Simulation of physical and socioeconomic factors of vulnerability to cyclones and storm surges using GIS: a case study

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• 作者：Md. Nazir Hossain ; Shitangsu Kumar Paul
• 关键词：Cyclones ; Storm surges ; Vulnerability ; GIS ; Simulation ; Physical factors ; Socioeconomic factors
• 刊名：GeoJournal
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：82
• 期：1
• 页码：23-41
• 全文大小：
• 刊物类别：Earth and Environmental Science
• 刊物主题：Human Geography; Geography, general; Environmental Management;
• 出版者：Springer Netherlands
• ISSN：1572-9893
• 卷排序：82

文摘

The objective of the present study is to simulate the physical and socioeconomic factors of human vulnerability to tropical cyclones and storm surges at the household level in existing and changing status of households. The primary data were collected from a cyclone prone coastal area in Bangladesh, through structured questionnaire and GPS survey, key informants interviews and field observations. In order to simulate the physical and socioeconomic factors geographical information systems based Structured Query Language (SQL) query has been used. The study simulated the physical and socioeconomic factors of human vulnerability to tropical cyclones and storm surges on the basis of collected data through pre-designed SQL query. The study found the number of most vulnerable households under existing conditions and how much it will be afterward of a favourable or adverse change of the factors of vulnerability associated with households. The major findings of the study unveil that the socioeconomic and physical factors of human vulnerability have important function to determine the household’s level of vulnerability to the cyclone induced disaster. It has been demonstrated that the degree of vulnerability of households is changed with its physical and socioeconomic status. This study provides a conceptual model for assessing and simulating vulnerability to other natural hazards like floods, droughts, riverbank erosions and so forth. This study highlights that the households’ intrinsic vulnerable conditions are responsible for its defencelessness to the hazards and the reduction of vulnerability is the first measure of integrated and sustainable disaster management in the coastal Bangladesh.