Exploring the atmospheric ORIGin of Amines within the Marine boundarY layer: A combined field modelling approach (ORIGAMY)

胺是海洋环境中至关重要但鲜为人知的有机成分。建议它们影响海洋边界层内新粒子和气溶胶团的形成。迄今为止，关于(i)来源，（ii）海洋大气多相化学系统内胺的进一步处理，以及（iii）对海洋气溶胶质量的贡献，仍然存在很大的不确定性。要更深入地了解海洋气溶胶中与胺相关的有机氮形成，以及海洋向大气中可能由氧化控制的排放，需要进行基本的多相氧化模拟研究，并结合专门的现场测量。由于这些胺的多相氧化的详细机制或建模研究尚未进行，因此迄今为止缺少这种方法。ORIGAMY的总体目标是发现影响海洋向大气排放胺的因素及其对有机气溶胶质量、气溶胶酸度和新粒子形成的影响。我们的目标是通过应用专门的新现场测量与新的多相化学建模研究相结合，填补海洋边界层中胺的来源、相分配和氧化过程方面存在的巨大知识空白。因此，结合胺场测量、排放建模和化学老化建模来理解现场结果是本研究将产生的一项新的重大创新成果。ORIGAMY的结果将为确定胺和胺处理在海洋边界层中的重要性以及在更高尺度模型中实施胺相关大气过程的必要性提供重要依据。

Amines are crucial but little understood organic constituent in the marine environment. They are suggested to impact new particle and aerosol mass formation within the marine boundary layer. To date, there are still very high uncertainties with regards to (i) the source, (ii) further processing of amines within the marine atmospheric multiphase chemical system, and (iii) contribution to marine aerosol mass. A deeper understanding of the amine related organic nitrogen formation within marine aerosols as well as possible oxidation-controlled emission from the ocean into the atmosphere requires fundamental mechanistic multiphase oxidation modelling studies combined with dedicated field measurements. Such approaches are missing to date as detailed mechanism or modelling studies about the multiphase oxidation of these amines has not been performed yet.The overall goal of ORIGAMY is to discover the factors influencing the emission of amines from the ocean into the atmosphere and their effect on organic aerosol mass, aerosol acidity and new particle formation. We aim to fill the big gaps of knowledge that exist concerning the sources, phase partitioning, and oxidation processes for amines in the marine boundary layer by applying dedicated new field measurements in combination with novel multiphase chemistry modelling studies. The combination of amine field measurements, emission modelling and modelling of chemical aging to understand the field results is thereby a new big innovative achievement that will result from this study.The results from ORIGAMY will provide an important basis to identify the importance of amine and amine processing in the marine boundary layer and the need to implement amine related atmospheric processes into higher scale models.