Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009geoji.178.1289d&link_type=abstract
Geophysical Journal International, Volume 178, Issue 2, pp. 1289-1304.
Astronomy and Astrophysics
Astronomy
Interferometry, Electromagnetic Theory, Theoretical Seismology, Wave Propagation
Scientific paper
Interferometric Green's function representations can be used to retrieve a Green's function between two receiver stations, effectively turning one receiver into a source. Through reciprocity theorems of the convolution and correlation types, we derive interferometric Green's function representations for coupled electromagnetic and seismic wave propagation in 1-D. These representations express a symmetrized Green's function in terms of correlations of sources distributed throughout the domain of reciprocity and on its boundary. The main challenge for practical implementation is the necessity of sources throughout a domain. Numerical examples show how this constraint can be relaxed for different configurations. In a configuration of two layers bounded by a vacuum, seismic noise sources behind the interface can be used to recover seismoelectric reflection responses that suffer from small amplitude losses, but are not corrupted by spurious events.
de Ridder Sjoerd A. L.
Slob Evert
Wapenaar Kees
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