All Outputs (139)

Laboratory study on the effects of hydro kinetic turbines on hydrodynamics and sediment dynamics (2018)
Journal Article
Ramírez-Mendoza, R., Amoudry, L., Thorne, P., Cooke, R., McLelland, S., Jordan, L., Simmons, S., Parsons, D., & Murdoch, L. (2018). Laboratory study on the effects of hydro kinetic turbines on hydrodynamics and sediment dynamics. Renewable energy, 129(Part A), 271-284. https://doi.org/10.1016/j.renene.2018.05.094

© 2018 The Authors The need for hydrokinetic turbine wake characterisation and their environmental impact has led to a number of studies. However, a small number of them have taken into account mobile sediment bed effects. The aim of the present work... Read More about Laboratory study on the effects of hydro kinetic turbines on hydrodynamics and sediment dynamics.

Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions (2018)
Journal Article
Lichtman, I. D., Baas, J. H., Amoudry, L. O., Thorne, P. D., Malarkey, J., Hope, J. A., Peakall, J., Paterson, D. M., Bass, S. J., Cooke, R. D., Manning, A. J., Davies, A. G., Parsons, D. R., & Ye, L. (2018). Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions. Geomorphology, 315, 17-32. https://doi.org/10.1016/j.geomorph.2018.04.016

Many coastal and estuarine environments are dominated by mixtures of non-cohesive sand and cohesive mud. The migration rate of bedforms, such as ripples and dunes, in these environments is important in determining bed material transport rates to info... Read More about Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions.

How to recognize crescentic bedforms formed by supercritical turbidity currents in the geologic record: Insights from active submarine channels (2018)
Journal Article
Hage, S., Cartigny, M. J., Clare, M. A., Sumner, E. J., Vendettuoli, D., Clarke, J. E., Hubbard, S. M., Talling, P. J., Gwyn Lintern, D., Stacey, C. D., Englert, R. G., Vardy, M. E., Hunt, J. E., Yokokawa, M., Parsons, D. R., Hizzett, J. L., Azpiroz-Zabala, M., & Vellinga, A. J. (2018). How to recognize crescentic bedforms formed by supercritical turbidity currents in the geologic record: Insights from active submarine channels. Geology, 46(6), 563-566. https://doi.org/10.1130/G40095.1

© 2018 Geological Society of America. Submarine channels have been important throughout geologic time for feeding globally significant volumes of sediment f rom land to the deep sea. Modern observations show that submarine channels can be sculpted by... Read More about How to recognize crescentic bedforms formed by supercritical turbidity currents in the geologic record: Insights from active submarine channels.

Beyond equilibrium: Re-evaluating physical modelling of fluvial systems to represent climate changes (2018)
Journal Article
Baynes, E. R., van de Lageweg, W. I., McLelland, S. J., Parsons, D. R., Aberle, J., Dijkstra, J., Henry, P.-Y., Rice, S. P., Thom, M., & Moulin, F. (2018). Beyond equilibrium: Re-evaluating physical modelling of fluvial systems to represent climate changes. Earth-Science Reviews, 181, 82-97. https://doi.org/10.1016/j.earscirev.2018.04.007

© 2018 Elsevier B.V. The interactions between water, sediment and biology in fluvial systems are complex and driven by multiple forcing mechanisms across a range of spatial and temporal scales. In a changing climate, some meteorological drivers are e... Read More about Beyond equilibrium: Re-evaluating physical modelling of fluvial systems to represent climate changes.

Quantifying biostabilisation effects of biofilm-secreted and extracted extracellular polymeric substances (EPSs) on sandy substrate (2018)
Journal Article
Van De Lageweg, W. I., McLelland, S. J., & Parsons, D. R. (2018). Quantifying biostabilisation effects of biofilm-secreted and extracted extracellular polymeric substances (EPSs) on sandy substrate. Earth surface dynamics ESURF ; an interactive open access journal of the European Geosciences Union, 6(1), 203-215. https://doi.org/10.5194/esurf-6-203-2018

© Author(s) 2018. Microbial assemblages ( < q > biofilms < /q > ) preferentially develop at water-sediment interfaces and are known to have a considerable influence on sediment stability and erodibility. There is potential for significant impacts on... Read More about Quantifying biostabilisation effects of biofilm-secreted and extracted extracellular polymeric substances (EPSs) on sandy substrate.

