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Toward seeing the Earth's interior through unbiased tomographic lenses

Abstract:

Geophysical tomographic studies traditionally exploit linear, damped least-squares inversion methods. We demonstrate that the resulting models can be locally biased toward lower or higher amplitudes in regions of poor data illumination, potentially causing physical misinterpretations. For example, we show that global model S40RTS is locally biased toward higher amplitudes below isolated receivers where ray paths are quasi vertical, such as on Hawaii. This leads to questions on the apparent lo...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1002/2017GL074996

Authors


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Institution:
University of Oxford
Division:
MPLS Division
Department:
Earth Sciences
Oxford college:
University College
Lambotte, S More by this author
Publisher:
American Geophysical Union Publisher's website
Journal:
Geophysical Research Letters Journal website
Volume:
44
Issue:
22
Pages:
11,399–11,408
Publication date:
2017-11-29
Acceptance date:
2017-10-27
DOI:
ISSN:
1944-8007
Pubs id:
pubs:743545
URN:
uri:4241823a-c451-47d5-9afb-fe140b824826
UUID:
uuid:4241823a-c451-47d5-9afb-fe140b824826
Local pid:
pubs:743545

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