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Longitudinal dispersion in natural channels: 1. Experimental results from the River Severn, UK

Atkinson, TC; Davis, PM; (2000) Longitudinal dispersion in natural channels: 1. Experimental results from the River Severn, UK. HYDROL EARTH SYST SC , 4 (3) 345 - 353. 10.5194/hess-4-345-2000. Green and gold open access

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Abstract

A tracer experiment using Rhodamine WT dye was carried out to measure longitudinal dispersion in a 14-km reach of the River Severn in Wales, U.K. The river's discharge was measured at six points and the depth, width and cross-sectional area were measured at 86 points along the test reach. The channel geometry was close to being statistically uniform. Discharge and velocity were both nearly constant. Dye concentrations were recorded at stations between 210 and 13775 m downstream of injection. Dye was injected over a short interval as a near-uniform line source across the channel. These conditions make the data useful for testing mathematical theories of dispersion. They are presented in full.

Type:Article
Title:Longitudinal dispersion in natural channels: 1. Experimental results from the River Severn, UK
Open access status:An open access publication. A version is also available from UCL Discovery.
DOI:10.5194/hess-4-345-2000
Publisher version:http://www.hydrol-earth-syst-sci.net/4/345/2000/hess-4-345-2000.html
Additional information:© Author(s) 2000. This work is licensed under a Creative Commons License.
Keywords:channels, dispersion, tracers, River Severn
UCL classification:UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Earth Sciences

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