EFDC모형을 이용한 새만금호 내 해수유통량에 따른 오염물질 혼합 변화 모의
Simulations of Pollutant Mixing Regimes in Seamangeum Lake According to Seawater Exchange Rates Using the EFDC Model
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Abstract
The EFDC (Environmental Fluid Dynamics Code), a numerical model for simulating three-dimensional (3D) flow, transport, and biogeochemical processes in surface water systems including rivers, reservoirs, and estuaries, was applied to assess the effect of sea water and fresh water exchange rates (Qe) on the mixing characteristics of a conservative pollutant (tracer) induced from upstreams and salinity in Saemangeum Lake, Korea. The lake has been closed by a 33 km estuary embankment since last April of 2006, and now seawater enters the lake partially through two sluice gates (Sinsi and Garyuk), which is driving the changes of hydrodynamic and water quality properties of the lake. The EFDC was constructed and calibrated with surveyed bathymetry data and field data including water level, temperature, and salinity in 2008. The model showed good agreement with the field data and adequately replicated the spatial and temporal variations of the variables. The validated model was applied to simulated the tracer and salinity with two different gate operation scenarios: RUN-1 and RUN-2. RUN-1 is the case of real operation condition (Qe=25,000,000 m3) of 2008, while RUN-2 assumed full open of Sinsi gate to increase Qe by 120,000,000 m3. Statistical analysis of the simulation results indicate that mixing characteristics of pollutants from upstream can be significantly affected by the amount of Qe.
참고문헌 (13)
- Fisher, H. B., "Mixing in inland and coastal waters", pp.483~ (1979), Academic press
- Hamrick, J. M., "A three dimensional environmental fluid dynamics computer code: Theoretical and computational aspects. Special report, The college of William and Mary, Virginia institute of marine science" (1992), Glouceslter point
- Kim, H. K., "Model study on the change of tidal zone and flushing rate depending on the construction of sea dike. Master dissertation", Ewha womans National University, ~ (2004)
- Korea Rural Community Corporation, "Model study on water quality for the Saemangeum water area (Application and best management)", ~ (2005)
- Kim, W. J., "Hydraulic characteristic changes after the closing of Saemankeum sea-dike", Korea Rural Community Corporation, ~ (2008)
- Lee, H. W., "A three-dimensional modeling study of Saemangeum for water quality change", 박사, pp.2005
- Lee, J. W., "Water quality and SS modeling with EFDC (3D Dynamic Model) for Pyeongtaek reservoir", 석사, pp.2005
- Park, Y. J., "Hydraulic and water quality simulation of an estuarine reservoir considering drainage gate operations with seawater circulation", 박사, pp.2007
- Park, Y. W., "Water quality study for the Saemangeum reclaiming area(Ⅳ)", Korea Rural Community Corporation, ~ (2008)
- Sebnem, S. E., "Modeling of hydrodynamic circulation and cohesive sediment transport and prediction of shoreline erosion in Hartwell lake", 박사, Georgia institute of technology, pp.2004
- 서동일, "EFDC-Hydro와 WASP7.2 를 이용한 금강하류의 수리-수질 연계 모델링", 상하수도학회지, 23(1), pp.15~22 (2009), 대한상하수도학회
- Son, Y. G., "A Numerical simulation for salinity intrusion in Nakdong river estuary using EFDC", 박사, pp.2009
- Zhen, G. J., "Hydrodynamics and water quality, modeling rivers", lakes, and estuaries, ~ (2007)