Atmospheric aerosol properties inferred from their external mixing state

从外部混合状态推断大气气溶胶特性

• 批准号: 20671001
• 负责人: MOCHIDA Michihiro
• 金额: $ 66.64万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (S)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20671001/
• 关键词: 環境計測; 大気エアロゾル; 大気化学; エアロゾル; 外部混合; 質量分析; 気候変動

Understanding the mixing state of atmospheric aerosols, i.e., the differences among individual particles in them, is crucial for assessing the effect of aerosols on climate. In this study, we performed atmospheric aerosol measurements with a focus on particle hygroscopicity as a measure of the aerosol mixing state, thereby acquiring knowledge of the relationship of the particles' hygroscopicity to their composition and cloud condensation nucleus activity. We also assessed the contribution of aerosol particles to cloud formation by making use of the hygroscopicity data. The outcome of this study could serve as a guide for future studies on aerosol mixing states.

了解大气气溶胶的混合状态，即，其中单个颗粒之间的差异对于评估气溶胶对气候的影响至关重要。在这项研究中，我们进行了大气气溶胶测量，重点是颗粒吸湿性作为衡量气溶胶混合状态，从而获得知识的颗粒的吸湿性，其组成和云凝结核活动的关系。我们还评估了气溶胶粒子的云形成的贡献，利用吸湿性数据。本研究结果可作为未来研究气溶胶混合状态的指导。

项目成果

Assessment of cloud condensation nucleus activation of urban aerosol particles with different hygroscopicity and the application to the cloud parcel model

• DOI: 10.1002/2013jd020827
• 发表时间: 2014-03
• 期刊: Journal of Geophysical Research: Atmospheres
• 作者: K. Kawana;N. Kuba;M. Mochida

Atmospheric aerosol studies using HR-ToF-AMS, HTDMA, and CCNC in Japan

日本使用 HR-ToF-AMS、HTDMA 和 CCNC 进行大气气溶胶研究

• 发表时间: 2013
• 作者: Isotani A.;et al;M. Mochida
• 通讯作者: M. Mochida

Assessment of cloud droplet growth based on the measurements of hygroscopicity and CCN activity of aerosol particles in Nagoya, Japan

基于日本名古屋气溶胶颗粒吸湿性和 CCN 活性测量的云滴生长评估

• 发表时间: 2011
• 作者: K.Kawana;M.Mochida;N.Kuba
• 通讯作者: N.Kuba

Chemical composition of single particles in urban aerosols and the relationship to the particle hygroscopicity.

城市气溶胶中单个颗粒的化学组成及其与颗粒吸湿性的关系。

• 发表时间: 2012
• 作者: M. Mochida;T. Mihara;H. Furutani;M. Uematsu;and Y. Setoguchi
• 通讯作者: and Y. Setoguchi

Particle effective density measurement using a DMA-APM-CPC system in Nagoya, Japan : Estimation of mixing state and shape

使用日本名古屋的 DMA-APM-CPC 系统进行颗粒有效密度测量：混合状态和形状的估计

• 发表时间: 2013
• 期刊: 国際シンポジウム 電子顕微鏡を用いたエアロゾル研究, 気象研究所技術報告
• 作者: Nakayama;T.;Y. Sawada;Y. Ikeda;Y. Matsumi;Y. Setoguchi;K. Kawana;M. Mochida
• 通讯作者: M. Mochida