Spatial and temporal variations of suspended sediment concentrations from different floodplain environments

C. R. Salas, B. L. Rhoads

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

Abstract

Overbank sedimentation occurs when flood waters exceed the bankfull capacity of the main channel, resulting in widespread inundation of the floodplain. Recent work has shown that bank elevations of main channels are often uneven, resulting in inundation of parts of the floodplain during events below the average bankfull stage. Despite dynamic changes in channel-floodplain connectivity as stage varies, few studies have examined how such changes influence spatial and temporal variability in suspended sediment concentrations of floodwaters within the floodplain environment. The objective of this study is to investigate the spatial and temporal distribution of suspended sediment concentrations on the floodplain of a lowland meandering river during several different flood events of varying magnitudes. Suspended sediment samples are collected near and distal to the main channel using vertically stacked single-stage siphon samplers. Results show that SSCs vary both with depositional environment and with stage of flood waters on the floodplain.

Original languageEnglish (US)
Title of host publicationRiver Flow - Proceedings of the 11th Conference on Fluvial Hydraulics, 2022
EditorsAna Maria Ferreira da Silva, Colin Rennie, Susan Gaskin, Jay Lacey, Bruce MacVicar
PublisherCRC Press/Balkema
Pages202-209
Number of pages8
ISBN (Print)9781032346137
DOIs
StatePublished - 2024
Event11th International Conference on Fluvial Hydraulics, River Flow 2022 - Kingston, Canada
Duration: Nov 8 2022Nov 10 2022

Publication series

NameRiver Flow - Proceedings of the 11th Conference on Fluvial Hydraulics, 2022

Conference

Conference11th International Conference on Fluvial Hydraulics, River Flow 2022
Country/TerritoryCanada
CityKingston
Period11/8/2211/10/22

ASJC Scopus subject areas

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

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