从背景噪声提取瑞利面波频散曲线一方法与应用实例

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

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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

Abstract

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

CLC Number:

P315.7

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

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