掲載雑誌（和）： - Vol： 33-2巻 年： 1990年 頁： 173-193頁 著者（和）： - タイトル（和）： - 抄録（和）：
- キーワード（和）： - 掲載雑誌（英）： COASTAL ENGINEERING IN JAPAN 著者（英）： Nobuo SHUTO, Chiaki GOTO, Fumihiko IMAMURA タイトル（英）： NUMERICAL SIMULATION AS A MEANS OF WARNING FOR NEAR-FIELD TSUNAMIS 抄録（英）：
The feasibility of quantitatively forecasting a near-field tsunami prior to its arrival is examined, provided that the initial tsunami profile can be determined from fault parameters calculated using a method similar to that of Izutani and Hirasawa. Examination of basic equations, boundary conditions and grid lengths has led to the conclusion that the following combination is the best to perform rapid, accurate, and detailed numerical forecasting; the linear long wave theory discretized with the staggered leap-frog scheme, perfect reflection at the land boundary, and a grid length varying from 5.4 km out at deep sea to 0.2 km at the shoreline. With the aid of super computer, tsunami heights along every 200 m of Japan's Sanriku coast (250 km long) can be obtained within 7 minuets after the occurrence of an earthquake. This method gives enough time for warning transmission and for evacuation of residents because the standard arrival time of tsunamis in this district is 25 to 30 minuets. キーワード（英）： - 記事区分： - 区分 　　　委員会論文集