Re-Discussion on Motion of Shanghai VLBI Station Relative to Eurasian Plate From VLBI

By using the results of changing rate of the baseline lengths from Shanghai VLBI station to 13 international VLBI stations, respectively, the vertical and horizontal velocities of Shanghai VLBI station are re-estimated by means of the Least Square Fitmethod based on the international VLBI station velocities of ITRF96, and the Euler vectors of Eurasian tectonic plate of Sillard et al (1998).The result s are such the vertical velocity:-1.86±0.84 mm/yr, horizontal velocity and its local azimuth:14.24±0.97 mm/yr, E-12°.49±2°.98 S.If the NNR-NUVEL-1A model is used instead of the Euler vectors of Sillard et al., the corresponding results are such-1.86± 0.84 mm/y r, 10.56±0.96 mm/yr, E-16°.07±4°.06 S.In addition, the corresponding results for the Urumqi VLBI station are also estimated.