Open AccessFlood hazard mitigation in land subsidence prone coastal areas by optimal groundwater pumping
Author(s) -
Chang YinLung,
Tsai TungLin,
Yang JinnChuang
Publication year - 2019
Publication title -
journal of flood risk management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.049
H-Index - 36
ISSN - 1753-318X
DOI - 10.1111/jfr3.12517
Subject(s) - flood myth , groundwater , environmental science , hazard , subsidence , hydrology (agriculture) , water resource management , groundwater related subsidence , geology , geography , geotechnical engineering , geomorphology , structural basin , chemistry , archaeology , organic chemistry
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.