WASP/EUTRO5 모형을 이용한 영산호 수질에 대한 유입지류 영향의 평가에 관한 연구 = Impact Assessment of Inflowing Tributaries on Water Quality of Yongsan Lake Using WASP/EUTRO5 Model

다국어 초록 (Multilingual Abstract)

This study was performed to investigate significant reaction coefficients and assess the applicability of the WASP/ EUTRO5 model, which is commonly used for evaluation and prediction of lake and reservoir water quality, on Yongsan lake. Water quality impact of Yongsan river and Yongamcheon on Yongsan lake was studied by WASP/ EUTRO5 model. The major results of this study were as follows : 1. Sensitivity analysis showed that phytoplankton maximum growth rate(k₁c), phytoplankton oxygen to carbon ratio(aoc), deoxygenation rate at 20°C(kD), nitrification rate at 20°C(k₁₂) and dissolved organic phosphorus mineralization at 20°C(k83) played an important role in simulation of WASP/EUTRO5 model on the Yongsan lake. 2. k₁c, aoc, kD, k₁₂ and k83 were calibrated to be 2.5 day⁻¹, 2.67 mgO₂/ mgC, 0.055 day⁻¹, 0.05 day⁻¹, 0.22 day⁻¹ by trial error method using observed data. 3. Reliability index and integral square error, which evaluate the goodness of fit between observed data and simulated value, for calibration results were 1.35, 0.06 for DO, 1.73, 0.17 for BOD, 1.58, 0.08 for T-N, 2.48, 0.24 for T-P and for verification results were 1.25, 0.05 for DO, 1.49, 0.07 for BOD, 1.46, 0.07 for T-N, 1.89, 0.12 for T-P. 4. From the results of calibration and verification, it was found that application of the WASP/EUTRO5 model on Yongsan lake was possible. 5. Water quality impacts of Yongsan river and Yongamcheon on Yongsan lake were 9.79:1 for BOD, 6.75:1 for T-N, 24.52:1 for T-P.

목차 (Table of Contents)

• I. 서론 II. 연구방법 III. 결과 및 고찰 IV. 결론