洪峰
- flood peak;crest;flood crest;the high point of a flood
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[crest;flood peak] 洪水时的最高水位
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利用灰色系统关联分析方法来研究NAM模型参数对模型模拟径流深、洪峰流量和峰现时间的影响。
The parameters of the NAM hydrological model are researched on affecting the depth of runoff volume , flood peak flux and flood peak appearance time .
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荆江以下最大洪峰流量和最大60d洪量对比表明,1998年洪水总体上小于1954年,在本世纪已发生的3次全流域性大洪水(1931、1954、1998年)中列第2位。
In terms of maximum flood peak discharge and maximum 60-day flood volume below Jingjiang river , 1998 flood is smaller than 1954 one as a whole , and ranks second among three basin-wide large floods ( 1931,1954,1998 ) occurring in this century .
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HHT在年最大洪峰流量规律分析中的应用
Application of Hilbert-Huang Transform on analysis of law of annual maximum peak flood
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水文不确定性方面,分析了洪峰流量、洪量和历时的不确定性,并运用Monte-Carlo法来模拟施工洪水过程;
This paper analyzes hydrologic uncertainties such as peak-flow , flood-volumes , flood-duration and simulates construction flood by Monte-Carlo method .
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基于Markov过程分析方法,对嘉陵江北碚水文站1939年~2005年历年最大洪峰流量序列进行状态变化的分析和预报。
Markov model was used to analysis and forecast qualitatively the annual maximum peak discharge from 1939 to 2005 at Beibei station of the Jialing River .
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流域次降雨洪峰流量模数与输沙模数也为幂函数关系,但参数a、b在不同流域之间差别较大,其相关性不如径流深与输沙模数关系好。
The flood peak volume modulus and sediment transport modulus is also power function relationship . But parameter a and b is different largely in different watershed and the relativity is not well than relationship between runoff depth and sediment transport modulus .
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应用表明,改进的模糊BP神经网络能够较好的反映洪水演进机理,提高了神经网络洪水预报模型对洪峰的预报精度,保证了洪峰预报的可靠性。
The using of the algorithm indicates that the modified fuzzy ANN network can reflect the mechanism of flood , improved the forecasting accuracy of ANN forecasting modal , and ensured the reliability of flood peak forecasting .
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通过SqlServer数据库接口对实时洪水预报系统预报的入库洪水进行分析,统计其洪水特性,包括洪峰流量、洪水总量、洪水频率等。
The reservoir inflow , which are forecasted by the real-time flood forecasting subsystem and stored in SQL Server database , are analyzed . The statistics of flood characteristic conclude peak flow , flood volume , flood frequency etc.
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BBC新闻–巴黎很快要迎来洪峰,塞纳河水位将高过正常水平6米(19英尺)。
BBC News - Floodwaters in Paris are set to peak shortly with the River Seine due to go 6m ( 19ft ) above its normal level .
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结果表明:森林覆盖率高的流域拦水能力较高,能显著地削减洪峰、延缓洪水过程,降低径流系数,使次暴雨径流量的变差系数CV增大。
The results are as follows : the watershed with high vegetation coverage can largely intercept water , decrease flood peak , lengthen flood process and intensify variation coefficient in storm runoff .
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在该模型中,可考虑水文中的洪峰流量、洪水总量和洪水过程的不确定性及水力的不确定性,提出了用Monte-Carlo方法计算施工导流风险的步骤和用近似法计算施工导流风险的方法。
In this model , the peak of flood , flood total outflow and flood process are to be considered . A calculation program with Monte-Carlo method and a simplified method for calculating diversion risk are suggested .
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根据历年资料运用滑动平均法以及Kendall秩次相关检验法分析各个流域的洪量以及洪峰的变化趋势。
According to the historical data , moving average method and the Kendall rank correlation test method are used to analysis the trend of the flood peak and flood volume .
