GRACE时变重力数据的后处理方法研究进展

许才军; 龚正

doi:10.13203/j.whugis20140639

GRACE时变重力数据的后处理方法研究进展

doi: 10.13203/j.whugis20140639

许才军^1,2,
龚正¹

1.
武汉大学测绘学院, 湖北武汉, 430079;
2.
地球空间环境与大地测量教育部重点实验室, 湖北武汉, 430079

基金项目: 国家自然科学基金(41431069);国家973计划(2013CB733303,2013CB73304);高等学校博士学科点专项科研基金(20110141130010)。

详细信息

作者简介:
许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

中图分类号: P223

Review of the Post-processing Methods on GRACE Time Varied Gravity Data

XU Caijun^1,2,
GONG Zheng¹

1.
School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
2.
Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, China

Funds: The National Natural Science Foundation, No.41431069; the National Key Basic Research Program(973 Program), Nos.2013CB733303, 2013CB73304; the Research Fund for the Doctoral Program of Higher Education, No.20110141130010.

摘要: 重力场是反映地球介质密度变化和在各种环境(固体地球潮汐、内部热流、固体和液体之间质量的交换、表面负荷和地震构造运动等)下动力学特征的最基本和最直接的物理量。GRACE(Gravity Recovery and Climate Experiment)卫星作为探测全球重力场的工具已经为科研工作者提供了超过10 a的全球时变重力场数据。由于GRACE数据存在固有误差,GRACE数据产品需要进行后处理对局部重力场进行研究。回顾整理了GRACE数据后处理中的处理方法,包括高斯滤波法及非各向同性滤波法,位系数去相关法,主成分分析法,小波分解法,Slepian方法,以及顾及先验信息的改进算法等,并对GRACE后处理算法的后续改进和发展进行了展望。
- GRACE /
- 后处理 /
- 算法 /
- 局部重力场 /
- 时变重力数据
Abstract: The gravity field is a physical parameter reflecting the density change and dynamic characteristics of the earth under different circumstances including the solid earth tide, internal heat flow, mass exchange of solids and liquids, surface loads, and seismic tectonic movements. The time varied global gravity model has been provided by GRACE since 2002, but with the existing system error in GRACE and the need for focusing on local areas, post-processing is required when using GRACE products. In last decade, many algorithms have been shown to be effective. The ideas for these algorithms are reviewed in this article; a Gaussian filter with isotropic and non-isotropic types, the destriping filter, the empirical orthogonal functions method, wavelet analysis, and the Slepian function method. The future directions in post-processing algorithms are also discussed.
- GRACE /
- post-processing /
- algorithm /
- local gravity field /

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[16]	徐新禹, 李建成, 王正涛, 邹贤才. 利用参考重力场模型基于能量法确定GRACE加速度计校准参数 . 武汉大学学报 ● 信息科学版, 2008, 33(1): 72-75.
[17]	罗佳, 姜卫平, 汪海洪, 邹贤才. 中国区域SST卫星重力场模型精度分析 . 武汉大学学报 ● 信息科学版, 2006, 31(3): 199-202.
[18]	罗佳, 施闯, 邹贤才, 汪海洪. 现有SST重力场模型的比较研究 . 武汉大学学报 ● 信息科学版, 2006, 31(7): 594-598.
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[20]	文和. 综合导航定位数据后处理研究 . 武汉大学学报 ● 信息科学版, 1989, 14(1): 10-19.

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GRACE时变重力数据的后处理方法研究进展

doi: 10.13203/j.whugis20140639

作者简介:
许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

Review of the Post-processing Methods on GRACE Time Varied Gravity Data

计量

GRACE时变重力数据的后处理方法研究进展

doi: 10.13203/j.whugis20140639

1. 武汉大学测绘学院, 湖北武汉, 430079;

2. 地球空间环境与大地测量教育部重点实验室, 湖北武汉, 430079

作者简介:
许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

English Abstract

Review of the Post-processing Methods on GRACE Time Varied Gravity Data

1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;

2. Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, China

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目录

留言板

GRACE时变重力数据的后处理方法研究进展

doi: 10.13203/j.whugis20140639

作者简介: 许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

Review of the Post-processing Methods on GRACE Time Varied Gravity Data

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出版历程

GRACE时变重力数据的后处理方法研究进展

doi: 10.13203/j.whugis20140639

1. 武汉大学测绘学院, 湖北 武汉, 430079; 2. 地球空间环境与大地测量教育部重点实验室, 湖北 武汉, 430079

作者简介: 许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

English Abstract

Review of the Post-processing Methods on GRACE Time Varied Gravity Data

1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China; 2. Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, China

全文HTML

目录

作者简介:
许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

1. 武汉大学测绘学院, 湖北武汉, 430079;

2. 地球空间环境与大地测量教育部重点实验室, 湖北武汉, 430079

作者简介:
许才军,博士,教授,长江学者,主要研究方向为大地测量学与地球动力学。cjxu@sgg.whu.edu.cn

1. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;

2. Key Laboratory of Geospace Environment and Geodesy, Ministry of Education, Wuhan 430079, China