RENAG GNSS combined velocity field

The combined GNSS velocity field "RENAG22" aims at unifying and comparing all GNSS velocity estimates for the stations of the SNO RENAG permanent network and, by extension, of all permanent GNSS stations on the European territory of France. The combined solution is computed from the available GNSS velocity fields made available by 14 national and foreign groups. Among the national groups, the combined RENAG22 velocity field includes the velocity solutions of different OSUs and laboratories participating in the SNO RENAG (EOST, OCA, OMP, OREME, OSUG, ULR), the solution of the IGN's RGP network, as well as European solutions realized by French groups (at EOST and OSUG). Among the velocity fields made abroad, the combined RENAG22 solution includes the European reference frame solution (EUREF), as well as its densification (EPND), and the PPP velocity fields from JPL, NGL and INGV.

In total, the combined RENAG22 solution gathers at least one velocity estimate for 693 GNSS stations. In addition to that, the combined RENAG22 solution includes several velocity estimates per station, giving access to the evaluation of the velocity repeatability for 473 stations having at least 4 different velocity estimates. The typical repeatability of the velocities, for stations with at least 4 estimates, is 0.1 and 0.3 mm/year for horizontal and vertical velocities.

See the PDF combination report for further details (only in French yet).

Files of the RENAG2022 solution provided:

- RENAG22.ITRF2014.velocity : combined velocity field in ITRF2014.
- RENAG22.ETRF2014.velocity : combined velocity field in ETRF2014.
- RENAG22.residuals : velocity residuals per station and solution with respect to the combined solution.
- RENAG22.outliers : rejected stations with their velocity residual.
- RENAG22.wrms_site : repeatability (WRMS) of velocity estimates per station.
- RENAG22.wrms_solution : repeatability (WRMS) of velocity estimates per solution.
- RENAG22.renames : renamed stations per solution.