Hwang, S.M.; Kim, Y.S.; Kim, J.Y.; Lee, H.Y.; Seo, K.H., and Kang, T.S., 2023. A study on the development of coastal disaster risk assessment. In: Lee, J.L.; Lee, H.; Min, B.I.; Chang, J.-I.; Cho, G.T.; Yoon, J.-S., and Lee, J. (eds.), Multidisciplinary Approaches to Coastal and Marine Management. Journal of Coastal Research, Special Issue No. 116, pp. 156-160. Charlotte (North Carolina), ISSN 0749-0208.

With the increasing likelihood of coastal disasters due to the impact of climate change, a system is needed to assessment the risks caused by coastal disasters in advance and support adaptation and response measures. The Intergovernmental Panel on Climate Change (IPCC) presented the need for a transition from vulnerability-based adaptation to risk management-based measures in the 5th Assessment Report (AR5) published in 2014. In addition, in the 6th report published in 2022, the concept of risk was expanded and the process of linking climate, human and ecosystem systems was presented. Accordingly, this study developed a coastal disaster risk assessment framework consisting of Hazard, Exposure and Vulnerability. Assessment considering the possibility of likelihood of hazards, which are external forces of natural phenomena that cause coastal disasters. For the assessment, the indicators suitable for the South Korea coast were reviewed, and weights obtained by expert survey were applied to each factor. In addition, by applying various risk assessment methods, the results of a pilot assessment of Jeju Island, which has relatively high damage from coastal disasters, are presented. Finally, the most reliable assessment method is identified by comparing the assessment results with the actual damaged area. The results of this study are expected to be used to establish reduction measures by calculating the risk level of coastal disasters to reflect the characteristics of coastal areas.