Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지
DOI QR코드

DOI QR Code

Verification of Water Environment Network Representative at the Baekcheon Junction of the Nakdong River

낙동강 백천 합류부 지점의 물환경측정망 대표성 검증

  • Ahn, Jung Min (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Im, Teo Hyo (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Kim, Sung Min (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Kim, Shin (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Kim, Gyeong Hoon (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Kwon, Heon Gak (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Shin, Dongseok (National Institute of Environmental Research, Nakdong River Environment Research Center) ;
  • Yang, Deuk Seok (National Institute of Environmental Research, Nakdong River Environment Research Center)
  • 안정민 (국립환경과학원 낙동강물환경연구소) ;
  • 임태효 (국립환경과학원 낙동강물환경연구소) ;
  • 김성민 (국립환경과학원 낙동강물환경연구소) ;
  • 김신 (국립환경과학원 낙동강물환경연구소) ;
  • 김경훈 (국립환경과학원 낙동강물환경연구소) ;
  • 권헌각 (국립환경과학원 낙동강물환경연구소) ;
  • 신동석 (국립환경과학원 낙동강물환경연구소) ;
  • 양득석 (국립환경과학원 낙동강물환경연구소)
  • Received : 2017.12.05
  • Accepted : 2018.04.10
  • Published : 2018.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Multifunctional weirs constructed through the Four Major Rivers Restoration Project are operated as management water levels. The purpose of this study was to evaluate the effect of water level in the main stem on the tributary water level according to multifunctional weir operation, because the operation of multifunctional weirs for water level management influences the drainage of tributaries. In this study, water level pressure gauges were installed and spatial and temporal water quality was observed. The LOcally Weighted Scatterplot Smoothing (LOWESS) technique was applied to the Nakdong River and the Baekcheon Junction, both upstream of the Gangjeong-Goryeong weir, in order to analyze water quality trends. When considering the overall analysis and observations, it was found that the water quality forecasting point located at the Baekcheon estuary point should be transferred to the Dosung Bridge, which is located upstream of the Sunwon Bridge.

Keywords

References

  1. Cleveland, W. S., Devlin, S. J., 1988, Locally weighted regression: An approach to regression analysis by local fitting, Journal of the American Statistician Association, 83, 596-610. https://doi.org/10.1080/01621459.1988.10478639
  2. Daegu Regional Environmental Office, 2013, Water quality management plan in the Nakdong and Waegwan watershed.
  3. Davie, T., 2002, Fundamentals of hydrology, 2nd Ed. Routledge.
  4. Gyeongsangbuk-do, 2013, Baekcheon river maintenance basic plan.
  5. Helsel, D. R., Hirsch, R. M., 2002, Statistical methods in water resources techniques of water-resources investigations book 4, Chapter A3, U.S. Geological Survey, 226-230, 329-335.
  6. Kadlec, R. H., Wallace, S., 2009, Treatment wetlands, 2nd Ed. CRC Press.
  7. Kim, E. S., Lee, S. H., 2015, Hydraulic analysis using a two-dimensional model(II): Bridge backwater analysis, Journal of the Korea Acedemia-Industrial Cooperation Society, 16(8), 5716-5720. https://doi.org/10.5762/KAIS.2015.16.8.5716
  8. Kim, J., Kim, W., Kim, S. H., 2015, Discharge estimation at monitoring station affected by backwater effects in a junction, 2015 proceeding of Korea Water Resources Association, 393.
  9. Kim, S. Y., Kim, H. J., Yoon, K. S., 2015, Analysis of flood control effect by applying the connecting channel in estuary area including the confluence of two rivers, Journal of Korea Water Resources Association, 48(12), 1065-1075. https://doi.org/10.3741/JKWRA.2015.48.12.1065
  10. Lettenmaier, D. P, 1979, Dimensionality problems in water quality network design, Water Resource Research, 15(6), 1692-1700. https://doi.org/10.1029/WR015i006p01692
  11. Liebetrau, A. M., 1979, Water quality sampling: Some statistical consideration, Water Resource Research, 15(6), 1717-1725. https://doi.org/10.1029/WR015i006p01717
  12. Ministry of Agriculture and Forestry, 2004, Development of reservoir water level monitoring system.
  13. Ministry of Environment, 2017, Water environmental monitoring network operation plan.
  14. Ministry of Land, Infrastructure, and Transport, 2009, Nakdonggang river maintenance basic plan.
  15. Rodriguez-Murillo, J. C., Filella, M., 2015, Temporal evolution of organic carbon concentrations in Swiss lakes: Trends of allochthonous and autochthonous organic carbon. Science of the Total Environment 520, 13-22. https://doi.org/10.1016/j.scitotenv.2015.02.085
  16. Water Environment Information System, 2017, www.water.nier.go.kr
  17. Yang, D. S., Im, T. H., Lee, I., Jung, K. Y., Kim, G., Kwon, H. G., Yoo, J., Ahn, J. M., 2018, Pattern and trend of water level and water quality on the Namgang junction in the Nakdong River using hourly measuring time series data, J. Environ. Sci. Int, 27(1).