Journal of the Geological Society of Korea (지질학회지)

The Geological Society of Korea (대한지질학회)
권호 표지

Identification of influences on groundwater fluctuations using spectrum analysis

스펙트럼 분석을 통한 지하수위 변동의 원인 규명

Lee, Bong-Ju;Mun, Sang-Ho;Jo, Byeong-Uk;Seong, Ik-Hwan;Lee, Cheol-U
이봉주;문상호;조병욱;성익환;이철우

  • Published : 20010600

⟨ Previous Next ⟩

Abstract

Groundwater levels were recorded during about 30-day period from April 27 till May 24, 2000 in two monitoring wells, PJW and PDW which are located in Dongnae hot spring area. Based on the recorded groundwater levels, we elucidated the cycle of groundwater level changes and their causes through spectrum analysis. Results from spectrum analysis indicate that the groundwater level recorded in the PJW well fluctuates with the periods of 170, 115, 25.8, 24, 12.4, and 12 hours. Among these fluctuation periods, fluctuations with 170-hour and 115-hour periods are attributed to the periodic heavy pumpage at Dongnae hot spring area. In addition, the 12.4-hour and 25.8-hour periods of groundwater level fluctuations in the PJW well coincide with the principal lunar-tidal components corresponding to the M2(12.4-hour period) and 0,(25.8-hour period) of tide, repectively, indicating that water level changes in the PJW welt are affected by tidal movement.

부산광역시 금정구 장전동의 신규 온천 개발공(PJW 관측공)과 동래구 온천동의 동래온천지구 중심부에 위치한 온천공(PDW 관측공)을 대상으로 2000년 4월 27일부터 5월 24일까지 약 30일간 수위변동을 관측하고, 이를 스펙트럼 분석하여 지하수위 변동의 주기성과 변동 원인을 규명하였다. PJW 관측공에서 관찰되는 지하수위 변동 주기는 170시간, 115시간, 25.8시간, 24시간, 12.4시간 그리고 12시간 등 6개 주기 성분으로 구성된다 이 중 170시간 및 115시간 주기는 PJW 관측공과 인접한 동래온천지구의 양수에 의한 영향인 것으로 확인되었다. 그러나, 25.8시간 및 12.4시간의 지하수위 변동 주기는 조석운동의 $O_1$ 성분 및 $M_2$ 성분과 일치하며, 이는 PJW 관측공의 지하수위가 조석변동 (tidal fluctuation)하고 있음을 지시한다.

Keywords

References

  1. 온양온천지구 온천수 자원조사 보고서. 한국자원연구소, 온천조사보고서 99-3(No. 266) 문상호;이철우;김형찬;염병우;기원서;이대하;김용제;김석중;성기성;이봉주;최순학
  2. 부산(장전)지구 온천공조사보고서. 한국자원연구소, 온천조사보고서 2000-5(No. 276) 문상호;이철우;성기성;고동찬;김연기;신현모;고인세
  3. 부산동래지구 온천부존량조사보고서. 온천조사보고서 92-6(No. 88) 임정웅;이동영;김연기;최영섭;염병우;이종민
  4. 이천(안흥)지구 온천공 영향평가 조사보고서. 한국자원연구소, 온천조사보고서 98-1(No. 259) 임정웅;이철우;배두종;문상호;이종철;이승구;성기성
  5. 한국지질도(1:50,000) 동래.월래 도폭 및 설명서 손치무;이상만;김영기;김상욱;김형식
  6. 부산 동래지역 지열수와 지하수의 수리지구 화학적 특성연구 한석종
  7. Journal of Geophysical Research v.72 Response of well-aquifer system to earth tides Bredehoeft, J.D.
  8. Statistics and data analysis in geology Davis, J.C.
  9. Internation Association of Science Hydrology Publications v.33 Cyclic fluctuations of water level as a basis for determining aquifer transmissibiligy Ferris, J.G.
  10. Groundwater Freeze, R.A.;Cherry, J.A.
  11. Water Resources Research v.27 The response of water level in a well to a time series of atmospheric loading under confined aquifer Furbish, D.J.
  12. Georgia, Groundwater v.4 An analysis of groundwater fluctuations caused by oceanic tides in Glynn County Gregg, D.O.
  13. Water Resources Research v.23 Determination of aquifer transmissivity from earth tide analysis Hsieh, P.A.;Bredehoeft, J.D.;Farr, J.M.
  14. Journal of Hydrology v.229 Use of hydrologic time series data for identification of recharge mechanism in a fractured bedrock aquifer system Lee, J.Y.;Lee, K.K.
  15. Introduction digital signal processing with computer application Lynn, P.A.;Fuerst, W.
  16. Water Resources Research v.11 Water level fluctruations due to earth tides in a well pumping slightly fractured crystalline rock Marine, I.W.
  17. Ground Water v.37 Estimatin transmissivity from water level fluctuations of a sinusoidally forced well Mehnert, E.;Valocchi, A.J.;Heidari, M.;Kapoor, S.G.;Kumar, P.
  18. Water Resources Research v.27 The estimation of fluid flow properties from the response of water level in wells to combined atmospheric and earth tide forces Ritzi, R.W.;Sorooshian, S.;Hsih, P.A.
  19. Journal of Geophysical Research v.76 Tides in confined well-aquifer systems Robinson, E.S.;Bell, R.T.
  20. Water Resources Research v.26 Response of water level in a well to earth tide and atmospheric loading under unconfined conditions Rojstaczer, S.;Riley, F.S.
  21. Hydrogeology Journal v.4 The effects of tides and waves on water-table elevations in coastal zones Turner, I.L.;Coates, B.P.;Acworth, R.I.