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All Outputs (125)

Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems (2020)
Journal Article
Hope, J. A., Malarkey, J., Baas, J. H., Peakall, J., Parsons, D. R., Manning, A. J., …Paterson, D. M. (2020). Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems. Limnology and Oceanography, 65(10), 2403-2419. https://doi.org/10.1002/lno.11461

This study focuses on the interactions between sediment stability and biological and physical variables that influence the erodibility across different habitats. Sampling at short-term temporal scales illustrated the persistence of the microphytobent... Read More about Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems.

I'll be dead by the time it happens: Children's Perceptions of Climate Change in the Mekong Delta, Vietnam (2020)
Presentation / Conference
Halstead, F., Parsons, D., Jones, L., & Hackney, C. (2020, May). I'll be dead by the time it happens: Children's Perceptions of Climate Change in the Mekong Delta, Vietnam. Paper presented at EGU General Assembly 2020 (European Geosciences Union), Sharing Geoscience Online

The Mekong Delta in Southern Vietnam is one of the most at risk places globally to the effects of climate change and sea level rise, specifically in terms of flooding. It is predicted to change drastically over the next 100 years, with additional hum... Read More about I'll be dead by the time it happens: Children's Perceptions of Climate Change in the Mekong Delta, Vietnam.

Direct evidence of a high-concentration basal layer in a submarine turbidity current (2020)
Journal Article
Maier, K. L., Paull, C. K., Cartigny, M. J., Simmons, S. M., Talling, P. J., Wang, Z., …Parsons, D. R. (in press). Direct evidence of a high-concentration basal layer in a submarine turbidity current. Deep Sea Research Part I: Oceanographic Research Papers, Article 103300. https://doi.org/10.1016/j.dsr.2020.103300

Submarine turbidity currents are one of the most important sediment transfer processes on earth. Yet the fundamental nature of turbidity currents is still debated; especially whether they are entirely dilute and turbulent, or a thin and dense basal l... Read More about Direct evidence of a high-concentration basal layer in a submarine turbidity current.

Drainage and erosion of Cambodia's Great Lake in the middle-late Holocene: the combined role of climatic drying, base-level fall and river capture (2020)
Journal Article
Darby, S. E., Langdon, P. G., Best, J. L., Leyland, J., Hackney, C., Marti, M., …Leng, M. J. (2020). Drainage and erosion of Cambodia's Great Lake in the middle-late Holocene: the combined role of climatic drying, base-level fall and river capture. Quaternary science reviews, 236, Article 106265. https://doi.org/10.1016/j.quascirev.2020.106265

We provide evidence for a large-scale geomorphic event in Cambodia’s great lake, the Tonlé Sap, during the middle Holocene. The present-day hydrology of the basin is dominated by an annual flood pulse where water from the Mekong River raises the lake... Read More about Drainage and erosion of Cambodia's Great Lake in the middle-late Holocene: the combined role of climatic drying, base-level fall and river capture.

Novel acoustic method provides first detailed measurements of sediment concentration structure within submarine turbidity currents (2020)
Journal Article
Simmons, S. M., Azpiroz-Zabala, M., Cartigny, M. J. B., Clare, M. A., Cooper, C., Parsons, D. R., …Talling, P. J. (2020). Novel acoustic method provides first detailed measurements of sediment concentration structure within submarine turbidity currents. Journal of Geophysical Research: Oceans, 125(5), Article e2019JC015904. https://doi.org/10.1029/2019JC015904

Turbidity currents transport prodigious volumes of sediment to the deep-sea. But there are very few direct measurements from oceanic turbidity currents, ensuring they are poorly understood. Recent studies have used acoustic Doppler current profilers... Read More about Novel acoustic method provides first detailed measurements of sediment concentration structure within submarine turbidity currents.

Influence of light and temperature cycles on the expression of circadian clock genes in the mussel Mytilus edulis (2020)
Journal Article
Chapman, E., Bonsor, B., Parsons, D. R., & Rotchell, J. (2020). Influence of light and temperature cycles on the expression of circadian clock genes in the mussel Mytilus edulis. Marine environmental research, 159, Article 104960. https://doi.org/10.1016/j.marenvres.2020.104960

Clock genes and environmental cues regulate essential biological rhythms. The blue mussel, Mytilus edulis, is an ecologically and economically important intertidal bivalve undergoing seasonal reproductive rhythms. We previously identified seasonal... Read More about Influence of light and temperature cycles on the expression of circadian clock genes in the mussel Mytilus edulis.

