Articles | Volume 11, issue 5
Research article
09 Oct 2023
Research article |  | 09 Oct 2023

Geotechnical controls on erodibility in fluvial impact erosion

Jens M. Turowski, Gunnar Pruß, Anne Voigtländer, Andreas Ludwig, Angela Landgraf, Florian Kober, and Audrey Bonnelye

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Cited articles

Attal, M., Lavé, J., and Masson, J.P.: New facility to study river abrasion processes, J. Hydrol. Eng., 132, 624–628,, 2006. 
Auel, C., Boes, R. M., and Sumi, T.: Abrasion damage estimation of sediment bypass tunnels: Validation and comparison of two prediction models, Annuals of the Disaster Preventions Research Institute, Kyoto University, No. 58 B, (last access: 4 October 2023), 2015. 
Auel, C., Albayrak, I., Sumi, T., and Boes, R. M.: Sediment transport in high-speed flows over a fixed bed: 2. Particle impacts and abrasion prediction, Earth Surf. Proc. Land., 42, 1384–1396,, 2017. 
Barnhart, K. R., Tucker, G. E., Doty, S. G., Shobe, C. M., Glade, R. C., Rossi, M. W., and Hill, M. C.: Inverting topography for landscape evolution model process representation: 3. Determining parameter ranges for select mature geomorphic transport laws and connecting changes in fluvial erodibility to changes in climate, J. Geophys. Res., 125, e2019JF005287., 2020. 
Beer, A. R. and Lamb, M. P.: Abrasion regimes in fluvial bedrock incision, Geology, 49, 682–686,, 2021. 
Short summary
Rivers can cut into rocks, and their strength modulates the river's erosion rates. Yet, which properties of the rock control its response to erosive action is poorly understood. Here, we describe parallel experiments to measure rock erosion rates under fluvial impact erosion and the rock's geotechnical properties such as fracture strength, elasticity, and density. Erosion rates vary over a factor of a million between different rock types. We use the data to improve current theory.