Characteristics of ambient seismic noise as a source for surface wave tomography

Yang, Yingjie; Ritzwoller, Michael H

doi:10.1029/2007GC001814

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Characteristics of ambient seismic noise as a source for surface wave tomography : CHARACTERISTICS OF AMBIENT SEISMIC NOISE

Author(s): Yingjie Yang , Michael H. Ritzwoller

Publication date Created: February 2008

Publication date (Print): February 2008

Journal: Geochemistry, Geophysics, Geosystems

Publisher: American Geophysical Union (AGU)

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High-Resolution Surface-Wave Tomography from Ambient Seismic Noise

N M Shapiro (2005)

Cross-correlation of 1 month of ambient seismic noise recorded at USArray stations in California yields hundreds of short-period surface-wave group-speed measurements on interstation paths. We used these measurements to construct tomographic images of the principal geological units of California, with low-speed anomalies corresponding to the main sedimentary basins and high-speed anomalies corresponding to the igneous cores of the major mountain ranges. This method can improve the resolution and fidelity of crustal images obtained from surface-wave analyses.