Measurement of optical properties of black carbon aerosols with the photoacoustic technique

• Project/Area Number: 18310004
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Ibaraki University
• Principal Investigator: KITA Kazuyuki Ibaraki University, 理学部, 准教授 (30221914)
• Co-Investigator(Kenkyū-buntansha): NOZAWA Satoshi 茨城大学, 理学部, 准教授 (10261736) ; KONDOH Yutaka 東京大学, 先端科学技術研究センター, 教授 (20110752) ; TAKEGAWA Nobuyuki 東京大学, 先端科学技術研究センター, 准教授 (00324369) ; SUZUKI Makoto 宇宙航空研究開発機構, 宇宙科学本部, 主幹研究員 (60142098)
• Project Period (FY): 2006 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥16,090,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥1,890,000); Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2008: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000); Fiscal Year 2007: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2006: ¥7,900,000 (Direct Cost: ¥7,900,000)
• Keywords: 地球温暖化 / 黒色炭素エアロゾル / エアロゾル直接効果 / 音響光学法 / エアロゾル放射特性 / 気候変動 / 炭素エアロゾル / エアロゾル / 黒色炭素 / 直接効果

Research Abstract

For the understanding and the prediction of the climate change, it is essential to measure the light absorption, or the atmospheric heating, by black carbon aerosols (BC). Although the BC light absorption can be enhanced with the coating of other material, high-precision measurement of BC light absorption and the enhancement with the coating is impossible with conventional techniques. This study succeeded in them by adopting photoacoustic technique measuring. In a laboratory experiment using artificial BC, the BC light absorption and the enhancement with the coating have been precisely measured to show that it increased by a factor between 1.5 and 2.0 with the thickness of the coating. In this study, the BC light absorption and the coating effect have also been measured.

