Low temperature reactivity of tropospheric aerosols

对流层气溶胶的低温反应性

• 批准号: NE/C003993/1
• 负责人: Richard Cox
• 金额: $ 24.12万
• 依托单位: University of Cambridge
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FC003993%2F1
• 关键词: Low; temperature; reactivity; tropospheric; aerosols

Aerosols are very small liquid and solid particles suspended in a gaseous medium, e.g. air. They influence the chemistry of trace gases within the Earth's atmosphere. This project has two parts. In the first we propose to develop a state of the art apparatus that will allow measurements of particle size and related properties at low temperatures and at a significantly improved level of accuracy and precision over what is currently available. Second, we want to use this new instrument to study the reactivity of atmospheric trace gases with different types of aerosol particles. These measurements will improve and extend our ability to describe atmospheric chemistry at the global scale within computer models. The work programme presented involves the study of chemistry under conditions relevant to the polar regions and at higher altitudes in the atmosphere.

气溶胶是悬浮在气体介质（例如空气）中的非常小的液体和固体颗粒。它们影响着地球大气中微量气体的化学成分。这个项目有两个部分。首先，我们建议开发一种最先进的仪器，它将允许在低温下测量颗粒大小和相关特性，并且在目前可用的准确度和精度上显着提高。其次，我们想用这个新仪器来研究大气中微量气体与不同类型气溶胶粒子的反应性。这些测量将提高和扩展我们在计算机模型中描述全球尺度大气化学的能力。所提出的工作方案涉及在与极地地区有关的条件下和在大气中较高高度的化学研究。