第101回統計地震学セミナー / The 101st Statistical Seismology Seminar
- 【Date＆Time】
- 26 June 2025 13:45-
Admission Free, No Booking Necessary
- 【Place】
- online (with zoom) and 4F Lounge (ISM)
- Zoom meeting:
https://us06web.zoom.us/j/89279607250?pwd=ms1dqC7KLBIPNihR0LUTGoVIACcjnL.1
Meeting ID: 892 7960 7250
Passcode: 966382
- 【Speaker】
- Dr. Wang, Yuchen
(Japan Agency for Marine-Earth Science and Technology (JAMSTEC) ・ Researcher)
- 【Title】
- Tsunami Early Warning Using Offshore Observations
- 【Abstract】
- Tsunami early earning based on data assimilation has become feasible now with the deployment of offshore observation networks. This method directly uses offshore tsunami observations to reconstruct the tsunami wavefield and predict coastal tsunamis. Offshore observations can be provided by offshore bottom pressure gauges (OBPGs) or high-frequency (HF) radars. Unlike traditional early warning methods, data assimilation does not require source information. Therefore, in regions where observation networks are deployed, it can be applied to tsunamis from any source, as long as the tsunami signals are detected. In this talk, I will introduce the successful applications of tsunami data assimilation, including the 2022 Tonga volcanic tsunami and the 2023 Torishima tsunam. As offshore observation systems continue to be developed, this method will play an increasingly significant role in tsunami disaster prevention.
