摘要
采用上海天文台VLBI站与国际上 13个VLBI站之间的基线长度变化率的测定结果 ,估计了上海VLBI站相对于欧亚板块稳定区的地壳垂直形变速率。基于ITRF96国际地球参考架的站速度矢量 ,得到上海VLBI站及其附近地区的地壳垂直形变速率为每年 - 1.86± 0 .83mm。这个结果表明上海天文台VLBI站附近地区的地壳垂直运动存在约每年 2mm的下降运动。
Using the results of changing rate of the baseline lengths between Shanghai VLBI station and 13 international VLBI stations, the vertical deformation velocity of Shanghai VLBI station is estimated by means of the Least Square Fit method, in which the international VLBI station velocities of the ITRF96 are used as the references. The result is such the vertical velocity: -1.86±0.83mm/a, which represents that the area near Shanghai VLBI station is vertically subsiding with a velocity of about 2 mm/a.
出处
《中国科学院上海天文台年刊》
2000年第0期13-18,共6页
Annals Shanghai Astronomical Observatory Chinese Academy of Sciences
基金
国家攀登项目!"现代地壳运动和地球动力学研究"(970 2 310 0 3)
自然科学基金重点项目!"空间技术检测和综合研究大气和海洋变化"(
