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dc.contributor.authorHage, S
dc.contributor.authorCartigny, MJB
dc.contributor.authorSumner, EJ
dc.contributor.authorClare, MA
dc.contributor.authorHughes Clarke, JE
dc.contributor.authorTalling, PJ
dc.contributor.authorLintern, DG
dc.contributor.authorSimmons, SM
dc.contributor.authorSilva Jacinto, R
dc.contributor.authorVellinga, AJ
dc.contributor.authorAllin, JR
dc.contributor.authorAzpiroz‐Zabala, M
dc.contributor.authorGales, JA
dc.contributor.authorHizzett, JL
dc.contributor.authorHunt, JE
dc.contributor.authorMozzato, A
dc.contributor.authorParsons, DR
dc.contributor.authorPope, EL
dc.contributor.authorStacey, CD
dc.contributor.authorSymons, WO
dc.contributor.authorVardy, ME
dc.contributor.authorWatts, C
dc.date.accessioned2019-09-20T11:08:08Z
dc.date.available2019-09-20T11:08:08Z
dc.date.issued2019-09-13
dc.identifier.issn0094-8276
dc.identifier.issn1944-8007
dc.identifier.other0
dc.identifier.urihttp://hdl.handle.net/10026.1/14929
dc.description.abstract

<jats:title>Abstract</jats:title><jats:p>Rivers (on land) and turbidity currents (in the ocean) are the most important sediment transport processes on Earth. Yet how rivers generate turbidity currents as they enter the coastal ocean remains poorly understood. The current paradigm, based on laboratory experiments, is that turbidity currents are triggered when river plumes exceed a threshold sediment concentration of ~1 kg/m<jats:sup>3</jats:sup>. Here we present direct observations of an exceptionally dilute river plume, with sediment concentrations 1 order of magnitude below this threshold (0.07 kg/m<jats:sup>3</jats:sup>), which generated a fast (1.5 m/s), erosive, short‐lived (6 min) turbidity current. However, no turbidity current occurred during subsequent river plumes. We infer that turbidity currents are generated when fine sediment, accumulating in a tidal turbidity maximum, is released during spring tide. This means that very dilute river plumes can generate turbidity currents more frequently and in a wider range of locations than previously thought.</jats:p>

dc.format.extent11310-11320
dc.format.mediumPrint-Electronic
dc.languageen
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.subject37 Earth Sciences
dc.subject3708 Oceanography
dc.subject14 Life Below Water
dc.titleDirect monitoring reveals initiation of turbidity currents from extremely dilute river plumes
dc.typejournal-article
dc.typeArticle
plymouth.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/31894170
plymouth.issue20
plymouth.volume46
plymouth.publisher-urlhttp://dx.doi.org/10.1029/2019gl084526
plymouth.publication-statusPublished
plymouth.journalGeophysical Research Letters
dc.identifier.doi10.1029/2019gl084526
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Biological and Marine Sciences
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA07 Earth Systems and Environmental Sciences
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dc.publisher.placeUnited States
dcterms.dateAccepted2019-09-02
dc.rights.embargodate2020-3-12
dc.identifier.eissn1944-8007
dc.rights.embargoperiodNot known
rioxxterms.versionofrecord10.1029/2019gl084526
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2019-09-13
rioxxterms.typeJournal Article/Review


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