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dc.contributor.authorDowns, Peter
dc.contributor.authorSoar, PJ
dc.date.accessioned2018-10-24T07:28:00Z
dc.date.available2018-10-24T07:28:00Z
dc.date.issued2018-09-05
dc.identifier.issn2555-0403
dc.identifier.issn2267-1242
dc.identifier.urihttp://hdl.handle.net/10026.1/12594
dc.description.abstract

© The Authors, published by EDP Sciences, 2018. The dynamics of coarse bedload transport in rivers is governed by multiple hierarchical factors including catchment-scale controls on sediment production, annually variable hydroclimatic driving of segment-scale sediment supply, and reach-scale factors related to the interaction of hydraulic forces with channel morphology. Exploring hydroclimatic drivers can beneficially utilise passive sensors to record coarse bedload transport over extended time periods and in previously unattainable resolution. For the River Avon (Devon, UK), five-minute coarse bedload frequency data collected using seismic impact plates inherently records the instantaneous variability of bedload transport intensity, patterns of event-scale hysteresis and selective path transport, and the influence of inter-event supply variations. Converting a four-year record of impacts into loads via a probabilistic, data-driven model illustrates the combined influence of hydroclimate and sedimentology on bedload at the inter-annual scale. Despite highly variable water years, the results indicate that 'bar-building flows' consistently achieve the peak efficiency for coarse bedload transport whereas bankfull flows are relatively ineffective. Further, annual sediment rating curves combine both supply and transport limiting phases. Sediment transport forecasting is thus sensitive to both flow year type and antecedent controls on sediment supply, with implications for advancing sustainable solutions in river management.

dc.format.extent05014-05014
dc.language.isoen
dc.publisherEDP Sciences
dc.titleDetermining the dynamics of coarse bedload transport using passive indirect monitoring: Time-dependent variability at event to inter-annual scales
dc.typeconference
dc.typeConference Proceeding
plymouth.volume40
plymouth.conference-nameRiver Flow 2018 - Ninth International Conference on Fluvial Hydraulics
plymouth.publication-statusPublished
plymouth.journalE3S Web of Conferences
dc.identifier.doi10.1051/e3sconf/20184005014
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA14 Geography and Environmental Studies
dcterms.dateAccepted2018-05-07
dc.rights.embargodate2019-1-11
dc.identifier.eissn2267-1242
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1051/e3sconf/20184005014
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2018-09-05
rioxxterms.typeConference Paper/Proceeding/Abstract


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