云南省卫星定位基准站网速度场分析
Velocity Field Analysis of Satellite Positioning Reference Station Network in Yunnan Province
史珂 1李建涛2
作者信息
- 1. 云南省基础测绘技术中心,云南 昆明 650034
- 2. 乌鲁木齐市城市勘察测绘院,新疆 乌鲁木齐 830017
- 折叠
摘要
利用云南省卫星导航定位基准站网系统(YNCORS)2016 至 2020年近 5年 99 个基准站观测数据,采用GAMIT/GLOBK软件处理,解算得到了基准站的坐标时间序列和不同框架下的速度场.结果表明,云南省基准站ITRF2014 框架下东方向平均运动速度 31.84 mm/a,南方向平均运动速度为 13.09 mm/a,整体运动方向为东偏南方向.以欧亚板块为运动背景场框架下的东方向平均运动速度 6.83 mm/a,南方向平均运动速率 3.91 mm/a;滇西南运动速率较小并且有着左旋的趋势,滇西区域运动速率较大并且明显存在着右旋的趋势.
Abstract
Based on the GNSS observation data of 99 reference stations in Yunnan Province Continuous Operation Reference Station Net-work system(YNCORS)from 2017 to 2020,using GAMIT/GLOBK software,the coordinate time series of the reference station and velocity fields under different frames are solved.The results show that under the framework of ITRF14 of Yunnan Reference station,the average moving speed in the east direction is 31.84mm/a,and the average moving speed in the south direction is 13.09mm/a.The overall moving direction is in the east-south direction.Under the framework of Eurasian plate as the moving background field,the average moving speed in the east direc-tion was 6.83mm/a,and the average moving speed in the south direction was 3.91mm/a.The movement rate in southwest Yunnan is small and has a tendency of left rotation,while the movement rate in west Yunnan is large and has a tendency of right rotation.
关键词
卫星定位基准站/时间序列/噪声/框架/速度场Key words
continuous operational reference system(CORS)/time series/noise/the framework/velocity field引用本文复制引用
出版年
2024
NETL
NSTL
万方数据