Bayesian Inversion of Multimode Interface-Wave Dispersion From Ambient Noise

IOCAS-IR > 海洋地质与环境重点实验室

	Bayesian Inversion of Multimode Interface-Wave Dispersion From Ambient Noise
	Li, Cuilin; Dosso, Stan E.; Dong, Hefeng; Yu, Dingyong; Liu, Lanbo; Li, CL (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China.
	2012
发表期刊	IEEE JOURNAL OF OCEANIC ENGINEERING
ISSN	0364-9059
卷号	37 期号:3 页码:407-416
摘要	This paper applies nonlinear Bayesian inversion to estimate seabed shear-wave speed profiles and their uncertainties using interface-wave dispersion curves extracted from ocean ambient noise, and compares the resolution of seabed structure for fundamental mode and multimode data. Ambient noise recordings were collected for 2.15 h at hydrophones of an entrenched ocean bottom cable in the North Sea. Scholte-wave dispersion curves for the fundamental mode and several higher order modes within the frequency range 0.25-3.9 Hz are extracted from cross correlations of noise recordings at sensor pairs via the slowness-frequency transform. The Bayesian information criterion is used to determine the preferred model parameterizations in terms of the number of sediment layers supported by the data for inversions based on the fundamental mode alone and on the first three modes. Adaptive hybrid optimization and Metropolis-Hastings sampling are applied to estimate the optimum a posteriori shear-wave speed models and to compute marginal posterior probability distributions and profiles. The results show quantitatively that multimode inversion provides higher resolution of shallow shear-wave speed structure with smaller uncertainties at all depths than inversion of the fundamental mode alone.
关键词	Shear Speed Profiles Ocean Sediments Model Sea
学科领域	Engineering, Civil ; Engineering, Ocean ; Engineering, Electrical & Electronic ; Oceanography
URL	查看原文
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/12493
专题	海洋地质与环境重点实验室
通讯作者	Li, CL (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China.
推荐引用方式 GB/T 7714	Li, Cuilin,Dosso, Stan E.,Dong, Hefeng,et al. Bayesian Inversion of Multimode Interface-Wave Dispersion From Ambient Noise[J]. IEEE JOURNAL OF OCEANIC ENGINEERING,2012,37(3):407-416.
APA	Li, Cuilin,Dosso, Stan E.,Dong, Hefeng,Yu, Dingyong,Liu, Lanbo,&Li, CL .(2012).Bayesian Inversion of Multimode Interface-Wave Dispersion From Ambient Noise.IEEE JOURNAL OF OCEANIC ENGINEERING,37(3),407-416.
MLA	Li, Cuilin,et al."Bayesian Inversion of Multimode Interface-Wave Dispersion From Ambient Noise".IEEE JOURNAL OF OCEANIC ENGINEERING 37.3(2012):407-416.

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