Journal Articles

Quan, LQ, Hackney, CR, Vasilopoulos, G, Coulthard, T, Hung, NN, Darby, SE, Parsons, DR (2025) Sand-mining-driven reduction in Tonle Sap Lake’s critical flood pulse, Nature Sustainability, 8(12), pp.1455-1466, DOI: 10.1038/s41893-025-01677-8.

Alvarez Barrantes, L, Baar, A, Fernandez, R, Hackney, C, Parsons, D, Dorrell, R (2025) Modelling the transport and deposition of sediment-microplastics fluxes in a braided river, using Delft3D, Philosophical Transactions of the Royal Society A Mathematical Physical and Engineering Sciences, 383(2307), ISSN: 1364-503X. DOI: 10.1098/rsta.2024.0442.

Binda, G, Chandra, S, Costa, M, Galgani, L, Kalčiková, G, Leu, E, Loiselle, SA, Nizzetto, L, Noble, P, Nava, V, Parsons, DR, Šupraha, L (2025) Rethinking plastic as a habitat modifier and a transport vector for organisms in aquatic environments, Limnology and Oceanography Letters, ISSN: 2378-2242. DOI: 10.1002/lol2.70071.

Wolstenholme, J, Skinner, CJ, Milan, DJ, Thomas, RE, Parsons, D (2025) Localised geomorphic response to channel-spanning leaky wooden dams, Earth Surface Dynamics, 13(4), pp.647-663, ISSN: 2196-6311. DOI: 10.5194/esurf-13-647-2025.

Lotsari, ES, de Vet, MGW, Murphy, BJ, McLelland, SJ, Parsons, D (2025) Small-scale riverbank erosion experiments in freezing and thawing conditions, Water Resources Research, 61(7), e2024WR037569, ISSN: 0043-1397. DOI: 10.1029/2024WR037569.

Halstead, F, Parsons, K, Vo, T, Williams, AL, Jones, L, Le, H, Nguyen, A, Hackney, C, Parsons, D (2025) Place-based and intergenerational storytelling for youth climate action: Moving beyond participation and towards momentum, Children's Geographies, ISSN: 1473-3285. DOI: 10.1080/14733285.2025.2519027.

Hackney, CR, Cisneros, J, Heng, S, Darby, SE, Leyland, J, Konsoer, K, Parsons, D (2025) Increased hydraulic roughness in alluvial rivers created by sand-mining sculpted bed features, Journal of Geophysical Research (JGR): Earth Surface, 130(6), e2024JF008189, ISSN: 2169-9003. DOI: 10.1029/2024JF008189.

Parsons, D, Bird, A, Walding, N, Rebecca Williams, Rowley, P, Dowey, N (2025) Behaviours of pyroclastic and analogue materials, in dry and wet environments, for use in experimental modelling of pyroclastic density currents, Volcanica, 8(1), pp.261-285, DOI: 10.30909/vol/oxkm9163.

Wortmann, M, Slater, L, Hawker, L, Liu, Y, Neal, J, Zhang, B, Schwenk, J, Allen, G, Ashworth, P, Boothroyd, R, Cloke, H, Delorme, P, Gebrechorkos, SH, Griffith, H, Leyland, J, McLelland, S, Nicholas, AP, Sambrook-Smith, G, Vahidi, E, Parsons, D, Darby, SE (2025) Global River Topology (GRIT): A Bifurcating River Hydrography, Water Resources Research, 61(5), e2024WR038308, ISSN: 0043-1397. DOI: 10.1029/2024WR038308.

Walding, N, Williams, R, Dowey, N, Rowley, P, Thomas, M, Osman, S, Johnson, M, Parsons, D (2025) The influence of moisture on ash strength: implications for understanding volcanic stratigraphy, Bulletin of Volcanology, 87(6), 39, ISSN: 0258-8900. DOI: 10.1007/s00445-025-01821-4.

R. Hurrell, E, M. Hutchinson, S, Yorke, L, C. Batty, L, Jane Bunting, M, Swanton, D, Parsons, D, A.McDougall, D (2025) The role of virtual field trips in Geography higher education: A perspective paper, Area, 57(3), e70011, ISSN: 0004-0894. DOI: 10.1111/area.70011.

Wolstenholme, J, Skinner, CJ, Milan, D, Thomas, RE, Parsons, D (2025) Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j, Geoscientific Model Development, 18(5), pp.1395-1411, DOI: 10.5194/gmd-18-1395-2025.

Wolstenholme, J, Cooper, F, Thomas, RE, Ahmed, J, Parsons, K, Parsons, D (2025) Automated identification of hedgerows and hedgerow gaps using deep learning, Remote Sensing in Ecology and Conservation, 11(4), pp.411-424, ISSN: 2056-3485. DOI: 10.1002/rse2.432.

Mendrik, F, Hackney, CR, Cumming, VM, Waller, C, Hak, D, Dorrell, R, Hung, NN, Parsons, DR (Accepted for publication) The transport and vertical distribution of microplastics in the Mekong River, SE Asia, Journal of Hazardous Materials, 484, pp.136762-136762, ISSN: 0304-3894. DOI: 10.1016/j.jhazmat.2024.136762.

Malarkey, J, Pollard, EM, Fernandez, R, Wu, X, Baas, JH, Parsons, D (2024) Effect of bed clay on surface water-wave reconstruction from ripples, Scientific Reports, 14, 30688, ISSN: 2045-2322. DOI: 10.1038/s41598-024-78821-5.

L. Baker, M, J. Talling, P, Burnett, R, L. Pope, E, C. Ruffell, S, Urlaub, M, A. Clare, M, Jenkins, J, Dietze, M, Neasham, J, Silva Jacinto, R, Hage, S, Hasenhündl, M, M. Simmons, S, J. Heerema, C, S. Heijnen, M, Kunath, P, J. B. Cartigny, M, McGhee, C, Parsons, D (2024) Seabed seismographs reveal duration and structure of longest runout sediment flows on earth, Geophysical Research Letters, 51(23), e2024GL111078, ISSN: 0094-8276. DOI: 10.1029/2024GL111078.

P. Bailey, L, M. Dorrell, R, Kostakis, I, McKee, D, Parsons, D, Rees, J, Strong, J, Simmons, S, Forster, R (2024) Monopile-induced turbulence and sediment redistribution form visible wakes in offshore wind farms, Frontiers in Earth Science, 12, 1383726, DOI: 10.3389/feart.2024.1383726.

Ruffell, SC, Talling, PJ, Baker, ML, Pope, EL, Heijnen, MS, Jacinto, RS, Cartigny, MJB, Simmons, SM, Clare, MA, Heerema, CJ, McGhee, C, Hage, S, Hasenhündl, M, Parsons, DR (2024) Time-lapse surveys reveal patterns and processes of erosion by exceptionally powerful turbidity currents that flush submarine canyons: A case study of the Congo Canyon, Geomorphology, 463, 109350, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2024.109350.

H. Gebrechorkos, S, Leyland, J, J. Dadson, S, Cohen, S, Slater, L, Wortmann, M, J. Ashworth, P, L. Bennett, G, Boothroyd, R, Cloke, H, Delorme, P, Griffith, H, Hardy, R, Hawker, L, McLelland, S, Neal, J, Nicholas, A, J. Tatem, A, Vahidi, E, Liu, Y, Sheffield, J, Parsons, D, E. Darby, S (2024) Global-scale evaluation of precipitation datasets for hydrological modelling, Hydrology and Earth System Sciences, 28(14), pp.3099-3118, ISSN: 1027-5606. DOI: 10.5194/hess-28-3099-2024.

Williams, AL, Vũ, Q, Lê, H, Jones, L, Võ, TT, Halstead, F, Parsons, K, Nguyễn, ATQ, Hackney, CR, Parsons, D (2024) Act of hope: a story of climate change and water puppetry performance along the Red River, Vietnam, Research in Drama Education: The Journal of Applied Theatre and Performance, 29(2), pp.278-289, ISSN: 1356-9783. DOI: 10.1080/13569783.2024.2319833.

Ockelford, A, Wohl, E, Ruiz‐Villanueva, V, Comiti, F, Piégay, H, Darby, S, Parsons, D, Yochum, SE, Wolstenholme, J, White, D, Uno, H, Triantafillou, S, Stroth, T, Smrdel, T, Scott, DN, Scamardo, JE, Rees, J, Rathburn, S, Morrison, RR, Milan, D, Marshall, A, Lininger, KB, Kemper, JT, Karpack, M, Johaneman, T, Iskin, E, del Hoyo, JG, Hortobágyi, B, Hinshaw, S, Heath, J, Emmanuel, T, Dunn, S, Christensen, N, Beeby, J, Ash, J, Ader, E, Aarnink, J (2024) Working with wood in rivers in the Western United States, River Research and Applications, 40(8), pp.1626-1641, ISSN: 1535-1459. DOI: 10.1002/rra.4331.

A. G. P. Van Dijk, T, Roche, M, Lurton, X, Fezzani, R, M. Simmons, S, Gastauer, S, Fietzek, P, Mesdag, C, Berger, L, Klein Breteler, M, Parsons, D (2024) Bottom and suspended sediment backscatter measurements in a flume—Towards quantitative bed and water column properties, Journal of Marine Science and Engineering, 12(4), 609, DOI: 10.3390/jmse12040609.

Wu, X, Malarkey, J, Fernández, R, Baas, JH, Pollard, E, Parsons, DR (2024) Influence of cohesive clay on wave-current ripple dynamics captured in a 3D phase diagram, Earth Surface Dynamics, 12(1), pp.231-247, ISSN: 2196-6311. DOI: 10.5194/esurf-12-231-2024.

Azpiroz-Zabala, M, Sumner, EJ, Cartigny, MJB, Peakall, J, Clare, MA, Darby, SE, Parsons, D, Dorrell, RM, Özsoy, E, Tezcan, D, Wynn, RB, Johnson, J (2024) Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow, The Depositional Record, 10(1), pp.159-175, ISSN: 2055-4877. DOI: 10.1002/dep2.265.

Mendrik, F, C. Houseago, R, Hackney, CR, Parsons, D (2023) Microplastic trapping efficiency and hydrodynamics in model coral reefs: A physical experimental investigation, Environmental Pollution, 342, 123094, ISSN: 0269-7491. DOI: 10.1016/j.envpol.2023.123094.

Jones, L, Parsons, K, Halstead, F, Nguyen, DN, Pham, HTM, Pham, D-L, Allison, CR, Chew, M, Bird, E, Meek, A, Buckton, SJ, Nguyen, KL, Williams, AL, Vo, TT, Le, H, Nguyen, ATQ, Hackney, CR, Parsons, D (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), pp.69-117, DOI: 10.5871/jba/011s3.069.

Wu, X, Carling, PA, Parsons, D (2023) Hummocky sedimentary structures within rippled beds due to combined orbital waves and transverse currents, Sedimentology, 71(2), pp.573-589, ISSN: 0037-0746. DOI: 10.1111/sed.13145.

Chong, F, Sommer, B, Stant, G, Verano, N, Cant, J, Lachs, L, Johnson, ML, Parsons, DR, Pandolfi, JM, Salguero-Gómez, R, Spencer, M, Beger, M (2023) High-latitude marginal reefs support fewer but bigger corals than their tropical counterparts, Ecography, 2023(12), e06835, ISSN: 0906-7590. DOI: 10.1111/ecog.06835.

Gebrechorkos, S, Leyland, J, Slater, L, Wortmann, M, Ashworth, PJ, Bennett, GL, Boothroyd, R, Cloke, H, Delorme, P, Griffith, H, Hardy, R, Hawker, L, McLelland, S, Neal, J, Nicholas, A, Tatem, AJ, Vahidi, E, Parsons, DR, Darby, SE (2023) A high-resolution daily global dataset of statistically downscaled CMIP6 models for climate impact analyses, Scientific Data, 10, 611, ISSN: 2052-4463. DOI: 10.1038/s41597-023-02528-x.

Talling, PJ, Cartigny, MJB, Pope, E, Baker, M, Clare, MA, Heijnen, M, Hage, S, Parsons, DR, Simmons, SM, Paull, CK, Gwiazda, R, Lintern, G, Hughes Clarke, JE, Xu, J, Silva Jacinto, R, Maier, KL (2023) Detailed monitoring reveals the nature of submarine turbidity currents, Nature Reviews Earth and Environment, 4(9), pp.642-658, DOI: 10.1038/s43017-023-00458-1.

Mendrik, F, Fernández, R, R. Hackey, C, Waller, C, Parsons, D (2023) Author Correction: Non-buoyant microplastic settling velocity varies with biofilm growth and ambient water salinity, Communications Earth and Environment, 4(1), 264 (2023), DOI: 10.1038/s43247-023-00934-y.

Russell, CE, Fernandez, R, Parsons, D, Gabbott, SE (2023) Plastic pollution in riverbeds fundamentally affects natural sand transport processes, Communications Earth & Environment, 4, 255, DOI: 10.1038/s43247-023-00820-7.

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 and Geosciences, 178, 105405, ISSN: 0098-3004. DOI: 10.1016/j.cageo.2023.105405.

Berchoux, T, Hutton, CW, Hensengerth, O, Voepel, HE, Tri, VPD, Vu, PT, Hung, NN, Parsons, D, Darby, SE (2023) Effect of planning policies on land use dynamics and livelihood opportunities under global environmental change: Evidence from the Mekong Delta, Land Use Policy, 131, 106752, ISSN: 0264-8377. DOI: 10.1016/j.landusepol.2023.106752.

Fukuda, S, de Vet, MGW, Skevington, EWG, Bastianon, E, Fernández, R, Wu, X, McCaffrey, WD, Naruse, H, Parsons, DR, Dorrell, RM (2023) Inadequacy of fluvial energetics for describing gravity current autosuspension, Nature Communications, 14, 2288, ISSN: 2041-1723. DOI: 10.1038/s41467-023-37724-1.

Mendrik, F, Fernández, R, Hackney, CR, Waller, C, Parsons, DR (2023) Non-buoyant microplastic settling velocity varies with biofilm growth and ambient water salinity, Communications Earth and Environment, 4, 30, DOI: 10.1038/s43247-023-00690-z.

Orfeo, O, Stevaux, J, Best, J, Parsons, D, Szupiany, R (2022) The Paraná River in the argentine plain: A review of its evolution and contemporary characteristics, Journal of South American Earth Sciences, 121, 104115, ISSN: 0895-9811. DOI: 10.1016/j.jsames.2022.104115.

Bastianon, E, Hope, JA, Dorrell, RM, Parsons, DR (2022) Effect of hydro-climate variation on biofilm dynamics and its impact in intertidal environments, Earth Surface Dynamics, 10(6), pp.1115-1140, ISSN: 2196-6311. DOI: 10.5194/esurf-10-1115-2022.

Ahmed, J, Peakall, J, Balme, M, Parsons, D (2022) Rapid megaflood-triggered base-level rise on Mars, Geology (Boulder), 51(1), pp.28-32, ISSN: 0091-7613. DOI: 10.1130/G50277.1.

Baar, AW, Braat, L, Parsons, DR (2022) Control of river discharge on large-scale estuary morphology, Earth Surface Processes and Landforms, 48(3), pp.489-503, ISSN: 0197-9337. DOI: 10.1002/esp.5498.

Pope, EL, Heijnen, MS, Talling, PJ, Jacinto, RS, Gaillot, A, Baker, ML, Hage, S, Hasenhündl, M, Heerema, CJ, McGhee, C, Ruffell, SC, Simmons, SM, Cartigny, MJB, Clare, MA, Dennielou, B, Parsons, DR, Peirce, C, Urlaub, M (2022) Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming, Nature Geoscience, 15(10), pp.845-853, ISSN: 1752-0894. DOI: 10.1038/s41561-022-01017-x.

Das, D, Ganti, V, Bradley, R, Venditti, J, Reesink, A, Parsons, DR (2022) The Influence of Transport Stage on Preserved Fluvial Cross Strata, Geophysical Research Letters, 49(18), e2022GL099808, ISSN: 0094-8276. DOI: 10.1029/2022GL099808.

Wu, X, Fernandez, R, Baas, JH, Malarkey, J, Parsons, DR (2022) Discontinuity in Equilibrium Wave-Current Ripple Size and Shape and Deep Cleaning Associated With Cohesive Sand-Clay Beds, Journal of geophysical research. Earth surface, 127(9), e2022JF006771, ISSN: 2169-9003. DOI: 10.1029/2022JF006771.

Holliday, MC, Parsons, DR, Zein, SH (2022) Microwave-Assisted Hydrothermal Carbonisation of Waste Biomass: The Effect of Process Conditions on Hydrochar Properties, Processes, 10(9), 1756, DOI: 10.3390/pr10091756.

Hong, L, Cheng, S, Houseago, RC, Parsons, DR, Best, JL, Chamorro, LP (2022) On the submerged low-Cauchy-number canopy dynamics under unidirectional flows, Journal of Fluids and Structures, 113, pp.103646-103646, ISSN: 0889-9746. DOI: 10.1016/j.jfluidstructs.2022.103646.

Lonsdale, JA, 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 and Policy, 134, pp.75-84, ISSN: 1462-9011. DOI: 10.1016/j.envsci.2022.04.001.

Roggatz, CC and Parsons, DR (2022) Potential Climate Change Impacts on the Abiotic Degradation of Acyl-Homoserine Lactones in the Fluctuating Conditions of Marine Biofilms, Frontiers in Marine Science, 9, DOI: 10.3389/fmars.2022.882428.

Talling, PJ, Baker, ML, Pope, EL, Ruffell, SC, Jacinto, RS, Heijnen, MS, Hage, S, Simmons, SM, Hasenhündl, M, Heerema, CJ, McGhee, C, Apprioual, R, Ferrant, A, Cartigny, MJB, Parsons, DR, Clare, MA, Tshimanga, RM, Trigg, MA, Cula, CA, Faria, R, Gaillot, A, Bola, G, Wallance, D, Griffiths, A, Nunny, R, Urlaub, M, Peirce, C, Burnett, R, Neasham, J, Hilton, RJ (2022) Longest sediment flows yet measured show how major rivers connect efficiently to deep sea, Nature Communications, 13, 4193, ISSN: 2041-1723. DOI: 10.1038/s41467-022-31689-3.

Prokocki, EW, Best, JL, Perillo, MM, Ashworth, PJ, Parsons, DR, Sambrook Smith, GH, Nicholas, AP, Simpson, CJ (2022) The morphology of fluvial-tidal dunes: Lower Columbia River, Oregon/Washington, USA, Earth Surface Processes and Landforms, 47(8), pp.2079-2106, ISSN: 0197-9337. DOI: 10.1002/esp.5364.

