Journal of Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회논문집)

Korean Society of Coastal and Ocean Engineers (한국해안·해양공학회)
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Changes in Sea Water Characteristics Due to Operation of Shihwa Tidal Power Plant

조력발전소 가동에 따른 시화 해역의 해수특성 변화

  • Received : 2013.06.28
  • Accepted : 2013.08.28
  • Published : 2013.08.31
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Abstract

In order to investigate the changes in sea water characteristics and stratification due to operation of Shihwa tidal power plant, three dimensional numerical model is used. In summer, the density of inner part of Shihwa Lake is more affected by salinity than water temperature due to fresh water discharge. Before tidal power plant operation, the sea water characteristics in Shihwa Lake shows relatively high temperature and low salinity. After tidal power plant operation, water temperature decreases slightly and salinity tends to increase in Shihwa Lake. Also, density increases and stratification tends to weaken by mixing with sea water.

시화조력발전소 가동에 따른 인근 해역의 해수특성 및 성층변화를 파악하기 위하여 3차원 수치모델을 이용하였다. 여름철의 경우, 하천을 통해 유입되는 담수의 영향으로 인해 시화호 내측의 밀도는 수온보다는 염분에 의해 더 영향을 받는다. 조력발전소 가동 전에 호 내측에서는 외해에 비해 상대적으로 고온, 저염의 해수특성을 보이는 반면에 조력발전소 가동 시에는 호 내측의 수온이 소폭 낮아지고 염분이 증가하는 경향을 보인다. 또한 조력발전소 가동 시 해수의 유입 유출이 활발해짐에 따라 혼합효과의 증대로 인해 시화호의 밀도는 증가하고 성층은 약화되는 것으로 나타났다.

