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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

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.

Acknowledgement

Supported by : 국립환경과학원

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