| Project/Area Number |
20740248
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | Tohoku University |
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Principal Investigator |
NAKAHARA Hisashi Tohoku University, 大学院・理学研究科, 助教 (20302078)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
|
| Budget Amount *help |
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 地震現象 / 地震波干渉法 / 相関 / 多重散乱波 / 時間変化 / エネルギー分配 / エンベロープ / アレイ / 3成分センブランス |
|---|
| Research Abstract |
Multiple scattering waves have been often considered to be "noise" in seismology, and have been filtered out in the analysis of seismograms. However, benefit of multiple scattering waves for clarifying small-scale heterogeneities in the Earth is reappraised after the recent advent of seismic interferometry. In this study, we have been able to understand seismic interferometry in deeper depth. Based on our new findings, we have developed a method for exploring shallow subsurface velocity structures, and applied the method to real data successfully. Through these studies, we have been able to improve the applicability and usefulness of seismic interferometry and multiple scattering waves.
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