Measurements of Tropospheric Nitric Acid, Sulfur Dioxide, and Aerosols

该项目包括若干活动，旨在增进我们对对流层气溶胶化学的了解。第一项活动是长期莫纳罗亚气溶胶化学记录的延续。该记录包括气雾剂硝酸盐/硝酸、硫酸盐、甲烷磺酸、镁和钙。第二项活动涉及设计和实地测试气载气溶胶采样器。这包括对总气溶胶采样器(TAS)的测试，以及与多孔扩散器、低湍流入口耦合的冲击器的制造和测试。第三项活动涉及规划和协调一项大型实地实验(ACE-ASIA)，其目的是研究东亚流出的气溶胶的组成和物理性质，以及它们在太平洋运输过程中的变化。

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.