Particle Hysteresis And Solidification Experiment : Optical and Nucleation Effects (PHASE-ONE)

美国国家科学基金会化学部的环境化学科学计划支持佛蒙特州大学的Giuseppe Petrucci教授和哈佛大学的Scot T.Martin教授的研究，他们将阐明生物二次气溶胶(BSOA)的分子组成和物相之间的关系，以及随后对BSOA光学性质和云凝聚核(CCN)活动的影响。这项研究将对分子水平的气溶胶特性与BSOA在调节地球辐射平衡中的作用之间的联系建立前所未有的理解。通过汇集每个机构内已有的专门知识和研究基础设施实现的协同作用，将确保迅速推进对大气有机气溶胶这一关键方面的了解。更好地了解有机气溶胶的化学、相和光学性质之间复杂的相互依存关系，以及将获得的基本数据，将对整个大气层科学界大有裨益。此外，合作研究和培训基础设施以及培训机会将得到显著加强，并为今后在这一领域取得进展奠定重要基础。

The Environmental Chemical Sciences Program in the Chemistry Division at the National Science Foundation supports the research of Professors Giuseppe Petrucci from the University of Vermont and Scot T. Martin from Harvard University who will elucidate the relationships between molecular composition and phase of biogenic secondary aerosols (BSOA) and the subsequent impact on BSOA optical properties and cloud condensation nuclei (CCN) activity. This research will build an unprecedented understanding of the link between molecular-level aerosol properties and the role of BSOA in regulating Earth's radiative balance. The synergism made possible by bringing together established expertise and research infrastructure within each institution would ensure rapid advance of the understanding of this critical aspect of atmospheric organic aerosol.The improved understanding of the complex interdependent relationships between chemical, phase and optical properties of organic aerosols, as well as the fundamental data that will be obtained will be of great benefit to the atmospheric sciences community at large. Furthermore, the collaborative research and training infrastructure as well as training opportunities, will be enhanced significantly and provide a critical foundation for future advances in this area.