Skip to main content

Research Repository

Advanced Search

All Outputs (94)

Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow (2024)
Journal Article
Azpiroz-Zabala, M., Sumner, E. J., Cartigny, M. J., Peakall, J., Clare, M. A., Darby, S. E., …Johnson, J. (2024). Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow. The Depositional Record, https://doi.org/10.1002/dep2.265

Submarine channels are key features for the transport of flow and nutrients into deep water. Previous studies of their morphology and channel evolution have treated these systems as abiotic, and therefore assume that physical processes are solely res... Read More about Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow.

Conversations on grief and hope: a collaborative autoethnographic account exploring the lifeworlds of international youth engaged with climate action (2023)
Journal Article
Jones, L., Parsons, K. J., Halstead, F., Ngoc Nguyen, D. N., Pham, H. T., Pham, D. L., …Parsons, D. R. (2023). Conversations on grief and hope: a collaborative autoethnographic account exploring the lifeworlds of international youth engaged with climate action. Journal of the British Academy, 11(S3), 69-117. https://doi.org/10.5871/JBA/011S3.069

This paper explores the lifeworlds of international youth involved in climate and/or environmental social action, narratives that have been largely absent from a literature that has tended to focus on ‘traditional’ youth activists located in the urba... Read More about Conversations on grief and hope: a collaborative autoethnographic account exploring the lifeworlds of international youth engaged with climate action.

Real-time social media sentiment analysis for rapid impact assessment of floods (2023)
Journal Article
Bryan-Smith, L., Godsall, J., George, F., Egode, K., Dethlefs, N., & Parsons, D. (2023). Real-time social media sentiment analysis for rapid impact assessment of floods. Computers & geosciences, 178, Article 105405. https://doi.org/10.1016/j.cageo.2023.105405

Traditional approaches to flood modelling mostly rely on hydrodynamic physical simulations. While these simulations can be accurate, they are computationally expensive and prohibitively so when thinking about real-time prediction based on dynamic env... Read More about Real-time social media sentiment analysis for rapid impact assessment of floods.

Inadequacy of fluvial energetics for describing gravity current autosuspension (2023)
Journal Article
Fukuda, S., de Vet, M. G., Skevington, E. W., Bastianon, E., Fernández, R., Wu, X., …Dorrell, R. M. (2023). Inadequacy of fluvial energetics for describing gravity current autosuspension. Nature communications, 14(1), Article 2288. https://doi.org/10.1038/s41467-023-37724-1

Gravity currents, such as sediment-laden turbidity currents, are ubiquitous natural flows that are driven by a density difference. Turbidity currents have provided vital motivation to advance understanding of this class of flows because their enigmat... Read More about Inadequacy of fluvial energetics for describing gravity current autosuspension.

Detailed monitoring reveals the nature of submarine turbidity currents (2023)
Journal Article
Talling, P. J., Cartigny, M., Pope, E., Baker, M., Clare, M., Hage, S., …Maier, K. L. (2023). Detailed monitoring reveals the nature of submarine turbidity currents. Nature Reviews Earth & Environment, https://doi.org/10.1038/s43017-023-00458-1

Seafloor sediment flows, called turbidity currents, form the largest sediment accumulations, deepest canyons and longest channels on Earth. It was once thought that turbidity currents were impractical to measure in action, especially given their abil... Read More about Detailed monitoring reveals the nature of submarine turbidity currents.

Effect of hydro-climate variation on biofilm dynamics and its impact in intertidal environments (2022)
Journal Article
Bastianon, E., Hope, J. A., Dorrell, R. M., & Parsons, D. R. (2022). Effect of hydro-climate variation on biofilm dynamics and its impact in intertidal environments. Earth surface dynamics European Geosciences Union, 10(6), 1115-1140. https://doi.org/10.5194/esurf-10-1115-2022

Shallow tidal environments are very productive ecosystems but are sensitive to environmental changes and sea level rise. Bio-morphodynamic control of these environments is therefore a crucial consideration; however, the effect of small-scale biologic... Read More about Effect of hydro-climate variation on biofilm dynamics and its impact in intertidal environments.

