Author(s): A. Despax; J. Le Coz; D. S. Mueller; G. Naudet; G. Pierrefeu; K. Delamarre; S. A. Moore; E. C. Jamieson
Linked Author(s): Jérôme Le Coz
Keywords: No Keywords
Abstract: The uncertainty of any Acoustic Doppler Current Profiler (ADCP) discharge measurement must be accounted for in order to enhance its value. Several propagation methods have been recently developed in order to estimate the uncertainty of ADCP measurements including QRev, QUant and OURSIN. However, it is a challenging task to assess what is the accuracy of the uncertainty estimates. A useful tool to empirically estimate the uncertainty is the repeated measures experiments. This study presents a comparison between propagation methods and empirical uncertainty estimates based on a large ADCP repeated measures experiment, gathering 48 teams that performed 574 six-transect discharge measurements. In the given field conditions for one large set of measurements, the comparison tends to validate OURSIN as a consistent method for computing the uncertainty of ADCP discharge measurements.
Year: 2020