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http://dx.doi.org/10.3741/JKWRA.2013.46.2.99

Group Decision Making Approach to Flood Vulnerability Assessment  

Kim, Yeong Kyu (Korea Research Institute of Climate Countermeasure Strategies)
Chung, Eun-Sung (Department of Civil Engineering, Seoul National University of Science and Technology)
Lee, Kil Seong (Department of Civil & Environmental Engineering, Seoul National University)
Kim, Yeonjoo (Korea Environment Institute)
Publication Information
Journal of Korea Water Resources Association / v.46, no.2, 2013 , pp. 99-109 More about this Journal
Abstract
Increasing complexity of the basin environments makes it difficult for single decision maker to consider all relevant aspects of problem, and thus the uncertainty of decision making grows. This study attempts to develop an approach to quantify the spatial flood vulnerability of South Korea. Fuzzy TOPSIS is used to calculate individual preference by each group and then three GDM techniques (Borda count method, Condorcet method, and Copeland method) are used to integrate the individual preference. Finally, rankings from Fuzzy TOPSIS, TOPSIS, and GDM are compared with Spearman rank correlation, Kendall rank correlation, and Emond & Mason rank correlation. As a result, the rankings of some areas are dramatically changed by the use of GDM techniques. Because GDM technique in regional vulnerability assessment may cause a significant change in priorities, the model presented in this study should be considered for objective flood vulnerability assessment.
Keywords
flood vulnerability assessment; Fuzzy TOPSIS; group decision making; rank correlation analysis;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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