Teleseismic correlations of ambient seismic noise for deep global imaging of the Earth.

P. Boué, P. Poli, M. Campillo, H. Pedersen, X. Briand, P. Roux.

Monday 29 April 2013, by briandx // Publications

Teleseismic correlations of ambient seismic noise for deep global imaging of the Earth.

P. Boué, P. Poli, M. Campillo, H. Pedersen, X. Briand, P. Roux.

Geophysical Journal International 2013, in press.

Abstract

We present here a global analysis showing that wave paths probing the deepest part of the Earth can be obtained from ambient noise records. Correlations of seismic noise recorded at sensors located various distances
apart provide new virtual seismograms for paths that are not present in earthquake data. The main arrivals already known for earthquake data are
also present in teleseismic correlations sections, including waves that have
propagated through the Earth’s core. We present examples of applications of such teleseismic correlations to lithospheric imaging, study of the core
mantle boundary or of the anisotropy of the inner core.

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