Constraints on aspherical core structure from PKiKP-PcP differential travel times

We have assembled a data set of 302 differential PKiKP‐PcP travel times that were recorded by seismic array stations of the International Monitoring System. This is an order of magnitude more data than all previous PKiKP‐PcP observations combined. The differential times were measured using a beam‐fo...

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Bibliographic Details
Published in:Journal of Geophysical Research. B. Solid Earth 2003-03, Vol.108 (B3), p.ESE12.1-n/a
Main Authors: Koper, Keith D., Pyle, Moira L., Franks, Jill M.
Format: Article
Language:English
Subjects:
Applied geophysics
beam forming
CMB topography
Earth sciences
Earth, ocean, space
Exact sciences and technology
IMS data
inner core
Internal geophysics
PKiKP
Solid-earth geophysics, tectonophysics, gravimetry
travel time residuals
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Summary:We have assembled a data set of 302 differential PKiKP‐PcP travel times that were recorded by seismic array stations of the International Monitoring System. This is an order of magnitude more data than all previous PKiKP‐PcP observations combined. The differential times were measured using a beam‐forming and cross‐correlation algorithm that has a precision of 1–2 sampling intervals (
ISSN:0148-0227
2156-2202
DOI:10.1029/2002JB001995