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Frequency Analysis of Seismic Waves (2)
https://doi.org/10.15083/0000033470
https://doi.org/10.15083/000003347047c511c6-a8a1-4599-8d05-f96b7cea3297
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0454003.pdf (1.3 MB)
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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 | Frequency Analysis of Seismic Waves (2) | |||||
| 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 | 10.15083/0000033470 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | 地震波動の周波数分析(2) | |||||
| 著者 |
Tsujiura, Masaru
× Tsujiura, Masaru |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 130727 | |||||
| 姓名 | 辻浦, 賢 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A seismic analyzing system of analogue type is constructed for the study of teleseismic signals which are recorded by magnetic tape recorders. The system is useful for 1) increasing the detectability of arriving seismic signals, 2) detecting mantle surface waves and measuring their arrival times, and 3) obtaining the frequency spectra of body waves of distant earthquakes. The results of the analysis of the data obtained by the observations since April, 1966 can be summarized as follows. 1) High-pass and band-pass filterings are useful for detecting weak teleseismic P wave signals. 2) The low-pass filtering is also useful for detecting long-period mantle surface waves masked by short-period crustal surface waves and interfering waves, etc.. The arrival time of the surface waves can be measured by the use of the double filtering method. 3) The output signals of the multi-channel band-pass filters give the amplitude spectra of seismic waves, from which the relation between the predominant period of P waves and magnitude, and also the relation between the predominant period and focal depth for a certain magnitude range are obtained. | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | High-pass, Low-pass, Band-pass等3組のAnalog filterをもちい, Magnetic tapeにためこまれた地震記象の周波数分析をおこなった. 1966年4月以後,筑波,堂平,清澄等各地震観測所に設置中の無線地震計をつかい, Magnetic tapeに集中録音されたDataから遠地地震実体波並びに表面波について解析をおこなった.主な結果は次の通りである. | |||||
| 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 45, 号 4, p. 973-995, 発行日 1968-02-10 |
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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 | ||||||
