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The Correlation between the Moving Average of Precipitation and Groundwater Level in Southern Regions of Korea  

Yang, Jeong-Seok (School of Civil and Environmental Engineering, Kookmin University)
Ahn, Tae-Yeon (School of Civil and Environmental Engineering, Kookmin University)
Publication Information
The Journal of Engineering Geology / v.18, no.4, 2008 , pp. 393-403 More about this Journal
Abstract
The relationship between precipitation and groundwater level and the correlation between the moving average of precipitation and goundwater level were analyzed for the southern area of Korean peninsular. There were somewhat different patterns of seasonal fluctuation of groundwater level data. The groundwater level data tends to decrease in dry spell and increase in wet spell however the range between maximum and minimum values is quite different for each gauging point. The maximum correlation coefficient for each gauging station is obtained in a range of 20- to 130-day moving average period of precipitation. The critical infiltration, which is the maximum daily infiltration averaged throughout watershed, value is turned out to have the range of 10 to 90 mm and the moving average period is 10 to 150 days. We could have stronger correlation when we consider critical infiltration and modify the original precipitation data than we use original precipitation data.
Keywords
moving average of precipitation; groundwater level; critical infiltration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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