利用GPS数据反演地心运动

基金项目: 国家863计划资助项目(2009AA121401)

详细信息

Geocenter Motion from GPS Data

¹ School of Geodesy and Geomatics,Wuhan University,129 Luoyu Road,Wuhan 430079,China;² Research Center of GNSS,Wuhan University,129 Luoyu Road,Wuhan 430079,China

Funds: 国家863计划资助项目(2009AA121401)

摘要: 利用IGS提供的重新处理的周解,采用一阶形变法反演了2000～2009年的地心运动。结果表明,X、Y、Z方向的周年项振幅分别为3.72mm,3.06mm和8.95mm;Z方向的相位表明,2月份左右北半球的表面负载最大,8月份左右南半球的表面负载最大,南北半球存在明显的季节性质量交换。
- 地心运动 /
- 一阶形变法 /
- 网平移法
Abstract: By Degree-1 deformation approach,this paper inverses geocenter motion using reprocessed IGS weekly solution from 2000 to 2009.Results shows that annual amplitudes are 3.72 mm,3.06 mm and 8.95 mm in X,Y and Z direction respectively.And the maximum mass load within northern hemisphere is during February,and that of southern hemisphere is during August.
- geocenter motion /
- degree-one deformation approach /
- network shift approach