Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
권호 표지
DOI QR코드

DOI QR Code

Estimating Nakdong Estuary Barrage outflow using upstream hydrograph

상류 수위를 활용한 낙동강 하구둑 유출량 추정

  • Shim, Kyuhyun (Korea Ocean Satellite Center, Korea Institute of Ocean Science and Technology) ;
  • Jung, Hahn Chul (Department of Earth System Sciences, Yonsei University) ;
  • Hwang, Do-hyun (Department of Earth System Sciences, Yonsei University) ;
  • Kim, Daesun (Ocean Policy Institute Center, Korea Institute of Ocean Science and Technology)
  • 심규현 (한국해양과학기술원 해양위성센터) ;
  • 정한철 (연세대학교 지구시스템과학과) ;
  • 황도현 (연세대학교 지구시스템과학과) ;
  • 김대선 (한국해양과학기술원 해양정책연구소)
  • Received : 2022.12.13
  • Accepted : 2023.01.11
  • Published : 2023.03.31
Download PDF
⟨ Previous Next ⟩

Abstract

The Nakdong Estuary Barrage is a tidal river environment where freshwater and seawater meet. This requires systematic monitoring of both surface water discharged from the estuary barrage and submarine groundwater discharge. In this study, upstream hydrograph and water balance analysis were used to calculate the change in water storage and discharge of the Nakdong Estuary Barrage. Submarine groundwater discharge was also calculated based on remote sensing-based digital elevation model data and hydrological modeling data, and compared with the estimated surface water discharge for analysis. Our proposed method can be efficiently applied to water resource management by utilizing remote sensing-based altimeter data other than field measurement. Because submarine groundwater discharge plays a significant role on the coastal environment as well as surface water discharge from an estuary barrage, studies on groundwatersurface water interactions in a river estuary should be sufficiently considered in monitoring the ecosystem of the Nakdong Estuary Barrage.

낙동강 하구둑은 담수와 해수가 만나는 감조하천 환경으로 하구둑에서 방류하는 지표수 유출량과 연안 해저 지하수 유출량에 대한 모니터링이 체계적으로 요구된다. 본 연구에서는 낙동강 하구둑 상류 지역에 위치한 수위자료와 물수지분석을 통하여 변화 저수량과 방류량을 계산하였다. 해저를 통한 육상에서의 지하수 유출도 원격탐사 기반 지형자료와 수문 모델링 자료를 근거로 산출하여 낙동강 하구둑 유출량과 비교 분석하였다. 제안된 방법은 현장 측정 이외의 원격탐사 기반 고도계 자료를 활용하여 수자원 관리에 효율적으로 적용할 수 있을 것으로 판단된다. 담수 지표수 유출량 뿐만 아니라 해저 지하수 유출이 연안에 미치는 영향이 크기 때문에, 낙동강 하구둑 생태계 모니터링에서 담수와 해수의 상호 관계에 대한 연구도 충분히 고려되어야 할 것으로 사료된다.

Keywords

Acknowledgement

이 논문은 2022년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2021R1A2C100578011)

