2016 Fiscal Year Final Research Report
Development of a full-waveform inversion method utilizing a mesh-free finite-difference method
| Project/Area Number |
15K18301
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Earth system and resources engineering
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | 全波形逆解析 / メッシュフリー差分法 |
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| Outline of Final Research Achievements |
In this study, we developed a full-waveform inversion using a mesh-free finite-difference method for accurate and efficient calculation. In the mesh-free finite-difference method, it is easy to simulate full-wavefield in an effective manner with adaptive mesh refinement which corresponds to an inverted velocity structure.
We investigated the effectiveness of the proposed method using numerical experiments. By comparing with the conventional finite-difference method, it is indicated that we can invert high accuracy velocity structures with considerable reduction of computational costs.
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| Free Research Field |
応用地球物理学
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