从背景噪声提取瑞利面波频散曲线一方法与应用实例

地震 ›› 2014, Vol. 34 ›› Issue (3): 108-116.

从背景噪声提取瑞利面波频散曲线一方法与应用实例

李玲利^1,4, 王伟涛², 朱良保³, 陈浩朋³, 王清东³, 缪鹏¹, 王俊¹

1.安徽省地震局,安徽合肥230031;
2.中国地震局地球物理研究所,北京100081;
3.武汉大学测绘学院,湖北武汉430079;
4.蒙城地球物理国家野外科学观测研究站,安徽蒙城233500

收稿日期:2013-06-21 修回日期:2013-12-31 出版日期:2014-07-31 发布日期:2020-09-08
作者简介:李玲利(1981-),女,安徽阜阳人,固体地球物理学博士,主要从事地震面波层析成像、地震背景噪声工作的研究。
基金资助:
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)、以及安徽省地震局地震科研基金(20120702)联合资助

Processing Seismic A mbient Noise Data to obtain Reliable Surface Wave Dispersion Measurements

LI Ling-li^1,4, WANG Wei-tao², ZHU Liang-bao², CHEN Hao-peng², WANG Qing-dong², MIAO Peng¹, WANG Jun¹

1. Earthquake Administration of Anhui Province, Hefei 230032, China;
2. Institute of Geophysics, CEA, Beiing 100081,China;
3. Dept. of Geophysics, School of Geodesy and Geometrics, W uhan University, Wuhan 430079,China;
4. Mengcheng National Geophysical Observatory,Anhui, Mengcheng 233500,China

Received:2013-06-21 Revised:2013-12-31 Online:2014-07-31 Published:2020-09-08

摘要/Abstract

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。

关键词: 背景噪声, 互相关, 瑞利面波, 频散曲线

Abstract: 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 several 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:①single station data preparation; ②cross-correlation and temporal stacking;③measurements of dispersion curves ( performed with frequency-time analysis for both group and phase speeds);④quality 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.

Key words: Seismic ambient noise, Cross correlation, Rayleigh surface wave, Dispersion curves

中图分类号:

P315.7

李玲利, 王伟涛, 朱良保, 陈浩朋, 王清东, 缪鹏, 王俊. 从背景噪声提取瑞利面波频散曲线一方法与应用实例[J]. 地震, 2014, 34(3): 108-116.

LI Ling-li, WANG Wei-tao, ZHU Liang-bao, CHEN Hao-peng, WANG Qing-dong, MIAO Peng, WANG Jun. Processing Seismic A mbient Noise Data to obtain Reliable Surface Wave Dispersion Measurements[J]. EARTHQUAKE, 2014, 34(3): 108-116.

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