Source Effects on Surface Wavefields
نویسنده
چکیده
We derive displacement equations for Rayleigh and Love waves in simple structural models for point sources in order to better understand source effects on their wavefields and radiation patterns. In doing so, we analytically demonstrate the existence of surface waves in these Earth models. Rayleigh and Love wave radiation patterns are found to mimic the P and SH radiation patterns, respectively. However, they differ markedly from their body wave counterparts in their amplitudes’ dependence on source depth and in their spreading geometry.
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