Research Products

• [Journal Article] Size-dependent correction factors for absorption measurements using filter-based photometers : PSAP and COSMOS (2010)
  • Author(s): T. Nakayama, Y. Kondo, N. Moteki, L. K. Sahu, T. Kinase, K. Kita, Y. Matsumi
  • Journal Title: Journal of Aerosol Science 41 Pages: 333-343
  • Peer Reviewed
• [Journal Article] Amplification of light absorption of black carbon by organic coating (2010)
  • Author(s): M. Shiraiwa, Y. Kondo, T. Iwamoto, K. Kita
  • Journal Title: Aerosol Science and Technology 44 Pages: 46-54
  • Peer Reviewed
• [Journal Article] Amplification of light absorption of black carbon by organic coating (2010)
  • Author(s): M.Shiraiwa, K, Kita, 他2名
  • Journal Title: Aerosol Science and Technology 44 Pages: 46-54
  • Peer Reviewed
• [Journal Article] Size-dependent correction factors for absorption measurements using filter-based photometers : PSAP and COSMOS (2010)
  • Author(s): T.Nakayama, K.Kita, 他5名
  • Journal Title: Journal of Aerosol Science 41 Pages: 333-343
  • Peer Reviewed
• [Journal Article] Stabilization of the mass absorption cross section of black carbon for filter-based absorption photometry by the use of a heated inlet (2009)
  • Author(s): Y. Kondo, L. Sahu, M. Kuwata, Y. Miyazaki, N. Takegawa, N. Moteki, J. Imaru, S. Han, T. Nakayama, N. T. KimOanh, M. Hu, Y. J. Kim, K. Kita
  • Journal Title: Aerosol Science and Technology 43(8) Pages: 741-756
  • Peer Reviewed
• [Journal Article] Chemical characterization of water-soluble organic carbon aerosols at a rural site in the Pearl River Delta, China, in the summer of 2006 (2009)
  • Author(s): Y. Miyazaki, Y. Kondo, M. Shiraiwa, N. Takegawa, T. Miyakawa, S. Han, K. Kita, M. Hu, Z. Q. Deng, Y. Zhao, N. Sugimoto, D. R. Blake, R. J. Weber
  • Journal Title: Journal of Geophysical Research 114(D14208)
  • Peer Reviewed
• [Journal Article] Spatial and Temporal Variations of Aerosols around Beijing in the Summer 2006 : 1. Model Evaluation and Source Apportionment (2009)
  • Author(s): H. Matsui, M. Koike, Y. Kondo, N. Takegawa, K. Kita, Y. Miyazaki, M. Hu, S-Y. Chang, D. R. Blake, J. D. Fast, R. A. Zaveri, D. G. Streets, Q. Zhang, T. Zhu
  • Journal Title: Journal of Geophysical Research 114(D00G13)
  • Peer Reviewed
• [Journal Article] Aerosol optical properties observed during Campaign of Air Quality Research in Beijing 2006 (CAREBeijing-2006) : Characteristic differences between the inflow and outflow of Beijing city air (2009)
  • Author(s): R. M. Garland, O. Schmid, A. Nowak, P. Achtert, A. Wiedensohler, S. S. Gunthe, N. Takegawa, K. Kita, Y. Kondo, M. Hu, M. Shao, L. M. Zeng, T. Zhu, M. O. Andreae, U. Poschl
  • Journal Title: Journal of Geophysical Research 114(D00G04)
  • Peer Reviewed
• [Journal Article] Variability of submicron aerosol observed at a rural site in Beijing in the summer of 2006 (2009)
  • Author(s): N. Takegawa, T. Miyakawa, M. Kuwata, Y. Kondo, Y. Zhao, S. Han, K. Kita, Y. Miyazaki, Z. Deng, R. Xiao, M. Hu, D. van Pinxteren, H. Herrmann, A. Hofzumahaus, F. Holland, A. Wahner, D. R. Blake, N. Sugimoto, T. Zhu
  • Journal Title: Journal of Geophysical Research 114(D00G05)
  • Peer Reviewed
• [Journal Article] Stabilization of the mass absorption cross section of black carbon for filter-based absorption photometry by the use of a heated inlet (2009)
  • Author(s): Y.Kondo, K.Kita, 他12名
  • Journal Title: Aerosol Science and Technology 43 Pages: 741-759
  • Peer Reviewed
• [Journal Article] Aerosol optical properties in a rural environment near the mega-city Guangzhou, China : Implications for regional air pollution and radiative forcing (2009)
  • Author(s): Garland, K. Kita, N. Takegawa, Y.Kondo, 他
  • Journal Title: Atmospheric Chemistry and Physics 8 Pages: 5161-5186
  • Peer Reviewed
• [Journal Article] Aerosol optical properties observed during Campaign of Air Quality Research in Beijing 2006 (CAREBeijing-2006) : Characteristic differences between the inflow and outflow of Beijing city air (2009)
  • Author(s): Garland, R. M., K. Kita, N. Takegawa, Y.Kondo, 他
  • Journal Title: J. Geophys. Res. 114 doi : 10.1029/2008JD010780
  • Peer Reviewed
• [Journal Article] Variability of submicron aerosol observed at a rural site in Beijing in the summer of 2006 (2009)
  • Author(s): N. Takegawa, Y. Kondo, K. Kita, 他
  • Journal Title: J. Geophys. Res. 114 doi : 10.1029/ 2008JD010857
  • Peer Reviewed
• [Journal Article] Aerosol optical properties observed during Campaign of Air Quality Research in Beijing 2006 (CAREBeijing-2006) : Characteristic differences between the inflow and outflow of Beijing city air (2009)
  • Author(s): Garland, R..M., K. Kita, 他13名
  • Journal Title: J. Geophys. Res 114
  • Peer Reviewed