Hage, S, Galy, VV, Cartigny, MJB, Heerema, C, Heijnen, MS, Acikalin, S, Clare, MA, Giesbrecht, I, Gröcke, DR, Hendry, A, Hilton, RG, Hubbard, SM, Hunt, JE, Lintern, DG, McGhee, C, Parsons, DR, Pope, EL, Stacey, CD, Sumner, EJ, Tank, S, Talling, PJ (2022) Turbidity Currents Can Dictate Organic Carbon Fluxes Across River-Fed Fjords: An Example From Bute Inlet (BC, Canada), Journal of Geophysical Research Biogeosciences, 127(6), ISSN: 2169-8953. DOI: 10.1029/2022JG006824.

McMahon, WJ, Pierik, HJAN, Shillito, AP, Salese, F, van der Kwaak, B, Parsons, DR, Kleinhans, MG (2022) SUPERIMPOSED ALLOGENIC AND BIOLOGICAL CONTROLS ON SILICICLASTIC ARCHITECTURE: AN EARLY MISSISSIPPIAN (VISEAN) EXAMPLE FROM TROPICAL LAURUSSIA, Palaios, 37(6), pp.224-250, ISSN: 0883-1351. DOI: 10.2110/palo.2021.033.

Keevil, CE, Rogerson, M, Parsons, DR, Mercedes-Martín, R, Brasier, AT, Reijmer, JJG, Matthews, A (2022) THE GEOMORPHOLOGICAL DISTRIBUTION OF SUBAQUEOUS TUFA COLUMNS IN A HYPERSALINE LAKE: MONO LAKE, U.S.A, Journal of Sedimentary Research, 92(6), pp.530-546, ISSN: 1527-1404. DOI: 10.2110/jsr.2021.034.

Ma, H, Nittrouer, JA, Fu, X, Parker, G, Zhang, Y, Wang, Y, Wang, Y, Lamb, MP, Cisneros, J, Best, J, Parsons, DR, Wu, B (2022) Amplification of downstream flood stage due to damming of fine-grained rivers, Nature Communications, 13, 3054, ISSN: 2041-1723. DOI: 10.1038/s41467-022-30730-9.

Holliday, MC, Parsons, DR, Zein, SH (2022) Agricultural Pea Waste as a Low-Cost Pollutant Biosorbent for Methylene Blue Removal: Adsorption Kinetics, Isotherm And Thermodynamic Studies, Biomass Conversion and Biorefinery, 14(5), pp.6671-6685, ISSN: 2190-6815. DOI: 10.1007/s13399-022-02865-8.

Sheng, W, Tapoglou, E, Ma, X, Taylor, CJ, Dorrell, R, Parsons, DR, Aggidis, G (2022) Time‐Domain Implementation and Analyses of Multi‐Motion Modes of Floating Structures, Journal of Marine Science and Engineering, 10(5), DOI: 10.3390/jmse10050662.

Pope, EL, Cartigny, MJB, Clare, MA, Talling, PJ, Lintern, DG, Vellinga, A, Hage, S, Açikalin, S, Bailey, L, Chapplow, N, Chen, Y, Eggenhuisen, JT, Hendry, A, Heerema, CJ, Heijnen, MS, Hubbard, SM, Hunt, JE, McGhee, C, Parsons, DR, Simmons, SM, Stacey, CD, Vendettuoli, D (2022) First source-to-sink monitoring shows dense head controls sediment flux and runout in turbidity currents, Science Advances, 8(20), DOI: 10.1126/sciadv.abj3220.

Heijnen, MS, Clare, MA, Cartigny, MJB, Talling, PJ, Hage, S, Pope, EL, Bailey, L, Sumner, E, Gwyn Lintern, D, Stacey, C, Parsons, DR, Simmons, SM, Chen, Y, Hubbard, SM, Eggenhuisen, JT, Kane, I, Hughes Clarke, JE (2022) Fill, flush or shuffle: How is sediment carried through submarine channels to build lobes?, Earth and Planetary Science Letters, 584, ISSN: 0012-821X. DOI: 10.1016/j.epsl.2022.117481.

Sheng, W, Tapoglou, E, Ma, X, Taylor, CJ, Dorrell, RM, Parsons, DR, Aggidis, G (2022) Hydrodynamic studies of floating structures: Comparison of wave-structure interaction modelling, Ocean Engineering, 249, ISSN: 0029-8018. DOI: 10.1016/j.oceaneng.2022.110878.

Houseago, RC, Hong, L, Cheng, S, Best, JL, Parsons, DR, Chamorro, LP (2022) On the turbulence dynamics induced by a surrogate seagrass canopy, Journal of Fluid Mechanics, 934, A17, ISSN: 0022-1120. DOI: 10.1017/jfm.2021.1142.

Tri, VPD, Trung, PK, Trong, TM, Parsons, DR, Darby, SE (2022) Assessing social vulnerability to riverbank erosion across the Vietnamese Mekong Delta, International Journal of River Basin Management, 21(3), pp.501-512, ISSN: 1571-5124. DOI: 10.1080/15715124.2021.2021926.

Gwiazda, R, Paull, CK, Kieft, B, Klimov, D, Herlien, R, Lundsten, E, McCann, M, Cartigny, MJ, Hamilton, A, Xu, J, Maier, KL, Parsons, DR, Talling, PJ (2022) Near-Bed Structure of Sediment Gravity Flows Measured by Motion-Sensing “Boulder-Like” Benthic Event Detectors (BEDs) in Monterey Canyon, Journal of Geophysical Research Earth Surface, 127(2), ISSN: 2169-9003. DOI: 10.1029/2021JF006437.

Hope, JA, Coco, G, Parsons, DR, Thrush, SF (2021) Microplastics interact with benthic biostabilization processes, Environmental Research Letters, 16(12), pp.124058-124058, DOI: 10.1088/1748-9326/ac3bfd.

Hardy, RJ, Best, JL, Marjoribanks, T, Parsons, DR, Ashworth, PJ (2021) The influence of three‐dimensional topography on turbulent flow structures over dunes in unidirectional flows, Journal of Geophysical Research: Earth Surface, 126(12), e2021JF006121, ISSN: 2169-9003. DOI: 10.1029/2021jf006121.

Hu, H, Yang, Z, Yin, D, Cheng, H, Hackney, CR, Parsons, DR (2021) The combined effect of discharge and tides on low-angle dune evolution at the tidal current limit of the Changjiang Estuary, Geomorphology, 392, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2021.107917.

Hackney, CR, Vasilopoulos, G, Heng, S, Darbari, V, Walker, S, Parsons, DR (2021) Sand mining far outpaces natural supply in a large alluvial river, Earth Surface Dynamics, 9(5), pp.1323-1334, DOI: 10.5194/esurf-9-1323-2021.

Fernandez, RL, McLelland, S, Parsons, DR, Bodewes, B (2021) Riparian vegetation life stages control the impact of flood sequencing on braided river morphodynamics, Earth Surface Processes and Landforms, 46(11), pp.2315-2329, ISSN: 0197-9337. DOI: 10.1002/esp.5177.

Jones, L, Halstead, F, Parsons, K, Le, H, Bui, LTH, Hackney, CR, Parsons, D (2021) 2020-vision: understanding climate (in)action through the emotional lens of loss, Journal of the British Academy, 9(s5), pp.29-68, DOI: 10.5871/jba/009s5.029.

Leach, C, Coulthard, T, Barkwith, A, Parsons, DR, Manson, S (2021) The Coastline Evolution Model 2D (CEM2D) V1.1, Geoscientific Model Development, 14(9), pp.5507-5523, DOI: 10.5194/gmd-14-5507-2021.

Tapoglou, E, Forster, RM, Dorrell, RM, Parsons, D (2021) Machine learning for satellite-based sea-state prediction in an offshore windfarm, Ocean Engineering, 235, ISSN: 0029-8018. DOI: 10.1016/j.oceaneng.2021.109280.

Eslami, S, Hoekstra, P, Kernkamp, HWJ, Nguyen Trung, N, Do Duc, D, Nguyen Nghia, H, Tran Quang, T, van Dam, A, Darby, SE, Parsons, DR, Vasilopoulos, G, Braat, L, 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, 9(4), pp.953-976, DOI: 10.5194/esurf-9-953-2021.

Relph, KE, Stevenson, EI, Turchyn, AV, Antler, G, Bickle, MJ, Baronas, JJ, Darby, SE, Parsons, DR, Tipper, ET (2021) Partitioning riverine sulfate sources using oxygen and sulfur isotopes: Implications for carbon budgets of large rivers, Earth and Planetary Science Letters, 567, ISSN: 0012-821X. DOI: 10.1016/j.epsl.2021.116957.

Rodgers, K, Mayes, WM, Santoro, O, Redshaw, C, Mccumskay, R, Parsons, DR (2021) Comparative assessment of marine weathering of ROP-derived biopolymers against conventional plastics, Marine Pollution Bulletin, 167, ISSN: 0025-326X. DOI: 10.1016/j.marpolbul.2021.112272.

Vasilopoulos, G, Quan, QL, Parsons, DR, Darby, SE, Tri, VPD, Hung, NN, Haigh, ID, Voepel, HE, Nicholas, AP, Aalto, R (2021) Establishing sustainable sediment budgets is critical for climate-resilient mega-deltas, Environmental Research Letters, 16(6), ISSN: 1748-9318. DOI: 10.1088/1748-9326/ac06fc.

Chen, Y, Parsons, DR, Simmons, SM, Williams, R, Cartigny, MJB, Hughes Clarke, JE, Stacey, CD, Hage, S, Talling, PJ, Azpiroz-Zabala, M, Clare, MA, Hizzett, JL, Heijnen, MS, Hunt, JE, Lintern, DG, Sumner, EJ, Vellinga, AJ, Vendettuoli, D (2021) Knickpoints and crescentic bedform interactions in submarine channels, Sedimentology, 68(4), pp.1358-1377, ISSN: 0037-0746. DOI: 10.1111/sed.12886.

Hutton, C, Hensengerth, O, Berchoux, T, Tri, V, Tong, T, Hung, N, Voepel, H, Darby, S, Bui, D, Bui, T, Huy, N, Parsons, D (2021) Stakeholder Expectations of Future Policy Implementation Compared to Formal Policy Trajectories: Scenarios for Agricultural Food Systems in the Mekong Delta, Sustainability, 13(10), pp.5534-5534, DOI: 10.3390/su13105534.

Bailey, LP, Clare, MA, Rosenberger, KJ, Cartigny, MJB, Talling, PJ, Paull, CK, Gwiazda, R, Parsons, DR, Simmons, SM, Xu, J, Haigh, ID, Maier, KL, McGann, M, Lundsten, E (2021) Preconditioning by sediment accumulation can produce powerful turbidity currents without major external triggers, Earth and Planetary Science Letters, 562, ISSN: 0012-821X. DOI: 10.1016/j.epsl.2021.116845.

Hu, H, Yang, Z, Yin, D, Cheng, H, Parsons, DR (2021) Hydrodynamics over low-angle dunes at the tidal current limit of the Changjiang Estuary, Estuarine, Coastal and Shelf Science, 253, pp.107298-107298, ISSN: 0272-7714. DOI: 10.1016/j.ecss.2021.107298.

Bussi, G, Darby, SE, Whitehead, PG, Jin, L, Dadson, SJ, Voepel, HE, Vasilopoulos, G, Hackney, CR, Hutton, C, Berchoux, T, Parsons, DR, Nicholas, A (2021) Impact of dams and climate change on suspended sediment flux to the Mekong delta, Science of the Total Environment, 755, ISSN: 0048-9697. DOI: 10.1016/j.scitotenv.2020.142468.

Mendrik, FM, Henry, TB, Burdett, H, Hackney, CR, Waller, C, Parsons, DR, Hennige, SJ (2021) Species-specific impact of microplastics on coral physiology, Environmental Pollution, 269, ISSN: 0269-7491. DOI: 10.1016/j.envpol.2020.116238.

Heijnen, MS, Clare, MA, Cartigny, MJB, Talling, PJ, Hage, S, Lintern, DG, Stacey, C, Parsons, DR, Simmons, SM, Chen, Y, Sumner, EJ, Dix, JK, Clarke, JEH (2020) Author Correction: Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution (Nature Communications, (2020), 11, 1, (3129), 10.1038/s41467-020-16861-x), Nature Communications, 11(1), DOI: 10.1038/s41467-020-18394-9.

Prokocki, EW, Best, JL, Ashworth, PJ, Sambrook Smith, GH, Nicholas, AP, Parsons, DR, Simpson, CJ (2020) Alluvial architecture of mid-channel fluvial–tidal barforms: The mesotidal Lower Columbia River, Oregon/Washington, USA, Sedimentology, 67(7), pp.3533-3566, ISSN: 0037-0746. DOI: 10.1111/sed.12754.

Unsworth, CA, Nicholas, AP, Ashworth, PJ, Best, JL, Lane, SN, Parsons, DR, Sambrook Smith, GH, Simpson, CJ, Strick, RJP (2020) Influence of Dunes on Channel‐Scale Flow and Sediment Transport in a Sand Bed Braided River, Journal of Geophysical Research: Earth Surface, 125(11), e2020JF005571, ISSN: 2169-9003. DOI: 10.1029/2020jf005571.

Ramírez-Mendoza, R, Murdoch, L, Jordan, LB, Amoudry, LO, McLelland, S, Cooke, RD, Thorne, P, Simmons, SM, Parsons, D, Vezza, M (2020) Asymmetric effects of a modelled tidal turbine on the flow and seabed, Renewable Energy, 159, pp.238-249, ISSN: 0960-1481. DOI: 10.1016/j.renene.2020.05.133.

Hope, JA, Malarkey, J, Baas, JH, Peakall, J, Parsons, DR, Manning, AJ, Bass, SJ, Lichtman, ID, Thorne, PD, Ye, L, Paterson, DM (2020) Interactions between sediment microbial ecology and physical dynamics drive heterogeneity in contextually similar depositional systems, Limnology and Oceanography, 65(10), pp.2403-2419, DOI: 10.1002/lno.11461.

Baronas, JJ, Stevenson, EI, Hackney, CR, Darby, SE, Bickle, MJ, Hilton, RG, Larkin, CS, Parsons, DR, Myo Khaing, A, Tipper, ET (2020) Integrating Suspended Sediment Flux in Large Alluvial River Channels: Application of a Synoptic Rouse‐Based Model to the Irrawaddy and Salween Rivers, Journal of Geophysical Research: Earth Surface, 125(9), e2020JF005554, ISSN: 2169-9003. DOI: 10.1029/2020jf005554.

Hage, S, Galy, VV, Cartigny, MJB, Acikalin, S, Clare, MA, Gröcke, DR, Hilton, RG, Hunt, JE, Lintern, DG, Mcghee, CA, Parsons, DR, Stacey, CD, Sumner, EJ, Talling, PJ (2020) Efficient preservation of young terrestrial organic carbon in sandy turbidity-current deposits, Geology, 48(9), pp.882-887, ISSN: 0091-7613. DOI: 10.1130/G47320.1.

Wang, Z, Xu, J, Talling, PJ, Cartigny, MJB, Simmons, SM, Gwiazda, R, Paull, CK, Maier, KL, Parsons, DR (2020) Direct evidence of a high-concentration basal layer in a submarine turbidity current, Deep Sea Research Part I Oceanographic Research Papers, 161, ISSN: 0967-0637. DOI: 10.1016/j.dsr.2020.103300.

Chapman, EC, Bonsor, BJ, Parsons, DR, Rotchell, JM (2020) Influence of light and temperature cycles on the expression of circadian clock genes in the mussel Mytilus edulis, Marine Environmental Research, 159, ISSN: 0141-1136. DOI: 10.1016/j.marenvres.2020.104960.

Heijnen, MS, Clare, MA, Cartigny, MJB, Talling, PJ, Hage, S, Lintern, DG, Stacey, C, Parsons, DR, Simmons, SM, Chen, Y, Sumner, EJ, Dix, JK, Hughes Clarke, JE (2020) Rapidly-migrating and internally-generated knickpoints can control submarine channel evolution, Nature Communications, 11(1), 3129, DOI: 10.1038/s41467-020-16861-x.

Smith, G, Rowley, P, Williams, R, Giordano, G, Trolese, M, Silleni, A, Parsons, DR, Capon, S (2020) A bedform phase diagram for dense granular currents, Nature Communications, 11(1), 2873, DOI: 10.1038/s41467-020-16657-z.

Simmons, SM, Azpiroz‐Zabala, M, Cartigny, MJB, Clare, MA, Cooper, C, Parsons, DR, Pope, EL, Sumner, EJ, Talling, PJ (2020) Novel Acoustic Method Provides First Detailed Measurements of Sediment Concentration Structure Within Submarine Turbidity Currents, Journal of Geophysical Research: Oceans, 125(5), e2019JC015904, ISSN: 2169-9275. DOI: 10.1029/2019jc015904.

Darby, SE, Langdon, PG, Best, JL, Leyland, J, Hackney, CR, Marti, M, Morgan, PR, Ben, S, Aalto, R, Parsons, D, Nicholas, AP, Leng, MJ (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(2020), 106265, ISSN: 0277-3791. DOI: 10.1016/j.quascirev.2020.106265.

Heerema, CJ, Talling, PJ, Cartigny, MJ, Paull, CK, Bailey, L, Simmons, SM, Parsons, DR, Clare, MA, Gwiazda, R, Lundsten, E, Anderson, K, Maier, KL, Xu, JP, Sumner, EJ, Rosenberger, K, Gales, J, McGann, M, Carter, L, Pope, E (2020) What determines the downstream evolution of turbidity currents?, Earth and Planetary Science Letters, 532, ISSN: 0012-821X. DOI: 10.1016/j.epsl.2019.116023.

Carlson, BN, Nittrouer, JA, Moodie, AJ, Kineke, GC, Kumpf, LL, Ma, H, Parsons, DR, Wang, H (2020) Infilling Abandoned Deltaic Distributary Channels Through Landward Sediment Transport, Journal of Geophysical Research: Earth Surface, 125(2), e2019JF005254, ISSN: 2169-9003. DOI: 10.1029/2019jf005254.

Cisneros, J, Best, J, van Dijk, T, Almeida, RPD, Amsler, M, Boldt, J, Freitas, B, Galeazzi, C, Huizinga, R, Ianniruberto, M, Ma, H, Nittrouer, JA, Oberg, K, Orfeo, O, Parsons, D, Szupiany, R, Wang, P, 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), pp.156-162, ISSN: 1752-0894. DOI: 10.1038/s41561-019-0511-7.

Hackney, CR, Darby, SE, Parsons, DR, Leyland, J, Best, JL, Aalto, R, Nicholas, AP, Houseago, RC (2020) River bank instability from unsustainable sand mining in the lower Mekong River, Nature Sustainability, 3(3), pp.217-225, DOI: 10.1038/s41893-019-0455-3.

Baas, JH, Baker, ML, Malarkey, J, Bass, SJ, Manning, AJ, Hope, JA, Peakall, J, Lichtman, ID, Ye, L, Davies, AG, Parsons, DR, Paterson, DM, Thorne, PD (2019) Integrating field and laboratory approaches for ripple development in mixed sand–clay–EPS, Sedimentology, 66(7), pp.2749-2768, ISSN: 0037-0746. DOI: 10.1111/sed.12611.

