中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院油气资源研究重点实验室
Locating Tremor Using Least-Squares Interferometric Source Location Imaging Method

文献类型：期刊论文

作者Wu, Shaojiang1,2; Wang, Yibo1,2
刊名IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
出版日期2023
卷号61页码:10
ISSN号0196-2892
关键词Interferometric inverse problems mathematical model tremor location
DOI10.1109/TGRS.2023.3300959
英文摘要In volcanic monitoring, accurate source locations of volcanic tremors are helpful to understand the volcanic activity and further predict an eruption. The waveform-based interferometric source location imaging method is a conventional and effective tool for locating tremors, which usually have complex signals that lack clear phases and onsets. However, the imaged source locations are degraded by the blurring effect caused mainly by the limited source-receiver geometry, showing as low resolution and high uncertainty. We introduce the Hessian matrix, which governs the blurring effect, into the interferometric source location imaging method. The proposed Hessian-based least-squares interferometric source location imaging method consists of three steps: 1) construct Hessian matrix of source location; 2) obtain an initial source location image by summating backprojections of the correlograms; and 3) update the source location image using a Hessian-based least-squares inversion. We assess the robustness of the proposed method using synthetic data with the consideration of different source locations and velocity errors. Compared with the conventional method, the proposed method can reduce the blurring effect of Hessian matrix and provide high-resolution and low-uncertainty source locations, no matter whether the source is inside or outside the seismic network. We apply the proposed method to a real tremor that occurred at Katla volcano. The method recovers the tremor location within 1 km from its most likely source zone.
WOS关键词MICROSEISMIC SOURCE LOCATIONS ; VOLCANIC TREMORS
资助项目National Key Research and Development Program of China[2021YFA0716800] ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research[YSBR-020] ; Youth Innovation Promotion Association CAS[Y201917]
WOS研究方向Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号WOS:001050018600029
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Chinese Academy of Sciences (CAS) Project for Young Scientists in Basic Research ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/111431]  
专题地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者Wang, Yibo
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Key Lab Petr Resource Res, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Shaojiang,Wang, Yibo. Locating Tremor Using Least-Squares Interferometric Source Location Imaging Method[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2023,61:10.
APA Wu, Shaojiang,&Wang, Yibo.(2023).Locating Tremor Using Least-Squares Interferometric Source Location Imaging Method.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,61,10.
MLA Wu, Shaojiang,et al."Locating Tremor Using Least-Squares Interferometric Source Location Imaging Method".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 61(2023):10.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。