Large-scale laboratory testing of bedload-monitoring technologies: overview of the StreamLab06 Experiments

By: , and 
Edited by: John R. GrayJonathan B. Laronne, and Jeffrey D.G. Marr

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Abstract

A 3-month-long, large-scale flume experiment involving research and testing of selected conventional and surrogate bedload-monitoring technologies was conducted in the Main Channel at the St. Anthony Falls Laboratory under the auspices of the National Center for Earth-surface Dynamics. These experiments, dubbed StreamLab06, involved 25 researchers and volunteers from academia, government, and the private sector. The research channel was equipped with a sediment-recirculation system and a sediment-flux monitoring system that allowed continuous measurement of sediment flux in the flume and provided a data set by which samplers were evaluated. Selected bedload-measurement technologies were tested under a range of flow and sediment-transport conditions. The experiment was conducted in two phases. The bed material in phase I was well-sorted siliceous sand (0.6-1.8 mm median diameter). A gravel mixture (1-32 mm median diameter) composed the bed material in phase II. Four conventional bedload samplers – a standard Helley-Smith, Elwha, BLH-84, and Toutle River II (TR-2) sampler – were manually deployed as part of both experiment phases. Bedload traps were deployed in study Phase II. Two surrogate bedload samplers – stationarymounted down-looking 600 kHz and 1200 kHz acoustic Doppler current profilers – were deployed in experiment phase II. This paper presents an overview of the experiment including the specific data-collection technologies used and the ambient hydraulic, sediment-transport and environmental conditions measured as part of the experiment. All data collected as part of the StreamLab06 experiments are, or will be available to the research community.

Additional publication details

Publication type Book chapter
Publication Subtype Book Chapter
Title Large-scale laboratory testing of bedload-monitoring technologies: overview of the StreamLab06 Experiments
Year Published 2010
Language English
Publisher U.S. Geological Survey
Contributing office(s) Office of Surface Water
Description 17 p.
Larger Work Type Book
Larger Work Title Bedload-surrogate monitoring technologies
First page 266
Last page 282
Online Only (Y/N) N
Additional Online Files (Y/N) N