Wavelet filter analysis of splitting and coupling of seismic normal modes below 1.5 mhz with superconducting gravimeter records after the december 26, 2004 sumatra earthquake
文献类型：期刊论文
| 作者 | Hu Xiaogang; Liu Lintao; Sun Heping; Xu Houze; Hinderer, Jacques; Ke Xiaoping |
| 刊名 | Science in china series d-earth sciences
 |
| 出版日期 | 2006-12-01 |
| 卷号 | 49期号:12页码:1259-1269 |
| 关键词 | Superconducting gravimeter Sumatra earthquake Wavelet filter Earth free oscillations Pressure correction |
| ISSN号 | 1006-9313 |
| DOI | 10.1007/s11430-006-1259-7 |
| 通讯作者 | Hu xiaogang(hxg432@sohu.com) |
| 英文摘要 | New generation superconducting gravimeters (sgs), which have been demonstrated to be better than the best seismometers sts-1 at frequencies below 1 mhz, can be accepted as the quietest vertical seismometers for observation of long-period earth free oscillations. wavelet filtering with narrow band-pass frequency response as shown in this paper is very helpful in removing atmospheric pressure effects from on gravity records in long-period seismic mode frequency bands. the processing of high quality sg records after the great sumatra earthquake (dec. 26, 2004) with wavelet filtering leads to clear observations of all coupled toroidal modes below 1.5 mhz except these for t-0(5), t-0(7) and t-1(1); moreover t-1(2) and t-1(3) are, for the first time, unambiguously revealed in the vertical components of the free oscillations. the three well-resolved splitting singlets of overtones s-2(1) are observed from a single sg record for the first time. |
| WOS关键词 | FREE OSCILLATIONS ; INNER-CORE ; ATTENUATION ; PRESSURE |
| WOS研究方向 | Geology |
| WOS类目 | Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000242612200003 |
| 出版者 | SCIENCE CHINA PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378836 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Hu Xiaogang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan 430007, Peoples R China 2.Grad Univ, Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Strasbourg 1, CNRS, UMR 7516, Inst Phys Globe, F-67084 Strasbourg, France |
| 推荐引用方式 GB/T 7714 | Hu Xiaogang,Liu Lintao,Sun Heping,et al. Wavelet filter analysis of splitting and coupling of seismic normal modes below 1.5 mhz with superconducting gravimeter records after the december 26, 2004 sumatra earthquake[J]. Science in china series d-earth sciences,2006,49(12):1259-1269. |
| APA | Hu Xiaogang,Liu Lintao,Sun Heping,Xu Houze,Hinderer, Jacques,&Ke Xiaoping.(2006).Wavelet filter analysis of splitting and coupling of seismic normal modes below 1.5 mhz with superconducting gravimeter records after the december 26, 2004 sumatra earthquake.Science in china series d-earth sciences,49(12),1259-1269. |
| MLA | Hu Xiaogang,et al."Wavelet filter analysis of splitting and coupling of seismic normal modes below 1.5 mhz with superconducting gravimeter records after the december 26, 2004 sumatra earthquake".Science in china series d-earth sciences 49.12(2006):1259-1269. |
入库方式： iSwitch采集
来源：中国科学院大学
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。