Journal of Korean Society of Water Science and Technology (한국수처리학회지)

Korean Society of Water Science and Technology (한국수처리학회)
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A study on Spatiotemporal Variations of distribution characteristics in Artificial Rivers of the Brackish Water Zone

기수역 인공하천에서 시공간적 수질분포 특성 연구

  • Kim, Yoon-Jeong (Environmental Engineering, University of Seoul/K-water, Department of Environmental Research/National Institute of Environmental Research) ;
  • Choi, Ok Youn (Environmental Engineering, University of Seoul/K-water, Department of Environmental Research/National Institute of Environmental Research) ;
  • Han, Ihn-Sup (Environmental Engineering, University of Seoul/K-water, Department of Environmental Research/National Institute of Environmental Research)
  • 김윤정 (서울시립대학교 환경공학과/한국수자원공사) ;
  • 최옥연 (서울시립대학교 환경공학과/한국수자원공사) ;
  • 한인섭 (서울시립대학교 환경공학과/한국수자원공사)
  • Received : 2018.10.10
  • Accepted : 2018.12.24
  • Published : 2018.12.31
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Abstract

The purpose of this reaserch is to analyze the charateristics of water quality in space through the operation of ARA River in Artificial Rivers of the Brackish Water Zone. The spatial distribution measured water temperature and salt levels for the surface, middle and deep layers by dividing the four areas of Incheon, Sicheon, Gyeyang and Gimpo. Water temperature did not vary much by water depth and branch, and its purpose is to maintain stable water environment through correlation analysis and operation. To examine the temporal and spatial distribution patterns of the Arachon, we measured DO on the Incheon branch, Sicheon, Gyeyang and Gimpo branch twice a month, and on the surface, the temperature level, The water temperature did not vary much by depth and location, and the water temperature in January and March tended to rise from Incheon to Gimpo, with the average difference of 1.1 degrees during the same period. The salinity difference between Incheon and Gimpo sites was 3.3 psu deep and 5.4 psu deep. In particular, floodgates from July to September are found to be less than 10psu overall, which is considered to be a gas due to the effects of floods and the inflow of Gulpo Stream. D.O. is located in some areas due to summer rains. The hypoxic layer has been identified.Analysis of seasonal data shows that water temperature and DO are strongly correlated in autumn. It was found that the water temperature and salt levels in the fall showed a weak correlation.

Keywords

References

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