WEKO3
アイテム
Love- and Rayleigh-Wave Microseisms Excited by Migrating Ocean Swells in the North Atlantic Detected in Japan and Germany
https://nied-repo.bosai.go.jp/records/3387
https://nied-repo.bosai.go.jp/records/3387b3bc1312-dc63-46a5-83b8-62c543f56d71
| Item type | researchmap(1) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-30 | |||||||||||||||
| タイトル | ||||||||||||||||
| 言語 | en | |||||||||||||||
| タイトル | Love- and Rayleigh-Wave Microseisms Excited by Migrating Ocean Swells in the North Atlantic Detected in Japan and Germany | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| 著者 |
Takanori Matsuzawa
× Takanori Matsuzawa
× Kazushige Obara
× Takuto Maeda
× Youichi Asano
× Tatsuhiko Saito
|
|||||||||||||||
| 抄録 | ||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||
| 内容記述 | Love- and Rayleigh-wave microseisms with a dominant period of about 20 s have been clearly detected in Japan. Because their arrival direction was almost the same in any part of the Japanese islands, they are expected to have propagated as plane waves from a very distant source. We estimated the source area of the microseisms by multiple array analysis of data from the Hi-net, high-sensitivity accelerometers in Japan and the broadband seismic array at Grafenberg, Germany. The source was distributed to be in the North Atlantic and migrated from north of the British Isles to the Norwegian Sea in a period of one day. This migration coincided with the propagation of ocean swells. Our results indicate that ocean swells in the North Atlantic can be a major source of seismic noise with a period of 20 s in Japan. Our analysis also suggests that the source areas of the Love and Rayleigh waves were different. It is hoped that such observations will be helpful in understanding the excitation mechanisms of microseisms. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 書誌情報 |
en : BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 巻 102, 号 4, p. 1864-1871, 発行日 2012-08 |
|||||||||||||||
| 出版者 | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 出版者 | SEISMOLOGICAL SOC AMER | |||||||||||||||
| ISSN | ||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||
| 収録物識別子 | 0037-1106 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連識別子 | 10.1785/0120110269 | |||||||||||||||
