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| ����GRACEʱ���������������ճ��仯 | |
| 引用本文： | 陈巍,申文斌,李进,韩建成. ����GRACEʱ���������������ճ��仯[J]. 大地测量与地球动力学, 2009, 29(3): 119-124 |
| 作者姓名： | 陈巍 申文斌 李进 韩建成 |
| 作者单位： | 1. 武汉大学测绘学院地球物理系,武汉,430079;测绘遥感信息工程国家重点实验室,武汉,430079 2. 武汉大学测绘学院地球物理系,武汉,430079;测绘遥感信息工程国家重点实验室,武汉,430079;地球空间环境与大地测量教育部重点实验室,武汉,430079 3. 武汉大学测绘学院地球物理系,武汉,430079 |
| 基金项目： | 地球空间环境与大地测量教育部重点实验室开放基金，测绘遥感信息工程国家重点实验室专项科研经费，武汉大学优秀博士学位论文培育基金，国家863项目 |
| 摘 要： | ??????????????λ???????????????????????????????仯?????????С????????????????GRACE????????????????λ????????????????е??????????????????????????????????????????????????????????????????????????????????????仯???????????????????????????????????????????????????????????????????6????????????? |
| 关 键 词： | GRACE?????? ????λ??? С?????? ??????????? ????仯 |
VARIATIONS OF LOD INFERRED FROM TEMPORAL GRACE GRAVITY DATA |
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| Chen Wei,Shen Wenbin,Li Jin,Han Jiancheng. VARIATIONS OF LOD INFERRED FROM TEMPORAL GRACE GRAVITY DATA[J]. Journal of Geodesy and Geodynamics, 2009, 29(3): 119-124 | |
| Authors: | Chen Wei Shen Wenbin Li Jin Han Jiancheng |
| Affiliation: | 1)Department of Geophysics, School of Geodesy and Geomatics, Wuhan University, Wuhan 430079 2)State Key Laboratory of Information Engineering in Surveying，Mapping and Remote Sensing, Wuhan 4300793)Key Laboratory of Geospace Environment and Geodesy,Ministry of Education,Wuhan 430079 |
| Abstract: | The impacts of the temporal second-order potential coefficients on the Earth's principal axes and moments of inertia as well as variations of length of day(LOD) are studied.By using the wavelet analysis and adoption the monthly-averaged GRACE gravity model,the second-order potential coefficients were processed and the jumps and noises presented in these data were removed.After comparing the Earth's principal axes and moments of inertia obtained from the processed with those from the non-processed coefficien... |
| Keywords: | GRACE satellite system second order potential coefficients wavelet analysis Earth’s principal axes variations of LOD(lengh of day) |
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