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 Wei1,2; Hsu Hou-Tse1; Zhong Min1; Yun Mei-Juan3; Zhou Xu-Hua4 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:1页码:14-21 |
| 关键词 | GOCE time-space-wise-approach Kaula regularization Satellite gravity gradiometry Earth's gravitational field |
| 英文摘要 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | BORNE ACCELEROMETER ; RESOLUTION INDEXES ; GRACE SATELLITE ; GRAVITY MISSION ; RECOVERY ; SIMULATION ; EFFICIENT ; MODEL ; AXES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000286848200003 |
| 源URL | [http://119.78.226.72/handle/331011/28100]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, Key Lab Dynam Geodesy, Wuhan 430077, Peoples R China 2.Kyoto Univ, Disaster Prevent Res Inst, Kyoto 6110011, Japan 3.Wuhan Univ Sci & Technol, Dept Appl Phys, Wuhan 430081, Peoples R China 4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 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,2011,54(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,54(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 54.1(2011):14-21. |
入库方式： OAI收割
来源：上海天文台
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