Earth's free core nutation determined using C032 superconducting gravimeter at station Wuhan/China
文献类型：期刊论文
| 作者 | Sun, H. P. ; Jentzsch, G. ; Xu, J. Q. ; Hsu, H. Z. ; Chen, X. D. ; Zhou, J. C. |
| 刊名 | Journal of Geodynamics
 |
| 出版日期 | 2004 |
| 期号 | 3-5页码:451-460 |
| 中文摘要 | The long series tidal gravity observations from 1997 to 2002 recorded with C032 superconducting gravimeter (SG) at station Wuhan/China are used in order to study the Earth's geodynamics. The tidal gravity parameters are determined precisely using Eterna software package after careful data pre-processing. The Earth's free core nutation (FCN) resonant parameters (eigenperiods, quality factors and resonant strengths) are determined accurately. The results show the determined eigenperiod to be 431.0 sidereal days with an accuracy of +/-1.81%, the quality factor is a negative one as of -7002, and the resonance strength can be explained by the elastic property of the Earth's mantle. The discrepancy of the eigenperiods when using various ocean models can amount to +/-1.8%. The 30 sidereal days difference between the determined eigenperiod in this paper and the one in theoretical computation given by Wahr and Bergen can be explained by the real dynamic ellipticity of the Earth's liquid core, i.e., it is about 5% larger than the one under the hydrostatic equilibrium assumption. (C) 2004 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.whigg.ac.cn/handle/342008/3262]  |
| 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 | Sun, H. P.,Jentzsch, G.,Xu, J. Q.,et al. Earth's free core nutation determined using C032 superconducting gravimeter at station Wuhan/China[J]. Journal of Geodynamics,2004(3-5):451-460. |
| APA | Sun, H. P.,Jentzsch, G.,Xu, J. Q.,Hsu, H. Z.,Chen, X. D.,&Zhou, J. C..(2004).Earth's free core nutation determined using C032 superconducting gravimeter at station Wuhan/China.Journal of Geodynamics(3-5),451-460. |
| MLA | Sun, H. P.,et al."Earth's free core nutation determined using C032 superconducting gravimeter at station Wuhan/China".Journal of Geodynamics .3-5(2004):451-460. |
入库方式： OAI收割
来源：测量与地球物理研究所
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