Conference proceeding
Methodology for Estimating ADCP Measurement Uncertainty in Open-Channel Flows
Critical transitions in water and environmental resources management : proceedings of the 2004 World Water and Environmental Resources Congress : June 27-July 1, 2004, Salt Lake City, UT, pp.1-13
2004
DOI: 10.1061/9780784407370
Abstract
Acoustic Current Doppler Profilers (ADCPs) are most often used for measuring discharge in channels and rivers. Recently, ADCPs have become increasingly used for measuring the cross-sectional distribution of the long-term average streamwise velocity and for estimating turbulence characteristics for studies that range from calibration of hydraulic structure ratings to verification and validation of hydrodynamic models for ecological restoration. In spite of the ADCP expanding applications, the rigorous assessment of ADCP measurement uncertainty is not yet available. In this paper, we present a methodology for the assessment of uncertainty of ADCP discharge and mean velocity measurements recommended by authoritative guides and standards. The method includes identification and assessment of the elemental error sources involved in the ADCP measurement process and a first-order Taylor approximation-based algorithm for propagating elemental uncertainties to final results. The paper describes the framework and the practical implementation of the method for estimating the total uncertainty of the ADCP discharge and mean velocity measurements in riverine environments.
Details
- Title: Subtitle
- Methodology for Estimating ADCP Measurement Uncertainty in Open-Channel Flows
- Creators
- M MusteK YuJ Gonzalez-CastroM AnsarR Startzman
- Resource Type
- Conference proceeding
- Publication Details
- Critical transitions in water and environmental resources management : proceedings of the 2004 World Water and Environmental Resources Congress : June 27-July 1, 2004, Salt Lake City, UT, pp.1-13
- Publisher
- American Society of Civil Engineers; Reston, VA.
- DOI
- 10.1061/9780784407370
- Language
- English
- Date published
- 2004
- Academic Unit
- Geographical and Sustainability Sciences; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984460330202771
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