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| 引用本文： | 周新,邢乐林,邹正波,李辉.GRACEʱ���������ĸ�˹ƽ���о�[J].大地测量与地球动力学,2008,28(3):41-45. |
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| 作者姓名： | 周新 邢乐林 邹正波 李辉 |
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| 作者单位： | 1. 中国地震局地震研究所,武汉,4300711;地壳运动与地球观测实验室,武汉,430071
2. 中国地震局地震研究所,武汉,4300711;地壳运动与地球观测实验室,武汉,430071;武汉大学测绘学院,武汉,430079 |
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| 摘 要： | ??????????????????????GRACE??????????????????????2006??1????2?μ??????????仯???о?????????????????????????????????????????????Σ?????????γ??????????????????????????????????????????????????????????????????????????????????????
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| 关 键 词： | GRACE????????? ?????? ???????? ??? ??????? |
| 文章编号： | 1671-5942(2008)03-0041-05 |
| 修稿时间： | 2008年1月22日 |
STUDY ON GAUSSIAN SMOOTHING OF GRACE TEMPORAL GRAVITY VARIATION |
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| Zhou Xin,Xing Lelin,Zou Zhengbo,Li Hui.STUDY ON GAUSSIAN SMOOTHING OF GRACE TEMPORAL GRAVITY VARIATION[J].Journal of Geodesy and Geodynamics,2008,28(3):41-45. |
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| Authors: | Zhou Xin Xing Lelin Zou Zhengbo Li Hui |
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| Institution: | 1)Institue of Seismology，CEA，Wuhan 4300712)Crustal Movement Laboratory，Wuhan 4300713)School of Geodesy and Geomatics of Wuhan University, Wuhan 430079 |
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| Abstract: | Two methods isotropic Gaussian filter and non-isotropic Gaussian filter of GRACE temporal gravity variation smoothing,and their properties are studied.With these methods,the global geoid change between January and February 2006 was computed.The results show that non-isotropic Gaussian filter's spectrum depends not only on degree but also on order;the non-isotropic smoother yields enhanced GRACE signals with significantly higher spatial resolution in latitude and the same resolution in longitude without reducing the accuracy as compared to isotropic Gaussian filter. |
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| Keywords: | GRACE temporal gravity Gaussian smoothing non-isotropic spectrum geoid |
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