한국해안해양공학회지 (Journal of Korean Society of Coastal and Ocean Engineers)

한국해안·해양공학회 (Korean Society of Coastal and Ocean Engineers)
권호 표지

진해만의 3차원 수질 모델링

Three-Dimensional Water Quality Modeling of Chinhae Bay

  • 김차겸 (남해전문대학 토목환경과) ;
  • 이필용 (국립수산진흥원 환경관리과)
  • 발행 : 2000.03.01
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초록

해수유동 모델과 부영양화 모델로 구성된 3차원 생태계 모델을 수립하여 진해만에 적용하였으며, 해수유동 모델과 부영양화 모델은 동일한 격자상에서 운영된다. 수치계산결과를 관측경과와 비교하였으며, 그 결과 비교적 잘 일치하였다. 계산된 COD, DIN 및 DIP의 농도는 오폐수의 과다유입과 식물성 플랑크톤의 생산에 의해 진해만의 북부 지역(마산만)에서 높게 나타났다. 저층에서 저산소 및 무산소 수괴는 오폐수의 유입량이 많고 성층이 강하게 형성되는 진해만의 북부해역과 성층형성과 양식장이 밀집되어 있는 진해만의 서부 내만에서 발생하고 있다. DO 농도의 등분포선은 만 입구로부터 DO 공급과 물리적 작용에 의해 만 입구에서 만 내로 DO의 수송으로 인해 만의 입구와 평행하게 나타났다. 저층 저산소 수괴의 형성에 물리적, 생화학적 과정이 대단히 중요한 역할을 하며, 이 중에서 해수의 수평적·연직적 확산에 의한 물리적 작용이 제일 중요한 요소인 것으로 판단된다.

A three-dimensional hydrodynamic-ecosystem model was developed and applied to Chinhae Bay which is located in the southeastern sea of Korea. The model includes a three-dimensional hydrodynamic model and an eutrophication model, and the model operates on the same grid system. The agreement between predicted and measured results is reasonably encouraging. The concentrations of the calculated COD, DIN and DIP are appeared to be very high due to the phytoplankton production and the wastewater input in the northern part of Chinhae Bay. Anoxic and hypoxic water masses in the bottom layer occur in the northern part of the bay due to the excess loading of wastewater and strong stratification, and in the western inner part of the bay due to high oxygen consumption in densely populated aquaculturing facilities. DO concentration contours show parallel to the bay entrance line, which means the importance of supplying DO by physical process from the mouth of the bay. Although both the hydrodynamic and biochemical processes play important role to form the hypoxic waters in the bottom of the inner bay, it is suggested that the hydrodynamic conditions such as the vertical and the horizontal eddy diffusivity are primarily important factors.

키워드

참고문헌

  1. Ecological Modelling v.65 no.1 A dynamic model describing the seasonal variation in growth and distribution of eelgrass. Ⅰ.Model Theory Bach. H.K.
  2. Cont. Shelf Res. v.7 Evaluation of the Ems estuary ecosystem model Baretta, J.W.;Ruardij, P.
  3. J. Envir. Engrg. v.119 no.6 Three-dimensional eutrophication model of Chesapeake Bay Cerco, C.F.;Cole, T.
  4. J. Envir. Engrg. v.121 Simulation of long-term trends in Chesapeake Bay eutrophication Cerco, C.F.
  5. J. Korean Society of Coastal and Ocean Engrg. v.11 no.1 Water quality modeling for environmental management in Chinhae Masan Bay Cho, H.Y.;Chae, J.W.
  6. Marine Science and Technologics. MAST Days and Euromar Market, Vol. 1. v.1 An overview of the European Regional Seas Ecosystem Model(ERSEM) ERSEM;K.-G. Barthel(ed.);M. Bohle-Carbonell(ed.);C. Fragakis(ed.);M. Weydert(ed.)
  7. Bulletin of National Fisheries Research Development and Agency Studies on oxygen-deficient water mass in Chinhae Bay Lee, P.Y.;Park. J.S.;Kang, C.M.;Choi, H.G.;Park, J.S.
  8. J. Envir. Engrg. v.121 Water quality modeling of upper Mississippi River and Lake Pepin Lung, W.S.;Larson, C.E.
  9. Proc. 1992 Int. Oceans Space and Resources Utilization Seminar and 29th Ocean Engrg. Res. Workshop. On the development of water quality prediction model for enclosed seas Kang, S.W.;Lee, J.C.
  10. J. Oceanol. Soc. Korea. v.29 Three-dimensional numerical model experiments of tidal and wind-driven currents in Chinhae Bay Kim, C.
  11. J. Korean Society of Coastal and Ocean Engrg. v.9 no.2 A shallow water front and water quality in Chinhae Bay Kim. C.
  12. Coastal Engrg. v.23 A three-dimensional PC-based hydrodynamic model using an ADI scheme Kim, C.;Lee, J.
  13. Hydrographical tables Knudsen, M.
  14. Development of coastal water quality assessment and prediction technology KORDI
  15. J. Adv. Mar. Tech Soci. v.8 Ecosystem model; its formulation and estimation method for unknown rate parameters Nakata, K.
  16. Study on the phenomena of coastal eutrophication and red tide NFRDA.
  17. Proc. 2nd Int. Conf. on Estuarine and Coastal Modeling Circulation modeling and water quality prediction Vested, H.J.;Jensen, O.K.;Ellegaard, A.C;Bach, H.K.;Rasmussen, E.K.