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Mapping crustal S-wave velocity structure with SV-component receiver function method

机译:SV分量接收机函数法绘制地壳S波速度结构

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In this article, we analyze the characters of SV-component receiver function of teleseismic body waves and its advantages in mapping the S-wave velocity structure of crust in detail. Similar to radial receiver function, SV-component receiver function can be obtained by directly deconvolving the P-component from the SV-component of teleseismic recordings. Our analyses indicate that the change of amplitude of SV-component receiver function against the change of epicentral distance is less than that of radial receiver function. Moreover, the waveform of SV-component receiver function is simpler than the radial receiver function and gives prominence to the PS converted phases that are the most sensitive to the shear wave velocity structure in the inversion. The synthetic tests show that the convergence of SV-component receiver function inversion is faster than that of the radial receiver function inversion. As an example, we investigate the S-wave velocity structure beneath HIA station by using the SV-component receiver function inversion method.
机译:在本文中,我们详细分析了远震体波的SV分量接收器功能的特点及其在映射地壳的S波速度结构方面的优势。类似于径向接收器功能,可以通过将P分量与远震记录的SV分量直接解卷积来获得SV分量的接收器功能。我们的分析表明,SV分量接收器功能相对于震中距离变化的幅度变化小于径向接收器功能的变化。此外,SV分量接收器函数的波形比径向接收器函数更简单,并且突出了对反演中的剪切波速度结构最敏感的PS转换相位。综合测试表明,SV分量接收机函数反演的收敛速度快于径向接收机函数反演的收敛速度。例如,我们使用SV分量接收函数反演方法研究了HIA站下方的S波速度结构。

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