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Effect of Climate Change on Water Quality in Seonakdong River Experimental Catchment

기후변화에 따른 서낙동강 시험유역에서의 수질영향 분석

  • 강지윤 (노아솔루션(주) 공공사업부) ;
  • 김정민 (인제대학교 환경공학과(낙동강유역환경연구센터)) ;
  • 김영도 (인제대학교 환경공학과(낙동강유역환경연구센터)) ;
  • 강부식 (단국대학교 토목환경공학과)
  • Received : 2013.01.27
  • Accepted : 2013.04.05
  • Published : 2013.04.15

Abstract

Recently, climate change causes climatic anomaly such as global warming, the typhoon and severe rain storm etc. and it brings damage frequently. Climate change and global warming are prevalent all over the world in this century and many researchers including hydrologists have studied on the climate change. In this study, Seonakdong river watershed in the Nakdong river basin was selected as a study area. Real-time monitoring system was used to draw the rating curves, which has 0.78 to 0.96 of $R^2$. To predict runoff change in Seonakdong river watershed caused by climate change, the change in hydrologic runoff were predicted using the watershed model, SWAT. As a result, the runoff from the Seonakdong river watershed was increased by up to 45 % in summer. Because of the non-point sources from the farmland and the urban area, the water quality will be affected by the climate change. In this study, the operating plan of the water gates in Seonakdong river will be suggested by considering the characteristics of the watershed runoff due to the climate change. The optimal watergate opening plan will solve the water pollution problems in the reservoir-like river.

Keywords

References

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  3. Effect of climate change on long-term river geometric variation in Andong Dam watershed, Korea vol.12, pp.3, 2021, https://doi.org/10.2166/wcc.2020.148