Results 271 to 280 of about 131,073 (307)

Suspended sediment concentrations in the Tamar estuary

Estuarine, Coastal and Shelf Science, 2003
Abstract Suspended sediment concentrations, obtained from the lower Tamar estuary in South West England using optical back scatter sensors, showed a depth-averaged background concentration of 0.02 kg m−3 throughout most of the spring–neap cycle. On spring tides the depth-averaged concentration increased to 0.25–0.40 kg m−3 either side of low water ...
G.R Tattersall, A.J Elliott, N.M Lynn
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Densimetric Monitoring Technique for Suspended-Sediment Concentrations

Journal of Hydraulic Engineering, 2010
Suspended-sediment concentration (SSC) in surface-water bodies such as rivers and reservoirs is one of the most important hydrologic data in solving engineering problems ranging from hydraulic design, river restoration, to water quality improvement and water resources management.
Yin-Sung Hsu, Jun-Feng Cai
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Effect of Suspended-Sediment Concentration on Nitrification in River Water: Importance of Suspended Sediment−Water Interface

Environmental Science & Technology, 2009
High suspended sediment (SPS) concentrations exist in many Asian river systems. In this research, the effects of SPS concentration on nitrification in river water systems were studied. With orwithout introducing ammonium-oxidizing bacteria isolated from the water and sediment samples of the Yellow River, the microbially mediated nitrification rate ...
Xinghui, Xia, Zhifeng, Yang, Xueqing, Zhang   +2 more
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Suspended sediment concentration during river ice breakup

Canadian Journal of Civil Engineering, 1993
River ice breakup is known to be an important geomorphologic agent, creating numerous erosional and depositional features within river channels and on adjacent floodplains. Despite such evidence, information about the suspended sediment concentration and bed load during breakup is virtually nonexistent. Measurements of suspended sediment concentration
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Acoustic Inversion Method for Profiling Suspended Sediment Concentration

Applied Mechanics and Materials, 2014
The concentration of suspended sediment is an important parameter for the research of sediment transport. Acoustic backscatter technique has been employed to measure the concentration of suspended sediment recently. It is an inversion problem to measure the concentration from the backscatter signal.
Jun Xi Shi, Min Zhu, Yan Bo Wu, Xing Tao Sun   +3 more
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Suspended Sediment Concentration Profiles in Wave-Current Flows

Journal of Hydraulic Engineering, 1999
Improved expressions to predict time-averaged and horizontally averaged vertical suspended sediment concentration profiles (C¯ profiles) in wave and current (w-c) conditions are required to advance our present ability to predict rates of noncohesive sediment transport in the marine environment.
J. J. Williams, C. P. Rose, L. C. Van Rijn   +2 more
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Equilibrium Near-Bed Concentration of Suspended Sediment

Journal of Hydraulic Engineering, 1999
A new approach is presented for calculating the equilibrium near-bed concentration of suspended sediment in an alluvial channel flow. It is formulated from the balance between bed sediment entrainment and suspended sediment deposition across the near-bed boundary.
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Estimating suspended sediment concentrations from spectral reflectance data

International Journal of Remote Sensing, 1990
Abstract A method for estimating sediment concentrations at different depths in coastal waters from measured spectral reflectance above the sea is proposed. The water backscattering coefficient is obtained by integrating a scattering cross section derived from Mie theory over a Junge type particle-size distribution.
L. NANU, COLETTE ROBERTSON
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Transfer function models of suspended sediment concentration

Water Resources Research, 1991
The majority of past suspended sediment concentration modeling efforts have relied on simple regression analysis. Problems with these models, and in particular, sediment rating curves, have been gaining attention recently. It is argued here that many of the problems result from the fact that simple regression models are inappropriate for modeling ...
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Multivariate time-series model for suspended sediment concentration

Continental Shelf Research, 1998
Abstract Multivariate time-series models of suspended sediment concentration are presented. The suspended sediment dynamics are considered as an unknown system to be identified. The suspended sediment concentration profile and its relationship with current velocity profile are investigated.
Huixin Chen, P.P.G. Dyke
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