Improving the accuracy of GRACE Earth's gravitational field using the combination of different inclinations
文献类型：期刊论文
| 作者 | Zheng, Wei ; Shao, Chenggang ; Luo, Jun ; Xu, Houze |
| 刊名 | Progress in Natural Science
 |
| 出版日期 | 2008 |
| 期号 | 5页码:555-561 |
| 中文摘要 | In this paper, the GRACE Earth's gravitational field complete up to degree and order 120 is recovered based on the combination of different inclinations using the energy conservation principle. The results show that because different inclinations of satellite are sensitive to the geopotential coefficients with different degrees l and orders m, the design of GRACE exploiting 89 degrees inclination can effectively improve the accuracy of geopotential zonal harmonic coefficients. However, it is less sensitive to the geopotential tesseral harmonic coefficients. Accordingly, the second group of GRACE exploiting lower inclination is required to determine high-accurately the geopotential tesseral harmonic coefficients and cover the shortage of the single group of GRACE exploiting 89 degrees inclination. Two groups of GRACE individually exploiting 89 degrees + (82 degrees - 84 degrees) inclinations are the optimal combination of the Earth's gravitational field recovery complete up to degree and order 120. In the degree 120, the joint accuracy of cumulative geoid height based on two groups of GRACE individually exploiting 89 degrees and 83 degrees inclinations is averagely two times higher than the accuracy of a group of GRACE exploiting 89 degrees inclination. (c) 2007 National Natural Science Foundation of China and Chinese Academy of Sciences. Published by Elsevier Limited and Science in China Press. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-11 |
| 源URL | [http://ir.whigg.ac.cn/handle/342008/3586]  |
| 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,Shao, Chenggang,Luo, Jun,et al. Improving the accuracy of GRACE Earth's gravitational field using the combination of different inclinations[J]. Progress in Natural Science,2008(5):555-561. |
| APA | Zheng, Wei,Shao, Chenggang,Luo, Jun,&Xu, Houze.(2008).Improving the accuracy of GRACE Earth's gravitational field using the combination of different inclinations.Progress in Natural Science(5),555-561. |
| MLA | Zheng, Wei,et al."Improving the accuracy of GRACE Earth's gravitational field using the combination of different inclinations".Progress in Natural Science .5(2008):555-561. |
入库方式： OAI收割
来源：测量与地球物理研究所
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