摘要
利用地震背景噪声提取台站间的面波频散信息,进而进行地下结构研究是目前地球物理学的研究热点之一。本文详细介绍了该方法的发展历程,并以流动台阵和固定地震台站数据为例给出了较为详细的噪声数据处理过程,重点阐述了如何利用地震背景噪声提取瑞利面波的频散曲线。此外,对基层科研人员如何更好地应用固定台站数据资料的技术细节问题给出了具体解决方案。
Ambient noise tomography is a rapidly emerging field of seismological research. This paper presents the current status of ambient noise data processing as it has developed over the past severM years, and it was intended to explain and justify this development through salient examples. The ambient noise data processing procedure is divided into four principal phases： （2） single station data preparation; （2） cross-correlation and temporal stacking; （3） measurements of dispersion curves （performed with frequency-time analysis for both group and phase speeds） ;（4） quality control, including SNR analysis and selection of the acceptable measurements. In addition, we gave a specific solution for how to use these seismic station data better in ambient noise study.
出处
《地震》
CSCD
北大核心
2014年第3期108-116,共9页
Earthquake
基金
中国国家自然科学基金(40774018)
中国地震局地震科技星火专项(XH13009Y)
安徽省地震局地震科研基金(20120702)联合资助
关键词
背景噪声
互相关
瑞利面波
频散曲线
Seismic ambient noise
Cross-correlation
Rayleigh surface wave
Dispersion curves
