{"title":"从主动源和被动源表面波数据中提取多模态瑞利波频散谱的频率-汉克尔变换方法","authors":"Zhentao Yang, Yao-Chong Sun, Dazhou Zhang, Peng Han, Xiaofei Chen","doi":"10.1190/geo2023-0189.1","DOIUrl":null,"url":null,"abstract":"Rayleigh wave dispersion energy spectra have been widely used to extract dispersion curves and invert for underground shear-wave velocity structures for engineering geophysics and seismology. We propose a frequency-Hankel (F-H) transform method to extract high-quality multimodal Rayleigh wave dispersion energy spectra from active and passive source Rayleigh wave data. The F-H transform method is inspired by the frequency-Bessel (F-J) transform method and considers the physical meaning of Greens functions for Rayleigh wave dispersion analysis. The F-H transform method can naturally avoid crossed artefacts caused by converging waves on F-J spectrograms and obtains more multimodal dispersion spectra of the same quality with fewer Rayleigh wave data than the F-J transform method. Both synthetic and field Rayleigh wave data from active and passive sources for near-surface exploration and ambient noise tomography are used to demonstrate the validity, accuracy and applicability of the F-H transform method. The F-H transform method unifies the F-J transform method and its modifications for active and passive sources Rayleigh wave data. The F-H transform method is a robust and efficient multimodal Rayleigh wave dispersion analysis method for active and passive source Rayleigh wave data.","PeriodicalId":55102,"journal":{"name":"Geophysics","volume":null,"pages":null},"PeriodicalIF":3.0000,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A frequency-Hankel transform method to extract multimodal Rayleigh wave dispersion spectra from active and passive source surface wave data\",\"authors\":\"Zhentao Yang, Yao-Chong Sun, Dazhou Zhang, Peng Han, Xiaofei Chen\",\"doi\":\"10.1190/geo2023-0189.1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Rayleigh wave dispersion energy spectra have been widely used to extract dispersion curves and invert for underground shear-wave velocity structures for engineering geophysics and seismology. We propose a frequency-Hankel (F-H) transform method to extract high-quality multimodal Rayleigh wave dispersion energy spectra from active and passive source Rayleigh wave data. The F-H transform method is inspired by the frequency-Bessel (F-J) transform method and considers the physical meaning of Greens functions for Rayleigh wave dispersion analysis. The F-H transform method can naturally avoid crossed artefacts caused by converging waves on F-J spectrograms and obtains more multimodal dispersion spectra of the same quality with fewer Rayleigh wave data than the F-J transform method. Both synthetic and field Rayleigh wave data from active and passive sources for near-surface exploration and ambient noise tomography are used to demonstrate the validity, accuracy and applicability of the F-H transform method. The F-H transform method unifies the F-J transform method and its modifications for active and passive sources Rayleigh wave data. The F-H transform method is a robust and efficient multimodal Rayleigh wave dispersion analysis method for active and passive source Rayleigh wave data.\",\"PeriodicalId\":55102,\"journal\":{\"name\":\"Geophysics\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2023-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Geophysics\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1190/geo2023-0189.1\",\"RegionNum\":2,\"RegionCategory\":\"地球科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Geophysics","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1190/geo2023-0189.1","RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
A frequency-Hankel transform method to extract multimodal Rayleigh wave dispersion spectra from active and passive source surface wave data
Rayleigh wave dispersion energy spectra have been widely used to extract dispersion curves and invert for underground shear-wave velocity structures for engineering geophysics and seismology. We propose a frequency-Hankel (F-H) transform method to extract high-quality multimodal Rayleigh wave dispersion energy spectra from active and passive source Rayleigh wave data. The F-H transform method is inspired by the frequency-Bessel (F-J) transform method and considers the physical meaning of Greens functions for Rayleigh wave dispersion analysis. The F-H transform method can naturally avoid crossed artefacts caused by converging waves on F-J spectrograms and obtains more multimodal dispersion spectra of the same quality with fewer Rayleigh wave data than the F-J transform method. Both synthetic and field Rayleigh wave data from active and passive sources for near-surface exploration and ambient noise tomography are used to demonstrate the validity, accuracy and applicability of the F-H transform method. The F-H transform method unifies the F-J transform method and its modifications for active and passive sources Rayleigh wave data. The F-H transform method is a robust and efficient multimodal Rayleigh wave dispersion analysis method for active and passive source Rayleigh wave data.
期刊介绍:
Geophysics, published by the Society of Exploration Geophysicists since 1936, is an archival journal encompassing all aspects of research, exploration, and education in applied geophysics.
Geophysics articles, generally more than 275 per year in six issues, cover the entire spectrum of geophysical methods, including seismology, potential fields, electromagnetics, and borehole measurements. Geophysics, a bimonthly, provides theoretical and mathematical tools needed to reproduce depicted work, encouraging further development and research.
Geophysics papers, drawn from industry and academia, undergo a rigorous peer-review process to validate the described methods and conclusions and ensure the highest editorial and production quality. Geophysics editors strongly encourage the use of real data, including actual case histories, to highlight current technology and tutorials to stimulate ideas. Some issues feature a section of solicited papers on a particular subject of current interest. Recent special sections focused on seismic anisotropy, subsalt exploration and development, and microseismic monitoring.
The PDF format of each Geophysics paper is the official version of record.