检索结果-南通市图书馆

Application of Muskingum routing method with variable parameters in ungauged basin

Water Science and Engineering 2011年第1期4卷 1-12页

作者： Xiao-meng SONG Fan-zhe KONG Zhao-xia ZHU School of Resource and Earth Science China University of Mining and Technology Xuzhou 221116 P. R. China Graduate School China University of Mining and Technology Xuzhou 221008 P. R. China Department of Resources and Survey Engineering Chongqing Vocational Institute of Engineering Chongqing 400037 B R. China

This paper describes a flood routing method applied in an ungauged basin, utilizing the Muskingum model with variable parameters of wave travel time K and weight coefficient of discharge x based on the physical characteristics of the river reach and flood, including the reach slope, length, width, and flood discharge. Three formulas for estimating parameters of wide rectangular, triangular, and parabolic cross sections are proposed. The influence of the flood on channel flow routing parameters is taken into account. The HEC-HMS hydrological model and the geospatial hydrologic analysis module HEC-GeoHMS were used to extract channel or watershed characteristics and to divide sub-basins. In addition, the initial and constant-rate method, user synthetic unit hydrograph method, and exponential recession method were used to estimate runoff volumes, the direct runoff hydrograph, and the baseflow hydrograph, respectively. The Muskingum model with variable parameters was then applied in the Louzigou basin in Henan Province of China, and of the results, the percentages of flood events with a relative error of peak discharge less than 20% and runoff volume less than 10% are both 100%. They also show that the percentages of flood events with coefficients of determination greater than 0.8 are 83.33%, 91.67%, and 87.5%, respectively, for rectangular, triangular, and parabolic cross sections in 24 flood events. Therefore, this method is applicable to ungauged basins.

关键词： Muskingum model," flood routing." variable parameters ungauged basin HEC-HMS

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Different Light in Predicting ungauged basins： Regionalization Approach Based on Eastern USA Catchments

引用

Journal of Civil Engineering and Architecture 2013年第3期7卷 364-378页

作者： Syed Abu Shoaib Andras Bardossy Thorsten Wagener Yingchun Huang Nahid Sultana Department of Environmental Science Independent University Bangladesh (IUB) Dhaka 1229 Bangladesh Institute for Modelling Hydraulic and Environmental Systems University of Stuttgart Stuttgart D- 70569 Germany Department of Civil and Environmental Engineering Pennsylvania State University Pennsylvania 16802 USA Institute of Environmental Studies University of New South Wales Sydney NSW 2052 Australia

This paper reviewed the existing methods in regionalization studies to predict ungauged catchments and considering all the aspects a different methodology is developed, which is named as RDS method. ROPE （robust parameter estimation）-D （data depth）-S （spatial proximity） together gets this name RDS. Catchment properties and hydrological model parameters are used consistently to predict ungauged basin. This study explores the potential of the regionalization process to predict ungauged basins using the data of the Eastern USA catchments. Two conceptual rainfall-runoff hydrological models： HYMOD and HBV are used in this study. Analysis shows 95% success in predicting ungauged basins with HBV and 90% success with HYMOD. It is undoubtedly perceptible that RDS method is very effective in predicting ungauged basin and regionalization is independent of the conceptual rainfall-runoff model.

关键词： ungauged basin rainfall-runoff modeling regionalization robust parameter.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Evaluating soil erosion by water in a small alpine catchment in Northern Italy: comparison of empirical models

引用

Acta Geochimica 2021年第4期40卷 507-524页

作者： Francesca Berteni Stefano Barontini Giovanna Grossi DICATAM(Department of Civil EnvironmentalArchitectural Engineering and Mathematics)University of BresciaVia Branze 4325123 BresciaItaly

To quantify water erosion rates and annual soil loss in mountainous areas,two different empirical models were used to estimate the effects of soil erosion in a small mountain basin,the Guerna Creek watershed,located in the Central Southern Alps(Northern Italy).These two models,Revised Universal Soil Loss Equation(RUSLE) and Erosion Potential Model(EPM),were implemented in a Geographical Information System,accounting for the geographical,geomorphological,and weather-climate parameters,which are fundamental to evaluating the intensity and variability of the erosive *** characterization was supported by laboratory *** results(computed soil loss of 87 t/ha/year and 11.1 m^(3)/ha/year,using RUSLE equation and EPM method,respectively,and sediment yield of 7.5 m^(3)/ha/year using EPM method) were compared to other studies reported in the literature for different case studies with similar topographic and climatic features,as well as to those provided by the European Soil Data Centre(ESDAC).In both cases,the agreement was satisfactory,showing consistency of the adopted procedures to the parametrization of the physical processes.

关键词： Water erosion Alpine hydrology EPM RUSLE Soil loss ungauged basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Development of a Cell-based Model to Derive Direct Runoff Hydrographs for ungauged Mountainous basins

引用

Journal of Mountain Science 2007年第4期4卷 309-320页

作者： P. B. Hunukumbura S.B. Weerakoon Srikantha Herath Disaster Prevention Research Institute Kyoto University Kyoto Japan Dept. of Civil Engineering University of Peradeniya Sri Lanka Environment and Sustainable Development Programme United Nations University Tokyo Japan

A model to derive direct runoff hydrograph for an ungauged basin using the physical properties of the basin is presented. The basin is divided into grid cells and canal elements. Overland flow is generated from each grid cell of the basin by application of continuous effective rainfall of I mm/hr to the basin, The flow generated is routed through downstream grid cells and the canal elements using the kinematic wave approach. The travel time for direct runoff from each grid cell to the basin outlet is calculated and the S-curve is derived for the basin. The S-curve is used to derive the unit hydrograph of a given duration for the basin. The model, referred as Cell-basin model was applied to the Upper Kotmale basin in Sri Lanka and the model predictions of direct runoff hydrographs for rainfall events agreed with the observations to a reasonable accuracy. Comparison of the unit hydrographs obtained from the model and from the conventional Snyder＇s synthetic unit hydrograph using regionalized parameters assuming the basin as an ungauged basin, with the unit hydrograph derived from the observations showed that the model predicted unit hydrograph was more suitable than that obtained by Snyder＇s method for Sri Lankan up country basins. Thus, the present model is a useful tool to obtain direct runoff hydrograph for ungauged basins.

关键词： ungauged basin GIS unit hydrograph mountainous basin direct runoff hydrograph model cell-based model cell-basin model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

VIC模型参数的地区分布规律及在无资料流域的移用．

引用

水资源研究 2012年第3期1卷 57-64页

作者：周研来郭生练郭家力吴波

构建覆盖安康流域的大尺度网格VIC分布式水文模型，利用有资料地区率定模型参数，分析VIC模型参数与气候和土壤因子的关系，探讨模型参数的地区分布规律。根据安康流域1980~1990年逐日实测数据，采用多元回归方法建立了参数移用公式，... 详细信息

构建覆盖安康流域的大尺度网格VIC分布式水文模型，利用有资料地区率定模型参数，分析VIC模型参数与气候和土壤因子的关系，探讨模型参数的地区分布规律。根据安康流域1980~1990年逐日实测数据，采用多元回归方法建立了参数移用公式，并用来推求无资料地区的水文模型参数。应用结果表明：移用公式在安康、褒河和岚河子流域的模拟效果较好，VIC模型率定期的确定性效率系数分别为91.41%、90.01%和86.55%，接近有资料地区参数率定的结果，可用于无资料地区的径流模拟。

关键词： VIC模型多元回归分析无资料地区安康流域 VIC Model Multi-Regression Analysis ungauged basin Ankang basin

来源：评论

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：