NDLI: Medium-scale natural disaster risk scenario analysis: a case study of Pingyang County, Wenzhou, China

Content Provider	Springer Nature Link
Author	Wang, Jun Chen, Zhenlou Xu, Shiyuan Hu, Beibei
Copyright Year	2013
Abstract	A series of empirical studies involving typhoon rainstorm and flood risk scenario analysis were carried out on a medium spatial scale, covering Pingyang County. Considering a rainstorm/water-logging conversion process, active flooding submergence and per unit area values (million yuan/km$^{2}$), two typical risk scenarios (50- and 100-year frequency) were simulated and analyzed. The study revealed that high-risk areas distributed across the towns of Aojiang, Qiancang and Xiaojiang, with a maximum submerged depth of 4.61 m for a 100-year flood hazard. In the case of a disaster loss rate >65 %, the potential maximum loss could be more than 10 million yuan/km$^{2}$. For medium-scale disaster risk, more attention must be paid to catastrophic events, which have a low probability of occurrence but would induce great losses. An amended risk formula could determine the degree of priority for responses to hazards of equal risk value better. In Pingyang County, the 50-year flood risk for Kunyang, Aojiang, Qiancang and Xiaojiang is greater than that of 100-year events for the next 50 years. However, these areas should give priority to their responses to 100-year disaster events during the next 100 years. In addition, the attention of disaster risk should vary in different spatial regions.
Starting Page	1205
Ending Page	1220
Page Count	16
File Format	PDF
ISSN	0921030X
Journal	Natural Hazards
Volume Number	66
Issue Number	2
e-ISSN	15730840
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-01-11
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Risk scenario Typhoon rainstorm–flood Medium scale Pingyang County Natural Hazards Hydrogeology Geophysics/Geodesy Geotechnical Engineering & Applied Earth Sciences Civil Engineering Environmental Management
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science Water Science and Technology

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