : new insights from event-based field measurements in the Southern Alps of New Zealand and stochastic 2D numerical modeling of long-term landscape evolution, funded by EEC MCIOF (2011-2012).