Single-Particle Mass Spectroscopy of Ice Nucleating Particles

该项目将使用单粒子质谱仪实时分析成冰颗粒的化学成分。一个连续流动的冰热梯度扩散室(CFDC)将与NOAA PAMS(粒子分析激光质谱仪)仪器耦合并部署在野外。这项研究将评估不同类型的气溶胶作为卷云形成的冰核的作用，以及某些成分作为冰形成的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，因为它为云的形成机制提供了新的见解，这是一个对更好地理解气候变化至关重要的话题。

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.