기상레이더 반사도 자료의 계층적 압축 기법
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 weathe...
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Published in | 멀티미디어학회논문지 Vol. 18; no. 7; pp. 793 - 805 |
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Main Authors | , , , |
Format | Journal Article |
Language | Korean |
Published |
한국멀티미디어학회
2015
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Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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Bibliography: | KISTI1.1003/JNL.JAKO201530848516098 G704-000883.2015.18.7.001 |
ISSN: | 1229-7771 2384-0102 |
DOI: | 10.9717/kmms.2015.18.7.793 |