• Title/Summary/Keyword: 댐 개발

Search Result 927, Processing Time 0.026 seconds

The Property Analysis of Water-Level Gauges used the Standard Test Facility of Water-Level Gauges (수위계 표준시험장치를 이용한 수위계 특성 분석)

  • Hong, Sung-Taek;Shin, Gang-Wook
    • Proceedings of the KIEE Conference
    • /
    • 2007.10a
    • /
    • pp.281-282
    • /
    • 2007

  • 댐 및 저수지 운영시 가장 중요한 센서 중의 하나인 수위계는 댐의 수문조작에 있어 직접적으로 연관되기 때문에 수위계의 특성이 잘 관리될 필요가 있다. 따라서 수위 측정에 널리 사용되고 있는 부자식, 초음파식, 그리고 레이다식 수위계에 대한 특성시험이 가능하도록 수위계 표준 시험장치를 개발하였고, 이를 이용하여 레이다식 수위계와 초음파식 수위계에 대하여 수위에 따른 특성시험을 실시하여 각 수위계에 대한 특성을 상호 비교 분석하고자 한다.

  • PDF

Development of Multiple Regression Models for the Prediction of Daily Ammonia Nitrogen Concentrations (일별 암모니아성 질소(NH3-N)농도 예측을 위한 다중회귀모형 개발)

  • Chug, Se-Woong
    • Journal of Korea Water Resources Association
    • /
    • v.36 no.6
    • /
    • pp.1047-1058
    • /
    • 2003

  • Seasonal occurrence of high ammonia nitrogen(NH3-N) concentrations has hampered chemical treatment processes of a water plant that intakes water at Buyeo site of Geum river. Thus it is often needed to quantify the effect of Daecheong Dam ouflow on the mitigation of $NH_3$-N contamination. In this study, multiple regression models were developed for forecasting daily $NH_3$-N concentrations using 8 years of water quality and dam outflow data, and verified with another 2 years of data set. During model development, the coefficients of determination($R^2$) and model efficiency($E_{m}$) were greater than 0.95. The verification results were also satisfactory although those statistical indices were slightly reduced to 0.84∼0.94 and 0.77∼0.93, respectively. The validated model was applied to assess the effect of different amounts of dam outflow on the reduction of $NH_3$-N concentrations in 2002. The NH3-N concentrations dropped by 0.332∼0.583 mg/L on average during January∼March as outflow increases from 5 to 50cms, and was most significant on February. The results of this research show that the multiple regression approach has potential for efficient cause and effect analysis between dam outflow and downstream water quality.

  • https://doi.org/10.3741/JKWRA.2003.36.6.1047 인용 PDF KSCI