Inferences on ultralow‐velocity zone structure from a global analysis of SPdKS waves
MS Thorne, EJ Garnero - Journal of Geophysical Research …, 2004 - Wiley Online Library
Anomalous boundary layer structure at the core‐mantle boundary (CMB) is investigated
using a global set of broadband SKS and SPdKS waves from permanent and portable
broadband seismometer arrays. SPdKS is an SKS wave that intersects the CMB at the
critical angle for ScP, thus initiating a diffracted P wave (Pdiff) along the CMB at the core
entry and exit locations. The waveshape and timing of SPdKS data are analyzed relative to
SKS, with some SPdKS data showing significant delays and broadening. Broadband data …
using a global set of broadband SKS and SPdKS waves from permanent and portable
broadband seismometer arrays. SPdKS is an SKS wave that intersects the CMB at the
critical angle for ScP, thus initiating a diffracted P wave (Pdiff) along the CMB at the core
entry and exit locations. The waveshape and timing of SPdKS data are analyzed relative to
SKS, with some SPdKS data showing significant delays and broadening. Broadband data …
INFERENCES ON ULTRA-LOW VELOCITY ZONE STRUCTURE FROM A
MSTEJ Gamero - BROADBAND WAVEFORM MODELING OF - search.proquest.com
Anomalous boundary layer structure at the core-mantle boundary (CMB) is investigated
using a global set of broadband SKS and SPdKS waves from permanent and portable
broadband seismometer arrays. SPdKS is an SKS wave that intersects the CMB at the
critical angle for ScP, thus initiating a diffracted P-wave {Pdijf) along the CMB at the core
entry and exit locations. The wave shape and timing of SPdKS data are analyzed relative to
SKS, with some SPdKS data showing significant delays and broadening. Broadband data …
using a global set of broadband SKS and SPdKS waves from permanent and portable
broadband seismometer arrays. SPdKS is an SKS wave that intersects the CMB at the
critical angle for ScP, thus initiating a diffracted P-wave {Pdijf) along the CMB at the core
entry and exit locations. The wave shape and timing of SPdKS data are analyzed relative to
SKS, with some SPdKS data showing significant delays and broadening. Broadband data …
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