查询词典 hydrograph

Significant improvements to the TOPMODEL were made on the distributed computation of runoff yield in the mesh scale which is equivalent to that of DEM in one hand,and an isochrones hydrograph was calibrated from rainfallrunoff observations for watershed convergence simulations on the other hand.These improvements were made to enhance the simulation ability of the TOPMODEL,meanwhile to extend the model′s adoptability in rainfallrunoff simulations to middle and large scale watersheds.

考虑到流域地形、下垫面条件及流域气象条件的空间差异性，将TOPMODEL的产流计算细化到每个栅格，以改进模型的分布式计算，并在考虑地形坡度影响的情况下，根据降水-径流资料优选出的参数率定等流时线、利用率定的等流时线进行流域的汇流计算，以提升TOPMODEL在中、大尺度流域模拟演算的能力。

The basin geomorphological instantaneous unit hydrograph is derived.

得到流域地貌瞬时单位线。

In addition, through plotting the hydrograph of mean annual and natural yearly runoff and the residual mass diagram of frequency factor from 1919 to 2002 in Sanmenxia Station, 2 continuous low water periods from 1922 to 1932 and from 1990 to 2002 are obtained.

通过绘制多年均值和天然年径流量过程线以及模比系数差积曲线，得出黄河三门峡站1919～2002年系列中存在1922～1932年和1990～2002年两个连续枯水段。

In terms of the model, the representativity of unit hydrograph is enhanced, and it is easy to modify and improve the runoff model.

提出了模式单位线的概念和推求它的方法，这一模型可以增强单位线的代表性，便于预报方案的修改和完善。

In order to overcome the weaknesses in the traditional methods for base flow separation, such as the lack of both physical basis and feasible procedures, three basic principles for base flow hydrograph separation were proposed, based on which a new base flow hydrograph separation method was developed.

针对现行流量过程线分割方法中存在著缺乏物理基础和客观的、科学的操作方法，以及其他的一些问题，提出了流量过程线的分割应遵循的三条基本原则，在此基础上提出流量过程线分割的新方法。

By Monte-Carlo Method the flood discharge risk is calculated with consideration of the uncertainty of flood hydrograph, and the result is compared with that without consideration of the uncertainty of flood hydrograph.

文章最后用蒙特卡洛法分别计算了此工程在考虑洪水过程不确定性和不考虑时泄洪风险值，比较二者的计算结果，后者的风险值明显大于前者，这说明，洪水过程不确定性对泄洪风险的影响不可忽略不计。

This paper introduces the significance of the interactive correct technology applied to forecasting hydrograph, and the process-fit-smoothness and the cubic interpolation technology. Based on the technology above, it can be realized to correct the forecasting hydrograph interactively in the form of elastic which is applied to the flood forecasting system.

分析了水文预报过程交互式修正技术在洪水预报工作中的重要性，介绍了过程拟合平滑技术和样条插值技术，基于此基础上研究实现了以橡皮筋形式交互式修正水文预报过程的技术，并应用于洪水预报系统中。

The objective of this study is to introduce briefly the basic concept and expression of isotope and the theory of isotopic hydrograph separation,to review the advantages and disadvantages of various hydrograph separation methods which are applied all over the world and to introduce two-component and three-component isotopic hydrograph separation models in details.

简要介绍了同位素的基本概念、表示方法以及同位素示踪流量过程线分割的基本原理。综述了国内外关于流量过程线分割各种方法的优缺点，并对二水源同位素过程线分割模型和三水源同位素过程线分割模型进行了详细介绍和推导。

Based on the comparing of the several methods calculating discharge hydrograph,this paper points out that the results of instantaneous unit hydrograph and isochronal method are close to the real situations,and these can be used to design the inflow hydrograph in storm sewer.

比较瞬时单位线与等流时线法和直接积分法计算的流量过程线。瞬时单位线法和等流时线法的流量过程线较接近实际，可以作为雨水管道设计入流流量过程线

By theory analyzing and example calculation and comparison, the conclusion is obtained that the traditional inferential method can be applied in the design flood peak flow calculation, yet it cannot truly express the runoff process of the rain drainage inlet, the instantaneous unit hydrograph depending on the real and actual datum is different to be used in the runoff discharge hydrograph calculation, and the no linearity reservoir means and the isochronal method have some physics base and its parameters easily evaluated and its runoff discharge hydrograph still more is close to practice.

5通过城市雨水地表汇流特性及计算方法的理论分析、实例计算和对比得出：传统推理法可应用于城市设计洪峰流量的计算，但不能真实地反映雨水口径流流量过程；瞬时单位线法等对实测资料有较大依赖，难以应用于城市径流流量过程线的计算；非线性水库法和等流时线法的径流流量过程线接近实际。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。