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Evaluation of Ground-Truth Results of Radar Rainfall Depending on Rain-Gauge Data  

Kim, Byoung-Soo (고려대학교 사회환경시스템공학과)
Kim, Kyoung-Jun (고려대학교 사회환경시스템공학과)
Yoo, Chul-Sang (고려대학교 사회환경시스템공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.7, no.4, 2007 , pp. 19-29 More about this Journal
Abstract
This study compares various ground-truth designs of radar rainfall using rain-gauge data sets from Korea Meteorological Administration (KMA), AWS and Ministry of Construction and Transportation (MOCT). These Rain-gauge data sets and the Mt. Gwanak radar rainfall data for the same period were compared, and then the differences between two observed rainfall were evaluated with respect to the amount of bias. Additionally this study investigated possible differences in bias due to different storm characteristics. The application results showed no distinct differences between biases from three rain-gauge data sets, but some differences in their statistical characteristics. In overall, the design bias from MOCT was estimated to be the smallest among the three rain-gauge data sets. Among three storm events considered, the jangma with the highest spatial intermittency showed the smallest bias.
Keywords
radar rainfall; ground-truth; design bias; retrieval bias;
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Times Cited By KSCI : 1  (Citation Analysis)
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