Characterizing extreme waves around Japan

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18290
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Naval and maritime engineering
• Research Institution: The University of Tokyo
• Principal Investigator: Wada Ryota 東京大学, 大学院新領域創成科学研究科, 助教 (20724420)
• Research Collaborator: WASEDA Takuji 東京大学, 大学院新領域創成科学研究科, 教授 (30376488)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 極値統計 / 有義波高 / 台風 / 空間統計 / 海洋工学

Outline of Final Research Achievements

In this research, we develop a rational method for the estimation of extreme waves and its uncertainty, In addition, we introduce spatial extremes method to decrease the uncertainty in the estimation. Extreme waves in Japan is dominated by tropical cyclones and characterized by the small data volume and low accuracy. We utilized our original wave model and evaluate the accuracy under tropical cyclones. We apply the methods developed to our data to construct a 100 year return period map for seas around Japan. The result shows smooth spatial variation that could not be seen in previous studies.

Free Research Field

極値統計、海洋工学