Dunes in the world’s big rivers are characterized by low-angle lee-side slopes and a complex shape (2020)
Journal Article
Cisneros, J., Best, J., van Dijk, T., Almeida, R. P. D., Amsler, M., Boldt, J., …Zhang, Y. (2020). Dunes in the world’s big rivers are characterized by low-angle lee-side slopes and a complex shape. Nature Geoscience, 13(2), 156-162. https://doi.org/10.1038/s41561-019-0511-7

Dunes are present in all the worlds’ big rivers and form critical agents of bedload transport, constitute appreciable sources of bed roughness and flow resistance, and generate stratification that is the most common depositional element of ancient al... Read More about Dunes in the world’s big rivers are characterized by low-angle lee-side slopes and a complex shape.

River bank instability from unsustainable sand mining in the lower Mekong River (2020)
Journal Article
Hackney, C. R., Darby, S., Parsons, D. R., Leyland, J., Best, J., Aalto, R., …Houseago, R. (2020). River bank instability from unsustainable sand mining in the lower Mekong River. Nature Sustainability, 3(3), 217-225. https://doi.org/10.1038/s41893-019-0455-3

Recent growth of the construction industry has fuelled demand for sand, with considerable volumes being extracted from the world’s large rivers. Sediment transport from upstream naturally replenishes sediment stored in river beds, but the absence of... Read More about River bank instability from unsustainable sand mining in the lower Mekong River.

What determines the downstream evolution of turbidity currents? (2019)
Journal Article
Heerema, C. J., Talling, P. J., Cartigny, M. J., Paull, C. K., Bailey, L., Simmons, S. M., …Pope, E. (2020). What determines the downstream evolution of turbidity currents?. Earth and planetary science letters, 532, Article 116023. https://doi.org/10.1016/j.epsl.2019.116023

© 2019 Seabed sediment flows called turbidity currents form some of the largest sediment accumulations, deepest canyons and longest channel systems on Earth. Only rivers transport comparable sediment volumes over such large areas; but there are far f... Read More about What determines the downstream evolution of turbidity currents?.

Climate Change and Children: Positioning Children as Stakeholders within the Climate Change Debate in the Mekong Delta, Vietnam. (2019)
Presentation / Conference
Halstead, F., & Parsons, D. R. (2019, December). Climate Change and Children: Positioning Children as Stakeholders within the Climate Change Debate in the Mekong Delta, Vietnam. Poster presented at American Geophysical Union, Fall Meeting 2019, San Francisco

Home to almost 20 million people, the Mekong Delta in Vietnam is one of the most at risk regions globally in terms of exposure to climate change and sea-level rise, notably in terms of future flood risk. Societal resilience to climate change and floo... Read More about Climate Change and Children: Positioning Children as Stakeholders within the Climate Change Debate in the Mekong Delta, Vietnam..

Late Pleistocene to Holocene sedimentology, palaeoceanography and micropalaeontology of the Uruguayan continental slope (2019)
Thesis
McGuire, C. J. (2019). Late Pleistocene to Holocene sedimentology, palaeoceanography and micropalaeontology of the Uruguayan continental slope. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4223202

This study utilises an extensive set of sediment cores collected from a largely unstudied contourite and turbidite depositional system located on the Uruguay continental margin to identify a method of distinguishing deposits in the deep sea that are... Read More about Late Pleistocene to Holocene sedimentology, palaeoceanography and micropalaeontology of the Uruguayan continental slope.

Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes (2019)
Journal Article
Hage, S., Cartigny, M. J. B., Sumner, E. J., Clare, M. A., Hughes Clarke, J., Talling, P. J., …Watts, C. (2019). Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes. Geophysical research letters, 46(20), 11310-11320. https://doi.org/10.1029/2019gl084526

©2019. The Authors. Rivers (on land) and turbidity currents (in the ocean) are the most important sediment transport processes on Earth. Yet how rivers generate turbidity currents as they enter the coastal ocean remains poorly understood. The current... Read More about Direct monitoring reveals initiation of turbidity currents from extremely dilute river plumes.

Sediment and organic carbon transport and deposition driven by internal tides along Monterey Canyon, offshore California (2019)
Journal Article
Maier, K. L., Rosenberger, K. J., Paull, C. K., Gwiazda, R., Gales, J., Lorenson, T., …Cartigny, M. J. (2019). Sediment and organic carbon transport and deposition driven by internal tides along Monterey Canyon, offshore California. Deep Sea Research Part I: Oceanographic Research Papers, 153, Article 103108. https://doi.org/10.1016/j.dsr.2019.103108

© 2019 Elsevier Ltd Submarine canyons are globally important conduits for sediment and organic carbon transport into the deep sea. Using a novel dataset from Monterey Canyon, offshore central California, that includes an extensive array of water colu... Read More about Sediment and organic carbon transport and deposition driven by internal tides along Monterey Canyon, offshore California.

