Long-Term Stability of Reference Stations by Taking Non-tectonic Deformation into AccountChinese Full Text
QIAN Chuang;LIU Hui;DING Zhigang;ZHENG Hongyan;Research Center of GNSS,Wuhan University;Shandong CompStar Navigation Technology Co.;
Abstract: Continuously operating reference stations can provide continuous and reliable original data for surface displacement studies.Multiple reference stations’ position time series（Coordinate time series）may reflect surface subsidence and movement trends in the region,and is the basis for further research on linear and non-linear change in the movement.In this paper,continuously operating reference station network in Jiangxi（JXCORS）is researched as an example.The phenomena of linear and non-linear changes in Jiangxi were studied based on the establishment of the position series for three years at each reference station.For the linear variation,local plane deformation is small（The difference of average rate and dominant direction with the nearby sites are less than 1mm/a and 1.63°respectively,the change of elevation direction is comparative stable）.The average lifting speed and settlement speed are 1.887mm/a and 0.906mm/a respectively.For the non-linear change,the vertical position of the reference stations has a semi-annual cycle,which is partially caused by hydrological load.
- DOI：
10.13203/j.whugis20130715
- Series：
- Subject：
- Classification Code：
P228.4
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