Skip to Main Content
Particle size variations between bed load and bed material in natural gravel bed channelsAuthor(s): Thomas E. Lisle
Source: Water Resources Research 31(4): 1107-1118.
Publication Series: Miscellaneous Publication
PDF: Download Publication (1259 KB)
DescriptionAbstract - Particle sizes of bed load and bed material that represent materials transported and stored over a period of years are used to investigate selective transport in 13 previously sampled, natural gravel bed channels. The ratio (D*) of median particle size of bed material to the transport- and frequency-weighted mean of median bed load size decreases to unity with increasing drainage area, bank-full discharge, dimensionless stream power, and bed material sorting. In channels with high values of D*, significant volumes of fine bed load are transported during discharges that are less than bank-full, which is commonly associated with general entrainment of the coarse pavement in many gravel bed channels. This indicates transport of fine bed load over a more stable substrate of coarser bed material.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationLisle, Thomas E. 1995. Particle size variations between bed load and bed material in natural gravel bed channels. Water Resources Research 31(4): 1107-1118.
KeywordsPSW4351, bed load, bed material, particle size, gravel bed channels, sediment, subsurface
- Fine bed material in pools of natural gravel bed channels
- Effects of hydraulic roughness on surface textures of gravel-bed rivers
- The dominance of dispersion in the evolution of bed material waves in gravel-bed rivers
XML: View XML