Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
권호 표지
DOI QR코드

DOI QR Code

Application of the GSSHA model for the long-term simulation of discharge and water quality at the Peace dam

평화의댐 장기 유출과 수질 모의를 위한 GSSHA 모형의 적용

  • Jang, Suk Hwan (Department of Civil Engineering, Daejin University) ;
  • Oh, Kyoung Doo (Department of Civil and Environmental Engineering, Korea Military Academy) ;
  • Jo, Jun Won (Department of Civil and Environmental Engineering, Daejin University)
  • 장석환 (대진대학교 건설시스템공학) ;
  • 오경두 (육군사관학교 토목환경학과) ;
  • 조준원 (대진대학교, 토목환경공학과)
  • Received : 2020.02.06
  • Accepted : 2020.03.20
  • Published : 2020.05.31
Download PDF
⟨ Previous Next ⟩

Abstract

It is usually not easy to simulate the hydrologic cycle or water quality for ungaged watersheds, especially for long-term simulation. In this paper we evaluated the applicability of GSSHA, a process-based distributed hydrologic model, for the long-term discharge and water quality simulation for the ungaged Peace dam watershed. From the comparative analysis of the simulated discharge and water quality series with measured ones, we concluded that with its overall fair performance on simulating hydrograph patterns of the peak discharges and base flows for major storms the GSSHA model showed some possibility to be used as a watershed model even with its overestimation of peak discharges for small storms and different trends of simulated water quality from measured ones for some periods.

미계측 유역의 수문순환이나 수질을 모의하는 것은 매우 어려운 것이 현실이며 특히 장기간에 걸쳐 모의를 해야 하는 경우에는 더욱 그러하다. 본 연구에서는 미계측 유역인 평화의댐 유역을 대상으로 물리적인 과정 기반의 분포형 수문 모형 GSSHA의 장기 유출과 수질 모의에 대한 적용성을 검토하였다. 분포형 유역 모형 GSSHA를 평화의댐 유역에 적용하여 유량과 수질 모의치를 실측치와 비교한 결과 소규모 호우로부터의 첨두유량을 과대하게 모의하거나 실측된 수질 자료와 일부 구간에서 다른 경향성을 보이는 등 일부 불일치하는 사항들이 나타났으나 모의된 주요 호우의 첨두유량과 기저유출의 전반적인 수문곡선 형태는 비교적 양호한 것으로 나타나 실무에서의 적용 가능성이 있는 것으로 판단하였다.

Keywords

References

  1. Chang, C.H., Kim, H.J., Noh, S.J., and Kim, C.G. (2005). "The water cycle analysis of Kyeongancheon-watershed by using GSSHA." proceedings of Korea Water Resources Association, KWRA, pp. 75-79.
  2. Chang, C.H., Kim, H.J., Noh, S.J., and Kim, C.G. (2006). "Longterm runoff simulation of Kyeongan-cheon watershed by using GSSHA." proceedings of Korean Society of Civil Engineers, KSCE, pp. 1064-1067.
  3. Chang, C.H., Kim, H.J., Kim, S.H., and Noh, S.J. (2007). "Simulation of soil moisture in hill-slope area using GSSHA model." proceedings of Korea Water Resources Association, KWRA, pp. 1614-1618.
  4. Chung, S.Y., Park, J.H., Hur, Y.T., and Jung, K.S. (2010). "Application of MPI technique for distributed rainfall-runoff model." Journal of Korea Water Resources Association, KWRA, Vol. 43, No. 8, pp. 747-755. https://doi.org/10.3741/JKWRA.2010.43.8.747
  5. Downer, C.W., and Ogden, F.L. (2004). "GSSHA: Model to simulate diverse stream flow producing processes." Journal of Hydrologic Engineering, ASCE, Vol. 9, No. 3, pp. 161-174. https://doi.org/10.1061/(ASCE)1084-0699(2004)9:3(161)
  6. Downer, C.W., and Ogden, F.L. (2006). Gridded surface subsurface hydrologic analysis (GSSHA) user's manual, ERDC/CHL SR-06-1, U.S. Army Corps of Engineers.
  7. Hur, Y.T., Park, G.Y., Park, J.H., and Kim, H.S. (2018). "Improvement of the long-term discharge simulation linked with K-DRUM and MODFLOW." Journal of Korean Society of Hazard Mitigation, KOSHAM, Vol. 18, No. 7, pp. 555-562. https://doi.org/10.9798/KOSHAM.2018.18.7.555
  8. Jun, B.H., Shin, H.S., Lee, J.C., and Yoon, Y.N. (1993). "Influence of the Peace-dam construction on the flood discharge and flood stage of the Hwachun dam." Journal of Korea Water Resources Association, KWRA, Vol. 26, No. 1, pp. 93-101.
  9. K-water Institute (2013). A study of water quality improvement and algae occurrence mitigation at the downstream reach considering to the Imnam dam of DMZ upstream and Soyangdam located in the north Hanriver.
  10. Kim, B.K., Kim, B.S., and Kwon, H.H. (2009). "Impact assessment of agricultural reservoir on streamflow simulation using semi-distributed hydrologic model." Journal of Korean Society of Civil Engineers, KSCE, Vol. 29, No. 1B, pp. 11-22.
  11. Kim, C.G., and Kim, N.W. (2004). "Assessment of forest vegetation effect on water balance in a waterehed." Journal of Korea Water Resources Association, KWRA, Vol. 37, No. 9, pp. 737-744. https://doi.org/10.3741/JKWRA.2004.37.9.737
  12. Kim, N.W., Lee, J.E., and Won, Y.S. (2005). "Application of SWAT model on Soyang dam basin." proceedings of Korea Water Resources Association, KWRA, pp. 628-632.
  13. Kim, W.J., Jung, C.G., Kim, J.U., and Kim, S.J. (2018). "Water shortage assessment by applying future climate change for boryeong dam using SWAT." Journal of Korea Water Resources Association, KWRA, Vol. 51, No. 12, pp. 1195-1205.
  14. Moriasi, D.N., Gitau, M.W., Pai, N., and Daggupati, P. (2015). "Hydrologic and water quality models: performance measures and evaluation criteria." Transactions of the ASABE, ASABE, Vol. 58, No. 6, pp. 1763-1785. https://doi.org/10.13031/trans.58.10715
  15. Park, J.H., and Hur, Y.T. (2009). "Flood runoff simulation using physical based distributed model for Imjin-River basin." Journal of Korea Water Resources Association, KWRA, Vol. 42, No. 1, pp. 51-60. https://doi.org/10.3741/JKWRA.2009.42.1.51
  16. Park, J.T., Jang, Y.J., and Seo, D.I. (2017). "Water quality prediction of inflow of the Yongdam Dam basin and its reservoir using SWAT and CE-QUAL-W2 models in series to climate change scenarios." Journal of Korea Water Resources Association, KWRA, Vol. 50, No. 10, pp. 703-714. https://doi.org/10.3741/JKWRA.2017.50.10.703
  17. Yoo, J.H., Park C.K., and Cho, H.S. (2001). "Identification of expanding the usability of the water resources in Hwacheon dam system due to the flood surcharging effects of Peace dam." Journal of Korea Water Resources Association, KWRA, Vol. 34, No. 6, pp. 617-625.