| 講演要旨(和文) | | 岩手大学工学部グラウンドで観測された3成分微動アレー記録の水平動成分にFK法（斎藤2007）を適用した．FK法で求められたTransverse成分の位相速度分散曲線が，理論的に計算されたLove波とよく一致した．同様にしてRadial成分の位相速度分散曲線も理論的に計算されたRayleigh波とよく一致した．長時間の実記録において安定的にLove波を検出できたことから，拡張されたLK法はLove波位相速度推定に有効であることが示された． |
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| | 講演要旨(英文) | | In order to detect not only Rayleigh wave but also Love wave from horizontal microtremors, we applied the frquency-wavenumber spectral method by Saito(2007) to horizontal microtremor array records observed at the ground of Iwate University. As a result, phase velocities of Love wave were obtained from the transverse f-k analysis, and those of Rayleigh wave were obtained from radial f-k analysis. Observed phase velocities were in good agreement with theoretical ones calculated from bore-hole data. This result shows that the horizontal frequency-wavenumber spectral method by Saito(2007) is effective for detcting Love and Rayleigh waves from real observed horizontal records. |
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