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.

Abstract
1. 서 론
2. 자료 및 방법
3. 결과 및 고찰
    3.1. 관측 자료 분석
    3.2. 이동평균 강수량을 활용한 지하수위 분석
    3.3. 강수량과 지하수위 변동량 관계 분석
    3.4. 강수량과 전기전도도 변동량 관계 분석
4. 결 론
REFERENCES

• 조원기(부경대학교 지질환경연구소) | Won Gi Jo (Institute of Environmental Geosciences, Pukyong National University)
• 강동환(부경대학교 지질환경연구소) | Dong-hwan Kang (Institute of Environmental Geosciences, Pukyong National University) Corresponding author
• 박경덕(부경대학교 지질환경연구소) | Kyoung-deok Park (Institute of Environmental Geosciences, Pukyong National University)
• 김문수(국립환경과학원) | Moon-su Kim (National Institute of Environmental Research)
• 신인규(국립환경과학원) | In-Kyu Shin (National Institute of Environmental Research)