| Numerical analysis of the effect of mesoscale eddies on seismic imaging | |
Ji LL(姬莉莉) ; Lin M(林缅); Lin, M (reprint author) , Chinese Acad Sci, Inst Mech, Lab Environm Mech, Beisihuan Rd 15, Beijing 100190, Peoples R China.
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| Source Publication | PURE AND APPLIED GEOPHYSICS
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| 2013-03 | |
| Volume | 170Issue:3Pages:259-270 |
| ISSN | 0033-4553 |
| Abstract | The influence of the mesoscale eddy on seismic wave propagation and seismic imaging in deep sea is investigated. Based on fundamental fluid equations, an appropriate partial differential equation is derived for the acoustic pressure field in water with eddies, including current effects. Seismic wavefields and synthetic seismograms in the center of the eddy are simulated. Numerical experiments demonstrate that velocity variations caused by the eddy can lead to traveltime perturbations. Further, in seismic images, the reflectors below the water layer are positioned incorrectly due to the perturbation of the eddy and this image perturbation depends linearly on the migration velocity of the layer below the corresponding reflector. The zero-offset seismic profiling throughout the affected area of the eddy shows that the maximum traveltime perturbation appears at the center of the eddy and the structure of horizontal reflectors below the water layer are distorted. |
| Keyword | Partial Differential Equation Synthetic Seismogram Seismic Imaging Depth Perturbation |
| Subject Area | 一般力学 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000316078700002 |
| Funding Organization | National Natural Science Foundation of China [41074097]; "973" programs [2009CB219405-1] |
| Department | LMFS海洋环境与工程(LEM) |
| Classification | 二类/Q2 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/46946 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | Lin, M (reprint author) , Chinese Acad Sci, Inst Mech, Lab Environm Mech, Beisihuan Rd 15, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Ji LL,Lin M,Lin, M . Numerical analysis of the effect of mesoscale eddies on seismic imaging[J]. PURE AND APPLIED GEOPHYSICS,2013,170(3):259-270. |
| APA | Ji LL,Lin M,&Lin, M .(2013).Numerical analysis of the effect of mesoscale eddies on seismic imaging.PURE AND APPLIED GEOPHYSICS,170(3),259-270. |
| MLA | Ji LL,et al."Numerical analysis of the effect of mesoscale eddies on seismic imaging".PURE AND APPLIED GEOPHYSICS 170.3(2013):259-270. |
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