Solvated Salts and Acids: Contributions to Basic Understanding of Nucleation, Particle Growth and Aerosol Chemistry

该项目涉及对与大气相关的含水系统（即云滴、水合气溶胶和冰晶）中酸和盐溶解过程的实验室研究。 这些活动包括详细研究酸和盐的溶剂化作用，鉴定酸对冷凝相和气相之间卤化物分配的影响，以及检查离子诱导成核。 所有这些活动都具有重要的现实意义，因为有必要增加对气溶胶-气体相互作用和卤素在对流层化学中可能发挥的作用的基本了解。 此外，推测离子诱导成核的可能重要性已经出版，但基本的热化学数据需要定量评估它是缺乏的。 本研究旨在解决我们在这些领域的理解目前的差距。更广泛的影响，这个项目包括提供高质量的研究生培训，在这些重要的和专题的研究领域。 此外，这项工作的结果可能会大大影响对基本气溶胶相关过程的理解，从而改进数值模型，并可能提高预测全球变化引起的相关大气过程变化的能力。

This project involves laboratory studies of processes related to acid and salt dissolution in atmospherically relevant aqueous systems, namely cloud droplets, hydrated aerosols, and ice crystals. The activities include detailed studies of the solvation of acids and salts, qualifying the influence of acids on the partitioning of halides between the condensed and gas phases, and examination of ion-induced nucleation. All of these activities have significant current relevance as there is need for increased fundamental understanding of aerosol-gas interactions and the possible role of halogens in tropospheric chemistry. In addition, speculations on the possible importance of ion-induced nucleation have been published, but the basic thermochemical data needed to assess it quantitatively are lacking. This study seeks to address current gaps in our understanding in these areas.Broader impacts of this project include providing high quality training of graduate students in these important and topical research areas. In addition, the results of this work are likely to significantly impact understanding of basic aerosol-related processes, thus leading to improved numerical models, and likely better ability to predict changes in related atmospheric processes due to global changes.