Low-angle dunes in the Changjiang (Yangtze) Estuary: Flow and sediment dynamics under tidal influence (2018)
Journal Article
Hackney, C. R., Hu, H., Wei, T., Yang, Z., Hackney, C., & Parsons, D. R. (2018). Low-angle dunes in the Changjiang (Yangtze) Estuary: Flow and sediment dynamics under tidal influence. Estuarine, coastal and shelf science, 205, 110-122. https://doi.org/10.1016/j.ecss.2018.03.009

It has long been highlighted that important feedbacks exist between river bed morphology, sediment transport and the turbulent flow field and that these feedbacks change in response to forcing mechanisms. However, our current understanding of bedform... Read More about Low-angle dunes in the Changjiang (Yangtze) Estuary: Flow and sediment dynamics under tidal influence.

Wake hydrodynamics downstream from a horizontal axis turbine under current flow and waves (2018)
Thesis
Jordan, L.-B. Wake hydrodynamics downstream from a horizontal axis turbine under current flow and waves. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4220800

Due to concerns over the potential impacts of climate change on the environment, there is a growing interest in developing renewable forms of energy. Tidal streams are a potential source of renewable energy that can be harnessed for electricity gener... Read More about Wake hydrodynamics downstream from a horizontal axis turbine under current flow and waves.

A General Model for the Helical Structure of Geophysical Flows in Channel Bends (2017)
Journal Article
Azpiroz-Zabala, M., Cartigny, M. J. B., Sumner, E. J., Clare, M. A., Talling, P. J., Parsons, D. R., & Cooper, C. (2017). A General Model for the Helical Structure of Geophysical Flows in Channel Bends. Geophysical research letters, 44(23), 11932-11941. https://doi.org/10.1002/2017gl075721

Meandering channels formed by geophysical flows (e.g., rivers and seafloor turbidity currents) include the most extensive sediment transport systems on Earth. Previous measurements from rivers show how helical flow at meander bends plays a key role i... Read More about A General Model for the Helical Structure of Geophysical Flows in Channel Bends.

Seasonal expression patterns of clock-associated genes in the blue mussel Mytilus edulis (2017)
Journal Article
Chapman, E. C., O’Dell, A. R., Meligi, N. M., Parsons, D. R., & Rotchell, J. M. (2017). Seasonal expression patterns of clock-associated genes in the blue mussel Mytilus edulis. Chronobiology International, 34(9), 1300-1314. https://doi.org/10.1080/07420528.2017.1363224

Environmental cues allow organisms to synchronise their internal biological rhythms with external environmental cycles. These rhythms are regulated on a molecular level by oscillating interactions between clock genes and their proteins. Light is a pa... Read More about Seasonal expression patterns of clock-associated genes in the blue mussel Mytilus edulis.

Newly recognized turbidity current structure can explain prolonged flushing of submarine canyons (2017)
Journal Article
Azpiroz-Zabala, M., Cartigny, M. J. B., Talling, P. J., Parsons, D. R., Sumner, E. J., Clare, M. A., Simmons, S. M., Cooper, C., & Pope, E. L. (2017). Newly recognized turbidity current structure can explain prolonged flushing of submarine canyons. Science Advances, 3(10), Article e1700200. https://doi.org/10.1126/sciadv.1700200

Seabed-hugging flows called turbidity currents are the volumetrically most important process transporting sediment across our planet and form its largest sediment accumulations. We seek to understand the internal structure and behavior of turbidity c... Read More about Newly recognized turbidity current structure can explain prolonged flushing of submarine canyons.

