南方科技大学知识苑(SUSTech KC): Broadband Love Wave Phase Velocity Maps Based on Modified Double-Beamforming of Ambient Noise Cross-Correlations

题名	Broadband Love Wave Phase Velocity Maps Based on Modified Double-Beamforming of Ambient Noise Cross-Correlations
作者	Zhao, Kaifeng 1,2,3; Yang, Yingjie3,4 ; Luo, Yinhe 1,2
通讯作者	Yang, Yingjie; Luo, Yinhe
发表日期	2024-03-01
DOI	10.1029/2023JB026871
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 影响因子和分区
ISSN	2169-9313
EISSN	2169-9356
卷号	129 期号:3
摘要	Ambient noise tomography has become a popular method in the past two decades to image the crust and uppermost mantle structure. To date, broadband Rayleigh wave signals can be obtained from ambient noise, which can be utilized to study the earth's interior structure from the surface down to similar to 200-300 km depths. However, it is hard to extract intermediate- and long-period (>50 s) Love wave signals from ambient noise using conventional data processing techniques for ambient noise. Array-based data processing techniques can enhance weak signals. In this study, we adopt a modified algorithm of the double-beamforming method to extract broadband Love wave signals from ambient noise. We validate the accuracy of the dispersion curves measured from our method by comparing them to those measured from the conventional method. Then, we use a finite frequency ambient noise tomography method to construct broadband Love wave phase velocity maps across the contiguous USA. These phase velocity maps are consistent with those obtained from conventional methods at short periods (<40 s). Finally, we analyze the resolution of our double-beamforming method based on checkerboard tests and find that the resolution of phase velocity maps based on our method is close to the aperture of the subarrays used in our double-beamforming method.
关键词	ambient noise Love waves phase velocity double-beamforming cross-correlations broadband
相关链接	[来源记录]
收录类别	SCI
语种	英语
学校署名	通讯
资助项目	National Natural Science Foundation of China["2023AFD211","41904058","42074055","42074069"] ; MOST Special Fund from the State Key Laboratory of Geological Processes and Mineral Resources[MSFGPMR2022-4] ; Fundamental Research Funds for the Central Universities, China University of Geosciences[2021M702993]
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:001184908400001
出版者	AMER GEOPHYSICAL UNION
ESI学科分类	GEOSCIENCES
来源库	Web of Science
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/788953
专题	理学院_地球与空间科学系南方科技大学
作者单位	1.China Univ Geosci, Sch Geophys & Geomatics, Hubei Subsurface Multiscale Imaging Key Lab, Wuhan, Peoples R China 2.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan, Peoples R China 3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China 4.Southern Univ Sci & Technol, Guangdong Prov Key Lab Geophys High Resolut Imagin, Shenzhen, Peoples R China
第一作者单位	地球与空间科学系
通讯作者单位	地球与空间科学系; 南方科技大学
推荐引用方式 GB/T 7714	Zhao, Kaifeng,Yang, Yingjie,Luo, Yinhe. Broadband Love Wave Phase Velocity Maps Based on Modified Double-Beamforming of Ambient Noise Cross-Correlations[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2024,129(3).
APA	Zhao, Kaifeng,Yang, Yingjie,&Luo, Yinhe.(2024).Broadband Love Wave Phase Velocity Maps Based on Modified Double-Beamforming of Ambient Noise Cross-Correlations.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,129(3).
MLA	Zhao, Kaifeng,et al."Broadband Love Wave Phase Velocity Maps Based on Modified Double-Beamforming of Ambient Noise Cross-Correlations".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 129.3(2024).