作者:Zhangzhen Sun,Tianhe Xu,Shi'e Zhou,Nan Jiang,Chunhua JiangYuguo Yang

来源出版物:Journal of Spatial Science卷:期:文献号:DOI:10.1080/14498596.2020.1715273出版年:Jan 2020

摘要:February 1, 2017, EOP 14C04 aligned to the ITRF2014 was adopted by IERS. To assess the improvement of EOP 14C04, the differences between EOP 14C04 and EOP 08C04 are firstly analyzed. Then, the causes of the differences between the two solutions are examined. Finally, the differences are further assessed for their prediction performance using the LS+AR model. The results demonstrate that (1) there is a trend in the difference between the two solutions; (2) the cause of the above-mentioned difference should be attributed to the different reference frames; (3) the new EOP 14C04 shows better performance for high-frequency signals.

KEYWORDS:Earth rotation parameters,EOP 14C04,ITRF2014,LS+AR model,high-frequency variation

Citations: Zhangzhen Sun, Tianhe Xu, Shi'e Zhou, Nan Jiang, Chunhua Jiang & Yuguo Yang (2020): Analysis on the differences between EOP 08C04 and EOP 14C04 related to the Earth rotation characteristics, Journal of Spatial Science, DOI: 10.1080/14498596.2020.1715273