The Role of Anthropogenic Emissions in the Oxidizing Capacity of the Troposphere (AEROCE III)

人为排放对对流层氧化能力的作用 (AEROCE III)

• 批准号: 9421079
• 负责人: Russell Dickerson
• 金额: $ 43.26万
• 依托单位: University of Maryland, College Park
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-09-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9421079&HistoricalAwards=false
• 关键词: Role; Anthropogenic; Emissions; Oxidizing; Capacity

9421079 Dickerson Bordered by two of the Earth's major industrial regions, the North Atlantic Ocean (NAO) is one of the remote areas of the Earth most likely impacted by air pollution. The overlying marine troposphere is also an ideal laboratory in which to study the chemical and meteorological mechanisms leading to the long-range transport of pollution, and the consequent perturbation of the radiative properties and oxidizing capacity of atmosphere. The overall goal of this work is: To understand the role of anthropogenic emissions and natural processes in the ozone budget and oxidizing capacity of the troposphere over the North Atlantic Ocean. The primary data set for this project will be collected in the spring of 1996 when we conduct a carefully planned airborne experiment with the University of Wyoming King Air supported by surface intensive experiments and ozonesonde launches from the US east coast and Bermuda. The King Air has the payload and range to carry the essential instruments on flight paths near fronts and out to Bermuda. Its crew is also experienced with research in convective conditions. This work will be supplemented with collaborative surface measurements made on Bermuda, and in Maryland by the NOAA Air Resources Laboratory. Detailed meteorological guidance for the field programs will be provided by colleagues. For example, the ozonesonde launches will be triggered by forecasts of interesting transport conditions. Flights will coordinate as far as possible with other experiments conducted in our area at the same time. We will work with the NOAA Aeronomy Lab and their P-3 flights to assure that compatibility of analytical methods, and share results. We will incorporate experimental results into global, hemispheric, and regional models to show the large-scale impact of anthropogenic emissions. Initial model results will, in turn, help direct the next phase of experiments.

北大西洋（NAO）毗邻地球上两个主要的工业区，是地球上最容易受到空气污染影响的偏远地区之一。上覆的海洋对流层也是一个理想的实验室，用于研究导致污染远距离输送的化学和气象机制，以及由此引起的大气辐射特性和氧化能力的扰动。这项工作的总体目标是：了解人为排放和自然过程在北大西洋上空对流层臭氧收支和氧化能力中的作用。该项目的主要数据集将于1996年春季收集，届时我们将与怀俄明国王航空大学进行一次精心计划的空中实验，并由地面密集实验和从美国东海岸和百慕大发射臭氧探空仪提供支持。“空中之王”的有效载荷和航程足以在锋线附近和百慕大的航线上携带必要的仪器。它的机组人员在对流条件下的研究也很有经验。这项工作将由美国国家海洋和大气管理局空气资源实验室在百慕大和马里兰州合作进行的地面测量作为补充。同事们将为实地项目提供详细的气象指导。例如，臭氧探空仪的发射将由有关运输情况的预报触发。飞行将尽可能与本地区同时进行的其他实验协调。我们将与NOAA航空实验室及其P-3航班合作，确保分析方法的兼容性，并共享结果。我们将把实验结果纳入全球、半球和区域模式，以显示人为排放的大规模影响。最初的模型结果将反过来帮助指导下一阶段的实验。