基于ArcGIS的高精度DEM建立方法研究  

Research on the Construction Method of High Accuracy DEM Based on ArcGIS

作　　者：翟辉琴 王海涛 范大昭[3] 路凌芝 ZHAI huiqin;WANG Haitao;FAN Dazhao;LU Lingzhi(32269 Troops,Lanzhou 730030,China;63983 Troops,Wuxi 214035,China;Institute of Survey and Mapping,Information Engineering University,Zhengzhou 450052,China)

机构地区：[1]32269部队,甘肃兰州730030 [2]63983部队,江苏无锡214035 [3]信息工程大学地理空间信息学院,河南郑州450052

出　　处：《测绘与空间地理信息》2022年第11期95-97,共3页Geomatics & Spatial Information Technology

摘　　要：采用ArcGIS软件、不规则三角网建模与内插技术,研究了丘陵地区1:10 000地形图等高线和高程点数据的高精度DEM建立方法,并对精度进行了评估。研究结果表明,该方法建立的DEM精度符合三级DEM技术指标要求,根据此方法可针对不同地貌类型开展DEM建立实验,不断优化技术方案,提高DEM数据精度。In this paper, software of ArcGIS, Triangulated Irregular Network and interpolation technique are used to study the construction method of high accuracy DEM based on contour lines and elevation points data of 1∶10 000 topographic map in hilly area, and the accuracy is evaluated. The research results show that the DEM accuracy by this construction method meets the requirements of third-level DEM technical indexes. According to this method, DEM establishment experiments can be carried out for different types of landform, technical solution can be continuously optimized, and data accuracy can be improved.

关 键 词：数字高程模型 不规则三角网 内插技术 

分 类 号：P208[天文地球—地图制图学与地理信息工程]