Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river

C. A. Unsworth, A. P. Nicholas, P. J. Ashworth, C. J. Simpson, James Leonard Best, S. N. Lane, D. R. Parsons, G. H. Sambrook Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The morphodynamics of sandy braided rivers are complicated by the presence of bedforms, which alter the spatial distribution of momentum, shear and sediment transport. These effects are not understood well and are typically simplified in morphodynamic models. This paper presents acoustic Doppler Current Profiler (aDcp) measurements of flow, and Unmanned Aerial Vehicle (UAV) photogrammetric surveys of a 600 m reach of the sandy braided South Saskatchewan River, Canada. The response of alluvial bedforms to varying flow direction, bed-slope and sediment availability is examined, and the use of bedform crestline tracking to estimate sediment transport direction is discussed.

Original languageEnglish (US)
Title of host publicationRiver Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016
EditorsDan Hanes, Marcelo Garcia, George Constantinescu
PublisherCRC Press/Balkema
Pages1138-1146
Number of pages9
ISBN (Print)9781138029132
StatePublished - Jan 1 2016
EventInternational Conference on Fluvial Hydraulics, RIVER FLOW 2016 - St. Louis, United States
Duration: Jul 11 2016Jul 14 2016

Publication series

NameRiver Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016

Other

OtherInternational Conference on Fluvial Hydraulics, RIVER FLOW 2016
CountryUnited States
CitySt. Louis
Period7/11/167/14/16

Fingerprint

braided river
Sediment transport
bedform
sediment transport
Rivers
morphodynamics
Electric current measurement
Unmanned aerial vehicles (UAV)
Spatial distribution
Momentum
Sediments
Acoustics
Acoustic Doppler Current Profiler
Availability
momentum
spatial distribution
river
sediment
Direction compound

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Geotechnical Engineering and Engineering Geology

Cite this

Unsworth, C. A., Nicholas, A. P., Ashworth, P. J., Simpson, C. J., Best, J. L., Lane, S. N., ... Sambrook Smith, G. H. (2016). Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. In D. Hanes, M. Garcia, & G. Constantinescu (Eds.), River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016 (pp. 1138-1146). (River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016). CRC Press/Balkema.

Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. / Unsworth, C. A.; Nicholas, A. P.; Ashworth, P. J.; Simpson, C. J.; Best, James Leonard; Lane, S. N.; Parsons, D. R.; Sambrook Smith, G. H.

River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. ed. / Dan Hanes; Marcelo Garcia; George Constantinescu. CRC Press/Balkema, 2016. p. 1138-1146 (River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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 D Hanes, M Garcia & G Constantinescu (eds), River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016, CRC Press/Balkema, pp. 1138-1146, International Conference on Fluvial Hydraulics, RIVER FLOW 2016, St. Louis, United States, 7/11/16.
Unsworth CA, Nicholas AP, Ashworth PJ, Simpson CJ, Best JL, Lane SN et al. Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. In Hanes D, Garcia M, Constantinescu G, editors, River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. CRC Press/Balkema. 2016. p. 1138-1146. (River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016).
Unsworth, C. A. ; Nicholas, A. P. ; Ashworth, P. J. ; Simpson, C. J. ; Best, James Leonard ; Lane, S. N. ; Parsons, D. R. ; Sambrook Smith, G. H. / Using bedform migration and orientation to infer sediment transport pathways in a sandy braided river. River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016. editor / Dan Hanes ; Marcelo Garcia ; George Constantinescu. CRC Press/Balkema, 2016. pp. 1138-1146 (River Flow - Proceedings of the International Conference on Fluvial Hydraulics, RIVER FLOW 2016).
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