Accuracy of the staggered-grid finite-difference method of the acoustic wave equation for marine seismic reflection modeling
文献类型：CNKI期刊论文
| 作者 | Qian J(钱进); Wu SG(吴时国); Cui RF(崔若飞) |
| 发表日期 | 2013-01-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | marine seismic reflection modeling stability condition dispersion relation staggered grid finite-difference |
| 英文摘要 | Seismic wave modeling is a cornerstone of geophysical data acquisition, processing, and interpretation, for which finite-difference methods are often applied. In this paper, we extend the velocity- pressure formulation of the acoustic wave equation to marine seismic modeling using the staggered-grid finite-difference method. The scheme is developed using a fourth-order spatial and a second-order temporal operator. Then, we define a stability coefficient (SC) and calculate its maximum value under the stability condition. Based on the dispersion relationship, we conduct a detailed dispersion analysis for submarine sediments in terms of the phase and group velocity over a range of angles, stability coefficients, and orders. We also compare the numerical solution with the exact solution for a P-wave line source in a homogeneous submarine model. Additionally, the numerical results determined by a Marmousi2 model with a rugged seafloor indicate that this method is sufficient for modeling complex submarine structures. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the National Natural Science Foundation of China(Nos. 41206043, 40930845) ; the Open Foundation of Key Laboratory of Marine Geology and Environment of Chinese Academy of Sciences(No. MGE2011KG07) ; the Knowledge Innovation Program of Chinese Academy of Sciences (No. KZCX2-YW-229) ; the National Basic Research Program of China (973 Program) (No. 2009CB219505) |
| 卷 | v.31期:01页:171-179 |
| 语种 | 英文; |
| 分类号 | P714 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/191023]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.KeyLaboratoryofMarineGeologyandEnvironment,InstituteofOceanology,ChineseAcademyofSciences 2.SchoolofResourceandGeoscience,ChinaUniversityofMiningandTechnology |
| 推荐引用方式 GB/T 7714 | Qian J,Wu SG,Cui RF. Accuracy of the staggered-grid finite-difference method of the acoustic wave equation for marine seismic reflection modeling. 2013. |
入库方式： OAI收割
来源：海洋研究所
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