Studies on physical-chemical processes of aerosol-cloud interaction

• Project/Area Number: 17201003
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: The University of Tokyo
• Principal Investigator: KONDO Yutaka The University of Tokyo, Research Center for Advanced Science and Technology, Professor, 先端科学技術研究センター, 教授 (20110752)
• Co-Investigator(Kenkyū-buntansha): TAKEGAWA Nobuyuki The University of Tokyo, Research Center for Advanced Science and Technology, Associate Professor, 先端科学技術研究センター, 助教授 (00324369) ; MIYAZAKI Yuzo The University of Tokyo, Research Center for Advanced Science and Technology, Research Associate, 先端科学技術研究センター, 助手 (60376655) ; KOIKE Makoto The University of Tokyo, School of Science, Associate Professor, 大学院理学系研究科, 助教授 (00225343) ; 駒崎 雄一 東京大学, 先端科学技術研究センター, 科学技術振興特任教員(特任助教授) (80286640)
• Project Period (FY): 2005 – 2006
• Project Status: Completed (Fiscal Year 2006)
• Budget Amount: ¥51,090,000 (Direct Cost: ¥39,300,000、Indirect Cost: ¥11,790,000); Fiscal Year 2006: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000); Fiscal Year 2005: ¥33,280,000 (Direct Cost: ¥25,600,000、Indirect Cost: ¥7,680,000)
• Keywords: aerosol / black carbon / mixing state / CCN / cloud / indirect effect / climate changel

Research Abstract

Cloud condensation nuclei (CCN) activity is determined by aerosol diameter, fraction of water soluble components, and surface tension. We quantified CCN activities as a function of these parameters and related them with cloud formation processes.
A)Controlling factors of CCN activities of aerosol in urban air
We measured chemical composition, mixing states, and CCN activity of aerosol in Tokyo using an aerosol mass spectrometer, black carbon (BC) instruments, and a CCN counter. We found that CCN activity of thickly coated BC is controlled by the chemical composition of water soluble compounds. The CCN activity of thinly coated BC is controlled by the thickness of the coating.
B)Measurements of aerosol-cloud interaction
We conducted aircraft measurements of aerosol and cloud particles inside and outside of clouds located at 1-2 km near Japan in spring. We showed that thickly coated BC particles were taken up into clouds efficiently, consistent with the ground based measurements. This also s hows that BC can be a good tracer to quantitatively study aerosol-cloud interaction.
C)Time constant of CCN formation
We showed that CCN activity of aerosol transported from the Asian continent within a few days is controlled mainly by the fraction of water soluble components from the data obtained in Jeju Island, Korea. Decrease in the surface tension of organic aerosol is also estimated to is contribute to the CCN activity. The CCN activity of various types of aerosol was measured also near Beijing. The observed CCN activity is consistent with the understandings obtained in Tokyo and Jeju Is.
D)Calibration of the cloud probe and its aerodynamical characteristics
Light scattering cloud probe was calibrated using standard particles with high precision. We made aerodynamical calculations of airflows around the probe mounted on the aircraft and found high collection efficiency of cloud droplets.
E)We calculated size distribution of cloud droplets predicted from various CCN concentrations using a trajectory model. Sensitivity of CCN-cloud interaction was estimated by the numerical experiments.

Research Products

• [Journal Article] Intercomparison of two different thermal-optical elemental carbons and optical black carbon during ABC-EAREX2005 (2007)
  • Author(s): Bae, M.-S., C.-S.Hong, Y.J.Kom, J.-S.Han, K.-J.Moon, Y.Kondo, Y.Komazaki, Y.Miyazaki
  • Journal Title: Atmos. Env. 41 Pages: 2791-2803
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Oxygenated and water-soluble organic aerosols in Tokyo (2007)
  • Author(s): Kondo, Y., Y.Miyazaki, N.Takegawa, T.Miyakawa, R.J.Weber, J.L.Jimenez, Q.Zhang, D.R.Worsnop
  • Journal Title: J. Geophys. Res. 112
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Effects of mixing state on black carbon measurements by Laser-Induced Incandescence (2007)
  • Author(s): Moteki, N., Y.Kondo
  • Journal Title: Aerosol Sci. Technol. 41 Pages: 398-417
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Contribution of Selected Dicarboxylic and ω-oxocarboxylic acids in ambient aerosol to the m/z 44 signal of an Aerodyne aerosol mass spectrometer (2007)
  • Author(s): Takegawa, N, T.Miyakawa, K.Kawamura, Y.Kondo
  • Journal Title: Aerosol Sci. Technol. 41 Pages: 418-437
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Cloud condensation nuclei (CCN) activity of non-volatile particles in Tokyo (2007)
  • Author(s): Kuwata, M., Y.Kondo, M.Mochida, N.Takegawa, K.Kawamurra
  • Journal Title: J. Geophys. Res.
