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Influence of Time-Varying Atmospheric Admittance on Earth Tide
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Lizhuo GONG1, 2, Weiwei YANG1, 2, Xiaoming CUI1, 2, Heping SUN1, 2
Journal of Geodesy and Geodynamics | 2025, 45(12) : 1304 - 1309, 1316
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Journal of Geodesy and Geodynamics | 2025, 45(12): 1304-1309, 1316
Influence of Time-Varying Atmospheric Admittance on Earth Tide
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Lizhuo GONG1, 2, Weiwei YANG1, 2, Xiaoming CUI1, 2, Heping SUN1, 2
Affiliations
  • 1 State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, 340 Xudong Street, Wuhan 430077, China
  • 2 University of Chinese Academy of Sciences, A19 Yuquan Road, Beijing 100049, China

    • GONG Lizhuo, PhD candidate, majors in Earth’s free oscillations, E-mail:

About Author:

GONG Lizhuo, PhD candidate, majors in Earth’s free oscillations, E-mail:

Published: 2025-12-15 doi: 10.14075/j.jgg.2025.01.016
Outline
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We utilize long-term observation data from five superconductor gravimeters in China and Europe within the IGETS network, and apply various atmospheric pressure correction strategies to analyze the impact of time-varying admittance on the determination of Earth tide parameters. The results show that the temporal variability of admittance significantly influences Earth tide parameters, with effects on time-varying characteristics of the Earth's free core nutation period reaching up to 10 sidereal days. Taking into account the time-varying characteristics of admittance and global atmospheric pressure effects correction, the tidal wave amplitude factor is found to be closer to theoretical values. This has important implications for the construction of regional tidal models and subtle dynamic signals analysis.

atmospheric admittance  /  superconductor gravimeter  /  tidal model  /  solid tide  /  free core nutation
龚立卓, 杨伟伟, 崔小明, 孙和平. 时变导纳值对固体潮分析的影响. 大地测量与地球动力学, 2025 , 45 (12) : 1304 -1309, 1316 . DOI: 10.14075/j.jgg.2025.01.016
Lizhuo GONG, Weiwei YANG, Xiaoming CUI, Heping SUN. Influence of Time-Varying Atmospheric Admittance on Earth Tide[J]. Journal of Geodesy and Geodynamics, 2025 , 45 (12) : 1304 -1309, 1316 . DOI: 10.14075/j.jgg.2025.01.016
Funding
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  • National Natural Science Foundation of China(42394114)
  • National Natural Science Foundation of China(42174108)
  • the Young Top-Notch Talent Cultivation Program of Hubei Province
Appendix
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Year 2025 volume 45 Issue 12
40
19
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Article Info
doi: 10.14075/j.jgg.2025.01.016
  • Receive Date：2025-01-21
  • Online Date：2026-10-29
  • Published：2025-12-15
Article Data
Affiliations
History
  • Received：2025-01-21
Funding
National Natural Science Foundation of China(42394114)
National Natural Science Foundation of China(42174108)
the Young Top-Notch Talent Cultivation Program of Hubei Province
Affiliations
    1 State Key Laboratory of Precision Geodesy, Innovation Academy for Precision Measurement Science and Technology, 340 Xudong Street, Wuhan 430077, China
    2 University of Chinese Academy of Sciences, A19 Yuquan Road, Beijing 100049, China
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https://castjournals.cast.org.cn/joweb/ddcl/EN/10.14075/j.jgg.2025.01.016
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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
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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
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