Testing morphodynamic controls on the location and frequency of river avulsions on fans versus deltas: Huanghe (Yellow River), China

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dc.citation.journalTitleGeophysical Research Lettersen_US
dc.citation.volumeNumber41en_US
dc.contributor.authorGanti, Vamsien_US
dc.contributor.authorChu, Zhongxinen_US
dc.contributor.authorLamb, Michael P.en_US
dc.contributor.authorNittrouer, Jeffrey A.en_US
dc.contributor.authorParker, Garyen_US
dc.date.accessioned2014-12-01T17:26:01Z
dc.date.available2014-12-01T17:26:01Z
dc.date.issued2014en_US
dc.description.abstractA mechanistic understanding of river avulsion location and frequency is needed to predict the growth of alluvial fans and deltas. The Huanghe, China, provides a rare opportunity to test emerging theories because its high sediment load produces regular avulsions at two distinct nodes. Where the river debouches from the Loess Plateau, avulsions occur at an abrupt decrease in bed slope and reoccur at a time interval (607 years) consistent with a channel-filling timescale set by the superelevation height of the levees. Downstream, natural deltaic avulsions reoccur at a timescale that is fast (7 years) compared to channel-filling timescale due to large stage-height variability during floods. Unlike the upstream node, deltaic avulsions cluster at a location influenced by backwater hydrodynamics and show evidence for episodic downstream migration in concert with progradation of the shoreline, providing new expectations for the interplay between avulsion location, frequency, shoreline rugosity, and delta morphology.en_US
dc.identifier.citationGanti, Vamsi, Chu, Zhongxin, Lamb, Michael P., et al.. "Testing morphodynamic controls on the location and frequency of river avulsions on fans versus deltas: Huanghe (Yellow River), China." <i>Geophysical Research Letters,</i> 41, (2014) American Geophysical Union: http://dx.doi.org/10.1002/2014GL061918.
dc.identifier.doihttp://dx.doi.org/10.1002/2014GL061918en_US
dc.identifier.urihttps://hdl.handle.net/1911/78534
dc.language.isoengen_US
dc.publisherAmerican Geophysical Union
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titleTesting morphodynamic controls on the location and frequency of river avulsions on fans versus deltas: Huanghe (Yellow River), Chinaen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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