摘要
在对辽宁省水资源遥感调查中,利用陆地卫星TM遥感图像,在地理信息系统的支持下,计算机屏幕解译河流的流域分界线,计算流域面积。实现了测绘数字化,简化了手工制图繁琐的作业流程,直接形成的数字矢量图精度提高,便于做各种分析和设计。
In sensor investigation of water resources in Liaoning province, the TM sensor image of Landsat is utilized for explaining the demarcation line of river basin and computing the catchment area, formed numeral vector figure has a high prevision favourable to analysis and design.
出处
《东北水利水电》
2004年第4期29-30,41,共3页
Water Resources & Hydropower of Northeast China
关键词
遥感
地理信息系统
流域面积
sensor
geographic information system
catchment area