Dorrell, RM, Peakall, J, Darby, SE, Parsons, DR, Johnson, J, Sumner, EJ, Wynn, RB, Özsoy, E, Tezcan, D (2019) Self-sharpening induces jet-like structure in seafloor gravity currents, Nature Communications, 10(1), DOI: 10.1038/s41467-019-09254-2.

Maier, KL, Rosenberger, KJ, Paull, CK, Gwiazda, R, Gales, J, Lorenson, T, Barry, JP, Talling, PJ, McGann, M, Xu, J, Lundsten, E, Anderson, K, Litvin, SY, Parsons, DR, Clare, MA, Simmons, SM, Sumner, EJ, Cartigny, MJB (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, ISSN: 0967-0637. DOI: 10.1016/j.dsr.2019.103108.

Hage, S, Cartigny, MJB, Sumner, EJ, Clare, MA, Hughes Clarke, JE, Talling, PJ, Lintern, DG, Simmons, SM, Silva Jacinto, R, Vellinga, AJ, Allin, JR, Azpiroz-Zabala, M, Gales, JA, Hizzett, JL, Hunt, JE, Mozzato, A, Parsons, DR, Pope, EL, Stacey, CD, Symons, WO, Vardy, ME, Watts, C (2019) Direct Monitoring Reveals Initiation of Turbidity Currents From Extremely Dilute River Plumes, Geophysical Research Letters, 46(20), pp.11310-11320, ISSN: 0094-8276. DOI: 10.1029/2019GL084526.

Woodbridge, KP, Pirasteh, S, Parsons, DR (2019) Investigating Fold-River Interactions for Major Rivers Using a Scheme of Remotely Sensed Characteristics of River and Fold Geomorphology, Remote Sensing, 11(17), pp.2037-2037, DOI: 10.3390/rs11172037.

Wu, X and Parsons, DR (2019) Corrigendum to “Field investigation of bedform morphodynamics under combined flow” [Geomorphology 339 (2019)19–30](S0169555X19301850)(10.1016/j.geomorph.2019.04.028), Geomorphology, 339, p.141, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2019.05.004.

Wu, X and Parsons, DR (2019) Field investigation of bedform morphodynamics under combined flow, Geomorphology, 339, pp.19-30, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2019.04.028.

Maier, KL, Gales, JA, Paull, CK, Rosenberger, K, Talling, PJ, Simmons, SM, Gwiazda, R, McGann, M, Cartigny, MJB, Lundsten, E, Anderson, K, Clare, MA, Xu, J, Parsons, D, Barry, JP, Wolfson-Schwehr, M, Nieminski, NM, Sumner, EJ (2019) Linking direct measurements of turbidity currents to submarine canyon-floor deposits, Frontiers in Earth Science, 7, DOI: 10.3389/feart.2019.00144.

Strick, RJP, Ashworth, PJ, Sambrook Smith, GH, Nicholas, AP, Best, JL, Lane, SN, Parsons, DR, Simpson, CJ, Unsworth, CA, 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, 44(4), pp.953-972, ISSN: 0197-9337. DOI: 10.1002/esp.4558.

Horan, K, Hilton, RG, Dellinger, M, Tipper, E, Galy, V, Calmels, D, Selby, D, Gaillardet, J, Ottley, CJ, Parsons, DR, Burton, KW (2019) Reply to comment by Thomas M. Blattmann on “Carbon dioxide emissions by rock organic carbon oxidation and the next geochemical carbon budget of the Mackenzie River Basin”, v. 319, n. 6, p. 473–499, American Journal of Science, 319(10), pp.905-906, ISSN: 0002-9599. DOI: 10.2475/10.2019.04.

Horan, K, Hilton, RG, Dellinger, M, Tipper, E, Galy, V, Calmels, D, Selby, D, Gaillardet, J, Ottley, CJ, Parsons, DR, Burton, KW (2019) Carbon dioxide emissions by rock organic carbon oxidation and the net geochemical carbon budget of the Mackenzie River Basin, American Journal of Science, 319(6), pp.473-499, ISSN: 0002-9599. DOI: 10.2475/06.2019.02.

Li, X, Li, M, Jordan, LB, McLelland, S, Parsons, DR, Amoudry, LO, Song, Q, Comerford, L (2019) Modelling impacts of tidal stream turbines on surface waves, Renewable Energy, 130, pp.725-734, ISSN: 0960-1481. DOI: 10.1016/j.renene.2018.05.098.

Paull, CK, Talling, PJ, Maier, KL, Parsons, D, Xu, J, Caress, DW, Gwiazda, R, Lundsten, EM, Anderson, K, Barry, JP, Chaffey, M, O’Reilly, T, Rosenberger, KJ, Gales, JA, Kieft, B, McGann, M, Simmons, SM, McCann, M, Sumner, EJ, Clare, MA, Cartigny, MJ (2018) Powerful turbidity currents driven by dense basal layers, Nature Communications, 9(1), DOI: 10.1038/s41467-018-06254-6.

Ramírez-Mendoza, R, Amoudry, LO, Thorne, PD, Cooke, RD, McLelland, SJ, Jordan, LB, Simmons, SM, Parsons, DR, Murdoch, L (2018) Laboratory study on the effects of hydro kinetic turbines on hydrodynamics and sediment dynamics, Renewable Energy, 129, pp.271-284, ISSN: 0960-1481. DOI: 10.1016/j.renene.2018.05.094.

Kostaschuk, R, Nasr‐Azadani, MM, Meiburg, E, Wei, T, Chen, Z, Negretti, ME, Best, J, Peakall, J, Parsons, DR (2018) On the Causes of Pulsing in Continuous Turbidity Currents, Journal of Geophysical Research: Earth Surface, 123(11), pp.2827-2843, ISSN: 2169-9003. DOI: 10.1029/2018jf004719.

Wu, X, Baas, JH, Parsons, DR, Eggenhuisen, J, Amoudry, L, Cartigny, M, McLelland, S, Mouazé, D, Ruessink, G (2018) Wave Ripple Development on Mixed Clay‐Sand Substrates: Effects of Clay Winnowing and Armoring, Journal of Geophysical Research: Earth Surface, 123(11), pp.2784-2801, ISSN: 2169-9003. DOI: 10.1029/2018jf004681.

Sandbach, SD, Nicholas, AP, Ashworth, PJ, Best, JL, Keevil, CE, Parsons, DR, Prokocki, EW, Simpson, CJ (2018) Hydrodynamic modelling of tidal-fluvial flows in a large river estuary, Estuarine, Coastal and Shelf Science, 212, pp.176-188, ISSN: 0272-7714. DOI: 10.1016/j.ecss.2018.06.023.

van de Lageweg, WI, Braat, L, Parsons, DR, Kleinhans, MG (2018) Controls on mud distribution and architecture along the fluvialto- marine transition, Geology, 46(11), pp.971-974, ISSN: 0091-7613. DOI: 10.1130/G45504.1.

Reesink, AJH, Parsons, DR, Ashworth, PJ, Best, JL, Hardy, RJ, Murphy, BJ, McLelland, SJ, Unsworth, C (2018) The adaptation of dunes to changes in river flow, Earth Science Reviews, 185, pp.1065-1087, ISSN: 0012-8252. DOI: 10.1016/j.earscirev.2018.09.002.

Unsworth, CA, Parsons, DR, Hardy, RJ, Reesink, AJH, Best, JL, Ashworth, PJ, Keevil, GM (2018) The Impact of Nonequilibrium Flow on the Structure of Turbulence Over River Dunes, Water Resources Research, 54(9), pp.6566-6584, ISSN: 0043-1397. DOI: 10.1029/2017wr021377.

Lichtman, ID, Baas, JH, Amoudry, LO, Thorne, PD, Malarkey, J, Hope, JA, Peakall, J, Paterson, DM, Bass, SJ, Cooke, RD, Manning, AJ, Davies, AG, Parsons, DR, Ye, L (2018) Bedform migration in a mixed sand and cohesive clay intertidal environment and implications for bed material transport predictions, Geomorphology, 315, pp.17-32, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2018.04.016.

Smith, GM, Williams, R, Rowley, PJ, Parsons, DR (2018) Investigation of variable aeration of monodisperse mixtures: implications for pyroclastic density currents, Bulletin of Volcanology, 80(8), ISSN: 0258-8900. DOI: 10.1007/s00445-018-1241-1.

Hage, S, Cartigny, MJB, Clare, MA, Sumner, EJ, Vendettuoli, D, Clarke, JEH, Hubbard, SM, Talling, PJ, Gwyn Lintern, D, Stacey, CD, Englert, RG, Vardy, ME, Hunt, JE, Yokokawa, M, Parsons, DR, Hizzett, JL, Azpiroz-Zabala, M, Vellinga, AJ (2018) How to recognize crescentic bedforms formed by supercritical turbidity currents in the geologic record: Insights from active submarine channels, Geology, 46(6), pp.563-566, ISSN: 0091-7613. DOI: 10.1130/G40095.1.

Hu, H, Wei, T, Yang, Z, Hackney, CR, Parsons, DR (2018) Low-angle dunes in the Changjiang (Yangtze) Estuary: Flow and sediment dynamics under tidal influence, Estuarine, Coastal and Shelf Science, 205, pp.110-122, ISSN: 0272-7714. DOI: 10.1016/j.ecss.2018.03.009.

van de Lageweg, WI, McLelland, SJ, Parsons, DR (2018) Quantifying biostabilisation effects of biofilm-secreted and extracted extracellular polymeric substances (EPSs) on sandy substrate, Earth Surface Dynamics, 6(1), pp.203-215, DOI: 10.5194/esurf-6-203-2018.

Simmons, SM, McLelland, SJ, Parsons, DR, Jordan, LB, Murphy, BJ, 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, pp.179-188, ISSN: 1570-6443. DOI: 10.1016/j.jher.2017.03.003.

Hackney, CR, Darby, SE, Parsons, DR, Leyland, J, Aalto, R, Nicholas, AP, Best, JL (2018) The influence of flow discharge variations on the morphodynamics of a diffluence–confluence unit on a large river, Earth Surface Processes and Landforms, 43(2), pp.349-362, ISSN: 0197-9337. DOI: 10.1002/esp.4204.

Baynes, ER, Van de Lageweg, WI, McLelland, SJ, Parsons, DR, Aberle, J, Dijkstra, JT, Henry, P-Y, Rice, S, Thom, M, Moulin, FY (2018) Beyond equilibrium: Re-evaluating physical modelling of fluvial systems to represent climate changes, Earth-Science Reviews, 181, pp.82-97, ISSN: 0012-8252. DOI: 10.1016/j.earscirev.2018.04.007.

Guo, B, Patton, R, Jin, S, Gilbert, J, Parsons, D (2018) Nonlinear modeling and verification of a heaving point absorber for wave energy conversion, IEEE Transactions on Sustainable Energy, 9(1), pp.453-461, ISSN: 1949-3029. DOI: 10.1109/TSTE.2017.2741341.

Azpiroz‐Zabala, M, Cartigny, MJB, Sumner, EJ, Clare, MA, Talling, PJ, Parsons, DR, Cooper, C (2017) A General Model for the Helical Structure of Geophysical Flows in Channel Bends, Geophysical Research Letters, 44(23), ISSN: 0094-8276. DOI: 10.1002/2017gl075721.

Simmons, SM, Parsons, DR, Best, JL, Oberg, KA, Czuba, JA, Keevil, GM (2017) An evaluation of the use of a multibeam echo-sounder for observations of suspended sediment, Applied Acoustics, 126, pp.81-90, ISSN: 0003-682X. DOI: 10.1016/j.apacoust.2017.05.004.

Chapman, EC, O’Dell, AR, Meligi, NM, Parsons, DR, Rotchell, JM (2017) Seasonal expression patterns of clock-associated genes in the blue mussel Mytilus edulis, Chronobiology International, 34(9), pp.1300-1314, ISSN: 0742-0528. DOI: 10.1080/07420528.2017.1363224.

Azpiroz-Zabala, M, Cartigny, MJB, Talling, PJ, Parsons, DR, Sumner, EJ, Clare, MA, Simmons, SM, Cooper, C, Pope, EL (2017) Newly recognized turbidity current structure can explain prolonged flushing of submarine canyons, Science Advances, 3(10), e1700200, DOI: 10.1126/sciadv.1700200.

Leyland, J, Hackney, CR, Darby, SE, Parsons, DR, Best, JL, Nicholas, AP, 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, Earth Surface Processes and Landforms, 42(2), pp.334-346, ISSN: 0197-9337. DOI: 10.1002/esp.4078.

Marjoribanks, T, Hardy, RJ, Lane, SN, Parsons, DR (2017) Does the canopy mixing layer model apply to highly flexible aquatic vegetation? Insights from numerical modelling, Environmental Fluid Mechanics, ISSN: 1573-1510.

Konsoer, KM, Rhoads, BL, Best, JL, Langendoen, EJ, Abad, JD, Parsons, DR, Garcia, MH (2016) Three‐dimensional flow structure and bed morphology in large elongate meander loops with different outer bank roughness characteristics, Water Resources Research, 52(12), pp.9621-9641, ISSN: 0043-1397. DOI: 10.1002/2016wr019040.

Darby, SE, Hackney, CR, Leyland, J, Kummu, M, Lauri, H, Parsons, DR, Best, JL, Nicholas, AP, Aalto, R (2016) Fluvial sediment supply to a mega-delta reduced by shifting tropical-cyclone activity, Nature, 539(7628), pp.276-279, ISSN: 0028-0836. DOI: 10.1038/nature19809.

Dorrell, RM, Peakall, J, Sumner, EJ, Parsons, DR, Darby, SE, Wynn, RB, Özsoy, E, Tezcan, D (2016) Flow dynamics and mixing processes in hydraulic jump arrays: Implications for channel-lobe transition zones, Marine Geology, 381, pp.181-193, ISSN: 0025-3227. DOI: 10.1016/j.margeo.2016.09.009.

Hardy, RJ, Best, JL, Parsons, DR, Marjoribanks, T (2016) On the evolution and form of coherent flow structures over a gravel bed: insights from whole flow field visualization and measurement, Journal of Geophysical Research: Earth Surface, ISSN: 2169-9003. DOI: 10.1002/2015JF003753.

Parsons, DR, Schindler, RJ, Hope, JA, Malarkey, J, Baas, JH, Peakall, J, Manning, AJ, Ye, L, Simmons, S, Paterson, DM, Aspden, RJ, Bass, SJ, Davies, AG, Lichtman, ID, Thorne, PD (2016) The role of biophysical cohesion on subaqueous bed form size, Geophysical Research Letters, 43(4), pp.1566-1573, ISSN: 0094-8276. DOI: 10.1002/2016gl067667.

Yin, D, Peakall, J, Parsons, D, Chen, Z, Averill, HM, Wignall, P, Best, J (2016) Bedform genesis in bedrock substrates: Insights into formative processes from a new experimental approach and the importance of suspension-dominated abrasion, Geomorphology, 255, pp.26-38, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2015.12.008.

Woodbridge, KP, Parsons, DR, Heyvaert, VMA, Walstra, J, Frostick, LE (2016) Characteristics of direct human impacts on the rivers Karun and Dez in lowland south-west Iran and their interactions with earth surface movements, Quaternary International, 392, pp.315-334, ISSN: 1040-6182. DOI: 10.1016/j.quaint.2015.10.088.

Nicholas, AP, Smith, GHS, Amsler, ML, Ashworth, PJ, Best, JL, Hardy, RJ, Lane, SN, Orfeo, O, Parsons, DR, Reesink, AJH, Sandbach, SD, Simpson, CJ, Szupiany, RN (2016) The role of discharge variability in determining alluvial stratigraphy, GEOLOGY, 44(1), pp.3-6, ISSN: 0091-7613. DOI: 10.1130/G37215.1.

Hackney, C, Best, J, Leyland, J, Darby, SE, Parsons, D, Aalto, R, Nicholas, A (2015) Modulation of outer bank erosion by slump blocks: Disentangling the protective and destructive role of failed material on the three‐dimensional flow structure, Geophysical Research Letters, 42(24), ISSN: 0094-8276. DOI: 10.1002/2015gl066481.

Marjoribanks, TI, Hardy, RJ, Parsons, DR (2015) On validating predictions of plant motion in coupled biomechanical-flow models, Journal of Hydraulic Research, 53(6), pp.808-813, ISSN: 0022-1686. DOI: 10.1080/00221686.2015.1110627.

Reesink, AJH, Van den Berg, JH, Parsons, DR, Amsler, ML, Best, JL, Hardy, RJ, Orfeo, O, Szupiany, RN (2015) Extremes in dune preservation: Controls on the completeness of fluvial deposits, Earth-Science Reviews, 150, pp.652-665, ISSN: 0012-8252. DOI: 10.1016/j.earscirev.2015.09.008.

Marra, WA, McLelland, SJ, Parsons, DR, Murphy, BJ, Hauber, E, Kleinhans, MG (2015) Groundwater seepage landscapes from distant and local sources in experiments and on Mars, Earth Surface Dynamics, 3(3), pp.389-408, DOI: 10.5194/esurf-3-389-2015.

Nijhuis, AG, Edmonds, DA, Caldwell, RL, Cederberg, JA, Slingerland, RL, Best, JL, Parsons, DR, Robinson, RAJ (2015) Fluvio-deltaic avulsions during relative sea-level fall, Geology, 43(8), pp.719-722, ISSN: 0091-7613. DOI: 10.1130/g36788.1.

Burpee, AP, Slingerland, RL, Edmonds, DA, Parsons, D, Best, J, Cederberg, J, McGuffin, A, Caldwell, R, Nijhuis, A, Royce, J (2015) Grain-size controls on the morphology and internal geometry of river-dominated deltas, Journal of Sedimentary Research, 85(6), pp.699-714, ISSN: 1527-1404. DOI: 10.2110/jsr.2015.39.

Schindler, RJ, Parsons, DR, Ye, L, Hope, JA, Baas, JH, Peakall, J, Manning, AJ, Aspden, RJ, Malarkey, J, Simmons, S, Paterson, DM, Lichtman, ID, Davies, AG, Thorne, PD, Bass, SJ (2015) Sticky stuff: Redefining bedform prediction in modern and ancient environments, Geology, 43(5), pp.399-402, ISSN: 0091-7613. DOI: 10.1130/g36262.1.

Skinner, CJ, Coulthard, TJ, Parsons, DR, Ramirez, JA, Mullen, L, Manson, S (2015) Simulating tidal and storm surge hydraulics with a simple 2D inertia based model, in the Humber Estuary, U.K, Estuarine, Coastal and Shelf Science, 155, pp.126-136, ISSN: 0272-7714. DOI: 10.1016/j.ecss.2015.01.019.

