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http://dx.doi.org/10.7780/kjrs.2020.36.2.1.9

Evaluating Vulnerability to Snowfall Disasters Using Entropy Method for Overlapping Distributions of Vulnerable Factors in Busan, Korea  

An, ChanJung (Atmospheric Science Major, Division of Earth Environmental System Science, Pukyong National University)
Park, Yongmi (Atmospheric Science Major, Division of Earth Environmental System Science, Pukyong National University)
Choi, Wonsik (Department of Environmental Atmospheric Sciences, Pukyong National University)
Publication Information
Korean Journal of Remote Sensing / v.36, no.2_1, 2020 , pp. 217-229 More about this Journal
Abstract
Recently, weather changes in Korea have intensified due to global warming, and the five major natural disasters that occur mostly include heavy rains, typhoons, storms, heavy snow, and earthquakes. Busan is vulnerable to snow disaster, given that the amount of natural disaster damage in Busan accounts for more than 50% of the total amount in the entire metropolitan cities in Korea, and that the Busan area includes many hilly mountains. In this study, we attempted to identify vulnerable areas for snowfall disasters in Busan areas using the geographic information system (GIS) with the data for both geographical and anthropogenic characteristics. We produced the maps of vulnerable areas for evaluating factors that include altitude, slope, land cover, road networks, and demographics, and overlapped those maps to rank the vulnerability to snowfall disasters as the 5th levels finally. To weight each evaluating factor, we used an entropy method. The riskiest areas are characterized by being located in mountainous areas with roads, including Sansung-ro in Geumjeong-gu, Mandeok tunnel in Buk-gu, Hwangnyeongsan-ro in Suyeong-gu, and others, where road restrictions were actually enforced due to snowfall events in the past. This method is simple and easy to be updated, and thus we think this methodology can be adapted to identify vulnerable areas for other environmental disasters.
Keywords
Busan; Snowfall damage; Vulnerable areas; Entropy method; GIS;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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