| Project/Area Number |
22700856
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Geography
|
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| Research Institution | Miyagi University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 前線帯 / 季節進行 / 長期傾向 / 年々変動 / 気候変動 / 日本 / Thermal Front Parameter / NCEP/NCAR再解析値 |
|---|
| Research Abstract |
The methodology for the creation of a long-term(1948-2009) frontal data set around Japan was examined. Furthermore, the seasonal march, the annual behaviors, and long-term trends of the frontal zone were revealed on the basis of the frontal data set. The main findings of this study were as follows : 1) The frontal frequencies increase around Japan during July to middle August since the 1990s. 2) The cool summer and the warm winter around Japan in the El Nino years can be explained by the behavior of the frontal zone. 3) The year-to-year variation of the clear-sky ratio in summer was strongly affected by the frontal frequencies.
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