| GOCE卫星重力计划及其应用 |
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| 引用本文： | 李克行,彭冬菊,黄珹,冯初刚.GOCE卫星重力计划及其应用[J].天文学进展,2005,23(1):29-39. |
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| 作者姓名： | 李克行 彭冬菊 黄珹 冯初刚 |
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| 作者单位： | 1. 中国科学院,上海天文台,上海,200030;中国科学院,研究生院,北京,100039
2. 中国科学院,上海天文台,上海,200030 |
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| 摘 要： | 基于CHAMP和GRACE卫星，GOCE(Gravity Field and Stead—state Ocean Circulation Explore)是欧空局(ESA)的一颗重力场和静态洋流探测卫星。利用它可得到空间分辨率为200—80km的全球重力场模型和1cm精度的大地水准面．简要介绍了目前重力卫星的发展现状与其局限性，详细叙述了GOCE卫星的组成、科学目标、测量原理、在地球物理等学科中的重要应用，并提出GOCE等重力卫星资料在我国的应用设想。
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| 关 键 词： | 天体力学 重力梯度 综述 GOCE 重力场 卫星 跟踪 |
| 文章编号： | 1000-8349(2005)01-0029-11 |
GOCE Program and its Applications |
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| LI Ke-hang,PENG Dong-ju,HUANG Cheng,FENG Chu-gang.GOCE Program and its Applications[J].Progress In Astronomy,2005,23(1):29-39. |
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| Authors: | LI Ke-hang PENG Dong-ju HUANG Cheng FENG Chu-gang |
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| Abstract: | Current knowledge of the earth's gravity field, as derived from CHAMP and Grace's data, is incomplete, and the determined geoid can not reach the precision required by geophysics and the subjects related to Earth Science. GOCE (Gravity Field and Stead-state Ocean Circulation Explore), which will be launched by ESA in 2006, is the Earth Explorer Gravity Field and Steady-State Ocean Circulation Core Mission satellite based on CHAMP and GRACE. It can determine the geoid with an accuracy of 1 cm and spatial resolution (half wavelength) at length scales between 200-80 km. This paper briefly introduces the current gravity satellites' developing status and their limitations. The GOCE satellite's instruments, its scientific objectives and surveying principle, the important applications in geophysics field, etc., are discussed in detail in this paper. Finally, the applications of the data sources which are generated by GOCE and other gravity satellites are conceived in our country. |
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| Keywords: | celestial mechanics gravity gradiometry review GOCE gravity field satellite tracking |
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