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6. 大船渡市街に遡上した津波の数値実験
https://doi.org/10.15083/0000032967
https://doi.org/10.15083/000003296760975c1e-268a-4ca1-ac82-ff9ce193d228
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
ji0581006.pdf (790.5 kB)
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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 | 6. 大船渡市街に遡上した津波の数値実験 | |||||
| 言語 | ja | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 | 10.15083/0000032967 | |||||
| ID登録タイプ | JaLC | |||||
| その他のタイトル | ||||||
| その他のタイトル | 6. Numerical Simulation of the Tsunami Inundation in Ofunato City, Northeastern Japan | |||||
| 著者 |
相田, 勇
× 相田, 勇× 羽鳥, 徳太郎 |
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| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 128537 | |||||
| 姓名 | Aida, Isamu | |||||
| 著者別名 | ||||||
| 識別子Scheme | WEKO | |||||
| 識別子 | 128538 | |||||
| 姓名 | Hatori, Tokutaro | |||||
| 著者所属 | ||||||
| 著者所属 | 地震研究所 | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 岩手県大船渡市における津波の浸水痕跡の調査,測量の結果を模擬する数値実験を行った.津波は大船渡に最も大きな被害を与えた1960年チリ津波と,また湾口にくらべ湾奥で波高が低い特徴のある1933年三陸津波も対象とした.浅海波方程式を基礎方程式として陸上遡上を含み,leap-frog法で数値計算を行った.市街地の水流抵抗を等価摩擦係数であらわしたが,今回はf=1.0という大きな値で,市街地の浸水高の減衰が近似出来た.1933年津波は短周期であるので,浸水高の分布が局地的に著しく異る特徴をもっている. | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A detailed distributions of tsunami inundation heights in Ofunato City in Iwate Prefecture, northeastern Japan, for the 1960 Chile tsunami and the 1933 Sanriku tsunami are available. Thus, a tsunami simulation for these two cases has been carried out numerically by the finite differnce method (leap-frog method) on the basis of shallow water equations. Computational mesh sizes were decreased from the open sea to the innermost part of the bay in several steps. The movement of the water front due to inundation on dry land was taken into consideration only in the innermost part of Ofunato Bay. In the case of the 1960 Chile tsunami the incoming wave patterns at the eastern open sea boundary located about 150 km from the coast of Honshu were inferred from the obsereved tsunami records at Miyagi-Enoshima, a small island just off the main coast of northeastern Japan. A better simulation of the overall inundation height distribution for this tsunami was obtained by using a somewhat higher value of the effective friction coefficient on land area, f=1.0, than the value (f=0.5) previously used in the simulation made in Owase City, Mie Prefecture for the tsunami of 1944. For the 1933 Sanriku tsunami, a seismic fault model already published was used as the tsunami source. Simulated tsunami inundation heights agreed fairly well with the measured data in most parts of the investigated area. In this simulation, the local variation of the maximun water level was remarkable because the prevailing period of this tsunami was rather short (8 to 15 min). | |||||
| 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 58, 号 1, p. 175-185, 発行日 1983-07-28 |
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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 | ||||||
