院报 ›› 2016, Vol. 33 ›› Issue (11): 63-67.DOI: 10.11988/ckyyb.20160130

• 地理信息技术与应用 • 上一篇    下一篇

基于空间信息技术的六股河流域河网水系提取

王正勇1, 杨胜梅2, 马 琨2, 宁 晶2, 何 亮2, 韩贤权2   

  1. 1.湖北省襄阳市水文水资源勘测局,湖北 襄阳 441021;
    2. 工程安全与灾害防治研究所,武汉 430010
  • 收稿日期:2016-02-22 出版日期:2016-11-20 发布日期:2016-11-08
  • 通讯作者: 杨胜梅(1983-),女,安徽桐城人,高级工程师,博士,主要从事空间信息技术在资源、环境、灾害领域应用方面的研究,(电话)027-82829089(电子信箱)yangshengmei_cky@163.com。
  • 作者简介:王正勇(1975-),男,湖北襄阳人,工程师,主要从事水文水资源研究管理工作,(电话)15897997666(电子信箱)289684609@qq.com。
  • 基金资助:

    国家自然科学基金项目(51509007,41301434,51409021);中央级公益性科研院所基本科研业务项目(CKSF2016033/GC,CKSF2015020/GC)

Extraction of River Networks of Liugu River WatershedBased on Spatial Information Technology

WANG Zheng-yong1, YANG Sheng-mei2,MA Kun2, NING Jing2, HE Liang2, HAN Xian-quan2   

  1. 1. Bureau of Hydrological Resources Survey of Xiangyang, Hubei Province, Xiangyang 441021, China;2.Engineering Safety and Disaster Prevention Department, Yangtze River Scientific Research Institute, Wuhan 430010, China
  • Received:2016-02-22 Online:2016-11-20 Published:2016-11-08

摘要:

快速有效地获取河网水系特征信息对于流域水文分析具有重要的意义。为此,选取辽宁省六股河流域作为研究对象,以30 m空间分辨率的数字高程模型(DEM)作为基础数据,采用美国ESRI公司开发的地理信息系统软件ArcGIS,对该流域的水流方向、累积汇流栅格、河网水系等基础信息进行了提取研究。将河网提取结果与国家基础信息中心提供的1∶4 000 000河流水系基础资料进行对比,提取结果的干流河网段与实际水系形态特征较为吻合,提取的流域面积与实际流域面积相差1.99%,表明空间信息技术应用于六股河流域水文基础信息提取是可行的,可为流域水文模拟、数字流域建设等研究提供基础数据支持。

关键词: 空间信息技术, DEM, 河网水系提取, 水文特征, 河网密度

Abstract:

Quickly and efficiently obtaining river network information is of great significance for basin hydrological analysis. In this paper, the fundamental information of flow direction, flow accumulation raster, and river network is extracted using ArcGIS based on DEM(digital elevation model) data with spatial resolution of 30 meters. Liugu river watershed in Liaoning province is taken as a case study. Furthermore, the extraction results are compared with the real river stream with spatial resolution of 1∶4 000 000, and the main river stream network matches well. The area difference between the extraction and the actual basin is only 1.99%, indicating that the spatial information technology is available to the watershed characteristics extraction. The extraction data could provide data support for hydrologic simulation and digital basin construction.

Key words: spatial information technology, DEM, extraction of river streams, hydrological characteristics, river network density

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