Home Journals Articles Updates About
CN
image
收藏切换
A Review of Polar Motion Measurement Techniques: From Traditional Methods to Modern Innovations
收藏切换
Yifan CHEN1, 2, 3, 4, 5, Kui LIU1, 2, 3, 4, 5, *, Zhu LI1, 2, 3, 4, 5, Su ZHAN1, 2, 3, 4, 5, Cancan XU6, Min ZHONG6, Liangcheng TU1, 2, 3, 4, 5
Journal of Geodesy and Geodynamics | 2026, 46(8) : 979 - 995
Less
收藏切换
Journal of Geodesy and Geodynamics | 2026, 46(8): 979-995
A Review of Polar Motion Measurement Techniques: From Traditional Methods to Modern Innovations
Full
Yifan CHEN1, 2, 3, 4, 5, Kui LIU1, 2, 3, 4, 5, *, Zhu LI1, 2, 3, 4, 5, Su ZHAN1, 2, 3, 4, 5, Cancan XU6, Min ZHONG6, Liangcheng TU1, 2, 3, 4, 5
Affiliations
  • 1 TianQin Research Center for Gravitational Physics, Sun Yat-Sen University, Zhuhai 519082, China
  • 2 School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, China
  • 3 MOE Key Laboratory of TianQin Mission, Zhuhai 519082, China
  • 4 Frontiers Science Center for TianQin, Zhuhai 519082, China
  • 5 Gravitational Wave Research Center of CNSA, Zhuhai 519082, China
  • 6 School of Geospatial Engineering and Science, Sun Yat-Sen University, Zhuhai 519082, China
Published: 2026-08-15 doi: 10.14075/j.jgg.2025.11.368
Outline
收藏切换

Polar motion (PM) is not only a critical parameter linking the terrestrial reference system (TRS) and the celestial reference system (CRS), but also an important physical basis for exploring processes such as material movement and angular momentum exchange in the Earth system. As a core parameter describing the Earth rotation movement, the precise PM determination is essential for aerospace activities, and also provides an important theoretical basis for understanding the complex dynamical processes of the Earth system, predicting climate change, and monitoring seismic activity. We review traditional optical measurements, space geodesy, and the emerging inertial measurement technology based on large ring laser gyroscope (RLG), evaluate their principles and progress, and discuss the advantages of multi-technique fusion measurement to provide a comprehensive reference for research and application in PM measurement. Among them, the RLG has emerged as a prominent technology due to their characteristics of direct, independent, and real-time measurement of rotation signals, enabling high-precision measurement of Earth rotation signals such as polar motion.

polar motion  /  Earth rotation parameters  /  VLBI  /  GNSS  /  large ring laser gyroscope  /  multi-technique fusion
陈一凡, 柳奎, 李祝, 詹苏, 胥灿灿, 钟敏, 涂良成. 极移测量技术综述：从传统方法到现代创新. 大地测量与地球动力学, 2026 , 46 (8) : 979 -995 . DOI: 10.14075/j.jgg.2025.11.368
Yifan CHEN, Kui LIU, Zhu LI, Su ZHAN, Cancan XU, Min ZHONG, Liangcheng TU. A Review of Polar Motion Measurement Techniques: From Traditional Methods to Modern Innovations[J]. Journal of Geodesy and Geodynamics, 2026 , 46 (8) : 979 -995 . DOI: 10.14075/j.jgg.2025.11.368
Appendix
Less
Year 2026 volume 46 Issue 8
28
11
Cite this Article
BibTeX
Article Info
doi: 10.14075/j.jgg.2025.11.368
  • Receive Date：2025-11-03
  • Online Date：2026-10-30
  • Published：2026-08-15
Article Data
Affiliations
History
  • Received：2025-11-03
Funding
Affiliations
    1 TianQin Research Center for Gravitational Physics, Sun Yat-Sen University, Zhuhai 519082, China
    2 School of Physics and Astronomy, Sun Yat-Sen University, Zhuhai 519082, China
    3 MOE Key Laboratory of TianQin Mission, Zhuhai 519082, China
    4 Frontiers Science Center for TianQin, Zhuhai 519082, China
    5 Gravitational Wave Research Center of CNSA, Zhuhai 519082, China
    6 School of Geospatial Engineering and Science, Sun Yat-Sen University, Zhuhai 519082, China
References
Share
https://castjournals.cast.org.cn/joweb/ddcl/EN/10.14075/j.jgg.2025.11.368
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House