Accurate and rapid determination of GOCE Earth's gravitational field using time-space-wise-approach associated with Kaula regularization
文献类型：期刊论文
| 作者 | Zheng, Wei ; Hsu, Hou-Tse ; Zhong, Min ; Yun, Mei-Juan ; Zhou, Xu-Hua |
| 刊名 | Chinese Journal of Geophysics-Chinese Edition
 |
| 出版日期 | 2011 |
| 期号 | 1页码:14-21 |
| 中文摘要 | The GOCE Earth's gravitational field complete up to degree and order 250 is recovered based on the time-space-wise-approach associated with Kaula regularization in order to study the influences of satellite gravity gradiometry on the accuracy of medium-high frequency Earth's gravitational field recovery. The simulated results show: Firstly, the time-space-wise-approach is an effective way to accurately and rapidly determine the high-degree Earth's gravitational field; Secondly, the Kaula regularization is one of the key processes to reduce ill condition of normal matrix; Thirdly, the large-scale linear system of equations is solved quickly using the improved pre-conditioned conjugate-gradient iterative approach, and the computing speed can be improved at least 1000 times as compared to the direct least-squares approach; Fourthly, at the degree 250, cumulative geoid height and gravity anomaly errors are 9. 295 cm and 0. 204 mGal with orbital error 1 cm and gravity gradient error 3 X 10(-12)/s(2), respectively. Finally, the complementarity of high-accuracy and high-resolution Earth's gravitational field recovery between international GRACE and GOCE missions is demonstrated. |
| 原文出处 | |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.whigg.ac.cn//handle/342008/3580]  |
| 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 | Zheng, Wei,Hsu, Hou-Tse,Zhong, Min,et al. Accurate and rapid determination of GOCE Earth's gravitational field using time-space-wise-approach associated with Kaula regularization[J]. Chinese Journal of Geophysics-Chinese Edition,2011(1):14-21. |
| APA | Zheng, Wei,Hsu, Hou-Tse,Zhong, Min,Yun, Mei-Juan,&Zhou, Xu-Hua.(2011).Accurate and rapid determination of GOCE Earth's gravitational field using time-space-wise-approach associated with Kaula regularization.Chinese Journal of Geophysics-Chinese Edition(1),14-21. |
| MLA | Zheng, Wei,et al."Accurate and rapid determination of GOCE Earth's gravitational field using time-space-wise-approach associated with Kaula regularization".Chinese Journal of Geophysics-Chinese Edition .1(2011):14-21. |
入库方式： OAI收割
来源：测量与地球物理研究所
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