Rapid megaflood-triggered base-level rise on Mars (2022)
Journal Article
Ahmed, J., Peakall, J., Balme, M., & Parsons, D. R. (2023). Rapid megaflood-triggered base-level rise on Mars. Geology, 51(1), 28-32. https://doi.org/10.1130/G50277.1

The existence of ancient fluvial systems on Mars is widely accepted, but little is known about how quickly they formed, or what environmental conditions controlled their evolution. We analyzed a sequence of well-preserved inner-bank bar deposits with... Read More about Rapid megaflood-triggered base-level rise on Mars.

Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming (2022)
Journal Article
Pope, E. L., Heijnen, M., Talling, P., Jacinto, R. S., Gaillot, A., Baker, M., …Urlaub, M. (in press). Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming. Nature Geoscience, https://doi.org/10.1038/s41561-022-01017-x

Landslide-dams, which are often transient, can strongly affect the geomorphology, and sediment and geochemical fluxes, within subaerial fluvial systems. The potential occurrence and impact of analogous landslide-dams in submarine canyons has, however... Read More about Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming.

Microwave-Assisted Hydrothermal Carbonisation of Waste Biomass: The Effect of Process Conditions on Hydrochar Properties (2022)
Journal Article
Holliday, M. C., Parsons, D. R., & Zein, S. H. (2022). Microwave-Assisted Hydrothermal Carbonisation of Waste Biomass: The Effect of Process Conditions on Hydrochar Properties. Processes, 10(9), Article 1756. https://doi.org/10.3390/pr10091756

Hydrochars are an alternative form of biochar produced by hydrothermal carbonisation (HTC), a potentially cheaper and greener method. In this paper, the effect of multiple variables on hydrochar properties was investigated. Waste biomass was converte... Read More about Microwave-Assisted Hydrothermal Carbonisation of Waste Biomass: The Effect of Process Conditions on Hydrochar Properties.

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.

Time‐Domain Implementation and Analyses of Multi‐Motion Modes of Floating Structures (2022)
Journal Article
Sheng, W., Tapoglou, E., Ma, X., Taylor, C. J., Dorrell, R., Parsons, D. R., & Aggidis, G. (2022). Time‐Domain Implementation and Analyses of Multi‐Motion Modes of Floating Structures. Journal of Marine Science and Engineering, 10(5), Article 662. https://doi.org/10.3390/jmse10050662

The study of wave‐structure interactions involving nonlinear forces would often make use of the popular hybrid frequency–time domain method. In the hybrid method, the frequency‐domain analysis could firstly provide the reliable and accurate dynamic p... Read More about Time‐Domain Implementation and Analyses of Multi‐Motion Modes of Floating Structures.

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.

The Coastline Evolution Model 2D (CEM2D) V1.1 (2021)
Journal Article
Leach, C., Coulthard, T., Barkwith, A., Parsons, D. R., & Manson, S. (2021). The Coastline Evolution Model 2D (CEM2D) V1.1. Geoscientific Model Development, 14, 5507-5523. https://doi.org/10.5194/gmd-14-5507-2021

Coasts are among the most intensely used environments on the planet, but they also present dynamic and unique hazards, including flooding and erosion. Sea level rise and changing wave climates will alter patterns of erosion and deposition, but some e... Read More about The Coastline Evolution Model 2D (CEM2D) V1.1.

Dynamics of salt intrusion in the Mekong Delta: Results of field observations and integrated coastal-inland modelling (2021)
Journal Article
Eslami, S., Hoekstra, P., Kernkamp, H. W. J., Nguyen Trung, N., Do Duc, D., Nguyen Nghia, H., …Van Der Vegt, M. (2021). Dynamics of salt intrusion in the Mekong Delta: Results of field observations and integrated coastal-inland modelling. Earth surface dynamics European Geosciences Union, 9(4), 953-976. https://doi.org/10.5194/esurf-9-953-2021

On the list of challenges facing the world largest deltas, increased saline water intrusion (SWI) in the surface water system and its role in jeopardizing freshwater supply are often ranked very high. Yet, detailed process-based studies of SWI at the... Read More about Dynamics of salt intrusion in the Mekong Delta: Results of field observations and integrated coastal-inland modelling.