Levee overtopping risk assessment under climate change scenario in Kao-Ping river, Taiwan

Hsiao Ping Wei, Yuan Fong Su*, Chao Tzuen Cheng, Keh Chia Yeh

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

With the growing concern about the failure risk of river embankments in a rapidly changing climate, this study aims to quantify the overtopping probability of river embankment in Kao-Ping River basin in southern Taiwan. A water level simulation model is calibrated and validated with historical typhoon events and the calibrated model is further used to assess overtopping risk in the future under a climate change scenario. A dynamic downscaled projection dataset, provided by Meteorological Research Institute (MRI) has been further downscaled to 5-km grids and bias-corrected with a quantile mapping method, is used to simulate the water level of Kao-Ping River in the future. Our results highlighted that the overtopping risk of Kao-Ping River increased by a factor of 5.7~8.0 by the end of the 21st century.

Original languageEnglish
Article number4511
JournalSustainability (Switzerland)
Volume12
Issue number11
DOIs
StatePublished - 1 Jun 2020

Keywords

  • Climate change
  • Levee
  • Overtopping risk

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