Open AccessTeleseismic correlations of ambient seismic noise for deep global imaging of the Earth
Author(s) -
Pierre Boué,
Piero Poli,
Míchel Campillo,
Helle A. Pedersen,
X. Briand,
Philippe Roux
Publication year - 2013
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1093/gji/ggt160
Subject(s) - geology , seismology , seismogram , lithosphere , seismic interferometry , geophysics , inner core , seismic noise , structure of the earth , seismic wave , ambient noise level , mantle (geology) , noise (video) , seismic anisotropy , geodesy , tectonics , interferometry , physics , sound (geography) , astronomy , geomorphology , artificial intelligence , computer science , image (mathematics)
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.