| Title |
Assessment of Water Use Vulnerability Considering Climate and Socioeconomic Changes in Han River Watershed |
| Authors |
박혜선(Park, Hyesun) ; 김혜진(Kim, Heey Jin) ; 채여라(Chae, Yeora) ; 김연주(Kim, Yeonjoo) |
| DOI |
https://doi.org/10.12652/Ksce.2017.37.6.0965 |
| Keywords |
물이용 취약성;기후변화;사회경제변화 Water use vulnerability;Climate change;Socioeconomic change;TOPSIS |
| Abstract |
Assessment of vulnerability of water use to climate change include a variety of climate change scenarios. However, in most future vulnerability studies, only the climate change scenarios are used and not the future scenarios of social and economic indicators. Therefore, in this study, we applied the Representative Concentration Pathway (RCP) climate change scenario and Shared Socioeconomic reference Pathway (SSP) developed by IPCC to reflect the future. We selected indicators for estimating the vulnerability of water use, and indices were integrated with a multi-criteria decision making approach - Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The indicator data utilized national statistics and reports, social and economic scenarios, and simulated results from the Soil and Water Assessment Tool (SWAT) model which reflects climate change scenario. Finally, we derived the rankings of water use vulnerability for the short-term future (2020) and mid-term future (2050) within the Han River watershed. Generally, considering climate change alone and considering climate change plus social and economic changes showed a similar spatial distribution. In the future scenarios, the watershed rankings were similar, but showed differences with SSP scenario in some watersheds. Therefore, considering social and economic changes is expected to contribute to more effective responses to climate change. |