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Removal of sulfur dioxide and formation of sulfate aerosol in Tokyo (2007)
  • Author(s): Miyakawa, T., N.Takegawa, Y.Kondo
  • Journal Title: J. Geophys. Res. (In press)
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Evolution of mixing state of black carbon particles : Aircraft measurements over the western Pacific in March 2004 (2007)
  • Author(s): Moteki, N., Y.Kondo, Y.Miyazaki, N.Takegawa, Y.Komazaki, G.Kurata, T.Shirai, D.R.Blake, T.Miyakawa, M.Koike
  • Journal Title: Geophys. Res., Lett. (In press)
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Intercomparison of two different thermal-optical elemental carbons and optical black carbon during ABC-EAREX2005 (2007)
  • Author(s): Bae, M.-S., C.-S.Hong, Y.J.Kom, J.-S.Han, K.-J.Moon, Y.Kondo, Y.Komazaki, Y.Miyazaki
  • Journal Title: Atmos.Env. 41 Pages: 2791-2803
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Oxygenated and water-soluble organic aerosols in Tokyo (2007)
  • Author(s): Kondo, Y., Y.Miyazaki, N.Takegawa, T.Miyakawa, R.J.Weber, J.L.Jimenez, Q.Zhang, D.R.Worsnop
  • Journal Title: J.Geophys.Res. 112, D01203
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Effects of mixing state on black carbon measurements by Laser-Induced Incandescence (2007)
  • Author(s): Moteki, N.Y.Kondo
  • Journal Title: Aerosol Sci.Technol. 41 Pages: 398-417
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Contribution of Selected Dicarboxylic and ω-oxocarboxylic acids in ambient aerosol to the m/z 44 signal of an Aerodyne aerosol mass spectrometer (2007)
  • Author(s): Takegawa, N, T.Miyakawa, K.Kawamura, Y.Kondo
  • Journal Title: Aerosol Sci.Technol. 41 Pages: 418-437
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Cloud condensation nuclei (CCN) activity of non-volatile particles in Tokyo (2007)
  • Author(s): Kuwata, M., Y.Kondo, M.Mochida, N.Takegawa, K.Kawamurra
  • Journal Title: J.Geophys.Res.
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Removal of sulfur dioxide and formation of sulfate aerosol in Tokyo (2007)
  • Author(s): Miyakawa, T., N.Takegawa, Y.Kondo
  • Journal Title: J.Geophys.Res. (in press)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Evolution of mixing state of black carbon particles : Aircraft measurements over the western Pacific in March 2004 (2007)
  • Author(s): Moteki, N., Y.Kondo, Y.Miyazaki, N.Takegawa, Y.Komazaki, G.Kurata, T.Shirai, D.R.Blake, T.Miyakawa, M.Koike
  • Journal Title: Geophys.Res. (in press)
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] 3.1.1Tisso-sannkabutsu (2007)
  • Author(s): Y, Kondo, et al.
