2012 Fiscal Year Final Research Report
A study on spatial distribution of aerosol number concentration and its variability over East Asia
| Project/Area Number |
22241002
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | The University of Tokyo |
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Principal Investigator |
TAKEGAWA Nobuyuki 東京大学, 先端科学技術研究センター, 准教授 (00324369)
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| Co-Investigator(Kenkyū-buntansha) |
MOTEKI Nobuhiro 東京大学, 先端科学技術研究センター, 助教 (20507818)
KOIKE Makoto 東京大学, 大学院・理学系研究科, 准教授 (00225343)
TAKAMI Akinori 独立行政法人国立環境研究所, 地域環境 研究センター, 室長 (00262030)
SAKURAI Hiromu 独立行政法人産業技術総合研究所, 計測標準研究部門, 研究員 (50392618)
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| Co-Investigator(Renkei-kenkyūsha) |
KONDO Yutaka 東京大学, 大学院・理学系研究科, 教授 (20110752)
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| Project Period (FY) |
2010 – 2012
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| Keywords | エアロゾル / 数濃度 / 間接効果 / 東アジア / 航空機観測 |
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| Research Abstract |
Aerosol particles act as cloud condensation nuclei and significantly affect the radiative balance of the atmosphere (indirect effect). Aerosol indirect effect is a major source of uncertainty in the projection of climate change. We need to quantify key factors affecting the distributions of aerosol number concentrations for better understanding of indirect effect. We have developed an airborne system for the fast measurement of aerosol number concentrations. We have conducted aircraft measurements over East Asia and revealed the vertical profiles of aerosol number concentrations. A three-dimensional model analysis has suggested the importance of new particle formation in determining the number concentrations in spring.
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[Journal Article] Measurements of regional-scale aerosol impacts on cloud microphysics over the East China Sea: Possible influences of warm sea surface temperature over the Kuroshio ocean current2012
Author(s)
Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
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Journal Title
J. Geophys. Res
Volume: 117
Pages: D17205
DOI
Peer Reviewed
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[Journal Article] Wet removal of black carbon in Asian outflow: Aerosol Radiative Forcing in East Asia (A-FORCE) aircraft campaign2012
Author(s)
Oshima, N., Y. Kondo, N. Moteki, N.Takegawa, M. Koike, K. Kita, H. Matsui, M. Kajino, H. Nakamura, J.S. Jung, and Y. J. Kim
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Journal Title
J. Geophys
Volume: 117
Pages: D03204
DOI
Peer Reviewed
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[Presentation] Observations of Regional-Scale Impacts on Cloud Microphysics from AnthropogenicAerosols and Warm Sea SurfaceTemperature over the East China Sea12th IGAC Conference2012
Author(s)
Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
Place of Presentation
Beijing, China
Year and Date
20120917-0921
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[Presentation] Measurements of Regional-Scale Aerosol Impacts on Cloud Microphysics over the East China Sea: Possible Influences of Warm Sea Surface Temperature over the Kuroshio Ocean Current2012
Author(s)
Koike, M., N. Takegawa, N. Moteki, Y.Kondo, H. Nakamura, K. Kita, H. Matsui, N. Oshima, M. Kajino, and T. Y. Nakajima
Organizer
16th International Conference on Clouds and Precipitation, Leipzig
Place of Presentation
Germany
Year and Date
2012-08-01
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