The rotation of the gravity potential on the Earth's gravity field recovery | |
Cheng, L. Y. ; Xsu, H. Z. | |
刊名 | Chinese Journal of Geophysics-Chinese Edition
![]() |
2006 | |
期号 | 1页码:93-98 |
中文摘要 | We analyze the effect of approximate velocity in the formula of the rotation of the gravity potential, which is caused by the Earth rotation. We compute the difference between the satellite ephemeris's velocity and numerical integral's velocity. The ephemeris data come from GFZ's Rapid Science Orbit, TUM's Reduced-Dynamic Orbit, and GFZ's Post-processed Science Orbit respectively. The integral data are obtained based on the reference gravity Field models EGM96, EIGEN2, and EIGEN-CGO1C, respectively. The fitting between ephemeris velocity and integral velocity depended on EIGEN2 reference gravity field model is better than the EGM96 and EIGEN-CGO1C model. The variations of velocity difference have obvious periodicity, which coincides with the satellite orbit period. When the disturbing potential of 1m(2)/s(2) accuracy, or the approximate velocity of accuracy less 2mm/s in the formula of the rotation of the gravity potential is required, the satellite orbit data not satisfied the potential rotation computing demand are rejected from the GFZ's Rapid Science Orbit and TUM's Reduced-Dynamic Orbit. If the disturbing potential is desired 0.5m(2)/s(2) at satellite track, the satellite velocity required in formula of the rotation of the gravity potential should be re-computed or the GFZ's Post-processed Science Orbit is adopted. |
原文出处 | |
公开日期 | 2012-04-11 |
内容类型 | 期刊论文 |
源URL | [http://ir.whigg.ac.cn/handle/342008/3017] ![]() |
专题 | 测量与地球物理研究所_其他_期刊论文 |
推荐引用方式 GB/T 7714 | Cheng, L. Y.,Xsu, H. Z.. The rotation of the gravity potential on the Earth's gravity field recovery[J]. Chinese Journal of Geophysics-Chinese Edition,2006(1):93-98. |
APA | Cheng, L. Y.,&Xsu, H. Z..(2006).The rotation of the gravity potential on the Earth's gravity field recovery.Chinese Journal of Geophysics-Chinese Edition(1),93-98. |
MLA | Cheng, L. Y.,et al."The rotation of the gravity potential on the Earth's gravity field recovery".Chinese Journal of Geophysics-Chinese Edition .1(2006):93-98. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论