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KMID : 1024520180270060371
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Journal of the Environmental Sciences
2018 Volume.27 No. 6 p.371 ~ p.381
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Verification of Water Environment Network Representative at the Baekcheon Junction of the Nakdong River
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Ahn Jung-Min
Im Tae-Hyo
Kim Sung-Min
Kim Shin
Kim Gyeong-Hoon
Kwon Hun-Gak
Shin Dong-Seok
Yang Duk-Seok
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Abstract
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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.
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KEYWORD
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Water Level, Water Quality, LOWESS, Tributary drainage, Baekcheon
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