Flood hazard mitigation in land subsidence prone coastal areas by optimal groundwater pumping

Yin Lung Chang, Tung-Lin Tsai, Jinn-Chuang Yang

Research output: Contribution to journalArticlepeer-review

Abstract

Continuing land subsidence can aggravate flood hazard and diminish the effectiveness of existing flood mitigation systems. This paper presents a study of groundwater- pumping management for mitigating flood hazard in a subsidence infested area in the southwest coast of Taiwan. An optimal groundwater-pumping model is developed for preventing flood hazard from worsening and for satisfying the groundwater demand. In an area where the land is susceptible to pumping-induced subsidence, the study shows that proper long-term pumping strategy to manage spatial-temporal variation of future land subsidence should be an integral part of flood risk management as it can sustain the effectiveness of the flood mitigation measures.
Original languageEnglish
Article numberUNSP e12517
JournalJournal of Flood Risk Management
Volume12
DOIs
StatePublished - 30 Oct 2018

Keywords

  • INUNDATION; RISK

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