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KMID : 1024520210300070519
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Journal of the Environmental Sciences
2021 Volume.30 No. 7 p.519 ~ p.527
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Analysis of Precipitation Effects Using Groundwater Level and Electrical Conductivity Fluctuations
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Jo Won-Gi
Kang Dong-Hwan
Park Kyoung-Deok
Kim Moon-Su
Shin In-Kyu
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Abstract
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Moving average precipitation provides periodic precipitation patterns by solving precipitation irregularities. However, due to uncertain moving average periods, excessive data smoothing occurs, which limit the possibility to analyze groundwater levels in the short term. Nonetheless, groundwater level fluctuation can compensate these limitations as it can calculate appropriately for unit time and verify the effect of precipitation penetrated into groundwater in a short time period. In this study, the characteristics of groundwater level were evaluated using groundwater level fluctuation to compensate for limitations of groundwater level analysis using moving average precipitation. In addition, the groundwater quality was investigated using the electrical conductivity fluctuation. The study site was Hyogyo-ri, Yesan-si, Chungcheongnam-do. Four observation wells and an automated weather system were used. The correlation between groundwater level fluctuation and precipitation (Case 1) and the correlation between groundwater level and moving average precipitation (Case 3) were compared. In the analysis for 1 hour data, the correlation coefficient of Case 1 was higher than that of Case 3, and in the analysis for 1 day data, the correlation coefficient of Case 3 was higher than that of Case 1.
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KEYWORD
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Electrical conductivity, Fluctuation, Groundwater level, Moving average precipitation, Precipitation
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