A comparison of coarse bedload transport measured with bedload traps and Helley-Smith samplers
Gravel bedload transport rates were measured at 8 study sites in coarse-bedded Rocky Mountain streams using 4-6 bedload traps deployed across the stream width and a 76 by 76 mm opening Helley Smith sampler. Differences in sampler opening size
Measurements using a Large Helley-Smith sampler were performed over a period of 5 years in the large Alpine Drau River, Austria. The results reveal the high spatio-temporal variability of bedload transport rates. Commonly used bedload predictors
2002 and the Urumqi River, in the Chinese Tianshan mountains during summer 2005 and 2006. Analysis of the dataset leads to question the usual section averaged sampling procedure of bedload using Helley-Smith type bedload sampler. It is shown