巧家地震对周边卫星导航定位基准站稳定性的影响分析  

Analysis of Influence of Qiaojia Earthquake on Stability of Surrounding CORS Reference Stations

作　　者：李强[1] 杨立辉 马宣 LI Qiang;YANG Li-hui;MA Xuan(Jinghong Institute of Land and Resources,Jinghong Yunnan 666100,China;Kunming Surveying and Mapping Management Center,Kunming Yunnan 650500,China)

机构地区：[1]景洪市国土资源勘测规划所,云南景洪666100 [2]昆明市测绘管理中心,云南昆明650500

出　　处：《地矿测绘》2021年第3期16-19,共4页Surveying and Mapping of Geology and Mineral Resources

摘　　要：2020年5月18日,云南省巧家县发生5.0级地震。为了解地震对周边卫星导航定位基准站稳定性的影响情况,选取了周边4个基准站震前、震后共7天的观测数据,经GAMIT基线解算和GLOBK平差后得到日解坐标较差,分析了震前、震后基准站的坐标位移量。On May 18,2020,a 5.0-magnitude earthquake occurred in Qiaojia County,Zhaotong City,Yunnan Province.In order to study the influence of earthquake on the surrounding satellite navigation and positioning reference stations,the 7-day observation data of the four surrounding reference stations before and after the earthquake was selected.After GAMIT baseline calculation and GLOBK adjustment,the daily solution coordinate difference was obtained,and the coordinate displacement of reference stations before and after the earthquake was analyzed.

关 键 词：地震 卫星导航定位基准站 GAMIT GLOBK 坐标位移 

分 类 号：P228.4[天文地球—大地测量学与测量工程]