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Observed Exposure of Population and Gross Domestic Product to Extreme Precipitation Events in the Poyang Lake Basin, China

by 1,2,3, 2,3, 2,3, 2,3 and 1,*
1
Jiangxi Eco-meteorological Centre, Nanchang 330046, China
2
Institute for Disaster Risk Management (iDRM)/School of Geographical Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
3
National Climate Center, China Meteorological Administration, Beijing 100081, China
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(12), 817; https://doi.org/10.3390/atmos10120817
Received: 29 October 2019 / Revised: 29 November 2019 / Accepted: 13 December 2019 / Published: 16 December 2019
(This article belongs to the Section Meteorology)
Based on the observation data from the Poyang Lake Basin (China), an extreme precipitation event (EPE) is defined as that for which daily precipitation exceeded a threshold of 50 mm over a continuous area for a given time scale. By considering the spatiotemporal continuity of EPEs, the intensity–area–duration method is applied to study both the characteristics of EPEs and the population and gross domestic product (GDP) exposures. The main results are as follows. (1) During 1961–2014, the frequencies and the intensities of the EPEs are found to be increasing. (2) The annual area impacted by EPEs is determined as 7.4 × 104 km2 with a general upward trend of 400 km2/year. (3) The annually exposed population is estimated as 19% of the entire population of the Basin, increasing by 1.37 × 105/year. The annual exposure of GDP is 8.5% of the entire GDP of the Basin, increasing by 3.8 billion Yuan/year. The Poyang Lake Basin experiences serious extreme precipitation with increasing trends in frequency, intensity, and exposure (for both GDP and population). It is imperative that effective disaster prevention and reduction measures be adopted in this area to mitigate the effects of extreme precipitation. View Full-Text
Keywords: exposure; population and GDP; extreme precipitation events; Poyang Lake Basin exposure; population and GDP; extreme precipitation events; Poyang Lake Basin
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MDPI and ACS Style

Zhan, M.; Zhai, J.; Sun, H.; Li, X.; Xia, L. Observed Exposure of Population and Gross Domestic Product to Extreme Precipitation Events in the Poyang Lake Basin, China. Atmosphere 2019, 10, 817. https://doi.org/10.3390/atmos10120817

AMA Style

Zhan M, Zhai J, Sun H, Li X, Xia L. Observed Exposure of Population and Gross Domestic Product to Extreme Precipitation Events in the Poyang Lake Basin, China. Atmosphere. 2019; 10(12):817. https://doi.org/10.3390/atmos10120817

Chicago/Turabian Style

Zhan, Mingjin; Zhai, Jianqing; Sun, Hemin; Li, Xiucang; Xia, Lingjun. 2019. "Observed Exposure of Population and Gross Domestic Product to Extreme Precipitation Events in the Poyang Lake Basin, China" Atmosphere 10, no. 12: 817. https://doi.org/10.3390/atmos10120817

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