有限频率地震层析成像方法及研究进展

摘要/Abstract

摘要： 本文从基于射线理论的走时地震层析成像的发展引出有限频率地震层析成像, 说明两者最为本质的差别是有限频率灵敏度核函数。概述了有限频率层析成像方法和基本原理, 详细阐述了国内外有关有限频率层析成像方法的研究进展和应用成果, 强调有限频率层析成像对全球地幔柱研究的重要意义, 最后指出有限频率层析成像方法在理论上的诸多优点目前还没有在实际应用中得到充分体现, 还存在一些问题需要解决。

关键词: 有限频率层析成像, 灵敏度核函数, 宽频带地震波形, 三维速度结构, 地幔柱

Abstract: This paper introduces the finite-frequency tomography (FFT) from traveltime seismic tomography based on ray theory. It points out that the essential difference between FFT and the traveltime seismic tomography lies in the sensitivity kernel. The methods and principles of FFT are summarized, and progresses in methods and applications of FFST are reviewed in detail. The significance of FFST on the study of global mantle plume is emphasized. Finally, some existent problems in study of regional 3D velocity structure using FFT are discussed.

Key words: Finite-frequency tomography, Sensitivity kernel, Broadband seismic waveform, 3-D velocity structure, Mantle plume

中图分类号:

P315.7

杨峰, 黄金莉. 有限频率地震层析成像方法及研究进展[J]. 地震, 2009, 29(4): 52-62.

YANG Feng, HUANG Jin-li. Finite-Frequency Seismic Tomography: Methods and Progresses[J]. EARTHQUAKE, 2009, 29(4): 52-62.

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