CAREER: Particle-Resolved Models for Aerosol-Cloud Interactions

气溶胶是内部（多组分）还是外部（单一组分）混合影响气溶胶与云的相互作用。这个CAREER项目的方法集中在开发创新的建模工具，用于量化在微观到全球尺度上气溶胶与云相互作用中每个粒子（单个）气溶胶的微物理和化学特性的影响。这项工作的动机是越来越多的观测证据表明，在单粒子水平上，化学和动力学存在巨大变化。然而，目前这些变化的影响在很大程度上是无法量化的，因为在目前的区域或全球模式中，这种复杂性没有得到很好的体现。这在评估气溶胶对气候的影响时造成了很大的不确定性，限制了我们预测空气污染对气候变化的未来影响。该研究整合了一项全面的教育和推广计划，重点是提高“气候素养”，同时招募学生进入STEM领域。教育计划的目标是学生和教师在中学水平，学生在本科和研究生水平，以及更广泛的社区。

Whether aerosols are internally (multicomponent) or externally (one component) mixed impacts aerosol-cloud interactions. The approach of this CAREER project centers on developing innovative modeling tools for quantifying the impact of per-particle (single) aerosol microphysical and chemical properties on aerosol-cloud interactions, on the micro to global scale. The work is motivated by growing observational evidence that shows tremendous variations in the chemistry and dynamics at a single-particle level. At present, however, the impacts of these variations are largely unquantified since in current regional or global models this complexity is not well-represented. This contributes to the large uncertainties in assessing the impact of aerosols on climate, limiting us from predicting the future impacts of air pollution on climate change.A comprehensive education and outreach plan that focuses on enhancing "climate literacy" along with the the recruitment of students into the STEM fields is integrated with this research. The educational program targets students and teachers at the middle-school level, students at the undergraduate and graduate levels, and the wider community.