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Hierarchical Compression Technique for Reflectivity Data of Weather Radar
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Hierarchical Compression Technique for Reflectivity Data of Weather Radar
Jang, Bong-Joo; Lee, Keon-Haeng; Lim, Sanghun; Kwon, Ki-Ryong;
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Nowadays the amount of data obtained from advanced weather radars is growing to provide higher spatio-temporal resolution. Accordingly radar data compression is important to use limited network bandwidth and storage effectively. In this paper, we proposed a hierarchical compression method for weather radar data having high spatio-temporal resolution. The method is applied to radar reflectivity and evaluated in aspects of accuracy of quantitative rainfall intensity. The technique provides three compression levels from only 1 compressed stream for three radar user groups-signal processor, quality controller, weather analyst. Experimental results show that the method has maximum 13% and minimum 33% of compression rates, and outperforms 25% higher than general compression technique such as gzip.
Weather Radar;Compression;Reflectivity;Hierarchical Compression;
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이기종-다중 기상레이더 자료의 실시간 통합 모니터링 기법 연구,장봉주;이건행;임상훈;이동률;권기룡;

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