  • Journal Title: Jikken Kagakukouza, Kankyou-kagaku, The fifth edition, Maruzen 519
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Intercomparison of two different thermal-optical elemental carbons and optical black carbon during ABC-EAREX2005 (2007)
  • Author(s): Bae, M.-S., C, -S.Hong, Y.J.Kom, J.-S.Han, K.-J.Moon, Y.Kondo, Y.Komazaki, Y.Miyazaki
  • Journal Title: Atmos,Env. 41 Pages: 2791-2803
• [Journal Article] Oxygenated and water-soluble organic aerosols in Tokyo (2007)
  • Author(s): Kondo, Y., Y.Miyazaki, N.Takegawa, T.Miyakawa, R.J.Weber, J.L.Jimenez, Q.Zhang, D.R.Worsnop
  • Journal Title: J.Geophys.Res 112
• [Journal Article] Effects of mixing state on black carbon measurements by Laser-Induced Incandescence (2007)
  • Author(s): Moteki, N., Y.Kondo
  • Journal Title: Aerosol Sci.Technol. 41 Pages: 398-417
• [Journal Article] Contribution of Selected Dicarboxylic and ω-oxocarboxylic acids in ambient aerosol to the m/z 44 signal of an Aerodyne aerosol mass spectrometer (2007)
  • Author(s): Takegawa, N., T.Miyakawa, K.Kawamura, Y.Kondo
  • Journal Title: Aerosol Sci.Technol. (In press)
• [Journal Article] Cloud condensation nuclei(CCN) activity of non-volatile particles in Tokyo (2007)
  • Author(s): Kuwata, M., Y.Kondo, M.Mochida, N.Takegawa, K.Kawamurra
  • Journal Title: J.Geophys.Res (In press)
• [Journal Article] Removal of sulfur dioxide and formation of sulfate aerosol in Tokyo (2007)
  • Author(s): Miyakawa, T., N.Takegawa, Y.Kondo
  • Journal Title: J.Geophys.Res (In press)
• [Journal Article] Evolution of mixing state of black carbon particles : Aircraft measurements over the western Pacific in March 2004 (2007)
  • Author(s): Moteki, N., Y.Kondo, Y.Miyazaki, N.Takegawa, Y.Komazaki, G.Kurata, T.Shirai, D.R.Blake, T.Miyakawa, M.Koike
  • Journal Title: Geophys.Res.,Lett. (In press)
• [Journal Article] Temporal variations of elemental carbon in Tokyo (2006)
  • Author(s): Kondo, Y., Y.Komazaki, Y.Miyazaki, N.Moteki, N.Takegawa, M.Nogami, S.Deguchi, M.Fukuda, T.Miyakawa, Y.Morino, D.Kodama, M.Koike
  • Journal Title: J. Geophys. Res. 111
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Seasonal and diurnal variations of submicron organic aerosol in Tokyo observed using the Aerodyne Aerosol Mass Spectrometer (2006)
  • Author(s): Takegawa, N., T.Miyakawa, Y.Kondo, J.L.Jimenez, D.R.Worsnop, M.Fukuda
  • Journal Title: J. Geophys. Res. 111
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] A chemical ionization mass spectrometer for ground-based measurement of nitric acid (2006)
  • Author(s): Kita, K., Y.Morino, Y.Kondo, Y.Komazaki, N.Takegawa, J.Hirokawa, T.L.Thompson, R.-S.Gao, D.W.Fahey
  • Journal Title: J. Atmos. Ocean. Tech. 23 Pages: 1104-1113
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Evolution of submicron organic aerosol in polluted air exported from Tokyo (2006)
  • Author(s): Takegawa, N., T.Miyakawa, Y.Kondo, D.R.Blake, Y.Kanaya, M.Koike, M.Fukuda, Y.Komazaki, Y.Miyazaki, A.Shimono, T.Takeuchi
  • Journal Title: Geophys. Res. Lett. 33
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Partitioning of HNO_3 and particulate nitrate over Tokyo : Effect of vertical mixing. (2006)
  • Author(s): Morino, Y., Y.Kondo, N.Takegawa, Y.Miyazaki, K.Kita, Y.Komazaki, M.Fukuda, T.Miyakawa, N.Moteki, D.R.Worsnop
  • Journal Title: J. Geophys. Res 111
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo (2006)
  • Author(s): Mochida M., M.Kuwata, T.Miyakawa, N.Takegawa, K.Kawamura, Y.Kondo