Keywords

References

  1. Choi, J.H., K.Y. Kim and D.A. Hong (2000). Impact of seawater inflow on the temperature and salinity in Shihwa lake. Jour. Korean Earth Science Society, v. 21, no. 5, pp. 541-552.
  2. Choi, H.Y., S.H. Lee and I.S. Oh (1998). Quantitative Analysis of Thermal Front in the Mid-eastern Coastal Area of the Yellow Sea, The Sea The Journal of the Korean Society of Oceanography, Vol.3, No.1, pp. 1-8.
  3. Dyer K. R. (1973). Estuary, a physical introduction. John Wiley, New York. pp 195.
  4. Hamrick. J.M. (1992). A three-dimensional environmental fluid dynamics computer code: theoretical and computational aspects. Special Report in Applied Marine Science and Ocean Engineering( SRAMSOE) No. 317, Virginia Institute of Marine Science( VIMS), VA.
  5. Jang, J.I., I.S. Han, K.T. Kim and K.T. Na (2011). Characteristics of water quality in the Shihwa and outer sea. Journal of the Korean Society of Marine Environment and Safety. Vol 17 No.2, pp. 105-121. https://doi.org/10.7837/kosomes.2011.17.2.105
  6. Kang, Y.S., Y.K. Chae and H.R. Lee (2011). Variation if density stratification due to fresh water discharge in the Kwangyang Bay and Jinju Bay. Journal of Korea Society of Costal and Ocean Engineers, 23(1), pp. 126-137. https://doi.org/10.9765/KSCOE.2011.23.1.126
  7. Kim, J.K., G.I. Kwak and J.H. Jeong (2008). Three-dimensional mixing characteristics in Seomjin river estuary. Journal of the korean Society for Marine Environmental Engineering, 11(3), pp. 164-174.
  8. Kim, T.I., H.R. Lee and K.I. Chang (2006). Seasonal variation of density stratification in the Saemangeum water, Korea Ocean and Polar Research, Vol. 28(3):339-352. https://doi.org/10.4217/OPR.2006.28.3.339
  9. Korea Meteorological Administration, Meteorological data. http:// www.kma.go.kr
  10. Korea Ocean Research Development Institute (1997). A study on environment changes in Shihwa Lake(1st). p. 169.
  11. Korea Water Resources Corporation (1998). Establish research the water quality control measures Shihwa lake. p. 130.
  12. Korea Water Resources Corporation (2005). Execution plan for construction of Shihwa tidal power plant.
  13. Kwon, S.J., T.S. Kang (2007). Numerical simulation for behavior tidal elevation and tidal currents in the South Sea. Journal of Korea Society of Costal and Ocean Engineers. 19(3), pp. 253-265.
  14. Lee, B.-G. and H.-D. Cho (1998). The spatial characteristics of stratification in Deukryang Bay, Korea. J. Kor. Environ. Sci. Soc., 7, 223-231.
  15. Lie, H.-J., S. Lee, S.-H. Cho, and C.-H. Kim (2002). Tidal front in the main tidal channel of Kyunggi Bay, eastern Yellow Sea. J. Kor. Soc. Oceanogr., 37, 10-19.
  16. Matsumoto, K., T. Takanezasa, and M. Ooe (2000). Ocean tide models developed by assimilating TOPEX/POSEIDON altimeter data into hydrodynamical model: a global model and a regional model around Japan, J. Oceanogr., 56, $567^{\circ}{\copyright}$581. https://doi.org/10.1023/A:1011157212596
  17. Ministry of Land, Transport and Maritime Affairs (2010). Shihwa Lake Marine Environment Improvement Project.
  18. National Fisheries Research and Development Institute, http://portal. nfrdi.re.kr
  19. Palacios-Hernandez, E., E. Beier, M.F. Lavin, and P. Ripa (2002). The effect of the seasonal variation of stratification on the circulation of the northern Gulf of California. J. Phys. Oceanogr., 32, 705-728. https://doi.org/10.1175/1520-0485(2002)032<0705:TEOTSV>2.0.CO;2
  20. Park, J.K., E.S. Kim, S.R. Cho, K.T. Kim and Y.C. Park (2003). Annual variation of water qualities in the Shihwa Lake. Ocean and Polar Research, Vol. 25(4):459-468. https://doi.org/10.4217/OPR.2003.25.4.459
  21. Park K., H.S. Jung, H.S. Kim and S.M. Ahn (2005). Three-dimensional hydrodynamic-eutrophication model(HEM-3D) : application to Kwang-Yang Bay, Korea. Marine Environmental Research, 171-193.
  22. Park, Y.C., J.K. Park, M.W. Han, S.K. Son, M.K. Kim and S.H. Huh (1997). Biogeochemical study of dissolver organic and inorganic compounds under oxic/anoxic environment in Lake Shihwa, $^{{\circ}{3}}The$ $Sea^{\circ}{1/4}$The Journal of the Korean Society of Oceanography, Vol.2, No.2, pp. 53-68.
  23. Rippeth, T.P., N.R. Fisher, and J.H. Simpson (2001). The cycle of turbulent dissipation in the presence of tidal straining. J. Phys. Oceanogr., 31, 2458-2471. https://doi.org/10.1175/1520-0485(2001)031<2458:TCOTDI>2.0.CO;2
  24. Simpson, J.H. and D. Bowers (1981). Models of stratification and frontal movement in the shelf seas. Deep-Sea Res., 28, 727-738. https://doi.org/10.1016/0198-0149(81)90132-1
  25. Simpson, J.H., J. Brown, J.P. Matthews, and G. Allen (1990). Tidal straining, density currents and stirring in the control of estuarine stratification. Estuaries, 13, 125-132. https://doi.org/10.2307/1351581
  26. Suh, S.W., H.Y. Lee and S.C. Yoo (2010). Simulation of water quality changes in the Saemangeum reservoir induced by dyke completion. Journal of Korea Society of Costal and Ocean Engineers, 22(4), pp. 258-271.
  27. Yoon, B.I. and S.B. Woo (2012). Numerical study on spring-neap variability of net volume transport at Yeomha channel in the Han River estuary. Journal of Korea Society of Costal and Ocean Engineers, 24(4), pp. 257-268. https://doi.org/10.9765/KSCOE.2012.24.4.257

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