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37. Dispersion of Surface Waves in High-Velocity Layer Models
https://doi.org/10.15083/0000033289
https://doi.org/10.15083/000003328976ef48b6-0e96-4219-99c3-ca0681355444
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0485002.pdf (880.3 kB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-05-30 | |||||
| タイトル | ||||||
| タイトル | 37. Dispersion of Surface Waves in High-Velocity Layer Models | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.15083/0000033289 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | 37.高速度層モデルを伝わる表面波の分散 | |||||
| 著者 |
Yoshii, Toshikatsu
× Yoshii, Toshikatsu |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 129972 | |||||
| 姓名 | 吉井, 敏尅 | |||||
| 著者所属 | ||||||
| 著者所属 | Earthquake Research Institute | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The models investigated here consist of a superficial or a sandwiched high-velocity layer and a lower-velocity half space medium. The idea of the so-called leaking mode plays an important role in understanding the dispersive character of these models. Approximate dispersion curves of leaking modes have been calculated for various high-velocity layer models by the present author. The results are somewhat unusual; for example, a part of the phase velocity curves for these models often shows an inverse dispersion. This feature suggests a strong resemblance to the M21 wave in a simple ""plate"" model. Model experiments were done to examine the reliability of the approximate dispersion curves. The agreement of the observed data with those curves is satisfactory. Complex roots of the period equations are also calculated for the same models. Phase velocity curves derived from real parts of them agree well with the approximate ones. Imaginary parts of the complex roots give the attenuation of the leaking modes. Attenuation coefficients observed in a model experiment were well explained by the imaginary part. The idea of the leaking mode seems to be the most easy and beautiful approach to understanding the dispersive feature of the highvelocity layer models.|表層又は中間層が半無限媒質より速いP波,S波速度を有するようなモデル(以下高速度層モデルと略称する.)を伝わる表面波の性質は,大変興味ぶかい問題である.本論文ではこの種の表面波の性質のうち,主として分散について述べる. | |||||
| 書誌情報 |
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo 巻 48, 号 5, p. 691-706, 発行日 1970-12-05 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 00408972 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AN00162258 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 453 | |||||
| 出版者 | ||||||
| 出版者 | 東京大学地震研究所 | |||||
| 出版者別名 | ||||||
| Earthquake Research Institute, University of Tokyo | ||||||