  • Journal Title: J. Geophys. Res 111
  • NAID: 120000973532
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Time-resolved measurements of water-soluble organic carbon in Tokyo (2006)
  • Author(s): Miyazaki, Y., Y.Kondo, N.Takegawa, Y.Komazaki, M.Fukuda, K.Kawamura, M.Mochida, K.Okuzawa, R.J.Weber
  • Journal Title: J. Geophys. Res. 111
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] 都市域における炭素性エアロゾル生成過程 (2006)
  • Author(s): 近藤豊, 竹川暢之, 宮崎雄三, 駒崎雄一, 小池真
  • Journal Title: エアロゾル研究 21 (4) Pages: 287-296
  • NAID: 10018792292
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Temporal variations of elemental carbon in Tokyo (2006)
  • Author(s): Kondo, Y., Y.Komazaki, Y.Miyazaki, N.Moteki, N.Takegawa, M.Nogami, S.Deguchi, M.Fukuda, T.Miyakawa, Y.Morino, D.Kodama, M.Koike
  • Journal Title: J.Geophys.Res. 111, D12205
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Seasonal and diurnal variations of submicron organic aerosol in Tokyo observed using the Aerodyne Aerosol Mass Spectrometer (2006)
  • Author(s): Takegawa, N., T.Miyakawa, Y.Kondo, J.L.Jimenez, D.R.Worsnop, M.Fukuda
  • Journal Title: J.Geophys. Res. 111, D12206
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] A chemical ionization mass spectrometer for ground-based measurement of nitric acid (2006)
  • Author(s): Kita, K., Y.Morino, Y.Kondo, Y.Komazaki, N.Takegawa, J.Hirokawa, T.L.Thompson, R.-S.Gao, D.W.Fahey
  • Journal Title: J.Atmos.Ocean.Tech. 23 Pages: 1104-1113
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Evolution of submicron organic aerosol in polluted air exported from Tokyo (2006)
  • Author(s): Takegawa, N., T.Miyakawa, Y.Kondo, D.R.Blake, Y.Kanaya, M.Koike, M.Fukuda, Y.Komazaki, Y.Miyazaki, A.Shimono, T.Takeuchi
  • Journal Title: Geophys.Res. 33, L15814
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Partitioning of HNO_3 and particulate nitrate over Tokyo : Effect of vertical mixing (2006)
  • Author(s): Morino, Y., Y.Kondo, N.Takegawa, Y.Miyazaki, K.Kita, Y.Komazaki, M.Fukuda, T.Miyakawa, N.Moteki, D.R.Worsnop
  • Journal Title: J.Geophys.Res. 111, D15215
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo (2006)
  • Author(s): Mochida, M., M.Kuwata, T.Miyakawa, N.Takegawa, K.Kawamura, Y.Kondo
  • Journal Title: J.Geophys.Res. 111, D23204
  • NAID: 120000973532
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Time-resolved measurements of water-soluble organic carbon in Tokyo (2006)
  • Author(s): Miyazaki, Y., Y.Kondo, N.Takegawa, Y.Komazaki, M.Fukuda, K.Kawamura, M.Mochida, K.Okuzawa, R.J.Weber
  • Journal Title: J.Geophys.Res. 111, D23206
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Formation Processes of Carbonaceous Aerosols in Urban Air (2006)
  • Author(s): Kondo, Y., Takegawa, N., Miyazaki, Y., Komazaki, Y., Koike, M
  • Journal Title: Earozoru Kenkyu (Japan Association of Aerosol Science and Technology) 21(4) Pages: 287-296
  • NAID: 10018792292
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Evolution of submicron organic aerosol in polluted air exported from Tokyo (2006)
  • Author(s): Takegawa, N., T.Miyakawa, Y.Kondo, D.R.Blake, Y.Kanaya, M.Koike, M.Fukuda, Y.Komazaki, Y.Miyazaki, A.Shimono, T.Takeuchi
  • Journal Title: Geophys.Res.Lett. 33
• [Journal Article] Partitioning of HNO_3 and particulate nitrate over Tokyo : Effect of vertical mixing. (2006)
  • Author(s): Morino, Y., Y.Kondo, N.Takegawa, Y.Miyazaki, K.Kita, Y.Komazaki, M.Fukuda, T.Miyakawa, N.Moteki, D.R.Worsnop
  • Journal Title: J.Geophys.Res 111
