Results 221 to 230 of about 5,391 (262)

Modeling Mixed Sediment Suspended Load Profiles

Journal of Hydraulic Engineering, 1989
Potential errors in calculated vertical suspended sediment concentration profiles in river flows carrying mixed sediments are investigated. These profiles are usually obtained through application of a standard ‘diffusion‐dispersion’ model; however, such models are normally formulated on the basis of a unique grain size for the sediment. Accordingly, in
Brian Morse, Ronald D. Townsend
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Suspended sediment load in the Amazon basin: An overview

GeoJournal, 1989
In this report the state of knowledge of sediment transport by rivers of the Amazon drainage basin is reviewed. On an annual basis the Amazon river transports about 1200×106 tons of sediment from the South American continent to the ocean, which puts it among the world's largest rivers in this respect. The main source of sediment is erosion in the Andes
Martinelli, Luiz Antônio, Victória, Reynaldo Luiz, Devol, Allan H., Richey, Jeffrey E., Forsberg, Bruce Rider   +4 more
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On the calculation of suspended load for noncohesive sediments

Journal of Geophysical Research: Oceans, 1992
Calculation of suspended sediment transport rates requires integration of the product of sediment concentration times velocity over the depth of the flow; hence accurate profiles of these quantities are required especially near the sediment bed. Although this would appear to be a straightforward task, many effects can cause significant deviation of ...
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Estimation of suspended-sediment rating curves and mean suspended-sediment loads

Journal of Hydrology, 1991
Suspended-sediment loads are often estimated from an empirical relation between suspended-sediment load (L) and streamflow (S). This relation is usually defined as a power function, L = aSb, and is referred to as a suspended-sediment rating curve. This function can be formulated as either a linear or non-linear model to find the solution of the rating ...
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Suspended sediment load of Bulgarian rivers

GeoJournal, 1996
In 1951–52, a nationwide sediment gauge network was initiated in Bulgaria. In 1992–93 a Computerized Information Base of Sediment Data for the Bulgarian rivers was developed. Some analysis has shown that the long term sequences of the annual suspended sediment load of the rivers are not homogeneous. The period 1980–90 has received special attention due
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Cokriging estimation of daily suspended sediment loads

Journal of Hydrology, 2006
Daily suspended sediment loads (S) were estimated using cokriging (CK) of S with daily river discharge based on weekly, biweekly, or monthly sampled sediment data. They were also estimated with ordinary kriging (OK) and a rating curve method. The estimated daily loads were compared with the daily measured values over a nine-year-period.
Zhongwei Li, You-Kuan Zhang, Keith Schilling, Mary Skopec   +3 more
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Suspended Wash Load Transport of Nonuniform Sediments

Journal of Hydraulic Engineering, 2010
The results of an experimental study on transport of suspended wash load through a coarse-bed stream are presented. The experiments were conducted under different concentrations of fine suspended sediment (wash load of uniform size, 0.064 mm diameter) and with three different coarse-bed sediments: two having uniform sizes and one with nonuniform size ...
Narinder K. Khullar, Umesh C. Kothyari, Kittur G. Ranga Raju   +2 more
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Estimation of Suspended Sediment Load in the Ressoul Watershed, Algeria

International Journal of Hydrology Research, 2019
Sediment load and its response to the variations of the hydrological elements are important to understand the phenomena of erosion. This study was fulfilled with the aim of developing a model to predict sediment load using sediment rating curve for the Ain Berda gauging station.
Kamel Khanchoul, Skander Khanchoul
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Recent trends in the suspended sediment loads of the world's rivers

Global and Planetary Change, 2003
Abstract The transport of sediment by rivers to the oceans represents an important pathway in the global geochemical cycle, a key component of the global denudation system, and an important measure of land degradation and the associated reduction in the global soil resource.
D.E. Walling, D. Fang
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Sediment transport - bed load and suspended load

2009
This chapter introduces the useful principles for understanding sediment transport in rivers.
El Kadi, K., Paquier, André, Tanguy, J. M.   +2 more
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