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

光声技术测量黑碳气溶胶的光学特性

• 批准号: 18310004
• 负责人: KITA Kazuyuki
• 金额: $ 10.3万
• 依托单位: Ibaraki University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18310004/
• 关键词: 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

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.

为了了解和预测气候变化，测量黑碳气溶胶对光的吸收或大气加热是必不可少的。虽然其他材料的涂层可以增强BC光的吸收，但用传统技术无法高精度地测量BC光的吸收并利用涂层来增强BC光的吸收。本研究采用光声技术进行测量，取得了较好的效果。在使用人工BC的实验室实验中，对BC的光吸收和涂层的增强进行了精确的测量，结果表明，随着涂层厚度的增加，BC的光吸收增加了1.5到2.0倍。在本研究中，还测量了BC光吸收和涂层效果。

项目成果

Increase of light absorption of BC with the coating ～ a laboratory experiment and field measurement in Tokyo、International Workshop

BC 的光吸收随着涂层的增加 ~ 东京国际研讨会的实验室实验和现场测量

• 发表时间: 2010
• 作者: K. Kita T. Kinase;他
• 通讯作者: 他

光音響法を用いた黒色炭素粒子の光吸収特性の測定

光声法测量黑碳颗粒的光吸收特性

• 发表时间: 2007
• 作者: 岩本達志;北和之;他
• 通讯作者: 他

Variability of submicron aerosol observed at a rural site in Beijing in the summer of 2006

• DOI: 10.1029/2008jd010857
• 发表时间: 2009-01
• 期刊: Journal of Geophysical Research
• 作者: N. Takegawa;T. Miyakawa;M. Kuwata;Y. Kondo;Yongjing Zhao;S. Han;K. Kita;Y. Miyazaki;Z. Deng-

Stabilization of the Mass Absorption Cross Section of Black Carbon for Filter-Based Absorption Photometry by the use of a Heated Inlet

• DOI: 10.1080/02786820902889879
• 发表时间: 2009-05
• 期刊: Aerosol Science and Technology
• 影响因子: 5.2
• 作者: Y. Kondo;L. Sahu;M. Kuwata;Y. Miyazaki;N. Takegawa;N. Moteki;J. Imaru;S. Han;T. Nakayama;N. Oanh;Min Hu;Y. J. Kim;K. Kita

Size-dependent correction factors for absorption measurements using filter-based photometers: PSAP and COSMOS

• DOI: 10.1016/j.jaerosci.2010.01.004
• 发表时间: 2010-04
• 期刊: Journal of Aerosol Science
• 影响因子: 4.5
• 作者: T. Nakayama;Y. Kondo;N. Moteki;L. Sahu;Takeshi Kinase;K. Kita;Y. Matsumi