Effects due to the anisotropic stretching of the surface-fitting grid on the traveltime computation for irregular surface by the coordinate transforming method
文献类型：期刊论文
| 作者 | Lan Hai-Qiang1,2; Zhang Zhi3; Xu Tao1; Bai Zhi-Ming1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2012-10-01 |
| 卷号 | 55期号:10页码:3355-3369 |
| 关键词 | Eikonal equation Travel time Topography Surface-fitting grid Anisotropy |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/j.issn.0001-5733.2012.10.018 |
| 文献子类 | Article |
| 英文摘要 | The classical eikonal equation is commonly used in Cartesian coordinate system for problems that involve static correction, prestack migration, earthquake location and seismic tomography, but is less effective for calculating travel times in an earth model that has an irregular surface. We have presented a topography-dependent eikonal equation in a curvilinear coordinate system that makes use of the surface-fitting grid and map a rectangular grid onto a curved grid. Then, we utilized the efficient Lax-Friedrichs sweeping scheme to approximate the viscosity solutions of the eikonal equation in the curvilinear coordinate system. In this paper, we investigate the impacts due to the anisotropic stretching of the surface-fitting grid on the traveltime computation by using the topography-dependent eikonal equation, which has a significant meaning in the direction of our method in geophysical application. |
| WOS关键词 | HAMILTON-JACOBI EQUATIONS ; FAST MARCHING METHOD ; FINITE-DIFFERENCE CALCULATION ; WAVE-FIELD SIMULATION ; FAST SWEEPING METHODS ; COMPLEX LAYERED MEDIA ; EIKONAL EQUATION ; SOUTHEASTERN CHINA ; VELOCITY STRUCTURE ; ADVANCING FRONTS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000310817000018 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84594]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Lan Hai-Qiang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China 3.Guilin Univ Technol, Key Lab Geol Engn, Ctr Guangxi Prov, Coll Earth Sci, Guilin 541004, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lan Hai-Qiang,Zhang Zhi,Xu Tao,et al. Effects due to the anisotropic stretching of the surface-fitting grid on the traveltime computation for irregular surface by the coordinate transforming method[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(10):3355-3369. |
| APA | Lan Hai-Qiang,Zhang Zhi,Xu Tao,&Bai Zhi-Ming.(2012).Effects due to the anisotropic stretching of the surface-fitting grid on the traveltime computation for irregular surface by the coordinate transforming method.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(10),3355-3369. |
| MLA | Lan Hai-Qiang,et al."Effects due to the anisotropic stretching of the surface-fitting grid on the traveltime computation for irregular surface by the coordinate transforming method".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.10(2012):3355-3369. |
入库方式： OAI收割
来源：地质与地球物理研究所
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