Articles | Volume 17, issue 3
https://doi.org/10.5194/nhess-17-335-2017
https://doi.org/10.5194/nhess-17-335-2017
Research article
 | 
08 Mar 2017
Research article |  | 08 Mar 2017

Development of a decision support system for tsunami evacuation: application to the Jiyang District of Sanya city in China

Jingming Hou, Ye Yuan, Peitao Wang, Zhiyuan Ren, and Xiaojuan Li

Abstract. Major tsunami disasters often cause great damage in the first few hours following an earthquake. The possible severity of such events requires preparations to prevent tsunami disasters or mitigate them. This paper is an attempt to develop a decision support system for rapid tsunami evacuation for local decision makers. Based on the numerical results database of tsunami disasters, this system can quickly obtain the tsunami inundation and travel time. Because numerical models are calculated in advance, this system can reduce decision-making time. Population distribution, as a vulnerability factor, was analyzed to identify areas of high risk for tsunami disasters. Combined with spatial data, this system can comprehensively analyze the dynamic and static evacuation process and identify problems that negatively impact evacuation, thus supporting the decision-making for tsunami evacuation in high-risk areas. When an earthquake and tsunami occur, this system can rapidly obtain the tsunami inundation and travel time and provide information to assist with tsunami evacuation operations.

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Short summary
This paper is an attempt to develop a rapid tsunami evacuation decision support system for local decision makers. Based on the numerical results database of tsunami disasters, this system can quickly obtain the tsunami inundation and travel time. When an earthquake and tsunami occur, this system can rapidly provide information to assist with the tsunami evacuation operations.
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