FDM computation of seismic wavefield for an axisymmetric earth with a moment tensor point source
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- Toyokuni Genti
- Department of Earth and Planetary Sciences, Kyushu University
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- Takenaka Hiroshi
- Department of Earth and Planetary Sciences, Kyushu University
書誌事項
- 公開日
- 2006
- DOI
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- 10.1186/bf03352593
- 公開者
- 地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会
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説明
Axisymmetric modeling has been playing an important role in global seismic waveform modeling since it can correctly model geometrical spreading effects in 3-D within computational resources comparable to 2-D modeling. However, in the previous investigations on axisymmetric modeling, seismic sources were restricted to axisymmetric sources such as an explosive source. In this paper, we propose implementation of an arbitrary moment tensor point source to axisymmetric modeling using the finite-difference method (FDM). The validity and efficiency of this technique are demonstrated by comparing synthetic seismograms with analytical solutions for a homogeneous earth model, as well as with the DSM synthetics for a spherically symmetric earth. We also show a numerical example with a subducting slab structure.
収録刊行物
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- Ｅａｒｔｈ， Ｐｌａｎｅｔｓ ａｎｄ Ｓｐａｃｅ
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Ｅａｒｔｈ， Ｐｌａｎｅｔｓ ａｎｄ Ｓｐａｃｅ 58 (8), e29-e32, 2006
地球電磁気・地球惑星圏学会 、公益社団法人 日本地震学会、特定非営利活動法人 日本火山学会、日本測地学会、日本惑星科学会
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詳細情報 詳細情報について
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- CRID
- 1390001206512554752
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- NII論文ID
- 10024496016
- 130003781225
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- NII書誌ID
- AA11211921
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- ISSN
- 18805981
- 13438832
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- NDL書誌ID
- 8649097
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- Web Site
- http://id.ndl.go.jp/bib/8649097
- https://ndlsearch.ndl.go.jp/books/R000000004-I8649097
- https://dl.ndl.go.jp/pid/8962239
- https://link.springer.com/content/pdf/10.1186/BF03352593.pdf
- https://link.springer.com/article/10.1186/BF03352593/fulltext.html
- http://link.springer.com/content/pdf/10.1186/BF03352593
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- 本文言語コード
- en
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