| Project/Area Number |
23540518
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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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 |
MASHIKO Wataru 気象庁気象研究所, 予報研究部, 主任研究官 (30354476)
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| Co-Investigator(Kenkyū-buntansha) |
YAMAUCHI Hiroshi 気象庁気象研究所, 気象衛星・観測システム研究部, 主任研究官 (00354522)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 竜巻 / シビアストーム / 突風 / 気象学 / 自然現象・予測 / 自然災害 / 自然現象観測・予測 |
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| Research Abstract |
On 6 May 2012, a F3 tornado, which was one of the most destructive tornadoes ever in Japan, hit Tsukuba City in eastern Japan. To clarify the structure of a tornado-producing storm and mechanisms of tornadogenesis, detailed analyses were conducted using polarimetric radar data and high-resolution simulation results. The storm, which spawned the tornado, exhibited characteristics of a typical supercell storm as often observed in midwestern United States. The tornadogenesis was preceded by "Tornado Cyclone" with a diameter of about 1 km. The rear-flank downdraft associated with heavy precipitation was crucial for vorticity generation of the tornado.
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