• [Journal Article] Variability of submicron aerosol observed at a rural site in Beijing in the summer of 2006 (2009)
  • Author(s): N. Takegawa, K. Kita, 他
  • Journal Title: J. Geophys. Res 114
  • Peer Reviewed
• [Journal Article] Aerosol optical properties in a rural environment near the mega-city Guangzhou, China: implications for regional air pollution, radiative forcing and remote sensing (2008)
  • Author(s): R. M. Garland, H. Yang, O. Schmid, D. Rose, A. Nowak, P. Achtert, A. Wiedensohler, N. Takegawa, K. Kita, Y. Miyazaki, Y. Kondo, M. Hu, M. Shao, L. M. Zeng, Y. H. Zhang, M. O. Andreae, U. Pochl
  • Journal Title: Atmospheric Chemistry and Physics 8 Pages: 5161-5186
  • Peer Reviewed
• [Journal Article] Aerosol optical properties in a rural environment near the mega-city Guangzhou, China: Implications for regional air pollution and radiative forciner (2008)
  • Author(s): R. Garland, ほか
  • Journal Title: Atmospheric Chemistry and Physics 8 Pages: 5161-5186
  • Peer Reviewed
• [Presentation] Increase of light absorption of BC with the coating ～ a laboratory experiment and field measurement in Tokyo、International Workshop (2010)
  • Author(s): K. Kita T. Kinase, 他
  • Organizer: Frontiers of Black Carbon Studies
  • Place of Presentation: 東京都、東京大学先端科学技術研究センター
  • Year and Date: 2010-01-25
• [Presentation] Size-dependent correction factors for absorption measurements using filter-based photometers : PSAP and COSMOS、International Workshop (2010)
  • Author(s): T. Nakayama, K,. Kita, 他
  • Organizer: Frontiers of Black Carbon Studies
  • Place of Presentation: 東京都、東京大学先端科学技術研究センター
  • Year and Date: 2010-01-25
• [Presentation] Increase of light absorption of BC with the coating～ a laboratory experiment and field measurement in Tokyo (2010)
  • Author(s): 北和之, 木名瀬健, 他
  • Organizer: International Workshop "Frontiers of Black Carbon Studies"
  • Place of Presentation: 東京大学先端科学技術研究センター
  • Year and Date: 2010-01-25
• [Presentation] Size-dependent correction factors for absorption measurements using filter-based photometers : PSAP and COSMOS (2010)
  • Author(s): 中山智樹, 北和之, 他
  • Organizer: International Workshop "Frontiers of Black Carbon Studies"
  • Place of Presentation: 東京大学先端科学技術研究センター
  • Year and Date: 2010-01-25
• [Presentation] フィルター光吸収法 (PSAP, COSMOS) によるエアロゾル吸収係数測定における系統誤差の実験的評価 (2009)
  • Author(s): 中山智樹, 北和之, 他
  • Organizer: 大気化学討論会
  • Place of Presentation: つくば市つくば国際会議場
  • Year and Date: 2009-10-20
• [Presentation] 単一粒径のBC光特性および内部混合による変化の定量化実験 (2009)
  • Author(s): 木名瀬健, 北和之, 他
  • Organizer: 大気化学討論会
  • Place of Presentation: つくば市つくば国際会議場
  • Year and Date: 2009-10-20
• [Presentation] 単一粒径のBC光特性および内部混合による変化の定量化実験 (2009)
  • Author(s): 木名瀬健、北和之, 他
  • Organizer: 大気化学討論会
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2009-10-20
• [Presentation] フィルター光吸収法(PSAP,COSMOS)によるエアロゾル吸収係数測定における系統誤差の実験的評価 (2009)
  • Author(s): 中山智樹、北和之, 他
  • Organizer: 大気化学討論会
  • Place of Presentation: つくば国際会議場
  • Year and Date: 2009-10-20
• [Presentation] 単一粒径黒色炭素エアロゾルの被覆による放射特性変化の測定 (2009)
  • Author(s): 木名瀬健, 北和之, 他
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 千葉市幕張メッセ
  • Year and Date: 2009-05-20
• [Presentation] 単一粒径黒色炭素エアロゾルの被覆による放射特性変化の測定 (2009)
  • Author(s): 木名瀬健、北和之, 他
  • Organizer: 日本地球惑星科学連合大会
  • Place of Presentation: 千葉市、幕張メッセ
  • Year and Date: 2009-05-20
• [Presentation] PASSを用いた東京における黒色炭素エアロゾルの観測 (2008)
  • Author(s): 北和之, 他
  • Organizer: 日本気象学会2008年度春季大会
  • Place of Presentation: 横浜市開港記念会館
  • Year and Date: 2008-05-21
• [Presentation] PASSを用いた東京における黒色炭素エアロゾルの観測 (2008)
  • Author(s): 北 和之、木名瀬 健、近藤 豊, ほか
  • Organizer: 日本気象学会
  • Place of Presentation: 横浜
  • Year and Date: 2008-05-21
• [Presentation] PASSと従来法によるエアロゾル光吸収量の比較 (2008)
  • Author(s): 木名瀬 健、北 和之、近藤 豊, 他
  • Organizer: 第14回大気化学討論会
  • Place of Presentation: 横浜
• [Presentation] PASSを用い準東京における黒色炭素エアロゾルの観測 (2008)
  • Author(s): 北和之、木名瀬健, 他2名
  • Organizer: 日本気象学会
  • Place of Presentation: 横浜市開港記念会館
• [Presentation] 光音響法を用いた黒色炭素粒子の光吸収特性の測定 (2007)
  • Author(s): 岩本達志, 北和之, 他
  • Organizer: 第13回大気化学討論会
  • Place of Presentation: 名古屋市名古屋大学野依記念学術交流館
• [Presentation] 光音響法を用いた黒色炭素粒子の光吸収特性の測定 (2007)
  • Author(s): 岩本達志、北 和之、近藤 豊, ほか
  • Organizer: 第13回大気化学討論会
  • Place of Presentation: 名古屋
• [Presentation] 光音響法を用いた黒色炭素粒子の光吸収特性の測定 (2007)
  • Author(s): 岩本達志、北和之, ほか
  • Organizer: 第13回大気化学討論会
  • Place of Presentation: 名古屋大学野依記念学術交流館
• [Remarks] ホームページ等茨城大学研究者情報総覧
  • URL: http://info.ibaraki.ac.jp/scripts/websearch/index.htm
• [Remarks]
  • URL: http://info.ibaraki.ac.jp/scripts/websearch/index.htm
• [Remarks]
  • URL: http://info.ibaraki.ac.jp/scripts/websearch/index.html
• [Remarks] 茨城大学研究者情報総覧
  • URL: http://info.ibaraki.ac.jp/scripts/websearch/index.htm