Assessing the Intensity of the Population Affected by a Complex Natural Disaster Using Social Media Data

被引:21
作者
Cheng, Changxiu [1 ,2 ,3 ,4 ]
Zhang, Ting [1 ,2 ,3 ,4 ]
Su, Kai [1 ,2 ,3 ,4 ]
Gao, Peichao [1 ,2 ,3 ,4 ]
Shen, Shi [1 ,2 ,3 ,4 ]
机构
[1] Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China
[3] Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China
[4] Beijing Normal Univ, Ctr Geodata & Anal, Beijing 100875, Peoples R China
基金
中国国家自然科学基金;
关键词
social media; natural disasters; emergency response; affected people intensity; SOCIOECONOMIC VULNERABILITY; DATA-COLLECTION; INFORMATION; EXPOSURE; TWITTER; MODEL;
D O I
10.3390/ijgi8080358
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Complex natural disasters often cause people to suffer hardships, and they can cause a large number of casualties. A population that has been affected by a natural disaster is at high risk and desperately in need of help. Even with the timely assessment and knowledge of the degree that natural disasters affect populations, challenges arise during emergency response in the aftermath of a natural disaster. This paper proposes an approach to assessing the near-real-time intensity of the affected population using social media data. Because of its fatal impact on the Philippines, Typhoon Haiyan was selected as a case study. The results show that the normalized affected population index (NAPI) has a significant ability to indicate the affected population intensity. With the geographic information of disasters, more accurate and relevant disaster relief information can be extracted from social media data. The method proposed in this paper will benefit disaster relief operations and decision-making, which can be executed in a timely manner.
引用
收藏
页数:13
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