机载激光雷达测量技术在冰川科学观测中的应用研究  

Research on application of airborne LiDAR measurement technology in glacier scientific observation

作　　者：李启业[1] 陈耿[1] 岑铭[1] 文铮 毕研群 盘青坪 LI Qi-ye;CHEN Geng;CEN Ming;WEN Zheng;BI Yan-qun;PAN Qing-ping(Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China)

机构地区：[1]广西水利电力勘测设计研究院有限责任公司,南宁530023

出　　处：《广西水利水电》2024年第4期22-28,共7页Guangxi Water Resources & Hydropower Engineering

摘　　要：冰川作为“固态水库”其融水对我国西北干旱地区区域水资源利用和生态系统可持续发展都具有重要意义,开展冰川科学研究并努力探索冰川研究新技术、新方法至关重要。本文基于机载激光雷达测量技术在冰川科学观测中的应用研究,从航空测量经验、冰川试验区域气象条件及航飞设备三方面开展冰川航测可行性分析及技术方法论证。结果表明,冰川激光雷达数据平面及高程误差绝对值均以≤10 cm为主,占比分别为86.6%(X方向)、86.5%(Y方向)、66.6%(XY方向)、90.0%(Z方向),误差值满足冰川观测要求。此次冰川试验验证了机载激光雷达测量技术在冰川科学观测中的可行性,实现了高海拔、高落差、极端天气地区航空测量技术突破,为促进我国冰川科学研究发展增添新动力。As solid reservoirs,glaciers are of great significance for the utilization of water resources and sustainable development of ecosystems in the arid regions of northwest China.It is crucial to conduct scientific research on glaciers and explore new technologies and methods for glacier research.Based on the research on application of airborne LiDAR measurement technology in glacier scientific observation,the authors conducted the feasibility analysis and technical method demonstration of glacier aerial measurement from three aspects of aviation measurement experience,meteorological conditions in glacier test areas and aviation equipment.The results showed that the absolute errors in the plane and elevation of glacier LiDAR data were mainly≤10 cm,accounting for 86.6%in the X direction,86.5%in the Y direction,66.6%in the XY direction,and 90.0%in the Z direction respectively.The error values met the requirements for glacier observation.By this glacier experiment,the feasibility of applying airborne LiDAR measurement technology in glacier scientific observation was verified,breakthroughs in aerial measurement technology were achieved in areas with high altitude,high drop and extreme weather,adding new impetus to the development of glacier scientific research in China.

关 键 词：机载激光雷达测量技术 冰川观测 气象分析 应用试验 

分 类 号：TN958.98[电子电信—信号与信息处理] P343.6[电子电信—信息与通信工程]