Longest sediment flows yet measured show how major rivers connect efficiently to deep sea (2022)
Journal Article
Talling, P. J., Baker, M. L., Pope, E. L., Ruffell, S. C., Silva Jacinto, R., Heijnen, M. S., …Hilton, R. J. (2022). Longest sediment flows yet measured show how major rivers connect efficiently to deep sea. Nature communications, 13, Article 4193. https://doi.org/10.1038/s41467-022-31689-3

We document directly for the first time how major river floods connect to the deep-sea, by analysing the longest runout sediment flows (of any type) yet measured in action. These seafloor turbidity currents originated from the Congo River-mouth, with... Read More about Longest sediment flows yet measured show how major rivers connect efficiently to deep sea.

Agricultural Pea Waste as a Low-Cost Pollutant Biosorbent for Methylene Blue Removal: Adsorption Kinetics, Isotherm And Thermodynamic Studies (2022)
Journal Article
Holliday, M. C., Parsons, D. R., & Zein, S. H. (2022). Agricultural Pea Waste as a Low-Cost Pollutant Biosorbent for Methylene Blue Removal: Adsorption Kinetics, Isotherm And Thermodynamic Studies. Biomass Conversion and Biorefinery, https://doi.org/10.1007/s13399-022-02865-8

Biosorbents are an alternative pollutant adsorbent, usually sourced from waste biomass and requiring little to no treatment. This makes them cheaper than conventional adsorbents. In this paper, green pea (Pisum sativum) haulm was used as a biosorbent... Read More about Agricultural Pea Waste as a Low-Cost Pollutant Biosorbent for Methylene Blue Removal: Adsorption Kinetics, Isotherm And Thermodynamic Studies.

First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents (2022)
Journal Article
Pope, E. L., Cartigny, M. J., Clare, M. A., Talling, P. J., Lintern, D. G., Vellinga, A., …Vendettuoli, D. (2022). First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents. Science Advances, 8(20), eabj3220. https://doi.org/10.1126/sciadv.abj3220

Until recently, despite being one of the most important sediment transport phenomena on Earth, few direct measurements of turbidity currents existed. Consequently, their structure and evolution were poorly understood, particularly whether they are de... Read More about First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents.

Managing estuaries under a changing climate: A case study of the Humber Estuary, UK (2022)
Journal Article
Lonsdale, J. A., Leach, C., Parsons, D., Barkwith, A., Manson, S., & Elliott, M. (2022). Managing estuaries under a changing climate: A case study of the Humber Estuary, UK. Environmental science & policy, 134, 75-84. https://doi.org/10.1016/j.envsci.2022.04.001

Estuaries are globally important zones for urban, recreational and commercial activities as well as supporting a range of habitats and species of significant ecological importance. The role of estuaries is recognised by the legislative framework that... Read More about Managing estuaries under a changing climate: A case study of the Humber Estuary, UK.

Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes? (2022)
Journal Article
Heijnen, M. S., Clare, M. A., Cartigny, M. J., Talling, P. J., Hage, S., Pope, E. L., …Hughes Clarke, J. E. (2022). Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes?. Earth and planetary science letters, 584, Article 117481. https://doi.org/10.1016/j.epsl.2022.117481

Submarine channels are the primary conduits for land-derived material, including organic carbon, pollutants, and nutrients, into the deep-sea. The flows (turbidity currents) that traverse these systems can pose hazards to seafloor infrastructure such... Read More about Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes?.

Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling (2022)
Journal Article
Sheng, W., Tapoglou, E., Ma, X., Taylor, C. J., Dorrell, R. M., Parsons, D. R., & Aggidis, G. (2022). Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling. Ocean engineering, 249, Article 110878. https://doi.org/10.1016/j.oceaneng.2022.110878

Current panel methods for wave-structure interactions employ the potential flow theory, which provide fast, reliable and relatively accurate predictions for the marine structures, and now some open source packages, NEMOH and HAMS, are available. In t... Read More about Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling.

On the turbulence dynamics induced by a surrogate seagrass canopy (2022)
Journal Article
Houseago, R. C., Hong, L., Cheng, S., Best, J. L., Parsons, D. R., & Chamorro, L. P. (2022). On the turbulence dynamics induced by a surrogate seagrass canopy. Journal of Fluid Mechanics, 934, Article A17. https://doi.org/10.1017/jfm.2021.1142

The distinct turbulence dynamics and transport modulated by a common seagrass species were investigated experimentally using a flexible surrogate canopy in a refractive-index-matching environment that enabled full optical access. The surrogate seagra... Read More about On the turbulence dynamics induced by a surrogate seagrass canopy.

The Influence of Three-Dimensional Topography on Turbulent Flow Structures Over Dunes in Unidirectional Flows (2021)
Journal Article
Hardy, R. J., Best, J. L., Marjoribanks, T. I., Parsons, D. R., & Ashworth, P. J. (2021). The Influence of Three-Dimensional Topography on Turbulent Flow Structures Over Dunes in Unidirectional Flows. Journal of Geophysical Research: Earth Surface, 126(12), Article e2021JF006121. https://doi.org/10.1029/2021JF006121

Dunes are the most prevalent bedform present in sand-bedded rivers and their morphology typically comprises multiple scales of three-dimensional topography. However, our understanding of flow over dunes is predicated largely on two-dimensional models... Read More about The Influence of Three-Dimensional Topography on Turbulent Flow Structures Over Dunes in Unidirectional Flows.

Sand mining far outpaces natural supply in a large alluvial river (2021)
Journal Article
Hackney, C. R., Vasilopoulos, G., Heng, S., Darbari, V., Walker, S., & Parsons, D. R. (2021). Sand mining far outpaces natural supply in a large alluvial river. Earth surface dynamics European Geosciences Union, 9(5), 1323-1334. https://doi.org/10.5194/esurf-9-1323-2021

The world's large rivers are facing reduced sediment loads due to anthropogenic activities such as hydropower development and sediment extraction. Globally, estimates of sand extraction from large river systems are lacking, in part due to the pervasi... Read More about Sand mining far outpaces natural supply in a large alluvial river.

2020-Vision: understanding climate (in)action through the emotional lens of loss (2021)
Journal Article
Jones, L., Halstead, F., Parsons, K., Le, H., Ha Bui, L. T., Hackney, C., & Parsons, D. (in press). 2020-Vision: understanding climate (in)action through the emotional lens of loss. Journal of the British Academy, 9(s5), 29-68. https://doi.org/10.5871/jba/009s5.029

We are the midst of a climate emergency requiring urgent climate action that is as yet unforthcoming on both the scale and at the speed needed. This paper considers this current state of inaction and how we might understand the processes of attitudin... Read More about 2020-Vision: understanding climate (in)action through the emotional lens of loss.