Blettler, MCM, Amsler, ML, Ezcurra de Drago, I, Espinola, LA, Eberle, E, Paira, A, Best, JL, Parsons, DR, Drago, EE (2015) The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo–Paraguay River confluence, Argentina, Ecohydrology, 8(2), pp.340-352, ISSN: 1936-0584. DOI: 10.1002/eco.1511.

Malarkey, J, Baas, JH, Hope, JA, Aspden, RJ, Parsons, DR, Peakall, J, Paterson, DM, Schindler, RJ, Ye, L, Lichtman, ID, Bass, SJ, Davies, AG, Manning, AJ, Thorne, PD (2015) The pervasive role of biological cohesion in bedform development, Nature Communications, 6(1), 6257, DOI: 10.1038/ncomms7257.

Riley, JD, Rhoads, BL, Parsons, DR, Johnson, KK (2015) Influence of junction angle on three‐dimensional flow structure and bed morphology at confluent meander bends during different hydrological conditions, Earth Surface Processes and Landforms, 40(2), pp.252-271, ISSN: 0197-9337. DOI: 10.1002/esp.3624.

Marra, WA, Hauber, E, McLelland, SJ, Murphy, BJ, Parsons, DR, Conway, SJ, Roda, M, Govers, R, Kleinhans, MG (2014) Pressurized groundwater outflow experiments and numerical modeling for outflow channels on Mars, Journal of Geophysical Research: Planets, 119(12), pp.2668-2693, ISSN: 2169-9097. DOI: 10.1002/2014je004701.

Marjoribanks, TI, Hardy, RJ, Lane, SN, Parsons, DR (2014) High-resolution numerical modelling of flow—vegetation interactions, Journal of Hydraulic Research, 52(6), pp.775-793, ISSN: 0022-1686. DOI: 10.1080/00221686.2014.948502.

Peakall, J, Darby, SE, Dorrell, RM, Parsons, DR, Sumner, EJ, Wynn, RB (2014) Comment on “A simple model for vertical profiles of velocity and suspended sediment concentration in straight and curved submarine channels” by M. Bolla Pittaluga and J. Imran, Journal of Geophysical Research Earth Surface, 119(9), pp.2070-2073, ISSN: 2169-9003. DOI: 10.1002/2014JF003211.

Reesink, AJH, Ashworth, PJ, Sambrook Smith, GH, Best, JL, Parsons, DR, Amsler, ML, Hardy, RJ, Lane, SN, Nicholas, AP, Orfeo, O, Sandbach, SD, Simpson, CJ, Szupiany, RN (2014) Scales and causes of heterogeneity in bars in a large multi‐channel river: Río Paraná, Argentina, Sedimentology, 61(4), pp.1055-1085, ISSN: 0037-0746. DOI: 10.1111/sed.12092.

Wynn, RB, Huvenne, VAI, Le Bas, TP, Murton, BJ, Connelly, DP, Bett, BJ, Ruhl, HA, Morris, KJ, Peakall, J, Parsons, DR, Sumner, EJ, Darby, SE, Dorrell, RM, Hunt, JE (2014) Autonomous Underwater Vehicles (AUVs): Their past, present and future contributions to the advancement of marine geoscience, Marine Geology, 352, pp.451-468, ISSN: 0025-3227. DOI: 10.1016/j.margeo.2014.03.012.

Dorrell, RM, Darby, SE, Peakall, J, Sumner, EJ, Parsons, DR, Wynn, RB (2014) The critical role of stratification in submarine channels: Implications for channelization and long runout of flows, Journal of Geophysical Research: Oceans, 119(4), pp.2620-2641, ISSN: 2169-9275. DOI: 10.1002/2014jc009807.

Bolla Pittaluga, M and Imran, J (2014) A simple model for vertical profiles of velocity and suspended sediment concentration in straight and curved submarine channels, Journal of Geophysical Research: Earth Surface, 119(3), pp.483-503, ISSN: 2169-9003. DOI: 10.1002/2013jf002812.

Marra, WA, Parsons, DR, Kleinhans, MG, Keevil, GM, Thomas, RE (2014) Near-bed and surface flow division patterns in experimental river bifurcations, Water Resources Research, 50(2), pp.1506-1530, ISSN: 0043-1397. DOI: 10.1002/2013wr014215.

Sumner, EJ, Peakall, J, Dorrell, RM, Parsons, DR, Darby, SE, Wynn, RB, McPhail, SD, Perrett, J, Webb, A, White, D (2014) Driven around the bend: Spatial evolution and controls on the orientation of helical bend flow in a natural submarine gravity current, Journal of Geophysical Research: Oceans, 119(2), pp.898-913, ISSN: 2169-9275. DOI: 10.1002/2013jc009008.

Thomas, RE, Johnson, MF, Frostick, LE, Parsons, DR, Bouma, TJ, Dijkstra, JT, Eiff, O, Gobert, S, Henry, P-Y, Kemp, P, McLelland, SJ, Moulin, FY, Myrhaug, D, Neyts, A, Paul, M, Penning, WE, Puijalon, S, Rice, S, Stanica, A, Tagliapietra, D, Tal, M, Torum, A, Vousdoukas, MI (2014) Physical modelling of water, fauna and flora: knowledge gaps, avenues for future research and infrastructural needs, JOURNAL OF HYDRAULIC RESEARCH, 52(3), pp.311-325, ISSN: 0022-1686. DOI: 10.1080/00221686.2013.876453.

Wei, T, Peakall, J, Parsons, DR, Chen, Z, Zhao, B, Best, J (2013) Three‐dimensional gravity‐current flow within a subaqueous bend: Spatial evolution and force balance variations, Sedimentology, 60(7), pp.1668-1680, ISSN: 0037-0746. DOI: 10.1111/sed.12052.

Sumner, EJ, Peakall, J, Parsons, DR, Wynn, RB, Darby, SE, Dorrell, RM, McPhail, SD, Perrett, J, Webb, A, White, D (2013) First direct measurements of hydraulic jumps in an active submarine density current, Geophysical Research Letters, 40(22), pp.5904-5908, ISSN: 0094-8276. DOI: 10.1002/2013gl057862.

Parsons, DR, Jackson, PR, Czuba, JA, Engel, FL, Rhoads, BL, Oberg, KA, Best, JL, Mueller, DS, Johnson, KK, Riley, JD (2013) Velocity Mapping Toolbox (VMT): a processing and visualization suite for moving‐vessel ADCP measurements, Earth Surface Processes and Landforms, 38(11), pp.1244-1260, ISSN: 0197-9337. DOI: 10.1002/esp.3367.

Gutierrez, RR, Abad, JD, Parsons, DR, Best, JL (2013) Discrimination of bed form scales using robust spline filters and wavelet transforms: Methods and application to synthetic signals and bed forms of the Río Paraná, Argentina, Journal of Geophysical Research: Earth Surface, 118(3), pp.1400-1418, ISSN: 2169-9003. DOI: 10.1002/jgrf.20102.

Dorrell, RM, Darby, SE, Peakall, J, Sumner, EJ, Parsons, DR, Wynn, RB (2013) Superelevation and overspill control secondary flow dynamics in submarine channels, Journal of Geophysical Research: Oceans, 118(8), pp.3895-3915, ISSN: 2169-9275. DOI: 10.1002/jgrc.20277.

O'Neill, FG, Simmons, SM, Parsons, DR, Best, JL, Copland, PJ, Armstrong, F, Breen, M, Summerbell, K (2013) Monitoring the generation and evolution of the sediment plume behind towed fishing gears using a multibeam echosounder, ICES Journal of Marine Science, 70(4), pp.892-903, ISSN: 1054-3139. DOI: 10.1093/icesjms/fst051.

Blanckaert, K, Kleinhans, MG, McLelland, SJ, Uijttewaal, WSJ, Murphy, BJ, van de Kruijs, A, Parsons, DR, Chen, Q (2013) Flow separation at the inner (convex) and outer (concave) banks of constant‐width and widening open‐channel bends, Earth Surface Processes and Landforms, 38(7), pp.696-716, ISSN: 0197-9337. DOI: 10.1002/esp.3324.

Parsons, DR and Best, J (2013) Bedforms: views and new perspectives from the third international workshop on Marine and River Dune Dynamics (MARID3), Earth Surface Processes and Landforms, 38(3), pp.319-329, ISSN: 0197-9337. DOI: 10.1002/esp.3360.

Hobby, MJ, Thomas, RE, Gascoyne, M, Parsons, DR, Keevil, GM, Peakall, J, Carrivick, JL (2013) MEMS-Integrated Load Cell for Measuring Pressure, Erosion, and Deposition in Dynamic Environmental Flows, IEEE Sensors Journal, 13(2), pp.492-500, ISSN: 1530-437X. DOI: 10.1109/jsen.2012.2217953.

Sandbach, SD, Lane, SN, Hardy, RJ, Amsler, ML, Ashworth, PJ, Best, JL, Nicholas, AP, Orfeo, O, Parsons, DR, Reesink, AJH, Szupiany, RN (2012) Application of a roughness‐length representation to parameterize energy loss in 3‐D numerical simulations of large rivers, Water Resources Research, 48(12), 2011WR011284, ISSN: 0043-1397. DOI: 10.1029/2011wr011284.

Szupiany, RN, Amsler, ML, Hernandez, J, Parsons, DR, Best, JL, Fornari, E, Trento, A (2012) Flow fields, bed shear stresses, and suspended bed sediment dynamics in bifurcations of a large river, Water Resources Research, 48(11), 2011WR011677, ISSN: 0043-1397. DOI: 10.1029/2011wr011677.

Nicholas, AP, Sandbach, SD, Ashworth, PJ, Amsler, ML, Best, JL, Hardy, RJ, Lane, SN, Orfeo, O, Parsons, DR, Reesink, AJH, Sambrook Smith, GH, Szupiany, RN (2012) Modelling hydrodynamics in the Rio Paraná, Argentina: An evaluation and inter-comparison of reduced-complexity and physics based models applied to a large sand-bed river, Geomorphology, 169-170, pp.192-211, ISSN: 0169-555X. DOI: 10.1016/j.geomorph.2012.05.014.

Liu, X, Parker, G, Czuba, JA, Oberg, K, Mier, JM, Best, JL, Parsons, DR, Ashmore, P, Krishnappan, BG, Garcia, MH (2012) Sediment mobility and bed armoring in the St Clair River: insights from hydrodynamic modeling, Earth Surface Processes and Landforms, 37(9), pp.957-970, ISSN: 0197-9337. DOI: 10.1002/esp.3215.

Thomas, RE, Parsons, DR, Sandbach, SD, Keevil, GM, Marra, WA, Hardy, RJ, Best, JL, Lane, SN, Ross, JA (2011) An experimental study of discharge partitioning and flow structure at symmetrical bifurcations, Earth Surface Processes and Landforms, 36(15), pp.2069-2082, ISSN: 0197-9337. DOI: 10.1002/esp.2231.

Czuba, JA, Best, JL, Oberg, KA, Parsons, DR, Jackson, PR, Garcia, MH, Ashmore, P (2011) Bed morphology, flow structure, and sediment transport at the outlet of Lake Huron and in the upper St. Clair River, Journal of Great Lakes Research, 37(3), pp.480-493, ISSN: 0380-1330. DOI: 10.1016/j.jglr.2011.05.011.

Hardy, RJ, Best, JL, Parsons, DR, Keevil, GM (2011) On determining the geometric and kinematic characteristics of coherent flow structures over a gravel bed: a new approach using combined PLIF‐PIV, Earth Surface Processes and Landforms, 36(2), pp.279-284, ISSN: 0197-9337. DOI: 10.1002/esp.2118.

Parsons, DR, Peakall, J, Aksu, AE, Flood, RD, Hiscott, RN, Beşiktepe, Ş, Mouland, D (2010) Gravity-driven flow in a submarine channel bend: Direct field evidence of helical flow reversal, Geology, 38(12), pp.1063-1066, ISSN: 0091-7613. DOI: 10.1130/g31121.1.

Edmonds, D, Slingerland, R, Best, J, Parsons, D, Smith, N (2010) Response of river‐dominated delta channel networks to permanent changes in river discharge, Geophysical Research Letters, 37(12), 2010GL043269, ISSN: 0094-8276. DOI: 10.1029/2010gl043269.

Best, J, Simmons, S, Parsons, D, Oberg, K, Czuba, J, Malzone, C (2010) A new methodology for the quantitative visualization of coherent flow structures in alluvial channels using multibeam echo‐sounding (MBES), Geophysical Research Letters, 37(6), 2009GL041852, ISSN: 0094-8276. DOI: 10.1029/2009gl041852.

Simmons, SM, Parsons, DR, Best, JL, Orfeo, O, Lane, SN, Kostaschuk, R, Hardy, RJ, West, G, Malzone, C, Marcus, J, Pocwiardowski, P (2010) Monitoring Suspended Sediment Dynamics Using MBES, Journal of Hydraulic Engineering, 136(1), pp.45-49, ISSN: 0733-9429. DOI: 10.1061/(asce)hy.1943-7900.0000110.

SHUGAR, DH, KOSTASCHUK, RAY, BEST, JL, PARSONS, DR, LANE, SN, ORFEO, O, HARDY, RJ (2010) On the relationship between flow and suspended sediment transport over the crest of a sand dune, Río Paraná, Argentina, Sedimentology, 57(1), pp.252-272, ISSN: 0037-0746. DOI: 10.1111/j.1365-3091.2009.01110.x.

Kostaschuk, R, Shugar, D, Best, J, Parsons, D, Lane, S, Hardy, R, Orfeo, O (2009) Suspended sediment transport and deposition over a dune: Río Paraná, Argentina, Earth Surface Processes and Landforms, 34(12), pp.1605-1611, ISSN: 0197-9337. DOI: 10.1002/esp.1847.

Sambrook Smith, GH, Ashworth, PJ, Best, JL, Lunt, IA, Orfeo, O, Parsons, DR (2009) The Sedimentology and Alluvial Architecture of a Large Braid Bar, Rio Parana, Argentina, Journal of Sedimentary Research, 79(8), pp.629-642, ISSN: 1527-1404. DOI: 10.2110/jsr.2009.066.

Szupiany, RN, Amsler, ML, Parsons, DR, Best, JL (2009) Morphology, flow structure, and suspended bed sediment transport at two large braid‐bar confluences, Water Resources Research, 45(5), 2008WR007428, ISSN: 0043-1397. DOI: 10.1029/2008wr007428.

Kay, P, Armstrong, A, McDonald, A, Parsons, D, Best, J, Peakall, J, Walker, A, Foulger, M, Gledhill, S, Tillotson, M (2009) A pilot study of the efficacy of residuum lodges for managing sediment delivery to impoundment reservoirs, Water and Environment Journal, 23(1), pp.52-62, ISSN: 1747-6585. DOI: 10.1111/j.1747-6593.2008.00111.x.

Lane, SN, Parsons, DR, Best, JL, Orfeo, O, Kostaschuk, RA, Hardy, RJ (2008) Causes of rapid mixing at a junction of two large rivers: Río Paraná and Río Paraguay, Argentina, Journal of Geophysical Research: Earth Surface, 113(F2), 2006JF000745, ISSN: 0148-0227. DOI: 10.1029/2006jf000745.

Corney, RKT, Peakall, J, Parsons, DR, Elliott, L, Best, JL, Thomas, RE, Keevil, GM, Ingham, DB, Amos, KJ (2008) Reply to Discussion of Imran et al. on “The orientation of helical flow in curved channels” by Corney et al, Sedimentology, 53, 249–257, Sedimentology, 55(1), pp.241-247, ISSN: 0037-0746. DOI: 10.1111/j.1365-3091.2007.00925.x.

Szupiany, RN, Amsler, ML, Best, JL, Parsons, DR (2007) Comparison of Fixed- and Moving-Vessel Flow Measurements with an aDp in a Large River, Journal of Hydraulic Engineering, 133(12), pp.1299-1309, ISSN: 0733-9429. DOI: 10.1061/(asce)0733-9429(2007)133:12(1299).

Hardy, RJ, Lane, SN, Ferguson, RI, Parsons, DR (2007) Emergence of coherent flow structures over a gravel surface: A numerical experiment, Water Resources Research, 43(3), 2006WR004936, ISSN: 0043-1397. DOI: 10.1029/2006wr004936.

Parsons, DR, Best, JL, Lane, SN, Orfeo, O, Hardy, RJ, Kostaschuk, R (2007) Form roughness and the absence of secondary flow in a large confluence–diffluence, Rio Paraná, Argentina, Earth Surface Processes and Landforms, 32(1), pp.155-162, ISSN: 0197-9337. DOI: 10.1002/esp.1457.

CORNEY, RKT, PEAKALL, J, PARSONS, DR, ELLIOTT, L, AMOS, KJ, BEST, JL, KEEVIL, GM, INGHAM, DB (2006) The orientation of helical flow in curved channels, Sedimentology, 53(2), pp.249-257, ISSN: 0037-0746. DOI: 10.1111/j.1365-3091.2006.00771.x.

Thorne, P, Parsons, D, Best, J (2006) Sounding out our coastlines and rivers, Planet Earth, (SPRING), pp.12-13, ISSN: 1479-2605.

Parsons, DR, Best, JL, Orfeo, O, Hardy, RJ, Kostaschuk, R, Lane, SN (2005) Morphology and flow fields of three‐dimensional dunes, Rio Paraná, Argentina: Results from simultaneous multibeam echo sounding and acoustic Doppler current profiling, Journal of Geophysical Research: Earth Surface, 110(F4), 2004JF000231, ISSN: 0148-0227. DOI: 10.1029/2004jf000231.

Keylock, CJ, Hardy, RJ, Parsons, DR, Ferguson, RI, Lane, SN, Richards, KS (2005) The theoretical foundations and potential for large-eddy simulation (LES) in fluvial geomorphic and sedimentological research, Earth-Science Reviews, 71(3-4), pp.271-304, ISSN: 0012-8252. DOI: 10.1016/j.earscirev.2005.03.001.

PARSONS, D, WIGGS, G, WALKER, I, FERGUSON, R, GARVEY, B (2004) Numerical modelling of airflow over an idealised transverse dune, Environmental Modelling & Software, 19(2), pp.153-162, ISSN: 1364-8152. DOI: 10.1016/s1364-8152(03)00117-8.

Ferguson, RI, Parsons, DR, Lane, SN, Hardy, RJ (2003) Flow in meander bends with recirculation at the inner bank, Water Resources Research, 39(11), 2003WR001965, ISSN: 0043-1397. DOI: 10.1029/2003wr001965.

Parsons, DR (2003) Discussion of “Three-Dimensional Numerical Study of Flows in Open-Channel Junctions” by Jianchun Huang, Larry J. Weber, and Yong G. Lai, Journal of Hydraulic Engineering, 129(10), pp.822-823, ISSN: 0733-9429. DOI: 10.1061/(asce)0733-9429(2003)129:10(822).

