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Dispersive tsunami of the 2010 Chile earthquake recorded by the high-sampling-rate ocean-bottom pressure gauges
https://nied-repo.bosai.go.jp/records/2852
https://nied-repo.bosai.go.jp/records/285278e16abe-6bdc-47da-a166-9f352d0961d6
| 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 | Dispersive tsunami of the 2010 Chile earthquake recorded by the high-sampling-rate ocean-bottom pressure gauges | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Tatsuhiko Saito
× Tatsuhiko Saito
× Takanori Matsuzawa
× Kazushige Obara
× Toshitaka Baba
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| 抄録 | ||||||||||||||
| 内容記述タイプ | Other | |||||||||||||
| 内容記述 | Cabled ocean-bottom pressure gauges deployed offshore Japan recorded the pressure change associated with the 2010 Chile earthquake tsunami over a wider frequency range than that of coastal tide gauges or hydrophones. Although it was difficult to recognize the dispersive features in the original records, the spectrograms clearly showed wave dispersion. A low-frequency tsunami (similar to 1 mHz) arrived after an elapsed time of 24 hr from the earthquake origin time, while a high-frequency tsunami (similar to 9 mHz) arrived after an elapsed time of 48 hr. The arrival times can be explained by assuming a constant water depth of 4 km. However, the calculated waveform does not correctly reproduce the number of wave packets appearing in the observations. Cabled ocean-bottom pressure gauges deployed offshore can record broadband tsunami signals reflecting the wide-wavenumber-range spatial spectrum for sea-bottom deformation caused by the earthquake. Citation: Saito, T., T. Matsuzawa, K. Obara, and T. Baba (2010), Dispersive tsunami of the 2010 Chile earthquake recorded by the high-sampling-rate ocean-bottom pressure gauges, Geophys. Res. Lett., 37, L23303, doi:10.1029/2010GL045290. | |||||||||||||
| 言語 | en | |||||||||||||
| 書誌情報 |
en : GEOPHYSICAL RESEARCH LETTERS 巻 37, 発行日 2010-12 |
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| 言語 | en | |||||||||||||
| 出版者 | AMER GEOPHYSICAL UNION | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 0094-8276 | |||||||||||||
| DOI | ||||||||||||||
| 関連識別子 | 10.1029/2010GL045290 | |||||||||||||
