AGS-PRF: A Global Survey of Atmospheric Hydroperoxides: HOx Cycling, Tropospheric Ozone and Chemistry-Climate Interactions

GSTDTAP

项目编号	1524860
	AGS-PRF: A Global Survey of Atmospheric Hydroperoxides: HOx Cycling, Tropospheric Ozone and Chemistry-Climate Interactions
	Michelle Kim
主持机构	Kim Michelle J
项目开始年	2015
	2015-06-01
项目结束日期	2017-05-31
资助机构	US-NSF
项目类别	Fellowship
项目经费	172000(USD)
国家	美国
语种	英语
英文摘要	This project supports an NSF Postdoctoral Research Fellow to investigate the atmospheric chemistry of biogenic isoprene emissions. Isoprene can be produced by terrestrial ecosystems and can react differently in the atmosphere depending on what other gases and aerosols are present. Nitrogen oxide concentrations can influence the extent to which isoprene contributes to the formation of ozone or very small organic particles in the atmosphere. This research investigates isoprene oxidation processes in conditions with low concentrations of nitrogen oxides (NOx), and the effects of isoprene oxidation products on ozone and the formation of secondary organic aerosol (SOA). The focus is on the formation, destruction and physical uptake processes of hydroperoxides. The research is expected to address long-standing questions about hydrogen peroxide deposition rates and its impact on the budget of hydrogen oxide radicals (HOx), and lead to new parameterizations based on in-situ data. The contribution of isoprene to SOA formation will be investigated by examining the sources and sinks of each oxidation reaction across a wide variety of environmental conditions. A novel instrument will be deployed for the separation of isoprene oxidation products to examine the different chemical fates of each.
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/67989
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Michelle Kim.AGS-PRF: A Global Survey of Atmospheric Hydroperoxides: HOx Cycling, Tropospheric Ozone and Chemistry-Climate Interactions.2015.