Activation and Growth of Newly Formed Atmospheric Particles

GSTDTAP

项目编号	1602086
	Activation and Growth of Newly Formed Atmospheric Particles
	Richard Flagan
主持机构	California Institute of Technology
项目开始年	2016
	2016-05-01
项目结束日期	2019-04-30
资助机构	US-NSF
项目类别	Standard Grant
项目经费	634599(USD)
国家	美国
语种	英语
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.
来源学科分类	Geosciences - Atmospheric and Geospace Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/69476
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Richard Flagan.Activation and Growth of Newly Formed Atmospheric Particles.2016.