Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1346988 |
Collaborative Research: Reactive Chlorine Cycling in Marine Air | |
Darin Toohey | |
主持机构 | University of Colorado at Boulder |
项目开始年 | 2015 |
2015 | |
项目结束日期 | 2017-12-31 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 170000(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | This purpose of this research is to lay the fundamental analytical groundwork for the study of reactive chlorine in marine air. Reactive chlorine compounds have the potential to alter the lifetime and reaction pathways of many climate-active gases in the atmosphere. Understanding of tropospheric chlorine chemistry is limited by a lack of in situ observations of chlorine atom precursors and reaction products. The long-term research goal is to assess (1) the levels of Cl atoms in marine air and the photochemical processes controlling them, (2) the impact of chlorine chemistry on methane and other climate-active gases, and (3) the influence of anthropogenic pollutants on atmospheric Cl reactivity. However, achieving that goal requires development of important analytical capability. Accordingly, the immediate objective of this project is to develop and evaluate analytical techniques and instrumentation for measuring the levels of reactive Cl compounds in marine air. This work will have societal impact by improving our understanding of tropospheric chlorine reactivity, particularly towards methane, and human impact on that reactivity. It will also support the education of a graduate student at the University of California, Irvine. This project involves the development and field testing of instrumentation for measuring key compounds in reactive Cl cycling (Cl2, BrCl, HOCl, ClO, HCl, and ClONO2) as well as ancillary measurements (HOx, NO2). These measurements will provide an estimate of Cl atom levels. It is expected that study will eventually lead field observations on the island of Bermuda in both clean marine air and in air impacted by North American outflow of pollutants. The ultimate goal is to develop and validate models that can be used to quantitatively assess the impact of reactive Cl cycling over the oceans on the lifetime of methane and other hydrocarbons. |
URL | 查看原文 |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/67413 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Darin Toohey.Collaborative Research: Reactive Chlorine Cycling in Marine Air.2015. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Darin Toohey]的文章 |
百度学术 |
百度学术中相似的文章 |
[Darin Toohey]的文章 |
必应学术 |
必应学术中相似的文章 |
[Darin Toohey]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论