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A Quality Control Method for Broad-Beam HF Radar Current Velocity Measurements

Codar Ocean Sensors, 1914 Plymouth St., Mountain View, CA 94043, USA
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J. Mar. Sci. Eng. 2019, 7(4), 112; https://doi.org/10.3390/jmse7040112
Received: 6 March 2019 / Revised: 14 April 2019 / Accepted: 15 April 2019 / Published: 19 April 2019
(This article belongs to the Special Issue Radar Technology for Coastal Areas and Open Sea Monitoring)
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Abstract

This paper describes a method to provide quality control for radial velocity maps derived from radar echo voltage cross spectra measured by broad-beam high frequency radars. The method involves the comparison of voltage cross spectra measured at Doppler frequencies in the Bragg region with values predicted from basic equations defining the complex voltage cross spectra in terms of the measured antenna patterns and the radar cross section. Poor agreement at a given Doppler frequency indicates contamination of the spectra, usually due to interference; velocity results from that Doppler frequency are then eliminated. Examples are given of its application to broad-beam radars operating at four sites. View Full-Text
Keywords: current velocity measurement; high-frequency (HF) radar oceanography; remote sensing; quality control current velocity measurement; high-frequency (HF) radar oceanography; remote sensing; quality control
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Lipa, B.; Barrick, D.; Whelan, C. A Quality Control Method for Broad-Beam HF Radar Current Velocity Measurements. J. Mar. Sci. Eng. 2019, 7, 112.

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