洪水流量預報 的英文怎麼說
中文拼音 [hóngshuǐliúliángyùbào]
洪水流量預報
英文
flood discharge forecast- 洪 : i 形容詞(大) big; vast; grand Ⅱ名詞1. (洪水) flood 2. (姓氏) a surname
- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 預 : Ⅰ副詞(預先; 事先) in advance; beforehand Ⅱ動詞(參與) take part in
- 報 : Ⅰ動詞1 (告知; 報告) report; declare; announce 2 (回答) reply; respond; reciprocate 3 (答謝)...
- 洪水 : waterflood; deluge; flood; flowage; torrent; spate; flood water; [義大利] acqua alta洪水泛濫 floo...
- 流量 : rate of flow; flow; runoff; discharge; throughput; (flow) rate; quantity (of flow); flux
- 預報 : [訊] forecast; forecasting; prediction
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So as the enter point of the stream, the income of the reservoir, the time of the flood peak lasted, the quantity of sandiness income and the strobe of the darn. we must do some work to forecast and watch the different density stream. by experiments, we made out that it is impo rtant for us to reduce the water lever in work of the river belongs lots of sandiness
從異重流試驗看,在正常運用下,水庫產生泥沙異重流的機率較大,能否運動到壩前排出庫外,還要看異重流潛入點位置、入庫流量、洪峰歷時、入庫含沙量、水庫閘門運用等因素,需要做好異重流預報監測工作。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。3. a new runoff forecasting model, based on the combination of genetic algorithm and neural network, is proposed, which integrate with the strongpoint of genetic algorithm and neural network. the accuracy and the speed of runoff forecasting are effectively improved that offered a new method for solving runoff forecasting problem
3 .提出了基於遺傳演算法的神經網路洪水流量的預測模型,該模型綜合遺傳演算法和神經網路的優點,有效地提高了預測精度和速度,為洪水流量預報問題提供了一種新的方法。In light of the problem of the precision of flood forecasting being influenced by the data errors of rainfall and water stage caused by the failures of the communication and the relevant equipments of the gauging stations concerned, the techniques for the automatic hydrologic data collection and transmission system such as data extraction, examination of rationality, error identification, rainfall interpolation and the intelligent error correction are studied based on the analysis on the cause of the errors occurred in the system
摘要針對流域洪水預報和水庫調度中雨量水位站點可能因通信和設備故障引起雨量和水位數據錯誤,而影響洪水預報精度的問題,通過分析水文遙測系統雨水情信息錯誤的原因,研究水文遙測系統雨水情數據的提取、合理性檢驗、錯誤識別方法、雨量插補、數據的智能化糾錯處理等技術。Using flood progress model and the different discharge of feilaixia reservoir, we can calculate in time the water level and discharge of middle - lower reaches of beijiang, thus increase the accuracy of flood forecast and provide the important technical support for the further research on the optimal dispatch method of f lood control system
其中依據水文學和水力學相結合的洪水演進模型,可根據飛來峽水庫不同的下泄流量,及時計算北江中下遊河道的水面線和下泄流量,提高了洪水預報的精度,為進一步研究防洪體系優化調度方法提供極其重要的技術支撐。In addition, the characteristic of outlier in the reservoir inflow is analyzed and the theory of robust estimation is introduced into the forecast of reservoir inflow and real - time error correction of it. the robust system can prevent outlier and extreme error from influencing correction efficiency, so as to improve the stability of correction results
分析水庫入庫實測流量中粗差的特點,把抗差理論與方法引入水庫入庫洪水預報和誤差實時修正中,研究了具有抗差特性的洪水預報實時修正方法,以抗禦粗差和極值誤差對修正結果的影響,增強了修正結果的穩定性。It can forecast flood real - timely and a course of any prospective flood. simulation model of runoff regards a drainage area as a system, simulating how one rainfall comes into being runoff in a basin. the import of system is rainfall, and the export is runoff
本文洪水預報採用產匯流模擬模型可以模擬任一時刻任一斷面的徑流量,對洪水進行實時預報,系統的輸入是降水量,輸出為流域出口的流量過程。Research on retrieval of gps water vapor and method of rainfall forecast are keen field which draws all attention from wide world. the dissertation is accomplished on the basis of sino - italy collaborative project - ' the integral system of flood risk programming, monitoring and real time forecasting " and the primary achievements and conclusion reached include : ( 1 ) a reasonable design has been made for gps water vapor monitoring network according to the theory of gps satellite signal propagation and vertical distribution of water vapor and local synoptic characteristic of binjiang basin, the effective area where water vapor can be detected by gps station has been determined under different cut - off angles. the conclusion has been reached that 3 ~ 4 gps receivers are enough for water vapor monitoring in binjiang basin
Gps水汽反演和降雨預報研究是當前氣象遙感應用的一個前沿探索領域,本論文依託于中意科技合作項目「洪水風險規劃、監測和實時預報的集成系統」 ,主要成果體現在以下方面: ( 1 )提出了一個合理的gps水汽監測網設計方案根據gps衛星信號傳播原理和水汽垂直分佈規律以及流域天氣的地方性特徵,確定了不同高度截角下一個gps站所能測定大氣水汽含量的有效范圍,得出了濱江流域只需要3 4個gps接收機就足以反映流域水汽變化的結論。分享友人