Conference proceeding
ADCP Measurements at Fixed River Locations
Hydraulic measurements and experimental methods, 2002 : proceedings of the specialty conference, July 28-August 1, 2002, Estes Park, Colorado
2002
Abstract
Acoustic Doppler Current Profilers (ADCP) are increasingly used for measurements in riverine environment capitalizing on operation efficiency and rugged configuration. Most of the current ADCP measurements in rivers are conducted for discharge estimation. More recently however, measurements of the mean and turbulence river characteristics obtained with ADCPs are scrutinized to assess their capabilities to provide important information for special investigations such as sediment transport, ecohabitat restoration, and numerical simulation calibration/validation. The present paper analyzes ADCP measurements collected at fixed river locations over long timespans. The main purpose of the analysis is to investigate the effect of sampling time on the reliability/accuracy of the mean velocities and turbulence intensities measured with ADCP. The reliability of the mean velocity and turbulence intensities is investigated using several statistical criteria. Time-resolved turbulence characteristics, such as autocorrelation and power spectrum, are also analyzed to verify ADCP capabilities to capture finer details of the turbulence in riverine environment. Practical guidelines for conducting ADCP measurements of this kind, within the general framework of flow-versus-instrumentation relationships, are finally discussed. It is hoped that the present discussion can guide users and manufacturers in addressing the current operational and instrument configuration limitations.
Details
- Title: Subtitle
- ADCP Measurements at Fixed River Locations
- Creators
- M MusteK. YuT PrattD Abraham
- Resource Type
- Conference proceeding
- Publication Details
- Hydraulic measurements and experimental methods, 2002 : proceedings of the specialty conference, July 28-August 1, 2002, Estes Park, Colorado
- Publisher
- American Society of Civil Engineers; Reston, Va.
- Language
- English
- Date published
- 2002
- Academic Unit
- Geographical and Sustainability Sciences; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984459630402771
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