机载LiDAR的库容曲线更新技术  

Storage capacity curve updating technology based on airborne LiDAR

作　　者：王宗伟 石一凡 陆敏燕 黄博超 WANG Zongwei;SHI Yifan;LU Minyan;HUANG Bochao(Jiangsu Province Surveying and Mapping Engineering Institute,Nanjing 210019,China;Key Laboratory of Land Satellite Remote Sensing Application,Ministry of Natural Resources of the People's Republic of China,Nanjing 210019,China;Jiangsu Hydraulic Research Institute,Nanjing 210017,China)

机构地区：[1]江苏省测绘工程院,江苏南京210019 [2]自然资源部国土卫星遥感应用重点实验室,江苏南京210019 [3]江苏省水利科学研究院,江苏南京210017

出　　处：《测绘通报》2025年第1期138-142,149,共6页Bulletin of Surveying and Mapping

基　　金：江苏省水利科研项目(2020061)。

摘　　要：库容曲线是水库调蓄管理的基础数据,其精度影响水库各项功能的发挥。随着时间的推移,原有设计的库容曲线已不能满足管理要求,传统的库容曲线推求方法效率低下、更新成本较高。为解决此问题,本文提出了一种基于机载LiDAR和水位监测的库容曲线更新方法,采用枯水期时LiDAR进行航摄,通过对机载LiDAR点云进行数据处理、构建DEM模型、提取水位-面积-库容等,从而实现库容曲线的更新。试验结果表明,该方法得出的库容曲线与实际相吻合,结果正确、科学可信,能实现库容曲线的快速更新,可为水资源管理、区域调蓄洪水和抗旱减灾等提供决策依据。Reservoir capacity curve is the basic data basis of reservoir regulation and storage management,and its accuracy affects the play of various functions of the reservoir.As time goes by,the original storage capacity curve can not meet the management requirements,and the traditional storage capacity curve calculation method is inefficient and the updating cost is high.In order to solve this problem,a storage capacity curve updating method based on airborne LiDAR and water level monitoring is proposed in this paper.The method adopts LiDAR aerial photography during dry season,and realizes the update of the storage capacity curve through the processing of airborne LiDAR point cloud data,the construction of DEM model,and the extraction of water-area-storage capacity.The experimental results show that the storage capacity curve obtained by the method is consistent with the practice,the results are correct,scientific and reliable,and can realize the rapid update of the storage capacity curve,which can provide decision-making basis for water resources management,regional flood water regulation and storage,drought relief and so on.

关 键 词：LIDAR 水位-面积-库容 库容曲线 DSM DEM 

分 类 号：P237[天文地球—摄影测量与遥感]