中国现今板块运动对陆态网基准站稳定性影响

摘要

The whole drift of the continental plate and mutual movement between the two plates will inevitably affect the stability of the reference station in the tectonic environment monitoring network in China .In this paper ,the velocity of each station is calculated by using the latest 5 years' land data base station observation data ,and the movement trend of the two-stage plate is analyzed .The results show that there is a difference between the velocity of the plates , especially the plate movement in the Sichuan&Yunnan region .Most of the stations with poor stability in terrestrial networks are located at the junction between the plates .%中国大陆板块的整体漂移及其二级板块之间的相互运动必然会对大陆构造环境监测网络中的基准站稳定性造成一定的影响.本文使用最新5年的陆态网连续基准站观测数据计算出各站点的速度,从而分析二级板块的运动趋势;并利用极限误差椭圆法对陆态网中各基准站进行逐个分析,判断其稳定性.结果表明:各板块间的运动速度存在差异,特别是川滇地区板块运动相对活跃;陆态网中稳定性较差的台站大部分是分布在板块与板块的交接处.