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http://dx.doi.org/10.12652/Ksce.2011.31.3B.265

The Correlation Between the Moving Average of Precipitation and Groundwater Level in Korea  

Yang, Jeong-Seok (국민대학교 건설시스템공학부)
Kim, Nam-Ki (국민대학교 건설시스템공학부)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.31, no.3B, 2011 , pp. 265-276 More about this Journal
Abstract
Precipitation data and groundwater level data were collected for Korean peninsular and Jeju island. The relationship between precipitation and groundwater level and the correlation between the moving average of precipitation and goundwater level were analyzed. Critical infiltration, which is the spatially averaged maximum daily infiltration depth over interested region, is considered when the precipitation data was modified for moving average process and correlation between the moving average of modified precipitation and groundwater level. High correlation regions, which have greater than 0.6 correlation coefficients, were selected after the analysis with ciritical infiltration. Twenty-six regions were selected for high correlation regions. If we divide the regions by administrative district, there are nine regions for Gyungsang-Do, five regions for Chunchung-Do, four regions for Gyunggi-Do and Gangwon-Do, three regions for Jolla-Do, and one region for Jeju island. The groundwater level data for high correlation regions shows obvious response after precipitation event and there are few cases with abrupt change in groundwater level without precipitation-related event.
Keywords
moving average of precipitation; groundwater level; critical infiltration; correlation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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