DOI QR코드

DOI QR Code

Estimation of Baseflow Discharge through Several Streams in Jeju Island, Korea

제주도 주요하천의 기저유출량 산정

  • Moon Duk-Chul (Jeju Provincial Water Resources Management Office) ;
  • Yang Sung-Kee (Department of Ocean Civil Engineering, Cheju National University) ;
  • Koh Gi-Won (Jeju Provincial Water Resources Management Office) ;
  • Park Won-Bae (Jeju Development Institute)
  • Published : 2005.04.01

Abstract

Groundwater in Jeju Island, flowing through main stream, is spring water from underground. To set a fixed quantity of groundwater flowing from surface in a hydrological view, 4 downstream (Woedo stream, Gangjung stream, Yeonwoe stream and Ongpo stream) were selected to calculate the characteristic of baseflow and the base-flow discharge through the data on tachometry. There were 11 to 14 level peak caused by runoff, mostly occurred during monsoon season. Also, duration of runoff was 15 to 25 hours, well reflecting the characteristic of inclined, short stream length in Jeju Island and pervious hydrogeographical feature. In case of Gangjung stream, Yeonwoe stream and Ongpo stream, variation of stream water level by baseflow rose above during summer, which was closely linked to the distribution of seasonal precipitation. From autumn to spring, water level fell below while that of Woedo stream remained the same all year round. Data on the water level observed in Woedo stream and Gangjung stream in every single minutes was applied to weir formula(equation of Oki and Govinda Rao) to calculate baseflow discharge. Also, using the data on current and water level calculated in Ongpo stream and Yeonwoe stream, water level-water flow rating was applied to assess base flow discharge.

Keywords

References

  1. 제주도, 1999, 제주의 물 . 용천수, 34-49pp
  2. 한 찬, 한정상, 1999, 3차원 지하수모델과 응용, 박영사, 799-867pp
  3. 민병형, 옥치율, 손인식, 김가현, 민일규, 서진호, 1999, 하천공학, 형설출판사, 104-105pp
  4. 김원만, 1996, 수리공식집, 건우사, 254-275pp
  5. 최영박, 2002, 현대수리학, 구미서관, 128-162pp
  6. 이대하, 고동찬, 박원배, 2002, $^3H/^3He 및 CFC-12를 이용한 제주도 지하수 연령측정 및 활용, 제10회 세계 물의날 기념 학술세미나 제주의 물 . 세계의 물 도민의 자산, 37-72pp
  7. 제주도, 2002, 제주도 수문지질 및 지하수자원종합조사(II), 182-242pp
  8. 제주도, 2003, 제주도 수문지질 및 지하수자원 종합조사(III), 11-83pp
  9. 정진영, 2002, 유량 측정자료의 불확실도 분석에 관한 연구(섬진강 유역을 중심으로), 수원대학교 대학원 석사학위 논문, 7-25pp
  10. Gardner, C. B., 1995, Streamflow, ground-water recharge and discharge, and characteristics of surficial deposits in buzzards bay basin, southeastern Massachusetts, USGS, 18pp
  11. Thomas, C. W., W. H. Judson, O. L. Franke and M. A. William, 1998, Ground water and surface water a single resource, USGS, 1-25pp
  12. Stephen, B. G., 1999, Ground-water Occurrence and contribution to streamflow, Northeast Maui, Hawaii, USGS, 29pp

Cited by

  1. Flood Discharge to Decision of Parameters in Han Stream Watershed vol.23, pp.4, 2014, https://doi.org/10.5322/JESI.2014.4.533