| Project/Area Number |
15K16121
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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 |
Environmental dynamic analysis
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| Research Institution | Japan, Meteorological Research Institute |
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Principal Investigator |
Kajino Mizuo 気象庁気象研究所, 環境・応用気象研究部, 主任研究官 (00447939)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | エアロゾル / 化学輸送モデル / 湿性除去 / Rainout/washout比 / エアロゾル・雲相互作用 / ラージエディシミュレーション |
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| Outline of Final Research Achievements |
Wet deposition process determines the deposition amounts of atmospheric aerosols and the abundance in the air. Wet deposition consists of the two distinct processes: in-cloud scavenging acting as cloud condensation nuclei (rainout) and coalescence by settling hydrometeors (washout), but the two processes has not been separately evaluated by conventional observations. In this study, continuous observations of physical and chemical properties of precipitation and aerosols have been done at Meteorological Research Institute (Tsukuba city) and the rainout/washout contributions were quantitatively evaluated. The washout contribution of sulfur oxides was estimated as 20%, which are significantly lower than the previous studies (approximately 50%, both for observations and simulations).
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