EPOS GNSS

ROB-EUREF

Background: The primary purpose of the EUREF Permanent Network is to provide access to the European Terrestrial Reference System 89 (ETRS89) which is the standard precise GNSS coordinate system throughout Europe.

To maintain the ETRS89, ROB computes the EUREF Reference Frame product which is one of the core products of EUREF, the IAG (International Association of Geodesy) Reference Frame sub-commission for Europe. It consists of the precise multi-year positions and velocities of the EPN stations expressed in the latest ITRS/ETRS89 realization.

Input: EPN daily combined SINEX files provided by WUT-EUREF

Updated: each 15 weeks

Methodology: Computed with the CATREF software (Altamimi et al., 2007) and expressed in the IGS 14 frame using minimal constraints. Outliers have been eliminated and jumps in the position time series have been accounted for.

More details: from EPN Central Bureau at epncb.oma.be and in the following report


Service

This service allows users to download GNSS velocities generated by the ROB-EUREF analysis center.

The data can be filtered using search parameters such as coordinates and dates.

Reference Frame and Output Components

Velocities are provided with respect to a no-net-rotation global terrestrial reference frame. They are returned in the local components East (E), North (N), and Up (U), or alternatively in Cartesian components (X, Y, Z), together with the associated uncertainties:

  • Standard deviations for each component (SE, SN, SU)
  • Correlations between components (RNE, RNU, REU)

Table – shows all selected stations selected, including the following fields:

  • GNSS Station ID; dn/dt; de/dt; du/dt; First epoch; Last epoch; Reference frame; software;

and can display these fields if they are selected (X):

  • DOI; Release Version; Method URL; Unit; Reference epoch; ref_x; ref_y; ref_z; ref_nlat; ref_elong; ref_up; dx/dt; dy/dt; dz/dt; sxd; syd; szd; rxy; rxz; ryz; snd; sed; sud; rne; rnu; reu; M3G; DGW;
More information about the solution provided: (here)
How to cite: 

Legrand, J. (2022). EPN Multi-year Position and Velocity Solutions [Dataset]. Royal Observatory of Belgium (ROB). https://doi.org/10.24414/ROB-EUREF-CWWWW.

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Other Links

Information about all solutions provided by ICS-TCS-GNSS group can get here

Information about all services provided by ICS-TCS-GNSS group can get here.