Turbidity threshold sampling: Methods and instrumentation

Rand Eads; Jack Lewis

Treesearch

Turbidity threshold sampling: Methods and instrumentation

Informally Refereed

Authors:

Rand Eads, Jack Lewis

Year:

2001

Type:

Miscellaneous Publication

Station:

Pacific Southwest Research Station

Source:

Page Poster-27, in: Proceedings of the Seventh Federal Interagency Sedimentation Conference, 25-29 March 2001, Reno, Nevada. Federal Interagency Project, Technical Committee of the Subcommittee on Sedimentation.

Download (PDF 7 KB)

Download (PDF 7 KB): https://research.fs.usda.gov/download/treesearch/7763.pdf

Abstract

Traditional methods for determining the frequency of suspended sediment sample collection often rely on measurements, such as water discharge, that are not well correlated to sediment concentration. Stream power is generally not a good predictor of sediment concentration for rivers that transport the bulk of their load as fines, due to the highly variable routing of sediment to the channel from hillslopes, roads, and landslides. A method, such as turbidity threshold sampling, that employs a parameter well correlated to concentration, can improve sampling efficiency by collecting samples that are distributed over a range of rising and falling concentrations.

Keywords

PSW4351, Caspar Creek, sediment, water discharge, turbidity threshold sampling, sediment concentration, data logger

Citation

Eads, Rand; Lewis, Jack. 2001. Turbidity threshold sampling: Methods and instrumentation. Page Poster-27, in: Proceedings of the Seventh Federal Interagency Sedimentation Conference, 25-29 March 2001, Reno, Nevada. Federal Interagency Project, Technical Committee of the Subcommittee on Sedimentation.