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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| s40623-023-01775-x.pdf | 4.2 MB | Adobe PDF | 見る/開く |
| タイトル: | Ocean gravity waves generated by the meteotsunami at the Japan Trench following the 2022 Tonga volcanic eruption |
| 著者: | Ho, Tung-Cheng Mori, Nobuhito    https://orcid.org/0000-0001-9082-3235 (unconfirmed)Yamada, Masumi |
| 著者名の別形: | 森, 信人 山田, 真澄 |
| キーワード: | Tonga Tsunami S-net Pressure wave Meteotsunami Wave split Wave separation Volcano Wave deformation Gravity wave |
| 発行日: | 2023 |
| 出版者: | Springer Nature |
| 誌名: | Earth, Planets and Space |
| 巻: | 75 |
| 論文番号: | 25 |
| 抄録: | The 2022 eruption of the Hunga Tonga-Hunga Ha'apai volcano excited an atmospheric Lamb wave, which induced a fast-traveling tsunami. This tsunami was driven by the pressure-forced wave traveling at the speed of the Lamb wave and, thus, was much faster than conventional tsunamis. This was the first case in which ocean bottom monitoring systems widely observed an air pressure-induced tsunami. We found that the pressure-forced waves split and generated ocean gravity waves after passing the Japan Trench based on the S-net data. Our simulations show that changes in water depth can amplify or decrease the pressure-forced wave. Simultaneously, an ocean gravity wave is generated due to the conservation of water volume. Because the ocean gravity wave was slower than the pressure-forced wave near Japan, it was separated from, and traveled behind, the pressure-forced wave. We explained the wave separation phenomenon and reproduced the waveforms of different splitting stages observed by the stations near the Japan Trench. |
| 著作権等: | © The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. |
| URI: | http://hdl.handle.net/2433/283111 |
| DOI(出版社版): | 10.1186/s40623-023-01775-x |
| 出現コレクション: | 学術雑誌掲載論文等 |
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