An adaptive free-surface expression for three-dimensional finite-difference frequency-domain modelling of elastic wave
文献类型：期刊论文
| 作者 | Cao, Jian1; Chen, Jing-Bo; Dai, Meng-Xue |
| 刊名 | GEOPHYSICAL PROSPECTING
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 66期号:4页码:707-725 |
| 关键词 | Seismic Wave Modelling Free Surface Frequency Domain Finite Difference |
| ISSN号 | 0016-8025 |
| DOI | 10.1111/1365-2478.12618 |
| 文献子类 | Article |
| 英文摘要 | Finite-difference frequency-domain modelling of seismic wave propagation is attractive for its efficient solution of multisource problems, and this is crucial for full-waveform inversion and seismic imaging, especially in the three-dimensional seismic problem. However, implementing the free surface in the finite-difference method is nontrivial. Based on an average medium method and the limit theorem, we present an adaptive free-surface expression to describe the behaviour of wavefields at the free surface, and no extra work for the free-surface boundary condition is needed. Essentially, the proposed free-surface expression is a modification of density and constitutive relation at the free surface. In comparison with a direct difference approximate method of the free-surface boundary condition, this adaptive free-surface expression can produce more accurate and stable results for a broad range of Poisson's ratio. In addition, this expression has a good performance in handling the lateral variation of Poisson's ratio adaptively and without instability. |
| WOS关键词 | HETEROGENEOUS MEDIA ; BOUNDARY-CONDITIONS ; DIRECT SOLVER ; TTI MEDIA ; PROPAGATION ; SCHEMES ; SEISMOGRAMS ; OPERATORS ; 2D |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000430289500005 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; 41674132) ; 41674132) ; 41674132) ; 41674132) ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; 41674132) ; 41674132) ; 41674132) ; 41674132) ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; 41674132) ; 41674132) ; 41674132) ; 41674132) ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; National Natural Science Foundation of China(41474104 ; 41674132) ; 41674132) ; 41674132) ; 41674132) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/88350]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Cao, Jian |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jian,Chen, Jing-Bo,Dai, Meng-Xue. An adaptive free-surface expression for three-dimensional finite-difference frequency-domain modelling of elastic wave[J]. GEOPHYSICAL PROSPECTING,2018,66(4):707-725. |
| APA | Cao, Jian,Chen, Jing-Bo,&Dai, Meng-Xue.(2018).An adaptive free-surface expression for three-dimensional finite-difference frequency-domain modelling of elastic wave.GEOPHYSICAL PROSPECTING,66(4),707-725. |
| MLA | Cao, Jian,et al."An adaptive free-surface expression for three-dimensional finite-difference frequency-domain modelling of elastic wave".GEOPHYSICAL PROSPECTING 66.4(2018):707-725. |
入库方式： OAI收割
来源：地质与地球物理研究所
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