气候变化领域集成服务门户(CCPortal): The Frequency-Bessel Spectrograms of Multicomponent Cross-Correlation Functions From Seismic Ambient Noise

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DOI	10.1029/2020JB019630
	The Frequency-Bessel Spectrograms of Multicomponent Cross-Correlation Functions From Seismic Ambient Noise
	Hu S.; Luo S.; Yao H.
发表日期	2020
ISSN	21699313
卷号	125 期号:8
英文摘要	The recently developed frequency-Bessel transformation (F-J) method is effective to extract multimode surface wave dispersion curves from ambient noise cross-correlation functions (CCFs). However, this method is currently limited to the vertical-vertical component CCFs, and only Rayleigh wave dispersion curves can be obtained. In this study, we first relate the F-J spectrogram to the spatial autocorrelation coefficients; we then extend the F-J method to the full multicomponent CCFs tensor, including the radial-radial, transverse-transverse, and the mixed-component CCFs. Using the newly derived formulation, not only the signal of higher-mode Rayleigh wave phase velocity dispersion can be enhanced, but also the multimode Love wave phase velocity dispersion curves and the higher-mode Rayleigh wave ellipticity can be extracted. The formulation is tested in several numerical examples and is applied to field data in North America. Our derivation and formulation provide an extension to the current F-J method and help to take usage of multicomponent CCFs. The resulting higher-mode surface wave dispersions and Rayleigh wave ellipticity provide complementary constraint on the Earth structures. ©2020. American Geophysical Union. All Rights Reserved.
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187694
作者单位	Hubei Subsurface Multi-scale Imaging Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, China; Laboratory of Seismology and Physics of Earth's Interior, School of Earth and Space Sciences, University of Science of Technology of China, Hefei, China; Mengcheng National Geophysical Observatory, University of Science and Technology of China, Mengcheng, China; CAS Center for Excellence in Comparative Planetology, USTC, Hefei, China
推荐引用方式 GB/T 7714	Hu S.,Luo S.,Yao H.. The Frequency-Bessel Spectrograms of Multicomponent Cross-Correlation Functions From Seismic Ambient Noise[J],2020,125(8).
APA	Hu S.,Luo S.,&Yao H..(2020).The Frequency-Bessel Spectrograms of Multicomponent Cross-Correlation Functions From Seismic Ambient Noise.Journal of Geophysical Research: Solid Earth,125(8).
MLA	Hu S.,et al."The Frequency-Bessel Spectrograms of Multicomponent Cross-Correlation Functions From Seismic Ambient Noise".Journal of Geophysical Research: Solid Earth 125.8(2020).