Airborne Measurements of Aerosol Physio-Chemistry and Optical Properties of Aerosols

该项目的目的是，在将于墨西哥城开展的2006年特大城市对区域和全球环境的影响运动和洲际和特大城市污染实验期间，利用国家科学基金会C-130飞机上运行的一套仪器，对气溶胶颗粒的光学和物理特性进行一整套测量。该仪器套件包括凝聚核计数器（CNC），串联挥发性差迁移率分析仪（DMA），光学颗粒计数器（OPC），空气动力学颗粒尺寸，三波长浊度计，三波长颗粒烟尘吸收光度计（PSAP）和快速迁移率粒度仪（FMPS）。 这种组合仪器套件将允许测量环境原位气溶胶粒度分布，微物理和光学特性，以及物理化学特性。研究结果将用于更好地了解从城市到区域再到全球的转变过程中气溶胶混合状态及其物理、化学和光学特性的变化，并核实和完善对模型和卫星产品的解释。一名博士后学生和一名研究生将在该项目的赞助下获得支持。两人都将参与实地活动和随后的数据分析。最终数据将通过数据档案和网站提供给社区。

This project is designed to conduct a comprehensive set of measurements of the optical and physical properties of aerosol particles using an instrument suite operated on the NSF C-130 aircraft during the 2006 Megacities Impacts on Regional and Global Environments (MIRAGE) Campaign to be conducted in Mexico City and the Intercontinental and Megacity Pollution Experiment (IMPEX). The instrument suite includes Condensation Nuclei Counters (CNCs), a Tandem Volatility Differential Mobility Analyzer (DMA), Optical Particle Counters (OPCs), aerodynamic particle sizing, a three-wavelength nephelometer, a three-wavelength particle soot absorption photometer (PSAP), and a Fast Mobility Particle Sizer (FMPS). This combined instrumentation suite will allow measurements of ambient in-situ aerosol size-distributions, microphysical and optical properties, and physio-chemical characteristics. The results will be used to improve the understanding of changes in the mixing state of aerosols and their physical, chemical and optical properties over the urban-to-regional-to-global transition, and to verify and refine the interpretation of model and satellite products. One post-doctoral student and one graduate student will receive support under the auspices of this project. Both will be involved in the field campaigns and in subsequent data analysis. Final data will be made available to the community via data archives and websites.