根据SOPAC提供的GPS坐标时间序列,对2001~2010年选取的中国区域的11个IGS测站,采用GGFC发布的环境负载格网模型,分别计算出中国区域测站的GPS坐标时间序列的大气、非潮汐海洋、水文系统的3种环境负载,并对SOPAC提供的中国区域GPS坐标时间序列进行修正。最后通过对数据的分析讨论了IGS测站由于地理位置差异产生的同类环境负载位移的变化趋势与数值上的差异。
Based on the environmental load grid model offered by GGFC,this paper deals with the raw data calculations,calculates atmospheric loading,non-tidal ocean loading and hydrology loading,and correctes China's regional time series of GPS coordinate time series(2001 to 2010) provided by SOPAC. Finally,the same kind of environmental loading motion changing trend induced by the location of IGS stations and the difference in numerical are discussed.