Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 49101-049101.doi: 10.1088/1674-1056/22/4/049101

• GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS • 上一篇    下一篇

Efficient and rapid accuracy estimation of the Earth's gravitational field from next-generation GOCE Follow-On by the analytical method

郑伟a, 许厚泽a, 钟敏a, 刘成恕a, 员美娟b   

  1. a State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China;
    b Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China
  • 收稿日期:2012-06-13 修回日期:2012-11-01 出版日期:2013-03-01 发布日期:2013-03-01
  • 基金资助:
    Project supported by the Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences for Distinguished Young Scholar (Grant No. KZCX2-EW-QN114), the National Natural Science Foundation of China for Young Scholar (Grant Nos. 41004006, 41131067, 11173049, and 41202094), the Merit-based Scientific Research Foundation of the State Ministry of Human Resources and Social Security of China for Returned Overseas Chinese Scholars (Grant No. 2011), the Open Research Fund Program of the Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences (Grant No. 2011-04), the Open Research Fund Program of the Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, China (Grant No. 11-01-02)

Efficient and rapid accuracy estimation of the Earth's gravitational field from next-generation GOCE Follow-On by the analytical method

Zheng Wei (郑伟)a, Hsu Hou-Tse (许厚泽)a, Zhong Min (钟敏)a, Liu Cheng-Shu (刘成恕)a, Yun Mei-Juan (员美娟)b   

  1. a State Key Laboratory of Geodesy and Earth's Dynamics, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430077, China;
    b Department of Applied Physics, Wuhan University of Science and Technology, Wuhan 430081, China
  • Received:2012-06-13 Revised:2012-11-01 Online:2013-03-01 Published:2013-03-01
  • Contact: Zheng Wei E-mail:wzheng@asch.whigg.ac.cn
  • Supported by:
    Project supported by the Main Direction Program of Knowledge Innovation of Chinese Academy of Sciences for Distinguished Young Scholar (Grant No. KZCX2-EW-QN114), the National Natural Science Foundation of China for Young Scholar (Grant Nos. 41004006, 41131067, 11173049, and 41202094), the Merit-based Scientific Research Foundation of the State Ministry of Human Resources and Social Security of China for Returned Overseas Chinese Scholars (Grant No. 2011), the Open Research Fund Program of the Key Laboratory of Computational Geodynamics of Chinese Academy of Sciences (Grant No. 2011-04), the Open Research Fund Program of the Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, China (Grant No. 11-01-02)

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摘要： Firstly, a new analytical error model of the cumulative geoid height using the three-dimensional diagonal tensors of satellite gravity gradiometry (SGG) is introduced based on the variance-covariance matrix principle. Secondly, a study for the requirements demonstration on the next-generation GOCE Follow-On satellite gravity gradiometry system is developed using different satellite orbital altitudes and measurement accuracies of satellite gravity gradiometer by the new analytical error model of SGG. The research results show that it is preferable to design satellite orbital altitudes of 300 km-400 km and choose the measurement accuracies of 10-13/s2-10-15/s2 from satellite gravity gradiometer. Finally, the complementarity of the four-stage satellite gravity missions, including past CHAMP, current GRACE, and GOCE, and next-generation GOCE Follow-On, is contrastively demonstrated for precisely recovering the Earth's full-frequency gravitational field with high spatial resolution.

关键词: GOCE Follow-On satellite, analytical method, requirements demonstration, satellite gravity gradiometry, Earth's gravitational field

Abstract: Firstly, a new analytical error model of the cumulative geoid height using the three-dimensional diagonal tensors of satellite gravity gradiometry (SGG) is introduced based on the variance-covariance matrix principle. Secondly, a study for the requirements demonstration on the next-generation GOCE Follow-On satellite gravity gradiometry system is developed using different satellite orbital altitudes and measurement accuracies of satellite gravity gradiometer by the new analytical error model of SGG. The research results show that it is preferable to design satellite orbital altitudes of 300 km-400 km and choose the measurement accuracies of 10-13/s2-10-15/s2 from satellite gravity gradiometer. Finally, the complementarity of the four-stage satellite gravity missions, including past CHAMP, current GRACE, and GOCE, and next-generation GOCE Follow-On, is contrastively demonstrated for precisely recovering the Earth's full-frequency gravitational field with high spatial resolution.

Key words: GOCE Follow-On satellite, analytical method, requirements demonstration, satellite gravity gradiometry, Earth's gravitational field

中图分类号:  (Geodesy and gravity)

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