• ISSN 2097-1893
  • CN 10-1855/P
周浩,罗志才,周泽兵,杨帆,郭向,李耀宗,郑李均,郑舒允. 2022. 利用卫星跟踪卫星观测数据确定时变重力场球谐解的发展趋势 . 地球与行星物理论评,53(3):243-256. DOI: 10.19975/j.dqyxx.2021-052
引用本文: 周浩,罗志才,周泽兵,杨帆,郭向,李耀宗,郑李均,郑舒允. 2022. 利用卫星跟踪卫星观测数据确定时变重力场球谐解的发展趋势 . 地球与行星物理论评,53(3):243-256. DOI: 10.19975/j.dqyxx.2021-052
Zhou H, Luo Z C, Zhou Z B, Yang F, Guo X, Li Y Z, Zheng L J, Zheng S Y. 2022. Progress of temporal gravity field model determination in terms of spherical harmonic coefficients via satellite-to-satellite tracking observations. Reviews of Geophysics and Planetary Physics, 53(3): 243-256. DOI: 10.19975/j.dqyxx.2021-052
Citation: Zhou H, Luo Z C, Zhou Z B, Yang F, Guo X, Li Y Z, Zheng L J, Zheng S Y. 2022. Progress of temporal gravity field model determination in terms of spherical harmonic coefficients via satellite-to-satellite tracking observations. Reviews of Geophysics and Planetary Physics, 53(3): 243-256. DOI: 10.19975/j.dqyxx.2021-052

利用卫星跟踪卫星观测数据确定时变重力场球谐解的发展趋势

Progress of temporal gravity field model determination in terms of spherical harmonic coefficients via satellite-to-satellite tracking observations

  • 摘要: 时变重力场综合反映了地球内部及表层物质的迁移特性,在地球科学领域应用广泛. 21世纪以来,多个重力卫星相继成功发射,为实现全球时变重力场连续监测提供了数据支撑. 利用重力卫星观测数据建立高精度时变重力场模型,是开展时变重力场相关科学应用的重要前提. 自重力卫星计划提出以来,国内外学者致力于卫星时变重力场建模理论及方法的研究,随着观测数据的精化和解算方法的改进,时变重力场模型的精度水平得以显著提升. 本文总结了近几十年来利用卫星跟踪卫星数据建立时变重力场球谐解的研究进展,重点围绕低低卫星跟踪卫星进行展开,包括建模基本原理和模型解算方法、观测数据的优化、背景摄动力模型的精化、解算方法的改进等,并给出了近年来尝试利用高低卫星跟踪卫星确定时变重力场的研究进展,最后探讨了下一代重力卫星计划的发展趋势,可为我国自主重力卫星数据处理和模型构建提供参考.

     

    Abstract: Temporal gravity field comprehensively reflects the migration characteristics of the earth's inner and shallow mass variations, which has been widely used in various geoscience applications. Since the 21st century, several gravimetric satellites have been successfully launched, supporting to continuously detecting global temporal gravity field. The way to determine temporal gravity field model in terms of spherical harmonic coefficients via satellite gravimetric data is the key issue, and it is the prerequisite to further promote numerous geoscience applications. Since the proposal of satellite gravimetry, scholars at home and abroad have been dedicated to studying the theories and methods of retrieving temporal gravity field model for several decades. Due to the refinement of observations and the improvement of retrieval methods, there are significant improvements of the accuracy of temporal gravity field models. This paper summarizes the research progress of determining temporal gravity field models via satellite tracking satellite data in recent decades. In terms of low-low satellite-to-satellite tracking scenario, we summarize the basic principle of retrieval method, the optimization process of observation datasets, the refinement of background force models and the improvement of retrieval methods. Meanwhile, the progress in terms of high-low satellite-to-satellite tracking scenarios is also presented, especially for temporal gravity field models determination. Finally, the future opportunities of the next generation gravimetric mission are discussed. Our findings could benefit the construction and development of autonomous gravity satellites in China.

     

/

返回文章
返回