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Attenuation tomography of the upper inner core

Pejic, Tanja; Tkalcic, Hrvoje; Sambridge, Malcolm; Cormier, Vernon F; Benavente, Roberto

Description

The solidification of the Earth's inner core shapes its texture and rheology, affecting the attenuation and scattering of seismic body waves transmitted through it. Applying attenuation tomography in a Bayesian framework to 398 high-quality PKIKP waveforms, we invert for the apparent Qp for the uppermost 400 km below the inner core boundary at latitudes 45°S to 45°N. We use damping and smoothing for regularization of the inversion, and it seems that the smoothing regularization combined with...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
URI: http://hdl.handle.net/1885/232626
Source: Journal of Geophysical Research: Solid Earth
DOI: 10.1002/2016JB013692
Access Rights: open access

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