A new method to estimate ocean-bottom-seismometer orientation using teleseismic receiver functions

doi:10.1093/gji/ggaa041

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	A new method to estimate ocean-bottom-seismometer orientation using teleseismic receiver functions
	Zheng, Hong 1,2,3; Fan, Jianke 1,2,5; Zhao, Dapeng 4; Li, Cuilin 1,2,5; Dong, Dongdong 1,2,5; Zhang, Guangxu 1,5; Wang, Xiujuan 1,5
刊名	GEOPHYSICAL JOURNAL INTERNATIONAL
	2020-05-01
卷号	221 期号:2 页码:893-904
关键词	Time-series analysis Body waves Computational seismology Seismic instruments
ISSN号	0956-540X
DOI	10.1093/gji/ggaa041
通讯作者	Fan, Jianke(fanjianke@qdio.ac.cn)
英文摘要	The orientation of an ocean-bottom-seismometer (OBS) is a critical parameter for analysing three-component seismograms, but it is difficult to estimate because of the uncontrollable OBS posture after its deployment. In this study, we develop a new and effective method to estimate the OBS orientation by fitting the amplitude of direct P wave of teleseismic receiver functions. The reliability of this method is verified using synthetic data and observed waveforms recorded at land seismic stations in Shandong Province, China. Our extensive synthetic tests show that our new method is little affected by a thin sedimentary layer that has a low S-wave velocity. The orientations of OBS stations that we deployed in the Yap subduction zone in the Western Pacific Ocean are estimated and corrected using our new method. After the correction, the direct P waves of teleseismic receiver functions show very good consistency. The effects of white and coloured noise in different levels, epicentral distance and backazimuth arc also investigated, and the results show that these factors have small effects on the new method. We also examine the effect of sensor tilting on estimation of the OBS orientation, and find that a tilting correction should be made before the misorientation correction. We compare the OBS orientations determined with the new method and other methods and find that they are generally consistent with each other. We also discuss advantages and shortcomings of various methods, and think that our new method is more robust than the existing methods.
资助项目	National Natural Science Foundation of China[41876043] ; National Natural Science Foundation of China[91958211] ; Key Deployment Project of Center for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2019Q10] ; Japan Society for the Promotion of Science[19H01996]
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	OXFORD UNIV PRESS
WOS记录号	WOS:000525949600010
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167148]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Fan, Jianke
作者单位	1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Thchnol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tohoku Univ, Grad Sch Sci, Dept Geophys, Sendai, Miyagi 9808578, Japan 5.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Hong,Fan, Jianke,Zhao, Dapeng,et al. A new method to estimate ocean-bottom-seismometer orientation using teleseismic receiver functions[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2020,221(2):893-904.
APA	Zheng, Hong.,Fan, Jianke.,Zhao, Dapeng.,Li, Cuilin.,Dong, Dongdong.,...&Wang, Xiujuan.(2020).A new method to estimate ocean-bottom-seismometer orientation using teleseismic receiver functions.GEOPHYSICAL JOURNAL INTERNATIONAL,221(2),893-904.
MLA	Zheng, Hong,et al."A new method to estimate ocean-bottom-seismometer orientation using teleseismic receiver functions".GEOPHYSICAL JOURNAL INTERNATIONAL 221.2(2020):893-904.