Application of Microseismic Data to Constraining Inversion for Velocity Structure Beneath Stations in Sedimentary Area
详细信息
- 责任者：Wang Weilai (Institute of Geophysics ; China Earthquake Administration ; Beijing 100081 ; China) ; Wu Jianping
- 刊名：Acta Seismologica Sinica
- 出版年：2011
- 卷期：33(1)
- 关键词：脉动说 ; pulsation hypothesis ; 速度结构 ; velocity structure
- 页码：p.28-38
- 图表：7 illus., 33 refs.
- 分类号：0400
- issnNo：ISSN0253-3782
- isbnNo：CN11-2021/P
摘要
The joint inversion of receiver functions and seismic surface wave dispersion has become a common technique to study the velocity structure beneath stations. The results can simultaneously match the two data sets of different resolution so that the non-uniqueness of solution has been effectively suppressed in a certain extent. The horizontal resolutions of seismic tomography are low, so it is difficult to reflect the real dispersion characteristics of the local media near stations. The spatial extents reflected by these surface wave dispersions and receiver functions at different depths are also different, especially in the sedimentary region with complex lateral variations, where receiver functions and surface wave dispersion can not simultaneously achieve a good fitting result. So the constraint data, which can reflect information of media in the same spatial extent, should be used as far as possible for joint inversion.
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