A comprehensive fluvial geomorphology study of riverbank erosion on the Red River in Winnipeg, Manitoba, Canada

Kimiaghalam, Navid; Goharrokhi, Masoud; Clark, Shawn P.; Ahmari, Habib

doi:10.1016/j.jhydrol.2015.08.033

Cited by 38 publications

(19 citation statements)

References 17 publications

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“…This effect has been widely discussed and therefore, the obtained results confirm its validity. In addition, the increased mean temperature provokes the thawing of the frozen shallow soil layers, which reduces the soil strength and therefore, loosens the surface and makes it susceptible to the different erosive agents [90].…”

Section: Discussionmentioning

confidence: 99%

Monitoring Riverbank Erosion in Mountain Catchments Using Terrestrial Laser Scanning

et al. 2016

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Sediment yield is a key factor in river basins management due to the various and adverse consequences that erosion and sediment transport in rivers may have on the environment. Although various contributions can be found in the literature about sediment yield modeling and bank erosion monitoring, the link between weather conditions, river flow rate and bank erosion remains scarcely known. Thus, a basin scale assessment of sediment yield due to riverbank erosion is an objective hard to be reached. In order to enhance the current knowledge in this field, a monitoring method based on high resolution 3D model reconstruction of riverbanks, surveyed by multi-temporal terrestrial laser scanning, was applied to four banks in Val Tartano, Northern Italy. Six data acquisitions over one year were taken, with the aim to better understand the erosion processes and their triggering factors by means of more frequent observations compared to usual annual campaigns. The objective of the research is to address three key questions concerning bank erosion: "how" erosion happens, "when" during the year and "how much" sediment is eroded. The method proved to be effective and able to measure both eroded and deposited volume in the surveyed area. Finally an attempt to extrapolate basin scale volume for bank erosion is presented.

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Section: Discussionmentioning

confidence: 99%

Monitoring Riverbank Erosion in Mountain Catchments Using Terrestrial Laser Scanning

et al. 2016

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“…Then the cylinder was covered with a lid and kept under a static condition for 7 days. During sediment suspension, the perforated grids were oscillated with vertical amplitude of 3.2 cm (between 5.0 and 8.2 cm above from the sediment surface), and they were driven by the speed motor with 150 rpm, corresponding to 6.4 N/m 2 , which was in the range of erosion shear stress (0.2-75 N/m 2 ) found in natural rivers (Babaeyan-Koopaei et al, 2002;Keevil et al, 2015;Kimiaghalam et al, 2015;Krishnappan and Marsalek, 2002;Reungoat et al, 2014). Furthermore, the experimental parameters including water depth and the sediment thickness used in this study are similar to other simulation experiments Schneider et al, 2007).…”

Section: Sediment Resuspension Experimentsmentioning

confidence: 99%

Effect of recurrent sediment resuspension-deposition events on bioavailability of polycyclic aromatic hydrocarbons in aquatic environments

Dong

Xia

Wang³

et al. 2016

Journal of Hydrology

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a b s t r a c tTo investigate the effect of recurrent sediment resuspension-deposition events (RSRDEs) on bioavailability of polycyclic aromatic hydrocarbons (PAHs) in aquatic environments, a modified device was used to simulate three resuspension-deposition events with the sediment collected from the Yellow River. The results showed that the dissolved organic carbon (DOC)-water distribution coefficients of PAHs decreased with time during the first resuspension-deposition period. It indicates that some PAHs associated with organic carbon (OC) in suspended sediment (SPS) desorbed with the release of OC and became DOC-associated PAHs in the overlying water, then the PAHs desorbed from the DOC and became freely dissolved. After first 2-h suspension, only 1.90% of phenanthrene, 2.98% of pyrene, and 0.33% of chrysene in the overlying water came from pore-water; at least 61.6%, 89.6%, and 95.3% came from DOC-associated PAHs in SPS and the rests were released from the insoluble OC in SPS. The maximum desorption ratios in the original sediment were 20%, 12%, and 14% for phenanthrene, pyrene, and chrysene, respectively during the first resuspension-deposition event. The SPS concentration followed the sequence of the third > second > first resuspension event. This was because RSRDEs changed the SPS particle size and enhanced floc formation. There was no significant difference in the total dissolved PAH concentrations among the three resuspension events, while their freely dissolved concentrations followed the sequence of the third > second > first resuspension event. During deposition periods, more than half of the total/freely dissolved PAHs released during suspension still existed in the overlying water after 70-h deposition. This study suggests that the RSRDEs will increase the bioavailability of PAHs in aquatic environments, especially near the sediment-water interface, and the potential effects of PAHs during RSRDEs on fish/human in rivers and lakes should be considered in future management.

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“…() between the morphological activity rate of the river bank and the water discharge in a British upland catchment. However, it has been proven that non‐fluvial factors such as the geotechnical properties of bank soil and the change in groundwater level can also play an important role in bank retreat processes (Simon et al ., ; Couper, ; Chiang et al ., ; Karmaker and Dutta, ; Xia et al ., ; Kimiaghalam et al ., ). In terms of geotechnical properties, cohesive bank soil usually has a stronger resistance to erosion than non‐cohesive bank soil, due to the electromechanical cohesive forces among soil particles and the stronger shear strength of the soil (Thorne et al ., ; Karmaker and Dutta, ).…”

Section: Introductionmentioning

confidence: 97%

Coupled modeling of bank retreat processes in the Upper Jingjiang Reach, China

Deng

Xia

et al. 2018

Earth Surf Processes Landf

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Bank retreat processes in the Upper Jingjiang Reach (UJR) have attracted much attention in recent years due to a high occurrence frequency, and these processes can be influenced significantly by the near‐bank fluvial erosion and variations in river stage and groundwater level. A coupled model was thus proposed in this study, integrating the module of bank‐toe deformation with the modules of groundwater level change and bank stability analysis. The proposed model was validated through comparisons between the calculated and measured bank erosion volumes and bank profiles at four typical sections in the UJR, with relatively close agreement being obtained. Multiple tests were conducted to investigate the model performance. These results show that: (i) a more rapid drawdown of river stage resulted in a more significantly delayed response of groundwater level to river stage, indicating that the bank may suffer a higher pore water pressure at the same river stage during the rapid drawdown period; (ii) a larger bank erosion volume was predicted, with the delayed response of groundwater level being considered. In addition, initial groundwater level may take a great impact on bank erosion simulations, especially for the banks with relatively lower soil permeability and shear strength); (iii) based on the adopted method of bank stability analysis, the occurrence of the first failure may greatly influence the sequential failures, and thus the total number and volume of bank failure; (iv) the calculated bank erosion volume was most sensitive to a change in the critical shear stress, especially to its decrease, when the erodibility coefficient was determined by an empirical function of the critical shear stress. © 2018 John Wiley & Sons, Ltd.

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A comprehensive fluvial geomorphology study of riverbank erosion on the Red River in Winnipeg, Manitoba, Canada

Cited by 38 publications

References 17 publications

Monitoring Riverbank Erosion in Mountain Catchments Using Terrestrial Laser Scanning

Monitoring Riverbank Erosion in Mountain Catchments Using Terrestrial Laser Scanning

Effect of recurrent sediment resuspension-deposition events on bioavailability of polycyclic aromatic hydrocarbons in aquatic environments

Coupled modeling of bank retreat processes in the Upper Jingjiang Reach, China

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