地震研究

介绍了目前处理框架问题的3种参考基准方法:单点基准法、重心基准法、相对稳定点组基准法,并分别用这3种方法对云南境内28个GNSS基准站,近2年观测数据进行试算、验证,并对不同参考基准解算得到的位移场作了比较分析。结果表明,选择位于华南块体的文山GNSS基准站作为云南GPS位移数据处理的参考基准是可行的。

We introduced three methods for resolving reference frame problem,such as datum with single point,datum in the centre of gravity,datum relative to stable point. Then,we calculated and compared the displacement field based on the observation data recorded by 28 GNSS Reference Station in Yunnan for two years using these three reference frame methods. The result shows that it is feasible to choose GNSS Reference Station in Wenshan which located in the Southern China block as the reference datum of GPS displacement data processing in Yunnan.

引言
1 全球框架下位移数据处理
2 区域性地壳运动基准的确定方法
3 算例及结果分析
4 结论

图1 ITRF2000参考框架下各基准站的水平位移<br/>Fig.1 Horizontal displacements of reference stations in Yunnan based on ITRF2000 reference frame

图1 ITRF2000参考框架下各基准站的水平位移
Fig.1 Horizontal displacements of reference stations in Yunnan based on ITRF2000 reference frame

表1 不同参考基准下云南省各基准站相对位移结果<br/>Tab.1 Relative displacement results of reference stations in Yunnan based on different reference datum

表1 不同参考基准下云南省各基准站相对位移结果
Tab.1 Relative displacement results of reference stations in Yunnan based on different reference datum

图2 相对文山单一基准的位移场<br/>Fig.2 Displacement field based on datum of single Wenshan Station

图2 相对文山单一基准的位移场
Fig.2 Displacement field based on datum of single Wenshan Station

图3 相对重心基准的位移场<br/>Fig.3 Displacement field based on the datum in the center of gravity

图3 相对重心基准的位移场
Fig.3 Displacement field based on the datum in the center of gravity

图4 相对外部稳定点组(华南块体)基准的位移场<br/>Fig.4 Displacement field based on the datum relative to external stable point sets(Southern China block)

图4 相对外部稳定点组(华南块体)基准的位移场
Fig.4 Displacement field based on the datum relative to external stable point sets(Southern China block)

图5 相对内部稳定点组基准的位移场<br/>Fig.5 Displacement field based on the datum relative to internal stable point sets

图5 相对内部稳定点组基准的位移场
Fig.5 Displacement field based on the datum relative to internal stable point sets

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备注

引言

1 全球框架下位移数据处理

2 区域性地壳运动基准的确定方法

3 算例及结果分析

4 结论

期刊信息