Numerical study of rainbands associated with extra-tropical cyclones using fine-mesh cloud resolving model
| Project/Area Number |
21540446
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Meteorology/Physical oceanography/Hydrology
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| Research Institution | Hokkaido University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 温帯低気圧 / 前線 / 雲解像モデル / 気象学 |
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| Research Abstract |
The structure and formation mechanism of rainbands associated with extra-tropical cyclones were investigated through a series of numerical experiments using fine-mesh cloud resolving models. Idealized simulations of narrow cold frontal rainbands revealed that the development of core-gap structure of the rainbands due to horizontal shear instability depends strongly on the environmental and local vertical shear. Realistic numerical simulations revealed the formation mechanisms of other types of rainbands.
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Report
(4 results)
Research Products
(3 results)