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结果表明:杉木人工林地土壤含水量为404.4mm,土壤贮水能力达1220t/hm2,年径流量474.1mm,洪峰径流系数0.19。
Results showed that average soil water content , soil water storage capacity , yearly runoff , runoff coefficient of flood peak in Chinese fir plantation were 404.4 mm , 1 220 t / hm 2,474.1 mm , 0.19 respectively .
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用南方和北方地区六个流域的93次实测洪水资料对模型进行了检验,结果表明,地貌IUH计算的洪峰流量的合格率达到80%以上。
93 flood events from 6 basins of Southern and Northern region are tested by comparing the observed runoff with the calculated one .
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水土保持综合治理对洪水过程的影响分析表明,水土保持综合治理后总径流量消减了20%左右,洪峰流量消减了30%以上,峰现时问推迟了60min左右。
Comprehensive governance of soil and water conservation to the flood process indicated that after the governance , the total runoff and the peak discharge decreased approximately 20 % and 30 , respectively .
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采用PMP条件下的产汇流计算方法,计算了坝址的PMF过程,结果表明:由时面深概化法估算的PMP,用69.7和71.6时雨型推算的PMF洪峰洪量均较大;
Adopting the output-conflux count method on the PMP condition , calculated the PMF process of the dam . The result shows : estimated by the time-area-depth summarization , the PMF flood-peak flows ' reckoned by " 69.7 " and " 71.6 " rain type are both big .
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结论:较之SLM,LPM模型的有效性和可靠性都有很大的提高,而且在一定程度上消减了洪峰预报误差,考虑了洪峰非线性变化的影响。
In conclusion , compared with the SLM model , the accuracy and reliability of the LPM model have improved greatly , including cuting down the discharge of the flood peak as well as considering the impact as a result of the nonlinear changes of the flood peak .
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在SCE-UA算法中,目标函数的建立对于参数优化具有重要作用,在次洪模拟时,目标函数应突出高水过程和洪峰对模拟效果的影响;
In SCE-UA algorithm , the establishment of the objective function is important for parameter optimization , and the effects of high-water flood process and flood peak should be emphasized in the establishment of the objective function for flood simulation .
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该模型用Horton下渗曲线进行单元网格的产流计算,用各产流单元的汇流时间和线性水库相结合的方法模拟洪水过程中的洪峰平移和坦化现象。
In this model , the Horton infiltration capacity curve was used to calculate the runoff generation at each grid , and the concentration time for each runoff generation element , combined with the linear reservoir technique , was adopted for simulation of transition and subsidence of flood waves .
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年最大洪峰流量预测的马尔可夫链模型
The Markov 's Chain Model to Predict Maximum Annual Peak Discharge
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长江洪峰预测新概念
A New Concept for Prediction of Flood Peaks in Yangtze River
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疾病发生随洪峰的出现、险情的增加成波状起伏;
The sufferers increase with the appearance of the flood peak .
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推求小流域设计洪峰的迭代解法
Iteration method for calculating design flood peak discharge of little basins
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新疆河流年最大洪峰流量系列初步研究
Research on the Annual Peek Flood Series of the Rivers in Xinjiang
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山西地区煤矿防洪设计洪峰流量分析
Peak flow analysis in coal mine flood-prevention design in Shanxi
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气候变化对洪水频率和洪峰流量的影响
Impacts of Climate Change on Flood Frequencies and Peak Discharges
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周期均值迭加法推求牡丹江洪峰水位
Flood crest stage in Mudanjiang River deduced by periodic mean superposition method
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利用简测法施测分析山区河流最大洪峰流量方法探讨
Discussion of Using a Simple Method to Analyze the Largest Peak Flood
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历史洪水洪峰流量估算的不确定性分析
Uncertainty Analysis in Estimating Peak Discharge of A Historical Flood
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关于呼玛河1991年洪峰水位的预报
Forecast of Flood Peak Level about Huma River in 1991