Flooding Hazards and Risk Analysis in the Pearl River Delta, China
The Pearl River Delta (PRD) of southern China is known for its complex river networks and low lying terrain. The rapid population growth and economic development make this area vulnerable to flood events. This chapter briefly describes the flood hazards, assess their flood risk, and illustrate the local defense strategies and key infrastructures. The first section is a general introduction to the geographic feature and climatic setting. The second section illustrates the heavy precipitation, the river fluvial floods and the flood defense infrastructures in the Bei Jiang catchment. The third section describes the urban pluvial floods in Guangzhou, including the main urban flood types, storm features, drainage modeling, and flood hazards. The fourth section discusses storm surges and coastal floods, including flood types, storm surge flood hazards, a typical coastal flood defense in Zhongshan, and four extreme typhoon and storm surge events occurred in the 21st century. The last section is a summary. Overall, most cities in the PRD region are facing severe flood hazards under the protection of levees. More thorough and quantitative analyses are required to better understand the local specific flood hazards and risk.
KeywordsHeavy storms Storm surges Flood Risk analysis Pearl River Delta (PRD)
The research reported in this chapter was partially funded by the Water Resource Science and Technology Innovation Program of Guangdong Province, China (#2016-19). The edition from Dr. Xiaojun Yang greatly improves this chapter and is highly appreciated.
- ASFPM (2007) National flood policy challenges levees: the double-edged sword. ASFPM White Paper, 1–10. Online article. http://www.floods.org/. Accessed 30 Oct 2017
- Deng SY, Li Q, Yue MX (2014). Rammasun Guangdong losses of more than 13.1 billion. Nan Fang Daily, 2014-07-20001 (In Chinese)Google Scholar
- Feng W, Zhuang J, You D, Xu W (2013) A discussion on reasons for impact of over-estimated sea level rise on storm surge disaster forecasting of the Pearl River Estuary. Trop Geogr 33(5):640–645Google Scholar
- Guangzhou Bureau of Water Authority (GBWA) (2014) 2013 Guangzhou Water White Book. Online article. http://www.gzwater.gov.cn. Accessed 6 Oct 2017
- Guangdong Provincial Bureau of Beijiang River Basin Administration (GPB-BRBA) (2007) Online materials. http://www.gdbjdd.com.cn/. Accessed 12 Oct 2017
- United States Environmental Protection Agency (USEPA) (2009) Storm water management model applications manual, United States Environmental Protection Agency, Washington, DC, USAGoogle Scholar
- World Bank Group (WBG) (2015) World Bank report provides new data to help ensure urban growth benefits the poor, 26 Jan 2015Google Scholar
- Xing X, Ye J et al (eds) (2016) Guangdong Statistic Yearbook 2016. Online data downloaded on 10 Oct 2017 from http://www.gdstats.gov.cn/
- Yang L, Tian F, Smith JA, Hu H (2014) Urban signatures in the spatial clustering of summer heavy rainfall events over the Beijing metropolitan region. J Geophys Res 119:1203–1217Google Scholar