摘要
为满足桂林某风电场的勘察设计工作,需要生产精度约为1∶5000的DEM。该区域有空域敏感等特点。使用高精度数据源TanDEM作为初始数据,针对该数据源在植被茂盛地区表现为DSM的情况,在重点区域补充调绘林木数据。利用ArcGIS空间分析工具对该数据进行局部修正从而得到DEM,并对数据进行分析及野外验证,满足精度需求,达到了快速有效地为风电场的设计工作提供基础测绘数据的要求。
In order to meet the investigation and design of a wind farm in Guilin,DEM with a production precision of 1:5000 is required.The region has spatial sensitivity and other characteristics.With the high- precision TanDEM data as the initial data and supplement data of the trees in key areas of lush vegetation, the DEM can be obtained by using ArcGIS spatial analysis tool to modify the data locally,and the data has be analyzed and verified in the field to meet the precision requirements.It can provide basic surveying and mapping data for wind power plant design quickly and effectively.
作者
郑晶
温玉维
Zheng Jing;Wen Yuwei(China Energy Eizgineering Group Hunan Electric Power Design Institute Co.,Ltd.,Changsha 410007,China)
出处
《工程勘察》
2018年第12期58-62,共5页
Geotechnical Investigation & Surveying