References

  1. Bonnema, M., Sikder, S., Miao, Y., Chen, X., Hossain, F., Ara Pervin, I., Mahbubur Rahman, S.M., and Lee, H. (2016). "Understanding satellite-based monthly-to-seasonal reservoir outflow estimation as a function of hydrologic controls." Water Resources Reserarch, Vol. 52, pp. 4095-4115. https://doi.org/10.1002/2015WR017830
  2. Bourgault, D., and Matte, P. (2019). "A physically-based method for real-time monitoring of tidal river discharges from water level ovservations, with an application to the St. Lawrence River." Journal of Geophysical Research: Oceans, Vol. 125, 5.
  3. Camenen, B., Gratiot, N., Cohard, J. -A., Gard, F., Tran, V.Q., Nguyen, A.-T., Dramais, G., van Emmerik, T., and Nemery, J. (2020). "Monitoring discharge in a tidal river using water level observation: application to the Saigon River." Vietnam, Science of the Total Environment, Vol. 761, 143195.
  4. Doll, P., Fiedler, K., and Zhang, J. (2009). "Global-scale analysis of river flow alterations due to water withdrawals and reservoirs." Hydrology and Earth System Sciences Discussions, Vol. 13, pp. 2413-2432. https://doi.org/10.5194/hess-13-2413-2009
  5. Getirana, A., Jung, H.C., Hoek, J.V.D., and Ndehedehe, C.E. (2020). "Hydropower dam operation strongly controls Lake Victoria's freshwater storage variability." Science of the Total Environment, Vol. 726, 138343.
  6. Gwon, W.M. (2009). Hydrologic case study for efficient operation and management of Nakdong-River Estuary Barrage, Master Thesis, KyungNam University
  7. Han, S.Y., Hong, S.H., and Park, N. (2006). "Distribution of coastal ground water discharge from surficial aquifers of major river districts." KSCE Journal of Civil Engineering, Vol. 26, No. 1B, pp. 1-6.
  8. Jung, H.C., Getirana, A., Policelli, F., McNally, A., Arsenault, K.R., Kumar, S., Tadesse, T., and Pters-Lidard, C.D. (2017). "Upper Blue Nile basin water budget from a multi-model perspective." Journal of Hydrology, Vol. 555, pp. 535-546. https://doi.org/10.1016/j.jhydrol.2017.10.040
  9. Kim, D.S., and Jung, H.C. (2021). "The characteristics of submarine groundwater discharge in the coastal area of Nakdong River Basin." Korean Journal of Remote Sensing, Vol. 37, No. 6-1, pp. 1589-1597. https://doi.org/10.7780/KJRS.2021.37.6.1.8
  10. Kim, G., Ryu, J.W., Yang, H.S., and Yun, S.T. (2005). "Submarine groundwater discharge (SGD) into the yellow sea revealed by 228Ra and 226Ra isotopes: Implications for global silicate fluxes." Earth and Planetary Science Letters, Vol. 237, pp. 156-166. https://doi.org/10.1016/j.epsl.2005.06.011
  11. K-water (2015). Korea water resources corporation. pp. 46-47.
  12. Lee, H., Shum, C., Tseng, K.-H., Guo, J.-Y., and Kuo, C.-Y. (2011). "Present-day lake level variation from Envisat altimetry over the northeastern Qinghai-Tibetan Plateau: Links with precipitation and temperature." Terrestrial, Atmospheric and Oceanic Sciences, Vol. 22, pp. 169-175. https://doi.org/10.3319/TAO.2010.08.09.01(TibXS)
  13. Lim, S.P. (2010). A study on the hydraulic characteristic and sediment property in the Nakdong River Estuary. Master Thesis, Pukyong National University.
  14. Park, R.H., Yang, J.R., and Yoon, J.H. (2001). "Improvement of inflow calculation method in reservoir." Journal of Civil and Environmental Engineering Research, Vol. 21, No. 4, pp. 335-346.
  15. Park, S., Yoon, H.S., Lee, I.C., and Kim, H.T. (2008). "Correlation between mereorological factors and water discharge from the Nakdong River Barrage, Korea." Journal of the Korean Society of Marive Environment & Safety, Vol. 14, No. 2, pp. 111-117.
  16. Sawyer, A.H., Dabid, C.H., and Famiglietti, J.S. (2016). "Continental patterns of submarine groundwater discharge reveal coastal vulnerabilities." Science, Vol. 353, No. 6300, pp. 705-707. https://doi.org/10.1126/science.aag1058
  17. Shin, H.H., Hwang, M.H., Kang, S.U., and Lee, S.J. (2009). "Analysis on Hydraulic Characteristics in Nakdong Estuary Barrage." Proceedings of the Korea Water Resources Association Conference, KWRA, pp. 764-769.
  18. Yassin, F., Razavi, S., Elshamy, M., Davison, Sapriza-Azuri, B., G., and Wheater, H. (2019). "Representation and improved parameterization of reservoir operation in hydrological and landsurface models." Hydrology and Earth System Sciences, Vol. 23, pp. 3735-3764. https://doi.org/10.5194/hess-23-3735-2019
  19. Yoon, Y., Beighley, E., Lee, H., and Pavelsky, T. (2016). "Estimating flood discharges in reservoir-refulated river basins by integrating synthetic SWOT satellite observations and hydrologic modeling." Journal of Hydrologic Engineering, Vol. 21, No. 4, 05015030.
  20. Zhang, J., Xu, K., Yang, Y., Qi, L., Hayashi, S., and Watanabe, M. (2006). "Measuring water storage fluctuations in lake dongting, China, by topex/poseidon satellite altimetry." Environmental Monitoring and Assessment, Vol. 115, pp. 23-37. https://doi.org/10.1007/s10661-006-5233-9
  21. Zhou, Y.Q., Befus, K.M., Sawyer, A.H., and David, C.H. (2018). "Opportunities and challenges in computing fresh groundwater discharge to continental coastlines: A multimodel comparison for the United States Gulf and Atlantic Coasts." Water Resources Research, Vol. 54, pp. 8363-8380. https://doi.org/10.1029/2018WR023126