| 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 |
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| 作者姓名： | 樊计昌 刘明军 海燕 |
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| 作者单位： | 中国地震局地球物理勘探中心, 郑州 450002 |
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| 基金项目： | 国家自然科学基金(40774071,40974033)资助 |
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| 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.
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| 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 |
| 收稿时间： | 2010-07-12 |
| 修稿时间： | 2010-10-29 |
Interactive software for three-dimensional Q tomography and its application to seismic data processing |
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| Authors: | FAN Ji-Chang LIU Ming-Jun HAI Yan |
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| Institution: | Geophysical Exploration Center, China Seismological Administration, Zhengzhou 450002, China |
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| 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. |
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| Keywords: | three-dimensional Q tomography absorption characteristic time Q value structure seismic waveform interactive software |
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