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KMID : 1024520030120040399
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Journal of the Environmental Sciences
2003 Volume.12 No. 4 p.399 ~ p.417
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The Weather Representativeness in Changma Period Established by the Weather Entropy and Information Ratio - Focused on Seoul, Taegu, Gwangju, Chungju, Puyo -
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Park Hyun-Wook
Moon Byung-Chae
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Abstract
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The seasonal variation and frequency of rainfalls of Korea peninsula in Changma period show strong local weather phenomenon because of it’s topographical and geographical factors in Northeast side of Asia. Based on weather entropy(statistical parameter)-the amount of average weather information-and information ratio, we can define each area’s weather representativeness, which can show us more constant form included topographical and geographical factors and seasonal variation. The data used for this study are the daily precipitation and cloudiness during the recent ten years(1990-1999) at the 73 stations in Korea. To synthesize weather Entropy, information ratio of decaying tendency and halfdecay distance, Seoul’s weather representativeness has the smallest in Summer Changma period. And Puyo has the largest value in September.
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KEYWORD
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Changma, Weather representativeness, Weather entropy, Information ratio, Information theory
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