摘要
CORS站是提供高精度定位的重要基础设施,目前对沿海区域CORS站稳定性分析的成果相对较少,因此开展沿海区域CORS站稳定性分析具有重要价值。该研究使用2016—2018年的广西北部湾沿海区域CORS站观测数据,借助GAMIT/GLOBK软件开展CORS站稳定性分析。研究表明:ITRF2014框架下CORS站水平方向作南东东方向运动,平均运动速率35.57 mm/a,与广西区域现今地壳构造运动一致;区域CORS站水平形变速率整体小于1.7 mm/a,CORS站具有较好的稳定性。根据形变场分析结果,建议对区域CORS站实行每年一次框架坐标更新。
CORS stations are important infrastructures for providing high-precision positioning,and there are relatively few results on the stability analysis of CORS stations in the coastal region,so it is of great value to carry out the stability analysis of CORS stations in the coastal region.In this paper,we use the CORS station observation data of coastal region in Beibu Gulf of Guangxi from 2016 to 2018 to carry out CORS station stability analysis with the help of GAMIT/GLOBK software.The study shows that the horizontal direction of CORS stations under the framework of ITRF2014 moves in a south-east-east direction with an average motion rate of 35.57 mm/a,which is consistent with the presentday crustal tectonic motion in Guangxi region;the overall horizontal deformation rate of regional CORS stations is less than 1.7mm/a,and the CORS stations have good stability.According to the results of deformation field analysis,it is suggested to update the frame coordinates of the regional CORS station once a year.
作者
廖超明
凌聪聪
吕新强
梁自良
于斌
胡金刚
LIAO Chao-ming;LING Cong-cong;LV Xin-qang;LIANG Zi-liang;YU Bin;HU Jin-gang(School of Natural Resources and Surveying,Nanning Normal University,Nanning 530001,China;Natural Resources Information Center of Guangxi,Nanning 530022,China;Institute of Guangxi Natural Resources Remote Sensing,Nanning 530001,China;City Information Center of Beihai,Beihai 536000,China)
出处
《南宁师范大学学报（自然科学版）》
2022年第3期53-58,共6页
Journal of Nanning Normal University：Natural Science Edition
基金
国家自然科学基金(42164001)
广西创新驱动发展专项资金项目(桂科AA19254029)
2022年本科教育教学重点项目建设经费(602030389173301)。
关键词
CORS站稳定性
基线
坐标时间序列
形变场
CORS station stability
baseline
coordinate time series
deformation field
