Journal of Environmental Impact Assessment (환경영향평가)

Korean Society of Environmental Impact Assessment (한국환경영향평가학회)
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Analysis of the Effects of Bathymetry Data on Hydraulic Results - Daecheong Reservoir -

저수지 모델의 지형정보 엽력자료가 수리결과에 미치는 영향 분석 - 대청호를 대상으로 -

  • Lee, Jae-Yil (Department of Urban Engineering, Chungbuk National University) ;
  • Seo, Se-Deok (Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
  • Ha, Sung-Ryong (Department of Urban Engineering, Chungbuk National University)
  • 이재일 (충북대학교 도시공학과) ;
  • 서세덕 (한국수자원공사 수자원연구원) ;
  • 하성룡 (충북대학교 도시공학과)
  • Received : 2009.06.13
  • Accepted : 2009.08.13
  • Published : 2009.08.31
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Abstract

A lot of research on the application of GIS has been conducted in the field of water quality management. The function of a geometric data acquisition for reservoir and river models, however, is not enough to satisfy multiuser' convenience. CE-QUAL-W2 is a two-dimensional(2D) longitudinal/vertical hydrodynamic and water quality model for surface water bodies, modeling eutrophication processes such as temperature-nutrient-algae and sediment relationships. The purpose of this study is to analyzing which bathymetry information affects hydraulic results. There are consisted of three scenarios under consideration. The first scenario takes into account only tribatary type data such as Heoin and Okchen river. The second scenario, Heoin river constructs to tributary and Okchen river constructs by branch. Last scenario constructs Heoin and Okchen river by branch. The RMSE error results for the first, second and third scenarios are 0.61, 0.36 and 0.28 respectively.

Keywords

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