Single-Particle Mass Spectroscopy of Ice Nucleating Particles

冰成核粒子的单粒子质谱

• 批准号: 0124927
• 负责人: Sonia Kreidenweis
• 金额: $ 14.5万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-12-01 至 2003-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0124927&HistoricalAwards=false
• 关键词: Single; Particle; Mass; Spectroscopy; Ice

This project will analyze ice nucleating particles in real-time for chemical composition using single-particle mass spectrometry. A continuous flow ice thermal gradient diffusion chamber (CFDC) will be coupled to the NOAA PALMS (Particle Analysis by Laser Mass Spectrometry) instrument and deployed in the field. This research will provide an assessment of the role of various aerosol types as ice nuclei for cirrus cloud formation, and the role of certain constituents as promoters or inhibitors of ice formation. The results of this project are likely to have broad societal impacts by providing new insights into the mechanisms for cloud formation, a topic critical for better understanding climate change.

该项目将使用单粒子质谱法实时分析冰成核粒子的化学成分。一个连续流冰热梯度扩散室（CFDC）将耦合到NOAA PALMS（激光质谱法粒子分析）仪器，并部署在现场。这项研究将评估各种气溶胶类型作为卷云形成冰核的作用，以及某些成分作为冰形成促进剂或抑制剂的作用。该项目的结果可能会产生广泛的社会影响，为云的形成机制提供新的见解，这是一个对更好地理解气候变化至关重要的主题。