Atmospheric dynamics with new potential-vorticity analysis
| Project/Area Number |
16K05550
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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 |
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| Research Collaborator |
Matsumura Shinji
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 気象 / 気候 / 降水システム / 地球流体力学 / 渦位 / 降水 / 気候変動 / ジェット気流 / 総観気象 / 気象学 / 大気現象 |
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| Outline of Final Research Achievements |
This study was conducted to advance the methodology to analyze meteorological data such as satellite data, objective analysis data and numerical simulation data and further to advance our understanding of weather systems by advancing potential vorticity-based analysis that we had developed. We elucidated the mechanism of upper-tropospheric driving of summertime synoptic precipitation over East Asia and the Northwestern Pacific. It was also revealed that such meteorological knowledge and methodology help explain climate projection by climate models.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究により，気象，気候の新しい診断法の有用性が示された。その成果により，降水過程をよりよく説明できるようになった。将来的には，天気予報において現在よりも正確でわかりやい説明をすることにつながると期待される。また，渦位とジェットに着目することで，気象から気候へ，シームレスな診断が可能になることが示された。それは，地球温暖化に伴う中緯度のローカルな応答を診断，説明するのに役立つため，気候予測にも資する。
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Report
(4 results)
Research Products
(10 results)