Linking direct measurements of turbidity currents to submarine canyon-floor deposits (2019)
Journal Article
Maier, K. L., Gales, J. A., Paull, C. K., Rosenberger, K., Talling, P. J., Simmons, S. M., …Sumner, E. J. (2019). Linking direct measurements of turbidity currents to submarine canyon-floor deposits. Frontiers in Earth Science, 7, Article 144. https://doi.org/10.3389/feart.2019.00144

Submarine canyons are conduits for episodic and powerful sediment density flows (commonly called turbidity currents) that move globally significant amounts of terrestrial sediment and organic carbon into the deep sea, forming some of the largest sedi... Read More about Linking direct measurements of turbidity currents to submarine canyon-floor deposits.

Integrating field and laboratory approaches for ripple development in mixed sand–clay–EPS (2019)
Journal Article
Baas, J. H., Baker, M. L., Malarkey, J., Bass, S. J., Manning, A. J., Hope, J. A., …Thorne, P. D. (2019). Integrating field and laboratory approaches for ripple development in mixed sand–clay–EPS. Sedimentology, 66(7), 2749-2768. https://doi.org/10.1111/sed.12611

The shape and size of sedimentary bedforms play a key role in the reconstruction of sedimentary processes in modern and ancient environments. Recent laboratory experiments have shown that bedforms in mixed sand–clay develop at a slower rate and ofte... Read More about Integrating field and laboratory approaches for ripple development in mixed sand–clay–EPS.

Self-sharpening induces jet-like structure in seafloor gravity currents (2019)
Journal Article
Dorrell, R. M., Peakall, J., Darby, S. E., Parsons, D. R., Johnson, J., Sumner, E. J., …Tezcan, D. (2019). Self-sharpening induces jet-like structure in seafloor gravity currents. Nature communications, 10(1), Article 1381. https://doi.org/10.1038/s41467-019-09254-2

Gravity currents are the primary means by which sediments, solutes and heat are transported across the ocean-floor. Existing theory of gravity current flow employs a statistically-stable model of turbulent diffusion that has been extant since the 196... Read More about Self-sharpening induces jet-like structure in seafloor gravity currents.

Modelling the morphodynamics of sandy coastal systems under a changing climate (2019)
Thesis
Morris, C. S. (2019). Modelling the morphodynamics of sandy coastal systems under a changing climate. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4222460

Coasts are vulnerable to changing environmental conditions and are likely to be affected by predicted sea level rise and wave climate variations over the next century. Predicting the likely response of coastal systems to these changes, including alte... Read More about Modelling the morphodynamics of sandy coastal systems under a changing climate.

Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery (2019)
Journal Article
Strick, R. J., Ashworth, P. J., Sambrook Smith, G. H., Nicholas, A. P., Best, J. L., Lane, S. N., …Dale, J. (2019). Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery. Earth surface processes and landforms : the journal of the British Geomorphological Research Group, 44(4), 953-972. https://doi.org/10.1002/esp.4558

Images from specially‐commissioned aeroplane sorties (manned aerial vehicle, MAV), repeat unmanned aerial vehicle (UAV) surveys, and Planet CubeSat satellites are used to quantify dune and bar dynamics in the sandy braided South Saskatchewan River, C... Read More about Quantification of bedform dynamics and bedload sediment flux in sandy braided rivers from airborne and satellite imagery.

Dune dynamics under unsteady flows (2019)
Thesis
Hu, H. (2019). Dune dynamics under unsteady flows. (Thesis). University of Hull. Retrieved from https://hull-repository.worktribe.com/output/4221728

River bedforms keep translating and deforming perpetually during their migration. During flow field unsteadiness they also change in size and shape over time and in space. However, our knowledge of how bedforms adapt to changing flows remains inadequ... Read More about Dune dynamics under unsteady flows.

On the causes of pulsing in continuous turbidity currents (2018)
Journal Article
Kostaschuk, R., Nasr-Azadani, M. M., Meiburg, E., Wei, T., Chen, Z., Negretti, M. E., …Parsons, D. R. (2018). On the causes of pulsing in continuous turbidity currents. Journal of Geophysical Research: Earth Surface, 123(11), 2827-2843. https://doi.org/10.1029/2018JF004719

Velocity pulsing has previously been observed in continuous turbidity currents in lakes and reservoirs, even though the input flow is steady. Several different mechanisms have been ascribed to the generation of these fluctuations, including Rayleigh‐... Read More about On the causes of pulsing in continuous turbidity currents.