• [Journal Article] Relationship between hygroscopicity and cloud condensation nuclei activity for urban aerosols in Tokyo (2006)
  • Author(s): Mochida M., M.Kuwata, T.Miyakawa, N.Takegawa, K.Kawamura, Y.Kondo
  • Journal Title: J.Geophys.Res 111
  • NAID: 120000973532
• [Journal Article] Time-resolved measurements of water-soluble organic carbon in Tokyo (2006)
  • Author(s): Miyazaki, Y., Y.Kondo, N.Takegawa, Y.Komazaki, M.Fukuda, K.Kawamura, M.Mochida, K.Okuzawa, R.J.Weber
  • Journal Title: J.Geophys.Res 111
• [Journal Article] 都市域における炭素性エアロゾル生成過程 (2006)
  • Author(s): 近藤豊, 竹川暢之, 宮崎雄三, 駒崎雄一, 小池真
  • Journal Title: エアロゾル研究
  • NAID: 10018792292
• [Journal Article] Partitioning of HNO_3 and particulate nitrate over Tokyo : Effect of vertical mixing (2006)
  • Author(s): Y.Morino, Y.Kondo 他
  • Journal Title: Journal of Geophysical Research 111(印刷中)
• [Journal Article] Seasonal variation of carbon monoxide in northern Japan : ETIR measurements and source-labeled model calculations (2006)
  • Author(s): N.Takegawa, Y.Kondo 他
  • Journal Title: Journal of Geophysical Research 111(印刷中)
• [Journal Article] Temporal variations of elemental carbon in Tokyo (2006)
  • Author(s): Y.Kondo 他
  • Journal Title: Journal of Geophysical Research 111(印刷中)
• [Journal Article] A chemical ionization mass spectrometer for ground-based measurement of nitric acid (2006)
  • Author(s): K.Kita, Y.Kondo 他
  • Journal Title: J.Ocean.Atmos.Tech. (印刷中)
• [Journal Article] Contribution of particulate nitrate to airborne measurements of total reactive nitrogen (2005)
  • Author(s): Y.Miyazaki, Y.Kondo 他
  • Journal Title: Journal of Geophysical Research 110
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Characterization of an Aerodyne Aerosol Mass Spectrometer (AMS) : Intercomparison with other aerosol instruments (2005)
  • Author(s): N.Takegawa, Y.Kondo 他
  • Journal Title: Aerosol Science and Technology 39 Pages: 760-770
  • Description: 「研究成果報告書概要(和文)」より
• [Journal Article] Contribution of particulate nitrate to airborne measurements of total reactive nitrogen (2005)
  • Author(s): Miyazaki, Y., Y.Kondo, N.Takegawa, R.J.Weber, M.Koike, K.Kita, M.Fukuda, Y.Ma, A.D.Clarke, V.N.Kapustin, F.Flocke, A.J.Weinheimer, M.Zondlo, F.L.Eisele, D.R.Blake, B.Liley
  • Journal Title: J.Geophys.Res. 110, D15304
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Characterization of an Aerodyne Aerosol Mass Spectrometer (AMS) : Intercomparison with other aerosol instruments (2005)
  • Author(s): Takegawa, N., Y.Miyazaki, Y.Kondo, Y.Komazaki, T.Miyakawa, J.L.Jimenez, J.T.Jayne, D.R.Worsnop, J.Allan, R.J.Weber
  • Journal Title: Aerosol Sci.Technol. 39 Pages: 760-770
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Gendai Kisyou Mondai (2005)
  • Author(s): Y, Kondo, et al.
  • Journal Title: Kisyou Handbook Third edition, Asakura syuppan 1010
  • Description: 「研究成果報告書概要(欧文)」より
• [Journal Article] Chracterization of an Aerodyne Aerosol Mass Spectrometer (AMS): Long term stability and intercomparion with other aerosol instruments (2005)
  • Author(s): N.Takegawa, Y.Kondo 他
  • Journal Title: Aerosol Science and Technology 39 Pages: 760-770
• [Book] 実験化学講座、環境科学、3.1.1窒素酸化物 (2007)
  • Author(s): 近藤豊他
  • Total Pages: 519
  • Publisher: 丸善
  • Description: 「研究成果報告書概要(和文)」より
• [Book] 朝倉書店 (2005)
  • Author(s): 近藤豊他
  • Total Pages: 1010
  • Publisher: 気象ハンドブック第3編 現代気象問題
  • Description: 「研究成果報告書概要(和文)」より
• [Book] 気象ハンドブック 第3編 現代気象問題 (2005)
  • Author(s): 近藤 豊 他
  • Total Pages: 1010
  • Publisher: 朝倉書店