Geology-Modelling-Geomorphic Lab

Scientific manager: J.L. Grimaud

The lab aims at characterizing the behavior of river and sediment transport in various settings and configurations. The main target is to follow sediment (re) distribution in landscapes and improve the theoretical knowledge on sediment routing systems. Results of the studies are, for instance, meant to enrich fluvial and turbiditic processes in the FLUMY software. Ongoing developments include simulation of: (1) channel disconnection and abandonment (related to regional avulsion or cut-offs), (2) dynamics of erosion wave (knickpoints) along river long-profiles, and (3) planform evolution of deltas.

View of the lab with simulations of bifurcation dynamics.	Experimental simulation of meander abandonment related to cut-off.
Detail of a 3 cm-deep retreating knickpoint.	Experiment on fan delta.

Grimaud, J.-L., C. Paola, and V. Voller (2016), Experimental migration of knickpoints: influence of style of base-level fall and bed lithology, Earth Surface Dynamics, 4(1), 11.
Grimaud, J. L., C. Paola, and C. Ellis (2017), Competition between uplift and transverse sedimentation in an experimental delta, Journal of Geophysical Research: Earth Surface.
Limaye, A. B., J. L. Grimaud, S. Y. Lai, B. Z. Foreman, Y. Komatsu, and C. Paola (2018), Geometry and dynamics of braided channels and bars under experimental density currents, Sedimentology
Szewczyk, L., J. L. Grimaud, and I. Cojan (2019), Controls of bifurcation geometry on bed deposition patterns during experimental channel abandonments, Geophysical Research Abstracts (21).
Szewczyk, L., Grimaud, J.-L., and Cojan, I. (2020) Experimental evidences for bifurcation angles control on abandoned channel fill geometry, Earth Surf. Dynam., 8, 275-288.