EPN Multi-year Position and Velocity Solutions

EUREF releases, each 15 weeks, an update of multi-year coordinates/velocities of the EPN stations in the latest ITRS/ETRS89 realizations. The Reference Frame Coordinator computes the EPN multi-year position and velocity solutions with the CATREF software (Altamimi et al., 2007).欧洲参考框架（EUREF）每15周发布一次基于最新国际地球参考系统（International Terrestrial Reference System，ITRS）与欧洲地球参考框架1989（ETRS89）实现版本的欧洲永久观测站网（European Permanent Network，EPN）测站的多年坐标与速度更新成果。参考框架协调员使用CATREF软件（Altamimi等，2007）计算得到EPN的多年位置与速度解算结果。