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中国科学院大学学报 ›› 2011, Vol. 28 ›› Issue (4): 475-480.DOI: 10.7523/j.issn.2095-6134.2011.4.008

• 论文 • 上一篇    下一篇

三维Q值层析成像人机交互软件及其在地震数据处理中的应用

樊计昌, 刘明军, 海燕   

  1. 中国地震局地球物理勘探中心, 郑州 450002
  • 收稿日期:2010-07-12 修回日期:2010-10-29 发布日期:2011-07-15
  • 基金资助:

    国家自然科学基金(40774071,40974033)资助 

Interactive software for three-dimensional Q tomography and its application to seismic data processing

FAN Ji-Chang, LIU Ming-Jun, HAI Yan   

  1. Geophysical Exploration Center, China Seismological Administration, Zhengzhou 450002, China
  • Received:2010-07-12 Revised:2010-10-29 Published:2011-07-15

摘要:

Q值结构对了解地壳的非弹性性质、地壳内部构造、热活动状态、地壳介质非均匀性以及断层分布有着重要的意义.编写了基于吸收特征时间t*的三维Q值层析成像人机交互软件,可以方便快捷地计算地震体波(P波和S波)的振幅谱并通过拟合振幅谱得到反映地震波衰减的吸收特征时间t*,并利用t*资料通过三维Q值层析成像方法得到三维Q值结构.实际观测资料处理结果表明,文中给出的方法和软件是有效且可行的.

关键词: 三维Q值层析成像, 吸收特征时间, Q值结构, 地震波形, 人机交互软件

Abstract:

Q-value structure of the crust is of great significance for understanding of non-elastic nature of crustal structure, thermal activity, crustal inhomogeneity, and fault distribution. We present an interactive software for three-dimensional Q tomography based on absorption characteristic time t*. Amplitude spectra of seismic data (P-wave and S-wave) can then be calculated quickly and easily, absorption characteristic times can be obtained through fitting amplitude spectra, and three-dimensional Q structure can be obtained by using the Q tomography method and t* data. The real example shows that the method and software are effective and feasible.

Key words: three-dimensional Q tomography, absorption characteristic time, Q value structure, seismic waveform, interactive software

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