Urban Hydrological Applications of Dual-Polarization X-Band Radar: Case Study in Korea
Publication: Journal of Hydrologic Engineering
Volume 22, Issue 5
Abstract
Quantitative precipitation estimation (QPE) for flash flood forecasting is one of the most commonly used applications of modern meteorological radars. The low-power low-cost small X-band dual-polarization radar system is gaining more interest for urban weather monitoring. This case study presents the installation and application of the first routinely operating dual-polarization X-band radar deployed by the Korea Institute of Civil Engineering and Building Technology (KICT) in South Korea. An overview of this KICT radar’s observations and attenuation correction is presented. The self-consistency criterion is used to examine the dual-polarization data quality. -based rainfall relations are developed to perform rainfall estimation. The field is robustly obtained using an adaptive estimation methodology. Cross comparisons between rainfall products from the KICT X-band dual-polarization radar, ground rain gauges, and traditional Korea Meteorological Administration (KMA) S-band radar are conducted to demonstrate the performance of this X-band radar for urban rainfall mapping.
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Acknowledgments
This study is supported by the Korea Institute of Civil Engineering and Building Technology (KICT) research fund (Development of Driving Environment Observation, Prediction and Safety Technology Based on Automotive Sensors). The rain gauge data are managed by Korea Meteorological Administration (KMA). The authors thank Dr. Jungho Kim from Korea University (now with Colorado State University) and anonymous reviewers for their insightful comments. The authors also thank Ryan Gooch for careful reading of this paper.
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Published In
Journal of Hydrologic Engineering
Volume 22 • Issue 5 • May 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Mar 9, 2015
Accepted: Apr 12, 2016
Published online: Jun 16, 2016
Discussion open until: Nov 16, 2016
Published in print: May 1, 2017
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