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Atmospheric pressure change associated with the 2003 Tokachi-Oki earthquake
https://nied-repo.bosai.go.jp/records/2842
https://nied-repo.bosai.go.jp/records/2842941ff612-406c-4424-85f5-86b94594f2f1
| Item type | researchmap(1) | |||||||||||||||||||||||
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| 公開日 | 2023-03-30 | |||||||||||||||||||||||
| タイトル | ||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| タイトル | Atmospheric pressure change associated with the 2003 Tokachi-Oki earthquake | |||||||||||||||||||||||
| 言語 | ||||||||||||||||||||||||
| 言語 | eng | |||||||||||||||||||||||
| 著者 |
Shingo Watada
× Shingo Watada
× Takashi Kunugi
× Kenji Hirata
× Hiroko Sugioka
× Kiwamu Nishida
× Shoji Sekiguchi
× Jun Oikawa
× Yoshinobu Tsuji
× Hiroo Kanamori
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| 抄録 | ||||||||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||||||||
| 内容記述 | Clear atmospheric pressure changes associated with the 2003 Tokachi-Oki, Japan, earthquake with Mw 8.3 were recorded with the microbarographs distributed in Japan. The pressure change starts at the arrival of seismic waves and reaches its maximum amplitude at the arrival of Rayleigh waves, suggesting that the observed pressure change was driven by the ground motion of seismic waves passing by the site. We computed the seismic-to-pressure transfer function (i.e., the spectral ratio of the pressure change to the vertical ground motion velocity) for periods between 10 to 50 s from the co-located barograph and seismograph records. Comparison of the observed transfer function with the theoretical one including the finite frequency and wavelength effects for a gravitationally stratified isothermal atmosphere confirms that the observed amplitude and phase of the pressure change are explained by the acoustic coupling between the atmosphere and the ground just beneath the sensors. | |||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 書誌情報 |
en : Geophysical Research Letters 巻 33, 号 24, p. 33, 発行日 2006-12-21 |
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| 出版者 | ||||||||||||||||||||||||
| 言語 | en | |||||||||||||||||||||||
| 出版者 | American Geophysical Union ({AGU}) | |||||||||||||||||||||||
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| 収録物識別子タイプ | EISSN | |||||||||||||||||||||||
| 収録物識別子 | 1944-8007 | |||||||||||||||||||||||
| DOI | ||||||||||||||||||||||||
| 関連識別子 | 10.1029/2006gl027967 | |||||||||||||||||||||||
