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Analysis of Precipitation Distribution in the region of Gangwon with Spatial Analysis (II): Analysis of Quantiles with Interested Durations and Return Periods  

Jeong, Chang-Sam (인덕대학 토목환경설계과)
Um, Myoung-Jin (연세대학교 대학원 토목공학과)
Heo, Jun-Haeng (연세대학교 공과대학 사회환경시스템공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.9, no.6, 2009 , pp. 99-109 More about this Journal
Abstract
In this study, often the spatial distribution of precipitation was analyzed using the quantile with regional frequency analysis and spatial analysis to find out the detail distribution of extreme precipitation for preventing the disaster in the region of Gangwon. The hourly precipitation data of 66 stations in Gangwon were used. As the results of regional frequency analysis, it shows that the generalized logistic (GLO) distribution is the best for the region of Gangwon. As the results of spatial analysis, the quaniles have high vaules nearby Seolakdong, Daegwallyeong and Cheongil as the duration of precipitation increase, and the change of spatial distribution occurs severely according to the duration of precipitation. The spatial characteristics of precipitation appears clearly as the return period of quantile increases. As the results of the spatial distribution of precipitation in Gangwon heavy quantiles usually are appeared in Yongdong, and the spatial distributions of quantile in Yongseo are various according to the duration and the return period of quantile. Therefore, to estimate more accurate quantiles in Gangwon, various geographical and weather conditions are considered additionally for the regional precipitation frequency analysis.
Keywords
quantile; regional frequency analysis; spatial analysis;
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Times Cited By KSCI : 1  (Citation Analysis)
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