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- 青木 治三
- 名古屋大学理学部
書誌事項
- タイトル別名
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- Focal Mechanism Computation by Means of Fourier Analysis
- Fourier カイセキ ニ ヨル ジシン メカニズム カイ
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Fast computation of focal mechanism is achieved with the use of Fourier analysis for a P-wave polarity distribution on a focal sphere. If the focal sphere is rotated so as to give a vertical null axis, the polarity becomes a function of azimuth only. Let every positive and negative polarities be given a value of +1 and -1, respectively, then the polarity distribution is approximated by a periodic square function of period π, which provides a new technique for the focal mechanism solution. The direction of a nodal plane is fundamentally constrained by the phase angle of Fourier component at period π for the function. However, the null axis should systematically be sought on the focal sphere till the best fit to the polarity data is obtained.
収録刊行物
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- 地震 第2輯
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地震 第2輯 39 (2), 251-256, 1986
公益社団法人 日本地震学会
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詳細情報 詳細情報について
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- CRID
- 1390282679281700096
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- NII論文ID
- 130006786870
- 40001526370
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- NII書誌ID
- AN00305741
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- ISSN
- 18839029
- 2186599X
- 00371114
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- NDL書誌ID
- 3090979
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- データソース種別
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- JaLC
- NDL
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