Wave-induced ripple development in mixed clay-sand substrates (2017)
Thesis
Wu, X. Wave-induced ripple development in mixed clay-sand substrates. (Thesis). University of Hull. https://hull-repository.worktribe.com/output/4220909

Wave-induced ripples are significant tools in reconstructing a range of paleo-environments and in establishing predictors of sediment transport in modern estuarine, marine and coastal environments. Previous studies, however, have focused on the dynam... Read More about Wave-induced ripple development in mixed clay-sand substrates.

Nonlinear Modeling and Verification of a Heaving Point Absorber for Wave Energy Conversion (2017)
Journal Article
Guo, B., Patton, R., Jin, S., Gilbert, J., & Parsons, D. (2017). Nonlinear Modeling and Verification of a Heaving Point Absorber for Wave Energy Conversion. IEEE Transactions on Sustainable Energy, 9(1), 453-461. https://doi.org/10.1109/tste.2017.2741341

Although the heaving Point Absorber (PA) concept is well known in wave energy conversion research, few studies focus on appropriate modelling of non-linear fluid viscous and mechanical friction dynamics. Even though these concepts are known to have n... Read More about Nonlinear Modeling and Verification of a Heaving Point Absorber for Wave Energy Conversion.

The influence of flow discharge variations on the morphodynamics of a diffluence-confluence unit on a large river: Impacts of discharge variation on a diffluence-confluence unit (2017)
Journal Article
Hackney, C. R., Darby, S. E., Parsons, D. R., Leyland, J., Aalto, R., Nicholas, A. P., & Best, J. L. (2018). The influence of flow discharge variations on the morphodynamics of a diffluence-confluence unit on a large river: Impacts of discharge variation on a diffluence-confluence unit. Earth surface processes and landforms : the journal of the British Geomorphological Research Group, 43(2), 349-362. https://doi.org/10.1002/esp.4204

© 2017 The Authors. Earth Surface Processes and Landforms published by John Wiley & Sons Ltd. Bifurcations are key geomorphological nodes in anabranching and braided fluvial channels, controlling local bed morphology, the routing of sediment and wa... Read More about The influence of flow discharge variations on the morphodynamics of a diffluence-confluence unit on a large river: Impacts of discharge variation on a diffluence-confluence unit.

Sustainable rice cultivation in the deep flooded zones of the Vietnamese Mekong Delta (2017)
Journal Article
Chapman, A., Darby, S., Tompkins, E., Hackney, C., Leyland, J., Van, P. D. T., Pham, T. V., Parsons, D., Aalto, R., & Nicholas, A. (2017). Sustainable rice cultivation in the deep flooded zones of the Vietnamese Mekong Delta. Vietnam Journal of Science, Technology and Engineering, 59(2), 34-38. https://doi.org/10.31276/VJSTE.59%282%29.34

This paper explains how the management of the full-dyke system in the deep flooded zones of the Vietnamese Mekong Delta affects rice cultivation, and outlines how alternative dyke management strategies could offer more sustainable adaptations in the... Read More about Sustainable rice cultivation in the deep flooded zones of the Vietnamese Mekong Delta.

An evaluation of the use of a multibeam echo-sounder for observations of suspended sediment (2017)
Journal Article
Simmons, S. M., Parsons, D. R., Best, J. L., Oberg, K. A., Czuba, J. A., & Keevil, G. M. (2017). An evaluation of the use of a multibeam echo-sounder for observations of suspended sediment. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 126, 81-90. https://doi.org/10.1016/j.apacoust.2017.05.004

The theory relating the acoustic backscatter from suspended sediments to the mass concentration of particles has been developed over several decades and is now routinely applied to provide measurements for commercial and scientific applications. Sing... Read More about An evaluation of the use of a multibeam echo-sounder for observations of suspended sediment.

