Showing papers in "International Journal of Sediment Research in 2020"

TL;DR: In this article, the authors conducted an extensive survey to understand the current situation and propose possible remedial measures to mitigate heavy metal pollution in sediment, which is a serious concern particularly in developing nations.

TL;DR: In this paper, the authors used check dams to deduce the amount of soil erosion under extreme rainstorms in a watershed and to identify the difference in sediment interception efficiency of different types of check dams.

TL;DR: In this article, a combination of sensitivity and uncertainty analyses with a machine learning technique is proposed as a tool for selection of the best input combination for modeling process at non-deposition conditions of sediment transport.

TL;DR: It is revealed that sediment microbial community structures among different regions of a shallow lake are mainly impacted by human activities.

TL;DR: In this article, the influence of ultra-fine particulate matter (UFPM) on specific turbidity and its association with POM in suspended sediment are shown for alpine rivers in the Southern Alps of New Zealand.

TL;DR: In this paper, a sediment-scour model with a strict vertex-based, terrain conformal, moving-mesh technique within the framework of OpenFOAM is presented.

TL;DR: In this paper, the authors studied the regularity of sediment transport and sedimentation during floods in the lower Yellow River (LYR) and found that the sediment transport rate at downstream stations was strongly correlated with the inflow (upstream station) sediment concentration during a flood event.

TL;DR: In this article, the rheological behavior of natural slurries consisting of fine-grained, reconstituted debris-flow deposits on pyroclastic terrains having different solid concentrations (ranging from 30 to 42%) has been investigated using a rotational rheometer equipped with a vane rotor system.

TL;DR: In this article, the authors used a 3D CFD model to calculate the scour and deposition pattern around an abutment under constant discharge condition, where the Level Set Method (LSM) was used for calculation of both free surface and bed topography.

TL;DR: In this paper, the spatial variability in sources of sediment carbon to nitrogen (C/N) ratios, and the influence of land use and land cover (LULC) changes on the Betwa River basin in Peninsular India, 51 river bed sediment samples were collected in December 2016.

TL;DR: In this paper, organic matter dynamics and humic substances (HS) spectrochemical properties along the lower-middle basin of the Suquia River were investigated. But the results were limited to a small portion of the river basin.

TL;DR: In this article, a large-eddy simulation (LES) model is used to study flow dynamics of a flash flood event in a dry-bed, desert wash, the so-called Tex Wash, near the Tex Wash Bridge on Interstate 10 in the Mojave Desert of California.

TL;DR: In this paper, the authors used a site investigation of a debris flow disaster and verified a real scale analysis to evaluate the impulsive load on an open sabo dam, where the stiffness coefficient of flanges and coupling joints between pipes was expressed to determine the structural characteristics.

TL;DR: In this paper, the authors examined the feedback between fluvial processes and mass flows in the Yigong and Palong rivers and found that mass flow events have resulted in an imbalance of the previous (quasi-)equilibrium in the river morphology.

TL;DR: In this paper, a panel data method was applied to quantify the impact of land use change on SESY in 1954, 1975, and 2015, based on the WaTEM/SEDEM model and seven landscape metrics for 25 reservoir catchments in northeastern China.

TL;DR: The model was applied to two cases to evaluate bed evolution and the effects of the morphological changes on the flood patterns with high resolution, indicating that the GPU-based high-resolution hydro-geomorphological model was capable of reproducing morphological processes.

TL;DR: In this article, a large-eddy simulation model is developed to simulate the hydrodynamics and scour process around a circular cylinder, and the Navier-Stokes solver is based on the projection method and a second-order unstructured finite volume method.

TL;DR: In this paper, a novel uncertainty analysis method based on the framework of a Bayesian Forecasting System (BFS) is presented to evaluate the Shannon entropy model for prediction of the shear stress distribution in both circular rigid-bed and alluvial-bed channels.

TL;DR: In this paper, an analytical approach was selected to calculate the suitable dimensions for a stable channel, using equations that describe the physical relation of sediment transport, flow resistance, and dynamic equilibrium.

TL;DR: In this paper, textural characteristics, heavy mineral composition, and grain microtextures of the sediment from three micro-environments (foreshore, berm, and dune) have been collected from fifteen (15) locations along the beach area between the Sarada and Gosthani rivers.

TL;DR: In this paper, the seasonal variability of suspended particulate matter fluxes from the drainage basin to the estuary in a macrotidal region (Northeastern Brazil) and the estuarine response to a seawater intrusion regarding sediment deposition was investigated.

TL;DR: In this article, two kernel-based approaches, Support Vector Machine (SVM) and Gaussian Process Regression (GPR), were applied to develop roughness coefficient models for sewer pipes.

TL;DR: In this paper, a rotating-head sonar profiler attached to a slider mechanism is used to measure the complex erosion and deposition features of local scour holes developing in clear-water conditions around vertical cylinders mimicking bridge piers.

TL;DR: In this article, the authors developed a linear spectral unmixing (LSU) remote sensing model and evaluated its performance in simulating the suspended sediment concentration (SSC) in flash floods.

TL;DR: In this article, a set of stochastic differential equations (SDEs) driven by fractional white noise and Poisson noise are developed to simulate the historical dynamic probability distributions of typical hydraulic geometry variables such as slope, width, depth, and velocity with bank full discharge variation over time in the lower Yellow River of China.

TL;DR: In this article, the Yom River discharge and sediment characteristics were investigated using field observation data from 2011 to 2013 and historical river flow and sediment data from 1954 to 2014 at six hydrological stations operated by the Royal Irrigation Department of Thailand.

TL;DR: In this article, the large spatial scale diversity in sediment from a brackish water lagoon (Chilika Lake, India) is studied, considering the large scale physical and chemical characteristics of land cover, climate, pH, and salinity.

TL;DR: In this paper, sediment core samples in two Tatra Mountains lakes, determination of the selected elements (including cesium 137 radionuclide activity and heavy metals' concentrations) and dating of the obtained layers by the lead 210 method were done.

TL;DR: In this paper, water quality measurements were made in the laboratory and field, and a series of phosphorus release experiments was done to understand the behavior of P in an estuary lake, where concentrations of chemical oxygen demand, chlorophyll-a (Chl-a), and total P (TP) showed an increasing trend when the pollutant loading of the influent stream water was high.

TL;DR: In this paper, an evaluation of simultaneous bioelectricity generation and remediation of sulfide contaminated tidal flat sediment has been done, where sediment samples collected from Tokyo Bay and Yamaguchi Bay, Japan, have been used in the laboratory test.