Hardy, RJ, Lane, SN, Ferguson, RI, Parsons, DR (2003) Assessing the credibility of a series of computational fluid dynamic simulations of open channel flow, Hydrological Processes, 17(8), pp.1539-1560, ISSN: 0885-6087. DOI: 10.1002/hyp.1198.

Conferences

Ockelford, A, Wu, X, Parsons, D (2025) Influence of sediment size on microplastic fragmentation. In , River Flow Proceedings of the 12th International Conference on Fluvial Hydraulics River Flow 2024, pp.707-710, DOI: 10.1201/9781003475378-103.

Russell, CE, Fernández, R, Parsons, DR, Gabbott, SE (2024) Bedform morphology changes due to plastic pollution: Preliminary observations and potential implications. In , River Flow Proceedings of the 11th Conference on Fluvial Hydraulics 2022, pp.269-272, DOI: 10.1201/9781003323037-36.

Rizaev, IG, Dorrell, RM, Oikonomou, CLG, Tapoglou, E, Hall, C, Aggidis, GA, Parsons, DR (2023) Wave power resource dynamics for the period 1980-2021 in Atlantic Europe's Northwest seas. In , Proceedings of the International Offshore and Polar Engineering Conference, pp.644-649.

Fernandez, R, Kassem, H, Wu, X, Parsons, DR (2022) Changes in Ripple Migration Rates and Hydraulic Resistance with Increasing Mud-to-Sand Ratios. In , Proceedings of the IAHR World Congress, pp.5671-5676, DOI: 10.3850/IAHR-39WC2521716X20221870.

Fernandez, RL, Parsons, D, McLelland, S, Bodewes, B (2020) Changes in braided river morphology resulting from a flood sequence. In , River Flow 2020 Proceedings of the 10th Conference on Fluvial Hydraulics, pp.502-509.

Unsworth, CA, Nicholas, AP, Ashworth, PJ, Simpson, CJ, Best, JL, Lane, SN, Parsons, DR, Sambrook Smith, GH (2016) Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. In , River Flow Proceedings of the International Conference on Fluvial Hydraulics River Flow 2016, pp.1138-1146, DOI: 10.1201/9781315644479-180.

Marjoribanks, TI, Hardy, RJ, Lane, SN, Parsons, DR (2014) Dynamic drag modeling of submerged aquatic vegetation canopy flows. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2014, pp.517-524, DOI: 10.1201/b17133-73.

Marjoribanks, TI, Hardy, RJ, Lane, SN, Parsons, DR (2014) Extending the canopy flow model for natural, highly flexible macrophyte canopies. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2014, pp.509-516, DOI: 10.1201/b17133-72.

Hardy, RJ, Marjoribanks, TI, Parsons, DR, Reesink, AJ, Murphy, B, Ashworth, PJ, Best, JL (2014) Modelling time dependent flow fields over three dimensional dunes. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2014, pp.1045-1052, DOI: 10.1201/b17133-141.

Reesink, AJH, Parsons, DR, Thomas, RE (2014) Sediment transport and bedform development in the lee of bars: Evidence from fixed- and partially-fixed bed experiments. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2014, pp.1179-1186, DOI: 10.1201/b17133-158.

Thomas, RE, Johnson, MF, Frostick, LE, Parsons, DR, Bouma, TJ, Dijkstra, JT, Eiff, O, Gobert, S, Henry, P-Y, Kemp, P, McLelland, SJ, Moulin, FY, Myrhaug, D, Neyts, A, Paul, M, Penning, WE, Rice, SP, Puijalon, S, Stanica, A, Tagliapietra, D, Tal, M, Torum, A, Vousdoukas, MI (2013) Physical Modeling of Water, Fauna and Flora: A Foresight Study for Ecohydraulics. In , PROCEEDINGS OF THE 35TH IAHR WORLD CONGRESS, VOLS I AND II, pp.3001-3008.

Simmons, SM, Parsons, DR, Best, JL (2012) Field methods for imaging suspended sediment dynamics and fluxes with a multi-beam echosounder. In , 11th European Conference on Underwater Acoustics 2012 Ecua 2012, pp.792-799.

Gutierrez, RR, Abad, JD, Parsons, D, Best, J, Orfeo, O (2011) Wavelets Application to Study the Bedforms of Parana River. In World Environmental and Water Resources Congress 2011, pp.2389-2397, DOI: 10.1061/41173(414)248.

Szupiany, RN, Amsler, ML, Parsons, DR, Best, JL, Haydel, R (2008) Comparisons of morphology and flow structure at two braid-bar confluences in a large river. In , River Coastal and Estuarine Morphodynamics Rcem 2007 Proceedings of the 5th IAHR Symposium on River Coastal and Estuarine Morphodynamics, pp.807-814.

Orfeo, O, Parsons, DR, Best, JL, Lane, SN, Hardy, RJ, Kostaschuk, R, Szupiany, RN, Amsler, ML (2006) Morphology and flow structures in a large confluence-diffluence: Rio Paraná, Argentina. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2006, pp.1277-1282.

Parsons, DR, Best, JL, Lane, SN, Hardy, RJ, Kostaschuk, R, Shugar, D, Orfeo, O (2006) Morphology, flow and sediment transport over a natural 3D dune field: Rio Paraná, Argentina. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2006, pp.997-1004.

Hardy, RJ, Parsons, DR, Best, JL, Lane, SN, Kostaschuk, R, Orfeo, O (2006) Three-dimensional numerical modeling of flows over a natural dune field. In , Proceedings of the International Conference on Fluvial Hydraulics River Flow 2006, pp.1077-1083.

Szupiany, RN, Parsons, DR, Best, JL, Amsler, ML, Orfeo, O (2006) Morphology and secondary currents in a confluence with discordant channels, Parana River, Argentina. In , International Symposium on Hydraulic Structures Xxii Congreso Latinoamericano De Hidraulica.

Parsons, DR, Walker, IJ, Wiggs, GFS (2004) Numerical modelling of flow structures over idealized transverse aeolian dunes of varying geometry. In , Geomorphology, pp.149-164, DOI: 10.1016/j.geomorph.2003.09.012.

Books

Ashworth, PJ, Best, JL, Parsons, DR (2015) Preface. DOI: 10.1016/B978-0-444-63529-7.09985-5.

Chapters

Rowley, P, Rebecca Williams, Johnson, M, Johnston, T, Dowey, N, Parsons, D, Provost, A, Roche, O, Smith, G, Walding, N (2025) Spontaneous unsteadiness and sorting in pyroclastic density currents and their deposits. In Kneller, B, Meiburg, E, Vowinckel, B, He, Z (ed) Particulate Gravity Currents: Theory, Experiments, and Environmental Applications, Wiley / American Geophysical Union, pp.249-266, ISBN: 9781394216727. DOI: 10.1002/9781394216727.ch16.

Rowley, P, Williams, R, Johnson, M, Johnston, T, Dowey, N, Parsons, D, Provost, A, Roche, O, Smith, G, Walding, N (2025) Spontaneous Unsteadiness and Sorting in Pyroclastic Density Currents and Their Deposits. In Particulate Gravity Currents Theory Experiments and Environmental Applications, pp.249-266, DOI: 10.1002/9781394216727.ch16.

Clare, M, Lintern, DG, Rosenberger, K, Clarke, JEH, Paull, C, Gwiazda, R, Cartigny, MJB, Talling, PJ, Perara, D, Xu, J, Parsons, D, Jacinto, RS, Apprioual, R (2020) Lessons learned from the monitoring of turbidity currents and guidance for future platform designs. In Geological Society Special Publication, pp.605-634, DOI: 10.1144/SP500-2019-173.

Schwendel, A, Aalto, R, Nicholas, A, Parsons, D (2018) Fill characteristics of abandoned channels and resulting stratigraphy of a mobile sand-bed river floodplain. In Fluvial Meanders and their Sedimentary Products in the Rock Record, pp.251-272, DOI: 10.1002/9781119424437.ch10.

Unsworth, CA, Nicholas, AP, Ashworth, PJ, Simpson, CJ, Best, JL, Lane, SN, Parsons, DR, Sambrook Smith, GH (2016) Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. In River Flow 2016 Iowa City Usa July 11 14 2016, pp.1138-1143.

Carling, PA, Chateau, CC, Leckie, DA, Langdon, CT, Scaife, RG, Parsons, DR (2015) Sedimentology of a tidal point-bar within the fluvial-tidal transition: River Severn Estuary, UK. In Developments in Sedimentology, pp.149-189, DOI: 10.1016/B978-0-444-63529-7.00008-0.

Prokocki, EW, Best, JL, Ashworth, PJ, Parsons, DR, Smith, GHS, Nicholas, AP, Simpson, CJ, Wang, H, Sandbach, SD, Keevil, CE (2015) Mid to late Holocene geomorphological and sedimentological evolution of the fluvial-tidal zone. Lower Columbia River, WA/OR, USA. In Developments in Sedimentology, pp.193-226, DOI: 10.1016/B978-0-444-63529-7.00022-5.

Keevil, CE, Parsons, DR, Keevil, GM, Ainsley, M (2015) Three-dimensional meander bend flow within the tidally influenced fluvial zone. In Developments in Sedimentology, Elsevier, pp.127-148, ISBN: 9780444635297. DOI: 10.1016/b978-0-444-63529-7.00006-7.

Prokocki, EW, Best, JL, Ashworth, PJ, Parsons, DR, Smith, GHS, Nicholas, AP, Simpson, CJ, Wang, H, Sandbach, SD, Keevil, CE (2015) Mid to late Holocene geomorphological and sedimentological evolution of the fluvial–tidal zone. In Developments in Sedimentology, Elsevier, pp.193-226, ISBN: 9780444635297. DOI: 10.1016/b978-0-444-63529-7.00022-5.

Ashworth, PJ, Best, JL, Parsons, DR (2015) Preface. In Developments in Sedimentology, Elsevier, pp.xxi-xxii, DOI: 10.1016/b978-0-444-63529-7.09985-5.

Carling, PA, Chateau, CC, Leckie, DA, Langdon, CT, Scaife, RG, Parsons, DR (2015) Sedimentology of a tidal point-bar within the fluvial–tidal transition. In Developments in Sedimentology, Elsevier, pp.149-189, DOI: 10.1016/b978-0-444-63529-7.00008-0.

Thomas, RE, McLelland, SJ, Eiff, O, Parsons, DR (2014) Flow measurement around organisms and surrogates. In Users Guide to Ecohydraulic Modelling and Experimentation, pp.43-74, DOI: 10.1201/b16630-11.

Hardy, RJ, Best, JL, Marjoribanks, TI, Parsons, DR, Rosser, NJ (2013) Detection and Analysis of Coherent Flow Structures in a Depth‐Limited Flow Over a Gravel Surface. In Unknown Parent Title, Wiley, pp.199-214, ISBN: 9781119962779. DOI: 10.1002/9781118527221.ch13.

Parsons, DR, Best, JL, Lane, SN, Kostaschuk, RA, Hardy, RJ, Orfeo, O, Amsler, ML, Szupiany, RN (2008) Large River Channel Confluences. In Unknown Parent Title, Wiley, pp.73-91, ISBN: 9780470026724. DOI: 10.1002/9780470760383.ch5.

Lane, SN, Hardy, RJ, Ferguson, RI, Parsons, DR (2005) A Framework for Model Verification and Validation of CFD Schemes in Natural Open Channel Flows. In Unknown Parent Title, Wiley, pp.169-192, ISBN: 9780470843598. DOI: 10.1002/0470015195.ch8.

Internet Publications

Wortmann, M, Slater, L, Hawker, L, Liu, Y, Neal, J, Zhang, B, Schwenk, J, Allen, G, Ashworth, P, Boothroyd, R, Cloke, H, Delorme, P, Gebrechorkos, SH, Griffith, H, Leyland, J, McLelland, S, Nicholas, AP, Sambrook-Smith, G, Vahidi, E, Parsons, D, Darby, SE (2025) Supplementary information files for "Global River Topology (GRIT): A Bifurcating River Hydrography".

Datasets

Walding, N, Williams, R, Downey, N, Rowley, P, Thomas, M, Osman, S, Johnson, M, Parsons, D (2025) Supplementary information files for "The influence of moisture on ash strength: implications for understanding volcanic stratigraphy", DOI: 10.17028/rd.lboro.29390423.

Mendrik, F, R Hackney, C, M Cumming, V, Waller, C, Hak, D, Dorrell, R, Nghia Hung, N, Parsons, D (2024) Supplementary information files for "The transport and vertical distribution of microplastics in the Mekong River, SE Asia", DOI: 10.17028/rd.lboro.28938317.

L. Baker, M, J. Talling, P, Burnett, R, L. Pope, E, C. Ruffell, S, Urlaub, M, A. Clare, M, Jenkins, J, Dietze, M, Neasham, J, Silva Jacinto, R, Hage, S, Hasenhündl, M, M. Simmons, S, J. Heerema, C, S. Heijnen, M, Kunath, P, Parsons, D, J. B. Cartigny, M, McGhe, C (2024) Supplementary information files for "Seabed seismographs reveal duration and structure of longest runout sediment flows on earth", DOI: 10.17028/rd.lboro.28980959.

C. Ruffell, S, J. Talling, P, L. Baker, M, Pope, EL, S. Heijnen, M, Silva Jacinto, R, J.B. Cartigny, M, M. Simmons, S, A. Clare, M, J. Heerema, C, McGhee, C, Hage, S, Hasenhündl, M, Parsons, D, Science Parties on JC187, S, research cruises, J (2024) Supplementary information files for "Time-lapse surveys reveal patterns and processes of erosion by exceptionally powerful turbidity currents that flush submarine canyons: A case study of the Congo Canyon", DOI: 10.17028/rd.lboro.28615322.

H. Gebrechorkos, S, Leyland, J, J. Dadson, S, Cohen, S, Slater, L, Wortmann, M, J. Ashworth, P, L. Bennett, G, Boothroyd, R, Cloke, H, Delorme, P, Griffith, H, Hardy, R, Hawker, L, McLelland, S, Neal, J, Nicholas, A, J. Tatem, A, Vahidi, E, Liu, Y, Sheffield, J, Parsons, D, E. Darby, S (2024) Supplementary information files for "Global-scale evaluation of precipitation datasets for hydrological modelling", DOI: 10.17028/rd.lboro.28532876.

Ockelford, A, Wohl, E, Ruiz‐Villanueva, V, Comiti, F, Piégay, H, Darby, S, Parsons, D, Yochum, SE, Wolstenholme, J, White, D, Uno, H, Triantafillou, S, Stroth, T, Smrdel, T, Scott, DN, Scamardo, JE, Rees, J, Rathburn, S, Morrison, RR, Milan, D, Marshall, A, Lininger, KB, Kemper, JT, Karpack, M, Johaneman, T, Iskin, E, del Hoyo, JG, Hortobágyi, B, Hinshaw, S, Heath, J, Emmanuel, T, Dunn, S, Christensen, N, Beeby, J, Ash, J, Ader, E, Aarnink, J (2024) Supplementary information for Working with wood in rivers in the Western United States, DOI: 10.17028/rd.lboro.27719772.

A. G. P. Van Dijk, T, Roche, M, Lurton, X, Fezzani, R, M. Simmons, S, Gastauer, S, Fietzek, P, Mesdag, C, Berger, L, Klein Breteler, M, Parsons, D (2024) Supplementary information files for "Bottom and suspended sediment backscatter measurements in a flume—Towards quantitative bed and water column properties", DOI: 10.17028/rd.lboro.28615463.

Azpiroz-Zabala, M, J. Sumner, E, J. B. Cartigny, M, Peakall, J, Clare, MA, E. Darby, S, Parsons, D, M. Dorrell, R, Özsoy, E, Tezcan, D, B. Wynn, J. Johnson, R (2024) Supplementary information files for "Benthic biology influences sedimentation in submarine channel bends: Coupling of biology, sedimentation and flow", DOI: 10.17028/rd.lboro.28616273.

Mendrik, F, C. Houseago, R, R. Hackney, C, Parsons, D (2023) Supplementary information files for "Microplastic trapping efficiency and hydrodynamics in model coral reefs: A physical experimental investigation", DOI: 10.17028/rd.lboro.28616576.

Gebrechorkos, S, Leyland, J, Slater, L, Wortmann, M, J. Ashworth, P, L. Bennett, G, Boothroyd, R, Cloke, H, Delorme, P, Griffith, H, Hardy, R, Hawker, L, McLelland, S, Neal, J, Nicholas, A, J Tatem, A, Vahidi, E, Parsons, D, E. Darby, S (2023) Supplementary information files for "A high-resolution daily global dataset of statistically downscaled CMIP6 models for climate impact analyses", DOI: 10.17028/rd.lboro.28624307.

Berchoux, T, W. Hutton, C, Hensengerth, O, P.D.Tri, V, E. Voepel, H, T. Vu, P, N. Hung, N, Parsons, D, E. Darby, S (2023) Supplementary information files for "Effect of planning policies on land use dynamics and livelihood opportunities under global environmental change: Evidence from the Mekong Delta", DOI: 10.17028/rd.lboro.28638695.

Fukuda, S, G. W. de Vet, M, W. G. Skevington, E, Bastianon, E, Fernández, R, Wu, X, D. McCaffrey, W, Naruse, H, Parsons, D, M. Dorrell, R (2023) Supplementary information files for "Inadequacy of fluvial energetics for describing gravity current autosuspension", DOI: 10.17028/rd.lboro.28623950.

Mendrik, F, Fernández, R, R. Hackey, C, Waller, C, Parsons, D (2023) Supplementary information files for "Non-buoyant microplastic settling velocity varies with biofilm growth and ambient water salinity", DOI: 10.17028/rd.lboro.28623626.

Wu, X, Fernandez, R, Baas, JH, Malarkey, J, Parsons, D (2022) Supplementary information files for "Discontinuity in equilibrium wave-current ripple size and shape and deep cleaning associated with cohesive sand-clay beds", DOI: 10.17028/rd.lboro.28639721.

L.Pope, E, S.Heijnen, M, J.Talling, P, Silva Jacinto, R, Gaillot, A, L. Baker, M, Hage, S, Hasenhündl, M, J.Heerema, C, McGhee, C, C.Ruffell, S, M.Simmons, S, J.B.Cartigny, M, A.Clare, M, Dennielou, B, Parsons, D, Peirce, C, Urlaub, M (2022) Supplementary information files for "Carbon and sediment fluxes inhibited in the submarine Congo Canyon by landslide-damming", DOI: 10.17028/rd.lboro.28751003.

