Pulkovo’s velocity database of the GNSS station and its scientific potential: geodynamics

Abstract

The paper presents the composition and main characteristics of the velocity database (VDB) for about 900 GNSS stations. The VDB is developed and maintained in Pulkovo observatory for stations which are in the territory approximately coinciding with the East European Craton (EEC). More than 70% of stations belong to Russian GNSS networks. The comparison of the VDB velocities with a similar global database of the Nevada Geodetic Laboratory (NGL, USA) for 171 common stations does not detect any systematic discrepancies between them. This fact allows us to use combined data from both DB for geodynamic studies in the EEC region. The kinematic parameters of rotation of some structural blocks of the EEC have been determined. The boundaries of these blocks varied within several degrees, and within these boundaries, stations were selected according to the duration of observations to minimize errors in the least squares solution.