产流
- runoff producing
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本文对美国土保局产流模型进行分析研究,发现其中存在着关键性问题必须进行改进。
The runoff producing model in SCS of the United States is studied in this paper .
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结果表明,两种产流预报模型均可用于北方半湿润半干旱地区。
The result indicates that two runoff producing forecast models are all suitable in north semi-moisture semi - aridity region .
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坡面初始产流时间(tp)随雨强的增大而减小,二者呈幂函数关系。
The initial runoff-yielding time ( tp ) decreased with the increase of IR in power function .
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基于BP神经网络的坡面降雨产流预测
Quantity of Rainfall of a Slope Based on BP Neural Network
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遥感资料在SCS模型产流计算中的应用
The application of remote sensing in runoff formation in SCS model
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利用降雨入渗产流分析原理和Nash单位线汇流方法进行排涝模数计算的研究
Study on Drainage Modulus in Plain Watersheds by Using Infiltration-runoff Math-theoretical Analysis and Nash 's Instantaneous Unit Curve Method
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当用于以开始积水时间tp,为判别标志的产流计算模型中,采用小流域、径流实验场的水文资料和室内土柱入渗的实验资料进行模拟计算,结果良好。
The hydrologic data of small watershed and runoff experiment filed , the experiment data of soil column infiltration in laboratory are used in the model to simulate the excess rainfall , the result is better .
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在完成降雨量空间插值之后,作者根据小流域缺少实测资料的特点,采用SCS模型进行了产流计算。
After the completion of the spatial interpolation of precipitation , the author computes the effective rainfall using the SCS method .
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本文构建了一个适用于小流域的分布式水文模型系统框架,并应用于桑园流域,设计和实现了降雨量空间插值和SCS模型产流计算。
Taking Sangyuan Basin as a study area , a rainfall-runoff distributed hydrological model is constructed , which can be used small catchments .
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覆盖PAM能提高土壤入渗能力,使地表流速大大降低,产流时间推迟,入渗时间增加。
Treated with PAM , can enhance soil infiltration capacity , reduce overland flow , delay the commencement of runoff , and increase infiltration time .
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通过对梁王河流域和大鲫鱼沟流域实测降雨径流资料的分析与反演,提出了适合该区域的产流计算CN值。
CN values of the SCS model are calibrated by matching the modeled results with the observed ones for the gauged river catchments of Liang .
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针对上海市城区排水系统的水文水力学特性,以SWMM(StormWaterManagementModel)为基础开发出适合上海市区产流及排水特点和防汛管理要求的城市雨洪模型。
In regard to the hydrological and hydraulic characteristics of the Shanghai drainage system , a rainfall runoff model based on the Storm Water Management Model ( SWMM ) that suits flooding and drainage characteristics in Shanghai was established to simulate flooding management .
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地表径流主要由蓄满(Dunne)和超渗产流(Horton)机制产生;
Surface runoff is mainly generated by two mechanisms , infiltration excess ( Horton ) runoff and saturation excess ( Dunne ) runoff ;
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坡面产流过程中DP、SEP及STP含量的变化均表现为低-高-低的变化趋势,其变化与径流含沙量呈正相关,而累积流失量则表现为加速增加的趋势。
Changes in DP , SEP , and STP contents all show a similar " low-high-low " tendency and are positively related to sediment concentration during runoff process , while the accumulative amounts increase with accelerative rates .
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结果表明,应用DHF产流模型和流域经验单位线相结合的洪水预报方案模拟的洪水过程与实际洪水过程吻合的更好。
The results showed that the simulated flood fitted the actual flood better when applied the flood forecasting scheme combining DHF runoff model and watershed experience unit hydrograph model .
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SCS模型在降雨径流关系上,考虑了土壤类型、土地利用和前期土壤含水量状况,使产流计算建立在较合理的基础上。
SCS model is a small basin design flood model proposed by Soil Conservation Service ( SCS ) of USDA . At rainfall-runoff relationship , SCS model gives consideration to land used , soil type and antecedent soil moisture .
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考虑大伙房(DHF)产流模型中的流域蒸散发参数和土壤蓄水容量参数描述过于简化,现采用模糊描述的方法对其重新描述。
Considering that the watershed evapotranspiration and soil storage capacity parameters of the DHF model were oversimplified , the paper simplified them again and gave the fuzzy description to them .
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从流域坡面产流机制出发,依据Horton入渗曲线,建立起一个可适用于不同流域的综合产流模型。
Based on the runoff generation mechanism over slope surface and Horton infiltration curve , a synthetic model of runoff generation had been set up , which can be applied in different valley .
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地形指数是TOPMODEL(topographyindex,也称湿润指数,wetnessindex)中一个重要的输入参数,它把流域饱和缺水量,变动产流面积的概念紧密联系起来。
Topography index ( wetness index ) is a crucial kind of input data , which links the saturation deficit of a basin with the conception of variable contributing area . According to the definition of topography index , proce - dures of calculating the index were presented .
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介绍了SWMM模型原理,包括地表产流子系统演算、地表汇流子系统演算和传输子系统流量演算。
This paper presents the principles of SWMM model , which consists mainly of three parts , i.e. ground surface rainfall sub-system calculation , overland flow sub-system calculation and storm-sewer flow sub-system calculation .
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DWHC嵌套模型的计算结果表明,内陆河高寒山区流域存在明显的浅表产流特征,这与地面观测资料驱动结果一致。
The MM5-DWHC model results also showed that the runoff production processes mainly occurred on the soil surface and in the shallow soil layers .
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研究区主要以超渗产流方式为主,可以用Horton模型来描述,在不同雨强下均监测到了约0.10mm/min的深层渗漏,该值可以认为是该区的稳定入渗率。
In this study area , the dominant infiltration excess runoff is simulated by Horton model . About 0.10 mm / min percolation is observed under the condition of different rainfall intensities , therefore the value is regarded as the steady infiltration rate .
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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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研究了不同雨强和降雨历时下的流域产流及产沙过程,采用的雨强为:25、50、75、100mm/hr,降雨历时为:5、10、20、40min。
The runoff and sedimentation processes were investigated under different rainfall intensities and durations , with rainfall intensities at 25 , 50 , 75 mm / hr and at durations of 5 , 10 , 20 and 40 min.
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以年产流降雨量和汛期雨量作为年降雨指标,经过分析发现,当年产流降雨量大于125mm和汛期雨量大于350mm时,随着雨量的增大,水平梯田的蓄水保土效益减小,呈极显著相关。
With annual rainfall output and flood season rainfall as annual rainfall index , we found the benefit would reduce with the increases of rainfall when the annual rainfall was greater than 350 mm or the flood reason rainfall was larger than 125 mm .
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川中丘陵区紫色土坡耕地产流特征试验研究
Experimental Study on Runoff Characteristics of Slope Land in Sichuan Basin
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蓄满产流理论在林冠截留降雨中的应用
Application of Stored-full Runoff Theory in precipitation intercepting of forest canopy
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香溪河流域不同土地利用类型的产流特性研究
Characteristics of Runoff on Different Land-use Types in Xiangxi River Watershed
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黄土高原坡面降雨产流过程的试验分析
Experiment on rainfall - runoff process on slop of loess plateau
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北方地区两种产流预报模型的应用与比较
Application and comparison of two runoff producing models in north region