Other

Hope, J, Chocholek, M, Rimmer, J, Baar, A, Thomas, R, Paterson, D, Harrison, L, Fernández, R, Parsons, D (2025) The role of benthic biofilms in trapping estuarine microplastics, Benthic biofilms are known for their ability to stabilise and trap fine estuarine sediments and contaminants. Due to their presence on the sediment surface, benthic biofilms interact with emerging contaminants such as microplastics (MPs) that settle to the bed, potentially influencing MP transport dynamics from land to sea. This study explores the influence of benthic biofilm development on the capture and retention of MPs under flow and how other chemical stressors adsorbed to the MPs, such as heavy metals, may influence biofilm retention of MPs. We hypothesised that i) higher biofilm development would increase MP capture and retention under flow and ii) that heavy metals associated with MPs would negatively affect the biofilm community and its ability to retain MPs.Sieved sediment (500µm to remove large fauna) was added to small 250mL chambers and inoculated with 30mL of biofilm-rich surface sediment (control-absent, low and high biofilm biomass). Tidal simulation in an outdoor greenhouse promoted biofilm development in chambers over 21 days. High-density MPs (polyamide) MPs were added to the chambers at ‘high tide’ on day 14. These MPs were mechanically- and UV-aged then exposed to heavy metals (control (no metal), copper (Cu) and lead (Pb) prior to their use. MPs were also fluorescently stained with a non-toxic dye to aid in MP erosion measurements. At the end of the incubation period, intact inner cores were gently removed, flushed and placed level with the bed of a small benchtop recirculating flume and exposed to incremental increases in flow velocity to erode the MPs. All experimental runs were filmed under UV light to fluoresce MPs and image analysis was used to determine the critical erosion threshold for MP motion from the video footage based on the loss of coverage across the core area. The remaining sediment from the chambers was extracted for biochemical analysis. Significantly higher critical shear stresses were required to remove MPs from the bed when biofilm was present, while Cu and Pb contamination had minimal effects on MP resuspension. This suggests that benthic biofilms have the potential to mediate MP resuspension dynamics and therefore MP transport from land-to-sea. Comparing our MP erosion thresholds (for PA particles only) against the bed shear stresses from a 2-D hydrodynamic model of the macrotidal Humber estuary, UK, it was found that MP erosion thresholds would be exceed in ~76% of the modelled cells during a 10-day simulation period covering a late-neap, spring, early-neap tidal cycle in the absence of biofilms. However, the presence of biofilm reduced the area of critical shear stress exceedance to ~36%. Without biofilms, MP erosion thresholds would be exceeded in 80% of the permanently inundated cells and 11.3% of the intertidal cells. Again, with biofilms present, MP erosion thresholds would be exceeded in 38% of the permanently inundated cells and just 3.8% of the intertidal cells. These findings can help improve our understanding of MP fluxes across the sediment-water interface in estuaries and provides evidence that the role of benthic biofilms should be included when parameterising MP transport models. . DOI: 10.5194/egusphere-egu25-4210.

Parsons, KJ, Williams, AL, Slater, L, Parsons, D, Wolstenholme, J (2025) Reimagining Rivers: A co-created and youth-informed approach to exploring river morphodynamics and flood risk, Climate resilience is critical for enabling communities and ecosystems to adapt to and thrive amidst escalating climate hazards. This paper presents an interdisciplinary, co-created initiative that engaged young people in understanding and addressing river morphodynamics and flood risks through creative and participatory methods. This collaboration between academics, Global Link Development Education Centre, Girlguiding North West England and the Environment Agency, worked with a group of children aged 8 to10 with the objective of develop a transdisciplinary approach to public engagement on flooding, filling critical knowledge and action gaps. The project combined scientific insights from the EvoFlood program with local knowledge and participatory techniques to create workshops tailored for youth. These hands-on workshops featured drama games, science experiments, field walks, and creative activities such as crafting, fostering a deeper understanding of river systems and their role in flood risk and resilience. Young participants explored concepts such as the causes of flooding, its impacts, and ways to prepare for and adapt to these risks. The workshops culminated in the co-development of two educational resources: Flooding Mucky Dip! which is an interactive game addressing flood preparedness and recovery; and Flooding Fortune Tellers, which creatively distilled participants’ learning about flood risks into an accessible and interactive format. These resources are now integrated into a Girlguiding Badge and Challenge Pack, and on the Flood Hub website, ensuring their wide dissemination to youth and community groups across the UK.A key strength of the project was its interdisciplinary and community-focused approach, which promoted a “bottom-up” method of engagement. Drawing on the “looping action research” framework, the project team incorporated ongoing feedback from participants, community leaders, and scientific advisors to iteratively refine the workshops and resources. This responsive methodology not only ensured that activities were engaging and relevant but also empowered participants to take ownership of their learning and apply it to real-world resilience challenges. This paper highlights the importance of interdisciplinary collaboration, participatory methodologies, and place-based learning in bridging the gap between scientific research and community youth-led action. By focusing on youth engagement, the project demonstrates how grassroots initiatives can inform broader strategies for climate adaptation and flood resilience building, offering a scalable model for addressing similar challenges in other contexts which are able to empower youth as agents of change in the face of growing climate risks.. DOI: 10.5194/egusphere-egu25-20812.

Mason, R, Delorme, P, Murphy, B, McLelland, S, Baynes, E, Polvi, L, Rice, S, Parsons, D (2025) Effect of incision on river response to floods: Insights from flume experiments, Flood risk is increasing worldwide, however, studies on river geomorphological responses to floods often lack explicit consideration of anthropogenic impacts on rivers. A pervasive impact of human modification has been the conversion of anabranching riverscapes to incised, single thread, so called ‘fire-hose’ channels. However, the consequences of such modification for river functioning are poorly understood, restricting our ability to manage flood risk in modified systems or restore these riverscapes. Therefore, we aim to determine how incision of gravel bed rivers modifies their geomorphological response to flood events. We undertook an experiment in a large hydraulic flume, designed to simulate an alluvial gravel-bed river. The flume was filled with loose sand and seeded with alfalfa to represent riparian vegetation. Under our initial conditions of low flow and sediment input, a fully equilibrium anabranching channel developed. Subsequently, we simulated both small and large flood events. We then prompted incision by lowering the downstream base level, allowed the channel to reach a new equilibrium state, and conducted the same flood sequence. We compare the response of the anabranching and incised treatments to floods, in terms of geomorphic work done, morphological response and sediment output. First, we found that for the same input conditions, both anabranching and incised, single thread, equilibrium states existed, determined by the historical changes in base level modification. However, the two equilibrium states responded very differently to flood events. Riparian vegetation played a critical role in this process, reducing widening and channel migration associated with incision in non-vegetated experiments. Instead, channel morphological changes to high flows after incision were predominantly through adjustments to river depth. Second, incision reduced flooding because even the largest flows were fully contained within the channel. However, sediment export from the incised channel during floods was nearly double that of the anabranching treatment. Consequently, incision reduced flood extents locally, but may exacerbate flood risk overall by transporting water quickly downstream and exporting much greater amounts of sediment which could reduce channel capacity at other parts of the river network.. DOI: 10.5194/egusphere-egu25-15572.

Tomsett, C, Leyland, J, Darby, S, Gernon, T, Parsons, D, Hincks, T, Wolstenholme, J (2025) Vertical Mixing of Suspended Sediment in Big Rivers using ADCP data and Machine Learning, Sediment is an intrinsic component of the fluvial network, supplying material for floodplains and coastal landforms which provide resilience during flooding and storms. As a result, an understanding of the fluvial processes that control how much sediment moves through our river systems, and how this varies across the globe, is of fundamental importance.For the purpose of estimating sediment delivery through the fluvial network, it is often assumed that rivers are well mixed through their vertical extent. However, empirical data reveals that there is frequently large variability in the concentration of sediment through the water column. Better understanding this variability is of interest to the geomorphological community to help explain variations in sediment transport and improve estimates of sediment flux.In this research, we utilise a collection of Acoustic Doppler Current Profiler (ADCP) data from large rivers across the globe to investigate variations in the vertical distribution of suspended sediment. Calibrations of ADCP backscatter to Suspended Sediment Concentration (SSC) from the wider literature are used, alongside median grainsize and acoustic frequency, to create a Machine Learning (ML) model from which SSC from uncalibrated ADCPs can be estimated. This new ML model is subsequently implemented to explore the variations in the vertical mixing of suspended sediment both temporally and spatially. This variability is explored to identify the importance of catchment characteristics in determining variations in suspended sediment concentration within the water column. Comparison of multiple river systems and their catchment characteristics, both between sites and through time, enables the identification of key attributes which exert a greater control on this variation through the water column. Subsequently, this leads to an improved understanding of sediment flux through the river system, whereby knowing the variation in sediment concentration within the water column can help to better calibrate current methods of estimating flux.. DOI: 10.5194/egusphere-egu24-9717.

Wolstenholme, J, Skinner, C, Milan, D, Thomas, R, Parsons, D (2025) Basin-scale hydrological response to leaky wooden dam installation, Leaky wooden dams are commonly incorporated into rivers as part of restoration efforts to increase channel roughness and force geomorphic complexity, slowing the flow in the headwaters and aiming to desynchronise flows to reduce downstream flood risk. These structures are (dis)connectivity agents, working to decrease longitudinal connectivity whilst simultaneously increasing floodplain connectivity and encouraging water storage.Most numerical modelling of leaky wooden dams at the basin scale does not consider sediment transport at spatial resolutions fine enough to appropriately represent the dams as individual features. Due to the paucity of both spatially- and temporally-distributed sediment transport data, there is also a high level of uncertainty regarding the influence of leaky wooden dams on basin hydrology over time, yet it is important that we consider the geomorphological influence of these structures and how their evolution influences flood hazard, particularly given that extreme storms are becoming increasingly common.This study implements a heuristic behavioural approach within the landscape evolution model CAESAR-Lisflood to assess the broad influence of leaky wooden dams on a 32 km2 prototype catchment with a mixture of first, second and third order streams. A 20-year spatially-distributed modelled rainfall time series capable of representing convective storms (2020–2040 obtained from the 2018 UK Climate Projections) was used to drive the hydrology across a suite of simulations where leaky wooden dam location in the river network was systematically varied.Installing leaky wooden dams only on first order streams desynchronised flow and reduced downstream flood peaks by up to 50% whilst retaining the greatest volume of water in the catchment when compared to other stream order combinations. Conversely, installing leaky wooden dams on only third order streams increased peak discharge by over 10% for 22% of storm events owing to the presence of fewer structures and therefore reduced opportunity for desynchronisation of peak flows from the various sub-catchments. Most importantly we detail how storm sequencing, and the capacity of the active channel, plays an important role in exacerbating flood risk, with frequent, yet relatively minor, storms increasing peak discharge despite the presence of leaky wooden dams. As such where leaky dam interventions are installed plays a critical role in their efficacy in mitigating flood peaks and should be given more consideration by practitioners.. DOI: 10.5194/egusphere-egu24-8881.

Russell, C, Fernandez, R, Parsons, D, Pohl, F (2025) The impact of plastic pollution in sandy riverbeds, Plastic is ubiquitous in the landscape and rivers are increasingly important vectors for its transport. Some riverbeds exhibit bedforms including ripples and dunes, which are well understood, but understanding of plastic in bedforms is in its infancy. In this study, flume tank experiments show that when plastic particles are introduced to sandy riverbeds, bedforms change character and behaviour. We detail i) mechanisms of plastic incorporation and transport in riverbed dunes, ii) the topographic changes that occur on the riverbed, and iii) quantify plastic-induced changes in sand transport downstream. We find that plastic directly affects bed topography and locally increases the proportion of sand suspended in the water column, even at very low concentrations in the sand. In the wider environment, such changes have the potential to impact river ecosystems and wider landscapes. Different plastic types and shapes have different impacts, therefore the classification of plastic ought to be consistent and comparable to sediment. Considering plastic as a sediment, we present a classification scheme, to enable better comparison of plastic to sediment such that we can better understand their interaction with sediment as a sedimentary particle, and therefore why plastics accumulate where they do. This is importantly not just another classification scheme, but a philosophically grounded solution to a long-standing challenge that is set to be of increasing significance in increasingly contaminated contemporary settings. We set the framework to a suite of questions that will aid understanding of plastic routing and accumulation in the rivers and the wider landscape.. DOI: 10.5194/egusphere-egu24-20585.

Lotsari, E, de Vet, M, Murphy, B, McLelland, S, Parsons, D (2025) Defrosting river banks: morphodynamics and sediment flux, Climate warming is projected to impact hydrology and change ice-cover periods within river channels in polar and permafrost regions. These changes will impact the duration of freezing, frozen, thawing and unfrozen periods, and will affect sediment transport fluxes, notably through riverbank erosion. However, at present, it is difficult to quantify the long-term combined impacts of soil moisture dynamics, changing ambient air, water and ground temperatures and the subsequent rates of thawing and freezing on the fluvial bank erosion processes. Herein we present a series of 130 laboratory experiments conducted in a novel cryolab morphology facility using a small-scale Friedkin channel. These cryolab flume experiments aim to assess the influence of flow velocity, soil moisture content and temperature of the sediment on riverbank stability with varying ambient air and water temperatures and flow discharges. The riverbank characteristics in the experiments, including sediment grain size, soil moisture and soil temperature, are based on observations from the sub-artic River Pulmankijoki (Finland) during different seasons. The sediment bank blocks (2 cm high) were prepared for each experiment the day before and kept in the cryolab facility overnight to match ambient air temperatures. The topography was measured before and after each experiment, using an array of images collected via a semi-automatic Canon camera. Surface models were produced with structure from motion and volumetric changes were calculated. GoPro cameras filmed videos of bank evolution to determine higher temporal records of bank edge retreat through the experiments. Buoyant sequins were seeded at the start and end of each experiment in order to calculate the surface flow velocities using a particle tracking velocimetry method. A FLIR A655 infrared thermal camera was used to aid understanding the thermal transfers between the flow and the bank. Results show that the water level had more impact on bank erosion than flow velocities, as at low discharges the full bank height of the channel was less exposed to flow shear. Most critically, the volumetric erosion rate was found to have a non-linear correlation with the air temperature, being highest with an air temperature of 7.0°C (water temperature 7.2°C) and second highest with an air temperature of -2.1°C (water temperature 3.2°C). Conversely the lowest erosion rates occurred at an ambient temperature of -15°C. Erosion occurred as chucks at +1.7 – +3.2°C water temperatures, if the moisture content was high enough, i.e. 18.9% or more, for the sediment block to be frozen. High moisture contents also slowed the heating effect of the flowing water, which propagated through the bank at a lower rate. With the lower soil moisture conditions of 1.1–10.0%, there was not sufficient water within the block to allow it to freeze as a unit. Under such conditions the block acts as loose sediment, and as a consequence water and ambient temperatures have less influence on the erosion rate. These findings have a suite of implications for morphodynamic responses of river channels across defrosting landscapes, which will alter hydrology and sediment fluxes in highly sensitive environments as climate warms into the future.. DOI: 10.5194/egusphere-egu24-10175.

Baar, A, Murphy, B, McLelland, S, Parsons, D (2025) Effect of cohesive sediments on coastal bar morphology under waves and currents , Coastal systems are highly dynamic systems where sand and mud are transported under the complex interactions of bathymetry, currents and waves. A better understanding of the natural dynamics at the scale of individual bars is required for a fundamental understanding of the formation of coastal environments and how they will respond to changes in the future. The current research aims to characterize the relative influence of mud on the morphodynamic change of coastal bars under the combined action of waves and currents. To this end, experiments were conducted in the Total Environment Simulator, a large-scale wave-current flume facility at the University of Hull (6m x 11m, 0.4m deep). The experimental setup consisted of a circular mound of a mixture of sand and clay, placed on top of a flat sand bed in the centre of the flume. The experimental conditions were systematically varied between runs, with 4 different clay percentages of the mound, and 5 different combinations of wave height and current velocity. Flow velocity, water level and bed levels were monitored during each run, providing well-controlled bed development data over time. Preliminary observations of the mound morphology show lateral diffusion due to sediment transport perpendicular to the wave direction under the influence of gravity, and streamwise migration due to sediment transport in the direction of the flow. Increasing the cohesivity altered the relative influence of the waves and currents on the direction of sediment transport and therefore the final shape of the mound. Wave height had a greater control on the morphology with increasing clay content, since higher waves were more effective in winnowing out the clay into suspension and thereby mobilizing the sand fraction. Future analyses will focus on linking the change in direction of sediment transport under combined waves and currents to landscape evolution, to study the larger-scale implications of the observed differences in transport mechanisms.. DOI: 10.5194/egusphere-egu24-15730.

Le Quan, Q, Vasilopoulos, G, Hackney, C, Coulthard, T, Nguyen Nghia, H, Parsons, D (2025) Water Level Lowering and Increased Tidal Influence in the Mekong Delta driven by Human-Induced Riverbed Incision   , River deltas provide ecosystem services that are vital to the world's population, supporting both lives and livelihoods. However, these low-lying areas face heightened vulnerability to the effects of climate change and increasing sea levels; a vulnerability further intensified by local resource exploitation. In recent decades, population growth, urbanization, and economic development have cause a surge in the demand for natural sand and hydropower. Sand mining across lowland rivers and deltas alongside river impoundment in upstream catchments is resulting in the rapid incision of riverbeds. These cumulative impacts, coupled with alterations in input hydrological conditions and rising sea levels at the delta front, have the potential to cause considerable disruptions in the flow hydraulics at the delta scale and alter related water-level dynamics many kilometres from the coastal zone. Despite numerous studies into anthropogenic influence in delta evolution, a significant knowledge gap persists regarding how the combination of stressors that drive river bed lowering influences alterations in water level across lowland rivers and deltas.In this paper, we utilize long-term observation data to examine the relationships between water level and water discharge in the Vietnam Mekong Delta. Assessing these relationships across both spatial and temporal dimensions allows us to determine the effects of riverbed lowering from 1998 to 2018 while identifying the main hydrological and morphological drivers and impacts of these changes. In addition, we employ a 1D hydraulic modelling routine to assess the projected progression of riverbed degradation in the future, and assess the likely impacts of the water level regimes in the entire lower Mekong River and Delta, extending from Kratie to coastal Vietnam. Our results suggest that the delta's historical river bed lowering of approximately 3.06 m from 1998 to 2018 has led to simultaneous declines in mean water levels of approximately 0.65 m and an increase in the mean tidal range by approximately 0.19 m. The reduction in water level is more pronounced in the landward direction, whereas the increased tidal range is more prominent in the seaward direction. Under anticipated future scenarios, where the riverbed lowering is projected to average around 5.92 m compared to the conditions in 1998, there could be declines in mean water level of approximately 1.27 m, while, the maximum water level reduction upstream may reach 3.73 m. Simultaneously, the mean tidal range is expected to increase by approximately 0.46 m, with the maximum rise potentially reaching more than 1 m in the downstream delta region.There are very significant implications of these trends which include a potential reduction in the level of flooding in landward parts of the delta but very significant consequences associated with tidal flood hazard seaward, as well as associated impacts such as the disconnection of channels from floodplains, decreased efficiency of infrastructure and irrigation works, an elevated risk of storm surge hazards, as well as the increased likelihood of water salinization.. DOI: 10.5194/egusphere-egu24-1296.

