烏溪江流域自動(dòng)洪水預(yù)報(bào)系統(tǒng)研究與應(yīng)用
[Abstract]:Because of the limitation of forecasting model and the imperfection of real time information, there are some errors in flood forecasting process. The accuracy of flood forecast can be improved by the combination of automatic forecasting model and interactive modification of artificial forecasting parameters. In the study of automatic flood forecasting system in Wuxi River Basin, the runoff coefficient is used to control the total amount of rainfall loss in the preceding period, and the runoff production is calculated by adjusting the rainfall loss. According to the rainfall center and the rainfall intensity, the unit line is selected to calculate the runoff concentration. At the same time, based on the automatic flood forecast, the real-time flood forecast with high accuracy and real time correction can be completed with the experience of the forecaster for many years. Taking typical flood forecast as an example, the accuracy of interactive modification method of artificial forecast parameters is high, the time difference of peak appearance of artificial forecast is 1 hour, the error of manual forecasting Hong Feng discharge is 0.74, and the forecast precision grade is grade B. The research results have been applied to the automatic flood forecasting system in Wuxi River Basin of Zhejiang Province, which has reference value for flood forecasting in other watersheds.
【作者單位】: 三峽大學(xué)水利與環(huán)境學(xué)院;水資源安全保障湖北省協(xié)同創(chuàng)新中心;浙江華電烏溪江水力發(fā)電廠;
【基金】:國家自然科學(xué)基金項(xiàng)目(51409152)
【分類號(hào)】:P338
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