Numerical simulation of the six-component elastic-wave field
文献类型：期刊论文
| 作者 | Zhang Zhi3,4; Sun LiXia3; Tang GuoBin3,4; Xu Tao1; Wang Yun2; Wang MinLing3,4; Guo Xi3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 63期号:6页码:2375-2385 |
| 关键词 | Translational component Rotational component Staggered grid finite difference scheme Simulation |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2020N0392 |
| 英文摘要 | In the seismic wave propagation, the particle motion includes not only three independent translations, but also three independent rotations. In this paper, we simulate seismic wave propagation in the elastic medium, including body and surface waves, and analyze the wave characteristics of all the six components. Based on the theory of first-order velocity-stress elastic wave equation, we use the absorbing boundary condition of the Splitting Complete Matching Layer (SPML) in the simulation. The calculation formulas of the velocity and stress in the staggered grid finite difference scheme are derived to simulate the six-component wave field in the isotropic medium. And then the three-component dispersive-energy spectra in a two-dimensional isotropic two-layer model are obtained by a high-resolution linear Radon transform. The simulation results show that the energy of rotational components is much weaker than that of translational components. In the translational components, surface waves have stronger energy and lower frequency, while the P-wave energy is stronger and the S-wave energy is weaker. On the contrary, in the rotational components, the P-wave energy is weaker and the S-wave energy is stronger. The dispersion energy spectra of rotational components contain more information on fundamental and higher modes, namely rotational components carry more underground information. |
| WOS关键词 | PROPAGATION ; DYNAMICS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000537729300021 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96656]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Sun LiXia |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 3.Guilin Univ Technol, Coll Earth Sci, Guilin 541004, Peoples R China 4.Guangxi Key Lab Hidden Metall Ore Deposits Explor, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang Zhi,Sun LiXia,Tang GuoBin,et al. Numerical simulation of the six-component elastic-wave field[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2020,63(6):2375-2385. |
| APA | Zhang Zhi.,Sun LiXia.,Tang GuoBin.,Xu Tao.,Wang Yun.,...&Guo Xi.(2020).Numerical simulation of the six-component elastic-wave field.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,63(6),2375-2385. |
| MLA | Zhang Zhi,et al."Numerical simulation of the six-component elastic-wave field".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 63.6(2020):2375-2385. |
入库方式： OAI收割
来源：地质与地球物理研究所
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