An investigation of the wake recovery of two model horizontal-axis tidal stream turbines measured in a laboratory flume with Particle Image Velocimetry (2017)
Journal Article
Simmons, S. M., McLelland, S. J., Parsons, D. R., Jordan, L.-B., Murphy, B. J., & Murdoch, L. (2018). An investigation of the wake recovery of two model horizontal-axis tidal stream turbines measured in a laboratory flume with Particle Image Velocimetry. Journal of Hydro-environment Research, 19, 179-188. https://doi.org/10.1016/j.jher.2017.03.003

© 2017 International Association for Hydro-environment Engineering and Research, Asia Pacific Division. The uptake of tidal stream-turbine (TST) technology lags other renewable energy sources despite the advantages of predictability, stability and in... Read More about An investigation of the wake recovery of two model horizontal-axis tidal stream turbines measured in a laboratory flume with Particle Image Velocimetry.

Three-dimensional flow structure and bed morphology in large elongate meander loops with different outer bank roughness characteristics (2016)
Journal Article
Konsoer, K. M., Rhoads, B. L., Best, J. L., Langendoen, E. J., Abad, J. D., Parsons, D. R., & García, M. H. (2016). Three-dimensional flow structure and bed morphology in large elongate meander loops with different outer bank roughness characteristics. Water Resources Research, 52(12), 9621-9641. https://doi.org/10.1002/2016wr019040

© 2016. American Geophysical Union. All Rights Reserved. Few studies have examined the three-dimensional flow structure and bed morphology within elongate loops of large meandering channels. The present study focuses on the spatial patterns of three-... Read More about Three-dimensional flow structure and bed morphology in large elongate meander loops with different outer bank roughness characteristics.

Extreme flood-driven fluvial bank erosion and sediment loads: direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro-acoustic techniques: Direct measurement of flood-driven erosion using MLS and MBES (2016)
Journal Article
Leyland, J., Hackney, C. R., Darby, S. E., Parsons, D. R., Best, J. L., Nicholas, A. P., Aalto, R., & Lague, D. (2017). Extreme flood-driven fluvial bank erosion and sediment loads: direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro-acoustic techniques: Direct measurement of flood-driven erosion using MLS and MBES. Earth surface processes and landforms : the journal of the British Geomorphological Research Group, 42(2), 334-346. https://doi.org/10.1002/esp.4078

Copyright © 2016 John Wiley & Sons, Ltd. This methods paper details the first attempt at monitoring bank erosion, flow and suspended sediment at a site during flooding on the Mekong River induced by the passage of tropical cyclones. We deployed int... Read More about Extreme flood-driven fluvial bank erosion and sediment loads: direct process measurements using integrated Mobile Laser Scanning (MLS) and hydro-acoustic techniques: Direct measurement of flood-driven erosion using MLS and MBES.

Does the canopy mixing layer model apply to highly flexible aquatic vegetation? Insights from numerical modelling (2016)
Journal Article
Marjoribanks, T. I., Hardy, R. J., Lane, S. N., & Parsons, D. R. (2017). Does the canopy mixing layer model apply to highly flexible aquatic vegetation? Insights from numerical modelling. Environmental Fluid Mechanics, 17(2), 277-301. https://doi.org/10.1007/s10652-016-9482-z

© 2016, The Author(s). Vegetation is a characteristic feature of shallow aquatic flows such as rivers, lakes and coastal waters. Flow through and above aquatic vegetation canopies is commonly described using a canopy mixing layer analogy which provid... Read More about Does the canopy mixing layer model apply to highly flexible aquatic vegetation? Insights from numerical modelling.

Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity (2016)
Journal Article
Darby, S. E., Hackney, C. R., Leyland, J., Kummu, M., Lauri, H., Parsons, D. R., Best, J. L., Nicholas, A. P., & Aalto, R. E. (2016). Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity. Nature, 539(7628), 276-279. https://doi.org/10.1038/nature19809

© 2016 Macmillan Publishers Limited, part of Springer Nature. All rights reserved. The world's rivers deliver 19 billion tonnes of sediment to the coastal zone annually, with a considerable fraction being sequestered in large deltas, home to over 500... Read More about Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity.