Constraining outermost core velocity with SmKS waves

Edward Garnero, D. V. Helmberger, S. P. Grand

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

SmKS waves (m=2,3,4,), seismic waves that travel as S-waves in the mantle, P-waves in the core, and reflect (m-1) times on the underside of the core-mantle boundary, are well-suited for constraining outermost core Vp structure. This is due to closeness of the mantle paths and also the shallow depth range these waves travel in the outermost core. High quality digitized WWSSN and Canadian network recordings from a deep focus Java Sea event which sample the outer core beneath the northern Pacific, the Arctic, and northwestern North America (roughly 1/8 of the globe), are utilized as an example to show the strength of the SmKS waves to resolve outermost core structure. -from Authors

Original languageEnglish (US)
Pages (from-to)2463-2466
Number of pages4
JournalGeophysical Research Letters
Volume20
Issue number22
StatePublished - 1993
Externally publishedYes

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mantle
outer core
core-mantle boundary
travel
Earth mantle
seismic wave
P-wave
S-wave
globes
seismic waves
P waves
S waves
recording
North America
sea

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Garnero, E., Helmberger, D. V., & Grand, S. P. (1993). Constraining outermost core velocity with SmKS waves. Geophysical Research Letters, 20(22), 2463-2466.

Constraining outermost core velocity with SmKS waves. / Garnero, Edward; Helmberger, D. V.; Grand, S. P.

In: Geophysical Research Letters, Vol. 20, No. 22, 1993, p. 2463-2466.

Research output: Contribution to journalArticle

Garnero, E, Helmberger, DV & Grand, SP 1993, 'Constraining outermost core velocity with SmKS waves', Geophysical Research Letters, vol. 20, no. 22, pp. 2463-2466.
Garnero, Edward ; Helmberger, D. V. ; Grand, S. P. / Constraining outermost core velocity with SmKS waves. In: Geophysical Research Letters. 1993 ; Vol. 20, No. 22. pp. 2463-2466.
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