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Dr Robert Thomas

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Robert Thomas

Senior Research Fellow in Geomorphology and Flood Risk


Erratum to “Geometrical and mechanical properties of four species of northern European brown macroalgae” [Coast. Eng. 84 (2014) 73–80] (2016)
Journal Article
Henry, P. Y., Paul, M., & Thomas, R. (2017). Erratum to “Geometrical and mechanical properties of four species of northern European brown macroalgae” [Coast. Eng. 84 (2014) 73–80]. Coastal Engineering, 120, 36-37. https://doi.org/10.1016/j.coastaleng.2016.11.002

© 2016 This erratum concerns Eq. (1) used in Paul et al. [3] which is the same as Eq. (1) in Paul and Henry [4]. A three-point bending test with clamped ends was performed on macroalga blade samples. As suggested in Fig. 1, this mechanical test was c... Read More about Erratum to “Geometrical and mechanical properties of four species of northern European brown macroalgae” [Coast. Eng. 84 (2014) 73–80].

A combined field, laboratory and numerical study of the forces applied to, and the potential for removal of, bar top vegetation in a braided river (2016)
Journal Article
Bankhead, N. L., Thomas, R. E., & Simon, A. (2017). A combined field, laboratory and numerical study of the forces applied to, and the potential for removal of, bar top vegetation in a braided river. Earth surface processes and landforms : the journal of the British Geomorphological Research Group, 42(3), 439-459. https://doi.org/10.1002/esp.3997

Vegetation can have an important role in controlling channel planform, through its effects on channel roughness, and root-reinforcement of bank and bar materials. Along the Platte River in central Nebraska, USA, The Platte River Recovery Implementati... Read More about A combined field, laboratory and numerical study of the forces applied to, and the potential for removal of, bar top vegetation in a braided river.

The impact of macroalgae on mean and turbulent flow fields (2015)
Journal Article
Thomas, R. E., & Mclelland, S. J. (2015). The impact of macroalgae on mean and turbulent flow fields. Journal of hydrodynamics. Ser. B, 27(3), 427-435. https://doi.org/10.1016/S1001-6058%2815%2960500-5

© 2015 Publishing House for Journal of Hydrodynamics. In this paper, we attempt to quantify the mean and turbulent flow fields around live macroalgae within a tidal inlet in Norway. Two Laminaria digitata specimens ∼0.50m apart were selected for deta... Read More about The impact of macroalgae on mean and turbulent flow fields.

Modeling of multilayer cohesive bank erosion with a coupled bank stability and mobile-bed model (2014)
Journal Article
Lai, Y. G., Thomas, R. E., Ozeren, Y., Simon, A., Greimann, B. P., & Wu, K. (2015). Modeling of multilayer cohesive bank erosion with a coupled bank stability and mobile-bed model. Geomorphology, 243, 116-129. https://doi.org/10.1016/j.geomorph.2014.07.017

Streambank erosion can be an important form of channel change in unstable alluvial environments. It should be accounted for in geomorphic studies, river restoration, dam removal, and channel maintenance projects. Recently, one-dimensional and two-dim... Read More about Modeling of multilayer cohesive bank erosion with a coupled bank stability and mobile-bed model.

Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs (2014)
Journal Article
Thomas, R. E., Johnson, M. F., Frostick, L. E., Parsons, D. R., Bouma, T. J., Dijkstra, J. T., …Vousdoukas, M. I. (2014). Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs. Journal of Hydraulic Research, 52(3), 311-325. https://doi.org/10.1080/00221686.2013.876453

Physical modelling is a key tool for generating understanding of the complex interactions between aquatic organisms and hydraulics, which is important for management of aquatic environments under environmental change and our ability to exploit ecosys... Read More about Physical modelling of water, fauna and flora: Knowledge gaps, avenues for future research and infrastructural needs.

Near-bed and surface flow division patterns in experimental river bifurcations (2014)
Journal Article
Marra, W. A., Parsons, D. R., Kleinhans, M. G., Keevil, G. M., & Thomas, R. E. (2014). Near-bed and surface flow division patterns in experimental river bifurcations. Water Resources Research, 50(2), 1506-1530. https://doi.org/10.1002/2013WR014215

Understanding channel bifurcation mechanics is of great importance for predicting and managing multichannel river processes and avulsion in distributary river deltas. To date, research on river channel bifurcations has focused on factors determining... Read More about Near-bed and surface flow division patterns in experimental river bifurcations.

Geometrical and mechanical properties of four species of northern European brown macroalgae (2013)
Journal Article
Paul, M., Henry, P. Y. T., & Thomas, R. E. (2014). Geometrical and mechanical properties of four species of northern European brown macroalgae. Coastal Engineering, 84, 73-80. https://doi.org/10.1016/j.coastaleng.2013.11.007

Aquatic vegetation interacts with the flow by posing an obstruction and in return experiences drag and is reconfigured by acting forces. It is suggested that plant buoyancy and stiffness affect these bio-physical interactions and hence should be cons... Read More about Geometrical and mechanical properties of four species of northern European brown macroalgae.