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Development of Analyzing Model of Groundwater Table Fluctuation(I): Theory of Model

지하수위 변동 해석모델 개발(I): 모델의 이론

  • Received : 2013.07.12
  • Accepted : 2013.09.25
  • Published : 2013.11.30

Abstract

In this study, a groundwater table fluctuation method is suggested to predict groundwater level by means of groundwater table fluctuation due to recharge and discharge under unsteady condition. This model analyzes groundwater variation characteristics by using reaction factor related with groundwater flow and specific yield related with recharge. For the test of this model, measured groundwater level at JD Yongdam 1 and JW Konghang for 5 years (2006-2010) were used. At JD Yongdam 1, the estimated specific yield was 0.023, and the estimated reaction factor was 0.039. At JW Konghang, the estimated specific yield was 0.009 and the estimated reaction factor was 0.028, respectively. This model can estimate recharge and saturated parameters, thus it is expected that this model would be the proper tool for checking the parameter of hydrologic model and percolation features.

본 연구에서 개발하고자 하는 지하수위 변동 해석모델은 지하수의 흐름과 관련된 반응계수 및 함양형태와 관련된 비산출율을 매개변수로 하여 부정류상태에서의 지하수위 변동특성을 해석한다. 모델의 시험적용을 위해 제주도 한천지역의 JD 용담1과 JW 공항지점의 5년(2006-2010)간의 지하수위 관측자료를 이용하였다. 매개변수 산정결과, JD 용담1지점에서는 비산출율 0.023, 반응계수 0.039로 추정되었고, JW 공항지점에서는 각각 0.009와 0.028로 추정되었다. 본 연구에서 개발한 모델을 이용하면, 지하수위에 의한 함양량 및 포화대에서의 매개변수를 추정할 수 있어 수문모형의 매개변수 및 비포화대에서의 침루특성을 확인하는 수단으로 활용되기를 기대한다.

Keywords

References

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