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对杨志根等人在2005年估计的全球6个并置VLBI站的相对形变率(特别是相对垂直形变率)结果与最近的VLBI全球解VTRF2005的相应结果作了比较。结果表明,北美Greenbank的NRAO20和NRAO85_3两个VLBI站之间每年3—4mm的相对垂直形变率和Westford的WEST- FORD和HAYSTACK两个VLBI站间每年1-2mm的相应结果可以进一步得到肯定;太平洋夏威夷岛的KOKEE和KAUAI两个VLBI站每年2～5mm的相对水平形变率和日本鹿岛的KASHIMA和KASHIM34两个VLBI站间每年1-2mm的相应结果也可以得到确认。然而,每年2—4mm的KASHIMA和KASHIM34站间的相对垂直形变率结果,在过去所有观测研究的结果中都被基本肯定,在VTRF2005中的结果中却几乎消失了,对其中可能的原因作了讨论。此外,对北美的FD-VL- BA和HRASO85两个VLBI站间的相对垂直形变率仍不能肯定,在不同的全球解中,FD-VLBA站的形变率解结果是基本稳定的,而HRASO85站在VTRF2005中的垂直形变率结果为(2．61±3．91) mm／a,与估计的结果符号相反,并且比在VTRF2003中的相应结果大了2．2mm／a,估计误差也大了近7倍。有关的结果还有待采用更新的资料进行讨论。
The relative deforming rate (especially the relative vertical deforming rate) of six global VLBI stations estimated by Yang et al in 2005 in the world was compared with the corresponding results of the recent VLBI global solution VTRF2005. The results show that the relative vertical deformation rate of 3-4 mm per year between two VLBI stations of NRAO20 and NRAO85_3 in Northbank of Greenbank, North America, and the corresponding results of 1-2 mm per year between two VLBI stations in Westford, WEST-FORD and HAYSTACK can be further affirmed. The Pacific Ocean The relative horizontal deformation rates of 2 to 5 mm per year for the two Kobayai and Kauai VLBI stations on the island of Hawaii and the corresponding 1-2 mm per year between the two VLBI stations of KASHIMA and KASHIM34 in Kashima, Japan can also be confirmed. However, the relative vertical deformation rate between KASHIMA and KASHIM34 stations of 2-4mm per year is almost always confirmed by the results of all observational studies in the past, almost disappeared in the results of VTRF2005, and the possible causes were discuss. In addition, the relative vertical deformation rates between the two VLBI stations of FD-VL-BA and HRASO85 in North America can not be affirmed. In different global solutions, the deformation rate of FD-VLBA stations is basically stable. The HRASO85 station The vertical strain rate in VTRF2005 was (2.61 ± 3.91) mm / a, opposite to the estimated result and 2.2 mm / a larger than the corresponding result in VTRF2003, with a large estimation error Nearly 7 times. Relevant results have yet to be updated with the information to be discussed.