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dc.contributor.authorGanti, Vamsi
Chu, Zhongxin
Lamb, Michael P.
Nittrouer, Jeffrey A.
Parker, Gary
dc.date.accessioned 2014-12-01T17:26:01Z
dc.date.available 2014-12-01T17:26:01Z
dc.date.issued 2014
dc.identifier.citation Ganti, 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." Geophysical Research Letters, 41, (2014) American Geophysical Union: http://dx.doi.org/10.1002/2014GL061918.
dc.identifier.urihttps://hdl.handle.net/1911/78534
dc.description.abstract A 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.
dc.language.iso eng
dc.publisher American Geophysical Union
dc.rights Article 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.title Testing morphodynamic controls on the location and frequency of river avulsions on fans versus deltas: Huanghe (Yellow River), China
dc.type Journal article
dc.contributor.funder National Science Foundation
dc.contributor.funder Terrestrial Hazard Observations and Reporting Center (THOR), California Institute of Technology
dc.contributor.funder National Center for Earth-surface Dynamics
dc.contributor.funder National Natural Science Foundation of China
dc.citation.journalTitle Geophysical Research Letters
dc.citation.volumeNumber 41
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1002/2014GL061918
dc.identifier.grantID OCE-1233685 (National Science Foundation)
dc.identifier.grantID 41376052 (National Natural Science Foundation of China)
dc.type.publication publisher version


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