| 项目编号: | 1602086
|
| 项目名称: | Activation and Growth of Newly Formed Atmospheric Particles |
| 作者: | Richard Flagan
|
| 承担单位: | California Institute of Technology
|
| 批准年: | 2016
|
| 开始日期: | 2016-05-01
|
| 结束日期: | 2019-04-30
|
| 资助金额: | 634599
|
| 资助来源: | US-NSF
|
| 项目类别: | Standard Grant
|
| 国家: | US
|
| 语种: | 英语
|
| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
|
| 英文关键词: | growth
; atmosphere
; new particle formation
; multicomponent activation kinetics
; secondary activation
; new particle
; nucleated clusters/particles
; stable particle
; model new particle formation
|
| 英文摘要: | This project is focused on the study of the formation and growth of new particles in the atmosphere. It involves an international collaboration that enables U.S. scientists to work at CERN, the European Organization for Nuclear Research in Switzerland, at the CLOUD (COsmics Leaving Outdoor Droplets) chamber there. The results of this research are expected to have implications that go beyond the atmospheric sciences, to numerous industrial and other natural processes.
The objectives of this research are to: (1) advance measurement methods to make it possible to measure the size distribution of freshly nucleated clusters/particles as a function of time as they exist in the atmosphere in which they are formed in order to map their passage through the Kelvin regime, i.e., from near critical, or even sub-critical cluster sizes through to stable particles; (2) measure and model the multicomponent activation kinetics as low volatility organic compounds and extremely low volatility organic compounds condense on inert and sulfuric acid clusters in the Kelvin size regime, varying the temperature and composition of the atmosphere to probe the underlying mechanisms; (3) measure and model new particle formation, secondary activation, and growth in carefully controlled chamber experiments in order to constrain and parameterize new particle formation under a wide range of atmospheric conditions and for key aerosol precursors. |
| 资源类型: | 项目
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/92387
|
| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
|
|
There are no files associated with this item.
|
| Recommended Citation: | |
Richard Flagan. Activation and Growth of Newly Formed Atmospheric Particles. 2016-01-01.
|
|
|