| 研究課題/領域番号 |
22K20392
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| 研究機関 | 国立研究開発法人海洋研究開発機構 |
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研究代表者 |
Qin Yanfang 国立研究開発法人海洋研究開発機構, 海域地震火山部門(地震発生帯研究センター), 研究員 (20962343)
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| 研究期間 (年度) |
2022-08-31 – 2025-03-31
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| キーワード | seismic inversion / full waveform tomography |
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| 研究実績の概要 |
Since last year, the time-domain FWI program has been running successfully. Following a visit to collaborators in Grenoble Alpes University , I conducted continuous testing of various parameters and employed different strategies. These included, but were not limited to, evaluating uncertainties in observed data (relying on signal-to-noise ratio), refining starting velocity models, and analyzing source signatures.
Diverse outcomes were obtained from different inputs and inversion parameters. To identify the optimal approach, I meticulously compared and analyzed the various results, correlating them with seismic reflection data for comprehensive analysis.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
Despite encountering numerous challenges during the data inversion process using advanced FWI, I successfully overcame these obstacles through extensive testing and international communication. I have now obtained a preferred result, and the remaining tasks will primarily involve interpretation and paper writing.
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| 今後の研究の推進方策 |
For the interpretation of my results, I plan to engage in discussions with various geologists, geophysicists, and other interdisciplinary experts. This collaborative effort may necessitate additional tests on the results and allocate computational resources for further analysis. Additionally, I understand the importance of thoroughly reviewing and comprehending recent references pertinent to my research. With these steps in place, I anticipate a smooth progression in my work.
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| 次年度使用額が生じた理由 |
Because during year 2023, more advanced results were achieved after international communications. So I plan to present the results in some coming international conferences, such as participation of JPGU2024; participation of SEISMIX2024. I will also write papers to publish the results, so need money for English editing and publication fee, etc.
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