2013 Fiscal Year Final Research Report

Development of adaptive observation strategies for improving tropical cyclone forecasts

Research Project

Project/Area Number	24840045
Research Category	Grant-in-Aid for Research Activity Start-up
Allocation Type	Single-year Grants
Research Field	Meteorology/Physical oceanography/Hydrology
Research Institution	Japan, Meteorological Research Institute
Principal Investigator	KUNII Masaru 気象庁気象研究所, 予報研究部, 研究官 (70370327)
Project Period (FY)	2012-08-31 – 2014-03-31
Keywords	データ同化 / アンサンブルカルマンフィルタ / 台風 / 観測インパクト / 適応観測
Research Abstract	The observation sensitivity estimation based on an ensemble data assimilation method was applied to tropical cyclone cases, and impacts of special soundings deployed around tropical cyclones were quantitatively evaluated. Based on the estimated observation impacts, an adaptive observation strategies for tropical cyclones were derived by a statistical approach. The results showed that observations at low and middle levels had larger positive impacts for improving tropical cyclone forecasts.

(3 results)