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Hydrogeologic Parameter Estimation by Using Tidal Method in a Fractured Rock Aquifer  

Shim Byoung Ohan (한국지질자원연구원 지하수지열연구부)
Chung Sang Yong (부경대학교 환경지질과학과)
Publication Information
Journal of Soil and Groundwater Environment / v.9, no.3, 2004 , pp. 27-32 More about this Journal
Abstract
The oceanic tides have an effect on groundwater levels in coastal fractured rock aquifers. The observed groundwater table fluctuations caused by the effective stress through an aquifer are shown as sine curves similar with tidal fluctuation. To estimate a hydrogeologic parameter, tidal method is utilized with groundwater level fluctuations of two monitoring wells. Cross correlation function is used to calculate time lags between observed groundwater levels and tide, and the deeper well shows longer time lag. The storage coefficients calculated by using tidal efficiency and time lag show large differences. The storage coefficients obtained by using time lags are close to the result of slug test, and that of the deeper well shows closer value by slug test. The tidal efficiency is unsatisfied to apply in the tidal method because of an effect of phreatic aquifer and the vertical flow of groundwater through fractured confining bed. This tidal method can be an economical and effective way to define the parameter by considering the location of observation well and hydrogeologic characteristics of a coastal aquifer.
Keywords
tidal method; storage coefficient; time lag; tidal efficiency; fractured rock aquifer;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Carr, P.A., and Van Der Kamp, G.S., Detennining aquifer characteristics by the tidal method, Water Resources Research, 5(5), pp. 1023-1031 (1969)   DOI
2 Ataie-Ashtiani, B., Volker, R.E., and Lockington, Tidal effects on sea water intrusion in unconfined aquifers, Journal of Hydrogeology, 216, pp. 17-31 (1999)   DOI   ScienceOn
3 심병완, 정상용, 김희준, 성익환, 수리동역학적 모델링에서 분산지수에 따른 해수침투 범위의 변화, 지하수토양환경, 7(4), pp. 1-9 (2002b)
4 Erskine, A.D., The effect of tidal fluctuation on a coastal aquifer in the UK, Ground Water, 29(4), pp. 556-562 (1991)   DOI
5 Reynolds, R.J., Diffusivity of a glacial-outwash aquifer by the floodwave- response technique, Ground Water, 25(3), pp. 290-299 (1987)   DOI   ScienceOn
6 Dominick, T.F., and Jr. Bert, W., Mathmatical model for beach groundwater fluctuations, Water Resources Research, 7(6), pp. 1626-1635 (1971)   DOI
7 한국수자원공사, 낙동강권역 광역 지하수조사 연구 (2000)
8 Nielsen, P., Tidal dynamics of the water table in beaches, Water Resources Research, 26(9), pp. 2127-2134 (1990)
9 김동학, 황재하, 박기화, 송교영, 1:250000부산지질도폭, 한국자원연구소 (1998)
10 부경대학교, 대연 전화국 연결 통신구 공사로 인한 부경대학교 시설물 피해영향조사 연구 (4/4) (1997)
11 Sun, H., A two-dimensional analytical solution of groundwater response to tidal loading in an estuary, Water Resources Research, 33(6), pp. 1429-1435 (1997)   DOI   ScienceOn
12 심병완, 부산 동남해안 지역의 수리동역학적 해수침투 특성 연구, 부경대학교 이학박사 학위논문 (2003)
13 Li, H., and Jiao, J.J., Analytical studies of groundwater-head fluctuation in a coastal confined aquifer overlain by a semipenneab1e layer with storage, Advances in Water Resources, 24, pp. 565-573 (2001)   DOI   ScienceOn
14 한국자원연구소, 지하수 염수침입 경로규명을 위한 현장관측 및 분석연구 (1999)
15 심병완, 정상용, 김희준, 성익환, 김병우, 지구물리탐사자료의 지구 통계학적 분석에 의한 부산 동남해안 지역의 해수침투 특성, 지하수토양환경, 7(3), pp.3-17 (2002a)
16 Ferris, J.G., Cyclic fluctuations of water level as a basis for detennining aquifer transmissibity, International Assoc. of Scientific Hydrology. Publ., 33, pp. 48-155 (1951)
17 Cho, B.W., Hydrogeological Characteristics of the Groundwater Resources in the Busall Area, Korea, Ph.D. dissertation, Kyungpook National Univ. (2001)