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Full waveform tomography for radially anisotropic structure: New insights into present and past states of the Australasian upper mantle

Fichtner, Andreas; Kennett, Brian; Igel, Heiner; Bunge, Hans-Peter

Description

We combine spectral-element simulations and adjoint techniques in a non-linear full seismic waveform tomography for the radially anisotropic structure of the Australasian upper mantle. Our method allows us to explain 30 s waveforms in detail, and it yields tomographic images with locally 2{ring operator} lateral resolution. In the course of 19 conjugate-gradient iterations the total number of exploitable waveforms increased from 2200 to nearly 3000. The final model, AMSAN.19, thus explains data...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
URI: http://hdl.handle.net/1885/32758
Source: Earth and Planetary Science Letters
DOI: 10.1016/j.epsl.2009.12.003

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