This study performed heat wave vulnerability assessment in Busan using the IPCC Climate Change Vulnerability Assessment Framework which can be used as a baseline data for establishing effective countermeasures that mitigate the damage of the heat wave. This includes selection of the factors, estimation of the weights for the factors, aggregation of the factors to exposure, sensitivity, adaptive capacity, and finally to the vulnerability to heat wave.
The assessment also considers the climate change scenarios, RCP(Representative Concentration Pathway)4.5 and RCP8.5, to project the impact of climate change on heat wave by the years 2050 and 2100. The results show high spatial variability on the vulnerability in Busan and application of the climate change scenario raises the average vulnerability by 65% in maximum. To mitigate the damage, locally customized countermeasures, prepared by analyzing the factors for the assessment, and various short- and long-term plans, tied to the urban planning, are required