Frequency‐Bessel Transform Method for Effective Imaging of Higher‐Mode Rayleigh Dispersion Curves From Ambient Seismic Noise Data
نویسندگان
چکیده
منابع مشابه
Emergence of broadband Rayleigh waves from correlations of the ambient seismic noise
[1] We demonstrate that the coherent information about the Earth structure can be extracted from the ambient seismic noise. We compute cross-correlations of vertical component records of several days of seismic noise at different pairs of stations separated by distances from about one hundred to more than two thousand kilometers. Coherent broadband dispersive wavetrains clearly emerge with grou...
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A. Diez,1 P.D. Bromirski,1 P. Gerstoft,1 R.A. Stephen,2 R.E. Anthony,3 R.C. Aster,3 C. Cai,4 A. Nyblade5 and D.A. Wiens4 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0209, USA. E-mail: [email protected] 2Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 3Department of Geosciences, Warner College of Natural Resources, Colorado State Uni...
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We perform ambient noise tomography of China using the data from the China National Seismic Network and surrounding global and PASSCAL stations. The results so far are summarized below. (1) Dispersion measurements and tomography. For most of the station pairs, we retrieve good Rayleigh waveforms from ambient noise correlations using 18-months of continuous data at all distance ranges across the...
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[1] In order to use ambient seismic noise for mapping Earth’s structure, it is important to understand the spatiotemporal characteristics of the noise field. This study uses data collected during four austral winter months of 2002 to investigate New Zealand’s ambient seismic noise field in the double-ocean-wave-frequency range (0.1–0.3 Hz). It is shown via beamforming analysis that there are tw...
متن کاملSurface Wave Tomography of China from Ambient Seismic Noise Correlation
We perform ambient noise tomography of China using the data from the China National Seismic Network and surrounding global and regional stations. For most of the station pairs, we retrieve good Rayleigh waveforms from ambient noise correlations using 18-months of continuous data at all distance ranges across the entire region (over 5000 km) and for periods from 70 s down to about 8 s. We obtain...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research: Solid Earth
سال: 2019
ISSN: 2169-9313,2169-9356
DOI: 10.1029/2018jb016595