洪峰行進 的英文怎麼說
中文拼音 [hóngfēnghángjìn]
洪峰行進
英文
flood crest travel-
According to all the sediment peaks of 35 floods observed at each station on the downstream of xiaolangdi, it analyzes the characteristic of delayed sediment peak and establishes a regression equation between sediment peak lag time for each section of xiaolangdi, huayuankou, jiahetan, gaocun, sunkou, aishan and lijin and peak discharge, sediment concentration of the peak, flood propagation velocity and fall velocity of suspended load of the previous station, which can search, make up and extend sediment peak lag time and provide a basis for accurate forecasting on sediment peak travel time of each station on the lower yellow river
根據小浪底下游各站沙峰均滯後於洪峰的35場洪水，對沙峰滯後於洪峰的特性進行了剖析，建立了小浪底、花園口、夾河灘、高村、孫口、艾山、利津各河段沙峰滯后時間與上站洪峰流量、沙峰含沙量、洪水傳播速度、懸移質泥沙群體沉速之間的回歸方程，可以用來查補延長沙峰滯后時間，為下游各站沙峰傳播時間的準確預報提供依據。The probability density function of net rainfall relative errors, flood peak discharge relative errors and the time error of the forecasted flood peak are calculated by the model developed
通過建立洪水預報誤差分佈的最大摘模型，計算出9座典型水庫洪水預報的凈雨相對誤差、洪峰流量相對誤差和峰現時間預報誤差的概率密度函數，並將其概率密度函數曲線與正態分佈曲線進行比較。Abstract : some of the present models of forecasting zipingpu ' s flood can t fully discover the information in flood process and others are impractical. so a staistical method, projection pursuit regression is applied in forecasting peak flood and flood process. comparing with other models, the new one gets high precision and is easy to be operated in practice
文摘:針對現有紫坪埔洪水預報模型或不能充分挖掘樣本信息或不便於實際應用的問題，現用投影尋蹤回歸方法建立了紫坪埔洪水預報模型，分別對洪峰和洪水過程進行了預報，並與其他方法進行了對比，取得了滿意的效果，可以作為紫坪埔洪水預報的新方案。
分享友人