Rivers : sediment transfer and extreme events

This team addresses questions related to:

• the geomorphology of rivers and sedimentary bodies,

• upstream/downstream evolution of sediment transported on a “Source to Sink” continuum,

• coupling between reservoir geometry, water flows and sediment transport.

This team brings together about ten people with skills in hydraulics, seismics, geomorphology, hydrology, sedimentology, tectonics, 3D remote sensing and geophysics. One of the team’s main objectives is to foster cross-disciplinary exchanges. It presents the originality of extending the spatial scale of the problem from the catchment area to the grain characteristics (size, shape, size distribution), and of addressing the change in temporal scale since the morphogen event (flood) up to several million years (stratigraphic signal), in particular exploring the impact and signature of extreme events (earthquakes, storms). These are all research questions that range from fundamental aspects of understanding basic geomorphological processes to operational aspects of critical resource management and its impact on the environment.

Members

Team leader : Alain Crave (60 %, CR CNRS, géomorphologie/mesure in-situ)

Academic staff :

    Philippe Davy (DR CNRS, 20%, géomorphologie/modélisation),
    François Guillocheau (Prof UR1, 70%, sédimentologie/géomorphologie/terrain),
    Laure Guerit (CR CNRS, 70 %, transport sédimentaire/Lidar/expérimentation,
    Joris Heyman (CR CNRS, 30%, transport sédimentaire/expérimentation),
    Dimitri Lague (DR CNRS, 50%, géomorphologie/Lidar),
    Cécile Robin (MCF UR1, 75%, sédimentologie/terrain)
    Philippe Steer (MCF UR1, 50 %, géomorphologie cycle sismique/modélisation).

Non-permanent staff :

    Mouhamadoul Ba
    Marine Le Minor
    Mathilde Letard
    Nicolas Marie
    Marc Oliver-Soulayrol
    Iwan Setiawan

Ongoing projects

  • ERC FEASIBLe (Impact of earthquakes on landscape dynamics)
  • ITN S2S Future (Understanding and modeling sediment evolution along erosion zones on geological time scales)
  • ANR JCJC SUCHY  (geomorphological control of biogeochemical functioning in the hyporheic zone)
  • BERCEAU (Help in the assessment of stream restoration)
  • LEARN (Impact of Dam Development on Stream Hyporheism)