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An Analysis of the Temporal Pattern according to Hydrologic Characteristics of Short-Duration Rainfall  

Lee, Jung-Sik (금오공과대학교 토목환경공학부)
Shin, Chang-Dong (금오공과대학교 토목공학과)
Chang, Jin-Wook (금오공과대학교 토목공학과)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.6, no.3, 2006 , pp. 57-68 More about this Journal
Abstract
The objective of this study is to analyze the temporal pattern characteristic of short-duration rainfall defined as a rainfall durations of 6 hours or less by the Huff's 4th quartile distribution. To analyze the temporal pattern characteristic of short-duration rainfall, the rainfall data are classified by rainfall duration and rainfall type(Changma, Typhoon, Severe rain storm, Frontal storm) and change of rainfall segment. Also, the results of this study compared with result of research work of Korea Institute of Construction Technology(1989) and Ministry of Construction & Transportation(2000). The conclusions of this study are as follows; (1) Short-duration rainfall with duration of 6 hours or less is found to be most prevalent frist-quartile storms. (2) In the case of rainfall type, Changma and Severe rain storms and Frontal storm is found second-quartile storms, and Typhoon is found third-quartile storms. (3) In the result by change of sixth segment storms, the type of temporal pattern of rainfall is found to be most prevalent two sixth parts, (4) Comparative analysis of the results shows that shapes of the dimensionless cumulative curves and values are different from those of existing researches.
Keywords
temporal pattern of rainfall; short-duration rainfall; hydrologic characteristics; Huff's 4th quartile distribution;
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