A Future for Drifting Seismic Networks

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Print Version (159383 bytes) EOS, TRANSACTIONS AMERICAN GEOPHYSICAL UNION, VOL. 87, NO. 31, doi:10.1029/2006EO310002, 2006 A Future for Drifting Seismic Networks Frederik J. Simons Department of Earth Sciences, University College London, London, UK Guust Nolet Department of Geosciences, Princeton University, New Jersey, USA Jeff M. Babcock Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California, USA Russ E. Davis Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, CA, USA John A. Orcutt Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, La Jolla, California, USA Abstract Earth models in which seismic wave speeds vary only with depth are sufficiently well constrained to accurately locate earthquakes and calculate the paths followed by seismic rays [Engdahl et al., 1998]. The differences between observations and theoretical predictions of seismograms in such one-(hyphen)dimensional Earth models can be used to reconstruct the three-dimensional (3-D) wave speed distribution in the regions sampled by the seismic waves by a procedure known as seismic tomography, a technique akin to medical CAT scanning. Published 1 August 2006. Index Terms: 7270 Seismology: Tomography (6982, 8180); 7203 Seismology: Body waves; 4594 Oceanography: Physical: Instruments and techniques. Print Version (159383 bytes) Citation: Simons, F. J., G. Nolet, J. M. Babcock, R. E. Davis, and J. A. Orcutt (2006), A Future for Drifting Seismic Networks, Eos Trans. AGU, 87(31), doi:10.1029/2006EO310002. Copyright 2006 by the American Geophysical Union.

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