会议专题

A preliminary study of short-duration rainfall intensity in the central region of Taiwan

In recent years, more frequent extreme rainfall events have led to the uneven temporal-spatial rainfall distribution, which has resulted in the dramatic variation in rainfall intensity, rainfall frequency, and rainfall duration. After the 921 Earthquake in 1999, the hillside soil of Taiwan has been severely loosened. Any typhoon rainfall could triggering debris flows possibly. Therefore, the data of typhoon rainfall observed at 142 rainfall stations in the central region of Taiwan have been used in the hydrologic frequency analysis (according to typhoon rainfall intensity). Five analysis methods are adopted for this research, namely Normal Distribution, Logarithmic Normal Distribution,Extreme-Value TypelDistribution, Pearson Typclll Distribution,and Log-Pearson Typelll Distribution. This research also looks into the plotting rainfall isoline diagrams of debris flowprone streams and return period of rainfall duration in each area in central Taiwan . The influence of typhoon rainfall over the central region of Taiwan is analyzed in this research as well.

frequency analysis debris flow-prone streams rainfall characteristics

ZHAO YI-TING LEE Chin-Yu

Department of Soil and Water Conservation Pingtung University of Science and Technology 91201 Pingtung ,Taiwan

国际会议

2012 International Conference on Electric Technology and Civil Engineering(2012 电子技术与土木工程国际会议 ICETCE 2012)

三峡

英文

2933-2936

2012-05-18(万方平台首次上网日期,不代表论文的发表时间)