Investigation of excitation sources of Earth's background free oscillations from acoustic resonance

在这项研究中，我们显示了明确的证据，背景爱波从10到20兆赫。在整个分析周期内，观测到的Love波动能与Rayleigh波动能一样大。我们建议，最有可能的激发源是剪切牵引作用于海底地平线由于线性地形耦合的亚重力波。

In this study we showed clear evidence of background Love waves from 10 to 20 mHz. The observed kinetic energy of Love waves is as large as that of Rayleigh waves through the whole period of analysis. We propose that the most likely excitation source is shear traction acting on a sea-bottom horizon due to linear topographic coupling of infragravity waves.