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Drought Vulnerability Assessment and Cluster Analysis of Island Areas Taking Korean Island Areas at Eup (Town) and Myeon (Subcounty) Levels as Study Targets

1
P&I HUMANKOREA-Research Institute, 167 Songpa-daero, Songpa-gu, Seoul 05855, Korea
2
Department of Environment Research, Korea Institute of Civil Engineering and Building Technology, Goyangdae-ro, Goyang-si 10223, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Albert Casas Ponsati and Rui Manuel Vitor Cortes
Water 2021, 13(24), 3657; https://doi.org/10.3390/w13243657
Received: 7 September 2021 / Revised: 29 November 2021 / Accepted: 1 December 2021 / Published: 20 December 2021
(This article belongs to the Section Water Resources Management, Policy and Governance)
The purpose of this study is to conduct drought vulnerability assessment and cluster analysis of Korean island areas at eup (town) myeon (subcounty) level. Drought vulnerability assessment was conducted using factor analysis and entropy method, and cluster analysis was analyzed using K-means, a nonhierarchical cluster analysis method. Vulnerability consisted of climate exposure, sensitivity, and adaptive capacity. Twenty-two indicators were used to evaluate and analyze vulnerability of drought in small island areas. The results of entropy method showed that winter rainfall, no rainfall days, agricultural population rate, cultivation area rate, water supply rate and groundwater capacity have a substantial impact on drought assessment. The overall assessment of vulnerability indicated that Seodo-myeon Ganghwa-gun, Seolcheon-myeon Namhae-gun, and Samsan-myeon Ganghwa-gun were most vulnerable to drought. The cluster analysis was evaluated by categorizing the regions into three clusters, and policy support and planning are needed to suit the characteristics of each cluster was observed. View Full-Text
Keywords: drought; vulnerability assessment; entropy; island; factor analysis; clustering drought; vulnerability assessment; entropy; island; factor analysis; clustering
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MDPI and ACS Style

Shim, I.; Kim, H.; Hong, B.; An, J.; Hwang, T. Drought Vulnerability Assessment and Cluster Analysis of Island Areas Taking Korean Island Areas at Eup (Town) and Myeon (Subcounty) Levels as Study Targets. Water 2021, 13, 3657. https://doi.org/10.3390/w13243657

AMA Style

Shim I, Kim H, Hong B, An J, Hwang T. Drought Vulnerability Assessment and Cluster Analysis of Island Areas Taking Korean Island Areas at Eup (Town) and Myeon (Subcounty) Levels as Study Targets. Water. 2021; 13(24):3657. https://doi.org/10.3390/w13243657

Chicago/Turabian Style

Shim, Intae, Heejin Kim, Bongchang Hong, Jusuk An, and Taemun Hwang. 2021. "Drought Vulnerability Assessment and Cluster Analysis of Island Areas Taking Korean Island Areas at Eup (Town) and Myeon (Subcounty) Levels as Study Targets" Water 13, no. 24: 3657. https://doi.org/10.3390/w13243657

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