Simmons, S, Trenholm, N, Parsons, D (2025) Imaging suspended sediment plumes in Greenland’s fjords using a multi-frequency multibeam echo-sounder and an acoustic Doppler current profiler, Sediment delivery to Greenland’s glacial fjords is expected to increase significantly in response to accelerated atmospheric and oceanic warming. As glaciers retreat on to land, melt-water will enter the fjords at the water surface rather than rising as buoyant plumes from the base of the calving front, thus reducing mixing with the nutrient-rich waters below. Increased surface sediment concentrations will prevent light penetration which, together with decreased nutrient availability, will cause a reduction in primary production and ultimately effect rates of seafloor carbon burial. Glacial fjords are a major global carbon sink, but it remains unclear how sediment delivery and transport processes in glacial fjords will change as deglaciation progresses. We present water column data acquired with an Acoustic Doppler Current Profiler (ADCP) and a multi-frequency Sonic 2026 multibeam echo-sounder deployed on a vessel in a Greenland fjord with a land-retreated glacier and a fjord with a recently-retreated glacier. The results demonstrate the capability of the multibeam echo-sounder to image suspended sediment plumes in the water column, which we compare with backscatter acquired with the ADCP. The water column imaging demonstrates how mixing processes between the freshwater plumes and tidally-driven oceanic saltwater causes sediment plumes to form near-bed concentrations of fluid mud that align with seafloor channels observed in the bathymetry data acquired with the Sonic 2026, providing new insights into sediment transport processes in fjords at different stages of deglaciation.. DOI: 10.5194/egusphere-egu24-7926.

Ockelford, A, Wu, X, Parsons, D (2025) Controls on microplastic breakdown due to abrasion in gravel bed rivers, Microplastic contamination of river sediments has been found to be pervasive at the global scale however, the physical controls governing the storage, remobilization and pathways of transfer in fluvial sediments remain largely unknown. The properties that make plastics useful - strength, flexibility, durability and resistance to degradation - also make their transport through the environment difficult to predict. Specifically, the risk profile associated with microplastic transfer is dynamic because their physical and chemical properties change over time as they persist in, or move through, the environment. For example, mechanical breakdown, due to abrasion, likely decreases the size of microplastic particles, increases their surface roughness and surface area to volume ratio, and influences the diversity and abundance of the microbial taxa that colonise them. However, the processes controlling the mechanical breakdown of plastic particles rivers by abrasion is poorly understood, particularly in gravel bed rivers where there are a range of grain sizes present with the bed sediment. Here we report a series of experiments designed to explicitly quantify the influence of sediment grain size on microplastic degradation and understand how this varies by microplastic type.Four sediment beds (i) 0.8mm uniform sand; (ii)10mm uniform gravel; (iii) 20mm uniform gravel and (iv) bimodal sand gravel mix D50 14mm) were seeded with either Nylon pellets (d= 1.2 g/cm3), Polycarbonate fragments (d=1.2 g/cm3) or Nylon fibres (d = 1.15g/cm3) at 0.005% concentration by mass. The sediment and plastic were placed into a cement mixer with 20L of water and tumbled for 100 hours. During each experiment, the cement mixer was periodically stopped and a sample removed to assess microplastic abrasion.Results indicate that fibres are abraded to the greatest degree in comparison to beads and fragments.  Results also indicate a clear relationship with sediment size where microplastic fragmentation rates increase with river sediment grain size. In all plastic types surface complexity increases with time which has implications for the ability of the plastics to potentially host microbial taxa.   . DOI: 10.5194/egusphere-egu24-9356.

Wolstenholme, JM, Skinner, CJ, Milan, DJ, Thomas, RE, Parsons, DR (2024) Supplementary material to "Localised geomorphic response to channel-spanning leaky wooden dams". DOI: 10.5194/egusphere-2024-3001-supplement.

Houseago, R, Mendrik, F, Hackney, C, Parsons, D (2023) Transport and trapping of microplastics in coral reefs: a physical experimental investigation, Biodiverse coastal ecosystems are vulnerable to microplastic (<5 mm) pollution due to inputs from riverine and shoreline sources which pose ecological threats and have repercussions for social ecosystem services. These ecosystems may contain an aquatic canopy covering the bed, such as seagrass meadows or coral reefs that can trap particles. Despite field measurements revealing the accumulation of plastic debris in a variety of aquatic canopies, the transport and dispositional processes that drive microplastic trapping within such canopies is barely understood. Here, we investigate for the first time the prevalence of biofilmed microplastic retention by sparse and dense branching coral canopies in a hydraulic flume under unidirectional flow. Corals were replicated through 3D-printing using a scan of a staghorn coral Acropora genus, a branching coral that encompasses one-fifth of extant reef-building corals, globally.Trapping mechanisms by coral canopies were identified, and include: a) interception of particles with the coral acting as a barrier and microplastics and settling to the bed; b) settling of microplastics on the branches or within the structure of the coral and c) accumulation in the downstream region of individual corals. Trapping efficiency was found to depend on bulk velocity and canopy density, with up to 99% of microplastics retained across the duration of the experiments. Surprisingly, sparse reefs may be as vulnerable to microplastic trapping and contamination as denser canopies under certain flow velocities, with the latter found to retain only up to 18% more microplastics than in sparser conditions. Flow velocity profiles provide insights into the relationships between canopy hydrodynamics and microplastic trapping and distribution. The results indicate coral reefs may form areas of accumulation for microplastic pollution through their observed high trapping efficiency that may otherwise have been transported greater distances.. DOI: 10.5194/egusphere-egu23-14119.

Delorme, P, McLelland, S, Murphy, B, Parsons, D (2023) Experimental evidences of the influence of flood magnitude and duration on the morphological evolution of a river: Initial results from the EVOFLOOD project, There is now a clear consensus that climate change will lead to an increase in the frequency and intensity of extreme rainfall events in many parts of the world, which, in turn, will lead to increased flood flows and thus flooding of large areas. Numerical simulation is one way to improve our understanding of flooding processes, especially through Global Flood Modelling (GFM). Current GFMs represent the morphology of river channels and floodplains in a very simplified way. In particular, GFM assumes that the channel morphology remains unchanged over time. However, rivers are dynamic, their morphology evolves by erosion and deposition of sediments carried by the flow. These morphological changes can radically alter the conveyance capacity of the channel and therefore the flood risk. Integrate these morphological changes in the new GFM framework is one of the main objectives of the NERC-funded EVOFLOOD project.&#160;Here we present the results of the experimental part of the project. We designed a controlled laboratory experiment to identify the factors controlling the morphodynamic response within river channel. In this experiment, we generate a succession of flood events characterised by different magnitudes and durations, and we quantify the evolution of the flooded area and channel width as a function of the duration, intensity and flood history.&#160;We find that the main parameters controlling morphological changes are flood intensity and flood history. The duration of the flood does not have a significant impact on the morphological changes because the main changes occur during the first period of the flood event. Finally, we show the importance of the upstream sediment discharge on the modification of the conveyance capacity.&#160;. DOI: 10.5194/egusphere-egu23-14185.

Darbari, V, Christopher, H, Grigorios, V, Rodney, F, Dan, P (2023) Mapping Cambodian Wetlands with Satellite Imagery and Google Earth Engine’s Machine Learning Algorithm, The wetlands and lakes that make up more than 30% of Cambodia's terrain are home to a diverse range of resources and biodiversity. More than 46% of the population lives and works in these wetlands while 80% of the local population relies on their vital resources for sustenance such as fish, food, water and vegetables. This makes Cambodia one of the nations with the highest reliance on wetland and lake ecosystems in the world. On-going development in the region has boosted the rates of &#160;urbanization. Urban expansion has deteriorated wetland ecosystems through land reclamation and infilling projects as well as hydrological and sediment cycle disruptions. It has also increased the demand for mined sand from the Mekong River. Mapping and monitoring the extent and distribution of wetland ecosystems in order to quantify the impact of human activities on these vital areas is critical for maintaining the ecological balance and promoting the sustainable development of an extensively eco-service dependent country such as Cambodia. In this study we combine spaceborne multispectral and radar remote sensing datasets with machine learning classification models and algorithms within the Google Earth Engine to monitor the changes observed in Cambodian wetlands through time. Our classifier is trained by comparing Sentinel 1 Synthetic Aperture Radar data to corresponding multispectral images captured from Landsat. We then use the classifier to monitor wetland extent through time from 1989 to present using merged Landsat 5 and 8 databases. With our maps and areal statistics, we identify the spatio-temporal trends and changes in wetland cover linked to climatic patterns and local anthropogenic influence connected to sand mining from the Mekong River and land infilling. In the last 15 years, about half the country&#8217;s wetlands have disappeared, with 15 out of 25 lakes near the capital completely infilled with sand that can be clearly observed with analysis of satellite data.. DOI: 10.5194/egusphere-egu23-6520.

Mendrik, F, Hackney, C, Cumming, V, Hung, N, Hennige, S, Parsons, D (2023) Paradise lost: Microplastic pollution on a remote coral island, Vietnam, Despite microplastic pollution now being ubiquitous in natural environments, there remains several unknowns in terms of which zones may act as microplastics sinks. Coral reefs are the most ecologically diverse marine ecosystem, supporting 25% of all ocean species, and have high socio-economic value, offering ecosystem services such as coastal protection and tourism. However, the average cover of tropical reefs has declined by 50-75% in nearly all global regions over the last 30-40 years due to a range of anthropogenic stressors. There is growing evidence that coral reefs can entrap plastics and that microplastic (>5 mm) pollution threatens coral physiology. However, there is a lack of understanding as to the occurrence, accumulation, spatial distribution and impacts of microplastic pollution on coral ecosystems. It is, therefore, necessary that more research is undertaken within coral reefs to understand microplastic contamination levels and ensure effective mitigation measures are in place.The islands of Con Dao, Vietnam, are 90 km from the Mekong Delta coast and are a designated national park, with a 14,000 ha marine protected area that conserves endangered wildlife and a diverse range of coral that support hundreds of fish species. Although considered pristine, Con Dao it is influenced by the Mekong River, which is one of the top contributors to marine plastic waste worldwide, posing an increasing risk to this biodiversity hotspot. Understanding the volumes and impacts of microplastic pollution in this area will allow insight into the levels of exposure and risk coral reefs in Southeast Asia, including the highly biodiverse Coral Triangle, have from increasing plastic pollution.Here, the occurrence and spatial distribution of microplastics in water and sand samples from Con Dao is presented. Reef health is also provided through photogrammetry whereby 3D reconstruction of reef sites allows analysis of coral cover and diversity, in addition to structural complexity, which is strongly correlated to reef health indicators including biodiversity, especially within tropical reef ecosystems. Potential sources of microplastics are also discussed through polymer identification by FT-IR analysis.. DOI: 10.5194/egusphere-egu23-14286.

Lotsari, E, de Vet, M, Murphy, B, McLelland, S, Baar, A, Fernandez, R, Parsons, D (2023) Small scale bank erosion experiments in freezing and thawing conditions, Climatic warming is projected to affect hydrology and change ice-cover periods within river channels, particularly in northern high-latitude regions. These changes will impact sediment transport conditions and longer-term riverine morphology. For example, the duration of the freezing, frozen, thawing and unfrozen periods, may affect river bank erodibility characteristics. However, it is difficult to quantify the combined impact of soil moisture, rates of freezing/thawing, and ambient temperatures on the fluvial bank erosion in addition to altered flow velocity conditions in natural river sites. We therefore present a series of scaled laboratory experiments in a controlled small-scale novel cryolab morphology facility. The flume experiments allow for detection of how these different forcing factors affect riverbank erosion rates. The ultimate goal of the experimental programme is to enhance the process understanding of the sediment transport behaviors in expected future conditions in sub-arctic environments, where the frozen periods are expected to shorten and air temperatures to rise due to climatic change.&#160;The experiments presented in this study aimed to detect how the flow velocity, soil moisture content and freezing levels of the bank sediment, affect river bank stability with altered ambient air temperatures. The laboratory experiments were performed using a small-scale Friedkin channel (1945) within a chilled flume system. A suite of experiments were conducted adjusting the ambient air temperature, the water temperature, and the water discharge (flow velocity). As the basis for creating realistic bank characteristics for the experiments, the sediment size, soil moisture and soil temperature parameter values observed in a sub-arctic Pulmanki River during mid-winter, after ice-breakup/before snow-flood peak and non-frozen conditions were used across the experimental set. The sediment bank blocks (2 cm high) were prepared for each of the experimental runs the day before, and kept in the chilled flume room overnight to match ambient temperatures prior to the runs being advanced.&#160;Overall ~130 experiments were performed. From each of the experiments the topography was measured before and after the experiment, by taking photos with a semi-automatic Canon camera. Structure from motion methodologies were used to produce surface models, and volumetric change was thus possible to calculate for each experiment. GoPro cameras (HeroBlack 10) were used to film videos of the bank evolution positioned from both nadir and sideways positions, providing linked high-resolution views of the evolving bank morphology. The data was used to detect the bank edge retreat through time. To assess changes in flow structure, buoyant micro-beads were seeded at the beginning and at the end of each experiment, allowing particle tracking velocimetry method to recover and defining the flow velocities of each experiment. Finally, a FLIR A655 thermal camera was used to aid understanding on the thermal transfers between the flow and the banks and the impact this had on morphodynamics.&#160;The preliminary results related to the possible links between temperature, moisture, flow velocity and resultant morphodynamics will be presented and the implications for climate change impacts on defrosting landscapes will be discussed.&#160;. DOI: 10.5194/egusphere-egu23-2759.

Teasdale, SL, Hackney, CR, Milan, DJ, Bennett, GL, Parsons, DR (2022) Capturing the Role of Soil Moisture in Driving Soft Cliff Erosion Through Terrestrial Laser Scan (TLS) Return Intensity Data, &lt;p&gt;Characterisation of cliff retreat, especially in soft &amp;#8216;rocks&amp;#8217; is considered highly problematic and complex where rates of lateral retreat can vary between 1 ma&lt;sup&gt;-1 &lt;/sup&gt;and &gt; 10 ma&lt;sup&gt;-1&lt;/sup&gt;. Limited historical observations, and temporally and spatially variable retreat often mean that the fundamental relationships driving erosion e.g. rainfall intensity, rainfall frequency and localised storm events, are overlooked. Providing the basis for empirical modelling under projected climate change, measurement has traditionally relied upon the use of ground survey, historical maps and aerial photographs. Although these techniques offer insight into cliff top position and shoreline change over extended timescales, they are inappropriately placed to capture short-term, focused rates of change.&lt;/p&gt;&lt;p&gt;Here, we quantify failure across the cliff face with localised volumetric change and spatially distributed surface moisture patterns determined from the return intensity measured by a terrestrial laser scanner (TLS). We conducted repeat TLS surveys at a 200 m site of cliff over a 12 month survey period along the Holderness coastline, UK. We demonstrate how TLS can be used to quantity variations in material grain-size and surface moisture (where TLS return intensity is calibrated to in-situ soil moisture measurements), which in turn, can be used to associate active vs stable areas on the cliff face. This work is aimed at exploring the relationship between surface moisture content and grain size as indicators of stability in coastal cliffs.&amp;#160; It is expected that the outcome of this study will have important implications for the understanding, and future modelling of coastal erosion under predicted climate variability.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;. DOI: 10.5194/icg2022-475.

Fernández, R, Kassem, H, Wu, X, Parsons, D (2022) Modultaion of sediment transport rates and hydraulic resistance by increasing mud-to-sand ratios, &lt;p&gt;&lt;span&gt;Biologically-mediated muds and sand-mud sediment mixtures are prevalent in lowland rivers, coastal, marine, and estuarine environments. These systems are highly sensitive to ongoing sea-level rise and environmental change. Effective management of these environments and adaptation to future changes, including mitigation to flood risk, requires accurate prediction of&amp;#160;&lt;/span&gt;&lt;span&gt;how&lt;/span&gt;&lt;span&gt;&amp;#160;&lt;span&gt;flow and bed morphology&lt;/span&gt;&amp;#160;&lt;span&gt;changes over time&lt;/span&gt;&lt;span&gt;, which has recently been shown to&lt;/span&gt;&amp;#160;&lt;span&gt;strongly&lt;/span&gt;&lt;span&gt;&amp;#160;depend upon substrate composition and the mud-to-sand ratios. &amp;#160;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span&gt;Mud is cohesive and helps stick granular sediment together, potentially reducing sediment transport rates and bedform growth, which impacts hydraulic resistance and thus the fluid flow. We examined the co-evolution of bedform growth (morphodynamics) and hydraulic resistance (hydrodynamics) in muddy, shallow coastal environments subject to the simultaneous action of waves and currents (combined-flow) through controlled physical experiments in the Total Environment Simulator at the University of Hull.&amp;#160;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span&gt;We conducted experiments with combined flow (regular waves plus a steady current in 0.4 m water depth) over 1.5 m wide channels constructed within the experiment basin (11 m long). The channels were each filled with a homogeneous sediment mixture of kaolin clay (D&lt;sub&gt;50&lt;/sub&gt;&amp;#160;= 8 microns) and medium sand (D&lt;sub&gt;50&lt;/sub&gt;&amp;#160;= 390 microns) in mud-to-sand ratios ranging between 0% (clean sand, baseline) and 16% by mass, to a substrate depth of 0.10 m. We ran the experiments to equilibrium conditions whereby steady-state bedform dimensions were approached with respect to the flow&lt;/span&gt;&lt;span&gt;&amp;#160;conditions&lt;/span&gt;&lt;span&gt;. As such, longer experimental run-times were required for beds with higher mud-to-sand ratios. We quantified bedform formation and evolution, and flow velocities with a suite of acoustic sensors. With the 3D flow velocity data, we quantified turbulent fluctuations to assess the flow dynamics and estimate shear characteristics of the flow. We used these data to quantify hydraulic resistance. &amp;#160;&lt;/span&gt;&lt;/p&gt;&lt;p&gt;&lt;span&gt;Our results show that there is a mud-content threshold of approximately 8-11% (depends on hydrodynamic conditions) below which clean sand ripples form once the&amp;#160;&lt;/span&gt;&lt;span&gt;finer&amp;#160;&lt;/span&gt;&lt;span&gt;sediment is winnowed out, leading to similar ripple heights as those measured for clean sand conditions at equilibrium. This in turns results in comparable hydraulic resistance (friction) to the low mud or sand-only substrates. However, increasing clay content suppresses bedform dimensions (shorter and smaller ripples), and thus reduces hydraulic resistance. Above the mud-content threshold, ripples are inhibited and sand transport rates are insignificant, resulting in minimal form drag and subdued skin friction. Our results suggest that hydraulic resistance predictors for muddy-, shallow-coastal environments need to account for the presence of mud and its modulating effects in sediment transport and friction, which ultimately affects flow properties and associated flood risks.&amp;#160;&lt;/span&gt;&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-3919.

