Work

Ambient Noise‐Derived SmS Splitting: A New Approach to Constraining Crustal Radial Anisotropy

Year: 2024

Type: article

Abstract: Recent studies have shown that crustal body wave phases, such as PmP or SmS, can be effectively retrieved from ambient noise cross‐correlations. However, few studies have used these phases to constrain crustal structures. In this study, we successfully retrieve SmS signals from ambient noise data and observe SmS splitting caused by crustal radial anisotropy. Furthermore, through simulations of synthetic tests and application to field data, we demonstrate that these SmS signals can be used to constrain crustal radial anisotropy structures through joint inversion with surface waves. Our findings suggest that SmS signals obtained from noise data can significantly enhance the understanding of fine crustal radial anisotropic structures.

Source: Geophysical Research Letters

DOI: 10.1029/2024gl111370

Authors: Jinyun Xie, Yingjie Yang, Yinhe Luo, Yanan Xie, Zhengyang Li

Institutions: Southern University of Science and Technology, China University of Geosciences, State Key Laboratory of Geological Processes and Mineral Resources

Language: English

Topic: Seismic Waves and Analysis

Subfield: Geophysics

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,900

Funders: National Natural Science Foundation of China, Natural Science Foundation of Hubei Province, China Scholarship Council, Postdoctoral Research Foundation of China