Idealized experiments on diversity of cyclones using a high-resolution regional model.

2014 Fiscal Year Final Research Report

• Project/Area Number: 23740349
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: The University of Tokyo
• Principal Investigator: YANASE Wataru 東京大学, 大気海洋研究所, 助教 (80376540)
• Project Period (FY): 2011-04-28 – 2015-03-31
• Keywords: 低気圧 / 高解像モデル / 理想化実験 / 環境場 / 熱帯低気圧 / 温帯低気圧 / ハイブリッド低気圧 / ポーラーロウ

Outline of Final Research Achievements

Satellite imagery and weather charts show various types of cyclones over the globe, including tropical cyclones, extratropical cyclones and hybrid type of cyclones. To clarify the diversity of cyclones, we analyzed the global distribution of various types of cyclones, and then performed idealized experiments on the relationship between cyclone development and their environment using a high-resolution regional model. We have demonstrated that environmental fields can explain the cyclone development and characteristics well. We have also clarified that the subtropics is an unfavorable environment for both tropical cyclones and extratropical cyclones, and that the western parts of the oceans are favorable environments for hybrid cyclones.

Free Research Field

気象学