Velocities are extracted from the crustal deformation data of CMONOC:
Zhao B, et al., Crustal deformation on the Chinese mainland during 1998-2004 based on GPS data, Geodesy and Geodynamics (2015) http://dx.doi.org/10.1016/j.geog.2014.12.006
The original horizontal velocities are respect to the Eurasia plate, calculte the absolute values by:
V = ΔV + ω × X
Where V is the absolute velocities vector of one GPS station, ΔV is velocities vector respected to Eurasia plate, ω is the Euler vector of Eurasia plate in ITRF2008, X is the coordinate vector of the station.
However, the reference frame of the calculted absolute velocities V is ITRF2008, transform them to ITRF2014 by:
. . .
V' = V + T + D·X + R·X
Where the dot (T, D, R) are transform parameters from ITRF2008 to ITRF2014, see:
Signification of the records:
- Lat: Latitude in angle degree;
- Lon: Longitude in angle degree;
- Vx: Velocity (mm/yr) in X component;
- Vy: Velocity (mm/yr) in Y component;
- Vz: Velocity (mm/yr) in Z component.