Transport and Alteration of Ozone Precursors Through the Marine Boundary Layer: Non-Methane Hydrocarbon Chemistry in Support of AEROCE III

小行星9414259 AEROCE第三阶段的一个主要重点是提高对污染气团离开北美大陆东部时发生的化学过程的认识。 这些气团中的非甲烷碳氢化合物（NHMCs）与氮氧化物（NOx）一起导致臭氧的光化学产生或破坏。 臭氧是一种重要的辐射痕量气体，对生物和人类健康都有影响。 臭氧与羟基自由基OH一起，是调节大气氧化能力的关键因素，即人为排放物（包括NMHC）被分解并从气相中去除的过程。 作为AEROCE计划的一部分，这将在AEROCE的几个现场开始测量海洋大气中的物种（C2 - C10）NMHCs。 拟议的实地测量将提供一个综合的测量设置，以进一步了解北大西洋对流层的NMHCs和光化学氧化剂的化学气候学。

9414259 Milne A major focus of the third phase of AEROCE is to improve the understanding of the chemical processes occurring as polluted air masses move off the eastern North American continent. The presence of non-methane hydrocarbons (NHMCs) in these air masses, together with the oxides of nitrogen (NOx), leads to the photochemical production or destruction of ozone. Ozone is a radiatively important trace gas which has both biological and human health impacts. Together with the hydroxyl radical, OH, ozone is a key factor in regulating the oxidative capacity of the atmosphere, i.e. the processes whereby anthropogenic emissions, including NMHCs, are broken down and removed from the gas phase. As part of the AEROCE program, this will initiate measurements of speciated (C2 - C10) NMHCs in the marine atmosphere at several of the AEROCE field sites. The proposed field measurements will provide an integrated measurement setting with which to further understanding of the chemical climatology of NMHCs and photochemical oxidants in the North Atlantic troposphere.