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Systemic Comparison of Seismometer Horizontal Orientations Based on Teleseismic Earthquakes and Ambient‐Noise Data

2018; Seismological Society of America; Linguagem: Inglês

10.1785/0120180087

1943-3573

Hongrui Xu, Yinhe Luo, Chi‐Chia Tang, Kaifeng Zhao, Jinyun Xie, Xiaozhou Yang,

Seismology and Earthquake Studies

Research Article| October 16, 2018 Systemic Comparison of Seismometer Horizontal Orientations Based on Teleseismic Earthquakes and Ambient‐Noise Data Hongrui Xu; Hongrui Xu aHubei Subsurface Multi‐scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, hongruixucug@126.comcctang@cug.edu.cnkaifeng.zhao@cug.edu.cn1749960222@qq.comyangxiaozhou@cug.edu.cn Search for other works by this author on: GSW Google Scholar Yinhe Luo; Yinhe Luo bState Key Laboratory of Geological Processes and Mineral Resources, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, luoyinhe@cug.edu.cn Search for other works by this author on: GSW Google Scholar Chi‐Chia Tang; Chi‐Chia Tang aHubei Subsurface Multi‐scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, hongruixucug@126.comcctang@cug.edu.cnkaifeng.zhao@cug.edu.cn1749960222@qq.comyangxiaozhou@cug.edu.cn Search for other works by this author on: GSW Google Scholar Kaifeng Zhao; Kaifeng Zhao aHubei Subsurface Multi‐scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, hongruixucug@126.comcctang@cug.edu.cnkaifeng.zhao@cug.edu.cn1749960222@qq.comyangxiaozhou@cug.edu.cn Search for other works by this author on: GSW Google Scholar Jinyun Xie; Jinyun Xie aHubei Subsurface Multi‐scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, hongruixucug@126.comcctang@cug.edu.cnkaifeng.zhao@cug.edu.cn1749960222@qq.comyangxiaozhou@cug.edu.cn Search for other works by this author on: GSW Google Scholar Xiaozhou Yang Xiaozhou Yang aHubei Subsurface Multi‐scale Imaging Key Laboratory, Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan, Hubei 430074, China, hongruixucug@126.comcctang@cug.edu.cnkaifeng.zhao@cug.edu.cn1749960222@qq.comyangxiaozhou@cug.edu.cn Search for other works by this author on: GSW Google Scholar Bulletin of the Seismological Society of America (2018) 108 (6): 3576–3589. https://doi.org/10.1785/0120180087 Article history first online: 16 Oct 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation Hongrui Xu, Yinhe Luo, Chi‐Chia Tang, Kaifeng Zhao, Jinyun Xie, Xiaozhou Yang; Systemic Comparison of Seismometer Horizontal Orientations Based on Teleseismic Earthquakes and Ambient‐Noise Data. Bulletin of the Seismological Society of America 2018;; 108 (6): 3576–3589. doi: https://doi.org/10.1785/0120180087 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract The determination of the accurate orientation of seismometer sensors is critical for measuring seismic observations from three‐component (3C) sensors. However, aligning a 3C seismometer to the true orientation in the field, especially the two horizontal components of sensors, is not an easy task. Thus, orientation correction is usually carried out in the stage of seismic data processing. In this study, we systematically compare the orientation correction method based on earthquake data with that based on ambient‐noise cross correlations (CCs). Based on our investigation, we draw the following conclusions: (1) orientation measurements based on ambient‐noise CCs are consistent with those based on earthquake data. Moreover, orientation measurements based on long‐term CCs of ambient noise are more reliable than those based on teleseismic earthquakes; (2) orientation measurements of sensors on land based on relatively long‐period (20–50 s) ambient‐noise CCs are more stable than those based on short‐period (10–20 s) ones; and (3) orientation measurements based on ambient‐noise CCs using only one month of noise data are still reliable and stable. You do not currently have access to this article.