Single particle analysis of light absorbing organic aerosols
| Project/Area Number |
16K16188
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | Japan, Meteorological Research Institute |
|---|
Principal Investigator |
Adachi Kouji 気象庁気象研究所, 全球大気海洋研究部, 主任研究官 (90630814)
|
|---|
| Project Period (FY) |
2016-04-01 – 2020-03-31
|
| Project Status |
Completed (Fiscal Year 2019)
|
| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
|---|
| Keywords | 森林火災 / 電子顕微鏡 / ターボール / エアロゾル / 気候変動 / 気候影響 / 有機エアロゾル / 光吸収性エアロゾル / バイオマス燃焼 / 地球気候 / 光学特性 / 物理化学特性 |
|---|
| Outline of Final Research Achievements |
In this study, we found that a part of organic aerosol particles from biomass burning (tarball) do not volatilize even at 600°C (Adachi et al., 2018, AST). The abundance of tarballs were estimated as 30-40% of the total aerosol mass in a biomass plume and their refractive index is 1.56-0.02i, respectively, by comparing with black carbon particles (Sedlacek et al., 2018, ACP). We proposed a new mechanism for the formation of tarballs, i.e., organic matter becomes more viscous in smoke over time due to the reaction with nitrogen and oxygen (Adachi et al., 2019, PNAS).
|
| Academic Significance and Societal Importance of the Research Achievements |
本研究では、森林火災から多量に放出される有機エアロゾル粒子（ターボール）に関して、その物理化学特性、光学特性、また生成メカニズムを明らかにした。ターボール粒子は顕微鏡分析以外では分析が困難であり、地球温暖化に大いに関わると考えられている森林火災から生じるエアロゾルの多くを占めるとされている。その詳細な特性を明らかにした点において、学術的意義がある。この成果によって、今後森林火災からのエアロゾル解析の精度やその地球温暖化への寄与がより詳細に理解されることが期待され、社会的にも重要な意義がある。
|
Report
(5 results)
Research Products
(37 results)
-
-
-
-
[Journal Article] A comprehensive characterization of ice nucleation by three different types of cellulose particles immersed in water2019
Author(s)
Hiranuma, N., Adachi, K., Bell, D. M., Belosi, F., Beydoun, H., Bhaduri, B., Bingemer, H., Budke, C., Clemen, H.-C., Conen, F. et al.
-
Journal Title
Atmospheric Chemistry and Physics
Volume: 19
Issue: 7
Pages: 4823-4849
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
-
-
-
-
-
-
-
-
[Journal Article] Volume changes upon heating of aerosol particles from biomass burning using transmission electron microscopy2018
Author(s)
Adachi, K., Sedlacek, A. J., Kleinman, L., Chand, D., Hubbe, J. M., Buseck, P. R.
-
Journal Title
Aerosol Science and Technology
Volume: 52
Issue: 1
Pages: 46-56
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
-
-
[Journal Article] The Green Ocean Amazon Experiment (GoAmazon2014/5) Observes Pollution Affecting Gases, Aerosols, Clouds, and Rainfall over the Rain Forest2017
Author(s)
S. Martin, P. Artaxo, L. Machado, A. Manzi, R. Souza, C. Schumacher, J. Wang, T. Biscaro, J. Brito, A. Calheiros, K. Jardine, A. Medeiros, B. Portela, S. de Sa;, K. Adachi, et al
-
Journal Title
Bulletin of the American Meteorological Society
Volume: 98
Issue: 5
Pages: 981-997
DOI
Related Report
Peer Reviewed / Int'l Joint Research
-
-
[Journal Article] Anthropogenic influences on the physical state of submicron particulate matter over a tropical forest2016
Author(s)
Bateman, A. P., Gong, Z., Harder, T. H., de Sa, S. S., Wang, B., Castillo, P., China, S., Liu, Y., O'Brien, R. E., Palm, B. B., Shiu, H.-W., Cirino, G. G., Thalman, R., Adachi, K., et al.
-
Journal Title
Atmospheric Chemistry and Physics
Volume: 17
Issue: 3
Pages: 1759-1773
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
-
-
-
-
[Presentation] 空に浮かぶ小さな金属粒子2018
Author(s)
足立光司, 梶野瑞王, 財前祐二, 木名瀬健, 五十嵐康人, 大畑昌輝, チョン千香子, 藤谷雄二, 古山 昭子, 高見昭憲, 吉野彩子, 萩野浩之, 林政彦, 原圭一郎
Organizer
第35回エアロゾル科学・技術研究討論会
Related Report
-
-
-
-
-
-
-
-
-
-
-
