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Classification of the Core Climatic Region Established by the Entropy of Climate Elements - Focused on the Middle Part Region -  

Park, Hyun-Wook (Department of Geography, Chonnam National University)
Chung, Sung-Suk (Devision of Mathmatics and Statistical Informatics, Chonbuk National University)
Park, Keon-Yeong (Department of Atmospheric Science, Graduate School, Chosun University)
Publication Information
Journal of the Korean earth science society / v.27, no.2, 2006 , pp. 159-176 More about this Journal
Abstract
Geographic factors and mathmatical location of the Korean Peninsula have great influences on the variation patterns and appearances over a period of ten days of summer precipitation. In order to clarify the influence of several climate factors on precise climate classification in the middle part region of the Korea, weather entropy and the information ratio were calculated on the basis of information theory and of the data of 25 site observations. The data used for this study are the daily precipitation phenomenon over a period of ten days of summer during the recent thirteen years (1991-2003) at the 25 stations in the middle part region of the Korea. It is divided into four classes of no rain, $0.1{\sim}10.0mm/day,\;10.1{\sim}30.0mm/day$, 30.1mm over/day. Their temporal and spatial change were also analyzed. The results are as follows: the maximum and minimum value of calculated weather entropy are 1.870 bits at Chuncheon in the latter ten days of July and 0.960 bits at Ganghwa during mid September, respectively. And weather entropy in each observation sites tends to be larger in the beginning of August and smaller towards the end of September. The largest and smallest values of weather representative ness based on information ratio were observed at Chungju in the beginning of June and at Deagwallyeong towards the end of July. However, the largest values of weather representativeness came out during the middle or later part of September when 15 sites were adopted as the center of weather forecasting. The representative core region of weather forecasting and climate classification in the middle part region of the Korea are inside of the triangle region of the Buyeo, Incheon, and Gangneung.
Keywords
the middle part region; summer precipitation; information theory; weather entropy; information ratio; climatic region;
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Times Cited By KSCI : 1  (Citation Analysis)
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