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

该项目支持部署一架双水獭飞机和地面测量，作为ACE-亚洲（气溶胶特性实验）的一部分。Twin Otter的综合仪器包将用于测量气溶胶的物理，化学和光学特性，包括尺寸分布，吸湿性（串联微分迁移率分析仪），尺寸分离化学和新型单粒子光谱仪。研究飞行的目的是确定亚洲外流区域气溶胶的特征，并进行局部和气柱辐射闭合研究。与香港科技大学的科学家合作，通过飞机和韩国济州岛和其他地点的地面站收集的气溶胶样品将通过萃取，衍生和GC/MS分析来分析有机/元素碳（EC/OC）和物种有机物。将与卡迈克尔博士（爱荷华州大学）合作进行建模研究，使用三维大气化学传输模型，其中包括气相化学、气溶胶微观物理学、热力学、气体/粒子转化和人为排放。

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.