Results 1 to 10 of about 220,289 (256)

Sediment Load and Suspended Sediment Concentration Prediction [PDF]

Soil and Water Research, 2006
Sediment is a natural component of riverine environments and its presence in river systems is essential. However, in many ways and many places river systems and the landscape have been strongly affected by human activities which have destroyed naturally ...
Martin Bečvář
doaj   +2 more sources

A comparative survey between cascade correlation neural network (CCNN) and feedforward neural network (FFNN) machine learning models for forecasting suspended sediment concentration

Scientific Reports
Suspended sediment concentration prediction is critical for the design of reservoirs, dams, rivers ecosystems, various operations of aquatic resource structure, environmental safety, and water management.
Bhupendra Joshi, Vijay Kumar Singh, Dinesh Kumar Vishwakarma, Mohammad Ali Ghorbani, Sungwon Kim, Shivam Gupta, V. K. Chandola, Jitendra Rajput, Il-Moon Chung, Krishna Kumar Yadav, Ehsan Mirzania, Nadhir Al-Ansari, Mohamed A. Mattar   +12 more
doaj   +2 more sources

Analytical model for the suspended sediment concentration in the ice-covered alluvial channels

Journal of Hydrology, 2021
Ice cover formed on an alluvial channel can significantly alter the flow characteristics, such as the vertical distributions of streamwise velocity and shear stress, and hence the water and sediment transport process.
Wen-Xin Huai, Feifei Wang, Yakun Guo
exaly   +2 more sources

Human activities change suspended sediment concentration along rivers

Environmental Research Letters, 2023
Humans have drastically disrupted the global sediment cycle. Suspended sediment flux and concentration are key controls over both river morphology and river ecosystems.
John Gardner, Tamlin Pavelsky, Simon Topp, Xiao Yang, Matthew R V Ross, Sagy Cohen   +5 more
doaj   +2 more sources

Predicting the vertical low suspended sediment concentration in vegetated flow using a random displacement model

Journal of Hydrology, 2019
Based on the Lagrangian approach, this study proposes a random displacement model (RDM) to predict the concentration of suspended sediment in vegetated steady open channel flow. Validation of the method was conducted by comparing the simulated results by
Wen-Xin Huai, Weijie Wang, Yakun Guo
exaly   +2 more sources

Estimation of Suspended Sediment Concentrations with Adcp in Danube River [PDF]

Journal of Hydrology and Hydromechanics, 2013
An estimation procedure for suspended sediment concentrations based on the intensity of backscattered sound of acoustic Doppler current profilers (ADCP) is introduced in this paper.
Baranya Sándor, Józsa János
doaj   +3 more sources

Theoretical Model of Suspended Sediment Concentration in a Flow with Submerged Vegetation

Water (Switzerland), 2018
Vegetation in natural river interacts with river flow and sediment transport. This paper proposes a two-layer theoretical model based on diffusion theory for predicting the vertical distribution of suspended sediment concentration in a flow with ...
Wen-Xin Huai, Zhonghua Yang, Da Li
exaly   +2 more sources

Temporal and Spatial Distribution of Suspended Sediment Concentration in Lakes Based on Satellite Remote Sensing and Internet of Things

IEEE Access, 2021
The measurement of the concentration of suspended sediment in a water body is a very important content in the observation of hydrological elements, and it is also one of the important parameters for calculating the sediment resuspension flux. In order to
Ming Zeng, Jun Peng, Ling Jiang, Jingjuan Feng   +3 more
doaj   +1 more source

A Two‐Layer Turbulence‐Based Model to Predict Suspended Sediment Concentration in Flows With Aquatic Vegetation

Geophysical Research Letters, 2021
Traditional bed shear stress‐based models (e.g., Rouse model) derived from the classic parabolic profile of eddy viscosity in open‐channel flows fail to accurately predict suspended sediment concentration (SSC) in flows with aquatic vegetation.
C. Tseng, R. Tinoco
semanticscholar   +1 more source

Severely Declining Suspended Sediment Concentration in the Heavily Dammed Changjiang Fluvial System

Water Resources Research, 2021
As a key component of global change, dam‐induced sediment reduction occurs in large rivers worldwide, which has profound implications on the fluvial systems.
Jian Sun, Fanyi Zhang, Xiaofeng Zhang, B. Lin, Zuosheng Yang, Bing Yuan, R. Falconer   +6 more
semanticscholar   +1 more source