Measurements of Tropospheric Nitric Acid, Sulfur Dioxide, and Aerosols

这个项目包括几项旨在提高我们对对流层气溶胶化学的认识的活动。第一个活动是长期的莫纳罗亚气溶胶化学记录的延续。该记录包括气溶胶硝酸盐/硝酸，硫酸盐，甲烷磺酸盐，镁和钙。第二项活动涉及空气气溶胶采样器的设计和现场测试。这包括一个总气溶胶采样器（TAS）的测试和一个与多孔扩散器耦合的冲击器的制造和测试，低湍流入口。第三项活动是规划和协调一项主要的实地试验（ACE-Asia），目的是研究东亚流出的气溶胶的组成和物理性质及其在太平洋上空运输过程中的变化。

This project consists of several activities aimed at improving our understanding of tropospheric aerosol chemistry. The first activity is a continuation of the long-term Mauna Loa aerosol chemistry record. This record includes aerosol nitrate/nitric acid, sulfate, methanesulfonate, magnesium, and calcium. The second activity involves the design and field testing of airborne aerosol samplers. This involves the testing of a total aerosol sampler (TAS) and the fabrication and testing of an impactor coupled to a porous diffuser, low turbulence inlet. The third activity involves the planning and coordination of a major field experiment (ACE-Asia) directed at studying the composition and physical properties of aerosols in the outflow from eastern Asia, and their transformations during transport over the Pacific ocean.