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The Variation Characteristics of Groundwater Level with Distance from Shoreline in the Jeju Island  

Kang, Dong-Hwan (Department of Environmental Geosciences, Pukyong National University)
Yang, Sung-Il (Department of Environmental Geosciences, Pukyong National University)
Kim, Tae-Yeong (Department of Environmental Geosciences, Pukyong National University)
Park, Hyun-Joo (Environmental Geology Team, Korea Rural Community & Agriculture Corporation)
Kwon, Byung-Hyuk (Department of Environmental Atmospheric Sciences, Pukyong National University)
Publication Information
The Journal of Engineering Geology / v.18, no.2, 2008 , pp. 167-176 More about this Journal
Abstract
The variation characteristics of groundwater level with distance from shoreline at Jeju Island was investigated using groundwater level data monitored from 257 wells for dry season (December 1998) and wet season (July 1997), respectively. Groundwater levels of the dry season were $7.46{\sim}203.8\;m$ with an average of 60.49 m, while those of the wet season were $4.01{\sim}204.10\;m$ with an average of 57.66 m. Groundwater level of the dry season was higher than that of the wet season, which was caused by heavy rains between June and October, 1998 at the Jeju Island. Correlation coefficients between altitude and groundwater level for dry and wet seasons were above 0.86, and those between dry season and wet season groundwater levels were very high above 0.95. 257 groundwater level data were classified at an interval of 500 m. Average values for altitude, groundwater levels and distance from shoreline were calculated for 17 intervals. Altitude and groundwater level fur dry and wet seasons at $0{\sim}4\;km$ intervals were increased with distance from shoreline, but those at $4{\sim}9\;km$ intervals were irregularity. Linear functions of the groundwater level for dry and wet seasons as distance from shoreline were estimated, and the coefficient of determinant at $0{\sim}4\;km$ interval data was higher than it at $0{\sim}9\;km$ interval data. Increasing rate of groundwater level at $0{\sim}4\;km$ intervals was more 2 times than it at $0{\sim}9\;km$ intervals. This results are caused by linear increase of groundwater level to 4 km from shoreline and by irregularity of groundwater level at the $4{\sim}9\;km$ intervals.
Keywords
Jeju Island; altitude; groundwater level; shoreline; distance;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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