2013 Fiscal Year Final Research Report
Development of adaptive observation strategies for improving tropical cyclone forecasts
| Project/Area Number |
24840045
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
KUNII Masaru 気象庁気象研究所, 予報研究部, 研究官 (70370327)
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| 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 |
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| 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.
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