Aerosol Size Distribution, Composition, Optical, and Hygroscopic Property Measurements in ACE-Asia

作为ACE-ASIA(气溶胶特性实验)的一部分，该项目支持部署一架双水獭飞机和地面测量。Twin Otter将推出一套全面的仪器，用于测量气溶胶的物理、化学和光学性质，包括粒度分布、吸湿特性(串联式差示迁移率分析仪)、粒度分离化学和新型单粒子光谱仪。研究飞行的目标是确定亚洲外流区域的气溶胶特征，并进行局部和柱状辐射闭合研究。与香港科技大学的一名科学家合作，飞机和韩国济州岛及其他地点的地面站收集的气溶胶样本将通过提取、衍生化和GC/MS分析来分析有机/元素碳(EC/OC)和形态有机物。将与Carmichael博士(爱荷华大学)合作，使用三维大气化学传输模型进行模拟研究，该模型包括气相化学、气溶胶微物理、热力学、气体/颗粒转化和人为排放。

This project supports the deployment of a Twin Otter aircraft and ground-based measurements as part of ACE-Asia (Aerosol Characterization Experiment). A comprehensive instrument package for the Twin Otter will be available for measurements of aerosol physical, chemical, and optical properties, including size distribution, hygroscopic properties (Tandem Differential Mobility Analyzer), size-segregated chemistry, and a novel single particle spectrometer. The objectives of the research flights are to characterize the aerosol in the Asian outflow region and to perform local and column radiative closure studies. In collaboration with a scientist at HKUST (Hong Kong University of Science and Technology), aerosol samples collected by the aircraft and at ground stations in Cheju Island, Korea, and other locations will be analyzed for organic/elemental carbon (EC/OC) and speciated organics via extraction, derivatization, and GC/MS analysis. Modeling studies will be performed in collaboration with Dr. Carmichael (University of Iowa) using a three-dimensional atmospheric chemical transport model which includes gas-phase chemistry, aerosol microphysics, thermodynamics, gas/particle conversion and anthropogenic emissions.