Simulation Hydrological Characteristic of Yuqiao Watershed Based on Digital Elevation Model

摘要：

Based on analysis of Digital Elevation Model (DEM), hydrology data of Yuqiao watershed in Tianjin, and Geographic Information System (abbr. GIS), we can quantitatively analyze and simulate hydrological information and hydrological characteristics of stream basins in Yuqiao watershed. The hydrology processes, such as extracting the surface features, filling the sinks of DEM. identifying the flow direction, calculating the flow accumulation and extracting the river network of the whole basin were analysis step by step.. The results are evaluated based on the comparison of catchment areas. As a result, when the drainage area is 10000m2 The area error of whole watershed is 0.02％. The study of the integration of DEM and GIS technique is an effective approach to extract catchment and simulate hydrological processes.

关键词： DEM Hydrological processes Watershed

作者: Li Chongwei Hu Jie Cui TieJun

作者单位: College of Urban and Environment Sciences Tianjin Normal University Tianjin, China

会议类型: 国际会议

会议名称: 2011 International Conference on Database and Data Mining(ICDDM 2011)(2011年数据库和数据挖掘国际会议)

会议地点: 三亚

会议语种:英文

页码: 79-83

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）