Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
권호 표지
DOI QR코드

DOI QR Code

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
Download PDF
⟨ Previous Next ⟩

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

  1. Cannon, A.J. (2007) Nonlinear analog predictor analysis: A coupled neural network/analog model for climate downscaling, Neural Networks, 20(4), pp. 444-453. https://doi.org/10.1016/j.neunet.2007.04.002
  2. Choi, D.G., Kim, M.S., Kim, N.W., and Kim, S.D. (2009). An Analysis of the Effect of Climate Change on Byeongseong Stream's Hydrologic and Water Quality Responses Using CGCM's Future Climate Information. Journal of Korea Water Resources Association, 42(11), pp. 921-931. https://doi.org/10.3741/JKWRA.2009.42.11.921
  3. Choi, Y. (2002). Trends in daily precipitation events and their extremes in the southern region of Korea, Korea Soc. Environmental Impact Assessment, 11, pp. 189-203.
  4. Hwang J.Y. (2008) A Study on Water Quality Management of Seonakdong River Using Surface Water Quality Modeling, Master Dissertation , Inje University.
  5. Institu te of Health and Environment in Busan (2005). Survey of Water Quality and Flow for TMDL Management in Seonakdong River.
  6. IPCC ( 2007). Climate Change 2007: The Physical Science Basis, IPCC Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge University Press, Cambridge, United Kingdom and NewYork, NY, USA. NY, USA.
  7. Jeong, S.M., Seo, H.D., Kim, H.S., and Han, K.H. (2008). Sensitivity Assessment on Daecheong Dam Basin Streamflows According to the Change of Climate Components - Based on the 4th IPCC Report -. Journal of Korea Water Resources Association, 41(11), pp. 1095-1106. https://doi.org/10.3741/JKWRA.2008.41.11.1095
  8. Jung, J.H., Kim, D.I., Choi, H.G., and Han, K.Y. (2011), The Effect of Climate Change on Water Quality Analysis in a Dam River Basin. Journal of Korean Society of Environmental Impact Assessment, 20(2), pp. 107-121.
  9. Kang, D.H., Kim, J.M., Kim, T.W., and Kim, Y.D. (2012). Prediction of Continuous Discharge and Water Quality Change for Gate Operation in Seonakdong River Experimental Catchment Using SWAT, Journal of Wetlands Research, 14(1), pp. 21-33.
  10. Kim, J .M.. and Kim, Y.D. (2011) A Study on Estimation of Pollutant Loads in Seonakdong River Using SWAT-SWMM Model. Journal of Korean Society Water and Wastewater, 25(6), pp. 825-837.
  11. Lee, B .K., and Kang, B.S. (2008). Downscaling GCM Climate Change Output using Quantile Mapping and Artificial Neural Network. Annual Conference, Korean Society Civil Engineering, pp. 1603-1606.
  12. Lee, G .S., Kim, J.Y., Ahn, S.R., and Sim, J.M. (2010). Analysis of Suspended Solid of Andong and Imha Basin According to the Climate Change. Journal of geographic information studies, 13(1), pp. 1-15.
  13. Lee, N .J., Park, J.H., Kim, Y.D., and Son, B.J. (2005) Fundamental Study on Improving Water Quality of the Weat-Nakdong River By the Gates Operation, 2005 KSCE meeting, Korean Society of Civil Engineers, (CD-ROM).
  14. Park, J.Y., Park M.J., Ahn, S.R., and Kim, S.J. (2009). Watershed Modeling for Assessing Climate Change Impact on Stream Water Quality of Chungju Dam Watershed. Journal of Korea Water Resources Association, 42(10), pp. 877-889. https://doi.org/10.3741/JKWRA.2009.42.10.877
  15. Park, M.J., Shin, H.J., Park, G.A., and Kim, S.J. (2010). Assessment of future hydrological behavior of Soyanggang Dam watershed using SWAT. Journal of Civil Engineering, 30(4B), pp. 337-346.
  16. Rojas, R. (1996). Neural Netwroks, Springer-Verlag, Berlin.
  17. Seonak dong River Related Institute Cooperation (2005). Comprehensive countermeasures of Seonakdong River Water Quality improvement.
  18. Smithers, J.C. and Engel, B.A.. 1996. An initial assessment of SWAT as a hydrological modeling tool for the Midwest USA. ASAE, No. 96-2065.
  19. Ye, L. , Chung, S.W., .Lee, H.S, Yoon, S.W., and Jeong, H.Y. (2009). Sensitivity Analysis of Climate Factors on Runoff and Soil Losses in Daecheong Reservoir Watershed using SWAT. Journal of Water Environment, 25(1), pp. 7-17.

Cited by

  1. A Study on Dynamic Water Quality Change for Gate Operation in Seonakdong River vol.33, pp.4, 2013, https://doi.org/10.12652/Ksce.2013.33.4.1401
  2. Vertical Variation of Sediment Structure and Geochemical Characteristics of Core Sediment in Nakdong River Midstream vol.31, pp.3, 2015, https://doi.org/10.15681/KSWE.2015.31.3.304
  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