利用DEM进行断面测量在河道划界中的应用  

Application of DEM to the section measurementin the river delimitation

作　　者：杨立志 Yang Lizhi(Gansu Mapping Institute,Lanzhou 730000,China)

机构地区：[1]甘肃省地图院,甘肃兰州730000

出　　处：《矿山测量》2021年第1期39-42,92,共5页Mine Surveying

摘　　要：断面测量是河道划界工作中的重要部分,传统的外业实测断面方法,在时间成本上有很大劣势。文中探讨了DEM的生产流程及在河道划界中的应用,利用DEM快速获取河道划界工作中所需的河道断面图测绘成果,并对断面图成果进行验证分析,摸索出了一套在河道断面测量工作中高效可行的技术方法,为划界工作顺利完成起到了关键作用。Section measurement was an important part of the river delimitation.Traditional field section measurement method had the great disadvantage in time cost.In this paper,the production process and the application of DEM were discussed in the river demarcation,section surveying and mapping results required in the river delimitation work were obtained quickly by using DEM,and the section results were analyzed and verified,the efficient and feasible technology method was explored in the river section measurement.

关 键 词：无人机 航测技术 DEM 断面 

分 类 号：P231[天文地球—摄影测量与遥感]