| Project/Area Number |
23740359
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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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 |
MIZUTA Ryo 気象庁気象研究所, 気候研究部, 主任研究官 (80589862)
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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 |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 温帯低気圧 / 地球温暖化 / 大気現象 / 気候変動 / 自然災害 |
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| Research Abstract |
The projected change due to global warming in intense extratropical cyclones, which bring about disasters by heavy rainfall, snowfall, and strong wind, is investigated using 11 climate models. In the Northern Hemisphere winter, it is common to many models that the number of intense cyclones increases, and that the mean growth rate of the cyclones is enhanced on the polar side of the storm tracks, especially in the North Pacific. The upper-level zonal wind is also commonly enhanced around these regions, and highly correlated with the mean growth rate on a monthly time scale. Contributions from upper and lower levels to the cyclone growth are estimated in the western North Pacific, and the result suggests that the contribution from upper level is increasing in the future climate.
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