Le Quan, Q, Vasilopoulos, G, Hackney, C, Parsons, D, Nguyen Nghia, H, Darby, S, Houseago, R (2022) Sediment routing though the apex of a mega-delta under future anthropogenic impacts and climate change&#160;, &lt;p&gt;Deltas are home to 4.5% of the global population and support a range of ecosystem services that are vital to lives and livelihoods. As low-lying regions, deltas are also amongst the most vulnerable areas to the threat climate change and relative sea-level rise, which are being exacerbated by ongoing local resource exploitation. Anthropogenic activities such as riverine sand mining, construction of flood embankments, deforestation and changes of land use and hydropower dams are disrupting the natural evolution of deltaic systems, with many of the world&amp;#8217;s large deltas now being sediment starved. This is important because changes of the sediment flux into large deltas can have implications for the evolution of the morphology of delta bifurcations and their function at routing water and sediment seaward. This can amplify flood hazard and risk for riparian communities and intensify processes such as bank erosion, presenting hazards to human lives and exacerbating land loss. The present study focuses on the Chaktomuk junction at the apex of the Mekong delta, connecting the Mekong with the Tonle Sap Lake and the downstream delta. The junction is important as it provides the connection between the Mekong and the largest freshwater lake in Southeast Asia and because of the proximity of the junction to the rapidly expanding urban centre of Phnom Penh. We present a combined 2D hydrodynamic and sediment transport model for the Chaktomuk junction, constructed and based on high-resolution bathymetric data obtained with multibeam echosounders. A series of established sediment transport equations are adopted and tested through a sensitivity analysis to identify the most appropriate sediment transport solver for the model, which is then validated against field observations. The model was forced with a series of scenario combinations including changes of water and sediment flux and rates of sand mining. Simulation runs are presented that project the future evolution of the apex of the Mekong delta, including changes in bifurcation morphology, water and sediment routing seaward through delta distributary channels and changes in water and sediment exchanges between the Mekong and the Tonle Sap. The implications of these future trajectories will be discussed in terms of the sustainability of the delta to future change.&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-9871.

Russell, C, Fernández, R, Parsons, D, Gabbott, S (2022) Plastic pollution impacts riverbed sand transport processes, &lt;p&gt;Rivers are the primary link between terrestrial and ocean environments, crosscutting the landscape whilst providing fresh water, nutrients, and sediment to diverse ecosystems. However, over the past 50 years, rivers have become increasingly significant vectors for plastic pollution. On a riverbed, sediment migrates downstream as bedforms, such as dunes, via well-understood morphodynamic processes, yet the impact of plastic on sediment transport behaviours is unknown and so has been widely assumed as passive, whereby the sediment buries plastic between flood events and is otherwise unaffected. Here we find, through undertaking studies using an experimental recirculating flume tank, that when plastic particles are introduced to riverbed sand dunes, even at relatively low concentrations, novel morphologies and altered morphodynamic processes emerge, including irregular stoss-side erosion and dune wash out. We detail new mechanisms of plastic sequestration and transport to outline how plastic particles interacting with riverbed dunes fundamentally influence sediment transport processes, and the resulting deposits. We find that: i) plastic is not a passive component on riverbeds as it significantly speeds up morphological transformations, affecting bed topography and increasing dune erosion rates, which at present has unknown consequences for the wider landscape; ii) plastic inclusion locally changes the ratio of suspended load to bedload material as plastics create a local and temporal shift towards more sediment in suspension, thereby causing the river to develop more conduit-like than storage-like properties with unknown consequences for overall sediment transport fluxes and increased local turbidity; and iii) inclusion of plastic in the sediment layer creates heterogeneous deposits that propagates the disruption of sedimentary processes and forms irregular distribution of plastic on the riverbed that will affect the possibilities of representative sampling. Such insights shed light onto a new branch of environmental consequences of plastic in the environment that requires further research, as a new branch of sedimentology: plastic and sediment interactions. With plastic being continually added to our environments globally, this new field is set to be increasingly relevant amongst emerging challenges of the Anthropocene.&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-12734.

Johnson, J, Parsons, D, Hackney, C, Coulthard, T, Best, J, Edmonds, D (2022) The effect of sediment qualities on the resistance of deltas to anthropogenic pressures, &lt;p&gt;Many global deltas are heavily populated and ecologically important landforms that exist due to a balance between basin sediment supply, relative sea-level rise and coastal erosion. This balance is being increasingly disrupted by anthropogenic activities, through sediment impoundment behind dams, riverine sediment mining, accelerating eustatic sea-level rise and enhanced delta subsidence through groundwater and oil and gas extraction.&lt;/p&gt;&lt;p&gt;This study utilizes a morphodynamic model, Delft3D, to examine how a range of sedimentological boundary conditions can influence the response of deltas to combined pressures of sediment supply reductions and differing rates of relative sea-level rise. A group of baseline scenarios were created by running the model with a range of different fluvial sediment cohesivities, where the proportions of incoming river sediment defined in the model as cohesive was varied systematically . In addition, a second suite of baseline models were developed where the receiving basin substrate type, over which the deltas evolved and prograded, was varied in terms of its cohesive sediment content and threshold bed shear stress required for erosion. Across these two baseline series of simulations, the prograding deltas were then exposed to a suite of relative sea-level rise scenarios and a set of runs with reductions in fluvial sediment supply. A baseline control scenario was also run in which sediment supply and relative sea-level were kept constant.&lt;/p&gt;&lt;p&gt;The resulting deltas were analysed using channel identification algorithms that quantified the channel geometries and morphodynamics through time. The resultant morphologies and rates of morphological evolution were quantified for each run and scenario. In all cases, sediment starvation was found to be a more significant driver of morphodynamic change than sea-level rise, with reduced deltaic land area and channel mobility resulting from reductions in sediment supply. Deltas forming over more resistant receiving basin substrates, analogous to consolidated clays or glacial till, were found to be more vulnerable to changes in sediment supply than those forming over less resistant substrates. The implications of these findings for both managing deltas and understanding delta deposits in the rock record will be outlined and discussed.&amp;#160;&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-9984.

Teasdale, SL, Hackney, CR, Milan, DJ, Bennett, GL, Parsons, DR (2022) Insidious Retreat of the Holderness Coastline: Capturing Spatial and Temporal Patterns of Failure using Terrestrial Laser Scanning (TLS)&#160;, &lt;p&gt;The Holderness coastline of Eastern England is the fastest eroding coastline in Europe. The coast is characterised by &amp;#8216;soft sediment&amp;#8217; tills, which make it distinctly susceptible to cliff retreat, in turn, these pose a socio-economic threat to local communities. The controls and future projections of the rates and patterns of retreat rely upon robust monitoring and process-based understanding of the geomorphological processes. Herein, we report on a 12-month monitoring study (June 2019 to May 2020) along a 220 m stretch of the Holderness coastline (Withernsea), whereby the spatial and temporal patterns of failure were captured using terrestrial LiDAR. Failure footprint, volumetric change and total eroded volume of the cliffs were estimated and compared against local hydrodynamic and meteorological records. The results reveal that &gt;36% of individual failure events occurred solely in the upper portions (upper 75% vertical height) of the cliff, with a further &gt;38% over the central section of the cliff face, with &lt;26% occurring solely at the cliff toe (lower 25% cliff height). These findings disprove the widely accepted assumption that failure is primarily driven by wave attack, and we instead propose that instability in soft cliffs occurs as a result of moisture-driven &amp;#8216;structural weakening&amp;#8217; with the influence of wave action primarily acting to remove failed material.&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-10759.

Buckingham, J, Waller, C, Manno, C, Waluda, C, Parsons, D (2022) Microplastic in the marine nearshore waters of South Georgia: a source to sink approach&#160;, &lt;p&gt;The polar plastics research community have recommended the spatial coverage of microplastic investigations in Antarctica and the Southern Ocean be increased, and that focus is given to areas with likely microplastic and zooplankton presence and overlap, such as South Georgia. Presented here is a baseline estimate of microplastics in the nearshore, marine waters of South Georgia, the first systematic study of the north-east coast of the island. We estimate the mean concentration of microplastics in seawater to be 2.39 &amp;#177; 3.58/L (&amp;#177; SD), approximately one order of magnitude higher than the majority of other studies of sea surface waters south of the Polar Front. The maximum concentration of microplastics in wastewater from King Edward Point research station was 1.44 &amp;#177; 4.93/L (mean &amp;#177; SD). Following FT-IR polymer analysis and categorisation of microplastics solely by material, multivariate analysis revealed a 22% similarity in the microplastic profiles of wastewater and the seawater it enters. We hypothesise that microplastic pollution from the research base constitutes a fraction of the input into the local marine environment. To explain the observed discrepancy, we hypothesise alternative sources of contamination to be microplastic transported from afar, microplastic from ships (estimated to be up to 36.8 million synthetic fibres per year) and precipitation based on the concentration of microplastic in a single snow sample (15.89 &amp;#177; 23.72/L, mean &amp;#177; SD). There was no significant difference in the microplastic concentration between seawater sites, and no significant bilateral relationship between concentration and distance from the research station outlet, however we recommend further finescale mapping of the nearshore hydrological regime to develop a holistic picture of microplastic dispersal and retention at the coast.&amp;#160;&lt;/p&gt;&lt;p&gt;South Georgia is a biodiversity hotspot to which the potential hazard of microplastic pollution is relatively unknown. This research is part of a wider project examining the ecological fate of microplastics in the marine nearshore waters of South Georgia using a source to sink approach. Additional research currently producing preliminary results includes determining the level of microplastic ingestion by keystone plankton and economically important fish species, as well as assessing the potential for trophic transfer of microplastics to higher predators in the region.&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-9416.

Parsons, KJ, Lloyd Williams, A, Skinner, C, Parsons, DR (2022) Immersive storytelling and the power of using 360 to amplify the experiences, agency and action of children and young people facing flood risk, &lt;p&gt;Flood hazard is projected to at least double by 2050 as a consequence of the impacts of climate change, meaning many more societies and communities will need to be able to mitigate and adapt to the resultant increase in flood risk.&lt;/p&gt;&lt;p&gt;One often overlooked aspect of flooding is the experiences of children and young people who also deal with disasters first-hand and who often have a very different viewpoint than adults. &amp;#160;In 2014 researchers (Lloyd Williams et al, 2017) worked with flood-affected children, using creative and participatory methodologies to explore their experiences and tell their story. The research gave the young people the opportunity to express their voice on this issue and take action, including the production of Children&amp;#8217;s Flood Manifestos that called for changes in UK flood management. A key feature of these manifestos was the call for all children to receive flood education as part of the school curriculum.&lt;/p&gt;&lt;p&gt;The research reported herein takes up that call by seeking new and innovative ways to engage young people with flood education. As part of the work, the children&amp;#8217;s flood stories have been brought to life through the use of immersive storytelling and 360 technologies. In the &lt;em&gt;Help Callum&lt;/em&gt; and &lt;em&gt;Help S&lt;/em&gt;ali immersive videos, generated via the project, the viewer gets to experience the children&amp;#8217;s stories first-hand and develop an understanding of some of the issues that young people face during flood events. As part of the immersive journey the viewer is asked to think about what would have helped the children and how we could all be better prepared for flooding. To complement these films, we have co-created a suite of learning resources with teachers, young people and England&amp;#8217;s Environment Agency, including links to the National Curriculum and the Sustainable Development Goals, exploring how the videos can be used to communicate and contribute to better understanding, and subsequent action, in response to flood risk among a new generation of young people.&lt;/p&gt;&lt;p&gt;The paper will show you how it is possible to not only communicate your science but also demonstrate how working with young people can help to build agency, self-esteem and be a means to taking meaningful action.&lt;/p&gt;&lt;p&gt;Lloyd Williams, A, Bingley, A, Walker, M, Mort, M. and Howells, V, 2017. &amp;#8220;That&amp;#8217;s Where I First Saw the Water&amp;#8221;: Mobilizing Children&amp;#8217;s Voices in UK Flood Risk Management. &lt;em&gt;Transfers&lt;/em&gt;,&amp;#160;&lt;em&gt;7&lt;/em&gt;(3), pp.76-93.&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-1529.

Parsons, K, Jones, L, Halstead, F, Le, H, Vo, TT, Hackney, CR, Parsons, D (2022) 2020 Vision: Using transdisciplinary approaches in understanding climate (in)action through youth led participation in mitigating hydrological extremes, We are the midst of a climate emergency requiring urgent climate action that is, as yet, unforthcoming both on the scale, and at the speed, commensurate with the associated hazard and risk. This paper presents work that considers this current state of inaction and explores how we might understand the underpinning processes of attitudinal and behavioural change needed through the emotional framework of loss.This inaction is also explored through the additional lens of the year 2020, a year of tumultuous social change created by the COVID–19 pandemic. The article draws parallels with and looks to learn from the ways in which the collective loss experienced as a result of COVID–19 may offer a sense of hope in the fight to adequately address climate change but how meeting the Sustainable Development Goals will require climate injustices to also be addressed. We argue that appropriate leadership that guides widespread climate action from all is best sought from those groups already facing the loss of climate change and therefore already engaged in climate-related social action and activism, including youth and Indigenous peoples.In this regard we present work from an ongoing project based within the Red River catchment (Vietnam), which is already experiencing enhanced hydrological extremes. Resultant floods, landslides and soil erosion in the upper region is having impacts in communities, whilst relative sea-level rises in the region are affecting the frequency and magnitude of flooding. Our research is working with young people and their communities, alongside social and environmental scientists in partnership, to identify imaginative ways to mitigate these climate change challenges and foster action. The paper will outline how this youth-led approach explores how local, traditional, and indigenous knowledges can develop understandings and strengthen local and societal resilience, incorporating peer-to-peer, intergenerational and cross-/inter-cultural forms of collaborative, and socially just, learning. DOI: 10.5194/egusphere-egu22-3568.

Mendrik, F, Houseago, R, Waller, C, Hackney, C, Parsons, D (2022) Transport and trapping in complex aquatic canopies: how do coral reefs act as sinks for microplastics?, &lt;p&gt;The &amp;#8220;missing plastic&amp;#8221; phenomenon remains, whereby the transport and ultimate fate of microplastics in aquatic environments is mostly unknown. Marine plastic pollution mainly originates from terrestrial sources and upon reaching coastal zones interacts with nearshore ecosystems. Coral reefs in coastal areas are likely exposed to microplastics, especially shallow reefs at low tides, yet the interactions between microplastics and corals are largely unexplored. Reefs can form extremely complex canopies that can trap sediment, and likely act as a sink for microplastic pollution through serval ways: acting as a physical barrier, modifying turbulence and depositional processes, or through incorporation within coral tissue and skeletons. Given reefs form the foundation of highly biodiverse ecosystems, the entrapment of microplastics by coral would possibly increase ingestion by, and physiological damage to, corals and other reef organisms. The broader ecological impact may be considerable, as well as the repercussions for associated ecosystems services for hundreds of millions of people. Furthermore,&amp;#160;the impacts of&amp;#160;climate change and rising sea temperatures&amp;#160;may be accentuated. Despite the growing concern of these consequences and field measurements revealing accumulation in a variety of aquatic canopies, the transport and dispositional processes that drive microplastic trapping in coral canopies is barely understood.&lt;/p&gt;&lt;p&gt;Here, we investigated for the first time the prevalence of microplastic retention by branching coral canopies in a hydraulic flume under several unidirectional flow conditions. Coral colonies were created using 3D-printed models of staghorn coral, &lt;em&gt;Acropora genus, &lt;/em&gt;an important reef building species found globally. A set weight of microplastics (biofilmed ground melamine, density 1.6 g/cm&amp;#179;) was released into canopies that represented recovering and healthy reefs to determine entrapment efficiency. Overhead and side cameras tracked microplastic distribution and trapping mechanisms. Furthermore, complimentary flow velocity profiles were acquired to understand the relationships between the canopy hydrodynamics and microplastic distribution. Our results provide an insight into microplastic transport dynamics and entrapment mechanisms within coral canopies. Results show that even sparse reefs may be vulnerable to notable microplastic trapping. The results provide insight that support the conjecture that canopies may act as a global sink for microplastic pollution. Further investigation is required in the exposure of these ecosystems to microplastics and impacts on the wider ecological system health, function, and potential subsequent transfer through food webs.&lt;/p&gt;. DOI: 10.5194/egusphere-egu22-4646.

Hackney, C, Vasilopoulos, G, Heng, S, Darbari, V, Walker, S, Parsons, D (2021) Supplementary material to "Sand mining far outpaces natural supply in a large alluvial river". DOI: 10.5194/esurf-2021-39-supplement.

Baronas, JJ, Tipper, E, Bickle, M, Hilton, R, Parsons, D, Stevenson, E, Larkin, C, Hackney, C (2019) Suspended Sediment Composition of the Irrawaddy and Salween Rivers: Grain-size Dependence and Spatiotemporal Variations. DOI: 10.1002/essoar.10500713.1.

Marra, WA, McLelland, SJ, Parsons, DR, Murphy, BJ, Hauber, E, Kleinhans, MG (2015) Supplementary material to "Groundwater seepage landscapes from local or distal sources in experiments and on Mars". DOI: 10.5194/esurfd-3-129-2015-supplement.

University, L, De Montfort University, Leicester, TUO, Williamson, L, Parsons, D, Hahnel, M, Gunn, S, Cole, G (Accepted for publication) Open Research Week 2024: Monday, 26 February, Introduction, Opening address / Prof Dan Parsons, Pro Vice-Chancellor for Research and Innovation, Loughborough UniversityDan Parsons obtained his PhD at the University of Sheffield in 2004 and has been an academic in Earth Sciences at the Universities of Leeds, Illinois at Urbana-Champaign and Hull. He was the founding and inaugural Director of a University-wide Energy and Environment Institute (EEI) in 2017. The Institute grew under his leadership, bringing together a multidisciplinary team of more than 180 researchers to conduct impactful research on the global challenges presented by environmental change. Professor Parsons joined Loughborough University in September 2022 as the Pro Vic-Chancellor for Research and Innovation.Global academic publishing: where will experimentation lead? / Mark Hahnel, VP of Open Research at Digital Science, Founder of FigshareMark Hahnel is the VP Open Research at Digital Science. He is the founder of Figshare, which he created whilst completing his PhD in stem cell biology at Imperial College London. Figshare currently provides research data infrastructure for institutions, publishers and funders globally. He is passionate about open science and the potential it has to revolutionize the research community. Building a grassroots community: the role of a URKN local network lead / Dr Sarah Gunn, Lecturer in Clinical Psychology, local UKRN network lead, University of LeicesterSarah is a clinical psychologist and lecturer in clinical psychology at the University of Leicester. She has been the local network lead for a little under two years, and she’s enjoying working with UKRN and with the UoL team to promote open research as a grassroots lead. Her research interests are clinically-orientated, which brings up specific challenges around supporting people to do open, robust research in clinical populations and settings. .