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Professor Rebecca Hodge's Outputs (5)

Predicting flow resistance in rough‐bed rivers from topographic roughness: Review and open questions (2024)
Journal Article
Ferguson, R. I., Hardy, R. J., Hodge, R. A., Houseago, R. C., Yager, E. M., & Yamasaki, T. N. (2024). Predicting flow resistance in rough‐bed rivers from topographic roughness: Review and open questions. Earth Surface Processes and Landforms, https://doi.org/10.1002/esp.6016

Most ways of predicting flow resistance in shallow rivers with a partial or complete cover of coarse sediment use a bed‐sediment grain diameter as a roughness length scale. However, beds with the same grain size distribution differ in roughness and f... Read More about Predicting flow resistance in rough‐bed rivers from topographic roughness: Review and open questions.

Single grain K-feldspar MET-IRSL sediment transport determination: bleaching patterns and rates (2024)
Journal Article
Rhodes, E. J., Spano, T. M., Hodge, R. A., Sawakuchi, A. O., & Bertassoli, D. J. (online). Single grain K-feldspar MET-IRSL sediment transport determination: bleaching patterns and rates. Quaternary Geochronology, Article 101626. https://doi.org/10.1016/j.quageo.2024.101626

This paper describes ways that Infra-Red Stimulated Luminescence (IRSL) signals from K-feldspar grains can be used to determine patterns and rates of sediment transport. In particular, it focusses on the potential provided by single grains to reveal... Read More about Single grain K-feldspar MET-IRSL sediment transport determination: bleaching patterns and rates.

Improving predictions of critical shear stress in gravel bed rivers: Identifying the onset of sediment transport and quantifying sediment structure (2024)
Journal Article
Hodge, R. A., Voepel, H. E., Yager, E. M., Leyland, J., Johnson, J. P. L., Sear, D. A., & Ahmed, S. (2024). Improving predictions of critical shear stress in gravel bed rivers: Identifying the onset of sediment transport and quantifying sediment structure. Earth Surface Processes and Landforms, 49(8), 2517-2537. https://doi.org/10.1002/esp.5842

Understanding when gravel moves in river beds is essential for a range of different applications but is still surprisingly hard to predict. Here we consider how our ability to predict critical shear stress (τ c ) is being improved by recent advances... Read More about Improving predictions of critical shear stress in gravel bed rivers: Identifying the onset of sediment transport and quantifying sediment structure.

Pro+: Automated protrusion and critical shear stress estimates from 3D point clouds of gravel beds (2024)
Journal Article
Yager, E. M., Shim, J., Hodge, R., Monsalve, A., Tonina, D., Johnson, J. P. L., & Telfer, L. (2024). Pro+: Automated protrusion and critical shear stress estimates from 3D point clouds of gravel beds. Earth Surface Processes and Landforms, 49(7), 2155-2170. https://doi.org/10.1002/esp.5822

The dimensionless critical shear stress (τ*c) needed for the onset of sediment motion is important for a range of studies from river restoration projects to landscape evolution calculations. Many studies simply assume a τ*c value within the large ran... Read More about Pro+: Automated protrusion and critical shear stress estimates from 3D point clouds of gravel beds.