| ?й???½2000??2007?????????仯?????? |
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| 引用本文： | 玄松柏,邢乐林,谈洪波,汪健,申重阳,李辉.?й????2000??2007?????????仯??????[J].大地测量与地球动力学,2012,32(3):7-16. |
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| 作者姓名： | 玄松柏 邢乐林 谈洪波 汪健 申重阳 李辉 |
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| 作者单位： | 1. 中国地震局地震研究所(地震大地测量重点实验室),武汉 430071;武汉大学测绘学院,武汉 430079
2. 中国地震局地震研究所(地震大地测量重点实验室),武汉,430071 |
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| 摘 要： | ????С???任??????2000??2007???й??????????????仯????????ò??С??????????μ??????????????仯???????????1?????С?????????????????2??????С??????????????????????????Ms8.0???????????3??????С???????????????????????????????????????????????????????????????????4??????С?????????????????????????????????????????????μ???塢??????????????????????????????
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| 关 键 词： | ???????仯 С???任 ?????? ????? ?й???? |
WAVELET MULTI-SCALE DECOMPOSITION OF GRAVITY FIELD VARIATIONS DURING 2000-2007 IN CHINA MAINLAND |
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| Xuan Songbai
,
Xing Lelin
,
Tan Hongbo
,
Wang Jian
,
Shen Chongyang
,
Li Hui.WAVELET MULTI-SCALE DECOMPOSITION OF GRAVITY FIELD VARIATIONS DURING 2000-2007 IN CHINA MAINLAND[J].Journal of Geodesy and Geodynamics,2012,32(3):7-16. |
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| Authors: | Xuan Songbai Xing Lelin Tan Hongbo Wang Jian Shen Chongyang Li Hui |
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| Institution: | 1) 1)Key Laboratory of Earthquake Geodesy,Institute of Seismology,CEA,Wuhan 4300712)School of Geodesy and Geomatics,Wuhan Universtiy,Wuhan 430079 |
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| Abstract: | Dynamic gravity field variations during the period from 2000 to 2007 in China mainland are decomposed after the method of multi-scale decomposition of wavelet transform.The dynamic gravity field variations of the different-scale wavelet and the following results are drawn: 1) The first-order wavelet details are independent of tectonic activities basically.2)The second-order wavelet details well reflect the uplift of Tibetan Plateau and the preparation of Wenchuan Ms8.0 earthquake.3)The third-order wavelet details well give information about larger scale tectonic activities,such as uplift and eastward mass flow of Tibetan Plateau,Kunlun earthquake and Wenchuan earthquake.4)The third-order wavelet approximations well give information about large-scale tectonic activities,such as the collision of India plate with Tibetan Plateau,the subduction of Pacific plate to Eurasian plate and the movement tendency of north China block. |
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| Keywords: | gravity field variations wavelet transform multi-scale decomposition tectonic activities China mainland |
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