Pitfalls in constraining attenuation from ambient seismic noise
نویسندگان
چکیده
We numerically investigate the ability of ambient noise surface wave interferometry to invert for anelastic attenuation. Shorter correlation time windows leads to higher signal-to-noise ratio of empirical Green’s functions (EGF’s). We show, however, that it is necessary to correct for the window length and that this is especially important if short time windows are employed. Furthermore, we show how source distribution varying with azimuth can severely affect the estimation of attenuation from ambient-noise surface waves.
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