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Zhao & Chevrot 2003

Zhao, L. and Chevrot, S. (2003). SS-wave sensitivity to upper mantle structure: Implications for the mapping of transition zone discontinuity topographies. Geophysical Research Letters 30: doi: 10.1029/2003GL017223. issn: 0094-8276.

Studies of the depths of the upper mantle discontinuities have relied on the differential travel times between the SS wave and its precursors. We examine the effect of velocity heterogeneities on these differential travel time data. Ray-theory, which is used to correct these data for the effect of velocity heterogeneities, is shown to be inaccurate if the characteristic heterogeneity length scales are similar to those seen in regional models or if the station is near the SS wave radiation nodal plane.

BACKGROUND DATA FILES

	Abstract

Keywords
Seismology, Body wave propagation, Seismology, Lithosphere and upper mantle, Tectonophysics, Tomography

Journal
Geophysical Research Letters
http://www.agu.org/journals/gl/

Publisher
American Geophysical Union
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