Discrete wavenumber solutions to numerical wave propagation in piecewise heterogeneous media - I. Theory of two-dimensional SH case
文献类型：期刊论文
| 作者 | Fu, LY; Bouchon, M |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2004-05-01 |
| 卷号 | 157期号:2页码:481-498 |
| 关键词 | discrete wavenumber representation generalized Lippmann-Schwinger integral equation piecewise heterogeneous media 2-D SH waves wave propagation |
| ISSN号 | 0956-540X |
| DOI | 10.1111/j.1365-246X.2004.02135.x |
| 文献子类 | Article |
| 英文摘要 | A semi- analytical, semi- numerical method of seismogram synthesis is presented for piecewise heterogeneous media resulting from an arbitrary source. The method incorporates the discrete wavenumber Green's function representation into the boundary- volume integral equation numerical techniques. The presentation is restricted to 2- D antiplane motion (SH waves). To model different parts of the media to a necessary accuracy, the incident, boundary- scattering and volume- scattering waves are separately formulated in the discrete wavenumber domain and handled flexibly at various accuracies using approximation methods. These waves are accurately superposed through the generalized Lippmann- Schwinger integral (GLSI) equation. The full- waveform boundary method is used for the boundary- scattering wave to accurately simulate the reflection/ transmission across strong- contrast boundaries. Meanwhile for volume heterogeneities, the following four flexible approaches have been developed in the numerical modelling scheme present here, with a great saving of computing time and memory: |
| WOS关键词 | TRANSMISSION MATRICES METHOD ; SEDIMENT-FILLED VALLEYS ; LATERALLY VARYING MEDIA ; INTEGRAL-EQUATION ; IRREGULAR INTERFACES ; SEISMOGRAM SYNTHESIS ; SEISMIC SCATTERING ; MULTILAYERED MEDIA ; MULTIPLE-SCATTERING ; VELOCITY STRUCTURE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000221422500001 |
| 出版者 | BLACKWELL PUBLISHING LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/79593]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Fu, LY |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Grenoble 1, Lab Geophys Interne & Tectonophys, F-38041 Grenoble, France |
| 推荐引用方式 GB/T 7714 | Fu, LY,Bouchon, M. Discrete wavenumber solutions to numerical wave propagation in piecewise heterogeneous media - I. Theory of two-dimensional SH case[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2004,157(2):481-498. |
| APA | Fu, LY,&Bouchon, M.(2004).Discrete wavenumber solutions to numerical wave propagation in piecewise heterogeneous media - I. Theory of two-dimensional SH case.GEOPHYSICAL JOURNAL INTERNATIONAL,157(2),481-498. |
| MLA | Fu, LY,et al."Discrete wavenumber solutions to numerical wave propagation in piecewise heterogeneous media - I. Theory of two-dimensional SH case".GEOPHYSICAL JOURNAL INTERNATIONAL 157.2(2004):481-498. |
入库方式： OAI收割
来源：地质与地球物理研究所
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