The Journal of Engineering Geology (지질공학)

The Korean Society of Engineering Geology (대한지질공학회)
권호 표지
DOI QR코드

DOI QR Code

Baseflow Comparison using the WHAT system and Flow Rate Measurements in the Dry and Rainy Seasons

건기 및 우기 때의 WHAT system과 유량측정에 의한 기저유출량 비교

  • Nam, Koung-Hoon (Dept. of Earth and Environmental Sciences, Andong National University) ;
  • Kim, Gyoo-Bum (Geo-Water Research Center, K-water Research Institute) ;
  • Jeong, Gyo-Cheol (Dept. of Earth and Environmental Sciences, Andong National University)
  • 남경훈 (안동대학교 지구환경과학과) ;
  • 김규범 (한국수자원공사 K-water 연구원) ;
  • 정교철 (안동대학교 지구환경과학과)
  • Received : 2013.04.16
  • Accepted : 2013.06.14
  • Published : 2013.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

Flooding of riparian groundwater caused by changes in rainfall patterns has become a critical problem in areas of agricultural and arable land. Therefore, quantitative analysis of direct runoff and baseflow, which are the most important factors in determining the flow rate of a river, is required to clarify the flooding mechanisms of riparian groundwater. In this study, baseflow obtained using the WHAT system of hydrograph analysis based on Web GIS, and baseflow measured from direct runoff were quantitatively analyzed. Baseflow during the rainy season was 0.489 $m^3/s$ on 17 July 2012, 0.260 $m^3/s$ on 18 July 2012, and 0.279 $m^3/s$ on 19 July 2012, while that during the dry season was 0.006 $m^3/s$ on 6 March 2013 and 0.009 $m^3/s$ on 30 March 2013. The results show that an increase in baseflow occurred during the rainy season in the alluvial area of a riparian zone, and that the measurement error was less during the dry season than during the rainy season.

강우패턴의 변화에 의한 대하천변 지하수홍수발생은 농 경작지에서 큰 문제로 대두되고 있다. 따라서 대하천변의 지하수홍수 발생 메커니즘을 규명하기 위한 하천의 유량을 결정하는 가장 중요한 요소인 직접유출량과 기저유출량의 정량적인 해석이 필요하다. 이 연구에서는 수변구역에서 WHAT system이라는 Web GIS 기반의 수문분석 방법을 이용하여 산출된 기저유출량과 실제 하천에서 산출된 기저유출량을 정량적으로 비교분석 하였다. 연구지역의 기저유출량은 우기인 2012년 07월 17일에는 0.489 $m^3/s$, 2012년 07월 18일에는 0.260 $m^3/s$, 2012년 07월 19일에는 0.279 $m^3/s$이었고 건기였던 2013년 03월 06일에는 0.006 $m^3/s$, 2013년 03월 30일에는 0.009 $m^3/s$의 기저유출량이 산출되었다. 분석결과 수변구역 충적층 지역에서 강우 발생 시 기저유출량의 증가가 발생하였으며 건기 시 오차가 다소 적게 나타났다.

Keywords

References

  1. Arnold, J. G. and P. M. Allen, 1999, Validation of Automated Methods for Estimation Baseflow and Groundwater Recharge from Stream Flow Records, Journal of American Water Resources Association, 35(2), 411-424. https://doi.org/10.1111/j.1752-1688.1999.tb03599.x
  2. Eckhardt, K., 2005, How to Construct Recursive Digital Filters for Baseflow Separation, Hydrological Processes, 19(2), 507-515. https://doi.org/10.1002/hyp.5675
  3. Joo, S. W., Park, Y. S., Kim, J. G., Heo, S. G., Kim, K. S., Choi, J. D. and Lim, K. J., 2007, Estimation of BFImax value for Accurate Baseflow Separation using WHAT system, Inst. Agr. Sci., Kangwon Nat'l Univ., J. AGr. Sci., 18, 155-162 (in Korean).
  4. Kim, N. J. and Lee, H. K., 1964, Explanatory text of the geological map of Yongsan sheet (1:50,000), Geological Survey of Korea, 31p (in Korean).
  5. Lim, K. J., Engel, B. A., Tang, Z., Choi, J., Kim, K., Muthukrishnan, S., and Tripathy, D., 2005, Automated Web Gis-based Hydrograph Analysis Tool, WHAT, Journal of the American Water Resource Association, 41(6), 1407-1416. https://doi.org/10.1111/j.1752-1688.2005.tb03808.x
  6. Lim, K. J., 2006, Introduction of the Web GIS-based Hydrograph Analysis Tool for Evaluation of Hydrological Model Accuracy, Korean National Committee on Irrigation and Drainage, 13(2), 303-309 (in Korean).
  7. Ministry of Construction & Transportation, 2011, Water Vision 2020, 11p (in Korean).
  8. Ryu, J. C., Kang, H. W., and Lim, K. J., 2012, Introduction of Web GIS based baseflow separation program, Korea Water Resources Association, 45(2), 93-102 (in Korean).
  9. Yang, J, S. and Chi, D, K., 2011, Correlation Analysis between Groundwater Level and Baseflow in the Geum River Watershed, Calculated using the WHAT SYSTEM, The Journal of Engineering Geology, 21(4), 107-116. https://doi.org/10.9720/kseg.2011.21.2.107
  10. Yeongnam Crops Experiment Station & Institute of Agricultural Sciences Office of Rural Development, 1981, Detailed soil map (1:25,000), Changnyeonggun, 10p (in Korean).

Cited by

  1. Development of pre-treatment for the injection water into the aquifer storage and recovery(ASR) in Korea: The two-step rapid filter to reduce physical clogging and secure the volume of the injected water vol.29, pp.3, 2015, https://doi.org/10.11001/jksww.2015.29.3.337
  2. Quantifying Contribution of Direct Runoff and Baseflow to Rivers in Han River System, South Korea vol.48, pp.4, 2015, https://doi.org/10.3741/JKWRA.2015.48.4.309
  3. 토지이용 및 기후 예측자료를 활용한 미래 기저유출 분석 vol.61, pp.1, 2013, https://doi.org/10.5389/ksae.2019.61.1.045
  4. 산지계류에 있어서 홍수기의 강우사상에 대한 유출수문곡선 분리 및 특성 분석 vol.54, pp.1, 2013, https://doi.org/10.11614/ksl.2021.54.1.049