著者

平原 和朗

出版者

公益社団法人 日本地震学会

雑誌

地震 第2輯 (ISSN:00371114)

巻号頁・発行日

vol.43, no.2, pp.291-306, 1990-06-24 (Released:2010-03-11)

参考文献数

107

被引用文献数

1

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Seismic tomography has revelaed the three-dimensional structure of Earth's interior in several scales, which has improved our understanding of geophysical and geological processes in the Earth. The present paper reviews three-dimensional inversion methods of seismic body-wave data, stressing the technical details encountered in actual analyses of travel time data. Especially, the paper gives the detailed description of the formulation of three-dimensional inversion problems, the parameterization of structure, the technique of parameter separation, and solving methods of observational equations with resolution analyses (a matrix and interative back-projection methods).