A Program to Provide Precursory Warnings for Rainfall-induced Landslides
Taiwan is a mountainous and alpine island which has more than 70％ of its land area occupied by hills and mountains. Every summer, Taiwan is frequently hit by typhoons which bring along heavy rains. As a result, slope failures are a common occurrence. Using historical landslide data and statistical analysis, this study developed a program to compute the shortterm and the long-term rainfall indices that can be used in the slope monitoring to provide oarly warnings of landslides. The program was tested on a past landslide at Houshanyue, and the results indicated a strong cause-effect relationship between Typhoon Siniaku and the slope failure in September of 2008. Since the program was verified with good predictability and virtually no false alerts, it is believed that the program can have wider applicability in the future offering the possibility to be integrated into a more comprehensive disaster warning system to suit the needs of a wide range of rainfall-induced disasters.
landslides Houshanyue rainfall intensity
Chong-Wu Lian Walter W. Chen Tung-Hung Su Men-Rong Jiang Tamkang University
Dept. of Civil Engineering/LiDAR Center for High Performance Visualization and Disaster Research Nat Center for Walter Resources Management and Policy Research New Taipei City, Taiwan ROC
国际会议
三峡
英文
494-497
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）