Skip to main content

Long-term continuous acoustical suspended-sediment measurements in rivers – Theory, evaluation, and results from 14 stations on five rivers

Dates

Publication Date

Citation

Topping, D.J., Wright, S.A., Griffiths, R.E., and Dean, D.J., 2016, Long-term continuous acoustical suspended-sediment measurements in rivers – Theory, evaluation, and results from 14 stations on five rivers, in Constantinescu, G., Garcia, M., and Hanes, D., eds., River Flow 2016, CD-ROM Proceedings of the International Conference on Fluvial Hydraulics, St. Louis, Missouri, USA, July 11-14, 2016, ISBN 978-1-138-2913-2 for set of Book and CD-ROM, ISBN 978-1-315-64447-9 for eBook PDF, p. 1510-1518 on CD-ROM.

Summary

We have developed a physically based method for using two acoustic frequencies to measure suspended-silt-and-clay concentration, suspended-sand concentration, and suspended-sand median grain size in river cross sections at 15-minute intervals over decadal timescales. The method is strongly grounded in the extensive scientific literature on the scattering of sound by suspensions of small particles. In particular, the method takes advantage of the specific theoretical relations among acoustic frequency, acoustic attenuation, acoustic backscatter, suspended-sediment concentration, and suspended-sediment grain-size distribution. We briefly describe the theory and methods, demonstrate the application of the method, and compute biases and [...]

Contacts

Attached Files

Thumbnail
Thumbnail

Tags

Categories
Types

Additional Information

Identifiers

Type Scheme Key
local-index unknown 70178133
local-pk unknown 70178133

Citation Extension

citationTypeConference Paper
conferenceRiver Flow 2016
languageEnglish

Item Actions

View Item as ...

Save Item as ...

View Item...