Study of the role of transient atmospheric disturbances in the climate system over the tropics
| Project/Area Number |
25400460
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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 | Hokkaido University |
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Principal Investigator |
Horinouchi Takeshi 北海道大学, 地球環境科学研究科(研究院), 准教授 (50314266)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 大気波動 / 熱帯気象 / 総観気象 / 気候システム / 降水 / 水・エネルギー輸送 |
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| Outline of Final Research Achievements |
This study was conducted to elucidate the roles of transient atmospheric disturbances in the climate system over the tropics to subtropics. Relationship among convectively coupled mixed Rossby-gravity waves, seasonal precipitation and sea surface temperature was elucidated. It was shown that summertime synoptic-scale Rossby waves that propagate along subtropical jet modulate water-vapor transport and induce vertical motion to form precipitation belts that co-vary with the jet. The findings will be useful to evaluate climate prediction.
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Report
(4 results)
Research Products
(11 results)
