Runoff peak under climate change and associated flood management in Taiwan

Lung Sheng Hsieh, Jiun Huei Jang, Ching Pin Tung, Wen Cheng Liu

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Under climate change, extreme conditions of precipitation and river runoff are more likely to occur. By means of GCM (Global Climate Model) downscaling and runoff simulation, this study evaluates the changes of precipitation and runoff peak under 21 IPCC (Intergovernmental Panel on Climate Change) climate change scenarios for five basins in Taiwan. The simulations show that, by the end of the century, runoff peaks will be over 30% larger than the design capacity of current flood control systems. The change of runoff peak is much larger than that of precipitation, implying that runoff-induced flooding will be more easily triggered by precipitation increase in the future. A "Special Act for Flood Management", aimed to systematically harness all county/city rivers in the country by both structural and non-structural measures, was enforced in 2006. Though the project is still undergoing, it has preliminarily succeeded in reducing flood disasters triggered by extreme weather conditions in recent years. The methodology provided in this study can be served for further simulation on assessing project effectiveness against climate change.

原文English
頁(從 - 到)245-252
頁數8
期刊Journal of the Chinese Institute of Civil and Hydraulic Engineering
24
發行號3
出版狀態Published - 2012 9月

All Science Journal Classification (ASJC) codes

  • 土木與結構工程

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