激光雷达技术流域地形构建应用现状与展望

Title application status and prospect of LiDAR technology in watershed terrain construction

激光雷达技术在高精度数字高程模型构建中具有显著优势,未来将成为流域下垫面地形信息采集的主要方法,是数字孪生水利建设的重要技术之一。针对流域地形构建,对比了几种典型技术方法,阐述了激光雷达技术的原理、优势和局限性,以“基础设施、指导文件、先行先试、系统支撑”4个维度反映水利行业应用现状,并总结了激光雷达技术流域地形构建推广存在的问题,针对性进行展望,提出下一步激光雷达技术在水利应用中的工作思路和具体建议,对数字孪生水利建设和高精度地理空间数据底板构建具有一定的参考价值和指导意义。

LiDAR technology has significant advantages in the const ruction of high-precision digital elevation model,and is expected to become the main method of watershed subsurface topogr aphic information acquisition,is one of the important technologies of digital twin water conservancy construction.For the construction of watershed terrain,several typical technical methods are compared,and the principles,advantages and limitations of LiDAR technology are described and the current status of application in the water conservancy industry is introduced through typical application cases.At the same time,the existence of related problems are summarized,and targeted outlook and the next step of LiDAR technology water conservancy application of work ideas and specific recommendations for the construction of digital twin water conservancy and high-precision geospatial data substrate construction has a certain reference value and guiding signi ficance.